JP4812738B2 - Remote control device - Google Patents

Description

  The present invention relates to an input / output device and a remote control device provided in an electrical apparatus such as a household appliance or an air conditioner.

  In addition to the wired remote controller connected to the indoor unit via a communication line, the conventional air conditioner is equipped with a wireless remote controller that can operate the indoor unit (operation such as operation and stop) through the wired remote controller. There is. After operating the indoor unit with one of these two types of remote control and then operating with the other remote control, the one operated later is selected preferentially. (For example, refer to Patent Document 1).

JP-A-10-115449

  The above-described conventional wired remote controller of an air conditioner is provided with only receiving means for receiving an infrared signal from a wireless remote controller, and therefore cannot handle a popular USB memory or the like. Although this point can be solved by providing an input / output terminal, there are electrical devices with a power supply voltage of 200 V in air conditioners and household appliances, preventing electric shock of the user due to insulation breakdown of the power supply unit, In order to prevent the abnormal current from flowing to the external device through the input / output terminals, it is necessary to take measures such as having a predetermined requirement structure so that the user does not touch the metal such as terminals or reinforcing the insulation of the power supply part, There was a problem of high costs. In addition, there is a problem that structural measures cannot be taken in many cases where the structure of the connection portion such as a USB or 10BASE-T standard LAN is specified, and structural measures cannot be taken in many cases.

  The present invention has been made to solve the above-described problems, and provides an input / output device and a remote control device that can prevent an electric shock and can be connected to a USB, LAN, or the like without reinforcing the insulation of a power supply unit. With the goal.

A remote control device according to the present invention is a remote control device having an I / F unit in a remote control main body and connected to an electric device connected to a commercial power supply via a power supply line and a communication line. A power supply circuit having a coil at the end and a communication circuit having a coil at the output end, and the I / F unit has a resonance circuit including a coil electromagnetically coupled to the coil of the power supply circuit and a capacitor, Power receiving means for making the AC voltage generated in the resonant circuit by a predetermined constant voltage by electromagnetic induction from the coil, a coil electromagnetically coupled to the coil of the communication circuit, and a resonance circuit consisting of a capacitor, comprising communication means for transmitting and receiving signals by generating a high-frequency magnetic field between the coil and the resonant circuit, the output section for the transmission and reception of an external device signal, the control means in the remote controller main body When to perform communication between the input and output unit and the electric device based on the input of the switch operation, thereby receiving the AC voltage generated in the resonance circuit to the power receiving unit by operating the power supply circuit.

According to the present invention, the remote control body includes a power feeding circuit having a coil and a communication circuit having a coil, and the I / F unit includes a coil electromagnetically coupled to the coil of the power feeding circuit and a resonance circuit including a capacitor. Means, and a communication means having a resonance circuit comprising a coil electromagnetically coupled to the coil of the communication circuit and a capacitor. As a result, it is possible to insulate the I / F unit from the power source of the remote control body , and therefore, it is not necessary to take measures for strengthening the insulation of the power source, thereby preventing electric shock of the user due to insulation breakdown of the power source of the remote control body. be able to. Further, since the insulating the I / F section as described above from the remote controller main body, that has become possible to connect such as a USB or a LAN is an input-output unit.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing a configuration example of an input / output device according to Embodiment 1 of the present invention.
In the figure, for example, electric appliances for household appliances such as rice cookers and electromagnetic cookers (hereinafter referred to as “apparatus main body 1”) include a power supply circuit 11 connected to a commercial power source, a microcomputer 12, and an apparatus main body function unit. 13, a communication circuit 14 having a transmission / reception unit 15, a power supply circuit 16 having a power supply unit 17, and the input / output device 2. The power supply circuit 11 generates a predetermined constant voltage when commercial power is applied, and supplies the constant voltage to the microcomputer 12, the device main body function unit 13, the communication circuit 14, and the power supply circuit 16. When the power supply is turned on, the microcomputer 12 operates the power supply circuit 16 to generate an AC magnetic field from the power supply unit 17 so that an AC voltage is received on the input / output device 2 side. The device main body function unit 13 is a circuit unit for realizing various functions provided in the device main body 1 and is executed based on control from the microcomputer 12.

  The input / output device 2 is disposed to face the input unit 21 having various operation switches (not shown), the microcomputer 22, the output unit 23 having an LED and a liquid crystal display (not shown), and the transmission / reception unit 15. A communication circuit 24 (communication means) having a transmission / reception unit 25 and a power supply circuit 26 (power reception means) having a power reception unit 27 arranged to face the power supply unit 17 are configured. When an AC voltage is generated by induction of an AC magnetic field in the power receiving unit 27, the power supply circuit 26 generates a predetermined constant voltage from the AC voltage and supplies the constant voltage to the input unit 21, the microcomputer 22, the output unit 23, and the communication circuit 24, respectively. .

