JPH10214685A - Remote supervisory control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shift a terminal from a normal mode to a setting mode by effecting control from a setting device by a simple method and constitution. SOLUTION: A data processing part 31 near a setting device 10 turns on ports P12 and Rx in not less than a given period of time longer than an ON period of signals between a central control device 1 and terminals 2 and 3, and then a transistor Tr12 is turned on through a transmission communication line L11 only for this period of time. A data processing part 12 near the terminals 2 and 3 supervises a reception port Rx, and changes from a normal operation mode to an unusual operation mode when the reception port Rx is turned on in not less than the given period of time, and stops a communication using the reception port Rx to change to a communication using a port P1 and a setting communication line L14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitoring terminal for centrally monitoring the load of a lighting fixture or the like, a remote control terminal for controlling and a central controller connected via a transmission line. It relates to a supervisory control system.

[0002]

2. Description of the Related Art Conventionally, in this type of remote monitoring and control system, addresses and the like are stored in a monitoring terminal for centrally monitoring the load of a lighting fixture and the like, and a storage unit in the control terminal for controlling. As a method of setting, D
In general, an IP switch or the like is provided, and a worker operates the DIP switch or the like. However, in this method, the operation part such as a DIP switch is small, so that the operation is troublesome, and there is a problem that the meaning of the DIP switch is difficult to understand. There is known a method of setting an address or the like by performing wireless communication such as infrared rays between a setting device and a terminal device using a setting device having a built-in device (for example, JP-A-1-233990).

[0003]

However, in the method of setting an address or the like to a terminal by infrared or other radio using a setting device, since this communication method is serial, the terminal is first controlled by a central control unit. There is a problem in that a complicated communication sequence is required to shift from the normal mode in which communication with the device is performed to the setting mode in which communication with the setting device is performed. In addition, in this method, the terminal device needs to be supplied with power from the central control device at the time of setting. For example, if the terminal device is not connected to the central control device during system setting work, Work cannot be performed (first problem).

[0004] Further, since this type of setting device only has a function of setting an address or the like for a terminal device, when adding a function other than the address setting, the communication path is divided by time division. There is a problem that control such as switching is required, and very complicated control is required (second problem).

In addition, since a wireless communication method such as infrared communication is a serial communication method, it takes a long time to set a large amount of data from a setting device to a terminal device. In general, in a wireless communication method such as infrared rays, in order to prevent a terminal device from malfunctioning or to rewrite an address or the like by a malicious third party,
Since the directivity of the receiving unit on the terminal unit and the transmitting unit of the setting unit is configured to be very narrow, an authorized worker can fix the transmitting unit of the setting unit accurately in the direction of the receiving unit on the terminal side while fixing it. There is a problem that the work must be performed, and the work is troublesome (third problem).

By the way, in order to solve the above problem, a method of connecting a setting device and a terminal device via a wire has been considered.
In this method, it is necessary to provide a connector on the terminal device side. However, for example, a monitoring terminal that monitors the ON / OFF state of the switch and notifies the central control device of the monitoring data is mounted on a wall like a general wall switch, so providing a connector on the front panel will provide a beautiful appearance. There is a problem of spoiling. Further, since the monitoring terminal has the same size as a general wall switch, there is a problem that there is no space for providing a connector (fourth problem).

A first object of the present invention is to provide a remote monitoring control system capable of switching a terminal from a normal mode to a setting mode from a setting device by a simple method and configuration in view of the first problem. Is to do. A second object of the present invention is to provide a remote monitoring control system capable of adding functions other than address setting to a setting device with a simple method and configuration in view of the second problem. It is in. In view of the above third problem, a third object of the present invention is to provide a remote control device capable of setting a large amount of data from a setting device to a terminal device in a short time and simplifying a setting operation. It is to provide a monitoring control system. In view of the fourth problem, a fourth object of the present invention is to prevent the appearance from being impaired when a terminal is provided with a connector, and to provide a remote control capable of providing a connector with a simple structure. It is to provide a monitoring control system.

