JPH0822109B2 - Address setting method for remote monitoring and control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an address setting method for a remote monitoring control system for performing data transmission with a central control unit or a plurality of terminals connected via signal lines. It is about.

[Conventional technology]

As shown in FIG. 3, this type of remote monitoring control system includes a central control device 31, a plurality of monitoring terminals 32 having unique addresses, a control terminal 33, and a wireless relay terminal 34. The external interface terminal 35 and the pattern setting terminal 36 are connected via a pair of signal lines 37. Switches S1 to S4 such as wall switches are connected to the monitoring terminal 32 as monitoring inputs. Central controller
The transmission signal V _s transmitted from the signal line 31 to the signal line 37 is, as shown in FIG. 4 (a), a start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and each terminal device 32 to 8-bit address data signal A to call 36
D, control data signal CD for transmitting control data for controlling loads L1 to L4, checksum data signal CS and each terminal device 32
It is a multi-pole (± 24V) time division multiplex signal composed of a return standby signal WT for setting a return period from ~ 36, and data is transmitted by pulse width modulation. In each terminal 32 to 36, the transmission signal V _s received via the signal line 37
Control data of the transmission signal V _s when the set address data matches the set address data of the transmission signal V _s , and the monitoring data signal is sent in synchronization with the return standby signal WT of the transmission signal V _s to the current mode signal (signal line 37). Signal is sent out by short-circuiting between the two via a suitable low impedance). Further, the central control unit 31, the dummy signal transmitting means for constantly transmitting a dummy transmission signal in which the mode data signal MD is a dummy mode, and the monitoring terminal 32,
Wireless relay terminal 34, external interface terminal
When an interrupt signal V _i as shown in FIG. 4 (b) returned from any one of the 35 and the pattern setting terminal device 36 is received, the terminal device 32 to 36 which generated the interrupt is detected and the terminal Interrupt processing means for accessing the devices 32 to 36 and returning the monitoring data. Further, in the central controller 31, as described above, the monitoring terminal 32 or the wireless relay terminal 34, the external interface terminal 3
5, based on the monitoring data returned from the pattern setting terminal device 36 to the central control unit 31 to create a control data to be transmitted to the control terminal device 33 for controlling the corresponding loads L1 ~ L4, the control data The loads L1 to L4 are controlled by time division multiplexing transmission to the control terminal device 33 via the signal line 37. When the state of the loads L1 to L4 of the control terminal 33 changes, the control terminal 33 returns the monitoring data of the states of the loads L1 to L4 to the central control unit 31 via the signal line 37, and the central control is performed. The device 31 time-division multiplex-transmits the control data to the corresponding monitoring terminal device 32 via the signal line 37 based on the monitoring data, and LEs of the wall switches S1 to S4 of the monitoring terminal device 32 are transmitted.
It is designed to change the D display.

The wireless relay terminal 34 includes an optical wireless oscillator Y,
A terminal device for data relay of an optical wireless system, which includes an optical wireless receiver X and a wireless system signal line 38. The optical signal transmitted from the optical wireless oscillator Y is received by the optical wireless receiver X and received. The data is received via the wireless system signal line 38, and the data is transferred to the central control unit 31. The external interface terminal device 35 is a terminal device that performs data transmission with the external control device 39, and the pattern setting terminal device 36 receives the pattern control data input from the data input unit 40 from the central control device 31. It is a terminal device to transfer to. The control terminal 33 disposed in the distribution board 41 or the relay control board 41a is set to the distribution board agreement size,
A remote control relay for load control (a latching relay that can be turned on and off by a hand switch) 42 is controlled by the control output.

Further, according to JP-A-1-138892, in a terminal device of a remote monitoring and control system, a nonvolatile memory is provided inside so that address data and function data are stored in the memory and provided separately. A technique has been proposed in which a wireless signal is received from a setting device and data is written in the memory. When this technique is used to set the address of the terminal device, as shown in FIG. 5, the address data to be set is input from the input unit 22 of the address setting device 20. Then, the signal including the address data is transmitted from the signal transmitting unit 21 to the signal receiving unit 27 of the terminal device 25. Upon receiving the signal, the terminal device 25 stores the address data included in the signal in the address storage unit 26.

