JP4569559B2 - Equipment control device - Google Patents

Description

  The present invention relates to a device control apparatus that performs on / off control according to equipment such as lighting equipment.

Conventionally, a remote control system that controls equipment by remote operation input is known from Patent Document 1 below. This remote control system includes, for example, a unit (on-time control unit) that performs on / off control of the lighting device by a brightness sensor attached to the lighting device and performs on-time control to turn off the lighting device according to the operation time of the lighting device. ing. In the conventional remote control system, when the brightness sensor detects that the periphery of the lighting device has become dark, the on-time control unit controls the lighting device to be turned on, and the lighting device is turned off at a predetermined time. It was something to do.
JP 2006-31339 A

  However, the above-described remote control system turns on / off the lighting device by a switch operation provided on the wall in addition to the control to turn on the lighting device according to the brightness and the on-time control to turn off the lighting device according to the time. Therefore, there is a situation where the relay state in which the lighting device is actually turned on or off does not match the state of the built-in relay in the on-time control unit. When such a situation occurs, there is a problem that it is impossible to control lighting / extinguishing of the lighting device by the on-time control unit.

  Therefore, the present invention has been proposed in view of the above-described circumstances, and an object of the present invention is to provide a device control device that can reliably control lighting / extinguishing of lighting devices.

  The device control apparatus according to the present invention is based on a brightness input unit connected to a brightness sensor that detects the brightness around the lighting device, a time measuring unit that measures time, and a signal input by the brightness input unit. When it is determined that the brightness is low, the lighting device is turned on, and when it is determined that the current time measured by the time measuring device has reached a predetermined time, the on-time control unit that turns off the lighting device, and the on-time control unit Is connected to a remote control relay that switches on and off the lighting equipment by turning on and off, and a built-in relay that switches the remote control relay on and off when it is switched on and off by the on-time control means And a remote control relay state detection circuit for detecting an on / off state of the remote control relay. In this device control apparatus, in order to solve the above-described problem, the on-time control means is configured to adjust the on / off state of the remote control relay detected by the remote control relay state detection circuit and the state of the built-in relay so as to match. Control the on / off state.

  According to the device control device of the present invention, the on / off state of the built-in relay is controlled so that the on / off state of the remote control relay detected by the remote control relay state detection circuit matches the state of the built-in relay. Even when the built-in relay state is inconsistent, the remote control relay can be reliably operated by controlling the built-in relay, and lighting / extinguishing of the lighting device can be reliably controlled.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The scheduled time control unit 10 to which the device control apparatus according to the present invention is applied has, for example, an external configuration as shown in FIG. 1 and is provided in a remote control system as shown in FIG. 2 or FIG. This remote control system shows a case where the load is a control target device, for example, a lighting device.

  As shown in FIG. 1, the scheduled time control unit 10 is provided with a liquid crystal display screen 1, a mode selector switch 2, an hour selector switch 3, a minute selector switch 4, and an operation selector switch 5 on the front surface of the main body. The on-time control unit 10 includes a power supply terminal 6 to which a commercial power supply is connected, a brightness sensor terminal 7, an output terminal 8, and a switch connection terminal 9.

  The liquid crystal display screen 1 is a screen for displaying various types of information when the user sets the on-time control unit 10.

  The mode changeover switch 2 is a switch for switching between a normal mode in which the on-time control unit 10 performs a normal operation and a setting mode in which various settings of the on-time control unit 10 are performed. By switching the mode changeover switch 2 to this setting mode, it is possible to perform a current time setting for setting the current time, a lighting time setting for setting the lighting time, and a lighting time setting for setting the lighting time.

  The hour selector switch 3 and the minute selector switch 4 are operated in a state where the mode selector switch 2 is switched to the setting mode. The hour selector switch 3 switches the “hour” of each time when setting the current time, the turn-off time, and the lighting time. The minute selector switch 4 switches the “minute” of each time at the time of setting the current time, the turn-off time, and the lighting time.

  The operation changeover switch 5 switches the on-time control unit 10 between an operation mode (on-time controllable state) and a stop mode (on-time control stop state). The normal mode of the on-time control unit 10 includes both the operation mode and the stop mode. In the operation mode of the on-time control unit 10, when it is determined that the brightness input by the brightness sensor terminal 7 connected to the brightness sensor 11 is low, the lighting device is turned on and the current time is a predetermined time. This is a mode for performing on-time control to turn off the lighting device when it is determined that the on-time has occurred (on-time control means). On the other hand, the stop mode of the on-time control unit 10 is a mode in which control for turning on or off the lighting device is not performed regardless of inputs from the brightness sensor 11 and the clock oscillation circuit 29.

