JPH04132495A - Remote supervisory control system - Google Patents

Abstract

PURPOSE:To simplify the setting of a pattern control data by allowing a central control unit storing the relation between a pattern control data and an address in advance to apply simultaneous control to each supervised equipment according to the pattern control data relating to an address sent from a supervised terminal equipment. CONSTITUTION:An estimated pattern control data is stored for each address to a pattern storage section 18 of a central control unit 17 in advance and a relevant pattern name is set to each pattern control data. When a pattern setting device 10 is used to enter a pattern name to each supervised terminal equipment 14, the name is converted into an address corresponding to the pattern based on a conversion table 12 and stored in an address storage section 16 of the supervised terminal equipment 14. When a pattern switch S1 is depressed, an address data is sent to the central controller 17, the central control unit 17 applies simultaneous control to each supervised equipment according to a relating pattern control data to a transmission address based on the relation between the stored address and the pattern control data. Thus, the setting of the pattern control data is simplified.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a remote monitoring and control system that transmits data between a central control unit and a plurality of terminal devices connected via signal lines. .

[Conventional technology]

As shown in FIG. 5, this type of remote monitoring park opening device includes a central control device 31, a plurality of monitoring terminals 32 to which unique addresses are set, a control terminal 33, a wireless relay terminal 34, An external interface terminal 35 and a pattern setting terminal 36 are connected via a pair of signal lines 37. A switch 5l-34 such as a wall switch is connected to the monitoring terminal 32 as a monitoring input.

As shown in FIG. 6(a), the transmission signal V transmitted from the central control device 31 to the signal line 37 includes a start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and each terminal. An 8-bit address data signal AD that calls the terminals 32 to 36, a control data signal CD that transmits control data to control the loads L1 to L4, a checksum data signal C8, and a return period from each terminal 32 to 36 are set. A bipolar (±24V) consisting of a return standby signal WT
) is a time-division multiplexed signal in which data is transmitted using pulse width modulation. Each terminal 32-36
Then, when the address data of the transmission signal V received via the signal line 37 matches the set address data, the ffiHm data of the transmission signal V8 is taken in, and it is synchronized with the return standby signal WT of 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 37 via an appropriate low impedance). In addition, the central control device 3
1 includes a dummy signal transmitting means that always sends out a dummy transmission signal with the mode data signal MD in a dummy mode, a monitoring terminal 32, a wireless relay terminal 34, an external interface terminal 35, and a pattern setting terminal. When an interrupt signal vl as shown in FIG. 6(b) returned from one of the terminals 36 to 36 is received, the terminal device 32 to 36 that generated the interrupt is detected and the terminal device 32 to 36 is accessed. An interrupt processing means for returning monitoring data is provided. In addition, the central control device 31 receives the monitoring data returned to the central control device 31 from the monitoring terminal 32 or the wireless relay terminal 34, the external interface terminal 35, and the pattern setting terminal 36 as described above. Based on this, control data is created to be transmitted to the control terminal device 33 that controls the corresponding loads L1 to L4, and the control data is time-division multiplexed and transmitted to the control terminal device 33 via the signal line 37. It is designed to control loads Ll-L4. Further, when the states of the loads L1 to L4 of the control terminal device 33 change, the control terminal device 33 returns monitoring data of the states of the loads L1 to L4 to the central control device 31 via the signal line 37, and Based on the monitoring data, the device 31 time-division multiplex transmits control data to the corresponding monitoring terminal 32 via the signal line 37 so as to change the LED display of the wall switches 81 to s4 of the monitoring terminal 32. It has become.

The wireless relay terminal 34 includes an optical wireless oscillator Y,
It is a terminal device that relays data in an optical wireless system consisting of an optical wireless receiver Data is received via the wireless signal line 38, and this data is transferred to the central control unit ft31.

Further, 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 transmits pattern control data input from the data input section 40 to the central control device 31. It is a terminal device that transfers data to In addition, the distribution board 41 or the relay control board 41
The control terminal 33 disposed inside a is set to the dimensions agreed upon by the distribution board, and its control output is used to control the load by controlling a remote control relay (a latching relay that can be turned on and off by a hand switch). 42 is controlled.

