Abstract:
A method of obtaining data of a home appliance, which includes the following steps: Sense the home appliance to obtain running data, and transmit the running data to an interpreter; save the running data in a memory of the interpreter as a plurality of history logs; connect a specific electronic device to the interpreter via a network; send a retrieval command to the interpreter; transmit at least one history log to the electronic device according to the retrieval command. With such design, repairmen can only obtain the history logs which are helpful for repairing and maintenance under authentication.

Description:
[0001]    The current application claims a foreign priority to the patent application of Taiwan No. 102132814 filed on Sep. 11, 2013. 
       BACKGROUND OF THE INVENTION 
       [0002]    1. Technical Field 
         [0003]    The present invention relates generally to a home appliance, and more particular to a method of obtaining data of a home appliance. 
         [0004]    2. Description of Related Art 
         [0005]      FIG. 1  shows a conventional monitoring system  1  of a home appliance, which includes a water heater  10  (as an example of the home appliance), a computer  11  and a monitoring unit  12 . The water heater  10  and the computer  11  are located at a user end and are connected to the monitoring unit  12 , which is located at a service end, through Internet. Running data of the water heater  10  are collected by the computer  11  and are transmitted to the monitoring unit  12  through Internet. The monitoring unit  12  records the running data from the user end, and a service person  14  informs the user via a phone  15  once an abnormality is found by the monitoring unit  12 . 
         [0006]    The advantage of the conventional monitoring system  1  is that the service end is able to provide a good service by acquiring the running data of the home appliance. However, it might leak out some information of the user and invade his/her privacy, such as the time when the user stays at home, and the usage habits of the home appliance of the user. If such information is obtained by outlaws, it may cause damages of the user. 
       BRIEF SUMMARY OF THE INVENTION 
       [0007]    In view of the above, the primary objective of the present invention is to provide a method of obtaining data of a home appliance, which can monitor the home appliance without invading the privacy of the user. 
         [0008]    The secondary objective of the present invention is to provide a method of obtaining data of a home appliance, which keeps useful logs of the running data of the home appliance for repairing and maintenance purposes. 
         [0009]    The present invention provides a method of obtaining data of a home appliance, which includes the following steps: A. Continuously sense the home appliance to obtain running data of the home appliance and transmit the running data to an interpreter; B. Save the running data as a plurality of history logs; C. Connect an electronic device to the interpreter; D. Send a retrieval command from the electronic device to the interpreter via a network; and E. Transmit at least one history log from the interpreter to the electronic device according to the retrieval command. 
         [0010]    With such design, the history logs of the home appliance can only be retrieved under authentication, which fully protects the privacy of the user. Furthermore, the history logs are helpful for repairmen to determine the usage condition of the home appliance, which could be useful for repairing and maintenance. 
     
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         [0011]    The present invention will be best understood by referring to the following detailed description of some illustrative embodiments in conjunction with the accompanying drawings, in which 
           [0012]      FIG. 1  is a sketch diagram of the conventional monitoring system of the home appliance; 
           [0013]      FIG. 2  is sketch diagram of a first preferred embodiment of the present invention; and 
           [0014]      FIG. 3  is a sketch diagram of a second preferred embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0015]    As shown in  FIG. 2 , a monitoring system  2  of a home appliance of the first preferred embodiment of the present invention includes a first electronic device  20   a,  a second electronic device  20   b,  an interpreter  30 , and a gas fireplace  40 . Except for the gas fireplace, the aforementioned home appliance may be gas water heater, electric water heater, air conditioner, or any equivalent equipment. 
         [0016]    In the first embodiment, the first and the second electronic devices  20   a,    20   b  are smart phones. The first electronic device  20   a  is held by an owner of the home appliance. The first electronic device  20   a  is installed with a first application, which allows the owner to input a control command, such as turning on/off, increasing/decreasing flames, or adjusting airflow, and the first application converts the control command into a Wi-Fi control signal W 1  for sending out. The second electronic device  20   b  is held by a repairman at a service station of the home appliance. The second electronic device  20   b  is installed with a second application (a monitoring application), which has not only the same functions with the first application, but also advanced control functions. In practice, the first and the second electronic devices  20   a,    20   b  may be any devices which are capable of receiving and transmitting Wi-Fi signals, such as desktops, laptops, tablets, or PDAs. 
         [0017]    The interpreter  30  has a Wi-Fi transceiver  32 , a converter  34 , a first radio frequency (RF) transceiver  36 , a memory  38 , and a timer  39 . The converter  34  is electrically connected to the Wi-Fi transceiver  32 , the first RF transceiver  36 , the memory  38 , and the timer  39  respectively. 
         [0018]    The Wi-Fi transceiver  32  is wirelessly connected to the first and the second electronic devices  20   a,    20   b  to receive the Wi-Fi control signal W 1  from the first and the second electronic devices  20   a,    20   b.  The converter  34  converts the Wi-Fi control signal W 1  into a radio frequency (RF) control signal R 1 , and the first RF transceiver  36  sends the RF control signal R 1  out. 
         [0019]    The gas fireplace  40  includes a burner  42 , a gas valve,  44 , a fan  46 , a controller  48 , and a plurality of sensors  50   a,    50   b,    50   c.    
         [0020]    The burner  42  burns gas from a gas pipe  422 , and the gas valve  42  is provided in the gas pipe  422  to adjust a gas flow in the gas pipe  422 . The fan  46  blows the hot air heated by the burner  42  to the room. The gas valve  42  and the fan  46  are controlled by electric signals. 