  In the remote control system shown in FIG. 2, the brightness sensor 11 is connected to the brightness sensor terminal 7 of the on-time control unit 10, the remote control transformer 12 and the remote control relay 13 are connected to the output terminal 8, and the remote control switch is connected to the switch connection terminal 9. 14 is connected. The remote control transformer 12 is installed at a location remote from the scheduled time control unit 10 and supplies 24V AC power to the scheduled time control unit 10. The remote control relay 13 is installed at a location remote from the on-time control unit 10 and performs a switching operation by inputting a control signal from the on-time control unit 10. The remote control relay 13 includes an exciting coil and an electrical contact, and the opening and closing of the electrical contact is controlled by the direction in which a voltage is applied to the exciting coil.

  In this remote control system, the on-time control unit 10 is connected to a commercial power source via the power terminal 6 and operates with the commercial power source. In addition, the remote control transformer 12 converts the connected commercial power supply to AC 24V and supplies power to the remote control switch 14 and the remote control relay 13 via the on-time control unit 10. The remote control switch 14 is a load control switch that operates at an AC voltage of 24 V, and is, for example, a switch for turning on / off a lighting device provided on an indoor wall surface where the lighting device is provided. Based on the operation of the remote control switch 14 and the output from the brightness sensor 11, the remote control relay 13 is supplied with an on / off control signal from the on-time control unit 10, opens and closes, and supplies power to the lighting device (load). Turn on and off.

  In the remote control system shown in FIG. 3, a commercial power source and a remote control breaker 15 are connected to the output terminal 8. This remote control system is different from the remote control system shown in FIG. 2 in that a commercial power supply of AC 100V is connected to the output terminal 8 and the commercial power supply is supplied to the remote control switch 14 ′ and the remote control breaker 15. The remote control switch 14 'is configured to operate with a commercial power source. The remote control breaker 15 cuts off when the current value supplied via the scheduled time control unit 10 exceeds a predetermined value.

  This remote control system may be any of those shown in FIG. 2 or FIG. 3, but will be described below with reference to the remote control system of FIG.

  As shown in FIG. 4, the on-time control unit 10 in such a remote control system includes a microcomputer 21, a mode changeover switch input circuit 22, an operation changeover switch input circuit 23, and a time changeover switch input circuit. 24, minute changeover switch input circuit 25, EEPROM (Electrically Erasable and Programmable Read Only Memory) 26, reset circuit 27, oscillation circuit 28, clock oscillation circuit 29, and liquid crystal display unit 30 are connected.

  The mode changeover switch input circuit 22 is connected to the mode changeover switch 2 and detects an operation of the mode changeover switch 2. The change operation of the mode change switch 2 detected by the mode change switch input circuit 22 is detected by the microcomputer 21 and the microcomputer 21 recognizes whether the current mode is the normal mode or the setting mode.

  The operation changeover switch input circuit 23 is connected to the operation changeover switch 5 and detects an operation of the operation changeover switch 5. The switching operation of the operation switch 5 detected by the operation switch input circuit 23 is detected by the microcomputer 21 and the microcomputer 21 recognizes whether the current mode of the on-time control unit 10 is the operation mode or the stop mode. Is done.

  The hour selector switch input circuit 24 is connected to the hour selector switch 3 and detects an operation of the hour selector switch 3. When the operation of the time selector switch 3 detected by the time selector switch input circuit 24 is detected by the microcomputer 21 and recognized by the microcomputer 21 as being in the setting mode, the internal “hour” setting is performed. To change.

  The minute changeover switch input circuit 25 is connected to the minute changeover switch 4 and detects an operation of the minute changeover switch 4. The operation of the minute selector switch 4 detected by the minute selector switch input circuit 25 is detected by the microcomputer 21 and when the microcomputer 21 recognizes the setting mode, the internal “minute” setting is performed. To change.

  The EEPROM 26 stores various setting data for operating the microcomputer 21. The setting data stored in the EEPROM 26 includes IDs of a plurality of lighting devices to be controlled, a flag indicating whether the current mode is the normal mode operation mode or the normal mode stop mode, and the like.