[Problems to be Solved by the Invention]

In the above-mentioned conventional example, when setting the address of the terminal, it is necessary to associate the address of the terminal from the device name of the device controlled by the terminal using the correspondence table and set the address. . In some cases, the device number of the device controlled by the terminal is written on the design drawing, the device name is confirmed from the device number, and the address of the device is matched from the device name using the correspondence table. It was Therefore, the address setting work is troublesome, and an address setting error often occurs due to an error in checking the address data.

In addition, when the load is controlled by the terminal device, there are terminal devices that should not be used because of insufficient capacity of the terminal device or difference in purpose of use depending on the load. For example, if a 3A rated relay terminal is used to open and close the outlet circuit, it cannot be used because the current rating is exceeded, and a 20A relay terminal must be used. There is a dimming terminal for phase control for dimming an incandescent lamp, but this dimming terminal cannot be used for dimming a fluorescent lamp. As described above, if the unusable terminal device is used, there is a problem that the terminal device may be broken, the load side may be broken, or in the worst case, a fire may be caused.

The present invention has been made in view of the above points, and an object thereof is to simplify a setting operation to eliminate a setting error when setting an address in a terminal device, and to prevent a terminal device allocation error. It is to provide an address setting method for a remote monitoring control system.

[Means for solving the problem]

According to the present invention, a plurality of terminals each having an address set uniquely are connected to a central control unit through a pair of signal lines, and a transmission signal sent from the central control unit causes the central control unit and each terminal to communicate with each other. Data is time-division-multiplexed between them, and the transmission signal includes address data for accessing each terminal, control data for controlling the load connected to the terminal,
An address setting method for a terminal in a remote monitoring and control system that includes a return standby signal for setting a return period of data from the terminal, including an address storage unit that stores address data for transmission, and A terminal type storage unit that stores a type, a signal reception unit that receives a signal including address data written in the address storage unit,
A terminal unit having a signal transmitting unit for transmitting a signal including the terminal unit type data stored in the terminal unit type storage unit;
A signal receiving unit for receiving a signal including terminal type data from the terminal unit, a signal transmitting unit for transmitting a signal including address data to the terminal unit, and a device name to be set in the terminal unit. The input unit to be input and the device name input from the input unit are converted into address data, and whether or not the terminal unit to be set is a settable type terminal unit is determined by using the terminal unit type data. An address setting device having a conversion table to be searched is provided, and the address of the terminal device is set by inputting a device name into the address setting device.

[Action]

According to the address setting method of the remote monitoring and control system of the present invention, when setting an address in the terminal, the device name of the device to be set is input from the input unit of the address setting unit, and the terminal type storage unit of the terminal is input. Whether the signal containing the type data of the terminal device output through the signal transmitting unit is taken in by the signal receiving unit, and whether the terminal device can be set for the device having the input device name by the conversion table In addition to determining whether or not it is possible to set, a signal including the address data of the terminal corresponding to the device name is transmitted from the signal transmitting unit to the terminal. In the terminal device, the signal receiving section receives the signal including the address data, and the address data is stored in the address storage section.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention.
Is an address setter, the input unit 11, the conversion table 12,
It has a signal transmitter 13 and a signal receiver 14. The input unit 11 is for inputting a device name of a device to be set. As shown in FIG. 2, the conversion table 12 converts the device name input from the input unit 11 into address data, and
It is a table for confirming whether or not the terminal device for which an address is to be set is of a type capable of controlling the device having the input device name. The signal transmission unit 13 transmits a signal including address data to the terminal device.
The signal receiving unit 14 receives a signal transmitted from the terminal device.

Reference numeral 15 is a terminal device for which an address is to be set, and includes a signal reception unit 16, an address storage unit 17, a terminal device type storage unit 18, and a signal transmission unit 19. Signal receiver 16 is an address setter
It receives a signal including address data transmitted from 10. The address storage unit 17 is for storing the address data included in the signal received by the signal receiving unit 16, and since it is necessary to hold the address data even when power is not supplied to the terminal device 15. A non-volatile memory is used. The terminal device type storage unit 18 stores the terminal device type indicating what kind of terminal device the terminal device is. This terminal type indicates the type of 3A relay terminal, 20A relay terminal, dimming control terminal, etc., and should be set in advance at the time of manufacturing the terminal. The signal transmission unit 19 is for transmitting the terminal device type data from the terminal device type storage unit 18 to the address setting unit 10.

