JPH01164198A - Remote supervising control system - Google Patents

Abstract

PURPOSE:To attain a remote control supervising control system not to spoil a pattern control by preventing from making an off a load common to a control pattern corresponding to other pattern control switch when one of the pattern control switches is switched off. CONSTITUTION:Pattern control data corresponding to each are read out and a load included in plural control patterns is switched off when plural pattern control switches are switched off at a terminal for pattern setting 7 in the pattern control means of a central control device 1. On the other hand, when the pattern control switch corresponding to either of control patterns is switched off, a load common to the control pattern of other pattern control switch out of the loads included in the control pattern of the pattern control switch to be switched off. Thus, a part common to other control pattern is not switched off and a control is executed by a normal control pattern.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a remote control system for remotely controlling a load by connecting a central control device and a terminal device with a pair of signal lines, and time-division multiplexing transmission of control data, monitoring data, etc. It relates to a supervisory control system.

[Background technology] Conventionally, a central control unit and a large number of terminal devices having unique addresses are connected through a pair of signal lines, and each terminal device is accessed from the central control unit to time-division multiplex monitor data and control data. In a remote monitoring and control system, when controlling multiple loads at once using pattern control data, a pattern for collective load control is transmitted based on the pattern control switch sent from the monitoring terminal device to the central control device. The pattern control means is configured to read the control data from the data storage section and sequentially access the control terminals connected to the loads to be collectively controlled to send out the control data.

However, in the conventional example described above, when a plurality of pattern control switches are turned on, the control data of the corresponding control pattern is read out and the load is turned on, and at the same time when one of the pattern control switches is turned off. When the pattern control switch was switched off, the load of the control pattern corresponding to that pattern control switch was turned off.
When there is a load common to other control patterns, there is a problem in that the common load is turned off and normal pattern control is no longer performed. For example, f:lS4
As shown in the figure, when the pattern control switch that collectively controls the lighting loads using control pattern X and control pattern Y is turned off and the lighting loads included in both control patterns are turned on, one lighting pattern Y)
When the pattern control switch corresponding to 2 is turned off, the lighting load included in control pattern There was a problem that it became .

[Objective of the Invention 1 The present invention has been made in view of the above-mentioned points, and its purpose is to control the load at once by turning off a plurality of pattern control switches, It is an object of the present invention to provide a remote monitoring and control system in which pattern control corresponding to other pattern control switches having a common load is not impaired by turning off a pattern control switch.

[Disclosure of the Invention] (Configuration) The present invention connects a central control unit and a large number of terminal devices having unique addresses through a pair of signal lines, and allows each terminal device to be accessed and monitored from the central control device. The data and control data are time-division multiplexed, and pattern control data for collective load control is read from the data storage unit based on the pattern control switch operation information sent back from the monitoring terminal to the central control unit. In a remote monitoring and control system in which a central control unit is equipped with a pattern control means that sequentially accesses control terminals connected to loads to be collectively controlled and sends control data, multiple pattern control switches are turned on. When one of the pattern control switches is turned off, the corresponding pattern control data is read and the load is turned on according to a plurality of control patterns. By forming the pattern control means so as not to turn off the load that is common to the control pattern corresponding to the pattern control switch, when the loads are collectively controlled by turning on multiple pattern control switches, any pattern To provide a remote monitoring and control system in which pattern control corresponding to other pattern control switches having a common load is not impaired by turning off a control switch.

(Embodiment) FIG. 1 is a diagram showing a schematic example of a remote monitoring and control system according to the present invention, in which a central control device 1, a plurality of monitoring terminals 2 to which unique addresses are set, and a control It is connected to the terminal device 3 by a pair of signals 1i14, and the central control unit f! As shown in FIG. 1(a), the transmission signal Vs sent from the terminal 11 to the signal line 4 includes a start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and a mode data signal MD indicating the signal mode. Address data signal A that calls
A multi-polar (±2
4v) time division multiplexed signal, and data is transmitted by pulse width modulation.

