KR100959099B1 - Method and Apparatus for alarm transmitting in Building Automation System - Google Patents

Abstract

The present invention discloses an alarm transmission method and a control device in a building automatic control system.

The present invention stores the alarm generated in each controller in the automatic building control system in the alarm list and deletes the corresponding alarm from the alarm list only when an ACK is received from the upper controller, and the untransmitted alarm remains in the list to be retransmitted.

Therefore, if an operator cannot receive an alarm due to a loss of communication in the building automatic control system or an error in the hardware, each controller in the building effectively stores and manages the alarm so that the alarm disappears and the reliability of alarm transmission can be improved. .

Description

Method and Apparatus for Alarm Transmission in Building Automatic Control System {Method and Apparatus for alarm transmitting in Building Automation System}

The present invention relates to a building automatic control system, and more particularly, to efficiently transmit alarms by managing and storing alarms by each controller in a building in order to secure reliability of alarm transmission notified to an operator in a building automatic control system. It is about.

In general, there are many kinds of controllers in BACnet (Building Automation and Control Networks) building automation control system, each of which is responsible for monitoring and controlling many facilities in the building.

When an abnormality such as fire or explosion occurs in a building's facilities, the automatic control system notifies the building operator through an alarm, and the building operator recognizes and reacts to the situation through an alarm to take immediate action to prevent an accident. can do. Alarms can also be an important clue to tracking down the cause of an accident.

The building automation control system includes a building controller that connects the end-end device, operator PC, end device and operator PC of a direct digital controller (DDC) or I / O module. Alarms from DDC (Direct Digital Controller) or I / O module are sent to the building controller, and the building controller converts the received alarm into TCP / IP data and sends it to the operator PC.

However, if an error occurs in the hardware, such as a building operator's PC, or the network is disconnected, important alarms may be lost. The same is true for alarms occurring on the building controller itself. In such a situation, the building operator may not be aware of the alarm and may not be able to respond immediately to an emergency, resulting in a major accident.

The present invention can solve the alarm disappearance and increase the reliability of alarm transmission by effectively storing and managing alarms in each building controller when the operator cannot receive an alarm because communication is cut off in the building automatic control system or there is a problem in hardware. Make sure

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

Alarm transmission method in the automatic building control system of the present invention for achieving the above technical problem, the step of determining whether the input data satisfy the alarm condition; Registering alarm information of input data satisfying an alarm condition in an alarm list; Transmitting an alarm signal generated based on the alarm information registered in the alarm list; And deleting the corresponding alarm information from the alarm list when receiving the alarm signal confirmation message from the upper control device.

The control device for alarm transmission of the automatic building control system of the present invention for achieving the above technical problem, the data analysis unit for determining whether the input data satisfy the alarm condition; A list manager which registers alarm information of input data satisfying the alarm condition to an alarm list and deletes the corresponding alarm information from the alarm list when receiving the alarm signal confirmation message from the upper control device; And an alarm signal generator configured to generate an alarm signal based on the alarm information registered in the alarm list.

The present invention for achieving the above technical problem can provide a computer-readable recording medium recording a program for executing the alarm transmission method in a computer in the automatic building control system.

According to the present invention, the alarm generated in each controller in the automatic building control system is stored in the alarm list and the corresponding alarm is deleted from the alarm list only when an ACK is received from the upper controller, and the untransmitted alarm remains in the list to be retransmitted. Therefore, alarms from DDC or building controllers (routers) can be reliably transmitted to the operator.

In addition, the present invention can be connected to the SMS transmission module to the building controller and can be used to notify the alarm to the operator's mobile phone using this can transmit the alarm to the operator reliably.

The present invention can stably transmit alarms to the operator even if communication is temporarily interrupted or a problem occurs in the hardware, thereby improving the stability and reliability of the entire building automatic control system.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the same elements among the drawings are denoted by the same reference numerals and symbols as much as possible even though they are shown in different drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

1 illustrates a network configuration of an automatic building control system according to an embodiment of the present invention.

Referring to FIG. 1, a network of a building automatic control system includes a LonTalk / RS485 network 100 and a TCP / IP network 150.

The LonTalk / RS485 network 100 includes subordinate controllers such as DDCs (Direct Digital Controllers) 101 and 103 and I / O modules (Input / Output module) 105, and the PCs in the TCP / IP network 150. Operator servers such as 151 and 155 exist.