Note that it is convenient to print out the contents of the conversion table shown in FIG. 2 so that it is possible to see at a glance which device can control which device with which device name.

Next, an operation of setting an address to the terminal according to this embodiment will be described. First, a device to be set, for example, a chandelier is selected, and the device name “chandelier” is input from the input unit 11 of the address setting device 10. The address setter 10 receives the terminal device type data from the terminal device type storage unit 18 of the terminal device 15 which is about to set an address via the signal transmission unit 19 in the signal receiving unit 14, and the conversion table 12 causes the terminal device 15 to receive the data. Check whether the load of the device name "Chandelier" entered can be controlled. Now, assuming that the terminal 15 is a dimming control terminal, the conversion table of FIG.
Since the load of the device name "Chandelier" can be controlled,
Furthermore, the conversion table is searched for address data “1” corresponding to the device name “chandelier”, and the signal transmission unit 13
Transmits a signal including the address data “1” to the terminal device 15. If the terminal 15 cannot control the load of the device name, an error display or the like may be displayed. In the terminal device 15, the signal receiving unit 16 receives the signal including the address data “1” and stores the address data “1” in the address storage unit 17. In this way, the address of the terminal 15 is set to "1".

Therefore, according to the present embodiment, when the device name is input from the input unit 11 of the address setting device 10, the address of the terminal device 15 is automatically set. Moreover, the terminal device that is going to import the device type data and set the conversion table
Since 15 identifies whether or not the device is a device capable of controlling the device, there is no mistake in allocating the device.

〔The invention's effect〕

As described above, according to the address setting method of the remote monitoring and control system of the present invention, when setting an address in the terminal, the device name of the device to be set is input from the input unit of the address setting unit, and the terminal is set. The signal reception unit captures a signal including the terminal device type data output from the terminal device type storage unit of the terminal device type storage unit according to the conversion table, Whether or not it is settable is determined, and if it is settable, a signal including address data of the terminal device corresponding to the device name is transmitted from the signal transmission unit to the terminal device.
In the terminal device, the signal receiving unit receives the signal including the address data, and the address data is stored in the address storage unit. Therefore, when setting the address in the terminal device,
It was possible to provide an address setting method for a remote monitoring and control system that simplifies the setting operation, eliminates setting mistakes, and eliminates terminal assignment errors.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing a conversion table according to the same, FIG. 3 is a block diagram showing a remote monitoring control system according to the present invention, and FIG. FIG. 5 is a format diagram showing a transmission signal according to the above, and FIG. 5 is a block diagram showing a conventional example. 10 …… Address setting unit, 11 …… Input unit 12 …… Conversion table, 13 …… Signal transmitting unit 14 …… Signal receiving unit, 15 …… Terminal unit 16 …… Signal receiving unit, 17 …… Address storage unit 18 ...... Terminal device type storage unit, 19 ...... Signal transmission unit

Claims (1)

[Claims] 1. A plurality of terminals each having an address set uniquely are connected to a central control unit through a pair of signal lines, and the central control unit and each terminal unit are connected by a transmission signal transmitted from the central control unit. Data is time-division-multiplexed between, and the transmission signal includes address data for accessing each terminal, control data for controlling a load connected to the terminal,
An address setting method for a terminal in a remote monitoring and control system that includes a return standby signal for setting a return period of data from the terminal, including an address storage unit that stores address data for transmission, and A terminal type storage unit that stores a type, a signal reception unit that receives a signal including address data written in the address storage unit,
A terminal unit having a signal transmitting unit for transmitting a signal including the terminal unit type data stored in the terminal unit type storage unit;
A signal receiving unit for receiving a signal including terminal type data from the terminal unit, a signal transmitting unit for transmitting a signal including address data to the terminal unit, and a device name to be set in the terminal unit. The input unit to be input and the device name input from the input unit are converted into address data, and whether or not the terminal unit to be set is a settable type terminal unit is determined by using the terminal unit type data. An address setting method for a remote monitoring and control system, comprising an address setting device having a conversion table for searching, and setting an address of a terminal device by inputting a device name to the address setting device.