JPH04269097A - Remote supervisory and controlling system - Google Patents

Abstract

PURPOSE:To permit plural systems to collectively execute the setting work of pattern control data and to eliminate the need of the loading/unloading work of a setting unit for a transmission line. CONSTITUTION:Plural terminal equipments 2 for supervisory where addresses are individually set, terminal equipments 3 for control and terminal equipment 4 for pattern setting are connected to a main controller 1 through the transmission line Ls. Data is transmitted between the main controller 1 and respective terminal equipments 2 and 3 by a time division multiplex transmission system. The corresponding relation of the terminal equipments 2 and the terminal equipments 3 is set by the addresses. When switches S connected to the terminal equipments 2 are operated, a load L connected to the terminal equipment 3 in the corresponding relation is on/off-controlled. The terminal equipments 4 hold the addresses of plural terminal equipments 3 and the control state of the loads L of respective terminal equipments 3, which are collectively operated, as pattern control data by the operation of the switches S. Pattern control data is set based on a wireless signal from a wireless transmitter-receiver 5.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention transmits data between a main control device and a plurality of terminal devices connected via a transmission line using a time division multiplex transmission method. The present invention relates to a remote monitoring and control system that controls a load connected to a control terminal in response to monitoring input to the control terminal.

0002

2. Description of the Related Art Conventionally, as shown in FIG. 6, this type of remote monitoring and control system connects a plurality of terminal devices 2 to 4, each having an address individually set, and a main control device 1 to a pair of terminal devices 2 to 4, each having an address set individually. There is one connected via a transmission line Ls consisting of a railway line. The terminals 2 to 4 include switches S1 to S4.
There are a terminal device 2 for monitoring which inputs the state of contacts such as the following as monitoring input, a terminal device 3 for control to which loads L1 to L4 are connected, a terminal device 4 for pattern setting which will be described later, and the like.

In this remote monitoring and control system, each of the terminals 2 to 4 is controlled by sending a transmission signal Vs having a format as shown in FIG. 7(a) from the main controller 1. There is. In other words, the transmission signal Vs is as shown in FIG.
As shown in a), a start pulse ST indicates the start of signal transmission, mode data MD indicates the mode of the signal, address data AD for calling the terminals 2 to 4, and loads L1 to L.
4, checksum data CS for detecting transmission errors, and signal return period WT for setting the return period from terminals 2 to 4. Data is transmitted by pulse width modulation (see FIG. 7(b)). In each terminal device 2 to 4, when the address data AD of the transmission signal Vs received via the transmission line Ls matches the preset address data, the transmission signal Vs
At the same time as taking in the control data CD of the transmission signal Vs, the monitoring data signal is converted into a current mode signal (a signal sent by short-circuiting the lines of the transmission line Ls via an appropriate low impedance) in synchronization with the signal return period WT of the transmission signal Vs. It is designed to be returned as a.

On the other hand, the main controller 1 is provided with dummy signal transmitting means and interrupt processing means. The dummy signal transmitting means always sends out a transmission signal Vs with the mode data MD in a dummy mode. Further, when an interrupt signal Vi as shown in FIG. , 4 is detected, the terminals 2 and 4 are accessed, and the monitoring data is sent back. For example, in the monitoring terminal device 2, when the switches S1 to S4 are operated, an interrupt signal Vi is generated. Further, in the main control device 1, the control terminal device 3 controls the loads L1 to L4 for which the correspondence relationship by address is set based on the monitoring data signals returned from the terminal devices 2 and 4 as described above. At the same time as creating a control data CD for the
By time-division multiplexing transmission of D to the control terminal 3 via the transmission line Ls, each of the loads L1 to L4 is individually controlled on and off.

That is, the monitoring terminal 2 sends out an interrupt signal Vi when the switches S1 to S4 are operated, and the main control device 1 that has received the interrupt signal Vi sends out a transmission signal Vs, and the signal return period is It receives data corresponding to ON or OFF as monitoring data. In the main control device 1, a terminal device 3 for control includes monitoring data from terminal devices 2 and 4 and loads L1 to L4 to be controlled.
A correspondence relationship is set, and the loads L1 to L4 of the control terminal device 3 are controlled to be turned on or off according to this correspondence relationship. Here, each terminal device 2, 4 rectifies and smoothes the transmission signal Vs, which is constantly transmitted to the transmission line Ls, and uses it as a power source. However, the loads L1 to L4 are powered by a separately provided power source.

The pattern setting terminal device 4 inputs pattern control data inputted from the data input section 6 to the main control device 1.
It is a terminal device that transfers data to That is, the main controller 1
An individual control mode in which each monitoring terminal device 2 and each control terminal device 3 correspond one-to-one, and one monitoring terminal device 2
It is possible to selectively send mode data for the batch control mode that corresponds to multiple control terminals 3, and in the pattern setting terminal 4, the batch control mode is compatible with multiple control terminals 3. The address and control state of the terminal device 3 for use are specified as pattern control data and are temporarily stored, and the stored pattern control data is transferred to the main control device 1.