Here, the configuration of the power feeding circuit 16 and the power supply circuit 26 will be described with reference to FIG. FIG. 19 is a circuit diagram showing the configuration of the power supply circuit of the device main body and the power supply circuit of the input / output device.
In the figure, the power supply circuit 16 of the device main body 1 has a power supply unit 17 of a series resonance circuit in which a capacitor C2 and a coil L1 are connected in series at the output end, and is a smoothing connected between the output ends of the power supply circuit 11. The smoothing circuit 16a includes a capacitor C1 and a full-bridge inverter 16b. In the inverter 16b, the switching elements Tr1 and Tr4 are turned ON, the switching elements Tr2 and Tr4 are turned OFF, and then the switching elements Tr1 and Tr4 are turned OFF and the switching elements Tr2 and Tr4 are turned ON by the control of the microcomputer 12. This operation is repeated at the period of the resonance frequency of the series resonance circuit to supply an AC current to the power feeding unit 17 and generate an AC magnetic field in the coil L1 of the power feeding unit 17.

The power supply circuit 26 of the input / output device 2 includes a power receiving unit 27 of a parallel resonance circuit in which a coil L2 and a capacitor C3 are connected in parallel at an input end. The power receiving unit 27 induces an alternating magnetic field on the power feeding unit 17 side. Diode 26a that rectifies the AC voltage generated by the capacitor, a smoothing circuit 26b that includes a capacitor C4 and a smoothing capacitor C5, a power supply stabilization circuit 26c that includes a power supply regulator IC, a capacitor C6, and a smoothing capacitor C7, and this power stabilization. And a connector 26d provided at the output end of the circuit 26c. Smoothing circuit 26b described above is by the capacitor C4 and the smoothing capacitor C5, rectified voltage from the diode 26a for smoothing. The power supply stabilization circuit 26c stabilizes the output voltage of the smoothing circuit 26b with the power supply regulator IC, and suppresses voltage fluctuation due to a sudden load fluctuation or the like with the capacitor C6 and the smoothing capacitor C7.

  The coil L1 of the power feeding unit 17 and the coil L2 of the power receiving unit 27 are separated, for example, in the range of several mm to several centimeters. The intervals are the injected power of the power feeding circuit 16, the power consumption on the input / output device 2, and the power feeding unit 17. And adjustment of the structure of the power receiving unit 27 (for example, the areas of the coils L1 and L2). As the coils L1 and L2 of the power feeding unit 17 and the power receiving unit 27, generally, an air core coil or a material in which a magnetic material is arranged on a part of an end surface of the air core coil or a conductor wound around a ferrite material is used. Has been. In addition, a flexible sheet-like conductor circuit or a sheet-like magnetic material arranged on one side of the sheet-like conductor circuit may be used.

Next, the configuration of the communication circuits 14 and 24 will be described with reference to FIG. FIG. 20 is a circuit diagram showing a configuration of each communication circuit of the device main body and the input / output device.
The communication circuit 14 of the device main body 1 includes a transmission / reception unit 15 of a parallel resonance circuit in which a capacitor and a coil are connected in parallel, a carrier oscillation unit 14a that oscillates a high-frequency signal, and a high-frequency signal from the carrier oscillation unit 14a. Is ANDed with the data from the microcomputer 12 to perform amplitude shift keying (ASK), and the output signal of the AND circuit 14b is amplified to a predetermined power to excite the transmission / reception unit 15 and transmit / receive An amplifying circuit 14c for generating a high-frequency magnetic field from the coil of the unit 15, a detection circuit 14d for smoothing a high-frequency AC voltage generated in the transmission / reception unit 15 by induction of the high-frequency magnetic field on the transmission / reception unit 25 side and removing a high-frequency component, and a detection circuit 14d The comparator 14e compares the signal from the reference value with the result and outputs the result (binary value) to the microcomputer 12 through the buffer 141. It has been.

  Similarly to the above, the communication circuit 24 of the input / output device 2 includes a transmission / reception unit 25 of a parallel resonance circuit in which a capacitor and a coil are connected in parallel, a carrier oscillation unit 24a that oscillates a high-frequency signal, and this carrier oscillation An AND circuit 24b that ANDs the high-frequency signal from the unit 24a with the data from the microcomputer 22 to perform amplitude shift keying (ASK), and an output signal from the AND circuit 24b is amplified to a predetermined power to be transmitted and received. And a detection circuit for smoothing the high-frequency AC voltage generated in the transmission / reception unit 25 by induction of the high-frequency magnetic field on the transmission / reception unit 15 side and removing the high-frequency component. The comparator 24d compares the signal from the detection circuit 24d with a reference value and outputs the result (binary value) to the microcomputer 22 through the buffer 241. It is composed of a 4e.

