Abstract:
A measuring method for measuring a physiological parameter via a measuring system comprising a test strip, an auxiliary measuring device and an electronic device having an application program and an analog-to digital converting unit is provided. The measuring method includes steps of coupling the auxiliary measuring device between the test strip and the electronic device to form a loop; the electronic device executing the application program to provide a first analog signal, and transferring the first analog signal to the auxiliary measuring device via the loop; the auxiliary measuring device applying a voltage to the test strip according to the first analog signal, and causing the test strip to generate a second analog signal; the analog-to-digital converting unit converting the second analog signal into a digital signal via the application program; and the application program calculating the digital signal to estimate the physiological parameter.

Description:
CROSS-REFERENCE TO RELATED APPLICATION AND CLAIM OF PRIORITY 
       [0001]    The application claims the benefit of Taiwan Patent Application No. 100118524, filed on May 26, 2011, in the Taiwan Intellectual Property Office, the disclosures of which are incorporated herein in their entirety by reference. 
       FIELD OF THE INVENTION 
       [0002]    The present invention relates to a system and method for measuring parameters, and more particularly to a system and method for measuring physiological parameters. 
       BACKGROUND OF THE INVENTION 
       [0003]    Due to changes of the living environment and increase of the aged people, the probability of suffering from hypertension, hyperlipidemin and hyperglycemia is enhanced, and the ages of patients are getting younger and younger. For monitoring body conditions, most people or families have personal health-care devices for measuring blood pressure and blood sugar. However, there are many personal health-care devices with different brands in the market, which have no common standard. Hence, it is time-consuming to integrate the health-care data measured by these personal health-care devices. 
         [0004]    Conventionally, an independent measuring device is needed to perform the measurement. The measuring device includes a processor such as a microprocessor control unit (MCU), an analog-to-digital converter (ADC), a storing device such as an electrically erasable programmable read-only memory (EEPROM), a display interface such as an LCD, a general purpose input/output (GPIO), ect., so that it can be operated independently. The measuring device has a more complex hardware structure. Besides, when the measuring device is connected to different electronic devices to perform data integration, different connection interfaces are required, which is very inconvenient. 
         [0005]    In order to overcome the drawbacks in the prior art, a system and method for measuring physiological parameters are provided. The particular design in the present invention not only solves the problems described above, but also is easy to be implemented. Thus, the present invention has the utility for the industry. 
       SUMMARY OF THE INVENTION 
       [0006]    In accordance with an aspect of the present invention, a measuring device having a simple hardware structure is provided, which not only reduces the production cost but also enables the user to perform integration with any electronic devices. This greatly enhances the operational convenience for the user. 
         [0007]    In accordance with another aspect of the present invention, an auxiliary measuring device is provided. The auxiliary measuring device cooperates with the current electronic device having an application program, uses a common connection interface, e.g. an audio port (for example, a microphone-type audio port) or the 30-pin connection terminal of the I phone, to build the “audio port” connection interface in the electronic device, and measures a test strip including a physiological parameter. Then, the calculation and correction are performed by the application program of the electronic device to obtain the data of the physiological parameter, thereby achieving the effect of measuring physiological parameters. For example, the current electronic device can be a personal computer, a notebook computer, a smart hand-held device, etc. 
         [0008]    In accordance with a further aspect of the present invention, a measuring method for measuring a physiological parameter via a measuring system comprising a test strip, an auxiliary measuring device and an electronic device having an application program and an analog-to digital converting unit is provided. The measuring method includes steps of coupling the auxiliary measuring device between the test strip and the electronic device to form a loop; the electronic device executing the application program to provide a first analog signal, and transferring the first analog signal to the auxiliary measuring device via the loop; the auxiliary measuring device applying a voltage to the test strip according to the first analog signal, and causing the test strip to generate a second analog signal; the analog-to-digital converting unit converting the second analog signal into a digital signal via the application program; and the application program calculating the digital signal to estimate the physiological parameter. 
         [0009]    In accordance with further another aspect of the present invention, a measuring system for measuring a physiological parameter is provided. The measuring system includes an auxiliary measuring device; an application program; and an analog-to-digital converting unit, wherein the application program indicates the analog-to-digital converting unit to convert an analog signal, which is from the auxiliary measuring device and associated with the physiological parameter, into a digital signal to obtain a measuring datum for the physiological parameter. 