[0007]

[Problems to be Solved by the Invention] By the way, in the remote monitoring and control system having the above configuration, the pattern setting terminal 4
Since the data input unit 6 is connected to the system, even if the same pattern control data is used in multiple systems, the pattern control data can only be set for each system, and the task of setting the pattern control data is simplified. The problem is that it becomes a hassle. In addition, the terminal device 4 for pattern setting can be detachably attached to the transmission line Ls, and the data input section 6
There is also a setting device that is detachable from the terminal device 4 for pattern setting and is independent from the system, but it is necessary to attach and detach the setting device to the system every time pattern control data is set. , there is a problem that the work is time-consuming.

The present invention aims to solve the above-mentioned problems, and allows setting of pattern control data to be performed in a plurality of systems at once. The aim is to provide a supervisory control system.

[0009]

[Means for Solving the Problems] The present invention connects a plurality of terminal devices each having an address individually set to a main control device via a transmission line, and sends a message from the main control device to each terminal device. Time-division multiplex transmission of transmission signals that include address data that specifies each terminal, transmission data to each terminal, and a signal return period that sets the period for receiving return data from the terminal to the main controller. However, the present invention is based on a remote monitoring and control system that controls a load connected to a control terminal in which a correspondence relationship based on addresses is set based on monitoring input to the monitoring terminal.

According to claim 1, the main control device has an individual mode in which a monitoring terminal device and a control terminal device correspond one-to-one, and a plurality of modes corresponding to monitoring inputs to the monitoring terminal device. Equipped with an operation mode that collectively controls loads connected to control terminals, and a transmission line with a pattern setting that specifies multiple control terminals controlled by batch control mode. A terminal device for pattern setting is connected to the terminal device for pattern setting;
It is equipped with a pattern storage section that stores the address of the terminal device specified by the wireless signal and the control state of the load as pattern control data of the terminal device to be collectively controlled.

In claim 2, the monitoring input to the monitoring terminal is a smoke detection signal output from a smoke sensor when the surrounding smoke concentration exceeds a predetermined value, and the monitoring terminal is provided externally. The wireless transmitter/receiver is equipped with a wireless transmitter/receiver that transmits and receives wireless signals to and from a wireless transmitter/receiver, and an address storage unit that stores the address specified by the wireless signal as its own address.

0012

According to the structure of claim 1, the terminal device for pattern setting includes a wireless transmitter/receiver section that transmits and receives wireless signals to and from an externally provided wireless transmitter/receiver, and a terminal device designated by the wireless signal. Since it is equipped with a pattern storage unit that stores addresses and load control states as pattern control data of terminals to be collectively controlled, the addresses of terminals to be collectively controlled can be set by external wireless signals. Therefore, there is no need to connect a setting device to the transmission line. As a result, if you want to set the same batch control pattern for multiple systems, you can set the multiple systems at once by transmitting a wireless signal to a terminal for multiple pattern settings. Therefore, the working time is significantly reduced. Further, since there is no need to attach or detach the setting device to the system, there is no need to attach or detach the setting device, and work efficiency is improved.

According to the configuration of claim 2, the monitoring input to the monitoring terminal is a smoke detection signal output from a smoke sensor when the surrounding smoke concentration exceeds a predetermined value, and the monitoring terminal is configured to: It is equipped with a wireless transmitter/receiver unit that transmits and receives wireless signals to and from an external wireless transmitter/receiver, and an address storage unit that stores the address specified by the wireless signal as its own address. Since the address can be set using an external wireless signal, when setting the address of a smoke detector placed at a high place, the address can be set using a dip switch etc. This eliminates the need to work at heights when setting addresses, making it easier to set addresses and preventing the dangers associated with working at heights.

[0014]

[Embodiment] (Embodiment 1) As shown in FIG. 1, the basic configuration of each remote monitoring and control system is the same as that shown in FIG. , a terminal device 3 for control, and a terminal device 4 for pattern setting are connected via a transmission line Ls. A switch S is connected to the monitoring terminal 2, and the operating state of the switch S is inputted as a monitoring input. Further, a load L such as a lighting fixture is connected to the control terminal 3. A correspondence relationship is set between the monitoring terminal device 2 and the control terminal device 3 by addresses, and when the switch S is operated, the load L to which the correspondence relationship is set is turned on and off.