  Similarly to the above, the coils of the communication circuits 14 and 24 are spaced apart from each other in the range of several millimeters to several centimeters. The intervals are the signal transmission / reception level, reception sensitivity adjustment, and the structure of each coil of the transmission / reception units 15 and 25. Determined by adjustment. As the coil, generally, an air core coil, a coil in which a magnetic material is arranged on a part of an end surface of the air core coil, or a conductor wound around a ferrite material is used.

  In the electrical device configured as described above, when commercial power is applied to the power supply circuit 11 of the device main body 1, as described above, the power supply circuit 11 generates a predetermined constant voltage, Are supplied to the microcomputer 12, the device main body function unit 13, the communication circuit 14, and the power feeding circuit 16, respectively. The microcomputer 12 operates the power feeding circuit 16 when the power is turned on. That is, the inverter 16b of the power feeding circuit 16 is driven, an alternating current is supplied to the power feeding unit 17, and an alternating magnetic field is generated in the coil L1. When an AC voltage is generated in the coil L2 of the power receiving unit 27 of the input / output device 2 due to the induction of the AC magnetic field, the power supply circuit 26 of the input / output device 2 rectifies and smoothes the AC voltage from the power receiving unit 27, A constant voltage is supplied to the input unit 21, the microcomputer 22, the output unit 23, and the communication circuit 24 in the input / output device 2 so as to be operable. At this time, the output unit 23 lights an LED (not shown) to indicate that power is applied.

  When a signal based on a switch operation is output from the input unit 21 to the microcomputer 22 while power is supplied to the input / output device 2, the microcomputer 22 sends data based on the signal from the input unit 21 to the communication circuit 24. Output and operate. At this time, the communication circuit 24 ANDs the high frequency signal of the carrier oscillating unit 24a with the data from the microcomputer 22 to perform amplitude shift modulation, amplifies it, and excites the transmitting / receiving unit 25. Generate a magnetic field. When a high-frequency AC voltage is generated in the transmission / reception unit 15 of the device main body 1 by the induction of the high-frequency magnetic field, the communication circuit 14 of the device main body 1 smoothes the high-frequency AC voltage from the transmission / reception unit 15 to remove the high-frequency component, and the input unit The data from 212 is extracted and binarized, and is output to the microcomputer 12 of the device body 1 through the buffer 141.

  When data from the communication circuit 14 is input, the microcomputer 12 controls the device body function unit 13 according to the data. When a signal whose operation state has changed is sent from the device main body function unit 13 by this control, data based on the signal is output to the communication circuit 14 to be operated, and the high frequency magnetic field is transmitted from the transmission / reception unit 15 in the same manner as described above. generate. At this time, the transmission / reception unit 25 of the input / output device 2 generates a high-frequency AC voltage by induction of the high-frequency magnetic field and outputs the high-frequency AC voltage to the communication circuit 24. The communication circuit 24 smoothes the high-frequency AC voltage to remove the high-frequency component, extracts the data, binarizes it, and outputs it to the microcomputer 22 of the input / output device 2 through the buffer 241. The microcomputer 22 outputs the data from the device main body function unit 13, that is, the operation state changed by the execution of the device main body function unit 13 to the output unit 23 and displays it on the liquid crystal display.

  As described above, according to the first embodiment, data is transmitted / received to / from the communication circuits 14 and 24 of the device body 1 and the input / output device 2 using the transmission / reception units 15 and 25 of the parallel resonant circuit, respectively. The power is supplied from the power supply circuit 16 to the power supply circuit 26 using the power supply unit 17 of the series resonance circuit for the power supply circuit 16 of the device body 1 and the power receiving circuit 27 of the parallel resonance circuit for the power supply circuit 26 of the input / output device 2. As a result, it is possible to insulate the input / output device 2 from the power source of the device main body 1, and therefore it is not necessary to take measures for strengthening the insulation of the power source. The user's electric shock can be prevented.

  In the first embodiment, data transmission / reception by the amplitude shift keying method is shown as an example in each of the communication circuits 14 and 24 of the device main body 1 and the input / output device 2, but a baseband method or phase shift keying is used. Data transmission / reception may be performed using a (PSK) system, a frequency shift keying (FSK) system, a quadrature amplitude modulation (QAM) system, or the like.