         [0010]    Preferably, the measuring system further includes a sensing unit including a test strip sensing the physiological parameter in response to a voltage to generate the analog signal; and the auxiliary measuring device coupled between the test strip and the analog-to-digital converting unit to form a loop, having a power source control unit for supplying the voltage, and sending the analog signal to the analog-to-digital converting unit via the loop. 
         [0011]    Preferably, the measuring system further includes an electronic device coupled to the auxiliary measuring device, and including a storing unit storing the digital signal, the application program and a correction datum; a processing unit executing the application program to generate an audio digital signal, calculating the digital signal by using the application program and the correction datum to generate the measuring datum, storing the measuring datum in the storing unit by using the application program, and processing data transmitted from the analog-to-digital converting unit and the storing unit; a display unit displaying the measuring datum for the physiological parameter; the analog-to-digital converting unit; and a digital-to-analog converting unit converting the audio digital signal into an audio analog signal, wherein the audio analog signal is a sensing analog signal having a specific audio frequency. 
         [0012]    In accordance with further another aspect of the present invention, a method for measuring a physiological parameter is provided. The method includes steps of providing an electronic device having an analog-to-digital converting unit and an application program; generating an analog signal associated with the physiological parameter; converting the analog signal into a digital signal by using the analog-to-digital converting unit, under an operation of the application program; and measuring the physiological parameter according to the digital signal. 
         [0013]    The above objects and advantages of the present invention will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed descriptions and accompanying drawings, in which: 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0014]      FIG. 1  shows a measuring system according to the present invention; 
           [0015]      FIG. 2  shows the structure of a measuring system according to a first embodiment of the present invention; 
           [0016]      FIG. 3  is a flowchart of a measuring method for the measuring system according to the first embodiment of the present invention; 
           [0017]      FIG. 4  shows the structure of a measuring system according to a second embodiment of the present invention; 
           [0018]      FIG. 5  is a flowchart of a measuring method for the measuring system according to the second embodiment of the present invention; 
           [0019]      FIG. 6  shows the structure of a measuring system according to a third embodiment of the present invention; 
           [0020]      FIG. 7  is a flowchart of a measuring method for the measuring system according to the third embodiment of the present invention; 
           [0021]      FIG. 8  shows the structure of a measuring system according to a fourth embodiment of the present invention; and 
           [0022]      FIG. 9  is a flowchart of a measuring method for the measuring system according to the fourth embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0023]    The present invention will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this invention are presented herein for the purposes of illustration and description only; it is not intended to be exhaustive or to be limited to the precise form disclosed. 
         [0024]    Please refer to  FIG. 1 , which shows a measuring system  10  according to the present invention. The measuring system  10  includes an electronic device  13  and a sensing unit  14 . The sensing unit  14  includes a test strip  11  and a measuring device  12 . The sensing unit  14  can have many types. According to a first type of the sensing unit  14 , the test strip  11  and the measuring device  12  are integrated in one device. According to a second type of the sensing unit  14 , the test strip  11  is separate from the measuring device  12 . The test strip  11  includes two contact points C 111 , C 112 . The measuring device  12  includes an audio port plug  124  and at least two contact points C 121 , C 122 . The test strip  11  provides various kinds of physiological parameters. For example, the physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. The two contact points C 111 , C 112  of the test strip  11  are coupled to the two contact points C 121 , C 122  of the measuring device  12  respectively. The measuring device  12  is coupled to the electronic device  13  via the audio port plug  124 . For example, the electronic device  13  can be a smart hand-held device, a notebook computer or a personal computer. 
         [0025]    Please refer to  FIG. 2 , which shows the structure of a measuring system  20  according to a first embodiment of the present invention. The measuring system  20  includes an electronic device  23  and a sensing unit  24 . The sensing unit  24  includes a test strip  21  and a measuring device  22 . The sensing unit  24  can be variety of types. According to a first type of the sensing unit  24 , the test strip  21  and the measuring device  22  are integrated in one device. According to a second type of the sensing unit  24 , the test strip  21  is separate from the measuring device  22 . The test strip  21  includes two contact points C 211 , C 212 . The measuring device  22  includes a power source control unit  223  and at least two contact points C 221 , C 222 . The electronic device  23  includes a storing unit  231 , an audio port unit  232 , a processing unit  233  and a display unit  234 . The audio port unit  232  includes an analog-to-digital converting unit  232 A and a digital-to-analog converting unit  232 D. The storing unit  231  includes a digital signal block  231 S, an application program  231 A and a correction datum  231 C. 