[0008]

According to a first aspect of the present invention, there is provided a monitoring terminal for intensively monitoring a load of a lighting apparatus or the like, and a control for controlling the load. In a remote monitoring and control system in which a terminal device and a central control device are connected via a transmission line, when the setting device sets an address or the like for the terminal device, the terminal device transmits a signal from the central control device. A signal line to be received and the setting device are connected via a first line, and a terminal and the setting device are connected via a second line and a third line for grounding. The setting device short-circuits the first line and the third line to shift the terminal device from the normal operation mode to the setting mode, and in the setting mode, the terminal device and the setting device connect the second and third terminals. Communicating via line 3 And sets the address or the like to more the setter is the terminal device. According to the above configuration, the terminal connects the signal line for receiving a signal from the central control device to the setting device via the first wired line, and the setting device short-circuits the first line, whereby the terminal is short-circuited. Since the terminal is shifted from the normal operation mode to the setting mode, the terminal can be shifted from the normal mode to the setting mode from the setting device by a simple method and configuration.

According to a second aspect of the present invention, in the remote monitoring and control system according to the first aspect, the terminal unit sets the transistor connected between the first line and the third line to a predetermined value. The terminal is shifted from the normal operation mode to the setting mode by being turned on for more than a time. With the above configuration, the terminal device is shifted from the normal operation mode to the setting mode by continuing the ON time of the transistor for a predetermined time or more,
The terminal can be shifted from the normal mode to the setting mode from the setting device by a simple method and configuration.

According to a third aspect of the present invention, in order to achieve the second object, in the remote monitoring control system according to the first or second aspect, the terminal is set by short-circuiting the first line by the setting unit. The terminal is shifted from the normal operation mode to the non-normal operation mode. In the non-normal operation mode, the terminal and the setting device communicate with each other via the first, second, and third lines to simulate the terminal. In the terminal mode, the setting device controls the terminal device in the pseudo terminal mode to perform communication with the central control device through the first, second, and third lines. I do. According to the above configuration, since the setting device communicates with the central control device as a pseudo terminal instead of the terminal device, it is possible to add functions other than address setting to the setting device with a simple method and configuration. it can.

The invention described in claim 4 is the first or second invention.
In the remote monitoring control system according to the above, a signal line through which the terminal device transmits a signal to a central processing unit, and a setting device are further connected via a fourth line, wherein the terminal device is
A first transmission transistor that is turned on and off in response to a signal transmitted to the central control device in a normal operation mode, and wherein the setting unit transmits a signal transmitted to the central control device in a pseudo terminal mode; A second transmission transistor that is turned on and off in response to the setting, and in the pseudo terminal mode, the setting unit turns on and off the second transmission transistor during transmission and turns on the first transmission transistor via the fourth line. The transmission signal is transmitted to the central control device by turning off. According to the above configuration, since the setting device communicates with the central control device as a pseudo terminal instead of the terminal device, it is possible to add functions other than address setting to the setting device with a simple method and configuration. it can.

According to a fifth aspect of the present invention, there is provided a monitoring terminal for centrally monitoring a load of a lighting fixture, a control terminal for control, and a central control unit for achieving the third object. In a remote monitoring and control system connected via a transmission line, when the setting device sets an address or the like for the terminal device, the terminal device and the setting device are connected via a bus, The setting device shifts the terminal device from the normal operation mode to the setting mode via a bus, and the setting device sets an address or the like for the terminal device in the setting mode. According to the above configuration, since the setting device and the terminal device communicate in a bus format, a large amount of data can be set from the setting device to the terminal device in a short time by wireless communication such as infrared communication, and The setting operation can be simplified.

According to a sixth aspect of the present invention, there is provided a monitoring terminal for centrally monitoring a load of a lighting fixture, a control terminal for controlling, and a central control unit for achieving the fourth object. In a remote monitoring and control system connected via a transmission line, the monitoring terminal arranges a connector connected to a connector on the setting device side close to a built-in switch component, and An opening for exposing the connector to the outside is formed in a key top for pressing the key, and the key top is covered with a removable transparent cover. With the above configuration, the opening for exposing the connector to the outside is formed in the key top for pressing the switch, so that it is possible to prevent the appearance from being impaired when the connector is provided in the terminal device, and it is also easy. The connector can be provided with a simple structure.