The lower controllers, such as the DDCs 101 and 103 and the I / O modules 105, are end devices constituting the building control system, which are scattered throughout the building and digitally control the data necessary for analogue measurement of the surrounding environment. It converts the data, registers the alarm that occurs when the data satisfies the alarm condition, and generates and sends the alarm signal. The DDCs 101 and 103 and the I / O module 105 and the like perform LonTalk / RS485 communication with the building controller 130. The lower controller deletes the alarm from the list when it receives an ACK from the building controller, and immediately resends the alarm signal periodically or after failure (eg, communication recovery, hardware recovery, etc.) if no ACK is received. do.

The operator server, such as the PCs 151 and 155, monitors the operation status of the building while the operator inquires and controls the values or states of a plurality of controllers scattered throughout the building. The operator server performs TCP / IP communication with the building controller 130.

The building controller 130 performs both LonTalk / RS485 communication and TCP / IP communication and operates as a router connecting the lower controller to the operator server. That is, the building controller 130 connects the LonTalk / RS485 network and the TCP / IP network. The building controller 130 may receive an alarm signal from the lower controller 110, transmit the alarm signal to the upper operator PC 150, and generate an alarm signal by itself. The building controller 130 registers the alarm in a list and generates and transmits an alarm signal. The building controller 130 deletes the alarm from the list when an ACK is received from the upper controller or the operator server, and periodically or fails to cancel the alarm signal when the ACK is not received (for example, communication recovery or hardware recovery). And then resend immediately.

2 illustrates an alarm transmission method in the automatic building control system of FIG. 1 according to an embodiment of the present invention.

In order for the alarm generated by the DDC to be delivered to the operator server, the building controller, which is a router, needs to receive the alarm signal of the DDC, and the operator server must receive the alarm signal transmitted from the building controller.

Referring to FIG. 2, each of the DDCs 201 and 203 and the I / O modules 205 transmits various alarms to the building controller 230 and receives an acknowledgment message ACK from the building controller 230. . The building controller 230 also transmits its own alarm or an alarm received from the DDCs 201 and 203 and the I / O module 205 to the operator server 250 and receives an acknowledgment message (ACK) from the operator server 250. do. Each controller may determine whether an alarm has been successfully transmitted according to whether an ACK from the upper controller is received.

3 illustrates a control device for alarm management and transmission according to an embodiment of the present invention. The control device 300 is included in each of the DDC, the I / O module, and the building controller to perform a similar operation.

Referring to FIG. 3, the control device 300 includes a data analyzer 310, a list manager 330, an alarm signal generator 350, and a transceiver 370.

The data analyzer 310 analyzes the input data and determines whether the alarm generation condition is satisfied. When the data satisfies the alarm occurrence condition, the alarm information is transmitted to the list manager 330 to generate an alarm. The data analyzer 310 analyzes the data periodically according to a preset rule.

The list manager 330 registers and manages related alarm information received from the data analyzer 310 in a list. The list manager 330 registers the alarm information received from the lower control device in addition to the alarm information in the list.

4 illustrates an example of alarm information registered in an alarm list. Referring to FIG. 4, the alarm list 400 includes an alarm type (system alarm, process alarm), an alarm code (power on / offline for system alarm, and an upper limit of alarm condition for process alarm). / Lower limit threshold, etc.), the address (ADDR) of the module where the alarm occurred, the date and time of the alarm occurrence, and data values. For example, the third alarm registered in the alarm list 400 is a process alarm (alarm type) as an alarm from the first controller (alarm generating module address), and the measurement data exceeds the upper limit threshold (alarm type). , Measured at 150 ° C. at 04:32 seconds on 5 November 2007. The list manager 330 updates the alarm list 400 by adding or deleting alarm information. In FIG. 4, the alarm list in the DDC is shown as an example, but may also be applied to the alarm list in the alarm list building controller. The type of item in the alarm list may be set differently by the operator.

The alarm signal generator 350 generates an alarm signal based on the registered alarm information simultaneously with or immediately after registering the list of alarm information and transmits the alarm signal to the transceiver 370. If the alarm signal is not successfully transmitted, the alarm signal generator 350 repeatedly transmits the alarm signal (for example, periodically or after a failure recovery in the system).

The transceiver 370 transmits the received alarm signal to the upper control device (in case of DDC) or the final management server (in case of building controller or router). The transceiver 370 receives an acknowledgment message (ACK signal) for the transmitted alarm signal from the upper control device or the final management server. It can be seen that the alarm signal has been successfully transmitted through the reception of the ACK signal of the transceiver 370. When the transceiver 370 receives the ACK signal, the list manager 330 deletes corresponding alarm information related to the received ACK signal from the list. When the transceiver 370 does not receive the ACK signal, the alarm signal generator 350 retransmits the alarm signal.

