JPH08331668A - Monitoring and controlling method and system therefor - Google Patents

Abstract

PURPOSE: To suppress the increase of communication traffic to a low degree for a managing device by a controller because the controller receives set data and stores the data, and the state data of this terminal equipment is transmitted to the managing device if the terminal equipment satisfying a condition exists by referring to the set data. CONSTITUTION: When 60 minutes passes after the operation of a monitoring and controlling system is started, a decision part 7 judges that period time becomes 30 minutes for address numbers 1 to 200, the state data of the address numbers 1 to 500 is successively read from a buffer 2b and the data is outputted to a transmission/reception part 2a. The transmission/reception part 2a successively transmits these 500 state data to a transmission/reception part 3a via a signal line L2. This transmission/ reception part 3a successively receives state data and outputs this state data to a main control part 3b. This main control part 3b outputs this state data to a display part 3c. Therefore, the number of times of the signal passing the signal line L2 is 500 times to be transmitted from a controller 2 to a managing device 3. Although the transmission of set data of 500 times is performed when a setting is performed, the influence of load is little as compared with the transmissions of 5 hundred thousand times for 30 days.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a supervisory control system.

[0002]

2. Description of the Related Art A conventional supervisory control system will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of the supervisory control system.

The supervisory control system shown in FIG.
And a control device 2 and a management device 3.

The terminal 1 is provided at various places in the building and is connected to a state detection sensor 4 corresponding to a connected device. The terminal device 1 detects the state of the state detection sensor 4 to detect the on / off state (hereinafter, the detected data will be referred to as state data). Further, each terminal device 1 has a unique address number.

The control device 2 is provided for each floor or several floors in the building, and sequentially collects the status data of the plurality of terminal devices 1 and, apart from the collecting operation, requests from the management device 3. According to the above, the collected state data is transmitted to the management device 3. The control device 2 includes a transmission / reception unit 2a, a buffer 2b, and a data collection unit 2c.

The data collection unit 2c sequentially collects the state data detected by each terminal device 1 for each terminal device 1 and outputs the data to the buffer 2
It is output to b.

The buffer 2b stores the state data of each terminal device 1 output from the data collecting section 2c in association with the address number of the terminal device 1.

When the transmission / reception unit 2a receives a data request signal from the transmission / reception unit 3a of the management device 3 described later, the transmission / reception unit 2a transmits the state data of the terminal 1 stored in the buffer 2b to the transmission / reception unit 3a.

The management device 3 includes one or a plurality of control devices 2.
It is installed mainly in a central control room of a building and the like, and displays state data in a visually easy-to-understand manner. The management device 3 includes a transmitting / receiving unit 3a,
The main control section 3b and the display section 3c are provided.

The transmitter / receiver 3a receives the data request signal output from the main controller 3b, and the transmitter / receiver 2 of the control device 2 receives the data request signal.
The status data transmitted to the main control section 3a is output to the main control section 3b.

The main controller 3b outputs a data request signal to the transmitter / receiver 3a in order to instruct the controller 2 to transmit the status data displayed on the display 3c. There are two types of data request signals, an individual data request signal with an address number to request the return of status data of one terminal 1, and status data of all terminals 1 connected to the control device 2. There is a whole data request signal for requesting a reply of.
Then, the main control unit 3b receives the status data returned from the terminal device 1 from the transmission / reception unit 3a and outputs it to the display unit 3c.

When the display section 3c receives the status data,
The state data is displayed in a visually easy-to-understand manner.

Next, the connection relationship will be described. The state detection sensor 4 is connected to the terminal device 1 in a one-to-one relationship, and the plurality of terminal devices 1 are connected to the data collection unit 2c of the control device 2 via the signal line L1. The data collection unit 2c is connected to the buffer 2b, and the buffer 2b is connected to the transmission / reception unit 2a. The transmission / reception unit 2a is connected to the transmission / reception unit 3a of the management device 3 via the signal line L2, and the transmission / reception unit 3a is connected to the main control unit 3b. And the main controller 3b
Is connected to the display unit 3c.