According to a seventh aspect of the present invention, in the remote monitoring control system according to the sixth aspect, a center position of the switch component and a center position of the key top are shifted. According to the above configuration, it is possible to prevent the appearance from being impaired when the terminal is provided with the connector, and to provide the connector with a simple structure.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a remote monitoring control system according to the present invention, FIG. 2 is a circuit diagram showing an embodiment of a terminal and a setting device in the remote monitoring control system of FIG. 1, and FIG. 3 is a remote monitoring control system of FIG. FIG. 4 is an explanatory diagram showing signals between a terminal and a central processing unit in FIG.

In the remote monitoring and control system shown in FIG. 1, the central control unit 1 and a switch SW1 for turning on and off the luminaire 4 as a load are monitored for on and off states, and the monitoring data is sent to the central control unit 1. A monitoring terminal 2 for notifying,
A control terminal 3 for automatically controlling a relay (relay contact SW2 in the figure) for turning on and off the luminaire 4 based on the control of the central controller 1 is connected via a transmission line 5,
The transmission line 5 includes two lines L1 and L2. The power of the terminals 2 and 3 is supplied from the central controller 1 via the transmission line 5, and the power of the lighting fixture 4 is supplied from the commercial power supply 6.

In this system, the central control unit 1 collects monitoring data from the monitoring terminal 2 or controls the control terminal 3
To transmit a control command to the terminals 2, 3
Is assigned an address as a terminal ID,
This address can be used when installing the system indoors or outdoors,
When the lighting equipment 4 or the like is newly installed or changed in the installed system, the setting is made in the memory in the terminals 2 and 3 by the setting device 10. Further, in the remote monitoring and control system for lighting equipment, the lighting equipment 4 to be monitored or controlled, the group to which the lighting equipment 4 belongs, the dimming data, the pattern, and the like are set for the terminals 2 and 3 in addition to the address.

The signal between the central control unit 1 and the terminals 2 and 3 is bipolar as shown in FIG. 3 (a) and represents data "0" and "1" by pulse widths t0 and t1. . Also,
The signal format on the transmission path 5 includes a start field, a mode field, an address field, and a data field transmitted from the central control device 1 as shown in FIG. It is composed of fields.

The terminals 2 and 3 are connected as shown in FIG. 1 and are connected to the central control unit 1 via the two lines L1 and L2 to the full-wave rectification unit 11, and are therefore transmitted from the central control unit 1. The multi-polarity signal is converted into a direct current by the full-wave rectifier 11. Further, the line L1 is connected to the base of the receiving transistor Tr1 via the resistor R, and the base side of the transistor Tr1 is connected to the ground side of the rectifying unit 11 via the Zener diode Z1. The signal is turned on and off in accordance with the on-periods t0 and t1 and the off-period of the + side signal shown in FIG.

The collector of the transistor Tr1 is connected to a reception port (Rx shown) of the data processing unit 12 and the connector CON4.
a, the data processing unit 12 monitors the received signal Rx on the lines L1 and L2. A transmission port (Tx in the figure) of the data processing unit 12 is connected to the base of the transmission transistor Tr2 via a series resistor R1 and a parallel capacitor C1, and the transistor Tr2 is turned on in response to the transmission signal Tx of the data processing unit 12. Turn off.

The + output side of the rectifier 11 is connected to the connector CON.
1a, and connected to the collector of the constant voltage transistor Tr3 via the resistor R2.
3, the transistor Tr3 is connected to the base of the transistor Tr3 and the cathode of the zener diode Z2, and further connected to the collector of the transmitting transistor Tr2. The emitter of the transistor Tr3 is connected to one end of the smoothing capacitor C2. On the ground side of the rectifier 11, the emitter of the receiving transistor Tr1, the other end of the capacitor C1, the emitter of the transmitting transistor Tr2 (and the resistor R4), the anode of the Zener diode Z2, and the smoothing capacitor C2
Is connected to the connector 2a. The receiving transistor Tr1, the transmitting transistor Tr2, the transistor Tr3, and the like constitute a transmission interface (I / F) 14 with the central control device 1.

