Patent Publication Number: US-2022221415-A1

Title: Sensor assembly and control method thereof

Description:
TECHNICAL FIELD 
     The present disclosure relates to a sensor assembly and a control method therefor. 
     BACKGROUND ART 
     Recently, research on human five senses has been actively conducted, and technical implementation of human five senses is being continuously developed. In particular, development of a technology that mimics the human sense of smell is being developed. Specifically, an olfactory sensor that detects and analyzes chemical components of odors is being developed. 
     The olfactory sensor may collect information on substances constituting the odor, and identify the type, concentration, and characteristics of the odor through the information. That is, the olfactory sensor may identify odor like a human. Through this, it is possible to determine whether a substance harmful to the human body or food is spoiled. 
     In addition, when a person is exposed to a specific odor for a long time, the person becomes accustomed to the odor and has trouble smelling other odors. Accordingly, the olfactory sensor may replace the odor of a person who is easily fatigued. In addition, the olfactory sensor may accurately detect even a very small amount of odor substances that are difficult for humans to distinguish. 
     In this case, the olfactory sensor may be affected by temperature and humidity. In particular, when the concentration of odor particles or gas particles detected by the olfactory sensor is low, the temperature and humidity may be more affected. Accordingly, the olfactory sensor may require calibration according to changes in temperature and humidity. 
     In relation to the olfactory sensor considering the changes in temperature and humidity, the following prior document has been published. 
     1. Japanese Laid-Open Patent: JP2004-93241 (Published date: Nov. 6, 2003) 
     2. Title of invention: Gas sensor characteristic compensator and gas concentration measuring device 
     The prior document relates to an invention considering changes in temperature and humidity of a gas sensor, which is a type of olfactory sensor. In detail, the prior document disclosures a technique of arranging a humidity sensor and a temperature sensor in the vicinity of the gas sensor, and calibrating a value measured by the gas sensor using the humidity and temperature values obtained therefrom. 
     In this case, the prior document disclosures a gas sensor, a humidity sensor and a temperature sensor as separate devices. Accordingly, there is a problem in that the installation and maintenance of each sensor device need to be separately performed. In addition, there is a problem in that it is impossible to downsize and integrate the entire device. 
     In addition, the gas sensor, the humidity sensor, and the temperature sensor provided as separate devices are physically separated from each other. Accordingly, there is a problem in that the temperature and humidity values that affect the result value of the gas sensor cannot be accurately measured. 
     In detail, there is a possibility that the humidity and temperature of the gas sensor and the humidity and temperature of a space in which the humidity sensor and the temperature sensor are installed are different from each other. Accordingly, there is a problem in that it is difficult to obtain an accurate value even when a value measured by the gas sensor is calibrated based on humidity values and temperature values of different spaces. 
     DISCLOSURE 
     Technical Problem 
     The present disclosure has been proposed to solve this problem, and an object of the present disclosure is to a sensor assembly including an olfactory sensor, a humidity sensor and a temperature sensor in one installation space to output an olfactory value, a humidity value, and a temperature value together, and a control method therefor. 
     In particular, an object of the present disclosure is to provide a sensor assembly capable of calibrating and outputting an olfactory value using a humidity value and a temperature value installed in a same installation space to output a relatively accurate olfactory value, and a control method therefor. 
     Technical Solution 
     A sensor assembly according to the spirit of the present disclosure is configured as a single device in which an olfactory sensor, a humidity sensor, and a temperature sensor are arranged. 
     In particular, the olfactory sensor, the humidity sensor, and the temperature sensor may be respectively disposed at portions where a plurality of gate lines intersect with at least one detection line. That is, the olfactory sensor, the humidity sensor, and the temperature sensor may be arranged in a matrix form. 
     In detail, the sensor assembly according to the present disclosure may include a plurality of gate lines, at least one detection line extending to intersect with the plurality of gate lines, and a plurality of sensors respectively disposed at positions where the plurality of gate lines intersect with the at least one detection line. 
     In addition, the plurality of sensors may include an olfactory sensor provided with a sensing material whose resistance value changes according to an odor component, a temperature sensor provided with a sensing material whose resistance value changes according to a change in temperature, and a humidity sensor provided with a sensing material whose resistance value changes according to a change in humidity 
     In addition, the plurality of sensors may include a plurality of olfactory sensors and a single temperature sensor and a humidity sensor. 
     In addition, the plurality of sensors may include a plurality of olfactory sensors, a plurality of temperature sensors, and a plurality of humidity sensors. 
     On the other hand, a reaction value of the olfactory sensor, a reaction value of the temperature sensor, and a reaction value of the humidity sensor can be more easily obtained together through the control method for the sensor assembly according to the spirit of the present disclosure. 
     In addition, it is possible to obtain a more accurate olfactory value by calibrating the reaction value of the olfactory sensor using the reaction value of the temperature sensor and the reaction value of the humidity sensor. 
     In detail, in the control method for the sensor assembly according to the present disclosure, the [ 1 , 1 ] sensor to the [n, m] sensor disposed at portions where n gate lines (n is a natural number greater than 1) intersect with m detection lines (m is a natural number greater than 1) are included. 
     The sensing material included in at least one of the [ 1 , 1 ] sensor to the [n,m] sensor may react such that a resistance value is changed according to a change in temperature. 
     Further, the sensing material included in at least one of the [ 1 , 1 ] sensor to the [n,m] sensor may react such that a resistance value is changed according to a change in humidity. 
     Further, the sensing material included in at least one of the [ 1 , 1 ] sensor to the [n,m] sensor may react such that a resistance value is changed according to an odor component. 
     As a result, the temperature value, the humidity value, and the olfactory value may be output together through the reaction value. 
     In addition, the reaction value according to the resistance value changed according to the odor component is calibrated with the reaction value according to the resistance value changed according to the change in temperature and the reaction value according to the resistance value changed according to the change in humidity and output as the olfactory value. 
     Advantageous Effects 
     According to the embodiments of the present disclosure, there is an advantage that the olfactory sensor, the temperature sensor, and the humidity sensor can be controlled and managed through a single sensor assembly. 
     In addition, since the olfactory sensor, the temperature sensor, and the humidity sensor are respectively disposed at portions where a plurality of gate lines intersect with at least one detection line, there is an advantage in that a detected value can be obtained through relatively easy control. 
     In addition, there is an advantage in that a more accurate olfactory value can be obtained by calibrating a value detected by the olfactory sensor using the values detected by the temperature sensor and the humidity sensor. 