         [0026]    The contact points C 211 , C 212  of the test strip  21  are coupled to the contact points C 221 , C 222  of the measuring device  22  respectively to form a loop  25 . The test strip  21  senses a physiological parameter in response to a voltage to generate an analog signal. The measuring device  22  is coupled between the test strip  21  and the audio port unit  232  for providing the voltage, and transferring the analog signal to the audio port unit  232 . For example, the analog signal is a feedback analog signal associated with the physiological parameter, and the feedback analog signal is a current-dependent analog signal or a voltage-dependent analog signal. 
         [0027]    When the measuring device  22  receives power from the electronic device  23 , the power source control unit  223  is a signal converting unit for converting a first audio analog signal into the voltage. 
         [0028]    The audio port unit  232  converts the feedback analog signal associated with the physiological parameter into a digital signal, so as to measure the physiological parameter. For example, the digital signal is a final digital signal. The analog-to-digital converting unit  232 A of the audio port unit  232  converts the feedback analog signal into the final digital signal. For example, the feedback analog signal is an analog signal indicating the variation degree of the voltage or current, and the final digital signal is a digital signal indicating the variation degree of the voltage or current. The digital-to-analog converting unit  232 D converts the original digital signal into the sensing analog signal. For example, the original digital signal is an audio digital signal, and the sensing analog signal is an audio analog signal. 
         [0029]    The storing unit  231  stores the digital signal block  231 S, the application program  231 A and the correction datum  231 C. The digital signal block  231 S stores the collected final digital signal. The processing unit  233  processes the digital signal block  231 S by using the application program  231 A and the correction datum  231 C, so as to generate a measuring datum, stores the measuring datum in the storing unit  231  by using the application program  231 A, and processes data transmitted from the analog-to-digital converting unit  232 A and the storing unit  231 . The measuring datum includes a quantitative physiological parameter for indicating the physiological parameter. The display unit  234  displays the measuring datum for the physiological parameter. The physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. 
         [0030]    Please refer to  FIG. 3 , which is a flowchart of a measuring method for the measuring system  20  according to the first embodiment of the present invention. In the step S 31 , a measuring device  22  is coupled to an audio port unit  232  of an electronic device  23 . In the step S 32 , a test strip  21  is coupled to the measuring device  22  to form a loop  25 . In the step S 33 , an original digital signal having a specific frequency is generated by an application program  231 A of the electronic device  23 . For example, the original digital signal is an audio digital signal. The original digital signal is converted into a first audio analog signal by a digital-to-analog converting unit  232 D of the audio port unit  232 , and then the digital-to-analog converting unit  232 D transfers the first audio analog signal to the measuring device  22 . In the step S 34 , when the measuring device  22  receives power from the electronic device  23 , a power source control unit  223  in the measuring device  22  is a signal converting unit, and the power source control unit  223  converts the first audio analog signal into a voltage. In the step S 35 , the measuring device  22  applies the voltage to the test strip  21 . In the step S 36 , the test strip  21  generates a feedback analog signal associated with the physiological parameter in response to the voltage. For example, the feedback analog signal is a current-dependent analog signal or a voltage-dependent analog signal. The feedback analog signal is transmitted to the audio port unit  232  of the electronic device  23  via the measuring device  22 . In the step S 37 , an analog-to-digital converting unit  232 A of the audio port unit  232  converts the feedback analog signal into a final digital signal, and stores the final digital signal in a digital signal block  231 S. In the step S 38 , a processing unit  233  processes the data of the digital signal block  231 S by using the application program  231 A and a correction datum  231 C, so as to generate a measuring datum. The measuring datum includes a quantitative physiological parameter for indicating the physiological parameter. In the step S 39 , a display unit  234  displays the measuring datum for the physiological parameter processed by the application program  231 A. In the embodiments of the present invention, the physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. 
