Detection System for Fire Extinguishing and Explosion Suppression Control Box

Abstract

The present invention relates to a detection system for a fire extinguishing and explosion suppression control box, belonging to the technical field of fire extinguishing and explosion suppression, and solves the problems of missed detection and misjudgment in the manual detection of the fire extinguishing and explosion suppression control box in the prior art. The detection system includes: the human-computer interaction module sends a fire alarm instruction to the CAN communication transceiver module; the CAN communication transceiver module generates corresponding CAN instruction information according to the fire alarm instruction and sends it to the CAN communication interface, and receives CAN frame information through the CAN communication transceiver module, analyzes the CAN frame information to obtain CAN parameter information, and sends the CAN parameter information to the data analysis and processing module; the data acquisition module is used to acquire voltage information and send it to the data analysis and processing module; the data analysis and processing module analyzes and processes the CAN parameter information and voltage information to obtain a detection result, and sends the detection result to the human-computer interaction module for display. The automatic detection of each fault point of the fire extinguishing and explosion suppression control box is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguishing and explosion suppression, and particularly to a detection system for a fire extinguishing and explosion suppression control box. Background Art

[0002] With the development of society and economy, potential fire and explosion hazards in industries involving flammable and explosive substances are obvious, resulting in serious casualties and property losses. In addition, some accidents also cause air pollution and environmental damage, leading to ecological imbalance, bringing huge losses to people's lives and property, and causing great harm to the country's social and economic development. Therefore, the fire extinguishing and explosion suppression control box has a very wide application space.

[0003] In the prior art, when a fire extinguishing and explosion suppression control box fails, generally, potential fault points are checked and tested one by one manually according to experience. During the testing process, the entire fire extinguishing and explosion suppression system is usually connected, and multiple detections are required to locate the fault point.

[0004] However, manual detection has the following disadvantages:

[0005] 1. When detecting a certain fault, some hidden hazards may be missed;

[0006] 2. There may be a situation of misjudgment due to incorrect inspection procedures resulting in incorrect results;

[0007] 3. Detecting together with the entire fire extinguishing and explosion suppression system is too troublesome. There are many components and cables, which are messy and will affect the operation of the detection personnel. Summary of the Invention

[0008] In view of the above analysis, an embodiment of the present invention aims to provide a detection system for a fire extinguishing and explosion suppression control box to solve the problems of missed detection and misjudgment in manual detection of a fire extinguishing and explosion suppression control box in the prior art.

[0009] An embodiment of the present invention provides a detection system for a fire extinguishing and explosion suppression control box. The detection system includes a CAN communication transceiver module, a data acquisition module, a data analysis and processing module, and a human-machine interaction module;

[0010] The human-machine interaction module is connected to the CAN communication transceiver module and sends a fire alarm instruction to the CAN communication transceiver module;

[0011] The CAN communication transceiver module is used to generate corresponding CAN instruction information according to the fire alarm instruction, send the CAN instruction information to the CAN communication interface of the fire extinguishing and explosion suppression control box, receive the CAN frame information sent by the fire extinguishing and explosion suppression control box through the CAN communication transceiver module, parse the CAN frame information to obtain CAN parameter information, and send the CAN parameter information to the data analysis and processing module;

[0012] The data acquisition module is connected to the voltage control signal output interface of the fire extinguishing and explosion suppression control box, and is used to collect the voltage information output by the fire extinguishing and explosion suppression control box and send the voltage information to the data analysis and processing module;

[0013] The data analysis and processing module analyzes and processes the CAN parameter information and the voltage information to obtain the detection result of the fire extinguishing and explosion suppression control box, and sends the detection result to the human-computer interaction module;

[0014] The human-computer interaction module is also used to display the detection result of the fire extinguishing and explosion suppression control box.

[0015] Based on the further improvement of the above detection system, the CAN parameter information includes one or more of the following:

[0016] The internal number information of the control box;

[0017] The alarm information of the passenger compartment;

[0018] The alarm information of the power compartment;

[0019] The alarm information of the bottom compartment;

[0020] The working condition information of the passenger compartment;

[0021] The working condition information of the power compartment;

[0022] The working condition information of the bottom compartment.

[0023] Based on the further improvement of the above detection system, the data acquisition module includes a plurality of signal acquisition circuits, and each signal acquisition circuit is used to collect a path of voltage information output by the fire extinguishing and explosion suppression control box.

[0024] Based on the further improvement of the above detection system, the signal acquisition circuit is a voltage-dividing acquisition circuit, and the voltage-dividing acquisition circuit includes a pull-up resistor R1, a voltage-dividing resistor R2, and a voltage-dividing resistor R3;

[0025] One end of the voltage-dividing resistor R2 is connected to one end of the pull-up resistor R1 and serves as the input end of the voltage-dividing acquisition circuit to be connected to the voltage control signal output interface of the fire extinguishing and explosion suppression control box, and the other end of the pull-up resistor R1 is connected to the pull-up power supply;

[0026] The other end of the voltage-dividing resistor R2 serves as the output end of the voltage-dividing acquisition circuit and is connected to the data analysis and processing module; the other end of the voltage-dividing resistor R2 is also connected to one end of the voltage-dividing resistor R3, and the other end of the voltage-dividing resistor R3 is grounded.