         [0021]    The controller  48  has a second radio frequency (RF) transceiver  482  and a controlling module  484 . The controlling module  484  is electrically connected to the gas valve  42  and the fan  46  respectively. The second RF transceiver  482  receives the RF control signal R 1  from the first RF transceiver  36  of the interpreter  30  and transfers it to the controlling module  484 . The controlling module  484  translates the RF control signal R 1  and generates control electric signals to control the gas valve  42  and/or the fan  46  accordingly, such as turning on/off the gas valve  44 , increasing/decreasing the gas flow through the gas valve  44 , turning on/off the fan  46 , adjusting the speed of the fan  46 , and so on. 
         [0022]    The sensors  50   a - 50   c  are electrically connected to the controlling module  484  to sense running data of the gas fireplace  40 . The sensor  50   a  senses the flames of the burner  42 , the sensor  50   b  senses the speed of the fan  46 , and the sensor  50   c  senses a temperature in the room. It is easy to understand that it may provide more sensors to acquire more running data. 
         [0023]    The controlling module  484  periodically converts the running data sensed by the sensors  50   a - 50   c  into RF data signals R 2 , and sends the RF data signals R 2  to the interpreter  30  through the second RF transceiver  482 . 
         [0024]    The first RF transceiver  36  receives the RF data signals R 2 , and the converter  34  translates the RF data signals R 2  back into the running data and save them in the memory  38  as history logs. The history logs include time stamps obtained from the timer  40 . Each time stamp indicates a time point when each RF data signal R 2  is received by the interpreter  30 . At the same time, the converter  34  converts the RF data signals R 2  into Wi-Fi data signal W 2 , and sends them to the first electronic device  20   a  and/or the second electronic device  20   b  through the Wi-Fi transceiver  32 . 
         [0025]    The first and the second electronic devices  20   a,    20   b  receive the Wi-Fi data signal W 2  and translates them to show the running data of the gas fireplace on screens. 
         [0026]    The advanced control functions of the second application allow the repairman to access the memory  38  and acquire the history logs under authentication. In the beginning, the second application generates an authentication-requiring command, which is converted into a Wi-Fi control signal W 1  and transmitted to the interpreter  30 . The Wi-Fi transceiver  32  receives the Wi-Fi control signal W 1 , and the converter  34  translates the Wi-Fi control signal W 1  back into the authentication-requiring command. For now, the second electronic device  20   b  is authenticated to access the memory  38 . 
         [0027]    Then the second application generates a retrieval command, which is also converted by the second electronic device  20   b  into the Wi-Fi control signal W 1  and sent to the interpreter  30 . When the interpreter  30  receives the Wi-Fi control signal W 1 , the converter  34  will translate the Wi-Fi control signal W 1  back into the retrieval command, and convert the history logs corresponding to the retrieval command into the Wi-Fi data signal W 2 , and then send the Wi-Fi data signal W 2  to the second electronic device  20   b  through the Wi-Fi transceiver  32 . The second application translates the Wi-Fi data signal W 2  to show the obtained history logs on the screen. Therefore, the repairman may realize some functional problems of the gas fireplace  40  according to the history logs. For instance, if the owner found the gas fireplace  40  is malfunctioned, but the gas fireplace  40  works normally when the repairman arrives for repairing. The repairman may send the retrieval command which specifies a timeslot through the second electronic device  20   b,  and obtain the history logs with time stamps corresponding to the timeslot to find the real problem of the gas fireplace  40 . 
         [0028]    The advanced control functions of the second application further includes statistics of the history logs. In this function, the time stamps of the history logs will be collected to calculate a total operating time of the gas fireplace  40 . 
         [0029]    In practice, the owner could set a verifying password, and save the verifying password in the memory  38  of the interpreter  30 . Before the repairman being authenticated to obtain the history logs, he/she has to send a password to the interpreter  30 , and the converter  34  is responsible to verify the password and the preset verifying password. Only when the password is identical to the verifying password, the repairman could be authenticated to access the history logs. 
         [0030]    Therefore, only the authorized person may access the memory  38  of the interpreter  30 . It may protect the privacy of the owner. 
         [0031]      FIG. 3  shows a monitoring system  3  of the second preferred embodiment of the present invention, which is similar to the first preferred embodiment, except that the monitoring system  3  further includes a wireless access point (wireless AP)  60 . The wireless AP  60  is connected to a network (Internet)  62 , and the first and the second electronic devices  20   a,    20   b  are connected to the network through the wireless AP  60 . The interpreter  30  is connected to the network, therefore the first and the second electronic devices  20   a,    20   b  are in connection with the interpreter  30  through the wireless AP  60  and the network. The rest of the monitoring system  3  is the same as the system  2  of the first preferred embodiment. The advantage to apply the wireless AP  60  is that the first and the second electronic devices  20   a,    20   b  may connect to Internet through the wireless AP  60  without affecting the network connecting functions of the first and the second electronic devices  20   a,    20   b.  Specifically, the internet in the second preferred embodiment is WLAN (wireless local area network), and the retrieval command and the history logs are carried by Wi-Fi signals. In another embodiment, the internet could be LAN (local area network) as well. 
         [0032]    In an embodiment, the interpreter  30  may connect to a plurality of home appliances to control and monitor these home appliances at the same time. Furthermore, the memory  38  of the interpreter  30  may save the history logs of all the home appliances. 
         [0033]    It must be pointed out that the embodiments described above are only some preferred embodiments of the present invention. All equivalent structures which employ the concepts disclosed in this specification and the appended claims should fall within the scope of the present invention.