Here, when controlling the loads all at once, as shown in FIG. 7, when the wall switch Sl of the monitoring terminal 32 is operated, the address data stored in the address storage section 52 composed of dip switches etc. is transmitted to the central control device 3I via the signal line 37, and the central control device 31 transmits the control data to the control terminal via the signal line 37 in accordance with the pattern control data corresponding to the address data stored in the pattern storage section 5o. transmitter 33.

The pattern control data is pattern control data indicating the correspondence between the pattern for controlling the load as shown in FIG. The pattern control data is stored in the pattern storage section 51 of the pattern setting terminal 36, the pattern control data is transmitted to the central control device 31 via the signal line 37, and the pattern storage section 50 of the central control device 31 It is stored in the memory.

[Invention or problem to be solved]

In the conventional example described above, the pattern control data written in the pattern storage section 50 of the central control device 31 for collectively controlling the loads can be rewritten using the pattern setting terminal 36. There is. Therefore, it is necessary for the pattern storage section 50 to be constructed of a memory that is rewritable and capable of retaining the stored contents even if the power supply is cut off. Since this memory is relatively expensive, there is a problem in that the price of the central control unit 31 becomes high. Furthermore, when setting pattern control data using the pattern setting terminal 36, the user must input the pattern control data each time, and the operation procedure may be complicated and the setting operation may take a long time. As a result, setting errors in pattern control data often occurred.

The present invention has been made in view of the above points, and its purpose is to provide a remote monitoring and control system that is simple and inexpensive to set pattern control data for collectively controlling loads. There is a particular thing.

[Means to solve the problem]

The present invention connects a plurality of terminal devices each having an address uniquely set to a central control device via a pair of signal lines, and communicates between the central control device and each terminal device by transmission signals sent from the central control device. Data is time-division multiplexed between
A remote monitoring and control system in which the transmission signal includes address data for accessing each terminal, control data for controlling the load connected to the terminal, and a return standby signal for setting the data return period from the terminal. In the above-mentioned central control device, the central control device includes a pattern storage section that stores in advance a plurality of pattern control data for each address for collective control of the terminal devices, and among the terminal devices, the monitoring terminal device It is equipped with an address storage section for storing the address data for the first period, and a signal reception section for receiving the signal including the address data to be written in the address storage section. The present invention is characterized by comprising a pattern setting device including an input section, a conversion table for converting a pattern name into address data, and a signal transmitting section for transmitting address data to the monitoring terminal.

[Effect]

The remote monitoring control system of the present invention stores in advance a plurality of assumed pattern control data for each address in the pattern storage section of the central control device, sets a corresponding pattern name to each pattern control data, When setting a pattern to each monitoring terminal, by inputting the pattern name corresponding to the pattern in the pattern setting device, it is converted to an address corresponding to the pattern in the conversion table, and the address storage of the monitoring terminal is The address corresponding to the pattern is stored. When the pattern switch of the monitoring terminal is pressed, address data is transmitted to the central control unit, and the central control unit determines the pattern control data corresponding to the address based on the relationship between the address and pattern control data stored in the pattern storage unit. Perform batch control according to the following.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram showing an embodiment of the present invention, in which the central control device 17 and the monitoring terminal 14 are connected to a pair of signal lines 37.
connected via.

Reference numeral 10 denotes a pattern setting device, which includes an input section 11, a conversion table 12, and a signal transmission section 13, and is provided separately from the terminal device. The input unit 11 is for inputting the pattern name of the pattern control data that you want to set.You can input the pattern name directly from the keyboard, or select from the pattern names displayed in a menu using a touch panel with a display, etc. It may be possible to do so. Conversion table 1
As shown in FIG. 2, reference numeral 2 is a conversion table showing the correspondence between addresses and pattern names for converting the pattern names input from the human power section 11 into address data.

The signal transmitter 13 transmits the address data converted by the conversion table 12 to the monitoring terminal 14.

The monitoring terminal 14 includes a signal receiving section 15, an address storage section 16, and a pattern switch St.

The signal receiving section 15 is for receiving the signal transmitted from the pattern setting device 10, and the address storage section 16 is for storing the address data transmitted from the pattern setting device IO and received by the signal receiving section 15. This is for storage, and a non-volatile memory is used so that the address data can be retained even if the power supply to the monitoring terminal 14 is cut off. The pattern switch S1 is attached to a wall or the like. When the switch Sl is pressed, the address data stored in the address storage section I6 is output.