[0027] Based on the further improvement of the above detection system, the detection system further includes a data output module;

[0028] The data output module is connected to the human-machine interaction module and the fire extinguishing and explosion suppression control box, and is used to receive the analog instruction sent by the human-machine interaction module, and send an analog signal to the fire extinguishing and explosion suppression control box or directly control the switch state of the fire extinguishing and explosion suppression control box according to the analog instruction, so as to detect the fire extinguishing and explosion suppression control box.

[0029] Based on the further improvement of the above detection system, the data output module includes an analog thermocouple output circuit and a thermocouple conversion module; the analog instruction includes an analog thermocouple instruction; the analog signal includes an analog thermocouple signal;

[0030] The thermocouple conversion module is connected to the human-machine interaction module, and is used to receive the analog thermocouple instruction sent by the human-machine interaction module, generate a first control instruction signal and the analog thermocouple signal according to the analog thermocouple instruction, and send the first control instruction signal and the analog thermocouple signal to the analog thermocouple output circuit;

[0031] The analog thermocouple output circuit sends the analog thermocouple signal to the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box under the control of the first control instruction signal.

[0032] Based on the further improvement of the above detection system, the analog thermocouple output circuit includes a first inverter, a first resistor, a first power transistor, a first diode, a first electromagnetic relay and a current limiting resistor;

[0033] The input end of the first inverter is used to receive the first control instruction signal, the output end is connected to one end of the first resistor, the other end of the first resistor is connected to the INPUT port of the first power transistor, the drain port of the first power transistor is connected to the positive pole of the first diode and one end of the control coil of the first electromagnetic relay, and the negative pole of the first diode is connected to the power supply and the other end of the control coil of the first electromagnetic relay;

[0034] The static contact of the first electromagnetic relay is connected to one end of the current limiting resistor, and the other end of the current limiting resistor is used to receive the analog thermocouple signal; the moving contact of the first electromagnetic relay is connected to the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box.

[0035] Based on the further improvement of the above detection system, the data output module includes an analog working condition circuit and a working condition conversion module; the analog instruction includes an analog working condition instruction;

[0036] The working condition conversion module is connected to the human-machine interaction module, and is configured to receive the simulated working condition instruction sent by the human-machine interaction module, generate a second control instruction signal according to the simulated working condition instruction, and send the second control instruction signal to the simulated working condition circuit;

[0037] The simulated working condition circuit is connected to the working condition switch control interface of the fire extinguishing and explosion suppression control box, and the simulated working condition circuit directly controls the working condition switch state of the fire extinguishing and explosion suppression control box according to the second control instruction signal.

[0038] Based on a further improvement of the above detection system, the simulated working condition circuit includes a second inverter, a second resistor, a second power transistor, a second diode, and a second electromagnetic relay;

[0039] The input end of the second inverter is configured to receive the second control instruction signal, the output end is connected to one end of the second resistor, the other end of the second resistor is connected to the INPUT port of the second power transistor, the drain port of the second power transistor is connected to the positive electrode of the second diode and one end of the control coil of the second electromagnetic relay, and the negative electrode of the second diode is connected to the power supply and the other end of the control coil of the second electromagnetic relay;

[0040] The static contact of the second electromagnetic relay is grounded, and the moving contact of the second electromagnetic relay is connected to the working condition switch control interface of the fire extinguishing and explosion suppression control box.

[0041] Based on a further improvement of the above detection system, the data output module includes a plurality of the simulated working condition circuits and the corresponding working condition conversion modules, and each of the simulated working condition circuits and the corresponding working condition conversion modules independently controls one of the working condition switch control interfaces of the fire extinguishing and explosion suppression control box;

[0042] Among them, the working condition switch control interfaces of the fire extinguishing and explosion suppression control box include the war / peace switch interface of the crew compartment, the automatic / semi-automatic state switch interface of the power compartment, and the automatic / semi-automatic state switch interface of the bottom compartment.

[0043] Compared with the prior art, the present invention can at least achieve one of the following beneficial effects:

[0044] 1. The present invention controls the fire alarm state of the compartments controlled by the fire extinguishing and explosion suppression control box through the CAN communication transceiver module, and realizes the automatic detection of each fault point of the fire extinguishing and explosion suppression control box by receiving the CAN frame information and voltage information sent by the fire extinguishing and explosion suppression control box.

[0045] 2. The present invention simulates the thermocouple voltage change curve controlled by the fire extinguishing and explosion suppression control box and controls the states of the respective switch interfaces of the fire extinguishing and explosion suppression control through the data output module, and can perform a more comprehensive detection of the fault points of the fire extinguishing and explosion suppression control box.

[0046] In the present invention, the above technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following description, and some advantages will be obvious from the description, or can be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the content specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings are only for the purpose of showing specific embodiments, and are not considered as a limitation to the present invention. Throughout the drawings, the same reference signs denote the same components.