  The reset circuit 27 is provided for performing a setting operation for returning the setting data stored in the EEPROM 26 to an initial value. The reset circuit 27 is connected to a reset operation unit (not shown), and in response to detecting that the reset operation unit has been operated, the setting data stored in the EEPROM 26 by the microcomputer 21 is initialized. Reset to value.

  The oscillation circuit 28 measures the elapsed time after the lighting device is turned on in the operation mode in the normal mode (time measuring means). The oscillation circuit 28 starts measuring time according to the control of the microcomputer 21, and the measured value is read by the microcomputer 21.

  The clock oscillation circuit 29 is a clock function oscillation circuit in the on-time control unit 10. The clock oscillation circuit 29 is read by the microcomputer 21 in order to perform an operation of turning on the lighting device at a time set in advance by the on-time control unit 10 or an operation of turning off the lighting device at a preset time. It is. For example, when the lighting device is turned on at 9:00 am and the lighting device is turned off at 6:00 pm is registered as setting data in the EEPROM 26, the microcomputer 21 sets the lighting time, the turn-off time, and the clock oscillation. The time measured by the circuit 29 is compared.

  The liquid crystal display unit 30 displays various information on the liquid crystal display screen 1. Examples of the content displayed on the liquid crystal display unit 30 include a change in setting data stored in the EEPROM 26 and a change in clock time, and the liquid crystal display unit 30 displays the setting change content.

  The bridge circuit 32 is connected to an AC 100V commercial power supply via the output terminal 8, and is full-wave rectified and supplied to the power supply circuit 33.

  The power supply circuit 33 generates low-voltage power for the microcomputer 21 and power to other circuits constituting the on-time control unit 10 from the power supplied via the bridge circuit 32.

  The power supply voltage detection circuit 34 detects the power supply voltage value supplied from the commercial power supply to the power supply circuit 33 via the output terminal 8 and the bridge circuit 32, and supplies it to the microcomputer 21. The power supply voltage detection circuit 34 is detected by the microcomputer 21 when the signal from the power supply circuit 33 is not supplied due to a power failure or the like. In response to this, the microcomputer 21 enters a wait mode for reducing power consumption, and backs up the current time measured by the clock oscillation circuit 29 in the EEPROM 26.

  The backup power supply circuit 35 is composed of, for example, an internal capacitor. When power cannot be supplied from the power supply circuit 33 to the microcomputer 21 and other circuits during a power failure, the microcomputer 21 supplies power for backing up the current time and the like. The power supplied from the backup power supply circuit 35 to the microcomputer 21 at the time of a power failure is set to a low power supply voltage in order to reduce the power consumption compared to the normal time.

  The brightness sensor detection circuit 31 detects an output from the brightness sensor 11 supplied via the brightness sensor terminal 7. When the surroundings of the brightness sensor 11 are bright, the brightness sensor detection circuit 31 can detect the commercial power supply from the brightness sensor 11, and when the surroundings of the brightness sensor 11 are not bright and dark, the brightness sensor detection is performed. The circuit 31 cannot detect the commercial power supply from the brightness sensor 11. Thereby, the microcomputer 21 determines whether the periphery of the lighting device is bright or dark depending on the presence / absence of a signal from the brightness sensor 11 to the brightness sensor detection circuit 31.

  The one-pulse output circuit 36 includes a built-in relay, and operates the built-in relay by an ON / OFF output from the microcomputer 21 to generate a current pulse for driving the remote control relay 13. This built-in relay is, for example, a three-point relay, and is in a state in which a voltage is applied in a predetermined direction by an on output from the microcomputer 21, and a voltage is applied in a direction opposite to the predetermined direction by an off output from the microcomputer 21. It becomes a state to do.

  This one-pulse output circuit 36 is used for lighting the lighting device by closing the remote control relay 13 based on the control signal of the microcomputer 21 and for opening the remote control relay 13 based on the control signal of the microcomputer 21. When the device is turned off, an output having a current direction in the reverse direction is supplied to the remote control relay 13. Thereby, the microcomputer 21 implements control of turning on / off the lighting device. In the remote control system as shown in FIG. 3, the remote control breaker 15 is connected to the one-pulse output circuit 36.

