KR19980064919A - Addressable Digital Temperature Control and Monitoring System - Google Patents

Abstract

The present invention relates to an addressable digital temperature control and monitoring system.

Conventionally, as a technology for sensing and monitoring, analyzing, judging, and alarming a temperature for the purpose of heating and cooling, disaster prevention, etc. in a medium or large factory or a building, there is a mechanical or analog type temperature monitoring control device.

The present invention performs centralized control in the main system unit 100 as shown in FIG. 1, and m temperature controllers 300 are grouped in n sub-controllers 200 connected by digital data communication lines. It provides an addressable digital thermo controller and monitering system that enables digital monitoring, control and alarm of temperature control points.

Description

Addressable Digital Temperature Control and Monitoring System

The present invention relates to an addressable digital temperature controller and monitering system.

In particular, the present invention is a remote monitoring system, which is an addressable digital temperature control and monitoring system that can digitally handle temperature monitoring, control and monitoring of medium and large factory complexes and buildings, and as an example of an application field. The present invention relates to an addressable digital temperature control and monitoring system applicable to fire fighting equipment, drying equipment, cooling / heating equipment, disaster prevention systems, and the like.

Conventionally, as a facility for sensing the temperature of a building or the like, there is a mechanical or analog type temperature monitoring device.

However, since the conventional temperature monitoring device has a 1: 1 connection method, it leads to an increase in the construction cost of the line, and it is impossible to detect a temperature or an error occurrence place, and to perform external interlocking control or remote control. Because of the impossible, efficient temperature control and monitoring of medium and large buildings was difficult.

The present invention solves the above-mentioned problems by performing temperature control and monitoring by digital bidirectional data communication method, and it is possible to identify individual temperature and trouble spots on the control points, and to monitor the central situation in the main system. And an addressable digital temperature control and monitoring system capable of interlocking control.

1 is a block diagram showing the overall configuration of an addressable digital temperature control and monitoring system of the present invention.

2 is a flowchart showing an operation procedure of the system of the present invention.

Figure 3 is a block diagram showing the internal configuration of the temperature controller in the system of the present invention

Figure 4 is a block diagram showing the internal configuration of the sub-controller in the system of the present invention

1 is a block diagram showing the overall configuration of an addressable digital temperature control and monitoring system according to the present invention. The main system unit 100, the sub-controller 200, and the temperature controller 300 are shown.

The main system unit 100 is based on the PC as a place to perform the role of the center disaster prevention center.

The main system 100 concentrates, analyzes and processes all data related to remote monitoring so that the operator can easily manage all the systems, and monitors and displays for displaying the status of each control point and various information. It is equipped with CPU for execution, HDD / RAM for data storage, RS-485 communication interface means for bidirectional data communication with each control point, printer system for printing output of first information, etc., and suitable PC operating system (OS) Have

The n sub controllers 200 are connected to the main system unit 100 through a communication line, and m temperature controllers 300 are connected to each sub controller 200.

The operation of the addressable digital temperature control and monitoring system of the present invention thus made is divided into normal operation and abnormal situation, and the control procedure is shown in FIG.

In the case of normal operation, the temperature controller 300 detects the normal temperature, transmits the detected temperature data to the sub-controller 200 and performs the normal temperature display.

The sub-controller 200 performs normal temperature data transmission and reception, prepares an external interlocking device, determines whether there is an abnormality between the main system unit and the temperature controller, and controls the temperature controller 300, and the main system unit 100. Perform communication with).

The main system unit 100 receives the temperature data sent from the sub-controller 200 to display the entire temperature, maintains the normal state, and also records (stores) the temperature data and checks the communication state.

When an abnormal condition occurs, the temperature controller 300 detects the abnormal temperature, transmits the abnormal temperature data to the sub-controller 200, outputs an external interlocking contact, and displays the abnormal temperature.

The sub-controller 200 receives the abnormal temperature data sent from the temperature controller 300 and transmits the abnormal temperature data to the main system unit 100, and also performs the automatic interworking and center control preparation of the external device, and the main system unit 100 and the temperature. The abnormality search for the controller 300 is continued.

The main system unit 100 receives the abnormal temperature detection data sent from the sub-controller 200 to display the overall temperature, the abnormal temperature, and the occurrence point of the abnormal temperature, and to perform a voice warning, an abnormal signal, and a corresponding drawing (building). In the case of the building floor plan and the output of the control point-temperature monitoring point-normal / abnormal position).