The operation of collecting and displaying the status data of the supervisory control system configured as described above will be described. The state detection sensor 4 and the terminal 4 are each
It is assumed that 100 units are provided, and the management device 3 updates the display every 30 minutes for 200 units having the address numbers 1 to 200 out of the 500 units 1 and the address numbers 2
For 300 units of 01 to 500, the display is updated every 60 minutes. Therefore, the management device 3 needs the status data of 200 terminals 1 every 30 minutes and the status data of all the terminals 1 every 60 minutes.

First, when the operation of the supervisory control system is started, the data collecting unit 2c of the control device 2 sequentially collects the state data from the terminal 1 having the address number 1 and writes it in the buffer 2b. Then, the data collection unit 2c displays 500
When the collection of the status data of the terminal devices 1 of the units is completed, the terminal devices with the address number 1 are sequentially collected again. The collecting operation is independently repeated regardless of the operation of the management device 3.

Next, 3 from the start of the operation of the supervisory control system
After 0 minutes, the terminal device 1 with the address number 1 to 200
In order to display the state data of the display on the display unit 3c, the main control unit 3b
First, however, it outputs the individual data request signal with the address number 1 to the transmitting / receiving section 3a. The transmitter / receiver 3a uses the signal line L2.
The individual data request signal is transmitted to the transmission / reception unit 2a via. The transmitter / receiver 2a reads the status data of the address number indicated in the received individual data request signal from the buffer 2b and sends it back to the transmitter / receiver 3a. That is, the transmitter / receiver 2a
Returns the status data of address number 1 to the transmitting / receiving unit 3a. When the transmission / reception unit 3a receives the state data of address number 1, it outputs the state data to the main control unit 3b, and the main control unit 3b outputs the state data to the display unit 3c. The main controller 3b then uses the remaining address numbers 2 to 200.
With respect to the status data of, the status data is individually requested by the same operation. Therefore, the number of signals passing through the signal line L2 is 200 for the individual data request signal transmitted from the management device 3 to the control device 2 and 200 for the status data returned from the control device 2 to the management device 3. It is 400 times in total.

Next, from the start of operation of the supervisory control system, 6
After 0 minutes, the terminal device 1 with the address number 1 to 200
In order to display the status data of the terminal 1 having the address numbers 201 to 500 on the display unit 3c, the main control unit 3b outputs a whole data request signal to the transmission / reception unit 3a (the individual data request signal may be used, Considering the number of signal transmissions and receptions,
When obtaining the status data of all the terminals 1, the number of signal transmissions and receptions can be reduced by using the whole data request signal). The transmitter / receiver 3a transmits the whole data request signal to the transmitter / receiver 2a via the signal line L2. Transmitter / receiver 2a
Receives the whole data request signal, the address number 1
All the status data from 1 to 500 are sequentially buffered 2b
Read out from the device and sequentially send back to the transmitter / receiver 3a for each state data. The transmitting / receiving unit 3a sequentially receives the state data having the address number 1 to the state data having the address number 500, and sequentially outputs the state data to the main control unit 3b.
The main controller 3b outputs the status data to the display 3c.
Therefore, the number of signals passing through the signal line L2 is 1 when the total data request signal transmitted from the management device 3 to the control device 2 is 1.
And the status data returned from the control device 2 to the management device 3 is 500 times, which is 501 times in total.

By the above operation, the number of signals passing through the signal line L2 is about 900 times per hour. Then, once the supervisory control system starts operating, if it operates continuously for 24 hours a day and continues without stopping for 30 days, about 640,000 times of data will be transmitted and received within 30 days. Become.

[0019]

However, in the supervisory control system as shown in FIG. 3 described above, when the management device 3 obtains the status data by the individual data request signal, the status data is sent via the signal line L2. The individual data request signal and the status data are transmitted and received. Therefore, if the management device 3 passes the signal line L2 twice in order to obtain one status data and the management device 3 obtains a large number of status data by the individual data request signal, the communication amount increases greatly. Then, there is a problem that a load is applied to the transmission / reception processing of the supervisory control system, and the processing capacity of the supervisory control system as a whole is lowered.