When the address data of the transmission signal Vs received via signal #14 and its own unique address data match, each terminal device 2 and 3 takes in the control data of the transmission signal Vs, and returns the transmission signal Vs. The monitoring data signal is sent back as a current mode signal (a signal sent by short-circuiting the signal lines 4 via an appropriate low impedance) in synchronization with the standby signal WT.

Further, the central control device 1 includes a dummy signal transmitting means for always transmitting a dummy transmission signal Vs in which the mode data signal MD is set to a dummy mode, and one of the monitoring terminals 2 or C).
The returned interrupt signal Vi as shown in FIG. 1(b)
An interrupt processing means is provided which detects the terminal device 2 in which an interrupt has occurred when the interrupt is received, accesses the terminal device 2, and causes the monitoring data to be sent back. On the other hand, when the monitoring terminal 2 receives a monitoring input due to the operation of the switches S, ~S, it generates an interrupt signal Vi in synchronization with the start pulse signal ST of the dummy transmission signal Vs, and When the transmission signal Vs in address confirmation mode is returned from the central controller 1 [! an interrupt generating means that returns its own unique address data in synchronization with the No. WT, and monitoring data corresponding to the monitoring input when the interrupt access mode transmission signal S in response to the interrupt is transmitted from the central control unit 1. A data return means for returning the data is provided.

The central control device 1 also uses the control terminal i based on the monitoring data sent back from the monitoring terminal device 2 to the central control device 1.
It creates control data to be transmitted to W3, and also transmits it to the control terminal 3 to control L4. The control terminal 3 installed in the distribution panel 41!6 or the relay control panel 6a has the dimensions agreed upon by the distribution panel, and its control output can be used to control a remote control relay for load control (also by a hand switch). A latching relay (5) that can be turned on and off is controlled.

FIG. 2 shows the circuit configuration of the control terminal device 3. The control terminal device 3 includes a power supply circuit 10 that generates a circuit power supply from a transmission signal Vs transmitted via a signal 414, and a power supply circuit 10 that generates a circuit power supply from a transmission signal Vs transmitted via a signal 414. Receive and process the signal as well as return signal vII
A signal processing circuit 11 that forms and transmits a signal, an address setting section 12 that sets a unique address, and four control circuits (corresponding to four control data bits) when controlling one load. It is formed by a circuit number setting section 13 for setting which circuit is used to control the load, a drive circuit 14 for driving a relay circuit 15 for load control, and a monitoring circuit 16 for monitoring the operating state. , the signal processing circuit 11 detects a match between the address data of the transmission signal Vs and the unique address, takes in the control data when a 7-address match is detected, and outputs the control data based on the bit selected by the circuit number setting section 13. Form and output relay 15
At the same time, based on the load monitoring input inputted through the monitoring circuit 16, return monitoring data is formed and sent back to the central control unit 1 using a current mode return signal VB. Note that, instead of providing the circuit number setting section 13 in the control terminal 3, the relay circuit 15 may be formed so that each bit of the control data controls the TfI of the load, thereby forming a four-circuit control circuit.

The W2B diagram shows the monitoring terminal 2, whose circuit configuration is similar to that of the control terminal 3, and in which the monitoring circuit 16 switches the switch S1, such as an individual control switch or a pattern control switch. The status is monitored, monitoring data is formed in the signal processing circuit 11 based on this switch monitoring input, and is sent to the central control unit 1 by the above-mentioned interrupt processing.
The light-emitting diodes L D , , L for ON and OFF indications of the operation display circuit 15
D2 is used to destroy fish based on control data (indicating the operating state of the load) transmitted from the central control device 1. Furthermore, when setting a unique address using the dip switch in the address setting section 12, the lower 6 bits of the 8-bit address data can be set by the user as appropriate, and the upper 2 bits can be set by the manufacturer depending on the type of terminal device ( For monitoring,
For control) For setting, monitoring and control terminal 2,
By simply setting the user setting section of the unique address in No. 3 to the same value, both terminals 2 and 3 can be easily made to correspond. The load L1 connected to the control terminal 3 can be controlled based on the monitoring data. In addition,
In the monitoring terminal 2, a plurality of switches S,, S2...
. . ., the circuit number setting section 13 is not necessary, and the switch states of a plurality of switches S, S2, . . . are input to the monitoring circuit 16. Good.

