JP2013239829A - Electronic apparatus and display information transmission method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable extraction to the outside and transmission of information displayed on a display unit of an electronic apparatus with less power consumption and a communication volume, enabling connection of the electronic apparatus without modification thereof, with an avoided cost increase.SOLUTION: A sampling unit 120 is provided on an existing electronic measuring apparatus 100, and a network adaptor 130 and a modem 135 are attached externally. Only when information displayed on a segment liquid crystal display unit 105 of the electronic measuring apparatus 100 is changed, an activation instruction notification is given from the sampling unit 120 to the network adaptor 130, so as to shift an operation state from a sleep state to a normal operation state. Also, by operating the modem 135, display information after the change is transmitted to a network.

Description

  The present invention relates to an electronic device having a function of displaying, for example, information measured by a sensor and device operation information, and a display information transmission method thereof.

  In recent years, network communication functions have been added to consumer electronic devices such as sensor devices, office equipment, and home appliances, and information such as data measured by devices, usage history, and operating status is transmitted and stored on a server or the like via a network. Various proposals have been made to make it possible to view these pieces of information from a user terminal.

  For example, Patent Document 1 discloses a lifestyle in which information on electrical products is transmitted to a central transmission means through a signal carrier route wired in the home, and the living situation is monitored by transmitting the information from the central transmission means to a monitoring means outside the home. Technologies related to monitoring systems have been proposed. Patent Document 2 proposes a technology related to a controller of a home appliance that controls home appliances connected via a communication line. In addition, some high-end consumer electronic devices are directly connected to the network. In the field of measurement equipment, the device is connected to a personal computer via a cable and connected to the network via a personal computer. It has also been done.

Japanese Patent No. 3886227 JP 2004-40285 A

  However, to enable communication by connecting an electronic device to a network, a communication device or communication module is added to the electronic device, and then a communication program for communicating with an external network is added to the control program for the electronic device. There is a problem that the cost of the equipment becomes high due to the development cost of both hardware and software.

  In addition, in order to easily transmit display information such as the operating state, measurement results, and display screen data of the electronic device, the control unit of the electronic device extracts significant information from the signal output to the display unit and transmits it to the network. Techniques have been proposed by the inventor. However, this proposed technique transmits information extracted from the signal output from the control unit to the network without omission. For this reason, even when the display information does not change, the same information is repeatedly transmitted many times, resulting in an increase in power consumption and communication amount of the communication unit.

  The present invention has been made paying attention to the above circumstances, and its object is to make it possible to connect to a network without modifying the electronic device and without causing an increase in cost, and displaying it on the display unit of the electronic device. It is an object of the present invention to provide an electronic device and a display information transmission method thereof that can extract the transmitted information to the outside with less power consumption and communication amount and transmit it.

  In order to achieve the above object, a first aspect of the present invention is a display unit for displaying information, and a display control unit for supplying signals necessary for displaying the information to the display unit via signal lines. And a sampling section that is branched and connected to the signal line and connected to an external communication unit. Then, every time the signal supplied from the display control unit to the display unit is fetched from the signal line by the sampling unit, the newly fetched signal is compared with a signal fetched in the past to determine whether or not there is a change. When it is determined that it has changed, an external communication unit is activated to transmit the newly acquired signal.

  According to a second aspect of the present invention, there is provided an electronic apparatus comprising: a display unit that displays information; and a display control unit that supplies a signal necessary for displaying the information to the display unit via a signal line. Then, a communication unit including a communication unit and a communication control unit thereof, and a sampling unit connected to the communication unit while being branched and connected to the signal line are further provided. Then, every time a signal supplied from the display control unit to the display unit is fetched from the signal line by the sampling unit, the newly fetched signal is compared with a signal fetched in the past to determine whether there is a change. When it is determined that the signal has changed, the sampling unit gives an activation instruction to the communication unit, and upon receiving the activation instruction, the communication unit is activated to receive and transmit the newly acquired signal from the sampling unit. It is what I did.

The first and second aspects of the present invention are also characterized by comprising the following various aspects.
In the first aspect, when the communication unit includes a communication unit and its communication control unit, communication is performed when the sampling unit determines that the newly acquired signal has changed from the previously acquired signal. The communication control unit of the unit is changed from the sleep state to the normal operation state.

