JPH10188827A - Load control device with heat ray sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a load control device with heat ray sensor whereby conservation of power and prolongation of life of a load can be attained. SOLUTION: A load control device with heat ray sensor is constituted by a controller 2 connected to a transmission line Ls formed by a pair of signal lines from a main control device 1, heat ray sensor 7 connected to the controller 2, and a brightness sensor 9. In the controller 2, a remote control transformer 6 feeding power of AC24V is connected. In the controller 2, based on a supervisory input from the heat ray sensor 7, a lighting load 5 connected to a controlling terminal device, branch connected to the transmission line Ls, is on/off turned. In the controller 2, by a transmission signal from the main control device 1, whether the supervisory input of the heat ray sensor 7 is made valid or invalid can be switched. When brightness detected in the brightness sensor 9 is higher than a prescribed value, by the transmission signal from the main control device 1, the supervisory input of the heat ray sensor 7 is invalidated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a method for automatically turning on a load by detecting a heat ray radiated from a human body or the like.
The present invention relates to a load control device with a heat ray sensor that performs off control.

[0002]

2. Description of the Related Art Conventionally, a load control device with a heat ray sensor which turns on and off a load such as an illumination load by detecting a heat ray radiated from a human body by a heat ray sensor is shown in FIG. A configuration is provided that is incorporated into the remote control system. Hereinafter, the remote control system having the configuration shown in FIG. 8 will be described. In this remote control system, a plurality of control terminals 3 and operation terminals 4 for controlling loads are connected to a transmission line Ls composed of a pair of signal lines from a main control device 1. For example, a lighting load 5 is connected to the control terminal 3 as a load, and a switch (not shown) is connected to the operation terminal 4 or is integrated with the switch.

[0003] The main control unit 1 is connected to the transmission line Ls as shown in FIG.
A transmission signal Vs having a format as shown in FIGS. That is, the transmission signal Vs includes a start pulse ST indicating the start of signal transmission, mode data MD indicating a signal mode, address data AD, control data CD for controlling a load, checksum data CS for detecting a transmission error, and control data This is a bipolar (± 24 V) time-division multiplexed signal including a signal return period WT for setting a return period of a return data signal from the terminal device 3 or the operation terminal device 4 so that data is transmitted by pulse width modulation. It has become.

In each of the control terminals 3 and the operation terminals 4, when the address data AD transmitted by the transmission signal Vs received via the transmission line Ls matches the preset own address, the transmission is performed. Control data C of signal Vs
D and the signal return period W of the transmission signal Vs.
The return data is synchronized with the current mode signal (transmission line Ls
Are short-circuited through an appropriate low impedance and sent out as a signal.

The main controller 1 is provided with a dummy signal transmitting means and an interrupt processing means. The dummy signal transmitting means constantly transmits a dummy transmission signal in which the mode data MD is set to the dummy mode. Further, when the interrupt signal Vi as shown in FIG. 9C is returned, the interrupt processing means detects the operation terminal 4 that has generated the interrupt signal Vi, and accesses the operation terminal 4 to access the operation terminal 4. Return data is returned from the operation terminal device 4 that has generated the interrupt signal Vi. That is, the operation terminal 4 is provided with a no-voltage input terminal, and a switch is connected to the no-voltage input terminal. When the switch is turned on or off, an interrupt signal Vi is generated according to a change in the switch input. Send it out. In response to the interrupt signal Vi, the main control device 1 transmits a transmission signal Vs for address search for each group address in order to search for the interrupted operation terminal 4. The interrupted operation terminal 4 returns its own unique address as return data when the group to which it belongs is accessed.