The central control device 17 is also provided with a pattern storage section 18 . The pattern storage unit 18 stores a plurality of pattern control data assumed in advance for each address, and there is no need to rewrite the stored contents, so there is no need to use a rewritable nonvolatile memory.

Next, the operation when setting a pattern according to this embodiment will be explained. First, for example, pattern control data indicating the correspondence between the control states of the loads L1 to L5 and addresses 1 to 6 shown in FIG. 3 is stored in the pattern storage unit 18 of the central control device 17 in advance. Next, when setting a control pattern indicating the control state of the load in each of the monitoring terminal devices 14, such as a construction company, etc., each load Ll-L5 as shown in FIG.
A pattern list is prepared in which the correspondence between the control status and addresses 1 to 6 is further matched with patterning, and the construction contractor, etc., while looking at the list, creates a pattern such as "Good night". , and press the "Good night" switch from the input section 11 of the pattern setting device 10. In the conversion table 12, address 1 (address data) corresponding to the patterned "Good night" is selected according to the conversion table shown in FIG. is searched and output. This address data is sent from the signal transmitter 13 to the monitoring terminal 14. In the monitoring terminal 14, the address data received by the signal receiver 15 is input to the address storage section 16, and the address data "Address 1" is stored. In this way, the address l corresponding to the pattern "Good night J" is stored in the address storage section 16 of the monitoring terminal 14.

The above operations are performed on a plurality of monitoring terminals 14, and the pattern setting device 10 sets address data for each monitoring terminal 14.

Here, when the pattern switch S1 of the monitoring terminal 14 is pressed, address data indicating the address l is sent from the monitoring terminal 14 to the central control unit 17 via the signal line 37. In the central control device 17, the pattern storage section 18
Based on the pattern control data stored in advance in , the control data corresponding to the address 1 is sent to each control terminal device via the signal line 37 to control each load. In other words, from the central control device I7, the load Ll is ON, and the loads L2 to L5 are
Control data indicating OFF is sent to each control terminal.

〔Effect of the invention〕

As described above, according to the remote monitoring and control system of the present invention, a plurality of assumed pattern control data are stored in advance for each address in the pattern storage section of the central control device,
For each pattern control data, set a corresponding pattern, and when setting a pattern for each monitoring terminal, input the pattern corresponding to the pattern in the pattern setting device, and correspond to the pattern in the conversion table. The address corresponding to the pattern is stored in the address storage section of the monitoring terminal. When the pattern switch of the monitoring terminal is pressed, address data is transmitted to the central control unit, and the central control unit determines the pattern control data corresponding to the address based on the relationship between the address and pattern control data stored in the pattern storage unit. By performing batch control according to the above, we were able to provide a simple and inexpensive remote monitoring and control system for setting pattern control data for batch control of loads.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of a conversion table according to the above, FIG. 3 is an explanatory diagram of a pattern storage unit according to the above, and FIG. An explanatory diagram of a pattern list according to the above, FIG. 5 is a schematic configuration diagram of a remote monitoring and control device, FIG. 6 is an explanatory diagram of a transmission signal according to the above, and FIG. 7 is a block diagram showing a conventional example. , 0-Pattern setting device 11-Manpower section 2-Conversion table 13-Signal transmitting section 4-Monitoring terminal device 150. Signal receiving section 6-address storage section 17.
・Central control unit 8 - Pattern setter 37 - Signal line SL - Pattern switch Patent applicant Matsushita Electric Works Co., Ltd. Agent Patent attorney Shigeji Sahara (and 1 other person) Figure 2 Front table Figure 3 Figure 1) Raku ′

Claims (1)

[Claims] (1) Multiple terminal devices, each with a unique address, are connected to the central control device via a pair of signal lines, and transmission signals sent from the central control device are used to connect the central control device and each terminal device. Data is time-division multiplexed and transmitted, and the transmission signals include address data for accessing each terminal, control data for controlling the load connected to the terminal, and a return standby signal for setting the data return period from the terminal. In the remote monitoring and control system, the central control device includes a pattern storage section that stores in advance a plurality of pattern control data for batch control of the terminal devices for each address, and , the monitoring terminal device is equipped with an address storage section that stores address data for transmission and a signal reception section that receives a signal containing the address data written in the address storage section, and further includes Equipped with a pattern setting device having an input section for inputting a desired pattern name, a conversion table for converting the pattern name into address data, and a signal transmission section for transmitting address data to the early monitoring terminal device. A remote monitoring and control system featuring: