JPH0720288B2 - Remote monitoring controller - Google Patents

Description

Description: TECHNICAL FIELD The present invention allows a master terminal to access a monitoring terminal device to return monitoring data indicating a state of an operation switch, and load control data formed based on the monitoring data. The present invention relates to a remote monitoring and control device adapted to perform time division multiplex transmission from a master unit to a control terminal device.

BACKGROUND ART As shown in FIG. 1, a remote monitoring control device of this type for remotely controlling a load such as a lighting device is provided with a plurality of unique addresses to monitor the states of operation switches SW _{1 to} SW _n . Monitoring terminal 2 and each operation switch with unique address set
Load L ₁ and a plurality of control terminal unit 3 for controlling the ~L _n, operation monitoring data indicating the state of the operation switch SW ₁ to SW _n by accessing each monitoring terminal device 2 corresponding to the SW ₁ to SW _n And the corresponding control terminal 3 is accessed to connect the master unit 1 that transmits the load control data formed based on the monitoring data to the traffic signal 4, and the master unit 1 and each terminal unit 2 are connected. Both data have been time-division multiplexed. By the way, in such a remote monitoring control device, it is necessary to set the unique address by associating the monitoring terminal device 2 and the control terminal device 3, but conventionally, the unique address is set by the address setting switch. In general, the address setting switch is arranged in a hidden position that is difficult to operate so as not to be erroneously operated. Therefore, when changing the existing system, when changing the unique address, the entire device or the cover must be removed and the address setting switch composed of a small switch must be operated, which makes changing the unique address troublesome. There was a problem.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to make it possible to easily change the address of a monitoring terminal and prevent an address setting error. It is to provide a remote monitoring control device capable of performing the above.

DISCLOSURE OF THE INVENTION (Embodiment) FIG. 1 to FIG. 4 show an embodiment of the present invention, in which operation monitoring data and load control data are exchanged between the master device 1 and each terminal device 2, 3. In a remote monitoring control device similar to the conventional example that is configured to perform division multiplex transmission, a normal monitoring control mode,
Mode switch 15 that switches the address setting mode,
When the mode switch 15 is switched to the address setting mode, the base unit 1 is provided with a transmission signal sending means for accessing the appropriate control terminal 3 and sending the transmission signal Vs in the address setting mode. Access display means for displaying that the loads L _{1 to} L _n are accessed in a predetermined control state when accessed by the transmission signal of the control terminal 3, and the rewritable nonvolatile memory 21. And the operation switch SW while the transmission signal Vs in the address setting mode is being received.
_The monitoring terminal 2 is provided with address writing means for determining its own address based on the address data of the signal and writing it in the nonvolatile memory when _{1 to} SW _n are operated.

Here, the parent device 1 includes a reply detection unit 10, a determination processing unit 11,
It is composed of an address creating section 12, a control data creating section 13, a signal sending section 14, and a mode switch 15. In the judgment processing section 11, the mode switch 15 is set to the normal monitoring control mode side. Check whether the address setting mode is set or not, and in the normal monitoring control mode, the loads L _{1 to} L _n to be controlled based on the monitoring data received via the reply detection unit 10 The normal transmission signal Vs for accessing the connected control terminal 3 to transmit the load control data is transferred from the signal transmission unit including the address generation unit 12, the control data generation unit 13 and the signal transmission unit 13 to the signal line 4. It is designed to be sent out. As shown in FIG. 5 (a), this transmission signal Vs is composed of a start synchronization signal ST, an address data signal AD, and a load control data signal CD,
The period from the transmission of the load control data signal CD to the next start synchronization signal ST is set as the return waiting period W during which the return signal Vb can be received. In the embodiment, since the unique addresses of the monitoring terminal device 2 and the control terminal device 3 that correspond to each other 1: 1 are set to be the same, the master device 1 uses the transmission signal Vs for both terminal devices 2 and 3. Are simultaneously accessed to return the operation monitoring data from the monitoring terminal device 2 to the return waiting period W, and new load control data to be transmitted to the corresponding control terminal device 3 is formed, and new load control is performed in the next access cycle. The data is transmitted to the corresponding control terminal 3 to control the loads L _{1 to} L _n . On the other hand, when the mode switch 15 is set to the address setting mode side, the determination processing unit 11 controls the transmission signal Vs in the address setting mode for transmitting the data indicating the address setting mode instead of the load control data. The transmission signal Vs in this address setting mode is adapted to be sequentially transmitted to the terminal device 3.
When a reply signal from any of the monitoring terminals 2 is received during the return waiting period W of, the transmission signal Vs in the address setting mode for accessing the next controlling terminal 3 is transmitted and the same operation is performed. It's supposed to repeat. The transmission signal detecting means for transmitting the transmission signal Vs in the address setting mode is formed by the judgment processing unit 11 and the signal transmission unit.

