CN117504215A - Portable online fire-extinguishing explosion-suppression detection system, device and detection method thereof - Google Patents
Portable online fire-extinguishing explosion-suppression detection system, device and detection method thereof Download PDFInfo
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- CN117504215A CN117504215A CN202311296095.1A CN202311296095A CN117504215A CN 117504215 A CN117504215 A CN 117504215A CN 202311296095 A CN202311296095 A CN 202311296095A CN 117504215 A CN117504215 A CN 117504215A
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- 238000001514 detection method Methods 0.000 title claims abstract description 98
- 238000004891 communication Methods 0.000 claims abstract description 21
- 238000007405 data analysis Methods 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000004880 explosion Methods 0.000 claims description 52
- 230000001629 suppression Effects 0.000 claims description 51
- 238000012360 testing method Methods 0.000 claims description 17
- 238000004458 analytical method Methods 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 7
- 230000003993 interaction Effects 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000011897 real-time detection Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Alarm Systems (AREA)
Abstract
The invention provides a portable online fire-extinguishing explosion-suppression detection system, a device and a detection method thereof, comprising the following steps: the device comprises a display assembly, a CAN communication module, a data acquisition multifunctional module, a data analysis and processing module and a detection cable; acquiring state information of the fire-extinguishing explosion-suppressing system through the CAN communication module, acquiring related data information of the fire-extinguishing explosion-suppressing system through the data acquisition multifunctional module, and performing data analysis and processing according to the state information and the related data information by the data analysis and processing module; displaying an interface through a display component; the detection cable is used for connecting the fire-extinguishing explosion-suppressing system and the fire-extinguishing explosion-suppressing detection system to realize on-line detection. The invention judges the current working state of the fire-extinguishing explosion-suppressing system on line on the basis of not dismantling the fire-extinguishing explosion-suppressing device, and gives out a real-time detection result and a judging basis of faults. The accuracy of fault type and degree judgment and the reliability of state monitoring are effectively improved, and the on-line detection and maintenance of the fire-extinguishing explosion-suppression system are realized.
Description
Technical Field
The invention relates to the technical field of vehicle fire extinguishment and explosion suppression, in particular to a portable online fire extinguishment and explosion suppression detection system, device and detection method thereof.
Background
When the fire extinguishing and explosion suppression system breaks down, the simulated fire extinguishing bottle is generally connected into a fire extinguishing bottle cable, fault detection is carried out by manufacturing different working conditions, fault parts are removed for detection and maintenance, and the fire extinguishing and explosion suppression system is reinstalled in a vehicle after maintenance.
The following disadvantages exist in this process: 1. detecting a fault may miss some hidden hazards; 2. the fault elimination method at least needs two persons, one person is used for operating the fire-extinguishing explosion-suppressing system, and the other person is used for observing and simulating the spraying condition of the fire-extinguishing bottle; 3. because the condition on the vehicle is complex, the dismantling and installing processes are complex and troublesome, and the time and the labor are consumed.
Therefore, the prior art lacks a portable online fire-extinguishing explosion-suppressing detection system, a device and a detection method thereof, wherein the portable online fire-extinguishing explosion-suppressing detection system can detect the fire-extinguishing explosion-suppressing system on line without dismantling the fire-extinguishing explosion-suppressing system.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a portable online fire-extinguishing explosion-suppression detection system, a portable online fire-extinguishing explosion-suppression detection device and a portable online fire-extinguishing explosion-suppression detection method.
The invention provides a portable online fire-extinguishing explosion-suppression detection system, which comprises: the device comprises a display assembly, a CAN communication module, a data acquisition multifunctional module, a data analysis and processing module and a detection cable;
acquiring state information of a fire-extinguishing and explosion-suppressing system through the CAN communication module, acquiring relevant data information of the fire-extinguishing and explosion-suppressing system through the data acquisition multifunctional module, and performing data analysis and processing by the data analysis and processing module according to the state information and the relevant data information of the fire-extinguishing and explosion-suppressing system; displaying an interface through the display component;
the detection cable is used for connecting the fire-extinguishing explosion-suppression system and the fire-extinguishing explosion-suppression detection system to realize on-line detection.