[0048] Figure 1 FIG. 1 is one of the schematic structural diagrams of a detection system for a fire extinguishing and explosion suppression control box provided by an embodiment of the present invention;

[0049] Figure 2 FIG. 2 is another schematic structural diagram of a detection system for a fire extinguishing and explosion suppression control box provided by an embodiment of the present invention;

[0050] Figure 3 FIG. 3 is the schematic structural diagram of a voltage division acquisition circuit provided by an embodiment of the present invention;

[0051] Figure 4 FIG. 4 is one of the schematic structural diagrams of a detection system for a fire extinguishing and explosion suppression control box provided by an embodiment of the present invention;

[0052] Figure 5 FIG. 5 is the schematic structural diagram of an analog thermocouple output circuit provided by an embodiment of the present invention;

[0053] Figure 6 FIG. 6 is the schematic structural diagram of an analog working condition circuit provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0054] The following will specifically describe the preferred embodiments of the present invention with reference to the drawings, in which the drawings form a part of the present application and are used together with the embodiments of the present invention to explain the principles of the present invention, and are not used to limit the scope of the present invention.

[0055] A specific embodiment of the present invention discloses a detection system for a fire extinguishing and explosion suppression control box, as Figure 1 shown, the detection system includes a Controller Area Network (CAN) communication transceiver module, a data acquisition module, a data analysis and processing module, and a human-machine interaction module;

[0056] The human-machine interaction module is connected to the CAN communication transceiver module and sends a fire alarm instruction to the CAN communication transceiver module;

[0057] The CAN communication transceiver module is used to generate corresponding CAN instruction information according to the fire alarm instruction, send the CAN instruction information to the CAN communication interface of the fire extinguishing and explosion suppression control box, receive the CAN frame information sent by the fire extinguishing and explosion suppression control box through the CAN communication transceiver module, parse the CAN frame information to obtain CAN parameter information, and send the CAN parameter information to the data analysis and processing module;

[0058] The data acquisition module is connected to the voltage control signal output interface of the fire extinguishing and explosion suppression control box, and is used to collect the voltage information output by the fire extinguishing and explosion suppression control box and send the voltage information to the data analysis and processing module;

[0059] The data analysis and processing module analyzes and processes the CAN parameter information and the voltage information to obtain the detection result of the fire extinguishing and explosion suppression control box, and sends the detection result to the human-computer interaction module;

[0060] The human-computer interaction module is also used to display the detection result of the fire extinguishing and explosion suppression control box.

[0061] As Figure 1 shown, the fire extinguishing and explosion suppression control box includes a CAN communication interface and a voltage control signal output interface.

[0062] Specifically, the CAN communication interface is connected to the CAN communication transceiver module of the detection system through the CAN bus, and the fire extinguishing and explosion suppression control box can perform CAN data interaction with the detection system through the CAN communication interface. The fire extinguishing and explosion suppression control box can send CAN frame information to the detection system, and the detection system can also send CAN instruction information to the fire extinguishing and explosion suppression control box.

[0063] It should be noted that after connecting the CAN communication interface of the fire extinguishing and explosion suppression control box to the CAN communication transceiver module of the detection system, to detect whether the CAN communication interface of the fire extinguishing and explosion suppression control box is normal, a CAN instruction can be sent to the CAN communication interface through the CAN communication transceiver module. If the CAN frame information returned by the CAN communication interface can be received, it means that the CAN communication interface is normal, otherwise it means that the CAN communication interface has a fault and needs to be repaired; after the repair, ensure that the CAN communication interface is normal, and then use the detection system of the present application to detect other parts of the fire extinguishing and explosion suppression control box.

[0064] Specifically, the human-computer interaction module can provide a human-computer interaction interface, a command operation interface and a fault display interface for the user. The user can selectively detect each part of the fire extinguishing and explosion suppression control box through the human-computer interaction interface.

[0065] To facilitate understanding of the working principle of the detection system, the working principle of the fire extinguishing and explosion suppression control box is introduced here first:

[0066] The fire extinguishing and explosion suppression control box receives fire alarm information through the CAN communication interface. After receiving the fire alarm information, it will send out CAN frame information through the CAN communication interface for alarm, and output voltage information through the voltage control signal output interface to control the operation of relevant fire extinguishing equipment in the area where the fire alarm is issued.

[0067] Exemplarily, if a fire alarm information is issued from the crew compartment, after the fire extinguishing and explosion suppression control box analyzes the fire alarm information, it can obtain the information that a fire has occurred in the crew compartment. Thus, the fire extinguishing and explosion suppression control box will make the following responses to the fire in the crew compartment: on the one hand, send out CAN frame information through the CAN communication interface for alarm; on the other hand, output a voltage signal through the voltage control instruction output interface, so as to control the corresponding fire extinguishing equipment in the crew compartment to respond.

[0068] Based on the above working principle of the fire extinguishing and explosion suppression control box, in this application, the user inputs a fire alarm instruction through the human-machine interaction module. The human-machine interaction module sends the fire alarm instruction to the CAN communication transceiver module. The CAN communication transceiver module generates corresponding CAN instruction information according to the fire alarm instruction, and sends the CAN instruction information to the CAN communication interface to simulate the fire alarm information received by the fire extinguishing and explosion suppression control box. After receiving the CAN instruction information, the fire extinguishing and explosion suppression control box will make the following responses: first, send out alarm information to the outside through the CAN communication interface in the form of CAN frame information; then, output a voltage signal through the voltage control instruction output interface to control the action of relevant fire extinguishing equipment.