The transistor Tr3, the resistors R2 and R3, the Zener diode Z2 and the smoothing capacitor C2 are connected to the terminal 2,
The DC voltage smoothed by the smoothing capacitor C2 is supplied to a circuit such as the data processing unit 12 that requires power. The data processing unit 12 is constituted by a microcomputer, and has a storage unit 13 such as an EEPROM for storing an address and the like set from the setting unit 10. The data processing unit 12 also has a port P for receiving an address or the like set from the setting unit 10.
1 and the port P1 is connected to the connector CON3a.

FIG. 2 shows a setting device 10 for setting addresses and the like for the terminals 2 and 3. The setting unit 10 is a data processing unit 31 constituted by a microcomputer.
The data processing section 31 sends a signal such as an address to the terminals 2 and 3 and receives the signals from the terminals 2 and 3, and sets the terminal 2 and 3 in the normal mode. P12 for shifting from the mode to another mode such as a setting mode, and a transmission port for outputting a transmission signal to the central controller 1 in the pseudo terminal mode (Tx shown)
And a reception port (Rx shown) for inputting a reception signal from the central control device 1.

The port P11 is connected to the connector CON3b, the port P12 is connected to the base of the transistor Tr12, and the receiving port Rx is connected to the receiving transistor Tr12.
And the transmission port Tx is connected to the base of the transmission transistor Tr10. Transistor Tr12 and transmission transistor Tr
The emitter side of 10 is grounded. The ground line of the setting device 10 is connected to the connector 2b.

The setting device 10 further has a battery E for power supply. The positive side of the battery E is connected to the connector C via the diode D.
ON1b, connected to the collector of the constant voltage transistor Tr11 via a resistor R21, connected to the base of the transistor Tr11 and the cathode of the Zener diode Z21 via a resistor R31, and further connected to the transmission transistor Tr10. Connected to the collector. The emitter of the transistor Tr11 is connected to one end of the smoothing capacitor C21. Capacitor C21
, The emitter of the transmitting transistor Tr10 (and the resistor R41), the anode of the Zener diode Z21, and the other end of the smoothing capacitor C21 are grounded.

Battery E, transistor Tr11, resistor R
21, R31, zener diode Z21, and smoothing capacitor C21 constitute a power supply unit 32 of the setting unit 10, and the DC voltage smoothed by the smoothing capacitor C2 is used in the setting unit 10 requiring a power source such as the data processing unit 31. Supplied to the circuit. This DC voltage is also used as a power source for the terminals 2 and 3 in a setting mode described later.

In such a configuration, the data processing units 12 on the terminals 2 and 3 have a normal operation mode for communicating with the central controller 1 and an unusual operation mode. The setting device 10 has a setting mode in which an address and the like are set from the device 10, and a pseudo terminal mode in which the setting device 10 communicates with the central control device 1 as a pseudo terminal without operating itself.

In the normal operation mode, the data processing section 12 of the terminal 2, 3 receives the reception port Rx (the reception transistor Tr).
The reception from the central control unit 1 is performed by monitoring 1). Further, the transmission port Tx (transmission transistor Tr2)
By outputting the transmission signal above, the data processing unit 12 of the monitoring terminal 2 monitors the on / off state of the switch SW1 for turning on / off the lighting fixture 4 as a load, and transmits the monitoring data to the central control unit. 1, and the data processing unit 12 of the control terminal 3 automatically controls a relay (relay contact SW2 in the figure) for turning on and off the lighting equipment 4 based on the control of the central control device 1. .

When the terminals 2 and 3 communicate with the central control device 1 as described above, the terminals 2 and 3 monitor their own addresses in the format shown in FIG. Must be set to the addresses unique to the terminals 2 and 3. For this purpose, first, as shown in FIG. 2, the connectors CON1a on the terminals 2 and 3 side and the CON
1b is connected to establish a communication line L12 for transmission between the terminals 2, 3 and the setting device 10, and similarly, the connectors CON2a and CON2b are connected to establish a common line L13, and the connectors CON3a and CON3b are connected. The setting communication line L14 is established, and the connectors CON4a and CON4b
Are connected to establish the transmission communication line L11.