Further, in the case of the whole data request signal described in the above-mentioned conventional technique, when all the status data of the terminal 1 is required, the efficiency is less wasteful than in the case of the individual data request signal. Target. However, for example, 5
In the case where only the status data of 200 terminals 1 out of 00 terminals 1 is needed, the status data for the remaining 300 terminals is not required, although 5
00 pieces of status data are transmitted from the control device 2 to the management device 3. Therefore, when the unnecessary state data for 300 units passes through the signal line L2, the amount of communication is greatly increased, which imposes a load on the transmission / reception processing of the supervisory control system and reduces the processing capacity of the overall supervisory control system. There was a problem.

The present invention has been made to solve the above problems, and an object thereof is to increase the amount of communication when the control device transmits the status data of the terminal to the management device. It is an object of the present invention to provide a supervisory control method and a system thereof that can suppress the load and reduce the load of transmission / reception processing of the supervisory control system.

[0022]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides an invention as set forth in claim 1, in which a terminal device detects status data of a connected device, and a control device controls the terminal device. In the supervisory control method in which the management device sequentially collects and stores the status data, and the management device receives the status data from the control device when necessary, the management device sets the condition when the status data is required for each terminal device. The set data is transmitted to the control device, the control device receives and stores the set data, refers to the set data, and if there is a terminal satisfying the condition, the state data of the terminal is sent to the management device. It is a method characterized by transmitting to.

According to the second aspect of the present invention, a terminal device for detecting the status data of the connected device, a control device for sequentially collecting and storing the status data of the terminal device, and, if necessary, the control device In a supervisory control system having a management device for receiving status data, the management device has a setting condition transmission section for transmitting to the control device setting data in which conditions for setting the status data are set for each terminal device. The control device refers to the setting storage unit that receives and stores the setting data, and the determination unit that refers to the setting data and transmits the status data of the terminal device to the management device if there is a terminal device that satisfies the condition. It is characterized by having.

[0024]

With the above-mentioned configuration, in the invention according to claim 1, the management device sets the condition when the status data is required at the time of starting or resetting the monitoring control system. To the control device, the control device receives and stores the setting data, refers to the setting data, and if there is a terminal device that satisfies the condition, The status data of 1 is transmitted to the management device. Therefore,
In order for the management device to obtain one status data, the signal need only be transmitted once without passing through the signal line, and the management device can obtain the status data without transmitting / receiving unnecessary signals. it can.

According to the second aspect of the invention, the setting condition transmitting section is provided when the supervisory control system is started or reset.
The setting data, which sets the condition when the state data is required for each terminal, is transmitted to the control device, the setting storage unit receives and stores the setting data, and the determination unit refers to the setting data, If there is a terminal that satisfies the conditions, the status data of the terminal is transmitted to the management device. Therefore, in order for the management device to obtain one status data, the signal does not have to pass through the signal line twice, and only once, and the management device does not send or receive unnecessary signals, and the management device can send the status data. Obtainable.

[0026]

Embodiments of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing the configuration of a supervisory control system. FIG. 2 is a conceptual diagram illustrating the format of setting data stored in the setting storage unit.

In FIG. 1, the same parts as those of the supervisory control system described in the above-mentioned conventional technique are designated by the same reference numerals, and detailed description of the same parts will be omitted.

The monitoring control system of this embodiment shown in FIG. 1 is different from the monitoring control system described in the above-mentioned prior art in that it has the following features.

That is, firstly, the setting condition transmission section 5 is provided in the management device 3. The setting condition transmission unit 5 outputs predetermined setting data to the transmission / reception unit 3a when the monitoring control system is activated or when the settings are changed.

The setting data indicates how often the status data is required for each terminal 1, and specifically, the address number and the cycle time are associated with each other. . Then, the setting data is used for all terminals 1.
Is provided for.

Second, in the control device 2, the setting storage unit 6
That is, the determination unit 7 and the timer 8 are provided.

The setting storage unit 6 is composed of a memory, and the setting data received by the transmission / reception unit 2a from the transmission / reception unit 3a corresponds to the address number of each terminal device 1 and the cycle time as shown in FIG. Let me remember.