  When the remote control switch 14 is operated, the scheduled time control unit 10 outputs a control signal of the remote control switch 14 to the output terminal 8 that is an output terminal to the remote control relay 13 connected internally. With this configuration, the on-time control unit 10 realizes control to turn on or turn off the lighting device according to time or brightness, and operation to turn on or turn off the lighting device by operating the remote control switch 14.

  In such a remote control system, the microcomputer 21 of the on-time control unit 10 controls the lighting equipment to be turned on / off by performing processing as shown in FIG.

  In the normal mode, the microcomputer 21 first detects the state of the operation changeover switch 5 via the operation changeover switch input circuit 23 in step S1. If the current mode is the operation mode, the microcomputer 21 performs the process in step S2. If the current mode is the stop mode, the process ends.

  In step S2, the microcomputer 21 determines whether or not to perform time control for turning on or off at a predetermined time stored in the EEPROM 26. When performing the time control, the microcomputer 21 advances the process to step S4. If no control is performed, the process proceeds to step S3.

  In step S3, the microcomputer 21 determines the presence or absence of a signal from the brightness sensor 11 to the brightness sensor detection circuit 31, determines whether there is a change in brightness around the brightness sensor 11, and the brightness. If it is determined that there is no change in brightness, the process ends. If it is determined that there is a change in brightness, the process proceeds to step S4.

  In step S4, the microcomputer 21 determines whether to control the lighting device to be turned on or to turn off the lighting device. If it is determined in step S2 that the lighting device is to be turned on by time control, or if it is determined in step S3 that the periphery of the brightness sensor 11 has become dark, the process proceeds to step S5 and the remote control is performed by the one-pulse output circuit 36. The relay 13 is closed to turn on the lighting device. On the other hand, if the lighting device is controlled to be turned off by time control in step S2, or if it is determined in step S3 that the area around the brightness sensor 11 has become bright, the process proceeds to step S6 and the one-pulse output circuit 36 The remote control relay 13 is opened to turn off the lighting device.

  As described above, according to the scheduled time control unit 10 to which the present invention is applied, the operation changeover switch 5 that can be switched between the operation mode and the stop mode is provided, and illumination is performed when the operation changeover switch 5 is in the operation mode. Control to turn on / off the device, and control to turn on / off the lighting device when the operation switch 5 is in the stop mode is not performed. Can be controlled easily. For example, even if a lighting device capable of performing on-time control is provided, if it is not desired to perform on-time control on a holiday or the like, the operation changeover switch 5 may be switched to the stop mode.

  Next, another scheduled time control unit 10 to which the present invention is applied will be described.

  As shown in FIG. 6, the scheduled time control unit 10 is different from the above-described scheduled time control unit 10 in that a control changeover switch 41 is provided on the front surface of the main body. This control changeover switch 41 controls the lighting device to be turned on / off by the AND operation of the output and time of the brightness sensor 11 and the standard control mode for controlling the lighting device to be turned on / off by the above-mentioned on-time control. The control method is switched between the AND control mode to be performed.

  In the standard control mode, as described above, the lighting device is turned on or off at a predetermined time, and the lighting device 11 is turned on / off by the output of the brightness sensor 11.

  The AND control mode is executed by the microcomputer 21 when the operation of the control changeover switch 41 is set to the “AND control mode” by the control changeover switch input circuit 51 shown in FIG. In the AND control mode, the microcomputer 21 controls lighting / extinguishing of the lighting device by time control and lighting / extinguishing of the lighting device by the output of the brightness sensor 11. Turn on / off control.

  As shown in FIG. 8, the microcomputer 21 of the on-time control unit 10 performs steps S1 and S2 in the same manner as described above. In step S2, the lighting device is controlled to be turned on / off by time control. If so, the process proceeds to step S11.

  In step S <b> 11, the microcomputer 21 determines whether or not the brightness is dark around the brightness sensor 11 based on the output of the brightness sensor 11 when the lighting apparatus is turned on by time control, and selects the lighting apparatus by time control. When the light is turned off, it is determined whether the brightness around the brightness sensor 11 is bright based on the output of the brightness sensor 11. If any determination is made by the microcomputer 21 and a fixed determination is made, the process ends. If both are determined to be affirmative, the process proceeds to step S4. In step S4 and subsequent steps, as in steps S5 and S6 described above, the one-pulse output circuit 36 and the remote control breaker 15 are controlled according to the AND result of time and brightness to control lighting / extinguishing of lighting equipment.