     In particular, since the olfactory sensor, the temperature sensor, and the humidity sensor are provided in one device and are physically located very closely, there is an advantage in that temperature and humidity can be calibrated more accurately. 
     In addition, since the temperature sensor and the humidity sensor are provided singly and rest sensors are all provided as olfactory sensors, there is an advantage that more accurate olfactory value can be derived through the greater number of olfactory sensors. 
     In addition, since the olfactory sensor, the temperature sensor, and the humidity sensor are all provided in plurality to derive an average value of the detected values, there is an advantage that a temperature value, a humidity value and an olfactory values can be obtained more accurately. 
    
    
     
       DESCRIPTION OF DRAWINGS 
         FIG. 1  is a view illustrating a refrigerator in which a sensor assembly is installed according to an embodiment of the present disclosure. 
         FIG. 2  is a diagram schematically illustrating a main configuration of a sensor assembly according to an embodiment of the present disclosure. 
         FIG. 3  is a diagram illustrating a minimum unit of a sensor assembly according to an embodiment of the present disclosure. 
         FIGS. 4 and 5  are diagrams illustrating a sensor assembly according to an embodiment of the present disclosure. 
         FIG. 6  is a diagram illustrating a control flow of a sensor assembly according to an embodiment of the present disclosure. 
         FIG. 7  is a diagram illustrating an output value of a sensor assembly according to an embodiment of the present disclosure. 
         FIG. 8  is a diagram illustrating a sensor arrangement of a sensor assembly according to a first embodiment of the present disclosure. 
         FIG. 9  is a diagram illustrating a sensor arrangement of a sensor assembly according to a second embodiment of the present disclosure. 
         FIG. 10  is a diagram illustrating a sensor arrangement of a sensor assembly according to a third embodiment of the present disclosure. 
     
    
    
     MODE FOR INVENTION 
     Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the exemplary drawings. In adding the reference numerals to the components of each drawing, it should be noted that the identical or equivalent component is designated by the identical numeral even when they are displayed on other drawings. Further, in describing the embodiment of the present disclosure, a detailed description of well-known features or functions will be ruled out in order not to unnecessarily obscure the gist of the present disclosure. 
     In describing the components of the embodiment according to the present disclosure, terms such as first, second, “A”, “B”, (a), (b), and the like may be used. These terms are merely intended to distinguish one component from another component, and the terms do not limit the nature, sequence or order of the constituent components. It should be noted that if it is described in the specification that one component is “connected,” “coupled” or “joined” to another component, the former may be directly “connected,” “coupled,” and “joined” to the latter or “connected”, “coupled”, and “joined” to the latter via another component. 
       FIG. 1  is a view illustrating a refrigerator in which a sensor assembly is installed according to an embodiment of the present disclosure. 
     As shown in  FIG. 1 , a sensor assembly  10  according to the spirit of the present disclosure may be installed in a refrigerator  1 . 
     &lt;Installation Example: Refrigerator&gt; 
     The refrigerator  1  may include a cabinet  2  forming an outer shape and refrigerator doors  3  and  4  movably connected to the cabinet  2 . 
     A storage compartment in which food is stored may be formed inside the cabinet  2 . The storage compartment may include a refrigerating compartment  5  and a freezing compartment located below the refrigerating compartment  5 . In general, the freezing compartment may be maintained at a lower temperature than that of the refrigerating compartment  5 . 
     That is, the refrigerator  1  illustrated in  FIG. 1  may correspond to a bottom freezer type refrigerator in which a refrigerating compartment is disposed above a freezing compartment. This is an example, and the refrigerator  1  may be provided as a top mount type refrigerator in which a freezing compartment is disposed above a refrigerating compartment, a side by side type refrigerator in which a freezing compartment and a refrigerating compartment are partitioned into left and right sides by a partition wall, or the like. 
     The refrigerator doors may include a refrigerating compartment door  3  for opening and closing the refrigerating compartment  5  and a freezing compartment door  4  for opening and closing the freezing compartment. Each of the refrigerator compartment door  3  and the freezing compartment door  4  may include a plurality of doors arranged left and right. 
     Also, the refrigerating compartment door  3  and the freezing compartment door  4  may be rotatably coupled to the cabinet  2 . This is exemplary, and the refrigerating compartment door  3  and the freezing compartment door  4  may be coupled to the cabinet  2  in various shapes and numbers. 
     In this case, the sensor assembly  10  may be disposed on one side of the refrigerating compartment  5 . In detail, the sensor assembly  10  may be installed in an inner wall forming the refrigerating compartment  5 . Accordingly, the sensor assembly  10  may output a physical value corresponding to the interior of the refrigerating compartment  5 . 
     In particular, the sensor assembly  10  according to the spirit of the present disclosure may output a temperature value, a humidity value, and an olfactory value. In this case, the temperature value, the humidity value, and the olfactory value may mean a physical quantity for temperature, a physical quantity for humidity, and a physical quantity for smell, respectively. 
     For example, the sensor assembly  10  may measure a temperature value, a humidity value, and an olfactory value corresponding to the interior of the refrigerating compartment. In this case, the olfactory value may correspond to a specific smell generated inside the refrigerating compartment  5 . 
     For example, the sensor assembly  10  may determine the smell of spoiled food. That is, the sensor assembly  10  may detect that food stored in the refrigerating compartment  5  is spoiled. Through such information, a user may store and manage food in the refrigerator  1  more conveniently. 
     In this case, the arrangement of the sensor assembly  10  as shown in  FIG. 1  is merely exemplary. That is, the sensor assembly  10  may be installed in any place to measure a temperature value, a humidity value, and an olfactory value. 
     Hereinafter, a configuration of the sensor assembly  10  will be described in detail. 
       FIG. 2  is a diagram schematically illustrating a main configuration of a sensor assembly according to an embodiment of the present disclosure. 
     As shown in  FIG. 2 , the sensor assembly  10  may include a sensing device  11 , a controller  20 , and a detector  30 . 
     The sensing device  11  may be configured to sense a predetermined temperature, humidity, and smell. In detail, the sensing device  11  may have a configuration in which a sensing material having a resistance value that changes according to a predetermined temperature, humidity, and smell is disposed. 
     The controller  20  may control the operation of the sensing device  11 . In particular, the controller  20  may be provided to control the operation of at least a part of the sensing device  11 . Accordingly, the controller  20  may determine a sensing timing by the the sensing device  11 . 