By the way, the terminal device 4 for pattern setting is
As shown in FIG. 2, a signal processing unit 41 that processes the transmission signal transmitted via the transmission line Ls, a power supply circuit 42 that rectifies and stabilizes the transmission signal and uses it as a power source for the terminal 4, and a It includes an address setting section 43 for setting addresses, a wireless transmitting/receiving section 44 for transmitting and receiving wireless signals, and a pattern storage section 45 for storing addresses and load control states transmitted by wireless signals as pattern control data. The pattern storage section 45 is configured using an EEPROM or the like, and the address setting section 43 is configured using this EEPROM.
It is configured using a part of the PROM area. In other words, the configuration is such that the address can also be set using a wireless signal from the outside.

On the other hand, the wireless transmitter/receiver 5 that transmits and receives wireless signals to and from the pattern setting terminal 4 includes a wireless transmitter/receiver 51 that transmits and receives wireless signals, and a wireless transmitter and receiver that generates wireless signals, as shown in FIG. It includes a processing section 52, an operation section 53 consisting of a large number of switches, and a display section 54 consisting of a liquid crystal display. However, when the operating section 53 is operated, the data created by the wireless processing section 52 is sent out from the wireless transmitting/receiving section 51 as a wireless signal. Furthermore, when the wireless transmitter/receiver 51 receives a wireless signal from the outside,
The wireless processing section 52 decodes the data included in the wireless signal and displays the contents on the display section 54.

The wireless transceiver 5 has two operating modes: a setting mode and a confirmation mode. In the setting mode, the addresses of the control terminals 3 to be collectively controlled are specified, and the control state of the load L connected to each terminal 3 is specified. The address of the designated terminal device 3 and the control state of the load L are displayed on the display section 54 and sent out as a wireless signal through the wireless transmitter/receiver section 51. On the other hand, the pattern setting terminal device 4 that has received this wireless signal stores the address of the terminal device 3 and the control state of the load L in the pattern storage section 45 as pattern control data. In this way, the pattern storage section 45
The pattern control data stored in is transferred to the main control device 1. Thereafter, by operating the switch S designated to collectively control a plurality of loads L, the loads L designated by the pattern control data will be collectively controlled.

When the confirmation mode is specified, the operation section 5
By operating 3, a wireless signal in confirmation mode is sent out. The pattern setting terminal device 4 that has received this wireless signal reads out the pattern control data stored in the pattern storage section 45 and sends it back as a wireless signal from the wireless transmission/reception section 44. In this way, the wireless transceiver 5 displays pattern control data on the display section 54 based on the wireless signal returned from the terminal 4.

When it is desired to change the pattern control data stored in the pattern storage section 45, the pattern control data already stored can be checked in the confirmation mode and then set in the setting mode. According to the above configuration, pattern control data can be set, confirmed, and changed without attaching or detaching a setting device to the system side. In addition, when it is desired to use the same batch control pattern for multiple systems, as shown in FIG. All you have to do is transmit it to multiple systems all at once. In addition, when transmitting pattern control data only to a specific system, the terminal device 4 of the target system
The wireless transmitter/receiver 5 can be operated by bringing it close to the user. The terminal device 4 for pattern setting is provided with a setting prohibition switch that prohibits the setting and changing of pattern control data using wireless signals, and when the setting and changing prohibited state is selected by the setting prohibiting switch, wireless signals are The pattern control data may not be set or changed even if the pattern control data is received.

(Embodiment 2) In this embodiment, as shown in FIG. 4, a remote monitoring and control system is used in a disaster prevention system, and as shown in FIG. The monitoring input is a detection signal output from the smoke sensor 21 when the surrounding smoke concentration exceeds a predetermined value. That is, the smoke sensor 21 and the monitoring terminal 2 are housed in one case to form a smoke detector. The detection signal may be a binary signal of on or off, or may be an analog signal corresponding to smoke density. Furthermore, interlocking processing devices such as a buzzer B, a sprinkler, and a fire shutter are connected to the control terminal 3 as loads. Some control terminals 3 have display elements connected to them as loads, and these terminals 3 are arranged in one place with positions determined in accordance with addresses, so that the display unit 7 can be controlled. Configure.

Here, the monitoring terminal 2 is as shown in FIG.
As shown in the figure, a signal processing unit 22 that sends and receives transmission signals transmitted via the transmission line Ls, a power supply circuit 23 that rectifies and stabilizes the transmission signals and uses them as a power source for the terminal device 2, and a self-address of the terminal device 3. It includes an address storage section 24 for holding addresses, and a wireless transmitting/receiving section 25 for transmitting and receiving wireless signals. The address storage section 24 is composed of an EEPROM or the like, and the address data stored in the address storage section 24 is used as the own address of the terminal device 3. That is, if the address data of the transmission signal matches the address data stored in the address storage section 24,
The signal processing unit 22 performs processing based on each data included in the transmission signal, creates return data, and sends it back to the main control device 1 during the signal return period.

