JP3273645B2 - Operation monitoring terminal for remote monitoring and control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation monitoring terminal of a remote monitoring control system for giving a load operation command and a load operation state monitoring command to a central control unit.

[0002]

2. Description of the Related Art As a remote monitoring and control system, a central control unit and a plurality of terminals are connected by a pair of signal lines, and signals are transmitted by time division multiplexing between the terminal and the central control unit. In addition, the operation control and operation monitoring of the load connected to the terminal device can be collectively performed by the central control device.

The transmission signal transmitted from the central control unit to the terminal includes a start pulse, address data for setting an address individually set to the terminal, mode data indicating the type of the transmission signal, and control contents. Control data shown,
And a return waiting period in which the monitoring data is returned from the terminal device. The central controller specifies a terminal that transmits a transmission signal using address data, and individually accesses each terminal to transmit the transmission signal. Here, the central controller sequentially accesses each terminal device cyclically.

The above-described signal transmission is normally performed, but in order to execute an urgent process, an interrupt process can be executed. In this interrupt processing, the terminal which needs urgent processing sends an interrupt pulse to the central control device in synchronization with the start pulse, so that the central control device executes the interrupt process.

[0005]

In a conventional remote monitoring control system of this kind, an operation monitoring terminal for performing an operation for controlling the operation of a load is provided on a signal line, and a central control terminal is provided from the operation monitoring terminal. There is an apparatus in which a load operation control command is given to a device so that the operation state of the load can be checked.

[0006] As shown in FIG.
Numeric keypad 1 for inputting the address of the terminal, display 2 for displaying the address input by the numeric keypad, clear switch SW ₁ for clearing the address input by the numeric keypad 1, terminal for the address input by the numeric keypad 1 on the load corresponding to an oN switch SW ₂ and off the switch SW ₃ for turning off, the monitor switch SW ₄ is operated to monitor the operating state of the load, the operation of the load when monitoring the operating state of the load It is composed of _two light emitting diodes LED ₁ and LED ₂ indicating the state.

This operation monitoring terminal A is formed in a size module of a ready-made wall-mounted wiring device, and can be embedded in the wall using a mounting frame 10 used for mounting the ready-made wiring device on the wall. I can do it. For this reason, a terminal portion 11 connected to a signal line connecting the central control device and the terminal device is provided on the back surface. In this operation terminal, the address of the terminal device which load is connected to want to operate monitoring keypad for 1, pressing the monitor switch SW _4. At this time, the operation state of the load is the light emitting diode LE.
Check the display of D ₁ and LED ₂ . The light emitting diodes LED ₁ and LED ₂ emit red and green light. For example, red indicates a load operation state and green indicates a load operation stop state.

However, in this method, when monitoring successive address of the next operation of the load, to clear the address currently monitored by the clear switch SW _1, enter the address again the keypad 1, the monitor switch SW
You need to press ₄ . The present invention has been made in view of the above points, and an object of the present invention is to provide a remote monitoring control system capable of easily confirming an operation state of a load connected to a terminal set with a continuous address. Is to provide.

[0009]

According to the present invention, in order to achieve the above object, when a monitor switch is continuously pressed, an address switching means for sequentially switching an address input by a ten-key each time the monitor switch is pressed, Monitoring command output means for giving a monitoring command to the terminal at the address to the central control device.

[0010] In order to clearly indicate the case of a transmission error, it is preferable that the light emitting diode be turned on and off alternately when a transmission error occurs. When a registration number registered corresponding to an address is input using a numeric keypad, a rewritable memory is used to store the correspondence between the registration number and the address, and the correspondence between the registration number and the address is changed. Preferably, the change setting means is provided in the operation monitoring terminal.

Further, when the correspondence between the registration number and the address is changed, it is preferable to display the change on the display unit.

[0012]

The present invention has the above-described structure,
In order to check the operation status of the load connected to the terminal to which the address has been continuously set, the monitor switch is continuously pressed, and the address is automatically switched sequentially, and the load is sent to the central control unit. Are sequentially given, and the operation can be continuously confirmed by the display of the light emitting diode at that time.

[0013]

An embodiment of the present invention will be described below. In the present embodiment, for example, since it is used for remote monitoring control of the lighting load in a hotel or the like, more specifically, the lighting control of the lighting load of each room is performed by a remote monitoring control system, and the terminal has an address of each. The following description is made assuming that the room number is set as the address and the room number is set as the address.

First, the number of the room in which the lighting load to be checked is installed is input using the numeric keypad 1 described with reference to FIG. And
Monitor switch SW ₄ is pressed. A synchronization pulse for interrupt processing is output from the operation monitoring terminal to the central controller. In the central controller receiving this synchronization pulse,
A process for specifying which terminal is the interrupt request is performed, and the interrupt request terminal is accessed. In response to this access, an operation monitoring command is given from the operation monitoring terminal according to the present invention to the central controller. In the operation monitoring command at this time, the central control unit recognizes that the operation monitoring of the specific lighting load is performed by setting the room number.

At this time, the central control unit transmits a transmission signal for returning the monitoring data to the terminal connected to the lighting load to be monitored. In response, the terminal checks and detects the driving state of the relay that controls the operating state of the lighting load,
The monitoring data indicating the lighting state of the lighting load at that time is returned to the central control device. The central controller sends the monitoring data to the operation monitoring terminal, and based on the monitoring data, the control unit of the operation monitoring terminal controls the light emitting diode LED.
₁ , LED ₂ lighting control. As a result, the operator who operates the operation monitoring terminal can change the light emitting diodes LED ₁ , L
The lighting state of the lighting load can be confirmed from the lighting state of the ED ₂ .