Further, the monitoring terminal device 2 includes a signal receiving unit 20, a non-volatile memory 21, a determination processing unit 22, and a reply signal sending unit 23. In the determination processing unit 23, the signal receiving unit 20 is used. If the normal transmission signal Vs is received, the transmission signal Vs
When the address data transmitted in the above, and the own unique address set in the address setting means composed of the non-volatile memory 21 are determined to match, and an address match is obtained,
During the return waiting period W of the transmission signal Vs, the reply signal sending section 23 sends the reply signal Vb indicating the operation state of the operation switch SW _n . On the other hand, when the transmission signal Vs in the address setting mode is received, the operation switch SW
Check whether _n is operated and operate switch SW _n
When is operated, the address data transmitted by the transmission signal Vs is written in the nonvolatile memory 21 as the address setting means as its own unique address, and the monitoring data indicating that the operation switch SW _n is operated is returned. The signal Vb is sent during the return waiting period W. The nonvolatile memory 21 is formed by an EEPROM or a RAM equipped with a backup battery, and the address writing means is formed by the determination processing unit 22.

Further, the control terminal device 3 includes a signal receiving unit 30, an address setting unit 31, a determination processing unit 32, and a relay output unit 33 including a load control relay Ry and a driving transistor Q. In the processing unit 32, when the normal transmission signal Vs is received by the signal receiving unit 30, it is determined whether the address data and its own unique address match, and when the address matching is obtained, the address data The load control data transmitted subsequently to the above is fetched, the load control relay Ry is driven, and the load L _n is turned on / off.
On the other hand, when the transmission signal Vs of the address setting mode is received, and sets the address match, if the address match is obtained on the load L _n at regular intervals, the load control relay Ry to turn off It is designed to drive and display access. In addition, in the embodiment, the access display means is formed of the determination processing unit 32, the relay output unit 33, and the loads L _{1 to} L _n, but an access display lamp or the like may be provided separately. In addition, the load L _n is turned on from the base unit 1 at regular time intervals,
It goes without saying that the transmission signal Vs in the address setting mode for turning off may be transmitted.

The operation of the embodiment will be specifically described below. Now
When the mode switch 15 of the master unit 1 is turned off and set to the normal monitoring control mode side, the master unit 1 sequentially cyclically accesses the terminals 2 and 3 as shown in FIG. 5 (a). As shown in FIG. 5 (b), the operation terminals SW ₁ , are operated in synchronization with the predetermined return waiting period W from the monitoring terminal 2 which has received the address match by transmitting the transmission signal Vs as shown in FIG.
SW ₂ ... SW _m , SW _n , S ₁ ... Monitoring data indicating the operation state is returned by the reply signal Vb. In the master unit 1, the corresponding load L ₁ based on the returned operation monitoring data
~ Create new load control data to control L _n , transmit the new load control data to the control terminal 3 to which the same unique address as each monitoring terminal 2 is set in the next access cycle, and load L Operation switch SW _{1 to} SW _n corresponding to _{1 to} L _n
Control according to the operating state of. At this time, the operation switch SW from the monitoring terminal 2 that is being accessed at the same time.
Monitoring data indicating the operation states of _{1 to} SW _n are returned to the master device 1, and the same monitoring control operation is repeated.

On the other hand, when the mode switch 15 is turned on and set to the address setting mode side, first, in FIG. 6A, the master device 1 first accesses the control terminal device 3 having the unique address “1”. The transmission signal Vs as shown is repeatedly transmitted. In the control terminal 3 having the unique address "1", the determination processing circuit 32 operates in the address setting mode by receiving the transmission signal Vs and transmitting the transmitted data indicating the address setting mode, and The relay output unit 33 is controlled so that L ₁ is turned on and off at fixed time intervals. In addition, the determination processing unit 22 of each monitoring terminal device 2 enters the address setting standby state when the transmission signal Vs in the address setting mode is received, and displays the access as shown in FIG. 6 (b). Operating switch to respond to load L ₁
When operating the SW _3, with "1" is written as a unique address in the nonvolatile memory 21 of the monitoring terminal device 2 for monitoring the operation switch SW _3, as shown in FIG. 6 (e), the operation switch SW ₃ A reply signal Vb indicating that it is operated is returned to the master unit 1. Upon receiving the return signal Vb, the base unit 1 considers that the address setting for the transmission signal Vs currently being transmitted has been completed, cancels the transmission of the transmission signal currently being transmitted, and the unique address becomes "2". Then, the transmission signal Vs in the address setting mode for accessing the next control terminal device 3 which is set to is transmitted. In the control terminal 3 accessed by the transmission signal Vs, as in the case described above, the connected load L ₂ is turned on / off at a constant time interval to display an access. In this state, as shown in FIG. 6 (c), when operating the operating switch SW ₂ should correspond to the load L _2, the nonvolatile memory 21 of the monitoring terminal device 2 for monitoring the operation switch SW ₂ as a unique address “2” is written, and the reply signal Vb indicating the address setting is sent back to the master device 1. Similarly, when the control terminal 3 having the unique address “3” to be set is being accessed, the operation switch
When SW _n is operated (shown in FIG. 6 (d)), the load L ₃ is controlled by the operation switch SW _n so that the monitoring terminal 2
The unique address of is set.