  In addition, coils are used for power supply and communication, respectively, but power supply is intermittently performed, communication is performed during idle time, and the power supply frequency itself is modulated with data so that the coil is shared. May be. Further, although the microcomputer 12 is used for the device body 1, logic such as an FPGA (Field Programmable Gate Array) or other control means may be used.

  In the first embodiment, the input / output device 2 including the input unit 21 and the output unit 23 is exemplified. However, as illustrated in FIG. 2, the input / output device 2 including a UART (Universal Asynchronous Receiver Transmitter) 28a. But it ’s okay. This UART converts a serial signal from an external device such as a personal computer (not shown) into a parallel signal and transfers it to the microcomputer 22, and converts a parallel signal from the microcomputer 22 into a serial signal to the external device. The device to transfer. 3 may be a LAN connection unit 28b for connecting to a 10Base-T LAN, or a USB (Universal Serial Bus) connection unit 28c may be provided as shown in FIG. Transmission and reception may be performed. Further, a memory card I / F unit 28d may be used as shown in FIG. In this case, data is read from the memory card attached to the memory card I / F unit 28d and transferred to the microcomputer 12 of the device main body 1 or data from the device main body 1 is recorded on the memory card. Further, as shown in FIG. 6, data may be transmitted / received to / from an external device using a PIO (Parallel input / output) 28e. These can be used because the input / output device 2 is insulated from the power source of the device main body 1 and can be provided in the input / output device 2 without taking any measures in structure.

Embodiment 2. FIG.
FIG. 7 is a block diagram showing a configuration example of a remote control device according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the same or equivalent part as Embodiment 1 demonstrated in FIG. 1, and description is abbreviate | omitted.
In the figure, a remote control device (hereinafter referred to as “remote control body 4”) includes, for example, a power reception circuit 41 connected via a power line to a power supply circuit 11 of a device body 1 that is an air conditioner, and various switches (not shown). 2), a microcomputer 43 connected to the device main body function unit 13 of the device main body 1 via a communication line, an output unit 44 having an LED or a liquid crystal display (not shown), and the transmission / reception unit 15 Communication circuit 14 having power supply, power supply circuit 16 having power supply unit 17, and I / F (interface) unit 3.

  The power receiving circuit 41 generates a predetermined constant voltage when a voltage is applied from the power supply circuit 11 of the device main body 1 and supplies the constant voltage to the input unit 42, the microcomputer 43, the output unit 44, the communication circuit 14, and the power feeding circuit 16. . The output unit 44 turns on the LED when power is applied, and displays that the power source is turned on in the remote control body 4. The microcomputer 43 will be described in detail when explaining the operation. The I / F unit 3 includes a microcomputer 22, a communication circuit 24 (communication means) having a transmission / reception unit 25 arranged to face the transmission / reception unit 15, and a power supply circuit having a power reception unit 27 arranged to face the power supply unit 17. 26 (power receiving means) and an input / output unit 31 for transferring a signal from an external device (not shown) such as a personal computer to the microcomputer 22 and transferring a signal from the microcomputer 22 to the external device.

  In the remote control device configured as described above, for example, when a signal based on a switch operation is output from the input unit 42 of the remote control main body 4 to the microcomputer 43, the microcomputer 43 is connected to the device based on the signal from the input unit 42. When the main body function unit 13 is controlled and a signal indicating the current operation state is input from the device main body function unit 13 by this control, the signal is read and the current operation state by the device main body function unit 13 is output. 44 is displayed on the liquid crystal display.

Next, an operation when the operation state of the device main body function unit 13 is transferred from the input / output unit 31 to the external device based on the operation of the remote control main body 4 will be described.
When the microcomputer 43 of the remote control main body 4 detects an instruction to transfer data indicating the operation state of the device main body function unit 13 to the external device through the input unit 42, a data read command is sent to the device main body function unit 13 according to the instruction. When necessary data is input via the communication line in response to the command, the power feeding circuit 16 is operated to generate an alternating magnetic field in the coil L1 of the power feeding unit 17. When an AC voltage is generated in the coil L2 of the power receiving unit 27 of the I / F unit 3 by the induction of the AC magnetic field, the power circuit 26 of the I / F unit 3 generates a predetermined constant voltage from the AC voltage of the power receiving unit 27. , Supplied to the microcomputer 22, the communication circuit 24, and the input / output unit 31, respectively.