[0016] Then, when confirming the lighting state of the lighting load consecutive room number corresponding to the set terminal unit turns on the monitor switch SW ₄ again. The ON operation of the monitor switch SW _4, the control unit of the operation monitoring terminal device rewrites the room number entered by the ten-key to the next room number, giving the monitoring command to the central controller.

Hereinafter, the operation monitor is operated in the same manner as described above.
Light emitting diode LED for visual terminal ₁, LED_TwoDisplay of
Check the lighting status of the lighting load of the next room number from
Can be. The above operation is performed by the clear switch SW₁Push
Repeated until By the way, the control operation end
If a transmission error occurs at the terminal,
LED₁, LED_TwoOnly disappears,
However, it cannot be determined what kind of abnormality is.

Therefore, in the case of a transmission error, the light emitting diodes LED ₁ and LED ₂ may be turned on and off alternately. In this way, transmission errors can be clearly identified,
Easy maintenance. As shown in FIG. 2, the remote monitoring control system is provided with a thermal switch D which detects a human body by detecting a heat ray and turns on and off depending on the presence or absence of a person. In addition, there is an apparatus in which the lighting load can be controlled according to the human body sensing state of the thermal switch. In other words, when there is a person in the room, the lighting load is turned on by the thermal switch, and when there are no more people, the lighting load is turned off. In addition,
In the remote monitoring control system, the central controller A and the terminal B are connected by a two-wire signal line L, and the central controller A controls and monitors the lighting load C. Although not shown, the operation monitoring terminal described above is also provided.

However, even when a person is in the room, it is necessary to prevent the operation of the lighting load from being controlled by the sensing output of the thermal switch depending on the time zone such as at night. For this reason, a timer is provided in the human body detection sensor so that it operates only in a specific time zone, for example, only in the daytime. The setting change of the setting time of the timer is performed using the optical wireless setting device E. This set time is stored using an EEPROM or the like of the thermal switch.

By the way, a table showing the correspondence between the address of the terminal and the room number (may be another registration number) in the above-mentioned operation monitoring terminal is stored in a memory (ROM), and the room number is entered using a numeric keypad. Is input, the address of the corresponding terminal is added to the transmission signal.
However, in the case described above, it is necessary to replace the memory in order to change the correspondence between the room number and the terminal or to increase the number of terminals. When the correspondence between the room number and the terminal is changed or the number of terminals is increased, a change switch for changing the registration number and a shift switch for shifting the registration number are used as switches of the operation monitoring terminal. A memory (EEPROM) whose storage content is rewritable may be used as the memory.

When the display unit 2 is a liquid crystal display and a registration number is inputted by the ten keys 1, the registration number and the converted switch address and its type (individual, pattern, group, dimming) , Etc.) is preferably displayed.

[0022]

As described above, according to the present invention, when the monitor switch is continuously depressed, the address switching means for sequentially switching the address input by the ten keys each time the monitor switch is depressed, and a monitoring command for this address to the terminal. And monitor command output means for providing the central control unit with a monitor command, so that when checking the operation state of the load connected to the terminal to which the address is set, the monitor switch is continuously pressed to display the light emitting diode. Can be confirmed, and the confirmation operation can be easily performed.

When a light emitting diode is turned on and off alternately when a transmission error occurs, the case of a transmission error can be clearly shown. When a registration number registered corresponding to an address is input using a numeric keypad, a rewritable memory is used to store the correspondence between the registration number and the address, and the correspondence between the registration number and the address is changed. By providing the change setting means in the operation monitoring terminal, the correspondence between the registration number and the address can be changed.

Further, it is preferable to display the contents of the change on the display unit, in the case where the correspondence between the registration number and the address is changed, since the contents of the change can be accurately grasped.

[Brief description of the drawings]

FIG. 1 is a flowchart showing an operation of a main part of an embodiment of the present invention.

FIG. 2 is a system configuration diagram when a thermal switch is provided in parallel with a remote monitoring control system.

FIGS. 3 (a) to 3 (c) are a front view, a side view, and a cross-sectional view taken along the line A-P of the operation monitoring terminal according to the first embodiment.

[Explanation of symbols]

1 Numeric keypad 2 Display SW ₄ Monitor switch

Claims (4)

(57) [Claims] 1. A central control device and a plurality of terminals are connected by a pair of signal lines, signal transmission is performed by time division multiplexing between the terminal and the central control device, and a load connected to the terminal is controlled. In a remote monitoring control system for centrally monitoring and controlling operation control and operation monitoring by a central control device, an operation monitoring terminal for giving a load operation command and a load operation state monitoring command to the central control device, the terminal being adapted to the load. Numeric keypad for inputting the address of the terminal to be monitored, a monitor switch pressed after inputting the address by the numeric keypad when checking the operation state of the load, and a light emitting diode of a different luminescent color for individually displaying the operation state of the load during monitoring. Address switch means for sequentially switching the address input by the ten keys each time the monitor switch is pressed,
A monitoring command output means for giving a monitoring command to the central control device at the address of the address to the central control device. 2. The terminal for operation and monitoring of a remote monitoring and control system according to claim 1, wherein said light emitting diode is turned on and off alternately when a transmission error occurs. 3. When a registration number registered in correspondence with an address is input using a numeric keypad, a rewritable memory is used as a memory for storing the correspondence between the registration number and the address. 2. The operation monitoring terminal of the remote monitoring control system according to claim 1, wherein a change setting means for changing the correspondence is provided in the operation monitoring terminal. 4. The terminal for operation and monitoring of a remote monitoring and control system according to claim 3, wherein the display unit displays the contents of the change.