         [0031]    Please refer to  FIG. 4 , which shows the structure of a measuring system  40  according to a second embodiment of the present invention. The measuring system  40  includes an electronic device  43  and a sensing unit  44 . The sensing unit  44  includes a test strip  41  and a measuring device  42 . The sensing unit  44  can have many types. According to a first type of the sensing unit  44 , the test strip  41  and the measuring device  42  are integrated in one device. According to a second type of the sensing unit  44 , the test strip  41  is separate from the measuring device  42 . The test strip  41  includes two contact points C 411 , C 412 . The measuring device  42  includes a power source control unit  423 , a battery  424  and at least two contact points C 421 , C 422 . The electronic device  43  includes a storing unit  431 , an audio port unit  432 , a processing unit  433  and a display unit  434 . The audio port unit  432  includes an analog-to-digital converting unit  432 A and a digital-to-analog converting unit  432 D. The storing unit  431  includes a digital signal block  431 S, an application program  431 A and a correction datum  431 C. 
         [0032]    The contact points C 411 , C 412  of the test strip  41  are coupled to the contact points C 421 , C 422  of the measuring device  42  respectively to form a loop  45 . The test strip  41  senses a physiological parameter in response to a voltage to generate an analog signal. The measuring device  42  is coupled between the test strip  41  and the audio port unit  432 , provides the voltage, and transfers the analog signal to the audio port unit  432 . For example, the analog signal is a feedback analog signal associated with the physiological parameter, and the feedback analog signal is a current-dependent analog signal or a voltage-dependent analog signal. 
         [0033]    When the measuring device  42  includes the battery  424 , the power source control unit  423  is a switch control unit for switching a first voltage mode to a second voltage mode in response to a second audio analog signal to cause the battery  424  to provide the voltage. 
         [0034]    The audio port unit  432  converts the feedback analog signal associated with the physiological parameter into a digital signal to measure the physiological parameter. For example, the digital signal is a final digital signal. The analog-to-digital converting unit  432 A of the audio port unit  432  converts the feedback analog signal into the final digital signal. For example, the feedback analog signal is an analog signal indicating the variation degree of the voltage or current, and the final digital signal is a digital signal indicating the variation degree of the voltage or current. The digital-to-analog converting unit  432 D converts the original digital signal into the sensing analog signal. For example, the original digital signal is an audio digital signal, and the sensing analog signal is an audio analog signal. 
         [0035]    The storing unit  431  stores the digital signal block  431 S, the application program  431 A and the correction datum  431 C. The digital signal block  431 S stores the collected final digital signal. The processing unit  433  processes the digital signal block  431 S by using the application program  431 A and the correction datum  431 C to generate a measuring datum, stores the measuring datum in the storing unit  431  by using the application program  431 A, and processes data sent by the analog-to-digital converting unit  432 A and the storing unit  431 . The measuring datum includes a quantitative physiological parameter for indicating the physiological parameter. The display unit  434  displays the measuring datum for the physiological parameter. In the embodiments of the present invention, the physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. 
         [0036]    Please refer to  FIG. 5 , which is a flowchart of a measuring method for the measuring system  40  according to the second embodiment of the present invention. In the step S 51 , a measuring device  42  is coupled to an audio port unit  432  of an electronic device  43 . In the step S 52 , a test strip  41  is coupled to the measuring device  42  to form a loop  45 . In the step S 53 , an original digital signal having a specific frequency is generated by an application program  431 A of the electronic device  43 . For example, the original digital signal is an audio digital signal. The original digital signal is converted into a second audio analog signal by a digital-to-analog converting unit  432 D of the audio port unit  432 , and then the digital-to-analog converting unit  432 D transfers the second audio analog signal to the measuring device  42 . In the step S 54 , when the measuring device  42  includes a battery  424 , a power source control unit  423  in the measuring device  42  is a switch control unit for switching a first voltage mode to a second voltage mode in response to the second audio analog signal to cause the battery  424  to provide the voltage. In the step S 55 , the measuring device  42  applies the voltage to the test strip  41 . In the step S 56 , the test strip  41  generates a feedback analog signal associated with the physiological parameter in response to the voltage. For example, the feedback analog signal is a current-dependent analog signal or a voltage-dependent analog signal. The feedback analog signal is transmitted to the audio port unit  432  of the electronic device  43  via the measuring device  42 . In the step S 57 , an analog-to-digital converting unit  432 A of the audio port unit  432  converts the feedback analog signal into a final digital signal, and stores the final digital signal in a digital signal block  431 S. In the step S 58 , a processing unit  433  processes the data of the digital signal block  431 S by using the application program  431 A and a correction datum  431 C to generate a measuring datum. The measuring datum includes a quantitative physiological parameter for indicating the physiological parameter. In the step S 59 , a display unit  434  displays the measuring datum for the physiological parameter processed by the application program  431 A. In the embodiments of the present invention, the physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. 