  In the second aspect, when the communication unit includes a communication unit and its communication control unit, the sampling unit performs communication in response to determining that a newly acquired signal has changed from a previously acquired signal. An activation instruction is given to the communication control unit of the unit to cause the communication unit to transition from the operation stop state to the operation state.

  According to the first aspect of the present invention, only by adding a sampling unit to an existing electronic device, the external configuration function of the display information is not implemented in the control program of the electronic device, that is, the existing configuration of the electronic device is changed. The information displayed on the display unit of the electronic device can be taken out of the electronic device without any change.

  Further, according to the second aspect of the present invention, only by adding a sampling unit and a communication unit to an existing electronic device, the display information extraction function and the transmission control function are not implemented in the control program of the electronic device. The information displayed on the display unit of the electronic device can be transmitted to the outside without changing any existing configuration of the electronic device.

  Furthermore, according to the first and second aspects of the present invention, the sampling unit determines whether or not the newly acquired signal has changed from the signal acquired in the past, and when it is determined that the signal has changed, the sampling unit As a result, the communication unit is activated. For this reason, the communication unit is activated only when the content of the information displayed on the display unit of the electronic period changes, and transmits the display information, thereby transmitting all display information without omission. Compared to the case, it is possible to reduce the power consumption and transmission data amount of the communication unit.

  That is, according to the first and second aspects of the present invention, it is possible to connect to a network without modifying the electronic device and without causing an increase in cost, and moreover, the information displayed on the display unit of the electronic device is more It is possible to provide an electronic device that can be taken out and transmitted to the outside with low power consumption and communication amount, and a display information transmission method thereof.

1 is a block diagram showing a configuration of an electronic device according to a first embodiment of the present invention. FIG. 3 is a diagram showing a configuration of a segment liquid crystal display unit included in the electronic device shown in FIG. 1. The block diagram which showed the structure of the sampling part provided in the electronic device shown in FIG. 1 with the structure of the communication unit. The flowchart which shows the control procedure by the sampling part and communication unit shown in FIG. 1, and its content. FIG. 2 is a diagram illustrating an example of a configuration of a network to which the electronic device illustrated in FIG. 1 is connected. FIG. 6 is a diagram illustrating an example of information displayed on a display unit of an electronic device and a state in which the information is displayed on a mobile terminal using the network illustrated in FIG. 5. The block diagram which showed the structure of the sampling part provided in the electronic device which concerns on 2nd Embodiment of this invention with the structure of the communication unit.

Embodiments according to the present invention will be described below with reference to the drawings.
[First Embodiment]
(Constitution)
FIG. 1 is a circuit block diagram showing a configuration of an electronic apparatus according to the first embodiment of the present invention. The electronic apparatus according to the first embodiment includes an electronic measuring instrument that measures the weight of an object, and includes existing components including a load sensor 101, an amplification unit 102, a control unit 103, an operation unit 104, and a segment liquid crystal display unit 105. In addition, a sampling unit 120 is provided. In addition, a network adapter 130 and a modem 135 are externally attached to the electronic measuring instrument.

  The load sensor 101 uses a load cell that converts an applied load into an electrical signal and outputs it, and outputs an analog measurement signal having a signal value corresponding to the weight of an object placed on the weighing pan 101a. The amplifying unit 102 amplifies the low-signal-value analog measurement signal output from the load sensor 101 to a signal level necessary and sufficient for the control unit 103 to process and outputs the signal level to the control unit 103.

  The operation unit 104 includes a power ON / OFF button, a reset button, and the like. When these buttons are operated, the operation unit 104 outputs an operation signal indicating the operation content to the control unit 103.

  The control unit 103 includes a CPU (Central Processing Unit) 110, a memory 111, an A / D (Analog / Digital) converter 112, an I / O (Input / Output) interface 113, and a segment liquid crystal drive control circuit 114. The CPU 110 implements various functions of the electronic measuring instrument 100 by executing a program stored in the memory 111. The memory 111 includes a ROM that stores the above program, a RAM that is used when the program is executed, and a Flash ROM that is used to store data. The A / D converter 112 digitizes the analog measurement signal output from the amplification unit 102 and supplies it to the processing of the CPU 101. The I / O interface 113 receives the operation signal output from the operation unit 104 and supplies it to the processing of the CPU 101. The segment liquid crystal drive control circuit 104 supplies a drive signal to the segment liquid crystal display unit 105 under the control of the CPU 101.