By the way, the address data stored in the address storage section 24 can be set using a wireless signal received by the wireless transmitting/receiving section 25. That is, the wireless signal is transmitted by the wireless transceiver 5 having the same configuration as in the first embodiment, and address data is set or confirmed. Therefore, by assigning a unique address corresponding to the smoke sensor 21 and performing time-division multiplex transmission, the location of the smoke sensor 21 that has generated the detection signal can be recognized even though the number of lines is small (two lines are enough). It is possible. In addition, when setting the address corresponding to the smoke sensor 21 located at a high place, compared to setting the address using a dip switch etc., there is no need to work at a high place, making the work easier. The work can be done safely.

[0023]

As described above, according to the configuration of claim 1, the pattern setting terminal device includes a wireless transmitting/receiving section that transmits and receives wireless signals to and from an externally provided wireless transmitter/receiver, and Since it is equipped with a pattern storage unit that stores the address of the terminal device specified by and the control state of the load as the pattern control data of the terminal device to be collectively controlled, the address of the terminal device to be collectively controlled is Settings can be made using signals, and there is no need to connect a setting device to the transmission line. As a result, if you want to set the same batch control pattern for multiple systems, you can set the multiple systems at once by transmitting a wireless signal to a terminal for multiple pattern settings. As a result, work time is significantly reduced. Further, since it is not necessary to attach or detach the setting device to the system, there is an advantage that the operation of attaching or detaching the setting device is unnecessary, and the work efficiency is improved.

According to the configuration of claim 2, the monitoring input to the monitoring terminal device is a smoke detection signal output from the smoke sensor when the surrounding smoke concentration exceeds a predetermined value, and the monitoring terminal device is configured to: It is equipped with a wireless transmitter/receiver unit that transmits and receives wireless signals to and from an external wireless transmitter/receiver, and an address storage unit that stores the address specified by the wireless signal as its own address. Since the address can be set using an external wireless signal, when setting the address of a smoke detector placed at a high place, the address can be set using a dip switch etc. This eliminates the need to work at heights when setting addresses, making it easier to set addresses and preventing the dangers associated with working at heights.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing a first embodiment.

FIG. 2 is a block diagram showing a terminal device for pattern setting used in the first embodiment.

FIG. 3 is a block diagram showing a wireless transceiver used in the first embodiment.

FIG. 4 is a schematic configuration diagram showing a second embodiment.

FIG. 5 is a block diagram showing a monitoring terminal according to a second embodiment.

FIG. 6 is a schematic configuration diagram of a remote monitoring and control system according to the present invention.

FIG. 7 is an explanatory diagram of the operation of the remote monitoring and control system according to the present invention.

[Explanation of symbols]

1 Main control device 2 Terminal device for monitoring 3. Terminal for control 4 Terminal device for pattern setting 5 Wireless transmitter/receiver 21 Smoke sensor 24 Address storage section 25 Wireless transmitter/receiver 44 Wireless transmitter/receiver 45 Address setting section

Claims (2)

[Claims] [Claim 1] A plurality of terminal devices each having an address set individually are connected to a main control device via a transmission line,
A signal return is sent from the main control device to each terminal device to set the period for receiving address data specifying each terminal device, transmission data to each terminal device, and return data from the terminal device to the main control device. Remote monitoring control that time-division multiplex transmits transmission signals including periods and controls loads connected to control terminals in which correspondence by addresses is set based on monitoring input to the monitoring terminals. In the system, the main controller has an individual mode in which a monitoring terminal device and a control terminal device correspond one-to-one, and a plurality of control terminal devices in response to monitoring input to the monitoring terminal device. The transmission line has two operation modes: a batch control mode that collectively controls the loads connected to the transmission line, and a pattern setting terminal that specifies multiple control terminals that are controlled by the batch control mode. The connected terminal device for pattern setting has a wireless transmitter/receiver unit that transmits and receives wireless signals to and from an external wireless transmitter/receiver, and collectively controls the address and load control status of the terminal device specified by the wireless signal. 1. A remote monitoring and control system comprising: a pattern storage section for storing pattern control data of terminals to be used. [Claim 2] A plurality of terminal devices each having an address set individually are connected to a main control device via a transmission line,
A signal return is sent from the main control device to each terminal device to set the period for receiving address data specifying each terminal device, transmission data to each terminal device, and return data from the terminal device to the main control device. Remote monitoring control that time-division multiplex transmits transmission signals including periods and controls loads connected to control terminals in which correspondence by addresses is set based on monitoring input to the monitoring terminals. In the system, the monitoring input to the monitoring terminal is a smoke detection signal output from a smoke sensor when the surrounding smoke concentration exceeds a predetermined value, and the monitoring terminal is connected to an external wireless transmitter/receiver. 1. A remote monitoring and control system comprising: a wireless transmitter/receiver that transmits and receives wireless signals between devices; and an address storage that stores an address designated by the wireless signal as its own address.