         [0037]    Please refer to  FIG. 6 , which shows the structure of a measuring system  60  according to a third embodiment of the present invention. The measuring system  60  includes an electronic device  63  and a sensing unit  64 . The sensing unit  64  includes a test strip  61  and an auxiliary measuring device  62 . The sensing unit  64  can be variety of types. The electronic device can be a computer or a smart mobile device, e.g. the cellphone, PDA or iPAD. According to a first type of the sensing unit  64 , the test strip  61  and the auxiliary measuring device  62  are integrated in one device. According to a second type of the sensing unit  64 , the test strip  61  is separate from the measuring device  62 . The test strip  61  includes two contact points C 611 , C 612 . The auxiliary measuring device  62  includes a power source control unit  623  and at least two contact points C 621 , C 622 . The electronic device  63  includes a storing unit  631 , an analog-to-digital converting unit  632 A, a digital-to-analog converting unit  632 D, a processing unit  633  and a display unit  634 . The storing unit  231  includes a digital signal block  631 S, an application program  631 A and a correction datum  631 C. Usually, the application program  631 A is an APP program for the computer or the smart mobile device, e.g. the iOS software, Android, Windows Mobil Phone App software, etc. 
         [0038]    The processing unit  633  executes the application program  631 A to generate an audio digital signal, and converts the audio digital signal into an audio analog signal by using the digital-to-analog converting unit  632 D. In one embodiment, the audio analog signal is an audio voltage signal. As shown in  FIG. 6 , the contact points C 611 , C 612  of the test strip  61  are coupled to the contact points C 621 , C 622  of the auxiliary measuring device  62  respectively to form a loop  65 . The test strip  61  senses a physiological parameter in response to a voltage to generate an analog signal. In one embodiment, the power source control unit  623  generates the voltage according to the audio analog signal; in another embodiment, the audio voltage signal directly provides the voltage. The auxiliary measuring device  62  is coupled between the test strip  61  and the electronic device  63 , and transfers the analog signal to the electronic device  63 . For example, the analog signal is a feedback analog signal associated with the physiological parameter, and the feedback analog signal is a current-dependent analog signal or a voltage-dependent analog signal. 
         [0039]    The electronic device  63  can supply the power required for the auxiliary measuring device  62 . When the auxiliary measuring device  62  receives power from the electronic device  63 , the power source control unit  623  is a signal converting unit for converting the audio analog signal into the voltage. 
         [0040]    The analog-to-digital converting unit  632 A converts the analog signal into a digital signal according to the command sent by the application program  631 A, so as to obtain the measuring datum for the physiological parameter in the subsequent operation. For example, the digital signal is a final digital signal. The analog-to-digital converting unit  632 A converts the feedback analog signal into the final digital signal. For example, the feedback analog signal is an analog signal indicating the variation degree of the voltage or current, and the final digital signal is a digital signal indicating the variation degree of the voltage or current. The digital-to-analog converting unit  632 D converts the original digital signal into the sensing analog signal. For example, the original digital signal is an audio digital signal, and the sensing analog signal is an audio analog signal. 
         [0041]    The storing unit  631  stores the digital signal block  631 S, the application program  631 A and the correction datum  631 C. The digital signal block  631 S stores the collected final digital signal. The processing unit  633  processes the digital signal block  631 S by using the application program  631 A and the correction datum  631 C so as to generate a measuring datum, stores the measuring datum in the storing unit  631  by using the application program  631 A, and processes data transmitted from the analog-to-digital converting unit  632 A and the storing unit  631 . The measuring datum includes a quantitative physiological parameter for indicating the physiological parameter. The display unit  634  displays the measuring datum for the physiological parameter. The physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. 