By this return, the main controller 1 can determine the interrupted operation terminal 4 and transmit a transmission signal Vs having the address data AD of the operation terminal 4 to transmit the transmission signal Vs. To access the operation terminal 4
Then, the state of the switch output connected from is returned as return data. The main control device 1 includes an operation terminal 4
The control data CD to the control terminal 3 for controlling the lighting load 5 corresponding to the interrupted operation terminal 4 is created based on the return data returned from the server, and the transmission including the control data CD is performed. By performing time division multiplex transmission of the signal Vs to the control terminal 3 via the transmission line Ls,
The lighting loads 5 are individually turned on / off. Here, in the main control device 1, a correspondence relationship with the control terminal device 3 to which the lighting load 5 to be controlled is connected in response to the return data from the operation terminal device 4 is set, and according to this correspondence relationship. On / off control of the lighting load 5 of the control terminal 3 is performed. Each control terminal 3 and each operation terminal 4 rectify and smooth the transmission signal Vs constantly transmitted to the transmission line Ls to obtain a power supply for operating the internal circuit.

By the way, a load control device with a heat ray sensor is
By turning off the lighting load 5 when no one is present, wasteful consumption of power is suppressed, and when both hands are closed and a switch provided on a wall or the like cannot be operated, the lighting load 5 automatically blinks. Or incorporated into the remote control system described above. Here, in the load control device with a heat ray sensor, the load control device is configured by a heat ray sensor and a controller that controls an illumination load based on a detection result of the heat ray by the heat ray sensor, so that a detection area of the heat ray sensor can be set arbitrarily. Usually, a heat ray sensor and a controller are separately provided, and these are connected by a signal line.
At present, the heat ray sensor is mounted on a ceiling or a wall of a conference room, a lobby, a toilet, a library, or the like, and the controller is mounted on the ceiling.

[0008]

However, in the above-mentioned conventional configuration, the lighting load 5 is turned on by the approach of the human body regardless of the surrounding brightness, so that it is not necessary to turn on the lighting load 5 when it is bright in the daytime. Regardless, since the lighting load 5 is turned on, there is a problem that power is wasted. Further, when the heat ray sensor is installed in a place where a lot of people come and go, there is a problem that the number of times of blinking of the lighting load 5 is increased more than necessary and the life of the lighting load 5 is shortened.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a load control device with a hot-wire sensor that can save power and extend the life of a load.

[0010]

According to a first aspect of the present invention, in order to achieve the above object, a unique address is set and the main address is branched and connected to a main controller via a transmission line composed of a pair of signal lines. A controller having a control circuit for receiving a transmission signal including address data and control data sent from the control device, and a hot-wire sensor connected to the controller and detecting a hot-wire radiated from a human body, wherein the controller is configured to receive a signal from the hot-wire sensor. When receiving the monitoring input, the main control unit returns reply data for controlling the load connected to the control terminal associated with the address, and the monitoring input is transmitted by a transmission signal from the main control unit. It is characterized in that it can be switched between enabled and disabled, and the monitoring input is enabled / disabled by a transmission signal from the main controller. It can prolong the life of the load while achieving power saving by switching appropriately. Further, since the validity / invalidity of the monitoring input is switched by a transmission signal from the main control device, the monitoring input input to each of the plurality of controllers branched and connected to the transmission line can be invalidated.

According to a second aspect of the present invention, in the first aspect of the invention, the controller stores the validity / invalidity of the monitoring input in the non-volatile memory every time the validity / invalidity of the monitoring input is switched. The state before the power failure can be maintained. According to a third aspect of the present invention, in the first aspect, a brightness sensor for detecting illuminance is connected to the controller, and the controller validates the monitoring input only when the illuminance detected by the brightness sensor is equal to or less than a predetermined illuminance. Therefore, when the ambient illuminance is bright, it is possible to prevent the load from being controlled even when a monitoring input is received, and it is possible to extend the life of the load while saving power.