The segment liquid crystal display unit 105 includes a 7-segment liquid crystal display device that displays a 5-digit number and a decimal point 106. FIG. 2 shows an example of the configuration of the display surface of the segment liquid crystal display unit 105.
The segment liquid crystal display unit 105 is connected to the segment liquid crystal drive control circuit 114 via three COM signal lines and twelve SEG signal lines. Then, the difference between the voltage supplied from the segment liquid crystal drive control circuit 114 via the 12 SEG signal lines and the voltage supplied from the segment liquid crystal drive control circuit 114 via the 3 COM signal lines is obtained. Thus, 12 × 3 = 36 types of drive signals are acquired, and these 36 types of drive signals are supplied to each segment liquid crystal, thereby turning on / off each segment liquid crystal.

  That is, the three COM signals output from the segment liquid crystal drive control circuit 114 are boosted for a predetermined time by pulses having different timings, and a segment signal whose voltage difference from the COM signal exceeds the threshold is input during this period. The segmented liquid crystal is actively driven to be in the ON state, and the segment liquid crystal outside this condition is in the OFF state. By repeating this operation for the three COM signal lines, the weight of the object measured by the load sensor 101 is displayed on the segment liquid crystal display unit 105.

Incidentally, the sampling unit 120, the network adapter 130, and the modem 135 are configured as follows. FIG. 3 is a block diagram showing the configuration.
As shown in FIG. 3, the sampling unit 120 is wired or connected to each of the 15 signal lines connecting the segment liquid crystal drive control circuit 114 and the segment liquid crystal display unit 105 via a branch signal line. The sampling unit 120 includes an A / D converter 121, a sampling register 122, a comparison unit 123, a holding register 124, an edge detection unit 125, and an interrupt signal generation unit 126 connected to each branch signal line.

  The A / D converter 121 takes in the analog drive signal output from the segment liquid crystal drive control unit 114 to the segment liquid crystal display unit 105 in the middle of the 15 signal lines. The analog drive signals thus taken are converted into digital signals and then output to the sampling register 122 and the comparison unit 123.

  The sampling register 122 stores three COM signals out of the 15 signals digitized by the A / D converter 121 and supplies them to the edge detection unit 125. The edge detection unit 125 detects a rising edge from each of the three COM signals, and when the rising edge is detected by any one of the COM signals, notifies the comparison unit 123 of the detection signal.

  When the edge detection signal is notified from the edge detection unit 125, the comparison unit 123 calculates a difference between the COM signal and the 12 SEG signals digitized by the A / D converter 121, and the calculation is performed. The current value is compared with the previous value held in the holding register 124 to determine whether or not the value has changed. As a result of this determination, if the value changes, the interrupt signal generation unit 126 is notified of this, and the value of the holding register 124 is updated to the value calculated this time.

  The interrupt signal generator 126 gives an interrupt signal to the CPU 131 of the network adapter 130 in response to the notification from the comparator 123. Note that the sampling unit 120 configured as described above is preferably configured as a hardware circuit in view of power consumption.

  The network adapter 130 includes a CPU 131, a memory 132, and a USB / IF 133 as shown in FIG. The memory 132 includes a ROM that stores programs, a RAM that is used when the programs are executed, and a Flash ROM that is used to store data. The memory 132 is an RTOS (Real-Time Operating System), a main control program, and a modem. A control program, an HTTP client, various communication protocol stacks, and a USB protocol stack are stored.

  The CPU 131 implements various functions of the network adapter 130 by executing a program stored in the memory 132. More specifically, by executing the main control program, the operation of the display information transmission system to be described later is realized using each program. The USB / IF 133 functions as a communication interface between the CPU 131 and the modem 135. Each component of the network adapter 130 may be configured by a one-chip system LSI, or may be configured by combining a plurality of chips.