         [0042]    Please refer to  FIG. 7 , which is a flowchart of a measuring method for the measuring system  60  according to the third embodiment of the present invention. In the step S 71 , an auxiliary measuring device  62  is coupled to an electronic device  63 . In the step S 72 , a test strip  61  is coupled to the auxiliary measuring device  62  to form a loop  65 . In the step S 73 , an original digital signal having a specific frequency is generated by an application program  631 A of the electronic device  63 . For example, the original digital signal is an audio digital signal. The original digital signal is converted into a first audio analog signal by a digital-to-analog converting unit  632 D of the electronic device  63 , and then the digital-to-analog converting unit  632 D transfers the first audio analog signal to the auxiliary measuring device  62 . In the step S 74 , when the auxiliary measuring device  62  receives power from the electronic device  63 , a power source control unit  623  in the measuring device  62  is a signal converting unit, and the power source control unit  623  converts the first audio analog signal into a voltage. In the step S 75 , the auxiliary measuring device  62  applies the voltage to the test strip  61 . In the step S 76 , the test strip  61  generates a feedback analog signal associated with the physiological parameter in response to the voltage. For example, the feedback analog signal is a current-dependent analog signal or a voltage-dependent analog signal. The feedback analog signal is transmitted to an analog-to-digital converting unit  632 A of the electronic device  63  via the auxiliary measuring device  62 . In the step S 77 , the analog-to-digital converting unit  632 A of the electronic device  63  converts the feedback analog signal into a final digital signal, and stores the final digital signal in a digital signal block  631 S. In the step S 78 , a processing unit  633  processes the data of the digital signal block  631 S by using the application program  631 A and a correction datum  631 C so as to generate a measuring datum. The measuring datum includes a quantitative physiological parameter for indicating the physiological parameter. In the step S 79 , a display unit  634  displays the measuring datum for the physiological parameter processed by the application program  631 A. In the embodiments of the present invention, the physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. 
         [0043]    Please refer to  FIG. 8 , which shows the structure of a measuring system  80  according to a fourth embodiment of the present invention. The measuring system  80  includes an electronic device  83  and a sensing unit  84 . The sensing unit  84  includes a test strip  81  and an auxiliary measuring device  82 . The sensing unit  84  can be variety of types. According to a first type of the sensing unit  84 , the test strip  81  and the auxiliary measuring device  82  are integrated in one device. According to a second type of the sensing unit  84 , the test strip  81  is separate from the measuring device  82 . The test strip  81  includes two contact points C 811 , C 812 . The auxiliary measuring device  82  includes a power source control unit  823 , a battery  824  and at least two contact points C 821 , C 822 . The electronic device  83  includes a storing unit  831 , an analog-to-digital converting unit  832 A, a digital-to-analog converting unit  832 D, a processing unit  833  and a display unit  834 . The storing unit  831  includes a digital signal block  831 S, an application program  831 A and a correction datum  831 C. Usually, the application program  831 A is an APP program for the computer or the smart mobile device, e.g. the iOS software, Android, Windows Mobil Phone App software, etc. 
         [0044]    As shown in  FIG. 8 , an original digital signal having a specific frequency is generated by an application program  831 A of the electronic device  83 . For example, the original digital signal is an audio digital signal. The original digital signal is converted into a first audio analog signal by a digital-to-analog converting unit  832 D of the electronic device  83 , and then the digital-to-analog converting unit  832 D transfers the first audio analog signal to the auxiliary measuring device  82 . The auxiliary measuring device  82  includes the power source control unit  823  and a biochemical measuring unit  820 . When the auxiliary measuring device  82  includes the battery  824 , the power source control unit  823  is a switch control unit for switching a first voltage mode to a second voltage mode in response to a second audio analog signal to cause the battery  824  to provide the voltage. 
         [0045]    The contact points C 811 , C 812  of the test strip  81  are coupled to the contact points C 821 , C 822  in the biochemical measuring unit  820  respectively to form a loop  85 . The test strip  81  senses a physiological parameter in response to a voltage to generate an analog signal. The auxiliary measuring device  82  is coupled between the test strip  81  and the electronic device  83 , provides the voltage, and transfers the analog signal to the analog-to-digital converting unit  832 A. For example, the analog signal is a feedback analog signal associated with the physiological parameter, and the feedback analog signal is a current-dependent analog signal or a voltage-dependent analog signal. 