  Further, the microcomputer 43 of the remote control main body 4 operates the power supply circuit 16 and then outputs the data acquired from the device main body function unit 13 to the communication circuit 14 to perform amplitude shift modulation of the high frequency signal (carrier signal) and transmit / receive A high frequency magnetic field is generated from the unit 15. When a high-frequency AC voltage is generated in the transmission / reception unit 25 of the I / F unit 3 by the induction of the high-frequency magnetic field, the communication circuit 24 of the I / F unit 3 smoothes the high-frequency AC voltage of the transmission / reception unit 25 and removes a high-frequency component. The data of the device main body function unit 13 is extracted and binarized, and is output to the microcomputer 22 of the I / F unit 3 through the buffer 141. The microcomputer 22 outputs the data from the device main body function unit 13 to the input / output unit 31 according to a predetermined procedure and transfers it to the external device.

Next, an operation when data is input from the input / output unit 31 to the device main body function unit 13 based on the operation of the remote control main unit 4 will be described. This operation assumes an external operation or a change of parameters for the operation.
When the microcomputer 43 of the remote control body 4 detects an instruction to transfer data from an external device to the device body function unit 13 through the input unit 42, it operates the power supply circuit 16 and generates an AC magnetic field in the coil L 1 of the power supply unit 17. Let Next, in accordance with an instruction from the input unit 42, a data reception command is output to the communication circuit 14 to be operated, and a high frequency magnetic field is generated from the transmission / reception unit 15.

  On the other hand, the power supply circuit 26 of the I / F unit 3 generates a predetermined constant voltage from the AC voltage when an AC voltage is generated in the coil L2 of the power receiving unit 27 by induction of an AC magnetic field from the power supply unit 17, and the microcomputer 22, the communication circuit 24 and the input / output unit 31 are supplied. At this time, the communication circuit 24 smoothes the high-frequency AC voltage generated in the transmission / reception unit 25 by induction of the high-frequency magnetic field of the transmission / reception unit 15 to remove the high-frequency component, and issues a data reception command issued from the microcomputer 43 of the remote control body 4. The extracted data is binarized and output to the microcomputer 22 through the buffer 141.

  When the microcomputer 22 of the I / F unit 3 detects a data reception command, it reads the received data from the input / output unit 31 according to a predetermined procedure, outputs the received data to the communication circuit 24, and amplitude-shift-modulates the high-frequency signal. A high frequency magnetic field is generated from 25. When a high-frequency AC voltage is generated in the transmission / reception unit 15 of the remote control body 4 by the induction of the high-frequency magnetic field, the communication circuit 14 of the remote control body 4 smoothes the high-frequency AC voltage of the transmission / reception unit 15 and removes the high-frequency component. The received data from 31 is extracted and binarized, and is output to the microcomputer 43 of the remote control body 4 through the buffer 141. The microcomputer 43 outputs the received data to the device main body function unit 13, and the device main body function unit 13 controls its own state based on the received data and changes internal parameters.

  As described above, according to the second embodiment, data is transmitted / received to / from each of the communication circuits 14 and 24 of the remote control main body 4 and the I / F unit 3 using the transmission / reception units 15 and 25 of the parallel resonance circuit, respectively. Further, power is supplied from the power supply circuit 16 to the power supply circuit 26 using the power supply unit 17 of the series resonance circuit for the power supply circuit 16 of the remote control body 4 and the power receiving circuit 27 of the parallel resonance circuit for the power supply circuit 26 of the I / F unit 3. As a result, it is possible to insulate the I / F unit 3 from the power source of the remote control main body 4, and therefore it is not necessary to take measures for strengthening the insulation of the power source. Damage to the I / F unit 3 due to dielectric breakdown and inflow of abnormal current to the external device through the input / output unit 31 can be suppressed.

  In the second embodiment, when the data of the device main body function unit 13 is transferred from the input / output unit 31 to the external device, and the data received by the input / output unit 31 is transferred to the device main body function unit 13. In addition, the power supply circuit 16 of the remote control body 4 is operated so that the I / F unit 3 receives power. However, the power supply to the I / F unit 3 is periodically or constantly performed, and the microcomputer 22 inputs and outputs the input / output unit. 31 may be accessed to determine the presence or absence of data, and transmission / reception may be performed according to the contents of the data.

  In addition, the transmission / reception of data by the amplitude shift keying method is shown as an example in the communication circuits 14 and 24 of the remote control body 4 and the I / F unit 3, but the baseband method, the phase shift keying (PSK) method, or the frequency Data transmission / reception may be performed using a shift keying (FSK) method, a quadrature amplitude modulation (QAM) method, or the like.