According to a fourth aspect of the present invention, in the first aspect, the controller is provided with a power supply circuit for supplying power to the heat ray sensor and the brightness sensor, so that the number of connected brightness sensors and heat ray sensors can be easily increased. be able to. Claim 5
According to the invention of claim 1 to claim 4, since the body of the controller is set to be three times as large as the unit size of the common type circuit breaker for a light distribution board, the controller is divided. It can be easily installed in a distribution board, and by providing it in a distribution board, the appearance is better than when the controller is mounted on a ceiling, and various settings and external operations of the controller are facilitated.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic configuration diagram in which a load control device with a heat ray sensor according to the present embodiment is incorporated in the above-mentioned remote control system. The basic operation of the remote control system is the same as the conventional example. Here, the load control device with a heat ray sensor includes a heat ray sensor 7 that detects a heat ray radiated from a human body or the like in a detection area using a pyroelectric element or the like, and an illumination load based on a monitoring input from the heat ray sensor 7. 5 and a brightness sensor 9 for detecting ambient illuminance using CdS or the like. In the remote control system shown in FIG. 1, a controller 2, a control terminal 3, and operation terminals 4 ₁ and 4 ₂ are connected to a transmission line Ls composed of a pair of signal lines from a main controller 1. Further, the lighting load 5 is connected to the control terminal 3, and a remote control transformer 5 that supplies 24 V AC is connected to the controller 2. Further, the operation terminal unit 4 _first switch SW ₁ for performing on and off of the lighting load 5 is integrally incorporated,
The operation terminal device 4 ₂ are incorporated integrally switch SW ₂ which will be described later. Incidentally, the operation terminal unit 4 ₂ is provided with a red light-emitting diodes and green light-emitting diodes, only one light emitting diode in response to the operation of the switch SW ₂ is turned to the on state (emission color) It can be checked from outside.

The controller 2 transmits data from the main controller 1.
A pair of signal line terminals T to which the line Ls is connected₁, T_TwoWhen,
Signal line L from heat ray sensor 7₀Terminal connected to
Child T _Three, T_FourAnd the power line L from the remote control transformer 5_Two
Are connected to a pair of power supply terminals T_Five, T₆And brightness
Signal line L from the sensor 9₁Is connected to a pair of brightness sensors
Terminal T₇, T₈And

The controller 2 has a circuit as shown in FIG.
It has a configuration. That is, microcomputers, etc.
The control circuit 50 comprises a
Signal line terminal T via path 21₁, T_TwoTransmission line L
s. The transmitting / receiving circuit 21 includes a transistor Q₁
And a transistor Q_ThreeAnd resistance R _Five
And a transmission unit 21b having the following. Therefore, the main rule
The transmission signal V transmitted from the control device 1 to the transmission line Ls.
s (see FIG. 9) is transmitted to the control circuit 50 through the receiver 21a.
Is input to On the other hand, from the control circuit 50, the transistor
TA Q_ThreeIs turned on, the transmission line Ls
Resistance R_FiveShort circuit through the current mode signal to the main controller
1 can be returned. Power supply to control circuit 50
Is a diode for transmitting the transmission signal Vs transmitted through the transmission line Ls.
Bridge DB₁Full-wave rectification by transistor Q_Two,
Zener diode ZD, capacitor C_TwoStable by etc.
This is performed by the power supply circuit 22 which is implemented. Here, Daioh
Bridge Bridge DB₁Are shared with the transmission unit 21b.
The reception state of the transmission signal Vs is connected to the control circuit 50.
Light-emitting diode LED for reception display_TwoIndicated by the blinking
You.

The address of the controller 2 and the control circuit 50
The function data for setting the above function is stored in a data storage unit 42 composed of a nonvolatile memory such as an EEPROM. The data stored in the data storage unit 42 is created by processing the signal received by the optical signal receiving circuit 41 including the light receiving element PD ₁ and the transistors Q ₅ and Q ₆ by the control circuit 50. Here, the signal received by the optical signal receiving circuit 41 is a wireless signal such as infrared rays transmitted from a setting device (not shown) provided outside. The controller 2 is provided with an optical signal transmission circuit 45 including a light emitting diode LED ₁ , a transistor Q _{4, and the} like. When a wireless signal is received, a response such as reception confirmation or setting confirmation is performed according to the content of the signal. The signal is returned to the setting device as a wireless signal.

Incidentally, the data storage section 42 stores a first address for blinking the illumination load 5 and a second address for switching the validity / invalidity of the monitoring input inputted from the heat ray sensor 7. The control circuit 50 disables the monitoring input when the main controller 1 has the ON control at the second address, and enables the monitoring input when the second address has the OFF control. Here, the controller 2 sets the EEP every time the validity / invalidity of the monitoring input is switched.
Since the validity / invalidity of the monitoring input is stored in a nonvolatile memory such as a ROM, the state before the power failure can be maintained even if a power failure occurs.

The control circuit 50 includes a transmission circuit 43 for supplying a basic clock, and determines a time from when the monitoring input goes from a high level to a low level to when the lighting load 5 is turned off when the monitoring input is valid. Also connected are a timer time setting unit 26 having a variable resistor VR for adjusting the timer time T, a reset circuit 44 for resetting the control circuit 50, and the like.

The controller 2 includes a current limiting circuit 2
Power is supplied to the hot-wire sensor 7 connected to the slave unit input terminals T ₃ and T ₄ via the signal line L ₀ via the terminal ₃ . By providing the current limiting circuit 23 limits the current flowing through the signal line L _0, the change in the line voltage of the signal line L ₀ is so as not to affect the power supply voltage of the internal controller 2. On the other hand, the heat ray sensor 7 changes the line voltage of the signal line L ₀ by turning on and off the switching element in response to human presence. The line voltage of the signal line L ₀ connected to the slave unit connection terminals T ₃ and T ₄ is determined by a comparator CP provided in the slave unit signal determination circuit 24.
This is compared with a reference voltage determined by the voltage division of the resistors R ₁₇ and R ₂₅ .
Here, when the human body is not detected by the heat ray sensor 7, the comparator CP which is the output of the signal determination circuit 24
A the output is low, the phototransistor PT emitting diodes LD ₁ of the photocoupler PC ₁ is lit
₁ is on, and a low-level signal is input to the terminal P ₁ of the control circuit 50. In contrast, when the human body is detected by the hot wire sensor 7, the output of the comparator CP becomes high level, since the light emitting diode LD ₁ is turned off, the phototransistor PT ₁ is turned off, the terminal P ₁ of the control circuit 50 Is a high level signal.

Further, the controller 2 has a brightness sensor.
A sensor signal determination circuit 27 for monitoring the output state of the
Have been killed. Here, the brightness sensor 9 is used as a light receiving element.
Detected illuminance is larger than the preset reference illuminance
The ON signal and the illuminance detected by the light receiving element
An off signal is output when the illuminance is below the quasi-illuminance level.
You. Also, this off signal is input to the sensor signal determination circuit 27.
When activated, the photocoupler PC_TwoLight emitting diode
LD_TwoLights up and the phototransistor PT _TwoIs on
And the terminal P of the control circuit 50_ThreeLow-level signal
Number is entered. On the other hand, the sensor signal determination circuit 27
When the above-described ON signal is input to the photo coupler PC_Two
Light emitting diode LD_TwoTurns off the phototransistor
PT_TwoIs turned off, and the terminal P of the control circuit 50 is turned off._ThreeHigh level
Is input.

The control circuit 50, when the terminal P ₃ low-level signal is input, that is, when detected by the brightness sensor 9 illuminance is below a predetermined illuminance, a high-level signal to the terminal P ₁ is When input, the interrupt signal Vi is sent to the main controller 1 through the transmission unit 21b, and then the transmission signal Vs for interrupt processing from the main controller 1 is received,
After the corresponding address data is returned, command data for turning on the corresponding lighting load 5 is returned as transmission data via the transmission unit 21b in response to a request for returning a monitoring input from the main controller 1. In main controller 1,
Control data for turning on a predetermined lighting load 5 of the control terminal 3 corresponding to the controller 2 is created in accordance with the reply data, and the control terminal 3 is accessed by the transmission signal Vs having the control data, and the lighting load is adjusted. Turn 5 on. On the other hand, when the signal inputted to the terminal P ₁ is changed from the high level to the low level, the control circuit 50 lighting load interrupt signal Vi through replying unit 21b after the timer time T has elapsed is sent to the main control unit 1 5 Is turned off.

On the other hand, when a high-level signal is input to the terminal P ₃ , the control circuit 50 sends an interrupt signal Vi to the main control device 1 through the transmission section 2 b, and then monitors from the main control device 1. returns via the transmitting unit 21b an instruction data for disabling the signals from the hot wire sensor 7 is input to the terminal P ₁ as return data in response to input a reply request. Then, the main controller 1 creates control data for invalidating the signal from the hot-wire sensor 7 according to the return data,
The controller 2 is accessed by the transmission signal Vs having the control data, and the monitoring input from the hot-wire sensor 7 is invalidated.

Slave signal judging circuit 24, current limiting circuit 23
To the power line L_TwoThrough the remote control transformer 6
24V AC supplied from the diode bridge DB_TwoTo
More full-wave rectification, capacitor C₁₇Power supply smoothed by
This is done by the circuit 28. Here, the power supply circuit 28
Sensor signal determination circuit 27, brightness sensor terminal T₇, T ₈
Signal line L₁To the brightness sensor 9 connected via the
Electricity is also available.

A mode changeover switch SW ₀ is connected to the control circuit 50. The mode changeover switch SW ₀ has an automatic mode for automatically controlling the lighting load 5 based on the output signal of the heat ray sensor 7, and This is for selecting the off mode in which the lighting load is turned off irrespective of the output signal of the hot-wire sensor 7. The mode change switch S
When W ₀ is on, the mode is off, and when the mode switch SW ₀ is off, the mode is automatic.

FIG. 3 summarizes the above operation. That, (a) shows the OFF state of the lighting load 5 in FIG. 3, (b) the detection state of the human body by the heat ray sensor 7 (i.e., the state of the monitoring input), (c) the operating conditions switch SW _1, (d ) the operation state of the mode selector switch SW _0,
(E) shows an input state from the brightness sensor 9.

First, when the output of the brightness sensor 9 is off,
That is, a low level signal to the terminal P ₃ of the control circuit 50 will be described operation of the state that is entered. Time t
_{In 1} , when a human body is detected by the heat ray sensor 7 while the output of the brightness sensor 9 is off, the lighting load 5 is turned on. When at time t ₂ at the heat ray sensor 7 is human no longer detected, the internal timer of the control circuit 50 starts a timed operation, after the timer time T has elapsed, the lighting load 5 is turned off. When the lighting load at time t ₃ 5 are timed operation at time t ₄ is turned on is started in the same manner, the off-mode is selected by the mode changeover switch SW ₀ at time t ₅ between the timer time T Then, the lighting load 5 is forcibly turned off even during the timed operation. This on the lighting load 5 be detected human body at time t ₆ is in the state of the off mode is not performed, timed operation of the timer unit may no longer human body is detected at time t ₇ is not performed. Next, the switch SW ₁ (Note, the switch SW ₁ has the same address as the first address of the controller 2) at time t ₈ when operating the lighting load 5 is turned on, the switch SW ₁ at the time t ₉ When operated again, the lighting load 5 is turned off. Further, at time t ₁₁
When switching the mode changeover switch SW ₀ to the automatic mode in the illumination load 5 is turned on when the human body by hot wire sensor 7 is detected at time t _13. And time t
_{When the} human body is no longer detected in ₁₄ , the timer unit starts the timed operation. When the switch SW ₁ is turned on at time t ₁₅ during the timer time T, the lighting load 5 is forcibly applied even during the timed operation. Is turned off.