Preferably, the display component provides a man-machine interaction interface and a command operation interface for a user and further comprises a test display unit connected with the fire extinguishing and explosion suppression system;
the test display unit is used for displaying the working condition state, fault information, test progress and test result of the current fire-extinguishing explosion-suppression system.
Preferably, the CAN communication module is responsible for sending CAN instructions and data, receiving and analyzing CAN frames, and carrying out data interaction with the fire-extinguishing explosion-suppression system through a CAN bus to acquire state information of the fire-extinguishing explosion-suppression system;
the state information comprises information after CAN frame analysis is carried out through an analysis module according to the CAN frame sent by the fire extinguishing and explosion suppression system.
Preferably, the information after the CAN frame analysis comprises the current working condition state of the fire extinguishing and explosion suppression system, fire alarm information of each cabin, the service condition of the fire extinguishing bottle, the internal number of an optical detector of the fire extinguishing and explosion suppression system and the on-line time length.
Preferably, the data acquisition multifunctional module is used for carrying out analog signal data acquisition, analog signal output control and digital signal output control on the fire extinguishing and explosion suppression system.
Preferably, the analog signal data acquisition comprises the acquisition of output voltage of an electric explosion tube of the spray bottle when a fire alarm of the fire extinguishing explosion suppression system is given;
the analog signal output control comprises the steps of integrating a fire extinguishing bottle circuit, and controlling the empty and full bottles of the fire extinguishing and explosion suppression system fire extinguishing bottle by simulating a pressure switch of the fire extinguishing and explosion suppression system fire extinguishing bottle and detecting the change of the voltage of a drive electric explosion tube of a tested system;
the digital signal output control comprises the steps of integrating a thermocouple circuit and simulating a voltage change curve of the thermocouple after ignition so as to verify whether the thermocouple circuit part is normal in the fire extinguishing and explosion suppression system.
Preferably, the data analysis and processing module is used for storing and processing various signals analyzed or collected by the CAN communication module and the data collection multifunctional module, and whether the working state of the fire extinguishing and explosion suppression system is normal is obtained through analysis.
The invention provides a detection method of a portable online fire-extinguishing explosion-suppression system, which comprises the following steps:
step S1: initializing system parameters to perform bus communication detection, judging whether each current component is online, and if yes, executing step S2; if not, displaying the fault and giving a repair suggestion;
step S2: performing driving function detection, judging whether a fault code exists at present, if so, performing fault data analysis and positioning, and displaying a fault detection result; if not, the fault detection result is directly displayed.
The invention provides a portable online fire-extinguishing explosion-suppression system detection device, which comprises the portable online fire-extinguishing explosion-suppression detection system.
Preferably, the portable on-line fire-extinguishing explosion-suppression system further comprises a fire-extinguishing explosion-suppression system which is in bidirectional signal connection with the portable on-line fire-extinguishing explosion-suppression detection system through a detection cable.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has reasonable structure, simple user interface and convenient operation, and can enable the user to know the test state of each test item.
2. The invention CAN carry out online communication with the tested fire-extinguishing explosion-suppressing system through the CAN bus, CAN monitor the state of the fire-extinguishing explosion-suppressing system by the real vehicle under the condition of not dismantling the system, and gives out a real-time detection result and a judgment basis of faults. The accuracy of fault type and degree judgment and the reliability of state monitoring can be effectively improved, so that the on-line detection and maintenance of the fire-extinguishing explosion-suppression system are realized.
3. The invention integrates the fire extinguishing bottle and the thermocouple circuit, can replace manual work to drive and detect the fire extinguishing and explosion suppressing system, has high degree of automation, greatly shortens the troubleshooting time, avoids repeated testing, and improves the testing precision and efficiency.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a portable on-line fire-extinguishing explosion-suppression detection system.