The timer 8 measures time.
The determination unit 7 compares the time measured by the timer 8 with the setting data stored in the setting storage unit 6 and determines whether or not there is an address number having the set cycle time.
Then, if there is an address number that has reached the set cycle time, the status data of the address number is read from the buffer 2b and output to the transmitting / receiving unit 2a.

Next, the connection relation of each part having the above-mentioned structure will be described. The state detection sensor 4 is connected to the terminal device 1 in a one-to-one relationship, and the plurality of terminal devices 1 are connected to the data collection unit 2c of the control device 2 via the signal line L1. The data collection unit 2c is connected to the buffer 2b, and the buffer 2b is connected to the determination unit 7. The determination unit 7 is connected to the timer 8, the setting storage unit 6, and the transmission / reception unit 2a. The setting storage unit 6 is connected to the transmitting / receiving unit 2a. Transmitter / receiver 2a
Is connected to the transmission / reception unit 3a of the management device 3 via the signal line L2, and the transmission / reception unit 3a is connected to the main control unit 3b and the setting condition transmission unit 5. And the main controller 3b
Is connected to the display unit 3c.

The operation of collecting and displaying the status data of the supervisory control system configured as described above will be described. The state detection sensor 4 and the terminal 4 are each
It is assumed that 100 units are provided, and the setting condition transmission unit 5 is
For 200 units with address numbers 1 to 200, 30 minutes is set as the cycle time, and 30 units with address numbers 201 to 500
For 0 cars, the cycle time is 60 minutes.

First, when the supervisory control system is activated,
The setting condition transmitting unit 5 outputs the setting data of 500 terminals 1 to the transmitting / receiving unit 3a. The transmitter / receiver 3a uses the signal line L
The setting data is sequentially transmitted to the transmission / reception unit 2a via 2 for each address number. When the transmitting / receiving unit 2a receives the setting data, the transmitting / receiving unit 2a sequentially outputs the setting data to the setting storage unit 6,
The setting storage unit 6 stores setting data.

When the operation of the supervisory control system is started, the data collection unit 2c of the control device 2 sequentially collects the state data from the terminal 1 having the address number 1 and writes it in the buffer 2b. Then, the data collection unit 2c displays 500
When the collection of the state data of the terminal devices 1 of the units is completed, the terminal devices with the address number 1 are sequentially collected again, and the process is repeated thereafter.

The judgment unit 7 compares the time measured by the timer 8 with the setting data stored in the setting storage unit 6,
It is determined whether or not there is an address number that has reached the set cycle time. Then, if there is an address number that has reached the set cycle time, the determination unit 7 reads the status data of the address number from the buffer 2b and outputs it to the transmission / reception unit 2a, and if not, repeats the determination operation. The determining operation is performed independently of the collecting operation of the data collecting unit 2c.

Next, 3 from the start of the operation of the supervisory control system
When 0 minutes have passed, the determination unit 7 determines that the address numbers 1 to 200
Is determined to have reached the set cycle time (30 minutes), and the state data of address numbers 1 to 200 are sequentially buffered by the buffer 2b.
The data is sequentially read out from and output to the transmission / reception unit 2a. Then, the transmitting / receiving unit 2a receives the transmitting / receiving unit 3 via the signal line L2.
The 200 pieces of status data are sequentially transmitted to a. The transmission / reception unit 3a sequentially receives the status data and sequentially outputs the status data to the main control unit 3b, and the main control unit 3b outputs the status data to the display unit 3c. Therefore, the number of times the signal passes through the signal line L2 is 200 times of the status data transmitted from the control device 2 to the management device 3.

Next, from the start of operation of the supervisory control system, 6
When 0 minutes have passed, the determination unit 7 determines that the address numbers 1 to 200
For, it was judged that the cycle time (30 minutes) was reached again,
For the address numbers 201 to 500, the cycle time (60
Min.), The state data of address numbers 1 to 500 are sequentially read from the buffer 2b and sequentially output to the transmitting / receiving unit 2a. Then, the transmitting / receiving unit 2a sequentially transmits the 500 pieces of state data to the transmitting / receiving unit 3a via the signal line L2. The transmission / reception unit 3a sequentially receives the status data and sequentially outputs the status data to the main control unit 3b,
The main controller 3b outputs the status data to the display 3c.
Therefore, the number of times the signal passes through the signal line L2 is 500 times of the status data transmitted from the control device 2 to the management device 3.