Next, the operation when the output of the brightness sensor 9 is ON will be described. When the output of the brightness sensor 9 is turned on at time t _16, the lighting load 5 even human body is detected at time t ₁₇ it is not turned on. Then, by operating the switch SW ₁ at time t _18, the lighting load 5 is turned on, the switch SW ₁ at time t ₁₉ is turned off lighting load 5 when operated again.

Therefore, when the surroundings are bright, the lighting load 5 is not turned on even if the human body is detected by the heat ray sensor 7, so that the life of the lighting load 5 can be extended while saving power. you can turn on and off the lighting load 5 by operating the SW _1. Meanwhile, as shown in FIGS. 4 to 6, the circuit is mounted on two circuit boards 11a and 11b connected via a flexible tape wire 11c (see FIG. 6). The variable resistor VR described above is mounted on one circuit board 11a, and a knob F for operating the variable resistor VR is provided on the body 10
Exposed on the top of The container body 10 is configured by connecting a rectangular parallelepiped body 13 having an open upper surface and a cover 14 fitted to the opening of the body 13 by an assembly screw 15a and a nut 15b screwed to the assembly screw 15a. I have. The circuit boards 11a and 11b are connected to the cover 14 by mounting screws 12 inserted from the lower surface side. The dimensions of the housing 10 are set to be three times the unit dimensions of the collective wiring breaker for the light distribution board. On both sides of the cover 14 are recesses 17 separated by partition walls 16.
In each of the recesses 17, a terminal plate 19 to which a terminal screw 18 is screwed is provided. These terminal plates 19 serve as terminals T ₁ , T ₂ , T ₃ , T ₄ , T
₅ , T ₆ , T ₇ , and T ₈ . Also, cover 1
4 has a light emitting diode LED ₁ and a light receiving element P
A transparent window 14a of the filter 14b is attached to allow for projection and reception of D _1, a transparent window 14c for translucent light from the receiving display light-emitting diode LED ₂ is formed.
Moreover, on the upper surface of the cover 14, the operation unit 20 of the mode changeover switch SW ₀ of the above is exposed.

In this embodiment, the body 1 of the controller 2
Since 0 is formed in a contract size with respect to a board such as a distribution board, it can be arranged in the distribution board,
The installation is facilitated. By providing the controller in the distribution board 30 as shown in FIG. 7, the appearance is improved as compared with the case where the controller is mounted on the ceiling, and the operation of the knob F or the like of the controller 2 is easily performed. Become.

It is to be noted that a time schedule for switching the validity / invalidity of the monitoring input input from the heat ray sensor 7 to the controller 2 is set in the main controller 1, and the validity / invalidity of the monitoring input is switched according to this time schedule. If the monitoring load is disabled and the lighting load 5 is forcibly turned on during a time period when there are many people, and the monitoring input is enabled only during a time period when there are few people coming and going, unnecessary blinking of the lighting load 5 may occur. The number of times can be reduced, and both a longer life of the lighting load 5 and power saving can be achieved.

[0031]

According to the first aspect of the present invention, a unique address is set, and address data and control data transmitted from the main control device which are branched and connected to the main control device via a transmission line composed of a pair of signal lines are transmitted. A controller having a control circuit for receiving a transmission signal including the control signal; and a hot-wire sensor connected to the controller and detecting a hot-wire radiated from a human body. The main controller transmits return data for controlling the load connected to the terminal for the main terminal, and it is possible to switch between enabling and disabling the monitoring input by a transmission signal from the main controller. In order to save power and prolong the life of the load by appropriately switching the validity / invalidity of the monitoring input according to the transmission signal from the main controller. There is an effect that theft can be. Also, the validity of the monitoring input is determined by the transmission signal from the main controller.
Since the invalidation is switched, the monitoring input input to each of the plurality of controllers branch-connected to the transmission line can be invalidated.