5 illustrates an alarm management and transmission method in a control device in an automatic building control system according to an embodiment of the present invention. The control device is included in each of the DDC, I / O modules and building controller.

Referring to FIG. 5, the control device includes an alarm list for storing various alarm information regarding alarms generated by the control device. In the following, detailed descriptions of contents overlapping with the above description will be omitted.

The control device analyzes the measured data with respect to the surrounding environment (S510), and determines whether the data satisfies the alarm condition (S520).

If the control device satisfies the alarm condition, the control device registers the alarm information in the alarm list to immediately generate an alarm (S530). The control device also registers alarm information included in the alarm signal received from the previous control device in the alarm list.

The control device transmits the alarm signal generated based on the alarm information on the alarm list to the next control device (upper controller or operator server) (S540).

The control device determines whether the ACK signal for the transmitted alarm signal is received from the next control device (S550). If the control device does not receive the ACK signal, it retransmits the alarm signal.

The control device deletes the corresponding alarm information related to the received ACK signal from the alarm list (S560). The control device deletes only the alarm information of the alarm signal related to the ACK signal received within a preset time from the alarm list.

6 illustrates an alarm management and transmission method in a control device in an automatic building control system according to another embodiment of the present invention.

Referring to FIG. 6, the building controller 630 may transmit an alarm signal to an operator using the SMS transmission module 670. The building controller 630 stores not only its own alarm but also alarm information of all the DDC and / or I / O modules below the alarm list. However, when the network is disconnected or a problem occurs in the operator server 610 and the alarm cannot be transmitted, the alarm data may be lost. To this end, the building controller 630 may add an SMS (Short Message Service) transmission module 670 to transmit an alarm signal to the mobile phone 650 of the operator.

The invention can also be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave (for example, transmission via the Internet) . The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the present invention can be easily inferred by programmers in the technical field to which the present invention belongs.

So far, the present invention has been described with reference to preferred embodiments. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims.

Therefore, it will be understood by those skilled in the art that the present invention may be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

1 illustrates a network configuration of an automatic building control system according to an embodiment of the present invention.

2 illustrates an alarm transmission method in the automatic building control system of FIG. 1 according to an embodiment of the present invention.

3 illustrates a control device for alarm management and transmission according to an embodiment of the present invention.

4 illustrates an example of alarm information registered in an alarm list according to an embodiment of the present invention.

5 illustrates an alarm management and transmission method in a control device in an automatic building control system according to an embodiment of the present invention.

6 illustrates an alarm management and transmission method in a control device in an automatic building control system according to another embodiment of the present invention.

Claims (13)

Determining whether the input data satisfies an alarm condition; Registering alarm information of input data satisfying an alarm condition in an alarm list; Transmitting an alarm signal generated based on the alarm information registered in the alarm list; And Deleting the corresponding alarm information from the alarm list when receiving the alarm signal confirmation message from the upper control device; Alarm transmission method in a building automatic control system comprising a. The method of claim 1, And repeatedly transmitting an alarm signal when the alarm signal confirmation message is not received from the upper control device. The method of claim 1, Deleting the alarm information, And deleting only alarm information corresponding to an alarm signal confirmation message received within a preset time from the upper control device from the alarm list. The method of claim 1, And the alarm list includes alarm information of an alarm signal received from a lower control device. The method of claim 1, The alarm information includes an alarm type, an alarm type, an address of a module in which an alarm has occurred, an alarm occurrence date and time, and an input data value. The method of claim 1, The alarm signal is an alarm signal transmission method in the automatic building control system, characterized in that the SMS signal. A data analyzer which determines whether input data satisfies an alarm condition; A list manager to register the alarm information of the input data satisfying the alarm condition in the alarm list and to delete the alarm information from the alarm list when receiving the alarm signal confirmation message from the upper control device; And And an alarm signal generator for generating an alarm signal based on the alarm information registered in the alarm list. The method of claim 7, wherein the alarm signal generation unit, And if the alarm signal confirmation message is not received from the upper control device, repeatedly generating an alarm signal. The method of claim 7, wherein the list management unit, And only alarm information corresponding to an alarm signal confirmation message received within a preset time from the upper control device is deleted from an alarm list. The method of claim 7, wherein the list management unit, And alarm information of the alarm signal received from the lower control device in the alarm list. The method of claim 7, wherein The alarm information includes an alarm type, an alarm type, an address of a module in which an alarm has occurred, an alarm occurrence date and time, and an input data value. The method of claim 7, wherein And an SMS transmission module for converting the alarm signal into an SMS signal and transmitting the SMS signal. A computer-readable recording medium having recorded thereon a program for executing the method according to any one of claims 1 to 6.

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