     Also, the controller  20  may be connected to a predetermined power supply  60 . The power supply  60  may transmit the sensing timing by the sensing device  11  to the controller  20 . For example, the power supply  60  may be a device which may be operated by a user. Accordingly, the controller  20  may control the operation of the sensing device  11  according to the user&#39;s request. 
     The detector  30  may be configured to detect information on smell detected by the sensing device  11 . In detail, the detector  30  may be a circuit that measures a change in the resistance value transmitted from the sensing device  11 . In addition, the detector  30  may transmit the detected information to the controller  20 . 
     Also, the controller  20  may directly or indirectly analyze the information transmitted from the detector  30 . For example, the controller  20  may transmit the information transmitted from the detector  30  to an external device through a communication device  50 . In this case, the external device may be a mobile device used by the user or a home network. 
     In summary, the sensing device  11  may be operated by the controller  20 , and the detector  30  may detect predetermined information from the sensing device  11 . Then, the controller  20  may receive the predetermined information from the detector  30 . 
     The configuration of the sensor assembly  10  is exemplary, and some components may be omitted or added. In particular, essential components in the sensor assembly  10  according to the spirit of the present disclosure may be the sensing device  11 , the controller  20 , and the detector  30 . 
     Hereinafter, the configuration of the sensing device  11  and the connection relationship between the sensing device  11 , the controller  20  and the detector  30  will be described in detail. 
       FIG. 3  is a diagram illustrating a minimum unit of a sensor assembly according to an embodiment of the present disclosure. 
     As shown in  FIG. 3 , the sensing device  11  may include a plurality of sensors  100 . 
     The sensor  10  may include a sensing material  500 . The sensing material  500  may be understood as having a configuration in which a resistance value changes according to temperature, humidity, and smell. For example, the sensing material  500  may be an inorganic material, an organic material, or a composite material of an inorganic material and an organic material. For example, the organic material may be a conductive polymer or an organic semiconductor. In addition, the inorganic material may be a metal oxide semiconductor, a compound semiconductor, or a semiconductor made of a single chemical element. That is, the sensing material  500  may include various types of materials. 
     Further, one sensor  100  may include one sensing material  500 . That is, the sensing device  11  may include a plurality of sensing materials  500  corresponding to the number of the sensors  100 . Referring to  FIG. 3 , three sensors  100  and three sensing materials  500  respectively included in the three sensors  100  are shown. 
     In this case, when the sensing material  500  is a material whose resistance value changes according to a change in temperature, the sensor  100  in which the sensing material  500  is installed may be understood as a temperature sensor. In addition, when the sensing material  500  is a material whose resistance value changes according to a change in humidity, the sensor  100  in which the sensing material  500  is installed may be understood as a humidity sensor. In addition, when the sensing material  500  is a material whose resistance value changes according to an odor component, the sensor  100  in which the sensing material  500  is installed may correspond to an olfactory sensor. 
     The sensor assembly  10  according to the spirit of the present disclosure may include a temperature sensor, a humidity sensor, and an olfactory sensor. That is, the plurality of sensors  100  may include a temperature sensor, a humidity sensor, and an olfactory sensor. Accordingly, the three sensors  100  shown in  FIG. 3  may correspond to a temperature sensor, a humidity sensor, and an olfactory sensor, respectively. 
     In addition, the sensor  100  may include a sensing material power supply (VDD, Voltage Drain Drain) ( 502 ) for supplying power to the sensing material  500 . 
     In addition, the sensing device  11  may include a gate line  200  connected to the controller  20 . In addition, the sensing device  11  includes a detection line  300  connected to the detector  30 . The sensor  100  is connected to the gate line  200  and the detection line  300 . 
     In this case, the sensor  100  may include a transistor  600 . The transistor  600  may correspond to a component for switching the connection between the sensing material  500  and the detection line  300 . In particular, the transistor  600  may be a thin film transistor (TFT). 
     In addition, the transistor  600  may be controlled by the controller  20 . In detail, the controller  20  transmits a predetermined control signal to the transistor  600  through the gate line  200 . In addition, the transistor  600  connects the detection line  300  and the sensing material  500  according to a corresponding control signal. 
     In this case, the controller  20  includes a shift register (not shown) that sequentially transmits control signals to the gate lines  200 . That is, the controller  20  may sequentially transmit control signals to the plurality of gate lines  200 . In this case, the number and order of the gate lines  200  to which the controller  20  sequentially transmits control signals may be predetermined. 
     In summary, the sensing device  11  may include the sensor  100 , the gate line  200 , and the detection line  300 . Also, the sensor  100  may be installed at a portion where the gate line  200  and the detection line  300  intersect so as to be connected to both the gate line  200  and the detection line  300 . 
     In addition, as described above, the sensing device  11  may be provided with the plurality of sensors  100 . Accordingly, at least one of the gate line  200  and the detection line  300  may be provided in plurality. 
     Referring to  FIG. 3 , in order to install three sensors  100 , three or more intersections between the gate line  200  and the detection line  300  needs to be provided. Accordingly, three gate lines  200  may be provided so that the three sensors  100  may be installed. 
     In addition, the sensor assembly  10  may include a transmission line  400  connecting the controller  20  and the detector  30 . Data detected by the detector  30  may be transmitted through the transmission line  400 . 
       FIG. 3  shows an example in which the sensing device  11  is designed in a minimum unit. In detail, a structure in which a single temperature sensor, a single humidity sensor, and a single olfactory sensor are provided is shown. This is only an example of the sensing device  11  and the sensing device  11  is not limited thereto. Hereinafter, the configuration of the sensing device  11  will be described in detail. 
       FIGS. 4 and 5  are diagrams illustrating a sensor assembly according to an embodiment of the present disclosure.  FIGS. 4 and 5  are schematic diagrams for convenience of understanding, and may be different from an actual sensor assembly. 
     In detail,  FIG. 4  shows a general sensor assembly in the form of a circuit corresponding to  FIG. 3 .  FIG. 5  schematically shows a sensor and a sensing material in  FIG. 4 . 
     As shown in  FIG. 4 , the sensing device  11  may include n gate lines  200  and m detection lines  300 . In this case, n is a natural number greater than 1, and m is a natural number greater than or equal to 1. Although n and m are illustrated as being 3 or more in  FIGS. 4 and 5 , this is illustrated for convenience of description and is not limited thereto. 
     Hereinafter, the n gate lines  200  are expressed as a first gate line  210  and a second gate line  220  to an n-th gate line  290 . In this case, the first gate line  210  may be understood as a gate line that first receives a signal from the controller  20 . Also, the second gate line  220  may be understood as a gate line that receives a signal subsequently to the first gate line  210 . 