Next, in this connection state, the setting device 10
When the data processing unit 31 on the side turns on the ports P12 and Rx for a predetermined time longer than the ON periods t0 and t1, the transistor Tr12 is turned on for this time via the transmission communication line L11. Since the data processing units 12 on the terminals 2 and 3 monitor the reception port Rx, when the reception port Rx is turned on for the predetermined time or more, the mode shifts from the normal operation mode to the non-normal operation mode, and the reception port Rx is used. The communication is stopped, and the operation shifts to communication using the port P1 and the setting communication line L14.

In this communication, the terminals 2 and 3 and the data processing units 12 and 31 of the setting device 10 perform serial bidirectional communication using the setting communication line L14 (and the common L13).
When the setting mode is set, an address, communication parameters, and the like are transmitted from the data processing unit 31 of the setting unit 10 to the data processing unit 12 of the terminals 2 and 3 according to the predetermined communication sequence. The data processing unit 12 of each of the terminals 2 and 3 writes the received data into the storage unit 13 and transmits a write completion signal to the data processing unit 31 of the setting device 10 when the writing is completed.

When the data processing unit 31 of the setting unit 10 receives the write completion signal, the data processing unit 31 transmits a setting mode completion signal to the terminal 2,
When the data processing unit 12 of the terminal 2 or 3 receives the setting mode completion signal, the data processing unit 12 of the terminal 2 or 3 switches from the communication using the port P1 and the communication line L14 for setting to the communication using the reception port Rx. Return. If an error occurs during the above procedure, a retry is performed after a certain period of time. Here, the DC voltage of the setting device 10 is
Since the power is supplied to the terminals 2 and 3 via 1a and CON1b, the terminals 2 and 3 can operate even when the system is under construction and the central control device 1 is not connected. .

In this embodiment, the setting communication line L14
, A pseudo terminal mode can be set. Setting device 1
0 communicates with the central control unit 1 as a pseudo terminal instead of the terminals 2 and 3 connected to the connector, as well as other terminals.

In this case, the receiving transistors Tr1 on the terminals 2 and 3 turn on and off the transmission signal from the central control unit 1, and this signal is sent to the setting unit 10 via the transmission communication line L11 and set. The data is received by the reception port Rx of the data processing unit 31 on the device 10 side. Also, the data processing unit 31
Turns on and off the transmission transistor Tr10 in response to the transmission signal Tx, this signal is sent to the terminals 2 and 3 via the transmission communication line L12, and therefore this signal is sent to the central control device 1 side. The data from the data processing unit 31 is transmitted via the setting communication line L41 to the terminal device data processing unit 12, and the output Tx of the data processing unit 12 is output.
, The transmission transistor Tr2 is turned on and off, and this signal is sent to the central processing unit. In this case, the setter-side transmission transistor Tr10 is unnecessary.

Next, a second embodiment will be described with reference to FIGS. The terminals 2 and 3 shown in FIG.
1. In addition to the data processing unit 12, the transmission I / F 14, and the power supply unit 15, a switch input for capturing the on / off state of the switch S1 shown in FIG. 1 and applying an on / off control signal to the switch S2. It has a unit 16 and an LED drive unit 17 that drives an LED for displaying an on / off state of a lighting device as a load. The setting unit 10 includes a data input unit 34 for inputting various data and a data input unit 3 in addition to the data processing unit 31 and the power supply unit 32 described above.
And a data display unit 34 for displaying data and the like input via the control unit 4.

In this embodiment, the terminals 2, 3 and the setting device 10
During this period, instead of the four signal lines L11 to L14 described above, a control signal bus 41 for controlling data read / write and the like is used.
And an address bus 42 for designating a data read / write address, and a data bus 43. In this case, a dual-port EEPROM is used as the memory 13 on the terminals 2 and 3, and as shown in detail in FIG.
The dual port is connected to the PU 12a and the CPU 31a that constitutes the data processing unit 31 on the setting unit 10 side.