Fig. 2 is a schematic diagram of cable connection of the portable on-line fire-extinguishing explosion-suppression detection system of the invention.
Fig. 3 is a schematic diagram of an output control circuit of an electric explosion tube of a simulated fire bottle of the portable online fire extinguishing explosion suppression detection system.
Fig. 4 is a schematic diagram of an output control circuit of a pressure switch of a simulated fire bottle of the portable online fire extinguishing and explosion suppression detection system.
Fig. 5 is a schematic flow chart of a detection method of the portable online fire-extinguishing explosion-suppression detection system.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
According to the invention, a portable online fire-extinguishing explosion-suppression detection system is provided, as shown in fig. 1, and comprises: the system comprises a display assembly, a CAN communication module, a data acquisition multifunctional module, a data analysis and processing module and a detection cable. Acquiring state information of the fire-extinguishing explosion-suppressing system through the CAN communication module, acquiring related data information of the fire-extinguishing explosion-suppressing system through the data acquisition multifunctional module, and performing data analysis and processing through the data analysis and processing module according to the state information of the fire-extinguishing explosion-suppressing system and the related data information; and displaying the interface through the display component. The detection cable is used for connecting the fire-extinguishing explosion-suppressing system and the fire-extinguishing explosion-suppressing detection system, and the fire-extinguishing explosion-suppressing system and the fire-extinguishing explosion-suppressing detection system are connected through the adapter under the condition that the fire-extinguishing explosion-suppressing system is not dismantled, so that the on-line detection is realized.
The display component provides a man-machine interaction interface and a command operation interface for a user and further comprises a test display unit connected with the fire-extinguishing and explosion-suppressing system. The test display unit is used for displaying the working condition state, fault information, test progress and test result of the current fire-extinguishing explosion-suppression system.
The CAN communication module is responsible for sending CAN instructions and data, receiving and analyzing CAN frames, and carrying out data interaction with the fire-extinguishing and explosion-suppressing system through a CAN bus to acquire state information of the fire-extinguishing and explosion-suppressing system. The state information comprises information after CAN frame analysis is carried out through an analysis module according to the CAN frame sent by the fire extinguishing and explosion suppression system. The information analyzed by the CAN frame comprises the current working condition state of the fire extinguishing and explosion suppression system, fire information of each cabin, the service condition of the fire extinguishing bottle, the internal number of an optical detector of the fire extinguishing and explosion suppression system and the on-line time length.
The data acquisition multifunctional module is used for carrying out analog signal data acquisition, analog signal output control and digital signal output control on the fire extinguishing and explosion suppression system. The analog signal data acquisition comprises the step of acquiring the output voltage of an electric explosion tube of the spray bottle when the fire extinguishing explosion suppression system is in a fire alarm state. The analog signal output control comprises the step of integrating a fire-extinguishing bottle circuit, and the step of controlling the empty and full bottles of the fire-extinguishing and explosion-suppressing system fire-extinguishing bottle by simulating the pressure switch of the fire-extinguishing and explosion-suppressing system fire-extinguishing bottle and detecting the change of the voltage of the electric explosion tube driven by the tested system. The digital signal output control comprises the steps of integrating a thermocouple circuit and simulating a voltage change curve of the thermocouple after ignition so as to verify whether the thermocouple circuit part is normal in the fire extinguishing and explosion suppression system.
The data analysis and processing module is used for storing and processing various signals analyzed or collected by the CAN communication module and the data collection multifunctional module, and whether the working state of the fire extinguishing and explosion suppression system is normal is obtained through analysis. That is, each path of output voltage of the fire-extinguishing explosion-suppressing system is collected in real time for storage processing, whether a certain index of the fire-extinguishing explosion-suppressing system is met or not is obtained through data analysis, which module of the fire-extinguishing explosion-suppressing system fails or not is determined according to an evaluation result of the index, whether maintenance is needed or not is determined, and meanwhile the processing time of the fire-extinguishing explosion-suppressing system to fire alarms is analyzed.