     That is, the first gate line  210 , the second gate line  220  to the n-th gate line  290  may be understood as the order in which signals are received from the controller  20 . Also, for convenience of understanding, the first gate line  210  and the second gate line  220  to the n-th gate line  290  are sequentially illustrated. 
     In addition, the m detection lines  300  are expressed as a first detection line  310 , and a second detection line  320  to an m-th detection line  390 . In addition, the first detection line  310 , and the second detection line  320  to the m-th detection line  390  may be individually connected to the detector  30 . 
     The detector  30  may include a plurality of detection circuits. The detection circuit may be understood as a circuit for detecting a value that is changed according to the resistance value of the sensing material  500 . 
     In detail, the detection circuit may include a detection resistor and a converter (A/D Converter, ADC). A voltage value Vadc may be changed according to the resistance value of the sensing material  500 , and the changed value may be detected by the converter. That is, data according to temperature, humidity, and smell sensed by the sensing material  500  may be output. 
     In this case, the detector  30  may include a number of detection circuits corresponding to the number of detection lines  300 . In other words, one detection circuit may be installed in one detection line  300 . That is, the detector  30  may include m detection circuits corresponding to the m detection lines  300 . 
     Accordingly, the plurality of detection circuits may be divided into a first detection circuit  31  and a second detection circuit  32  to an m-th detection circuit  39 . And, as shown in  FIG. 4 , each detection line  300  and each detection circuit may be connected to each other in correspondence with each other. That is, the first detection line  310  may be connected to the first detection circuit  31 , and the second detection line  320  may be connected to the second detection circuit  32 . 
     In addition, the first detection circuit  31 , and the second detection circuit  32  to the m-th detection circuit  39  may be connected to the transmission line  400 . That is, data detected by the first detection circuit  31 , and the second detection circuit  32  to the m-th detection circuit  39  may be transmitted to the controller  20 . 
     As described above, the sensor  100  may be connected to the gate line  200  and the detection line  300 . In other words, the sensor  100  may be arranged at a point where the gate line  200  and the detection line  300  intersect with each other. 
     As shown in  FIG. 4 , the n gate lines  200  extends in the horizontal direction and are arranged to be spaced apart from each other in a vertical direction. In addition, the m detection lines  300  extend in the vertical direction and are arranged to be spaced apart from each other in a horizontal direction. As a result, the gate line  200  may form a row and the detection line  300  may form a column, so that a kind of matrix structure may be formed. 
     In detail, the first detection line  310  to the m-th detection line  390  may be sequentially arranged on the first gate line  210  in the horizontal direction. In addition, the second gate line  220  to the n-th gate line  290  may be sequentially arranged in the vertical direction to intersect with the first detection line  310  to the m-th detection line  390 . 
     As shown in  FIGS. 4 and 5 , the sensors  100  may be arranged at points where the first gate line  210  to the n-th gate line  290  intersect with and the first detection line  310  to the m-th detection line. As a result, the sensors  100  may be arranged in the horizontal direction and the vertical direction. 
     Accordingly, n*m sensors  100  may be installed in the sensing device  11 . In this case, each sensor is named according to the numbers of the gate line and the detection line to which the sensor is to be coupled. For example, a sensor coupled to the first gate line  210  and the first detection line  310  is referred to as a [1,1] sensor  111 . In addition, a sensor coupled to the n-th gate line  290  and the m-th detection line  390  is referred to as a [n,m] sensor  199 . 
     Accordingly, it may be understood that the [1,1] sensor  111  and the [1,2] sensor  112  to the [ 1 ,m] sensor  119  are sequentially arranged on the first gate line  210 . In addition, it may be understood that the [1,1] sensor  111  and the [2,1] sensor  121  to the [n,1] sensor  191  are sequentially arranged on the first detection line  310 . 
     However, according to the arrangement of the sensors, more than n*m sensors may be installed in the sensing device  111 . For example, a pair of sensors connected to different gate lines may be arranged to be connected to one detection line. Accordingly, n*m*2 sensors may be installed in the sensing device  11 . 
     Hereinafter, for convenience of description, a case in which a number of sensors are provided which corresponds to the number of the gate lines and the number of the detection lines will be described. That is, a case in which n gate lines, m detection lines, and n*m sensors are provided will be described. 
     In addition, as described above, one sensor  100  may include one sensing material  500 . That is, the sensing device  11  may include the same number of sensors  100  and sensing materials  500 . 
     In this case, the sensing material is named so as to correspond to each sensor. For example, the sensing material provided in the [1,1] sensor  111  is referred to as a [1,1] sensing material  511 . In addition, the sensing material provided in the [n,n] sensor  199  is referred to as a [n,m] sensing material  599 . 
     Hereinafter, the operation of the sensor assembly  10  will be described. 
       FIG. 6  is a diagram illustrating a control flow of a sensor assembly according to an embodiment of the present disclosure. The operation described in  FIG. 6  through the sensor assembly  10  shown in  FIGS. 4 and 5  will be described. 
     As shown in  FIG. 6 , when the sensor assembly  10  starts to operate, A may be set to 1 (S 10 ). In this case, “A” may be understood as an arbitrary number for distinguishing the gate lines  200 . As described above, since the number of gate lines  200  is n, A may be a natural number selected from 1 to n. 
     Then, the A-th gate line is turned on (S 20 ). In this case, the fact that the A-th gate line is turned on may be understood as a sensor located in the A-th gate line being operated. 
     In detail, the controller  20  may transmit a control signal through the A-th gate line. That is, the control signal is transmitted to the sensor located on the A-th gate line. In this case, it can be seen that the sensor located on the A-th gate line corresponds to the [A,1] sensor to the [A,m] sensor. 
     Then, a transistor  600  provided in the [A,1] sensor to the [A,m] sensor may be operated. That is, the sensing materials  500  provided in the [A,1] sensor to the [A,m] sensor may react to generate a predetermined output value. 
     Since A is set to 1 when the sensor assembly  10  starts to operate, it may be understood that the first gate line  210  is turned on. 
     Accordingly, the controller  20  may transmit a control signal through the first gate line  210 . Then, the control signal may be transmitted to the [1,1] sensor  111  and the [1, 2] sensor  112  to the [1,m] sensor  119  located on the first gate line  210 . 
     Then, the reaction of the [1,1] sensor  111  to the [1,m] sensor  119  may be detected (S 30 ). In detail, the reactions of the [1,1] sensing material  511 , the [1,2] sensing material  512  to the [1,m] sensing material  519  may be detected. 
     In detail, the output values generated by the [A,1] sensor to the [A,m] sensor may be transmitted to the first detection circuit  31  to the m-th detection circuit along the first detection line  310  to the m-th detection line  390 . In addition, the first detection circuit  31  to the m-th detection circuit  39  may detect output values generated by the [A,1] sensor to the [A,m] sensor, respectively. 
     Accordingly, the output values generated by the [1,1] sensor  111  to the [1,m] sensor  119  may be generated by the first detection circuit  31  to the m-th detection circuit  39  along the first detection line  310  to the m-th detection line  390 . In addition, the first detection circuit  31  to the m-th detection circuit  39  may detect output values generated by the [1,1] sensor  111  to the [1,m] sensor  119 , respectively. 
     Then, the A-th gate line may be turned OFF (S 40 ). In this case, the fact that the A-th gate line is turned OFF may be understood as operation of the sensor located on the A-th gate line being suspended. That is, the output values generated by the [A,1] sensor to the [A,m] sensor are not transmitted to the first detection line  310  to the m-th detection line  390 . 
     Accordingly, the first gate line  210  may be turned off. Accordingly, the operation of the [1,1] sensor  111  to the [1,m] sensor  119  may be suspended. That is, the output values of the [1,1] sensor  111  to the [1,m] sensor  119  are not transmitted to the first detection line  310  to the m-th detection line  390 . 
     Then, A+1 may be set to A (S 50 ). That is, after obtaining an output value of one gate line, A may be changed to obtain an output value of the next gate line. 
     Then, it is determined whether A is greater than n (S 60 ). As described above, since A corresponds to one of 1 to n, there is no case where A is greater than n. In other words, since gate lines exist up to the n-th gate line, when A is greater than n, a corresponding gate line no longer exists. 
     Accordingly, A, which was set to 1, is set to 2, which is a value of 1+1. Further, since n corresponds to a natural number greater than 1, 2 cannot be a number greater than n. Accordingly, as shown in  FIG. 6 , the second gate line  220  is turned on. 
     Accordingly, the controller  20  may transmit a control signal through the second gate line  220 . Then, the control signal may be transmitted to the [2,1] sensor  121  and the [2, 2] sensor  122  to the [2,m] sensor  129  located on the second gate line  220 . Further, the [2,1] sensing material  521 , and the [2,2] sensing material  522  to the [2,m] sensing material  529  may react. 
     Accordingly, the output values generated by the [2,1] sensor  121  to the [2,m] sensor  129  may be generated by the first detection circuit  310  to the m-th detection circuit  390  along the first detection line  310  to the m-th detection line  390 . In addition, the first detection circuit  31  to the m-th detection circuit  39  may detect output values generated by the [2,1] sensor  121  to the [2,m] sensor  129 , respectively. 
     Then, the second gate line  220  is turned OFF. Accordingly, the operation of the [2,1] sensor  121  to the [2,m] sensor  129  may be suspended. 
     Then, A+1 is set to A again, and it is determined whether A is greater than n. Therefore, A, which was set to 2, is set to 3, which is a value of 2+1. For example, a case where n is 2 corresponds to a case where two gate lines  200  are provided. That is, only the first gate line  210  and the second gate line  220  exist, and the first gate line  210  and the second gate line  220  have been turned ON/OFF. 
     Therefore, there is no longer a gate line capable of being turned ON/OFF. 
     That is, when A is a value greater than n, it is determined that all gate lines  200  have been turned ON/OFF. In this case, the fact that all gate lines  200  have been turned ON/OFF may mean that the output values of the sensors  100  positioned on a corresponding gate line  200  are detected. 
     That is, the first gate line  210  is turned ON/OFF, and output values of the [1,1] sensors  111  to [1,m] sensors  119  are detected. Then, the second gate line  220  is turned ON/OFF, and output values of the [2,1] sensors  121  to [1,m] sensors  129  are detected. 
     As described above, the first gate line  210  to the n-th gate line  290  are subsequently turned ON/OFF, and output values of the [1,1] sensor  111  to the [n,m] sensor  199  are detected. 
     Accordingly, when “A” is a value greater than n, it means that the output values of the sensors  100  positioned on all the gate lines  200  are detected. That is, when “A” is a value greater than n, it means that the output values of all of the sensors  100  are detected. 
     Then, data may be transmitted to the controller  20  (S 70 ). In detail, the data detected by the detector  30  may be transmitted to the controller  20  through a transmission line  400 . 
     In this case, such data transmission may be performed immediately after detection of one gate line is completed. That is, the detected values of the [1,1] sensor  111  to the [1,m] sensor  119  may be transmitted to the controller  20  at the same time as the first gate line  210  is turned off. 
     Accordingly, the controller  20  may receive the detected values of all the sensors  100  disposed in the sensing device  11 . In addition, a temperature value, a humidity value, and an olfactory value may be obtained through the detected values. In this case, the olfactory value may be calibrated by a temperature value and a humidity value. 
     Hereinafter, an output value derived from the sensor assembly  10  will be described. 
       FIG. 7  is a diagram illustrating an output value of a sensor assembly according to an embodiment of the present disclosure. 
     As shown in  FIG. 7 , the sensor assembly  10  may include an olfactory sensor  100   a , a temperature sensor  100   b , and a humidity sensor  100   c . As described above, the olfactory sensor  100   a , the temperature sensor  100   b , and the humidity sensor  100   c  may be provided with sensing materials  500  for sensing a smell, a temperature and a humidity, respectively. 
     Further, according to the process shown in  FIG. 6 , the values detected by the olfactory sensor  100   a , the temperature sensor  100   b , and the humidity sensor  100   c  are detected by the detector  30  and sent to the controller  20 . 
     Then, the controller  20  may output a temperature value (B) according to a value sensed by the temperature sensor  100   b . Also, the controller  20  may output a humidity value (C) according to a value detected by the humidity sensor  100   c . In this case, being output may mean transmitting or displaying a corresponding value to a user or a server. 
     For example, when the sensor assembly  10  is installed in the refrigerator  1 , the detected temperature value (B) and the detected humidity value (C) may be displayed on a display provided in the refrigerator  1 . 
     In this case, the sensor assembly  10  according to the spirit of the present disclosure may calibrate a value detected by the olfactory sensor  100   a  with values detected by the temperature sensor  100   b  and the humidity sensor  100   c . In fact, the values detected by the temperature sensor  100   b  and the humidity sensor  100   c  may also be calibrated according to a predetermined condition, but this will not be described. 
     The sensor assembly  10  may further include a data unit  40 . The data unit  40  may be a component included in the controller  20 . The data unit  40  may store data on a change in olfactory value according to a temperature and a humidity. 
     Accordingly, the controller  20  may calibrate the value detected by the olfactory sensor  100   a  with the data stored in the data unit  40  and the values detected by the temperature sensor  100   b  and the humidity sensor  100   c . That is, the controller  20  may perform temperature calibration (S 80 ) and humidity calibration (S 90 ) on the value detected by the olfactory sensor  100   a.    
     In this case, the temperature calibration (S 80 ) and the humidity calibration (S 90 ) may be performed simultaneously or sequentially. Accordingly, although it is illustrated in  FIG. 7  that the temperature calibration (S 80 ) is performed first and the humidity calibration (S 90 ) is performed, the order is not limited thereto. 
     Specifically, the controller  20  may derive a calibration value by substituting the value detected by the temperature sensor  100   b  in the data on a change in olfactory value for a change in temperature stored in the data unit  40 . Then, a value detected by the olfactory sensor  100   a  is calibrated with a calibration value derived from the corresponding data. 
     As a result, the value detected by the olfactory sensor  100   a  is subjected to temperature calibration with the value detected by the temperature sensor  100   b  (S 80 ). 
     Further, the controller  20  may derive a calibration value by substituting the value detected by the humidity sensor  100   c  in the data on a change in olfactory value for a change in humidity stored in the data unit  40 . Then, a value detected by the olfactory sensor  100   a  is calibrated with a calibration value derived from the corresponding data. 
     As a result, the value detected by the olfactory sensor  100   a  is subjected to humidity calibration with the value detected by the humidity sensor  100   c  (S 90 ). 
     As described above, the value detected by the olfactory sensor  100   a  is output as the olfactory value (A) through the temperature calibration (S 80 ) and the humidity calibration (S 90 ). 
     In summary, the sensor assembly  10  may integrally output an olfactory value (A), a temperature value (B), and a humidity value (C). In this case, the olfactory value (A) may correspond to a value calibrated by the temperature value (B) and the humidity value (C). 
     Hereinafter, various examples of the type and arrangement of the sensing materials  500  provided in the sensor  100  will be described. In addition, an analysis method through a value detected according to the type and arrangement of the sensing materials  500  will be described. 
       FIGS. 8 to 10  are views illustrating a sensor arrangement of a sensor assembly according to an embodiment of the present disclosure.  FIGS. 8 to 10  show 16 sensors and 16 sensing materials provided in the sensors. For convenience of description, the number of sensors or sensing materials corresponds to a number set by way of example, and the present disclosure is not limited thereto. 
     First Embodiment; Multiple Olfactory Sensors, Single Temperature and Single Humidity Sensor 
     As shown in  FIG. 8 , a sensor assembly  10   a  may include a plurality of sensors  100 , and a sensing material  500  may be provided in each of the plurality of sensors  100 . In this case, the plurality of sensors  100  may include a plurality of olfactory sensors  100   a , a single temperature sensor  100   b , and a single humidity sensor  100   c.    
     That is, the sensor assembly  10   a  may include one temperature sensor  100   b  and one humidity sensor  100   c . The remaining sensors all correspond to the olfactory sensors  100   a.    
     It can be understood that the temperature sensor  100   b  and the humidity sensor  100   c  are installed for the temperature calibration (S 80 ) and the humidity calibration (S 90 ). In addition, since the single temperature sensor  100   b  and the single humidity sensor  100   c  respectively output a relatively accurate temperature value B and a relatively accurate humidity value C, a large number of sensors may not be required. 
     Referring to  FIG. 8 , a [1,1] sensor  711  to a [4,4] sensor  744  are included in the sensor assembly  10   a . In addition, the [1,1] sensor  711  to the [4,4] sensor  744  may include one temperature sensor  100   b  and one humidity sensor  100   c . That is, the sensor assembly  10   a  may include 14 olfactory sensors  100   a.    
     Further, the [1,1] sensor  711  to the [4,4] sensor  744  may include a[1,1] sensing material  811  to a [4,4] sensing material  844 , respectively. In this case, for convenience of understanding, the sensing material for detecting a change in resistance value due to humidity is indicated by a triangle, and the sensing material for detecting a change in resistance value due to temperature is indicated by a square. In addition, the sensing material for detecting a change in resistance value according to smell is indicated by a circle. 
     However, all of the sensing materials shown in  FIG. 5  are indicated by circles, but it can be understood that the sensing materials are displayed without distinguishing sensing materials. That is, the sensing materials shown in  FIG. 5  does not include only sensing materials for detecting a change in resistance value according to smell. 
     Accordingly, the [1, 4] sensing material  814  may be a sensing material for detecting a change in resistance value according to humidity. Further, the [4,1] sensing material  841  may be a sensing material for detecting a change in resistance value according to temperature. That is, the [1,4] sensor  714  may correspond to the humidity sensor, and the [4,1] sensor  741  may correspond to the temperature sensor. 
     In addition, the remaining sensing materials may be sensing materials for detecting a change in resistance value according to smell. That is, the [1,1] sensor  711  to [4,4] sensor  744  except for the [1,4] sensor  714  and the [4,1] sensor  741  may correspond to an olfactory sensor. 
     In this case, the arrangement of the humidity sensor and the temperature sensor is merely exemplary. That is, the humidity sensor and the temperature sensor may be arranged at different positions. 
     Referring to  FIG. 6 , first, the output values of the [1,1] sensor  711 , the [1,2] sensor  712 , the [1,3] sensor  713  and the [1,4] sensor  714  are detected. Then, the output values of the [2,1] sensor  721 , the [2,2] sensor  722 , the [2,3] sensor  723  and the [2,4] sensor  724  are detected. Then, the output values of the [3,1] sensor  731 , the [3,2] sensor  732 , the [3,3] sensor  733  and the [3,4] sensor  734  are detected. 
     Finally, the output values of the [4,1] sensor  741 , the [4,2] sensor  742 , the [4,3] sensor  743  and the [4,4] sensor  744  are detected. Then, data corresponding to the output values of the [1,1] sensor  711  to the [4,4] sensor  744  is transmitted to the controller  20 . 
     The controller  20  may output the output value of the [1,4] sensor  714  as a humidity value (C). In addition, the controller  20  may output the output value of the [4,1] sensor  741  as a temperature value (B). 
     Then, the controller  20  may calibrate the output values of the [1,1] sensor  711  to the [4,4] sensor  744  except for the [1,4] sensor  714  and the [4,1] sensor  741 , using the output values of the [1,4] sensor  714  and the [4,1] sensor  741 . The calibrated value may be output as the olfactory value (A). 
     As described above, the sensor assembly  10   a  may output the olfactory value (A), the temperature value (B), and the humidity value (C). In particular, it is possible to install a larger number of olfactory sensors  100   a  by providing a single temperature sensor  100   b  and a single humidity sensor  100   c . Accordingly, the sensor assembly  10   a  may derive an olfactory value with higher measurement and analysis precision. 
     Second Embodiment; Multiple Olfactory Sensors, Multiple Temperature Sensors and Multiple Humidity Sensors 
     As shown in  FIG. 9 , a sensor assembly  10   b  may include a plurality of sensors  100 , and each of the plurality of sensors  100  may include a sensing material  500 . In this case, the plurality of sensors  100  may include a plurality of olfactory sensors  100   a , a plurality of single temperature sensor  100   b , and a plurality of single humidity sensor  100   c.    
     In addition, at least one of the temperature sensor  100   b  and the humidity sensor  100   c  may be provided in plurality. That is, both the temperature sensor  100   b  and the humidity sensor  100   c  may be provided in plurality. Alternatively, the temperature sensor  100   b  may be provided in plurality, and the humidity sensor  100   c  may be provided singly. In addition, the humidity sensor  100   c  may be provided in plurality, and the temperature sensor  100   b  may be provided singly. 
     The temperature sensor  100   b  or the humidity sensor  100   c  may be provided in plurality to more accurately measure the temperature value (B) and the humidity value (C). In particular, when the sensor assembly  10   b  includes a relatively large number of sensors  100 , the temperature sensor  100   b  or the humidity sensor  100   c  may be provided in plurality. 
     In this case, the number of the temperature sensors  100   b  and the number of the humidity sensors  100   c  may be smaller than the number of the olfactory sensor  100   a . That is, the sensor assembly  10   b  may include a greater number of the olfactory sensors  100   a  than the number of the temperature sensors  100   b  and the humidity sensors  100   c.    
     In addition, the number of the temperature sensors  100   b  and the number of the humidity sensors  100   c  may be set differently according to the needs of the sensor assembly  10   b . For example, when the sensor assembly  10   b  is installed in a place where there is a large change in temperature, a larger number of temperature sensors  100   b  may be provided in the sensor assembly  10   b.    
       FIG. 9  illustrates a case in which a plurality of temperature sensors  100   b  and a plurality of humidity sensors  100   c  are provided in the sensor assembly  10   b . In addition, a case where the number of the humidity sensors  100   c  is greater than the number of the temperature sensors  100   b  is illustrated. However, this is exemplary and not limited thereto. 
     Referring to  FIG. 9 , the sensor assembly  10   b  may include a [1,1] sensor  911  to a [4,4] sensor  944 . In addition, the [1,1] sensor  911  to the [4,4] sensor  944  may include a plurality of temperature sensors  100   b , a plurality of humidity sensors  100   c , and a plurality of olfactory sensors  100   a . That is, the sensor assembly  10   a  may include two or more temperature sensors  100   b , two or more humidity sensors  100   c , and two or more olfactory sensors  100   a.    
     Further, the [1,1] sensor  911  to the [4,4] sensor  944  may include a [1,1] sensing material  1011  to a [4,4] sensing material  1044 , respectively. In this case, for convenience of understanding, the sensing material for detecting a change in resistance value due to humidity is indicated by a triangle, and the sensing material for detecting a change in resistance value due to temperature is indicated by a square. In addition, the sensing material for detecting a change in resistance value according to smell is indicated by a circle. 
     Accordingly, the [1,4] sensing material  1014 , the [2,3] sensing material  1023 , and the [4, 1] sensing material  1041  may be a sensing material for detecting a change in resistance value according to humidity. That is, the [1,4] sensor  914 , the [2,3] sensor  923 , and the [4,1] sensor  941  may correspond to the humidity sensor. Consequently, the sensor assembly  10   b  may include three humidity sensors. 
     Further, the [2,2] sensing material  1022  and the [3,4] sensing material  1034  may be a sensing material for detecting a change in resistance value according to temperature. That is, the [2,2] sensor  922  and the [3,4] sensor  934  may correspond to a temperature sensor. Consequently, the sensor assembly  10   b  may include two temperature sensors. 
     In addition, the remaining sensing materials may be sensing materials for detecting a change in resistance value according to smell. That is, the [1,1] sensor  911  to the [4,4] sensor  944  except for the [1,4] sensor  914 , the [2,3] sensor  923 , the [4,1] sensor  941 , the [2,2] sensor  922 , and the [3,4] sensor  934  may correspond to olfactory sensors. 
     Referring to  FIG. 6 , first, output values of the [1,1] sensor  911 , the [1,2] sensor  912 , the [1,3] sensor  913  and the [1,4] sensor  914  are detected. Then, the output values of the [2,1] sensor  921 , the [2,2] sensor  922 , the [2,3] sensor  923  and the [2,4] sensor  924  are detected. Then, the output values of the [3,1] sensor  931 , the [3,2] sensor  932 , the [3,3] sensor  933  and the [3,4] sensor  934  are detected. 
     Finally, the output values of the [4,1] sensor  941 , the [4,2] sensor  942 , the [4,3] sensor  943  and the [4,4] sensor  944  are detected. Then, data corresponding to the output values of the [1,1] sensor  911  to the [4,4] sensor  944  is transmitted to the controller  20 . 
     The controller  20  may output the humidity value (C) through the output values of the [1,4] sensor  914 , the [2,3] sensor  923  and the [4,1] sensor  941 . For example, the controller  20  may calculate an average value of the output values of the [1,4] sensor  914 , the [2,3] sensor  923  and the [4,1] sensor  941  to yield the humidity value (C). 
     Also, the controller  20  may output the temperature value (B) through the output values of the [2,2] sensor  922  and the [3,4] sensor  934 . For example, the controller  20  may output an average value of the output values of the [2,2] sensor  922  and the [3,4] sensor  934  as the temperature value (B). 