  The modem 135 is a communication module including a USB interface and a 3G modem chip connected to the USB interface, and is connected to the USB I / F 133 of the network adapter 130. The CPU 131 receives a command output via the USB I / F 133 and performs communication with a mobile communication network (not shown). The network adapter 130 and the modem 135 may be integrated, or may be independent from each other.

(Operation)
Next, operations of the electronic measuring instrument 100 configured as described above and the network adapter 130 and the modem 135 externally attached to the electronic apparatus will be described. FIG. 4 is a flowchart showing a control procedure and control contents by the sampling unit 120 and the network adapter 130 provided in the electronic measuring instrument 100.

  When the user operates the operation unit 104 of the electronic weighing instrument 100 to turn on the power and places the measurement object on the weighing table 101a in this state, an analog measurement signal indicating the weight of the measurement object is output from the load sensor 101. Is output. The analog measurement signal is amplified by the amplification unit 102, converted to a digital signal by the A / D converter 112, and taken into the CPU 110. The CPU 110 causes the segment liquid crystal drive control circuit 114 to perform display control in order to display the weight value represented by the captured digital measurement signal. As a result, the segment liquid crystal drive control circuit 114 outputs a drive signal for segment display of the weight value, that is, three COM signals and twelve SEG signals. These signals are transmitted to the three COM signal lines. The signal is supplied to the segment liquid crystal display unit 105 through 12 SEG signal lines. Thus, the segment liquid crystal display unit 105 displays a segment representing a value representing the weight of the measurement object.

Now, in a state where such a display operation is being performed, the sampling unit 120 performs the following processing.
That is, the twelve display drive signals output from the segment liquid crystal drive control circuit 114 are converted into digital signals by the AD converter 121, respectively. Then, three COM signals among the 12 drive signals are stored in the sampling register 122 in step ST101.

  Next, in step ST102, the edge detection unit 125 determines whether an edge is detected by selecting any one of the COM signals stored in the sampling register 122. If no edge is detected as a result of this determination, the process returns to step ST102 to repeat the process of determining the presence or absence of an edge for each unselected COM signal. On the other hand, when an edge is detected in any of the COM signals, the edge detection unit 125 notifies the comparison unit 123 of this.

  First, in step ST103, the comparison unit 123 introduces a digitized segment drive signal from the A / D converter 121 based on the COM signal in which the edge is detected. Next, in step ST104, it is determined whether or not the drive signal introduced at the current timing is equal to the corresponding portion of the drive signal introduced at the previous timing held in the holding register 124. As a result of this determination, if it is not determined that they are equal, the drive signal introduced this time is held in the corresponding part of the holding register 124 in step ST105, and an update flag is set in step ST106. When the update flag has already been set, the set state is maintained.

  On the other hand, if it is determined in step ST104 that the drive signal introduced at this timing is equal to the corresponding portion of the drive signal introduced at the previous timing held in the holding register 124, the comparison is made. Unit 123 does not execute steps ST105 and ST106, and proceeds to step ST107.

  Subsequently, in step ST107, the comparison unit 123 determines whether or not the processing by the above steps ST102 to ST104 (up to step ST106 in some cases) for all the COM signals is completed. And when the drive signal corresponding to the COM signal which has not performed the said process still remains, the process by step ST102-ST104 mentioned above or the process by step ST102-ST106 is each performed with respect to this unprocessed drive signal. repeat.

  If it is determined in step ST107 that the processing for the drive signals corresponding to all the COM signals is completed, the comparison unit 123 next determines whether or not the update flag is set in step ST108. If the update flag is not set, it is determined that none of the drive signals corresponding to all the COM signals have changed from the previous time, and the process returns to step ST101.

  On the other hand, it is assumed that the update flag is set. In this case, the comparison unit 123 determines that any one of the drive signals corresponding to each COM signal has changed from the previous time, and notifies the interrupt signal generation unit 126 to that effect. Upon receiving the notification, the interrupt signal generation unit 126 transmits an interrupt signal to the CPU 131 of the network adapter 130 in step ST109. The CPU 131 of the network adapter 130 that has received this interrupt signal returns from the sleep state to the normal operation state in step ST110. In step ST111, the display driving signal held from the holding register 124 is read and held in the memory 132. Subsequently, in step ST113, the modem 135 is activated and connected to the network, and the display drive signal held in the memory 132 is transmitted to the network in step ST114. Thus, new display drive signal data whose value has changed is transmitted to the network.

  Note that the update flag is reset by step ST112 when the network adapter 130 confirms that the display drive signal has been read from the holding register 124 in step ST111.

(Function and effect)
As described above in detail, in the first embodiment, the existing electronic measuring instrument 100 is provided with the sampling unit 120, and the network adapter 130 and the modem 135 are externally attached to realize the communication function. It is not necessary to add a complicated communication program to the program executed by the control unit 103, and it is not necessary to add a program for outputting measured data. Therefore, it is possible to add a communication function to the electronic measuring instrument 100 with low cost and low development man-hours.

  Further, only when the information displayed on the segment liquid crystal display unit 105 of the electronic measuring instrument 100 changes, the sampling unit 120 notifies the CPU 131 (communication control unit) of the network adapter 130 of an activation instruction. The CPU 131 (communication control unit) of the network adapter 130 controls the modem 135 (communication unit) by changing its own operation state from the sleep state to the normal operation state in response to receiving the activation instruction, and the sampling unit 120. Transmits the information for display acquired from the signal line of the segment liquid crystal drive control circuit 114. Therefore, when the display content of the segment liquid crystal display unit 105 (display unit) is not changed, the communication operation is not performed. Therefore, the same information is not transmitted many times in a state in which the displayed information is not changed, and the display information of the electronic measuring instrument can be transmitted with less power consumption and traffic.

(Application example)
The following can be considered as specific application examples of the electronic measuring instrument 100 described above. In this application example, the measurement data measured by the electronic measuring instrument 100 is transmitted to and stored in the cloud system via the mobile communication network and the Internet, and the stored measurement data can be browsed by the portable terminal. Is.

  FIG. 5 is a schematic configuration diagram of the information system 200. In this figure, this information system 200 connects an electronic measuring instrument 100 to a mobile communication network 153 via base stations 151 and 152 using a network adapter 130 and a modem 135, and then via a gateway 154 and the Internet 155. Can be connected to the cloud system 156. At the same time, the mobile terminal 150 can be connected to the mobile communication network 153 via the base stations 151 and 152 and then connected to the service server 161 via the gateway 154 and the Internet 155. As the mobile terminal 150, for example, a smart phone, a mobile phone, a tablet terminal, or a personal computer is used.

  With this configuration, when the user measures his / her own body weight, body fat percentage, etc. using the electronic measuring instrument 100, the electronic measuring instrument 100 supplies the segment liquid crystal drive control circuit 114 to the segment liquid crystal display unit 105. The display drive signal indicating the measurement result changes, and this change is detected by the sampling unit 120 and notified to the network adapter 130. Upon receiving this notification, the network adapter 130 acquires the display drive signal after the change from the sampling unit 120, and data representing the acquired display drive signal is transmitted from the modem 135 to the base stations 151 and 152 and the mobile communication network 153. And sent to the cloud system 156 via the gateway 154 and the Internet 155.

  The cloud system 156 receives the display drive signal data transmitted from the electronic measuring instrument 100 by the data receiving unit 157, and the data secondary analysis unit 158 uses the display drive signal data as display data in the portable terminal 150 or the like. After being converted into a displayable form, it is stored in the data store unit 160. At this time, the display data is stored in a state associated with the identification information of the electronic meter 100 of the transmission source or the identification information and attribute information of the user, a time stamp indicating the measurement date and time, and the like. The form of data stored in the data store unit 160 is information including characters or image data such as text data.

  In this state, it is assumed that the user operates the mobile terminal 150 to activate the browser and browse the measurement data of himself or another user registered in advance. Then, a browsing request is sent from the mobile terminal 150 to the service server 161 via the base stations 151 and 152, the mobile communication network 153, the gateway 154, and the Internet 155. Upon receiving this browsing request, the service server 161 searches the display data of the corresponding measurement result via the data access unit 159 of the cloud system 156, and downloads the searched display data to the requesting mobile terminal 150. . For this reason, the downloaded display data is displayed on the portable terminal 150.