With the above operation, the number of signals passing through the signal line L2 is about 700 times per hour during operation. Then, once the monitoring control system starts to operate once, if it operates continuously for 24 hours a day and continues to operate without stopping for 30 days, about 500,000 times of data will be transmitted and received. Further, although the setting data is transmitted 500 times at the time of setting, the influence of the load on the communication line is slight as compared with the case of transmitting and receiving the data 500,000 times in 30 days.

In this embodiment, the terminal 1 detects only the on / off state of the state monitoring sensor 4, but it detects not only the on / off state but also the value of temperature, humidity, etc. You may do it. Also, the terminal 1
The device connected to is not limited to the state monitoring sensor 4, but may be a load device such as a dimmer or an air conditioner,
When the load device is connected to the terminal device 1, the terminal device 1 may detect the state of the load device.

Further, in the present embodiment, the setting data sets the cycle time for the address number, but the setting time is not limited to the cycle time. For example, the control device 2 may be provided with a clock IC so that the time can be measured and the time can be set for the address number. In this case, for example, for the specific terminal device 1, it is possible to perform time management such that the management device 3 receives the status data at 8:00 every morning. Alternatively, the number of state changes of the state monitoring sensor 4 (changes from on to off, from off to on) may be associated with the address numbers.
Furthermore, the setting data may be set so that correspondences between address numbers and cycle times, correspondences between address numbers and times, and correspondences between address numbers and the number of state changes are mixed.

In this embodiment, the number of the control device 2 is one, but the number of the control device 2 is not limited to one, and a plurality of control devices may be provided such as one for each floor or several floors in the building.

[0045]

Since the supervisory control method and the system thereof according to the present invention are configured as described above, in the invention according to claim 1, the management device is provided at the time of starting or resetting the supervisory control system. The condition data when the condition data is required is set for each terminal and the setting data is transmitted to the control device, and the control device receives and stores the setting data, refers to the setting data, and the condition is satisfied. If there is a terminal device, the status data of the terminal device is transmitted to the management device, so that the management device can obtain one status data only once, without passing the signal through the signal line twice. The management device can obtain status data without sending and receiving unnecessary signals,
Therefore, it is possible to provide a supervisory control method capable of suppressing an increase in the communication amount when the control device transmits the status data of the terminal device to the management device and reducing the load of the transmission / reception processing of the supervisory control system. Play.

According to the invention of claim 2, claim 1
There is an effect that it is possible to provide a supervisory control system that embodies the described invention.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a supervisory control system of the present invention.

FIG. 2 is a conceptual diagram illustrating a format of setting data stored in a setting storage unit.

FIG. 3 is a block diagram showing a configuration of a conventional supervisory control system.

[Explanation of symbols]

 1 Terminal 2 Control Device 3 Management Device 4 Connected Device 5 Setting Condition Transmission Unit 6 Setting Storage Unit 7 Judgment Unit

Claims (2)

[Claims] 1. A monitor control in which a terminal device detects status data of a connected device, a control device sequentially collects and stores the status data of the terminal device, and a management device receives status data from the control device when necessary. In the method, the management device transmits to the control device the setting data in which the condition when the status data is required is set for each terminal device, and the control device receives and stores the setting data and stores the setting data. With reference to the above, if there is a terminal that satisfies the conditions, the monitoring control method is characterized in that the status data of the terminal is transmitted to the management device. 2. A terminal device for detecting status data of a connected device, a control device for sequentially collecting and storing the status data of the terminal device, and a management device for receiving the status data from the control device when necessary. In the supervisory control system, the management device has a setting condition transmission unit for transmitting to the control device the setting data in which the condition when the status data is required is set for each terminal device, and the control device transmits the setting data. A monitor having a setting storage unit for receiving and storing the data, and a determination unit for referring to the setting data and transmitting the status data of the terminal device to the management device if the terminal device satisfies the condition. Control system.