[0069] To detect whether the fire extinguishing and explosion suppression control box can make the above responses normally, in this application, on the one hand, the CAN communication transceiver module receives the CAN frame information sent by the CAN communication interface of the control box. The CAN communication transceiver module analyzes the CAN frame information to obtain CAN parameter information, and sends the CAN parameter information to the data analysis and processing module. On the other hand, the data acquisition module collects the voltage signal output by the voltage control instruction output interface of the control box, and sends the voltage signal to the data analysis and processing module.

[0070] The data analysis and processing module analyzes and processes the CAN parameter information and the voltage information to obtain the detection result of the fire extinguishing and explosion suppression control box, and sends the detection result to the human-machine interaction module. The human-machine interaction module can be used to display the detection result of the fire extinguishing and explosion suppression control box.

[0071] Preferably, the CAN parameter information includes one or more of the following:

[0072] The internal number information of the control box;

[0073] The alarm information of the crew compartment;

[0074] The alarm information of the power compartment;

[0075] Alarm information of the bottom cabin;

[0076] Operating condition information of the crew cabin;

[0077] Operating condition information of the power cabin;

[0078] Operating condition information of the bottom cabin.

[0079] It should be noted that the alarm information of the crew cabin includes the alarm time of the fire extinguishing and explosion suppression control box for a fire in the crew cabin, the alarm information of the power cabin includes the alarm time of the fire extinguishing and explosion suppression control box for a fire in the power cabin, and the alarm information of the bottom cabin includes the alarm time of the fire extinguishing and explosion suppression control box for a fire in the bottom cabin.

[0080] After receiving the alarm time of each cabin and the sending time of the alarm command, the data analysis and processing module can calculate and determine the response time of the fire extinguishing and explosion suppression control box for a fire in each cabin. By comparing the standard response time of each cabin, it can be determined whether the response time of the fire extinguishing and explosion suppression control box to the fire signal in each cabin is normal, and the detection result of whether the response time is normal is displayed in the human-machine interaction module. It can be understood that the sending time of the alarm command can be the time when the CAN communication transceiver module sends CAN command information.

[0081] In implementation, the embodiment of the present invention sends CAN command information containing fire alarm information to the fire extinguishing and explosion suppression control box through the CAN communication transceiver module. After receiving the CAN command information, the fire extinguishing and explosion suppression control box makes a response. On the one hand, it sends CAN frame information to the CAN communication transceiver module, and on the other hand, it issues a control voltage signal for controlling the fire extinguishing equipment in each cabin. The detection system can receive the CAN frame information and the voltage signal, and then use the data analysis and processing module for analysis and processing to determine the fault point of the fire extinguishing and explosion suppression control box.

[0082] It should be noted that when a fault occurs in the CAN fire alarm information input circuit in the fire extinguishing and explosion suppression control box, no matter how many CAN fire alarm command information the detection system sends to the fire extinguishing and explosion suppression control box, the fire extinguishing and explosion suppression control box will not respond to the CAN fire alarm command information. From this, it can be determined that a fault has occurred in the CAN fire alarm information input circuit.

[0083] When the CAN fire alarm information input circuit is normal, after receiving the CAN command information, the fire extinguishing and explosion suppression control box on the one hand feeds back alarm information to the CAN communication transceiver module, and on the other hand, the fire extinguishing and explosion suppression control box sends voltage information for controlling the fire extinguishing equipment in each compartment to the data acquisition module of the detection system through the voltage control signal output interface. By comparing this voltage information with the normal standard driving index, it is possible to determine whether there is a fault in the voltage control signal output circuit for controlling the fire extinguishing equipment in each compartment in the fire extinguishing and explosion suppression control box.

[0084] Compared with the prior art, the detection system of the fire extinguishing and explosion suppression control box provided by the embodiment of the present invention can control the fire alarm state of the compartments controlled by the fire extinguishing and explosion suppression control box through the CAN communication transceiver module. By receiving the CAN frame information and voltage information sent by the fire extinguishing and explosion suppression control box, analyzing and processing the CAN frame information and voltage information, automatic detection of each fault point of the fire extinguishing and explosion suppression control box is realized.

[0085] Further, the data acquisition module includes a plurality of signal acquisition circuits, and each signal acquisition circuit is used to acquire a path of voltage information output by the fire extinguishing and explosion suppression control box.

[0086] Specifically, as Figure 2 shown, the data acquisition module includes signal acquisition circuit 1, signal acquisition circuit 2... and signal acquisition circuit N. Each signal acquisition circuit corresponds to a path of voltage information output by the fire extinguishing and explosion suppression control box. It can be understood that the voltage information is the voltage information for controlling the fire extinguishing equipment in each compartment after the fire extinguishing and explosion suppression control box alarms. Thus, the detection system can determine the comparison result between the voltage information of each path and the normal standard driving index according to the voltage information of each path. If the difference between the two is within the threshold range, it means that the voltage control signal output circuit corresponding to the voltage information of this path is normal. On the contrary, if the difference between the two exceeds the threshold range, it means that the voltage control signal output circuit corresponding to the voltage information of this path has a fault.