  Thus, on the mobile terminal 150, information indicating the measurement result displayed on the segment liquid crystal display unit 105 of the electronic measuring instrument 100 is displayed in almost real time. 6A shows an example of information indicating the measurement result displayed on the segment liquid crystal display unit 105 of the electronic measuring instrument 100, and FIG. 6B shows information indicating the measurement result displayed on the portable terminal 150 almost simultaneously. An example is shown.

[Other Embodiments]
The present invention is not limited to the above embodiment, and various modifications as described below are possible. For example, in the above-described embodiment, the case where the electronic measuring device 100 is used as an electronic device has been described as an example. However, the present invention can be applied to any device as long as the electronic device includes a display unit and a display control circuit thereof. The display unit is not limited to the 7-segment liquid crystal display unit, and can be applied to a segment LED display unit, a display for displaying bitmap data, and the like. In addition, when using a segment LED display part, what is necessary is just to set it as the structure which samples the signal output from the output terminal of the control part of a apparatus or a control circuit, or the output terminal of a segment LED driver IC, switching LED to light. In the case of dynamic driving, a driving signal may be acquired for each LED according to the switching signal. Furthermore, the display unit may be a general-purpose LED.

  Further, in the above-described embodiment, the case where the electronic device 100 transmits display information to the cloud system 156 using the mobile communication modem 135 compatible with, for example, the 3G standard is exemplified. However, the present invention is not limited thereto. For example, as shown in FIG. 7, the network adapter 140 is provided with a CPU 141, a memory 142, and a Bluetooth (registered trademark) baseband unit 143, and is held in the memory 142 under the control of the CPU 141. The display drive signal data may be transmitted from the Bluetooth baseband unit 143 to another Bluetooth terminal. However, in this case, the display information acquired from the electronic device 100 is appropriately rendered and displayed on the mobile terminal 150 in order to construct display data from the ON / OFF states of the individual segments of the 7-segment liquid crystal display unit. An application program is required to do this.

  In addition, as a wireless interface for transmitting display information of the electronic device to a network or another terminal, other wireless data such as a wireless local area network (LAN), long term evolution (LTE), WiMAX (registered trademark), etc. A wireless interface adopting a communication standard can be applied.

  Further, in the above embodiment, the case where the network adapter 130 and the modem 135 are externally attached to the electronic device 100 has been described as an example. However, the electronic device 100 is configured to incorporate the network adapter 130 and the modem 135 together with the sampling unit 120. Also good. At that time, the sampling unit, the network adapter, and the modem may be incorporated as separate chips, but may be incorporated as a one-chip LSI.

Furthermore, in the information system 200 of the above-described embodiment, the case where the display information of the electronic device such as the electronic measuring instrument 100 is browsed as it is with the portable terminal 150 such as a smart phone is illustrated, but the present invention is not limited to this. For example, when a measuring device such as an electronic temperature / humidity meter, a sphygmomanometer, or an electrocardiograph is used as the electronic device, the service server 161 displays a time series of measurement results based on display information stored in the cloud system 156. Graph data or statistical data indicating a change may be created, and the created graph data or statistical data may be downloaded from the service server 161 to the mobile terminal 150 and displayed.
Moreover, as a terminal for displaying display information of the electronic device, a stationary personal computer or a television receiver can be applied in addition to the portable terminal.

  In addition, when the operation state of the electronic device can be grasped from the display information, a configuration for browsing the state transition of the electronic device on the mobile terminal, a configuration for notifying the terminal when the electronic device is in an abnormal state, It may be configured to notify the electronic device that it is necessary to supply maintenance or replenishment.

  In short, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in each embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  DESCRIPTION OF SYMBOLS 100 ... Electronic measuring device, 101 ... Load sensor, 101a ... Weighing table, 102 ... Amplifier, 103 ... Control part, 104 ... Operation part, 105 ... Segment liquid crystal display part, 110 ... CPU, 111 ... Memory, 112 ... A / D Converter 113 113 I / O interface 114 segment liquid crystal drive control circuit 120 sampling unit 121 A / D converter 122 sampling register 123 comparison unit 124 holding register 125 edge detection unit 126: Interrupt signal generation unit, 130, 140 ... Network adapter, 131, 141 ... CPU, 132, 142 ... Memory, 133 ... USB / IF, 135 ... Modem, 143 ... Bluetooth baseband unit, 150 ... Mobile terminal, 151 152 ... Base station, 153 ... Mobile communication network, 154 ... Gateway, 55 ... Internet, 156 ... cloud system, 157 ... data receiving section, 158 ... data secondary analysis unit, 159 ... data access unit, 160 ... data store unit, 161 ... service server.

