WO2010069178A1

WO2010069178A1 - Network-shaped hierarchical fire control system

Info

Publication number: WO2010069178A1
Application number: PCT/CN2009/073575
Authority: WO
Inventors: 陈倩茵; 杨莉; 陈华民; 汪少勇; 谢创树
Original assignee: 广东省电力设计研究院
Priority date: 2008-12-19
Filing date: 2009-08-27
Publication date: 2010-06-24
Also published as: CN101439223A; CN101439223B

Abstract

A network-shaped hierarchical fire control system is provided, and the system includes a central signal processing unit and a plurality of fire detectors, control modules and intermediate relays. The output terminal of each fire detector is connected to an input terminal of the central signal processing unit via a first signal bus, the output terminal of the central signal processing unit is connected to an input terminal of each control module via a second signal bus, the output terminal of each control module is connected to an input terminal of at least one intermediate relay, and the output terminal of each intermediate relay is connected to at least one fire equipment.

Description

Specification A network level fire control system

[1] Technical field

[2] The present invention relates to the field of fire protection equipment, and in particular to a network level fire control system.

[3] Background Art

[4] In the prior art, a fire control system for a power station or a nuclear power plant, in particular, a fire control system using an electric blasting glass bubble type automatic water spray fire-fighting device, generally by a cable interlayer in a building The automatic sprinkler system and in the event of a fire, the automatic sprinkler is broken to achieve automatic monitoring and control functions. The method used in this fire-fighting system is that the fixed fire-fighting equipment is responsible for the fixed fire-fighting range. All the wirings are hard-wired, and manual operation is performed in the event of a dangerous situation. Therefore, there is a high labor cost and a fire-fighting action. And the accuracy is not high and so on. In other automatic sprinkler control systems, it is conventional practice that each automatic sprinkler corresponds to a control module and requires a DC 24V electrical signal to break during operation, thereby automatically starting. Spray water. In order to realize the control function of the fire control system, it is necessary to use a plurality of modules for one-to-one control, so there are problems such as high construction cost, high energy consumption, and high labor cost for maintenance and repair. Further, the setting of the interlocking control zone of the prior art automatic sprinkler is fixed, so there is a problem that it is difficult to adjust the partition setting by itself.

[5] Summary of the invention

[6] The present invention provides a network-like hierarchical fire control system which is simple in structure, low in construction cost, and easy to maintain.

[7] The technical solution of the present invention is: A network level fire control system, comprising: a central signal processing unit, a plurality of fire detectors, a control module and an intermediate relay;

An output of each fire detector is connected to an input of the central signal processing unit via a first signal bus, and an output of the central signal processing unit is connected to an input of each control module via a second signal bus. An output of each control module is coupled to an input of at least one intermediate relay, and an output of each intermediate relay is coupled to at least one firefighting device;

Each fire detector is used to detect fire alarms and to signal the detected signal with the fire detector ID Outgoing to the central signal processing unit, the central signal processing unit partitions the received signal with the ID identification according to a predetermined rule, and outputs a control signal to the corresponding control module; the control module is based on the received control signal Control the intermediate relay connected to it to activate the corresponding fire equipment.

[8] The network level fire control system of the present invention, a plurality of fire detectors input the detected signals to the central signal processing unit through the first signal bus, and the connection between the control module and the intermediate relay may be one-to-one The connection between the intermediate relay and the fire fighting device can also be one-to-one or one-to-many, and the fire control system of the present invention forms a network-like hierarchical structure, so that the present invention achieves such a The beneficial effect is that, on the one hand, the input signal of the fire detector is partitioned by using the central signal processing unit, and the corresponding control module is driven according to the partition where the input signal is located, so that there is a many-to-one relationship between the fire detector and the control module. , the number of control modules is greatly reduced, thereby reducing the construction and running costs; on the other hand, since the field setting method for partitioning the signals input by the fire detectors is completed in the central signal processing unit, the fire protection of the present invention is also achieved. Control system control and partition resetting are easier; In addition, because the signal bus is used to centrally transmit signals and the node layer is extended, the field wiring is simpler, the cost is reduced, and when new devices or modules need to be added, no large firmware is needed. The modification requires only adding nodes and making simple modifications, thereby making the fire control system of the present invention more versatile and upgradeable.