As described above, by switching the mode switch 15 of the parent device 1 to the access setting mode side and turning on and off at a constant time interval, the operation switch SW ₁ that should correspond to the loads L _{1 to} L _n displayed as the access simply manipulating to SW _n, control terminal which controls the load L ₁ ~L _n corresponding address of the monitoring terminal device 2 to the operation switch SW ₁ to SW _n monitoring the operation switch SW ₁ to SW _n It can be set to correspond 1: 1 with the address of 2. Therefore,
Since it is not necessary to operate a small address setting switch which is difficult to operate as in the conventional example, it is possible to easily change the address of the monitoring terminal 2 of the existing system, and moreover, the operation switches SW _{1 to} SW _n and the load. Since the address setting is performed while actually checking the correspondence with L _{1 to} L _n , the address setting error can be prevented.

EFFECTS OF THE INVENTION As described above, according to the present invention, the master terminal accesses the monitoring terminal to return the monitoring data indicating the state of the operation switch, and the load control data formed based on the monitoring data is transmitted to the master device. In the remote monitoring control device that accesses the control terminal device from the above to perform time division multiplex transmission, a mode switch for switching between the normal monitoring control mode and the address setting mode, and when the mode switch is switched to the address setting mode The master unit is provided with an address setting mode signal sending means for sending an appropriate control terminal device to send a transmission signal in the address setting mode, and a predetermined load is applied when accessed by the transmission signal in the address setting mode. The control terminal is provided with an access display means for displaying that it has been accessed in the controlled state, and rewriting is possible. Address setting means composed of a non-volatile memory, and when the operation switch is operated while the transmission signal of the address setting mode is being received, the own address is determined based on the address data of the signal and stored in the non-volatile memory. The address writing means for writing is provided in the monitoring terminal device. With the mode switch switched to the access setting mode, the operation switch that corresponds to the load indicated by the access is operated. 1: 1 with the address of the control terminal that controls the load that corresponds to the operation switch
Since it can be set to correspond, there is no need to operate a small address setting switch that is difficult to operate as in the conventional example, so it is possible to easily change the address of the monitoring terminal device, Since the address setting is performed while actually checking the correspondence with the load, it is possible to prevent an address setting error.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention, and FIGS.
The figure is a block diagram of the essential parts of the above, and FIGS. 5 and 6 are explanatory diagrams of the operation of the above. 1 is a master unit, 2 is a monitoring terminal device, 3 is a control terminal device, 4 is a signal line, 15 is a mode switch, 21 is a non-volatile memory, and SW ₁
To SW _n denotes an operation switch, L ₁ ~L _n load.

Claims (1)

[Claims] 1. A plurality of monitoring terminals for setting a unique address to monitor the state of an operation switch, a plurality of control terminals for setting a unique address to control a load corresponding to each operation switch, and each monitor. Access control terminal device to return the operation monitoring data indicating the state of the operation switch, and to access the corresponding control terminal device to transmit the load control data formed based on the monitoring data. In a remote supervisory control device that is connected to a signal line and time-division multiplex-transmits both data between a master unit and each terminal unit, a mode switch for switching between normal supervisory control mode and address setting mode, and the mode Transmission signal sending means for sending a transmission signal in the address setting mode by accessing an appropriate control terminal when the switch is switched to the address setting mode Is provided on the master unit, and when the access is made by the transmission signal in the address setting mode, the access display means for displaying the access by setting the load in a predetermined control state is provided on the control terminal device and rewritable. Address setting means composed of a non-volatile memory, and an address to be written to the non-volatile memory by determining its own address based on the address data of the signal when the operation switch is operated while the transmission signal in the address setting mode is being received. A remote monitoring control device, characterized in that a writing means is provided in a monitoring terminal.