In such a connection configuration, the memory 13
It is accessible from both the PU 12a and the CPU 31a, and the setting device 10 does not need to shift the terminals 2 and 3 from the normal operation mode to the setting mode. The CPU 31a transmits the data directly to the memory 1 via the address bus 42 and the data bus 43.
The data setting is performed by accessing 3.

FIG. 6 shows a modified example in which a single-port EEPROM is used as the memory 13 on the terminals 2 and 3 side.
The PU 12a and the CPU 31a are connected via a control signal bus 41 and a data bus 43. In this case, setting device 1
When the 0 side shifts the terminals 2 and 3 from the normal operation mode to the setting mode, the CPU 31a sends the control signal bus 41
When the mode is shifted to the setting mode, the CPU 12a communicates with the CPU 31a, and the CPU 12a of the terminal 2, 3 writes the setting data into the memory 13.

Next, the connector structure on the terminal side will be described with reference to FIGS. FIG. 7 is a side cross-sectional view of the monitoring terminal device 2, showing a switch SW 1 for turning on and off the lighting device 4 and a connector C for connecting to the setting device 10.
ON is mounted on the printed circuit board 101 in close proximity. The switch SW1 is configured by a mechanical switch that is turned on when the button B is pressed and turned off when the button B is stopped. The monitoring terminal 2
When the switch SW1 is turned on, the data processing unit 12 transmits to the central processing unit that the switch SW1 has been pressed, and the central processing unit checks the light-on / light-off flag. In this case, the light is turned off, and in the case of “light-off”, the light-on information is transmitted to the control terminal 3.

The key top 102 is arranged on the switch SW1 and the connector CON of such a type so as to be vertically movable. The key top 102 is formed with a projection 102a so as to contact the button B and an opening 102b so as to face the connector CON. Further, as shown in FIGS. 7 and 8, a transparent cover 104 is attached on such a key top 102 with a name plate 103 interposed therebetween. For example, as shown in FIG. 9, a name indicating an installation location of the lighting fixture 4 such as “corridor”, “stairs”, or “office” is written in the name plate 103.
2. The name plate 103 and the transparent cover 104 are attached so as to be exposed through the opening of the decorative panel 105 on the front.

In such a configuration, when the transparent cover 104 and the name plate 103 are removed when performing the setting operation, the opening 102 of the key top 102 is exposed from the decorative panel 105 as shown in FIG. A connector (not shown) on the setter 10 side is inserted through the transmission line L11 to L1 as shown in FIG.
4 and buses 41 to 43 as shown in FIGS. 4 to 6 can be formed. When the setting operation is completed, the transparent cover 104 and the name plate 103 are fitted on the key top 102, thereby preventing the appearance from being impaired.

[0042]

As described above, according to the first aspect of the present invention, a terminal unit connects a signal line for receiving a signal from a central control unit to a setting unit via a first wired line. Connection, and the setting device shifts the terminal device from the normal operation mode to the setting mode by short-circuiting the first line.
The terminal can be shifted from the normal mode to the setting mode from the setting device by a simple method and configuration.

According to the second aspect of the present invention, the terminal device is shifted from the normal operation mode to the setting mode by continuing the ON time of the transistor on the setting device side for a predetermined time or more. The terminal can be shifted from the normal mode to the setting mode from the setting device.

According to the third and fourth aspects of the present invention, since the setting device communicates with the central control device as a pseudo terminal instead of the terminal device, the address can be addressed to the setting device with a simple method and configuration. Other functions besides the settings can be added.

According to the fifth aspect of the present invention, since the setting device and the terminal device communicate in a bus format, a large amount of data can be transferred from the setting device to the terminal device in a shorter time than serial communication without wireless communication such as infrared rays. Can be set, and the setting operation can be simplified.

According to the sixth and seventh aspects of the present invention, the opening for exposing the connector to the outside is formed in the key top for pressing the switch of the monitoring terminal. The appearance can be prevented from being impaired, and the connector can be provided with a simple structure.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a remote monitoring control system according to the present invention.