[9] BRIEF DESCRIPTION OF THE DRAWINGS

1 is a structural schematic diagram of an embodiment of a network level fire control system of the present invention; FIG. 2 is a structural schematic diagram of another embodiment of the network level fire control system of the present invention; Flow chart of the control method of the fire control system;

Figure 4 is a flow chart showing the control method of the fire control system shown in Figure 2.

[10] Specific implementation

[11] The network-level fire control system of the invention can detect the fire danger by itself and can control the fire-fighting equipment to work, and can be used for controlling the network-like electric blasting glass bubble type automatic water spray fire-fighting equipment of the nuclear power plant. In the fire control system of the present invention, on the one hand, the input signal of the fire detector is partitioned by using the central signal processing unit, and the corresponding control module is driven according to the partition where the input signal is located, so that between the fire detector and the control module is The many-to-one relationship greatly reduces the number of control modules Less, thereby reducing the construction and running costs; on the other hand, the field setting method for partitioning the signal input by the fire detector is completed in the central signal processing unit, and also controls and partitions the fire control system of the present invention. It is easier to reset; in addition, because the signal bus is used to centrally transmit signals and the node layer is extended, the field wiring is simpler, the cost is reduced, and when new devices or modules need to be added吋There is no need to make major firmware changes, only need to add nodes and make simple modifications, so that the fire control system of the present invention is more universal and upgradeable.

[12] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing the construction of a network-like hierarchical fire control system of the present invention in an embodiment. The network-level fire control system in this embodiment includes n fire detectors (Dl, D2, ... Dn), a central signal processing unit CSPU, and X control modules (Cl, C2... Cx), y intermediate relays (R1

, R2 Ry);

The output of each fire detector is connected to an input of the central signal processing unit CSP U via a first signal bus Bus1, and the output of the central signal processing unit CSPU is controlled by a second signal bus B us2 The inputs of the modules are connected, the output of each control module is connected to the input of at least one intermediate relay, and the output of each intermediate relay is connected to at least one fire-fighting device; in Figure 1, only the intermediate relay R1 and the firefighting are shown Equipment Fl, F2... Fp connection, intermediate relay Ry-2 is connected with fire fighting equipment Fm-5, Fm-4, intermediate relay Ry-1 is connected with fire fighting equipment Fm-3, Fm-2, intermediate relay Fm Connected to fire-fighting equipment Fm-1, Fm. In practical applications, each intermediate relay can be connected to at least one fire-fighting equipment. In a preferred embodiment, the number of fire-fighting equipment connected to each intermediate relay is 1-8. .

[14] Each fire detector is used to detect a fire alarm, and outputs the detected signal with a fire detector ID identification to the central signal processing unit CSPU, which is received by the central signal processing unit CSPU according to a predetermined rule. The signal with the ID identification is partitioned, and the control signal is output to the corresponding control module; the control module controls the intermediate relay connected thereto according to the received control signal to activate the corresponding fire protection device. In a preferred embodiment, the fire fighting apparatus may be an electric blasting glass automatic sprinkler.

[15] The network-level fire control system in this embodiment is used to control m fire-fighting equipments Fl, F2... Fm

According to the location, starting conditions or working conditions of these fire detectors and fire fighting equipment The required parameters such as capacity and water capacity are used to partition the n fire detectors and m fire-fighting equipment. For example, nl fire detectors (Dl, D2, D3, ... Dnl) are divided into a zone, which corresponds to the control module C1, it should be understood that such a partition is not a physically visible partition, and Only the partition of the received signal is completed in the central signal processing unit CSPU, and the signal output by the n1 fire detectors is set as the signal of the first zone in the central processing unit, when occurring in the first zone In the event of a fire, any one or two or more of the fire detectors 01, 02, 03, ... Dnl transmit an alarm signal to the first signal bus Bus1 and then to the central signal processing unit CSPU, for the sake of clarity. We refer to the input signal of the first zone as Sinl, and the central signal processing unit CSPU determines the input signal as the signal of the first zone according to the ID identification information carried in the input signal, and generates a control signal Soutl, and then the control signal Soutl is transmitted to the second signal bus Bus2, and then the control signal Sout1 is output to the control module C1 responsible for processing the signal of the first zone, and then the control module C1 activates it according to the control signal Sout1 Relay R1 is connected, the relay apparatus R1 start fire its driven (Fl, F2, ... Fp) according to the preset connection structure, thereby initiating fire fighting. In this embodiment, it can be understood that the number of intermediate relays is less than or equal to the number of fire-fighting equipment, and the number of control modules is less than or equal to the number of intermediate relays, so that the purpose of achieving the same technical effect is minimized. The number of devices or modules used, thereby reducing cost and reducing line complexity.