According to a second aspect of the present invention, in the first aspect of the invention, the controller stores the validity / invalidity of the monitoring input in the nonvolatile memory every time the validity / invalidity of the monitoring input is switched. This also has the effect that the state before the power failure can be maintained. According to a third aspect of the present invention, in the first aspect, a brightness sensor for detecting illuminance is connected to the controller, and the controller validates the monitoring input only when the illuminance detected by the brightness sensor is equal to or less than a predetermined illuminance. Therefore, when the ambient illuminance is bright, it is possible to prevent the load from being controlled even when a monitoring input is received, and it is possible to extend the life of the load while saving power.

According to a fourth aspect of the present invention, in the first aspect, the controller is provided with a power supply circuit for supplying power to the heat ray sensor and the brightness sensor, so that the number of connected brightness sensors and heat ray sensors can be easily increased. There is an effect that can be. According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, the body of the controller is set to be three times as large as the unit size of the collective wiring breaker for a light distribution board. The controller can be easily installed in the distribution panel, and by installing it in the distribution panel, the appearance of the controller is better than when the controller is mounted on the ceiling, and various settings and external operations of the controller are easier. effective.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment.

FIG. 2 is a circuit diagram of the controller according to the first embodiment;

FIG. 3 is an operation explanatory diagram of the above.

FIG. 4 is a plan view of the above controller.

FIG. 5 is a vertical sectional view of the controller of the above.

FIG. 6 is a partially cutaway side view of the above controller.

FIG. 7 is a use state diagram of the above.

FIG. 8 is a schematic configuration diagram of a remote control system.

FIG. 9 is an explanatory diagram of a transmission signal used in the remote control system.

[Explanation of symbols]

1 Main controller 2 controller 3 controlling terminal unit 4 operation terminal device 5 the illumination load 6 remote control transformer 7 hot wire sensor 9 Brightness sensor Ls transmission line L ₀ signal line L ₁ signal line L ₂ power line

[Procedure amendment]

[Submission date] March 17, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

A mode changeover switch SW ₀ is connected to the control circuit 50. The mode changeover switch SW ₀ has an automatic mode for automatically controlling the lighting load 5 based on the output signal of the heat ray sensor 7, and This is for selecting the off mode in which the lighting load is turned off irrespective of the output signal of the hot-wire sensor 7. The mode change switch S
When W ₀ is on, the heat ray sensor 7 can be set,
Forced to automatic mode when de change-over switch SW ₀ is off
Becomes

Claims (5)

[Claims] 1. A control for setting a unique address and receiving a transmission signal containing address data and control data transmitted from the main control device by being branched and connected to the main control device via a transmission line composed of a pair of signal lines. A controller having a circuit, and a hot-wire sensor connected to the controller and detecting a hot-wire radiated from a human body, the controller being connected to a control terminal associated with an address when receiving a monitoring input from the hot-wire sensor. Return data for controlling the load to the main control device,
A load control device with a hot-wire sensor, wherein whether a monitoring input is enabled or disabled is switched by a transmission signal from a main control device. 2. The load control device with a hot-wire sensor according to claim 1, wherein the controller stores the validity / invalidity of the monitoring input in a nonvolatile memory every time the validity / invalidity of the monitoring input is switched. 3. The controller according to claim 1, wherein a brightness sensor for detecting illuminance is connected to the controller, and the controller enables the monitoring input only when the illuminance detected by the brightness sensor is equal to or less than a predetermined illuminance. Load control device with heat ray sensor. 4. The load control device with a heat ray sensor according to claim 3, wherein a power supply circuit for supplying power to the heat ray sensor and the brightness sensor is provided in the controller. 5. The heating wire according to claim 1, wherein the body of the controller is set to have a size three times as large as a unit size of the collective wiring breaker for a light distribution board. Load control device with sensor.