FIG. 2 is a circuit diagram showing one embodiment of a terminal and a setting device in the remote monitoring control system of FIG. 1;

FIG. 3 is an explanatory diagram showing signals between a terminal and a central processing unit in the remote monitoring control system of FIG. 1;

FIG. 4 is a circuit diagram illustrating an embodiment of a terminal and a setting device according to the second embodiment.

FIG. 5 is a circuit diagram illustrating an example of a bus in FIG. 4;

FIG. 6 is a circuit diagram showing another example of the bus of FIG. 4;

FIG. 7 is a side sectional view showing a main part of the monitoring terminal.

FIG. 8 is an exploded perspective view showing a main part of the monitoring terminal of FIG. 7;

FIG. 9 is a front view showing the monitoring terminal of FIG. 7;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Central control device 2 Monitoring terminal 3 Control terminal 4 Lighting equipment 5 Transmission line 10 Setting device 12, 31 Data processing unit 13 Storage unit L11, L12 Transmission communication line L13 Common line L14 Setting communication line Tr1, Tr12 Receiving transistor Tr2, Tr10 Transmission transistor 41 Control signal bus 42 Address bus 43 Data bus SW1 Switch CON connector 101 Printed circuit board 102 Key top 102a Projection 102b Opening 103 Name plate 104 Transparent cover

Claims (7)

[Claims] 1. A monitoring terminal for centrally monitoring a load of a lighting fixture or the like, or a remote monitoring and control system in which a control terminal for control and a central control device are connected via a transmission line. When the device sets an address or the like for the terminal device, the terminal device connects a signal line for receiving a signal from the central control device and the setting device via a first line, and Connecting the terminal device and the setting device via a second line and a third line for grounding, the setting device short-circuiting between the first line and the third line, The terminal device is shifted from the normal operation mode to the setting mode, and the terminal device and the setting device communicate with each other via the second and third lines during the setting mode, whereby the setting device addresses the terminal device. It is characterized by setting Remote monitoring and control system to be. 2. The setter turns on the transistor connected between the first line and the third line via the first line for a predetermined time or more, thereby setting the terminal from the normal operation mode. 2. The remote monitoring control system according to claim 1, wherein the system is shifted to a setting mode. 3. The setting device causes the terminal to transition from a normal operation mode to an unusual operation mode by short-circuiting the first line. And performing communication via the third line to shift the terminal device to the pseudo terminal mode. In the pseudo terminal mode, the setting device serves as a pseudo terminal via the first, second, and third lines, The remote monitoring control system according to claim 1, wherein the remote monitoring control system controls a terminal device and performs communication with the central control device. 4. The terminal unit further connects a signal line for transmitting a signal to the central processing unit and a setting unit via a fourth line, and the terminal unit is in a normal operation mode. A first transmission transistor that is turned on and off in accordance with a signal transmitted to the central control device,
The setting device has a second transmission transistor that is turned on and off in response to a signal transmitted to the central control device in the pseudo terminal mode, and the pseudo setting terminal transmits the second transmission transistor in the pseudo terminal mode. 3. The remote monitoring control system according to claim 1, wherein a transmission signal is transmitted to the central control device by turning a transistor on and off. 5. In a remote monitoring and control system in which a monitoring terminal for centrally monitoring a load of a lighting fixture or the like and a control terminal for controlling and a central controller are connected via a transmission line, When the device sets an address or the like for the terminal device, the terminal device and the setting device are connected via a bus, and the setting device changes the terminal device from the normal operation mode via the bus. A remote monitoring control system, wherein the setting mode is shifted to a setting mode, and the setting device sets an address or the like for the terminal device in the setting mode. 6. A remote monitoring and control system in which a monitoring terminal for centrally monitoring a load of a lighting fixture or the like, or a control terminal for controlling and a central controller are connected via a transmission line, The monitoring terminal device arranges the connector connected to the connector on the setting device side close to the built-in switch component, and exposes the connector to the outside on a keytop for pressing the switch component. Wherein the key top is covered by a removable transparent cover. 7. The remote monitoring control system according to claim 6, wherein a center position of the switch component and a center position of the key top are shifted.