[0087] Preferably, the signal acquisition circuit is a voltage division acquisition circuit, and the voltage division acquisition circuit includes a pull-up resistor R1, a voltage division resistor R2, and a voltage division resistor R3;

[0088] One end of the voltage division resistor R2 is connected to one end of the pull-up resistor R1 and serves as the input end of the voltage division acquisition circuit to be connected to the voltage control signal output interface of the fire extinguishing and explosion suppression control box, and the other end of the pull-up resistor R1 is connected to the pull-up power supply;

[0089] The other end of the voltage division resistor R2 serves as the output end of the voltage division acquisition circuit and is connected to the data analysis and processing module; the other end of the voltage division resistor R2 is also connected to one end of the voltage division resistor R3, and the other end of the voltage division resistor R3 is grounded.

[0090] Specifically, as Figure 3 shown, OUT4 is the voltage signal output by the voltage control signal output interface of the fire extinguishing and explosion suppression control box. One end of R2 is connected to receive this voltage signal OUT4. The 5V port is the pull-up power supply, and the Al1 port is an input terminal of the data analysis and processing module. The other end of R2 serves as the output terminal of the voltage division acquisition circuit, and divides the received OUT4 through the voltage division resistors R2 and R3, and outputs it to the data analysis and processing module.

[0091] During implementation, the embodiment of the present invention divides the abnormal voltage information or excessive voltage information sent by the fire extinguishing and explosion suppression control box through the voltage division acquisition circuit to protect the circuit of the detection system, and can improve the safety of the detection system of the fire extinguishing and explosion suppression control box.

[0092] Furthermore, the detection system further includes a data output module;

[0093] The data output module is connected to the human-computer interaction module and the fire extinguishing and explosion suppression control box, and is used to receive the analog command sent by the human-computer interaction module, and send an analog signal or directly control the switch state of the fire extinguishing and explosion suppression control box according to the analog command to detect the fire extinguishing and explosion suppression control box.

[0094] Specifically, as Figure 4 shown, the user can send an analog command through the human-computer interaction module. After the data output module receives the analog command, it sends an analog signal or directly controls the switch state of the fire extinguishing and explosion suppression control box according to the analog command to detect the fire extinguishing and explosion suppression control box.

[0095] It should be noted that the switch state of the fire extinguishing and explosion suppression control box can be controlled by the switch on the fire extinguishing and explosion suppression control box, or can be controlled by the data output module provided by the embodiment of the present invention.

[0096] Preferably, as Figure 4 shown, the data output module includes an analog thermocouple output circuit and a thermocouple conversion module; the analog command includes an analog thermocouple command; the analog signal includes an analog thermocouple signal;

[0097] The thermocouple conversion module is connected to the human-computer interaction module, and is used to receive the analog thermocouple command sent by the human-computer interaction module, generate a first control command signal and the analog thermocouple signal according to the analog thermocouple command, and send the first control command signal and the analog thermocouple signal to the analog thermocouple output circuit;

[0098] The analog thermocouple output circuit sends the analog thermocouple signal to the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box under the control of the first control instruction signal.

[0099] It should be noted that the fire extinguishing and explosion suppression control box can receive the voltage change curve output by an external thermocouple through the thermocouple voltage signal input interface. In the embodiment of the present invention, the voltage change curve output by the thermocouple is simulated by the analog thermocouple signal, and the analog thermocouple signal is sent to the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box. By whether the fire extinguishing and explosion suppression control box responds to the analog thermocouple signal, it can be detected whether there is a fault in the thermocouple voltage signal input circuit in the fire extinguishing and explosion suppression control box.

[0100] Under normal circumstances, if the voltage change curve output by the thermocouple indicates normal temperature and no fire occurs, the fire extinguishing and explosion suppression control box makes a judgment and does not give an alarm, but continues to monitor; if the voltage change curve output by the thermocouple represents too high temperature and a fire occurs, the fire extinguishing and explosion suppression control box makes a judgment and gives an alarm. After confirming the alarm, on the one hand, it sends CAN frame information including alarm information through the CAN communication interface, and on the other hand, it outputs voltage information through the voltage control signal output interface.

[0101] Preferably, the analog thermocouple output circuit includes a first inverter, a first resistor, a first power transistor, a first diode, a first electromagnetic relay, and a current limiting resistor;

[0102] The input end of the first inverter is used to receive the first control instruction signal, and the output end is connected to one end of the first resistor. The other end of the first resistor is connected to the INPUT port of the first power transistor. The drain port of the first power transistor is connected to the positive electrode of the first diode and one end of the control coil of the first electromagnetic relay. The negative electrode of the first diode is connected to the power supply and the other end of the control coil of the first electromagnetic relay;

[0103] The static contact of the first electromagnetic relay is connected to one end of the current limiting resistor, and the other end of the current limiting resistor is used to receive the analog thermocouple signal; the moving contact of the first electromagnetic relay is connected to the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box.

[0104] Specifically, as Figure 5 shown, IO2 is the first control instruction signal, AO0 is the analog thermocouple signal, the HR1+ port is the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box, and V-24V is the power supply.