As described above, the temperature controller 300 controls the temperature monitoring point and collects, analyzes, and displays the temperature data, and transmits the data to the sub-controller 200. The internal configuration is illustrated in FIG. 3.

As shown in FIG. 3, the temperature controller 300 includes a temperature sensor 301 for monitoring a temperature of a control point and an analog digital converter 302 for converting a temperature signal detected by the temperature sensor 301 into a digital signal. And a dip switch unit (DIP-SW) 303 for setting the ID of the temperature controller and setting the fire recognition temperature, and a communication interface unit (RS-485) 304 for data communication with the sub-controller 200. ), An LED unit 305 for a fire occurrence alarm, a 7-segment display unit 306 for displaying information such as currently detected room temperature or a set temperature, and a relay output for outputting a fire occurrence alarm signal as a relay contact signal. And a microcomputer 308 for controlling the temperature setting, monitoring and analysis, determination of an abnormal state, communication with a sub-controller, and the like.

The temperature controller 300 has a unique ID address. The ID address is set using the dip switch unit 303. The set ID address is unique to recognize and control the temperature controller in the sub-controller main system unit. It is used as ID.

In addition, the dip switch unit 303 sets a temperature to be recognized as a fire and the information set as described above is managed by the microcomputer 308.

Since the temperature detection signal sensed by the temperature sensor 301 is an analog signal, the analog signal is converted into digital data by the analog digital converter 302 and input to the microcomputer 308.

The microcomputer 308 compares the input digital temperature detection information with preset fire recognition temperature information to determine whether there is an abnormality, and the temperature sensing data and the abnormality data to the sub-controller 200 through the communication interface 304. In addition to this, the current room temperature is displayed on the display unit 306 at regular time intervals.

In addition, various data and control information sent from the sub-controller 200 are input to the microcomputer 308 through the communication interface 304, and are interpreted and processed.

On the other hand, when the microcomputer 308 determines that the detection temperature is abnormal, a fire occurrence alarm is performed. The alarm is divided into one step (attention warning step) and two steps (fire occurrence alarm step).

The output of the alarm signal is performed by lighting the corresponding LED through the LED unit 305, and also outputs the relay contact signal through the relay output unit 307.

In addition, when the temperature sensor 301 is diagnosed as a failure or if the temperature is not detected, it is determined that the sensor is abnormal and sends the corresponding information to the sub-controller 200 and releases the contact output of the relay output unit 307 and also the LED. The unit 305 turns on the corresponding LED to inform the sensor abnormality.

Meanwhile, as described above, the sub controller 200 performs data communication with the main system unit 100, controls the temperature controller 300, and analyzes the temperature and alarm information received from the temperature controller 300. Along with the sensor contact output box, and plays a role of relaying the temperature, alarm information for each temperature controller 300 to the main system unit 100.

The sub-controller 200 has a unique ID address, can be used by connecting n to the same communication network, and controls the m temperature controllers in groups.

4 shows the internal structure of the sub-controller 200, including setting the ID address of the sub-controller, and setting the number of temperature controllers to be controlled by the sub-controller, including a dip switch unit 201, and sensing information. Communication status and relay with the relay input unit 202 of the various information, the communication interface unit (RS-485) 203a, 203b for communication with the temperature controller 300 and the main system unit 100, and the main system unit LED unit 204 for displaying input / output, 7-segment display unit 205 for displaying information such as temperature controller number, current temperature and alarm status, relay of sensing information and alarm information of grouped temperature controller And an output unit 206, and a microcomputer 207 for performing communication with the temperature controller, analysis processing of temperature and alarm information, contact output, and communication control with the main system unit.

The sub-controller 200 configured as described above sets a unique ID address using the dip switch unit 201 to process its own recognition information, and the sub-controller 200 controls the magnetic sub-controller 200 using the dip switch unit 201. The number of the temperature controller 300 to be recognized.

The relay input unit 202 receives the operation information of the grouped detectors as a relay contact signal or sends information required for temperature monitoring and control such as power failure, gas discharge, and manual operation as a relay contact signal to the microcomputer 207. give.

The communication interface unit 203a receives the temperature sensing information and the alarm signal sent from the temperature controller 300 and sends it to the microcomputer 207 or outputs data to be sent from the microcomputer 207 to the temperature controller 300. The communication interface unit 203b transmits and receives data between the main system unit 100 and the microcomputer 207 of the sub controller 200.