Claims (9)

A display for displaying information;
A display control unit that supplies a signal necessary for displaying the information to the display unit via a signal line;
A branching connection to the signal line, and a sampling unit connected to an external communication unit,
The sampling unit
Means for taking in a signal supplied from the display control unit to the display unit from the signal line;
Each time the signal is captured, means for comparing the newly captured signal with a signal captured in the past to determine the presence or absence of the change;
And a control unit that activates the external communication unit and transmits the newly acquired signal when it is determined that the newly acquired signal has changed from a previously acquired signal. Electronics. When the external communication unit includes a communication unit and its communication control unit,
The control unit of the sampling unit shifts the communication control unit of the communication unit from a sleep state to a normal operation state when it is determined that the newly acquired signal has changed from a previously acquired signal. The electronic device according to claim 1. When the external communication unit includes a communication unit and its communication control unit,
The control unit of the sampling unit gives an activation instruction to the communication control unit of the communication unit and activates the communication unit when it is determined that the newly acquired signal has changed from the previously acquired signal. The electronic device according to claim 1. A display for displaying information;
A display control unit that supplies a signal necessary for displaying the information to the display unit via a signal line;
A communication unit comprising a communication unit and its communication control unit;
A branching connection to the signal line, and a sampling unit connected to a communication control unit of an external communication unit,
The sampling unit
Means for taking in a signal supplied from the display control unit to the display unit from the signal line;
Each time the signal is captured, means for comparing the newly captured signal with a signal captured in the past to determine the presence or absence of the change;
A means for giving an activation instruction to the communication unit when it is determined that the newly acquired signal has changed from a previously acquired signal;
The communication unit is
An electronic device that is activated when an activation instruction is received from the sampling unit and that receives and transmits the newly captured signal from the sampling unit. The sampling unit gives a start instruction to the communication control unit of the communication unit when it is determined that the newly acquired signal has changed from a signal acquired in the past,
The electronic device according to claim 4, wherein the communication control unit of the communication unit shifts its own operation state from a sleep state to a normal operation state when receiving an activation instruction from the sampling unit. The sampling unit gives a start instruction to the communication control unit of the communication unit when it is determined that the newly acquired signal has changed from a signal acquired in the past,
The electronic device according to claim 4, wherein the communication control unit of the communication unit transitions the communication unit from an operation stop state to an operation state when receiving a start instruction from the sampling unit. A display unit for displaying information, a display control unit for supplying a signal necessary for displaying the information to the display unit via a signal line, a communication unit including a communication unit and the communication control unit, A display information transmission method for an electronic apparatus comprising a sampling unit connected to a communication control unit of an external communication unit while being branched and connected to the signal line,
The sampling unit takes in a signal supplied from the display control unit to the display unit from the signal line,
Each time the sampling unit captures the signal, the newly captured signal is compared with a signal captured in the past to determine whether there is a change,
When the sampling unit determines that the newly acquired signal has changed from the previously acquired signal, a process of giving an activation instruction to the communication unit;
A display information transmission method comprising: a step of starting when the communication unit receives a start instruction from the sampling unit, and acquiring and transmitting the newly acquired signal from the sampling unit. The process of giving the activation instruction gives an activation instruction to the communication control unit of the communication unit when it is determined that the newly acquired signal has changed from the previously acquired signal,
8. The display information transmitting method according to claim 7, wherein the transmitting step includes a step of transitioning its own operation state from a sleep state to a normal operation state when an activation instruction is received from the sampling unit. The process of giving the activation instruction gives an activation instruction to the communication control unit of the communication unit when it is determined that the newly acquired signal has changed from the previously acquired signal,
8. The display according to claim 7, wherein the transmitting step includes a step of causing the communication control unit to transition the communication unit from an operation stop state to an operation state when an activation instruction is received from the sampling unit. Information transmission method.

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