[0105] Exemplary: The input terminal 5A of the first inverter U4E is used to receive the first control instruction signal IO2, and the output terminal 5Y is used to connect to one end of the first resistor R16. The other end of the first resistor R16 is connected to the INPUT port of the first power transistor U3. The drain port of the first power transistor U3 is connected to the positive electrode of the first diode D1 and one end 2 of the control coil of the first electromagnetic relay RL1. The negative electrode of the first diode D1 is connected to the power supply and the other end of the control coil of the first electromagnetic relay RL1. The static contact 3 of the first electromagnetic relay RL1 is connected to one end of the current-limiting resistor, and the other end of the current-limiting resistor is used to receive the analog thermocouple signal. The moving contact 4 of the first electromagnetic relay is connected to the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box.

[0106] Exemplary: The first inverter U4E can be of the 74HC14 model, and the first power transistor U3 can be of the BTS3018 model.

[0107] Further, the data output module includes an analog working condition circuit and a working condition conversion module; the analog instruction includes an analog working condition instruction.

[0108] The working condition conversion module is connected to the human-machine interaction module, and is used to receive the analog working condition instruction sent by the human-machine interaction module, generate a second control instruction signal according to the analog working condition instruction, and send the second control instruction signal to the analog working condition circuit.

[0109] The analog working condition circuit is connected to the working condition switch control interface of the fire extinguishing and explosion suppression control box, and the analog working condition circuit directly controls the working condition switch state of the fire extinguishing and explosion suppression control box according to the second control instruction signal.

[0110] Specifically, as Figure 4 shown, the user can send an analog working condition instruction to the working condition conversion module through the human-machine interaction module. The working condition conversion module generates a second control instruction signal according to the analog working condition instruction. The analog working condition circuit receives the second control instruction signal and controls the working condition switch controlled by the analog working condition circuit.

[0111] It should be noted that when the circuit of the working condition switch of the fire extinguishing and explosion suppression control box is normal, when the user sends a working condition change instruction to the fire extinguishing and explosion suppression control box through the human-machine interaction module, such as changing from wartime to peacetime, or from automatic to semi-automatic, after receiving the working condition change instruction, the fire extinguishing and explosion suppression control box will send CAN frame information to the CAN communication transceiver module of the detection system through the CAN communication interface. The CAN communication transceiver module parses the CAN frame information to obtain CAN parameter information, which includes the working condition status information of the fire extinguishing and explosion suppression control box. Thus, it can be determined whether the working condition status of the fire extinguishing and explosion suppression control box has changed. If the working condition switching switch circuit of the fire extinguishing and explosion suppression control box is abnormal, the working condition status of the fire extinguishing and explosion suppression control box will not change. Therefore, it is possible to judge whether the corresponding working condition switching switch circuit is normal according to the CAN parameters parsed from the received CAN frame information.

[0112] Preferably, the simulated working condition circuit includes a second inverter, a second resistor, a second power transistor, a second diode and a second electromagnetic relay;

[0113] The input end of the second inverter is used to receive the second control instruction signal, the output end is connected to one end of the second resistor, the other end of the second resistor is connected to the INPUT port of the second power transistor, the drain port of the second power transistor is connected to the positive electrode of the second diode and one end of the control coil of the second electromagnetic relay, and the negative electrode of the second diode is connected to the power supply and the other end of the control coil of the second electromagnetic relay;

[0114] The static contact of the second electromagnetic relay is grounded, and the moving contact of the second electromagnetic relay is connected to the working condition switch control interface of the fire extinguishing and explosion suppression control box.

[0115] It should be noted that the working condition switch control interface of the fire extinguishing and explosion suppression control box is connected to the working condition switching switch circuit in the fire extinguishing and explosion suppression control box. When the working condition switching switch circuit in the fire extinguishing and explosion suppression control box is normal, if the state of the working condition switch control interface of the fire extinguishing and explosion suppression control box is changed, the working condition in the fire extinguishing and explosion suppression control box will change accordingly.

[0116] Specifically, as Figure 6 shown, IO1 is the second control instruction signal, GND is the grounding terminal, KEY1 is the working condition switch control interface of the fire extinguishing and explosion suppression control box, and V-24V is the power supply.

[0117] Exemplary: The second control instruction signal IO1 is input into the input terminal 6A of the second inverter U2F, output from the output terminal 6Y, passes through the second resistor R4, and is input into the INPUT port of the second power transistor U1. The gnd port of the second power transistor U1 is grounded. The drain port of the second power transistor U1 is simultaneously connected to the positive electrode of the second diode D2 and one end of the control coil of the second electromagnetic relay RL2. The other end of the control coil of the second electromagnetic relay RL2 and the negative electrode of the second diode D2 are connected to the power supply. When the second control instruction signal IO1 is a low-level signal, it will cause the static contact and the moving contact of the second electromagnetic relay RL2 to be connected, grounding the working condition switch control interface of the fire extinguishing and explosion suppression control box, thereby changing the state of the working condition switch and enabling the working condition of the fire extinguishing and explosion suppression control box to change.

[0118] Exemplary: The second inverter U2F can be of the 74HC14 model, and the second power transistor U1 can be of the BTS3018 model.