[16] It should be noted that the connection between the fire detector and the central signal processing unit CSPU, or the connection between the central signal processing unit CSPU and the control module, or the control module and the The connection between the intermediate relays, or the connection between the intermediate relay and the fire fighting device may be a wired connection, or may be a wireless connection, that is, wireless connection through Bluetooth, infrared, WLAN, etc., which can further save Wiring costs, reducing the complexity of the line.

[17] In a preferred embodiment, as shown in FIG. 2, the network level fire control system of the present invention further includes pressure switches 81, 82, ... 8 and feedback modules 11, 12 corresponding to the pressure switches. ...... lz, the specific number of pressures depends on the water pipe arrangement of the fire-fighting equipment, pressure switch can be set at the main water pipe or branch water pipe or other required joints, the pressure setting On the water line of the fire protection device, the pressure-signal signal output is connected via a feedback module to a third signal bus Bus3, which is connected to the other input of the central signal processing unit CSPU The feedback module converts the mechanical signal outputted by the pressure switch to a corresponding electrical signal output to the a central signal processing unit CSPU; wherein the fire extinguishing device works normally (ie, the pipeline water pressure indicator of the fire fighting device is normal), the pressure switch feeds back an acknowledgement signal to the central processing unit through the feedback module, if The central signal processing unit CSPU does not receive the acknowledgment signal within a predetermined time interval, and the central signal processing unit CSPU issues an alarm signal, which in turn can notify the firefighter to repair the fire fighting equipment. The length of the predetermined time can be set as needed, can be set as a fixed parameter in the C SPU, or can be manually set by hand.

[18] When the pipeline water pressure indicator of the fire fighting equipment is normal, the corresponding pressure switch will send a mechanical signal to the feedback module connected thereto, and the feedback module converts the mechanical signal into an electrical signal through the third signal bus. Bus3 is transmitted to the central signal processing unit CSPU, and when an abnormal situation occurs, the pressure switch cannot feed back to the central signal processing unit CSPU an acknowledgment signal indicating that the water pressure of the fire fighting equipment is normal. Therefore, if the central signal processing unit CSPU does not receive the acknowledgment signal fed back by the feedback module through the feedback module, the central signal processing unit CSPU issues a water pressure abnormality warning signal to notify the operator or the maintenance personnel. Manual intervention was carried out to achieve state monitoring. When there is an unexpected failure or equipment aging problem, due to the presence of water pressure feedback, it can be manually checked to improve the system's working efficiency and reduce labor costs.

[19] In addition, the connection between the pressure switch and the feedback module, or the connection between the feedback module and the central signal processing unit may be a wired connection, or may be a wireless connection, that is, through Bluetooth, Infrared, WLAN, etc. for wireless connection, which can further save wiring costs and reduce the complexity of the line.

[20] As shown in FIG. 3, the control method of the network level fire control system of the present invention includes:

5101. The fire detector detects a fire alarm and outputs a fire alarm signal with a fire detector ID identifier;

5102. The central signal processing unit receives the fire alarm signal, partitions the received fire alarm signal according to a predetermined rule, and outputs a control signal to the corresponding control module. The fire alarm signal is partitioned according to a predetermined rule, and the fire alarm signal can be partitioned according to the position of the fire detector and the fire-fighting equipment, the starting condition or the required capacity, water capacity and the like of the working state;

5103. The control module controls the intermediate relay connected thereto according to the received control signal to activate the corresponding fire fighting device. The fire fighting device may be an electric blasting glass automatic sprinkler.

[21] It should be noted that the connection between the fire detector and the central signal processing unit CSPU, Or the connection between the central signal processing unit CSPU and the control module, or the connection between the control module and the intermediate relay, or the connection between the intermediate relay and the fire fighting device may be a wired connection It can also be wirelessly connected, that is, wirelessly connected via Bluetooth, infrared, WLAN, etc., which can further save wiring costs and reduce line complexity.