The microcomputer 207 recognizes its own ID address, receives and analyzes the temperature and alarm information sent from the temperature controller 300, sends a sensor contact output signal through the relay output unit 206, and provides a disaster prevention center. The main system unit 100 relays the temperature and alarm information for each temperature controller 300.

In addition, the operation state of the relay input unit 202 or the relay output unit 206 is displayed by the LED unit 204 driven under the control of the microcomputer 207, and the LED unit 204 is provided with the main system unit 100. The communication status with) is also displayed.

When an alarm occurs in any one of the plurality of detector groups, that is, the temperature controller of the first group or the temperature controller of the second group, the microcomputer 207 relay contact point for the siren alarm through the relay output unit 206. It outputs a signal, and if an alarm occurs in both the first group and the second group temperature controller, it outputs a contact signal through the relay output unit 206 to perform gas discharge with this relay contact signal.

The display unit 205 displays the number of the corresponding temperature controller and the current temperature and alarm state under the control of the microcomputer 207. For example, information such as a normal state, a caution, a fire, a sensor error, a communication error, and the like is displayed. By displaying as a promised symbol, it clearly displays all the matters related to temperature monitoring control.

As described above, the addressable digital temperature control and monitoring system of the present invention performs temperature monitoring, control, and alarm through digital data communication, thereby ensuring high reliability in temperature control and monitoring information.

In addition, since it performs bi-directional data communication, remote control is possible, and complex interworking control with communication and external devices is also possible.

In addition, since the addressable digital temperature control and monitoring system of the present invention is controlled by bidirectional digital data communication, the wiring can be simplified, and accurate temperature identification and identification of an error occurrence point for each temperature control point can be performed.

In particular, the present invention has excellent scalability and can be used semi-permanently because the digital temperature control is performed by the addressing method, and centralized control is possible at the main disaster prevention center to enable quick and accurate response to abnormal conditions.

Claims (2)

The main system unit 100 and the main system unit 100 are connected to the digital data communication line and have a plurality of sub-controllers 200 having a unique ID address and the sub-controller 200 to the digital data communication line. With a plurality of temperature controller 300 having a unique ID address, The main system unit 100 is based on the PC as a place to play a role of the center disaster prevention center; By centralizing and analyzing and processing all data related to remote monitoring, the operator can easily manage all the systems, monitor for displaying the status of each control point and various information, CPU for executing disaster prevention programs, and data storage. HDD / RAM for communication, RS-485 communication interface means for bidirectional data communication with each control point, printer system for printing output of the first information, etc., and includes an appropriate PC operating system (OS), The sub-controller 200 includes means for analyzing and processing temperature monitoring information of the temperature controller 300 and for digital data communication between the temperature controller 300 and the main system unit 100. The temperature controller 300 digitally processes and analyzes the temperature sensor and the signal detected by the temperature sensor to determine whether there is an abnormality, display of the detected information, and perform digital data communication with the sub-controller 200. And an addressable digital temperature control and monitoring system configured to include means. The method of claim 1, wherein the sub-controller (200); A dip switch unit 201 for setting the ID address of the sub-controller and setting the number of temperature controllers to be controlled by the sub-controller, a relay input unit 202 for various types of information including sensing information, and a temperature controller 300. ) And the communication interface units 203a and 203b for communication with the main system unit 100, the LED unit 204 for displaying the communication status and relay input / output with the main system unit, and the number and current of the temperature controller. 7 segment display unit 205 for displaying information such as temperature and alarm status, relay output unit 206 of detection information and alarm information of the grouped temperature controller, communication with the temperature controller, A microcomputer 207 for performing analysis processing, contact output, and communication control with the main system unit; The temperature controller 300 has a temperature sensor 301 for monitoring the temperature of the control point, an analog digital converter 302 for converting the temperature signal detected by the temperature sensor 301 into a digital signal, and the temperature controller itself. Dip switch unit (DIP-SW) 303 for setting ID and setting fire recognition temperature, communication interface unit 304 for data communication with sub-controller 200, LED unit for fire alarm ( 305, a seven-segment display unit 306 for displaying information such as currently detected room temperature or set temperature, a relay output unit 307 for outputting a fire occurrence alarm signal as a relay contact signal, and the temperature setting and monitoring And a microcomputer 308 for controlling analysis, determination of abnormal conditions, communication with the sub-controller, and the like.