         [0046]    The analog-to-digital converting unit  832 A converts the analog signal into a digital signal according to the command sent by the application program  831 A, so as to obtain the measuring datum for the physiological parameter in the subsequent operation. For example, the digital signal is a final digital signal. The analog-to-digital converting unit  832 A converts the feedback analog signal into the final digital signal. For example, the feedback analog signal is an analog signal indicating the variation degree of the voltage or current, and the final digital signal is a digital signal indicating the variation degree of the voltage or current. 
         [0047]    The storing unit  831  stores the digital signal block  831 S, the application program  831 A and the correction datum  831 C. The digital signal block  831 S stores the final digital signal. The processing unit  833  processes the digital signal block  831 S by using the application program  831 A and the correction datum  831 C so as to generate a measuring datum, stores the measuring datum in the storing unit  831  by using the application program  831 A, and processes data transmitted from the analog-to-digital converting unit  832 A and the storing unit  831 . The measuring datum includes a quantitative physiological parameter for indicating the physiological parameter. The display unit  834  displays the measuring datum for the physiological parameter. The physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. 
         [0048]    Please refer to  FIG. 9 , which is a flowchart of a measuring method for the measuring system  80  according to the fourth embodiment of the present invention. In the step S 91 , an auxiliary measuring device  82  is coupled to an electronic device  83 . In the step S 92 , a test strip  81  is coupled to the auxiliary measuring device  82  to form a loop  85 . In the step S 93 , an original digital signal having a specific frequency is generated by an application program  831 A of the electronic device  83 . For example, the original digital signal is an audio digital signal. The original digital signal is converted into a first audio analog signal by a digital-to-analog converting unit  832 D of the electronic device  83 , and then the digital-to-analog converting unit  832 D transfers the first audio analog signal to the auxiliary measuring device  82 . In the step S 94 , when the auxiliary measuring device  82  includes a battery  824 , a power source control unit  823  in the auxiliary measuring device  82  is a switch control unit for switching a first voltage mode to a second voltage mode in response to a second audio analog signal to cause the battery  824  to provide a voltage. In the step S 95 , the auxiliary measuring device  82  applies the voltage to the test strip  81 . In the step S 96 , the test strip  81  generates a feedback analog signal associated with the physiological parameter in response to the voltage. For example, the feedback analog signal is a current-dependent analog signal or a voltage-dependent analog signal. The feedback analog signal is transmitted to an analog-to-digital converting unit  832 A of the electronic device  83  via the auxiliary measuring device  82 . In the step S 97 , the analog-to-digital converting unit  832 A of the electronic device  83  converts the feedback analog signal into a final digital signal, and stores the final digital signal in a digital signal block  831 S. In the step S 98 , a processing unit  833  processes the data of the digital signal block  831 S by using the application program  831 A and a correction datum  831 C so as to generate a measuring datum. The measuring datum includes a quantitative physiological parameter for indicating the physiological parameter. In the step S 99 , a display unit  834  displays the measuring datum for the physiological parameter processed by the application program  831 A. In the embodiments of the present invention, the physiological parameter includes at least one of physiological parameters associated with the blood sugar concentration and the cholesterol concentration. 
         [0049]    The present invention only needs to cooperate with a test strip suitable for different physiological parameters, and connect to an electronic device via an auxiliary measuring device. The electronic device can obtain the signal generated by the auxiliary measuring device via a specific application program so that the electronic device can perform the measuring operation. Accordingly, when a general electronic device can cooperate with a suitable APP to provide the inspecting function, the method and device for measuring the physiological parameter of the present invention does not need to use the physiological inspecting device having an inspecting capability. Therefore, the present invention can save the configuration of the processing unit, the storing unit and the display unit, thereby greatly reducing the production cost. On the other hand, the auxiliary measuring device can perform the measuring operation by connecting an audio port or a USB connector to an electronic device, and installing a specific application program in the electronic device. For example, the electronic device is a computer or a smart mobile device. Hence, the present invention simplifies the method and device for measuring the physiological parameter. To compare with the prior art, the present invention uses the audio port (such as a microphone-type audio port) which can be built in each electronic device collectively and be used commonly. This greatly overcomes the inconvenience resulting from different connection interfaces of different devices. 
       Power Source Control Unitpower Source Control Unitpower Source Control Unit 
       [0050]    While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.