[0119] During implementation, the user sends a simulation instruction to the data output module through the human-computer interaction module. The data output module can send a simulated thermocouple signal to the fire extinguishing and explosion suppression control box or control the working condition change of the fire extinguishing and explosion suppression control box according to the simulation instruction. Furthermore, based on the CAN frame information output by the fire extinguishing and explosion suppression control box through the CAN communication interface and the voltage information output through the voltage control signal output interface, it can be determined whether there is a fault in the thermocouple voltage signal input circuit of the fire extinguishing and explosion suppression control box and whether there is a fault in the working condition switching switch circuit of the fire extinguishing and explosion suppression control box.

[0120] Compared with the prior art, the detection system of the fire extinguishing and explosion suppression control box provided by the embodiment of the present invention passes through the data output module. The data output module includes an analog thermocouple output circuit, a thermocouple conversion module, an analog working condition circuit, and a working condition conversion module, which can realize the detection of the thermocouple voltage signal input circuit and the working condition switching switch circuit of the fire extinguishing and explosion suppression control box. At the same time, it can realize the automatic control of the working condition switch and the simulated thermocouple signal of the fire extinguishing and explosion suppression control box, improving the automation degree of the detection system of the fire extinguishing and explosion suppression control box and making it more rapid and convenient.

[0121] Furthermore, the data output module includes a plurality of the analog working condition circuits and the corresponding working condition conversion modules. Each of the analog working condition circuits and the corresponding working condition conversion modules independently controls one of the working condition switch control interfaces of the fire extinguishing and explosion suppression control box;

[0122] Among them, the working condition switch control interfaces of the fire extinguishing and explosion suppression control box include the war / peace switch interface of the crew compartment, the automatic / semi-automatic status switch interface of the power compartment, and the automatic / semi-automatic status switch interface of the bottom compartment.

[0123] It should be noted that when the fire extinguishing and explosion suppression control box monitors and alarms multiple cabins, there are multiple working condition switch control interfaces on the fire extinguishing and explosion suppression control box, and each working condition switch control interface corresponds to two working condition states of a cabin. The multiple cabins can include a crew cabin, a power cabin, and a bottom cabin. The working condition states of each cabin are different. The crew cabin includes two working condition states of wartime / peace time, the power cabin includes two working condition states of automatic / semi-automatic, and the bottom cabin includes two working condition states of automatic / semi-automatic.

[0124] It should be noted that the data output module includes multiple analog working condition circuits and corresponding working condition conversion modules. Each analog working condition circuit and the corresponding working condition conversion module independently control a working condition switch control interface of the fire extinguishing and explosion suppression control box, which can realize the control of each working condition switch of the fire extinguishing and explosion suppression control box, and the control between each switch is independent of each other, which can reduce the risk of mutual interference and improve the authenticity of detection.

[0125] Compared with the prior art, the detection system of the fire extinguishing and explosion suppression control box provided by the embodiment of the present invention reduces the risk of mutual interference and improves the authenticity of detection by independently controlling a working condition switch control interface of the fire extinguishing and explosion suppression control box through each analog working condition circuit and the corresponding working condition conversion module.

[0126] Those skilled in the art can understand that all or part of the processes of implementing the above embodiment methods can be completed by instructing relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. Among them, the computer-readable storage medium is a magnetic disk, an optical disk, a read-only memory, or a random access memory, etc.

[0127] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A detection system for a fire extinguishing and explosion suppression control box, characterized in that, The detection system includes a CAN communication transceiver module, a data acquisition module, a data analysis and processing module, and a human-machine interaction module; The human-machine interaction module is connected to the CAN communication transceiver module and sends a fire alarm instruction to the CAN communication transceiver module; The CAN communication transceiver module is used to generate corresponding CAN instruction information according to the fire alarm instruction, send the CAN instruction information to the CAN communication interface of the fire extinguishing and explosion suppression control box, receive the CAN frame information sent by the fire extinguishing and explosion suppression control box through the CAN communication transceiver module, parse the CAN frame information to obtain CAN parameter information, and send the CAN parameter information to the data analysis and processing module; The data acquisition module is connected to the voltage control signal output interface of the fire extinguishing and explosion suppression control box, and is used to collect the voltage information output by the fire extinguishing and explosion suppression control box and send the voltage information to the data analysis and processing module; The data analysis and processing module analyzes and processes the CAN parameter information and the voltage information to obtain the detection result of the fire extinguishing and explosion suppression control box, and sends the detection result to the human-machine interaction module; The human-machine interaction module is also used to display the detection result of the fire extinguishing and explosion suppression control box; The detection system further includes a data output module; The data output module is connected to the human-machine interaction module and the fire extinguishing and explosion suppression control box, and is used to receive the analog instruction sent by the human-machine interaction module, and send an analog signal to the fire extinguishing and explosion suppression control box or directly control the switch state of the fire extinguishing and explosion suppression control box according to the analog instruction to detect the fire extinguishing and explosion suppression control box; The data output module includes an analog working condition circuit and a working condition conversion module; the analog instruction includes an analog working condition instruction; The working condition conversion module is connected to the human-machine interaction module, and is used to receive the analog working condition instruction sent by the human-machine interaction module, generate a second control instruction signal according to the analog working condition instruction, and send the second control instruction signal to the analog working condition circuit; The analog working condition circuit is connected to the working condition switch control interface of the fire extinguishing and explosion suppression control box, and the analog working condition circuit directly controls the working condition switch state of the fire extinguishing and explosion suppression control box according to the second control instruction signal; The following steps are used to detect whether the working condition switching switch circuits corresponding to the respective compartments monitored by the fire extinguishing and explosion suppression control box are normal: The working condition state of the working condition switch control interfaces corresponding to the respective compartments is changed through the analog working condition circuit of the detection system; The CAN communication transceiver module receives the CAN frame information sent by the CAN communication interface, and parses the CAN frame information to obtain the CAN parameter information; The data analysis and processing module compares the working condition state information corresponding to each compartment in the CAN parameter information with the working condition state information corresponding to each compartment before the working condition state change. If the two working condition state information corresponding to a certain compartment are consistent, information on the failure of the working condition switching switch circuit corresponding to that compartment is output.