  According to such a remote control system, a determination result of turning on or off the lighting device according to time and a determination result of turning on or off the lighting device according to the brightness are obtained, and both determination results are on or both determination results. The lighting device is turned on / off only when is turned off. This makes it possible to turn on lighting equipment such as signboards when it becomes dark in a store where lighting equipment is turned on in order to start business in the evening. The lighting device can be switched from off to on when the surrounding area becomes dark and the business start time is reached.

  In addition, according to this remote control system, when the determination result of both time and brightness is turned on or off, the lighting device is controlled to be turned on / off, the relay that opens and closes based on time, and the brightness Therefore, it is only necessary to provide a single remote control relay 13 without the need for a series connection with a relay that opens and closes based on the configuration, and the configuration of the remote control system can be simplified.

  Next, another scheduled time control unit 10 to which the present invention is applied will be described.

  As shown in FIG. 9, the on-time control unit 10 is different from the above-described remote control system in that it includes a remote control relay state detection circuit 61 connected to a control line for controlling the remote control relay 13 by a one-pulse output circuit 36. . The remote control relay state detection circuit 61 detects the voltage direction of the control line and detects the current state of the remote control relay 13 based on the voltage direction.

  The remote control relay state detection circuit 61 includes a power terminal 61a, a resistor R1 connected in series to the power terminal 61a, a phototransistor 61d provided between the resistor R1 and the ground terminal 61e, and the phototransistor 61d. The light emitting diode 61c which comprises the photocoupler 61b, and resistance R2 are provided. The resistor R2 and the light emitting diode 61c are connected to a control line. The connection line between the resistor R1 and the phototransistor 61d is connected to the microcomputer 21 for remote control relay state input.

  When such a remote control relay state detection circuit 61 is in a predetermined voltage direction, for example, the light emitting diode 61c emits light to make the photocoupler 61b conductive, and the voltage between the power supply terminal 61a and the ground terminal 61e is reduced. It is detected by the computer 21. On the other hand, when the remote control relay state detection circuit 61 has a voltage direction opposite to the predetermined voltage direction, the light emitting diode 61c does not emit light and the phototransistor 61d is cut off, and the power supply terminal 61a and the ground terminal 61e Is not detected by the microcomputer 21. Thereby, the microcomputer 21 detects the voltage direction in the control line based on the presence or absence of voltage in the remote control relay state detection circuit 61, and detects the open / closed state of the remote control relay 13.

  As an operation example of such a remote control system, a timing chart is shown in FIG. FIG. 10 shows the internal operation of the on-time control unit 10 as FIG. 10 (A), and shows the operation outside the on-time control unit 10 as FIG. 10 (B).

  When the microcomputer 21 detects that the brightness around the brightness sensor 11 has become dark via the brightness sensor detection circuit 31 based on the signal from the brightness sensor 11 at time t1 (FIG. 10 ( A) (a)) At time t2, the built-in relay of the one-pulse output circuit 36 is turned on to control the remote control relay 13 to be turned on (FIGS. 10A, 10B, 10D, 10E). (B) (b)). In this state, a voltage in the voltage direction that turns on the phototransistor 61d is applied to the control line connecting the one-pulse output circuit 36 and the remote control relay 13.

  Thereby, the microcomputer 21 turns on the control result of the remote control relay 13 inside (FIGS. 10A and 10D) and detects that the state of the internal relay of the one-pulse output circuit 36 is on. (FIGS. 10A and 10E). In this state, as a result of the control in which the remote control relay 13 is turned on, the built-in relay of the one-pulse output circuit 36 is turned on, and both states match.

  Next, when the user operates the remote control switch 14 at time t3 (FIGS. 10B and 10A), the remote control relay 13 is turned off at time t4 (FIGS. 10A and 10D). The remote control relay 13 is turned off (FIGS. 10B and 10B).

  However, after time t4, although the remote control relay 13 is turned off by the operation of the remote control switch 14, the built-in relay of the one-pulse output circuit 36 is not turned off. (FIGS. 10A and 10D) and the state of the built-in relay of the one-pulse output circuit 36 (FIGS. 10A and 10E) are different. In order to match the state of the built-in relay of the one-pulse output circuit 36 with the state of the remote control relay 13, the microcomputer 21 first turns on the built-in relay of the one-pulse output circuit 36 at time t5, which is the time when the lighting device is turned on. Inverted off (FIGS. 10A and 10C).