     Further, the controller  20  may calibrate output values of the [1,1] sensor  911  to the [4,4] sensor  944  except for the [1,4] sensor  914 , the [2,3] sensor  923 , the [4,1] sensor  941 , the [2,2] sensor  922  and the [3,4] sensor  934 . Then, the calibrated value may be output as the olfactory value (A). 
     For example, the humidity calibration S 90  may be performed through the average value of the output values of the [1,4] sensor  914 , the [2,3] sensor  923 , and the [4,1] sensor  941 . Also, the temperature calibration S 80  may be performed through the average value of the output values of the [2,2] sensor  922  and the [3,4] sensor  934 . 
     In this way, the sensor assembly  10   b  may output the olfactory value (A), the temperature value (B), and the humidity value (C). In particular, it is possible to output a more accurate temperature value (B) and a more accurate humidity value (B) by providing a plurality of temperature sensors  100   b  and a plurality of humidity sensors  100   c . Accordingly, it is possible to output the olfactory value (A) calibrated more accurately. 
     That is, the sensor assembly  10   b  may output the more accurate olfactory value (A), the more accurate temperature values (B), and the more accurate humidity values (C). 
     Third Embodiment; Different Types of Olfactory Sensors, Temperature Sensors and Humidity Sensors 
     As shown in  FIG. 10 , a sensor assembly  10   c  may include a plurality of sensors  100 , and a sensing material  500  is provided in each of the plurality of sensors  100 . In this case, the plurality of sensors  100  may include a plurality of olfactory sensors  100   a , at least one temperature sensor  100   b , and at least one humidity sensor  100   c.    
     That is, both the temperature sensor  100   b  and the humidity sensor  100   c  may be provided singly or be provided in plurality as shown in  FIG. 9 .  FIG. 10  illustrates a case in which a single temperature sensors  100   b  and a single humidity sensor  100   c  are provided in the sensor assembly  10   b . However, this is exemplary and not limited thereto. 
     In this case, the sensor assembly  10   c  may include a plurality of olfactory sensors  100   a  including different types of sensing materials. In this case, different types of sensing materials may be understood as components for detecting different odor particles. 
     Referring to  FIG. 10 , a [1,1] sensor  1111  to a [4,4] sensor  1144  are included in the sensor assembly  10   c . In addition, the [1,1] sensor  1111  to the [4,4] sensor  1144  may include one temperature sensor  100   b  and one humidity sensor  100   c . That is, the sensor assembly  10   c  may include 14 olfactory sensors  100   a.    
     Further, the [1,1] sensor  1111  to the [4,4] sensor  1144  may include a [1,1] sensing material  1211  to a [4,4] sensing material  1244 , respectively. In this case, for convenience of understanding, the sensing material for detecting a change in resistance value due to temperature is indicated by a triangle, and the sensing material for detecting a change in resistance value due to humidity is indicated by a square. In addition, the sensing material for detecting a change in resistance value according to smell is indicated by a circle. 
     Accordingly, the [1, 4] sensing material  1214  may be a sensing material for detecting a change in resistance value according to humidity. In addition, it can be seen that the [4,1] sensing material  1241  corresponds to a sensing material for detecting a change in resistance value according to temperature. That is, the [1,4] sensor  1114  may correspond to the humidity sensor, and the [4,1] sensor  1141  may correspond to the temperature sensor. 
     In this case, the arrangement of the humidity sensor and the temperature sensor is merely exemplary. That is, the humidity sensor and the temperature sensor may be disposed at different positions. In addition, the number of the humidity sensors and the number of the temperature sensors are exemplary and may be provided in various numbers. 
     In addition, the remaining sensing materials may be sensing materials for detecting a change in resistance value according to smell. That is, the [1,1] sensor  1111  to [4,4] sensor  1144  except for the [1,4] sensor  1114  and the [4,1] sensor  1141  correspond to an olfactory sensor. 
     In addition, the [1,1] sensor  1111  to the [4,4] sensor  1144  except for the [1,4] sensor  1114  and the [4,1] sensor  1141  may have different types of sensing materials. 
       FIG. 10  shows that all olfactory sensors include different types of sensing materials. Accordingly, the sensor assembly  10   c  may include sensing materials for detecting  14  different types of odor particles. 
     Referring to  FIG. 6 , first, output values of the [1,1] sensor  1111 , the [1,2] sensor  1112 , the [1,3] sensor  1113  and the [1,4] sensor  1114  are detected. Then, the output values of the [2,1] sensor  1121 , the [2,2] sensor  1122 , the [2,3] sensor  1123  and the [2,4] sensor  1124  are detected. Then, the output values of the [3,1] sensor  1131 , the [3,2] sensor  1132 , the [3,3] sensor  1133  and the [3,4] sensor  1134  are detected. 
     Finally, the output values of the [4,1] sensor  1141 , the [4,2] sensor  1142 , the [4,3] sensor  1143  and the [4,4] sensor  1144  are detected. Then, data corresponding to the output values of the [1,1] sensor  1111  to the [4,4] sensor  1144  is transmitted to the controller  20 . 
     The controller  20  may output the output value of the [1,4] sensor  1114  as a humidity value (C). In addition, the controller  20  may output the output value of the [4,1] sensor  1141  as a temperature value (B). 
     Then, the controller  20  may calibrate the output values of the [1,1] sensor  1111  to the [4,4] sensor  1144  except for the [1,4] sensor  1114  and the [4,1] sensor  1141 , using the output values of the [1,4] sensor  1114  and the [4,1] sensor  1141 . The calibrated value may be output as the olfactory value (A). 
     Also, the controller  20  may analyze a predetermined odor through output values of different types of sensing materials. That is, the controller  20  may discriminate or estimate odor based on values obtained by detecting different odor particles. 
     In this way, the sensor assembly  10   c  may output an olfactory value (A), a temperature value (B), and a humidity value (C). In particular, the sensor assembly  10   c  may derive a more accurate olfactory value (A) through odor particles detected by various types of sensing materials. 
     In addition, the sensor assembly  10  may include a plurality of olfactory sensors  100   a  including the same type of sensing material. In addition, a plurality of olfactory sensors  100   a  including different types of sensing materials may be included in the sensor assembly  10   c . When a plurality of olfactory sensors  100   a  including the same type of sensing material are included, an average value thereof may be selected as an output value. 
     As described above, the sensor assembly  10  according to the spirit of the present disclosure may include an olfactory sensor, a temperature sensor, and a humidity sensor. In addition, the olfactory sensor, the temperature sensor, or the humidity sensor may be provided in various numbers and arrangements.