[22] In a preferred embodiment, as shown in FIG. 4, the control method of the network level fire control system of the present invention further includes step S104 after step S103:

The feedback module converts the mechanical signal output by the pressure switch into a corresponding electrical signal output to the central signal processing unit; after the fire fighting device is working normally, the pressure switch passes through the feedback module to the central The processing unit sends an acknowledgment signal, and if the central signal processing unit does not receive the acknowledgment signal fed back by the feedback module within the predetermined time interval, the central signal processing unit issues an alarm signal.

[23] In addition, the connection between the pressure switch and the feedback module, or the connection between the feedback module and the central signal processing unit may be a wired connection, or may be a wireless connection, that is, through Bluetooth, Infrared, WLAN, etc. for wireless connection, which can further save wiring costs and reduce the complexity of the line.

[24] The principle of the present invention has been described in detail with reference to the specific embodiments. It can be seen that the network hierarchical structure disclosed by the present invention greatly reduces the usage of the control module, thereby reducing the construction cost. Reduces operating energy consumption and greatly reduces the burden on maintenance personnel. In addition, because the signal bus is used to centrally transmit signals and the node layer is extended, the field wiring is simpler, the cost is reduced, and when new devices or modules need to be added, no large firmware is required. The modification requires only adding nodes and making simple modifications, thereby making the fire control system of the present invention more versatile and upgradeable. Further, the pressure switch used in the present invention can realize the feedback of the water pressure state of the fire fighting equipment, and therefore can effectively prevent the problem caused by the insufficient water pressure of the fire fighting equipment.

[25] The embodiments of the invention described above are not intended to limit the scope of the invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

Claim

[1] A network-like hierarchical fire control system, comprising: a central signal processing unit, a plurality of fire detectors, a control module, and an intermediate relay;

An output of each fire detector is connected to an input of the central signal processing unit via a first signal bus, and an output of the central signal processing unit is connected to an input of each control module via a second signal bus. The output of each control module is connected to the input of at least one intermediate relay, and the output of each intermediate relay is connected to at least one fire fighting device; each fire detector is used to detect a fire alarm, and the detected fire detector is detected The ID identified signal is output to the central signal processing unit, the central signal processing unit partitions the received signal with the ID identification according to a predetermined rule, and outputs a control signal to the corresponding control module; the control module receives the signal according to the The incoming control signal controls the intermediate relay connected to it to activate the corresponding fire protection equipment.

[2] The network level fire control system according to claim 1, further comprising: a pressure switch and a feedback module, wherein the pressure switch is disposed on a water pipe passage of the fire fighting device; the signal of the pressure switch The output terminal is connected to the third signal bus through the feedback module, and the third signal bus is connected to the other input end of the central signal processing unit;

The feedback module converts the mechanical signal output by the pressure switch into a corresponding electrical signal output to the central signal processing unit; after the fire fighting device is working normally, the pressure switch passes through the feedback module to the central The processing unit feeds back an acknowledgment signal, and if the central signal processing unit does not receive the acknowledgment signal within a predetermined time interval, the central signal processing unit issues an alarm signal.

[3] The network level fire control system according to claim 1, wherein: the connection between the fire detector and the central signal processing unit, or the central signal processing unit and the control module A connection between the connection, or a connection between the control module and the intermediate relay, or a connection between the intermediate relay and the fire fighting device is a wireless connection.

[4] The network level fire control system according to claim 1, wherein: the connection between the fire detector and the central signal processing unit, or the central signal processing unit and the control module a connection between, or a connection between the control module and the intermediate relay, Or the connection between the intermediate relay and the fire fighting device is a wired connection.

[5] The network level fire control system according to claim 2, wherein: the connection between the fire detector and the central signal processing unit, or the central signal processing unit and the control module a connection between the control module and the intermediate relay, or a connection between the intermediate relay and the fire fighting device, or a connection between the pressure switch and the feedback module, Or the connection between the feedback module and the central signal processing unit is a wireless connection.

[6] The network level fire control system according to claim 2, wherein: the connection between the fire detector and the central signal processing unit, or the central signal processing unit and the control module a connection between the control module and the intermediate relay, or a connection between the intermediate relay and the fire fighting device, or a connection between the pressure switch and the feedback module, Or the connection between the feedback module and the central signal processing unit is a wired connection.

[7] The network level fire control system according to any one of claims 1 to 6, wherein: the fire fighting device is an electric blasting glass type automatic water spraying device.