  Thereby, the built-in relay of the one-pulse output circuit 36 is turned off at time t6 (FIGS. 10A and 10E). At the time t6, the remote control relay 13 is in an off state by the operation of the remote control switch 14, and thus the off state of the remote control relay 13 is maintained. Thereby, the control result of the remote control relay 13 recognized by the microcomputer 21 (FIGS. 10A and 10D) and the state of the built-in relay of the one-pulse output circuit 36 (FIGS. 10A and 10E) are displayed. Match.

  At the next time t7, the microcomputer 21 outputs a signal for turning on the built-in relay of the one-pulse output circuit 36 (FIGS. 10A and 10B), and controls the built-in relay of the one-pulse output circuit 36 to be turned on. Then, the remote control relay 13 is turned on. In the description of FIG. 10, the same operation is performed when on / off is reversed.

  According to the on-time control unit 10 as described above, the remote control relay state detection circuit 61 that detects the state of the remote control relay 13 is provided, and the state of the remote control relay 13 matches the state of the built-in relay of the one-pulse output circuit 36. If not, the state of the built-in relay of the one-pulse output circuit 36 is once reversed and then the remote control relay 13 is controlled. As a result, the remote control relay 13 can be controlled by the on-time control unit 10 regardless of the state of the remote control relay 13.

  The on-time control unit 10 is configured to output a short pulse by switching the built-in relay of the one-pulse output circuit 36. After outputting the short pulse, the remote control switch 13 controls the remote control relay 13 to output the short pulse. When the lighting device is switched on or off, the state of the remote control relay 13 and the state of the built-in relay of the one-pulse output circuit 36 do not match. This is because, as shown in FIG. 9, the remote control relay 13 is controlled by operating the remote control switch 14 only through the switch connection terminal 9 and the output terminal 8 of the on-time control unit 10. In this state, even if the built-in relay of the one-pulse output circuit 36 is switched based on time or brightness by the on-time control unit 10, the remote control relay 13 may not operate. The scheduled time control unit 10 according to the present invention can solve such a problem.

  Here, in the on-time control unit that is a comparative example that does not include the remote control relay state detection circuit 61, as shown in FIG. 11, the remote control relay is turned on by controlling the built-in relay of the one-pulse output circuit at time t2. In this state, even if the remote control switch 14 is operated at time t3 and the remote control relay 13 is turned off at time t4, the built-in relay of the one-pulse output circuit is not turned off. Even if the built-in relay of the one-pulse output circuit is controlled to be turned on in order to turn on the lighting device at a predetermined time at time t5, the remote control relay does not operate because the pulse by the built-in relay does not change.

  As shown in FIG. 11, even if the built-in relay of the one-pulse output circuit is turned off at time t11 and the remote-control relay is turned on by operating the remote-control switch after that, the built-in relay of the one-pulse output circuit is not turned on. Therefore, the lighting device cannot be turned off at time t13 by the on-time control.

  Next, another scheduled time control unit 10 to which the present invention is applied will be described.

  The on-time control unit 10 includes a remote control relay auxiliary contact connection terminal 71 shown in FIG. 12, and a remote control relay state detection circuit 81 connected to the remote control relay auxiliary contact connection terminal 71 and the microcomputer 21 shown in FIG. Thus, it is different from the above-mentioned scheduled time control unit 10. The on-time control unit 10 does not include the remote control relay state detection circuit 61.

  The remote control relay auxiliary contact connection terminal 71 is connected to the auxiliary contact of the remote control relay 13. The auxiliary contact of the remote control relay 13 is a contact that is in the same state as the on / off state of the main contact of the remote control relay 13. Therefore, the remote control relay auxiliary contact connection terminal 71 is supplied with a signal indicating the on / off state of the main contact of the remote control relay 13.

  The remote control relay state detection circuit 81 detects a signal to the remote control relay auxiliary contact connection terminal 71 to detect the on / off state of the remote control relay 13. The on / off state detected by the remote control relay state detection circuit 81 is read by the microcomputer 21.