  In addition, coils are used for power supply and communication, respectively, but power supply is intermittently performed, communication is performed during idle time, and the power supply frequency itself is modulated with data so that the coil is shared. May be. Further, although the microcomputer 43 is used for the remote control body 4, logic such as an FPGA (Field Programmable Gate Array) or other control means may be used.

  In the second embodiment, the input / output unit 31 of the I / F unit 3 is not specified. However, as shown in FIG. 8, a UART (Universal Asynchronous Receiver Transmitter) 28a is used for the input / output unit 31. For example, data may be transmitted / received to / from an external device such as a personal computer (not shown). 9 may be a LAN connection unit 28b connected to a 10Base-T LAN, or a USB (Universal Serial Bus) connection unit 28c may be provided to communicate with an external device as shown in FIG. You may make it do. Further, as shown in FIG. 11, the memory card I / F unit 28d may be used as the input / output unit 31, and further, as shown in FIG. 12, a PIO (Parallel input / output) 28e is used to exchange data with an external device. You may enable it to transmit / receive. These can be used because the I / F unit 3 is insulated from the power source of the remote control main body 4 and can be provided in the I / F unit 3 without taking any measures in structure.

Embodiment 3 FIG.
In the first embodiment, data is transmitted / received using the transmission / reception units 15 and 25 of the parallel resonance circuit in which the capacitor and the coil are connected in parallel. However, in the third embodiment, data is transmitted using light. Will be described below with reference to FIG.

FIG. 13 is a block diagram showing a configuration example of a remote control device according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 2 demonstrated in FIG. 7, or an equivalent, and description is abbreviate | omitted.
In the figure, the communication circuit 32 (communication means) of the I / F unit 3 and the communication circuit 46 of the remote control body 4 include transmission / reception units 33 and 45 made of, for example, photocouplers. When transmitting / receiving data, the transmission / reception units 33 and 45 amplitude-shift-modulate a high-frequency signal (carrier signal) with data, amplify it to a predetermined power, and convert it into light by a light emitting diode. When receiving data, the light from the light emitting diode is converted into a signal by a phototransistor, the signal is smoothed to remove high frequency components, the data is extracted and binarized, and is sent to the microcomputer 22 or 43 through a buffer, respectively. Output.

  Next, the operation of the remote control device according to Embodiment 3 will be described. The operation based on the switch operation of the input unit 42 of the remote control main body 4 is the same as that in the second embodiment, and is therefore omitted. Also, an operation of supplying power from the remote control body 4 to the I / F unit 3 when the operation state of the device main body function unit 13 is transferred from the input / output unit 31 to the external device based on the operation of the remote control body 4, and the remote control body The operation of supplying power from the remote controller body 4 to the I / F unit 3 when inputting data from the input / output unit 31 to the device body function unit 13 based on the operation of 4 is the same as in the second embodiment. Omit.

  When the microcomputer 43 of the remote control main body 4 detects an instruction to transfer data indicating the operation state of the device main body function unit 13 to the external device through the input unit 42, a data read command is sent to the device main body function unit 13 according to the instruction. When the necessary data is input via the communication line in response to the command, the power supply circuit 16 (power supply means) is operated and the power supply circuit 26 (power reception means) of the I / F unit 3 is operated. ). And the data acquired from the apparatus main body function part 13 are output to the communication circuit 46, an amplitude shift modulation of a high frequency signal is carried out, and light is light-emitted from the light emitting diode of the transmission / reception part 45. FIG. On the other hand, when the phototransistor of the transmission / reception unit 33 of the I / F unit 3 converts the signal into a signal according to the amount of received light, the communication circuit 32 of the I / F unit 3 smoothes the signal from the transmission / reception unit 33 and removes high-frequency components. Then, the data of the device main body function unit 13 is extracted and binarized, and is output to the microcomputer 22 of the I / F unit 3 through a buffer. The microcomputer 22 outputs the data from the device main body function unit 13 to the input / output unit 31 according to a predetermined procedure and transfers it to the external device.