2. The detection system of the fire extinguishing and explosion suppression control box according to claim 1, wherein The CAN parameter information includes one or more of the following: Internal number information of the control box; Alarm information of the crew compartment; Alarm information of the power compartment; Alarm information of the bottom compartment; Working condition status information of the crew cabin; Working condition status information of the power cabin; Working condition status information of the bottom cabin.

3. The detection system of the fire extinguishing and explosion suppression control box according to claim 1, characterized in that The data acquisition module includes a plurality of signal acquisition circuits, and each of the signal acquisition circuits is used to acquire a path of voltage information output by the fire extinguishing and explosion suppression control box.

4. The detection system of the fire extinguishing and explosion suppression control box according to claim 3, characterized in that The signal acquisition circuit is a voltage division acquisition circuit, and the voltage division acquisition circuit includes a pull-up resistor R1, a voltage division resistor R2, and a voltage division resistor R3; One end of the voltage division resistor R2 is connected to one end of the pull-up resistor R1 and serves as the input end of the voltage division acquisition circuit to be connected to the voltage control signal output interface of the fire extinguishing and explosion suppression control box, and the other end of the pull-up resistor R1 is connected to the pull-up power supply; The other end of the voltage division resistor R2 serves as the output end of the voltage division acquisition circuit and is connected to the data analysis and processing module; the other end of the voltage division resistor R2 is also connected to one end of the voltage division resistor R3, and the other end of the voltage division resistor R3 is grounded.

5. The detection system of the fire extinguishing and explosion suppression control box according to claim 1, characterized in that, The data output module includes an analog thermocouple output circuit and a thermocouple conversion module; the analog command includes an analog thermocouple command; the analog signal includes an analog thermocouple signal; The thermocouple conversion module is connected to the human-machine interaction module, and is used to receive the analog thermocouple command sent by the human-machine interaction module, generate a first control command signal and the analog thermocouple signal according to the analog thermocouple command, and send the first control command signal and the analog thermocouple signal to the analog thermocouple output circuit; The analog thermocouple output circuit sends the analog thermocouple signal to the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box under the control of the first control command signal.

6. The detection system of the fire extinguishing and explosion suppression control box according to claim 5, wherein The analog thermocouple output circuit includes a first inverter, a first resistor, a first power tube, a first diode, a first electromagnetic relay, and a current limiting resistor; The input end of the first inverter is used to receive the first control command signal, the output end is connected to one end of the first resistor, the other end of the first resistor is connected to the INPUT port of the first power tube, the drain port of the first power tube is connected to the positive pole of the first diode and one end of the control coil of the first electromagnetic relay, and the negative pole of the first diode is connected to the power supply and the other end of the control coil of the first electromagnetic relay; The static contact of the first electromagnetic relay is connected to one end of the current limiting resistor, and the other end of the current limiting resistor is used to receive the analog thermocouple signal; the moving contact of the first electromagnetic relay is connected to the thermocouple voltage signal input interface of the fire extinguishing and explosion suppression control box.

7. The detection system of the fire extinguishing and explosion suppression control box according to claim 1, wherein The analog working condition circuit includes a second inverter, a second resistor, a second power tube, a second diode, and a second electromagnetic relay; The input end of the second inverter is used to receive the second control command signal, the output end is connected to one end of the second resistor, the other end of the second resistor is connected to the INPUT port of the second power tube, the drain port of the second power tube is connected to the positive pole of the second diode and one end of the control coil of the second electromagnetic relay, and the negative pole of the second diode is connected to the power supply and the other end of the control coil of the second electromagnetic relay; The static contact of the second electromagnetic relay is grounded, and the moving contact of the second electromagnetic relay is connected to the working condition switch control interface of the fire extinguishing and explosion suppression control box.

8. The detection system of the fire extinguishing and explosion suppression control box according to claim 7, characterized in that, The data output module includes a plurality of the analog working condition circuits and the corresponding working condition conversion modules, and each of the analog working condition circuits and the corresponding working condition conversion modules independently controls one of the working condition switch control interfaces of the fire extinguishing and explosion suppression control box; Among them, the working condition switch control interfaces of the fire extinguishing and explosion suppression control box include the wartime / peace time switch interface of the crew compartment, the automatic / semi-automatic status switch interface of the power compartment, and the automatic / semi-automatic status switch interface of the bottom compartment.

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