  The microcomputer 21 reads the on / off state of the remote control relay 13 by the remote control relay state detection circuit 81 and switches the state of the built-in relay of the one-pulse output circuit 36 according to the on / off state of the remote control relay 13. For example, when the remote control relay 13 is switched from OFF to ON by operating the remote control switch 14, the state of the built-in relay of the one-pulse output circuit 36 is also switched ON.

  Thereby, the on-time control unit 10 can always match the on / off state of the remote control relay 13 with the on / off state of the built-in relay of the one-pulse output circuit 36. Further, in order to detect the voltage direction to the remote control relay 13, the remote control relay state detection circuit 61 is provided on the control line to detect the current direction and the number of connected remote control relays 13 is limited. Since the unit 10 is connected to the auxiliary contact of the remote control relay 13, the number of connected remote control relays 13 can be increased.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it is possible to change.

It is a front view which shows the external appearance structure of the scheduled time control unit to which this invention is applied. It is a block diagram which shows the structure of the remote control system provided with the scheduled time control unit to which this invention is applied. It is a block diagram which shows the structure of the other remote control system provided with the scheduled time control unit to which this invention is applied. It is a block diagram of an on-time control unit to which the present invention is applied. It is a flowchart which shows the operation | movement procedure of the scheduled time control unit to which this invention is applied. It is a front view which shows the external appearance structure of the other scheduled time control unit to which this invention is applied. It is a block diagram of another scheduled time control unit to which the present invention is applied. It is a flowchart which shows the operation | movement procedure of the other scheduled time control unit to which this invention is applied. It is a block diagram of another scheduled time control unit to which the present invention is applied. It is a timing chart about the operation | movement procedure of the remote control system which has another scheduled time control unit to which this invention is applied. It is a timing chart which shows the comparative example of the other scheduled time control unit to which this invention is applied. It is a front view which shows the external appearance structure of the other scheduled time control unit to which this invention is applied. It is a block diagram of another scheduled time control unit to which the present invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid crystal display screen 2 Mode changeover switch 3 Hour changeover switch 4 Minute changeover switch 5 Run changeover switch 6 Power supply terminal 7 Sensor terminal 8 Output terminal 9 Switch connection terminal 10 On-time control unit 11 Brightness sensor 12 Remote control transformer 13 Remote control relay 14 Remote control Switch 15 Remote control breaker 21 Microcomputer 22 Mode selector switch input circuit 23 Operation selector switch input circuit 24 Hour selector switch input circuit 25 Minute selector switch input circuit 26 EEPROM
27 Reset Circuit 28 Oscillation Circuit 29 Clock Oscillation Circuit 30 Liquid Crystal Display Unit 31 Sensor Detection Circuit 32 Bridge Circuit 33 Power Supply Circuit 34 Power Supply Voltage Detection Circuit 35 Backup Power Supply Circuit 36 One-pulse Output Circuit 41 Control Change Switch 51 Control Change Switch Input Circuit 61 Remote Control Relay state detection circuit 61a Power supply terminal 61b Photocoupler 61c Light emitting diode 61d Phototransistor 61e Ground terminal 71 Remote control relay auxiliary contact connection terminal 81 Remote control relay state detection circuit

Claims (3)

A brightness input means connected to a brightness sensor for detecting the brightness around the lighting device;
A time measuring means for measuring time;
When it is determined that the brightness is low based on the signal input by the brightness input means, the lighting device is turned on, and when it is determined that the current time measured by the timing means has reached a predetermined time, On-time control means for turning off the lighting device,
ON / OFF is controlled by the scheduled time control means and connected to a remote control relay that switches the lighting device between ON and OFF, and when the ON / OFF is switched by the scheduled time control means, the remote control relay is Built-in relay that switches between on and off,
A remote control relay state detection circuit for detecting an on / off state of the remote control relay,
The on-time control unit controls the on / off state of the built-in relay so that the on / off state of the remote control relay detected by the remote control relay state detection circuit matches the state of the built-in relay. Equipment control device.   The device control apparatus according to claim 1, wherein the remote control relay state detection circuit detects an on / off state of the remote control relay according to a current between the built-in relay and the remote control relay.   The remote control relay state detection circuit is connected to an auxiliary contact that is in the same state as the main contact of the remote control relay, and detects the on / off state of the remote control relay by detecting the state of the auxiliary contact. The apparatus control apparatus according to 1.

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