  In addition, when the microcomputer 43 of the remote control body 4 detects an instruction to transfer data from an external device to the device body function unit 13 through the input unit 42, the microcomputer 43 operates the power supply circuit 16 and the power supply circuit 26 of the I / F unit 3. To receive power. Next, in accordance with an instruction from the input unit 42, a data reception command is output to the communication circuit 46 to be operated, and light is emitted from the transmission / reception unit 45. On the other hand, when the phototransistor of the transmission / reception unit 33 of the I / F unit 3 converts the signal into a signal according to the amount of received light, the communication circuit 32 of the I / F unit 3 smoothes the signal from the transmission / reception unit 33 and removes high-frequency components. Then, a data reception command issued from the microcomputer 43 of the remote control body 4 is extracted and binarized, and is output to the microcomputer 22 of the I / F unit 3 through the buffer. When the microcomputer 22 detects a data reception command, it reads the received data from the input / output unit 31 according to a predetermined procedure, outputs it to the communication circuit 32, operates it, and emits light from the transmission / reception unit 33. At this time, the phototransistor of the transmission / reception unit 45 of the remote control main body 4 converts the signal into a signal according to the amount of received light, and the communication circuit 46 of the remote control main body 4 smoothes the signal from the transmission / reception unit 45 to remove high frequency components. The received data from the output unit 31 is extracted and binarized, and is output to the microcomputer 43 of the remote control body 4 through the buffer. The microcomputer 43 outputs the received data to the device main body function unit 13, and the device main body function unit 13 controls its own state based on the received data and changes internal parameters.

  As described above, according to the third embodiment, data is transmitted / received to / from each of the communication circuits 46 and 32 of the remote control main body 4 and the I / F unit 3 using the transmission / reception units 45 and 33 made of photocouplers, Further, power is supplied from the power supply circuit 16 to the power supply circuit 26 using the power supply unit 17 of the series resonance circuit for the power supply circuit 16 of the remote control body 4 and the power receiving circuit 27 of the parallel resonance circuit for the power supply circuit 26 of the I / F unit 3. As a result, it is possible to insulate the I / F unit 3 from the power source of the remote control main body 4, and therefore it is not necessary to take measures for strengthening the insulation of the power source, and the power receiving circuit 41 of the remote control main body 4 is insulated. It is possible to suppress damage to the I / F unit 3 due to destruction and inflow of abnormal current to the external device through the input / output unit 31.

  In the third embodiment, when the data of the device main body function unit 13 is transferred from the input / output unit 31 to the external device, and the data received by the input / output unit 31 is transferred to the device main body function unit 13. In addition, the power supply circuit 16 of the remote control body 4 is operated so that the I / F unit 3 receives power. However, the power supply to the I / F unit 3 is periodically or constantly performed, and the microcomputer 22 inputs and outputs the input / output unit. 31 may be accessed to determine the presence or absence of data, and transmission / reception may be performed according to the contents of the data.

  In addition, the transmission of data by the amplitude shift keying method is shown as an example to the communication circuits 46 and 32 of the remote control body 4 and the I / F unit 3, but the baseband method, the phase shift keying (PSK) method, or the frequency Data transmission may be performed using a shift keying (FSK) method, a quadrature amplitude modulation (QAM) method, or the like. Furthermore, although the microcomputer 43 is used for the remote control body 4, logic such as an FPGA (Field Programmable Gate Array) or other control means may be used.

  In the third embodiment, the input / output unit 31 of the I / F unit 3 is not specified. However, as shown in FIG. 14, data is exchanged with an external device using the UART 28a for the input / output unit 31. May be transmitted / received. 15 may be a LAN connection unit 28b connected to a 10Base-T LAN, or a USB connection unit 28c may be provided to communicate with an external device as shown in FIG. good. In addition, the memory card I / F unit 28d may be used as the input / output unit 31 as shown in FIG. 17, or the PIO 28e may be used to exchange data with an external device as shown in FIG. . These can be used because the I / F unit 3 is insulated from the power source of the remote control main body 4 and can be provided in the I / F unit 3 without taking any measures in structure.

  As an application example of the input / output device of the present invention, an operation display unit of household appliances and an input / output device of FA (Factory Automation) equipment can be cited, and as an application example of a remote control device, a controller of a building air conditioner Is mentioned.