In addition, the switch status of pattern control switches can be monitored by
This is done by the above-mentioned monitoring terminal 2, and is performed by turning off the pattern control switch or turning off P.
J. When the operation is recognized, the pattern control means of the central controller 1 reads out the pattern control data stored corresponding to the pattern control switch from the data storage section and reads the load control data included in the control pattern. At the same time, the control data for collective load control is sequentially accessed and sent to the control terminals 3 to which the collective control loads are connected, thereby pattern-controlling a plurality of loads at once. . Here, when multiple pattern control switches are turned on, the pattern control data corresponding to each is read out! On the other hand, when a pattern control switch corresponding to any control pattern is turned off, the load included in the control pattern of the pattern control switch that was turned off is turned on. The load off control is performed by not turning off loads that are common to the control patterns of other pattern control switches. Therefore, as shown in FIG.
When the lighting load is turned on, even if the pattern control switch corresponding to control pattern Illumination according to pattern Y will be performed. The setting of the pattern control data is performed using the pattern setting terminal 7 equipped with a data input section 25, and the set data is appropriately transferred to the central control device fa1 and stored in the data storage section. It is meant to be remembered.

[Effects of the Invention 1] As described above, the present invention connects a central control unit and a large number of terminal devices having unique addresses through a pair of signal lines, and accesses each terminal device from the central control unit to collect monitoring data. and the control data are time-division multiplexed, and pattern control data for collective load control is read from the data storage unit based on the pattern control switch operation information sent back from the monitoring terminal to the central control unit. When multiple pattern control switches are turned on in a remote monitoring and control system in which the central control unit is equipped with a pattern control means that sequentially accesses control terminals connected to loads to be collectively controlled and sends control data. , read the corresponding pattern control data and turn on the load according to a plurality of control patterns, and when any pattern control switch is turned off, other of the loads of the control pattern corresponding to the pattern control switch are turned on. The pattern control means is formed so as not to turn off a load that is common to the control pattern corresponding to the pattern control switch, and when the loads are collectively controlled by turning off multiple pattern control switches, either pattern This has the advantage that it is possible to provide a remote monitoring and control system in which pattern control corresponding to other pattern control switches having a common load is not impaired by turning off the control switch.

[Brief explanation of the drawing]

FIG. 1(a) is a schematic configuration diagram of a remote monitoring and control system according to the present invention, FIG. 1(b) is an explanatory diagram of the same operation, FIG. 2 is a block circuit diagram of the same essential parts, and FIG. FIG. 4 is an explanatory diagram of the operation of the same. Agent Patent Attorney Ishi 1) Ai Shichi

Claims (1)

[Claims] (1) A central control unit and a large number of terminal devices having unique addresses are connected through a pair of signal lines, and each terminal device is accessed from the central control unit to time-division multiplex transmission of monitoring data and control data. Then, based on the pattern control switch operation information sent back from the monitoring terminal to the central control device, the pattern control data for collective load control is read from the data storage unit, and the pattern control data for the control devices to which the loads to be collectively controlled are connected is read out from the data storage unit. In a remote monitoring and control system in which a central control unit is equipped with a pattern control means that sequentially accesses terminal devices and sends control data, when multiple pattern control switches are turned on, the pattern control data corresponding to each is read out. When a load is turned on using multiple control patterns and one of the pattern control switches is turned off, the control patterns corresponding to the other pattern control switches among the loads in the control pattern corresponding to the pattern control switch are turned on. A remote monitoring and control system characterized in that a pattern control means is formed to prevent a load from being turned off.