It is a block diagram which shows the structural example of the input / output device which concerns on Embodiment 1 of this invention. FIG. 3 is a block configuration diagram when an input unit and an output unit of the input / output device in Embodiment 1 are set to UART. FIG. 3 is a block configuration diagram when the input unit and the output unit of the input / output device in Embodiment 1 are LANs. 3 is a block configuration diagram when the input unit and the output unit of the input / output device in Embodiment 1 are USB. FIG. FIG. 3 is a block configuration diagram when an input unit and an output unit of the input / output device according to Embodiment 1 are memory card I / F units. FIG. 2 is a block configuration diagram when an input unit and an output unit of the input / output device in Embodiment 1 are PIOs. It is a block diagram which shows the structural example of the remote control apparatus which concerns on Embodiment 2 of this invention. FIG. 9 is a block configuration diagram when an input / output unit of an I / F unit according to Embodiment 2 is a UART. FIG. 10 is a block configuration diagram when an input / output unit of an I / F unit in the second embodiment is a LAN. FIG. 10 is a block configuration diagram when the input / output unit of the I / F unit in the second embodiment is a USB. FIG. 9 is a block configuration diagram when an input / output unit of an I / F unit in the second embodiment is a memory card I / F unit. FIG. 10 is a block configuration diagram when an input / output unit of an I / F unit in the second embodiment is a PIO. It is a block diagram which shows the structural example of the remote control apparatus which concerns on Embodiment 3 of this invention. FIG. 11 is a block configuration diagram when an input / output unit of an I / F unit according to Embodiment 3 is a UART. FIG. 10 is a block configuration diagram when an input / output unit of an I / F unit according to Embodiment 3 is a LAN. FIG. 10 is a block configuration diagram when an input / output unit of an I / F unit in the third embodiment is a USB. FIG. 10 is a block configuration diagram when an input / output unit of an I / F unit according to Embodiment 3 is a memory card I / F unit. FIG. 10 is a block configuration diagram when an input / output unit of an I / F unit according to Embodiment 3 is a PIO. It is a circuit diagram which shows the structure of the electric power feeding circuit of an apparatus main body, and the power supply circuit of an input / output device. It is a circuit diagram which shows the structure of each communication circuit of an apparatus main body and an input / output device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 apparatus main body, 11 power supply circuit, 12 microcomputer, 13 apparatus main body functional part, 14 communication circuit, 14a carrier oscillation part, 14b AND circuit, 14c amplifier circuit, 14d detection circuit, 14e comparator, 141 buffer, 15 transmission / reception part, 16 Feeding circuit,
16a smoothing circuit, 16b inverter, 17 power feeding unit, 2 input / output device, 21 input unit, 22 microcomputer, 23 output unit, 24 communication circuit, 24a carrier oscillation unit,
24b AND circuit, 24c amplifier circuit, 24d detector circuit, 24e comparator,
241 buffer, 25 transceiver unit, 26 power supply circuit, 26a diode, 26b smoothing circuit, 26c power supply stabilization circuit, 26d connector, 27 power receiving unit, 3 I / F unit,
31 input / output unit, 32 communication circuit, 33 transmission / reception unit, 4 remote control body, 41 power reception circuit, 42 input unit, 43 microcomputer, 44 output unit, 45 transmission / reception unit, 46 communication circuit.

Claims (7)

A remote control device having an I / F unit in a remote control body and connected to an electric device connected to a commercial power supply via a power line and a communication line,
The remote control body is
A feeding circuit having a coil at the output end;
A communication circuit having a coil at the output end,
The I / F part is
A power receiving means having a resonance circuit comprising a coil electromagnetically coupled to the coil of the power supply circuit and a capacitor, and for making the AC voltage generated in the resonance circuit by the electromagnetic induction from the coil of the power supply circuit a predetermined constant voltage; ,
A communication unit having a resonance circuit including a coil electromagnetically coupled to a coil of the communication circuit and a capacitor, and generating a high-frequency magnetic field between the coil of the communication circuit and the resonance circuit;
An input / output unit for transmitting / receiving signals to / from an external device,
The control means in the remote control main body operates the power feeding circuit to cause the power receiving means to operate the resonance circuit when communication is performed between the input / output unit and the electric device based on a switch operation of the input unit. A remote control device characterized in that it receives an AC voltage generated in the. A remote control device having an I / F unit in a remote control body and connected to an electric device connected to a commercial power supply via a power line and a communication line,
The remote control body is
A feeding circuit having a coil at the output end;
A communication circuit having an optical wireless medium for transmitting and receiving a signal by light at an output end;
The I / F part is
A power receiving means having a resonance circuit comprising a coil electromagnetically coupled to the coil of the power supply circuit and a capacitor, and for making the AC voltage generated in the resonance circuit by the electromagnetic induction from the coil of the power supply circuit a predetermined constant voltage; ,
A communication means having an optical wireless medium for transmitting and receiving signals to and from the optical wireless medium of the communication circuit;
An input / output unit for sending and receiving signals to and from external devices
The control means in the remote control main body operates the power feeding circuit to cause the power receiving means to operate the resonance circuit when communication is performed between the input / output unit and the electric device based on a switch operation of the input unit. A remote control device characterized in that it receives an AC voltage generated in the.   The remote controller according to claim 1, wherein the input / output unit is asynchronous serial communication.   The remote controller according to claim 1, wherein the input / output unit is a LAN connection unit.   The remote controller according to claim 1, wherein the input / output unit is a USB connection unit.   The remote controller according to claim 1, wherein the input / output unit is a memory card I / F unit.   The remote controller according to claim 1, wherein the input / output unit is a parallel input / output port.

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