Further, the present invention is specifically described below with reference to fig. 2 to 3:
fig. 2 is a cable connection diagram of the detection system during online detection: connecting a real vehicle CAN bus cable, a CAN bus interface of a fire extinguishing and explosion suppression system and a CAN communication module of a detection system through a cable; the real vehicle fire extinguishing bottle cable, the fire wire cable, the fire extinguishing explosion suppression system thermocouple interface and the data acquisition multifunctional module of the detection system are connected through the cable, and the real vehicle power supply is used for supplying power to the fire extinguishing explosion suppression system, so that the purposes of no disassembly of components and online detection are achieved.
Fig. 3 is a circuit diagram of an output control circuit of an electric explosion tube of a simulated fire extinguishing bottle: the default output logic level of the data acquisition multifunctional module is high, the output is low after the program is started, the output is high after passing through a 74HC14 inverter, the output is input to an intelligent single-channel low-side power switch BTS3018 after passing through a current limiting resistor, at the moment, after the channel is opened, the 3-pin VBB outputs VCC-PW working voltage to YB1, and the output AI7 voltage to the data acquisition multifunctional module after the partial pressure of RF1 and RG 1.
FIG. 4 is a schematic diagram of a simulated fire bottle pressure switch output control circuit; because the default output logic level of the data acquisition multifunctional module is high level, the output is low level after the program is started, the output is high level after passing through the 74HC14 inverter, the output is input into the intelligent single-channel low-side power switch BTS3018 after passing through the current limiting resistor, and after the channel is opened at the moment, the 3-foot VBB outputs VCC-PW working voltage to YF1 so as to realize the opening and closing functions of the pressure switch.
The portable online fire-extinguishing explosion-suppressing detection system provided by the invention can judge the current working state of the fire-extinguishing explosion-suppressing system on the basis of not dismantling the fire-extinguishing explosion-suppressing device on line, and provide a real-time detection result and a judgment basis of faults. The invention replaces the time and labor consumption of multi-person detection in the prior art, can effectively improve the accuracy of fault type and degree judgment and the reliability of state monitoring, has friendly interface and simple operation, improves the detection efficiency of a detected system, and enables the detection of a fire-extinguishing explosion-suppression system to run smoothly, thereby realizing the on-line detection and maintenance of the fire-extinguishing explosion-suppression system.
According to the detection method of the portable online fire-extinguishing explosion-suppression system, as shown in fig. 5, a user connects the fire-extinguishing explosion-suppression system with the fire-extinguishing explosion-suppression system detection system through a detection cable. The user may choose to detect manually or automatically. And detecting according to the testing means selected by the user, wherein the manual mode can carry out single-item detection, the automatic mode directly carries out all item detection of the fire extinguishing and explosion suppression system and gives out a detection result, and if a fault exists, a fault judgment basis is also given out. After power-on initialization, bus communication detection is carried out, whether all components of the fire-extinguishing explosion-suppression system are on-line or not and whether the components are on-line are judged, then driving function detection of the system is carried out, whether fault codes exist is analyzed through a CAN bus, and if the fault codes exist, the analysis and the positioning are carried out, and then the result is displayed on a human-computer interface. The method specifically comprises the following substeps:
step S1: initializing system parameters to perform bus communication detection, judging whether each current component is online, and if yes, executing step S2; if not, the fault is displayed and repair comments are given.
Step S2: performing driving function detection, judging whether a fault code exists at present, if so, performing fault data analysis and positioning, and displaying a fault detection result; if not, the fault detection result is directly displayed.
The invention provides a portable online fire-extinguishing explosion-suppression system detection device, which comprises a portable online fire-extinguishing explosion-suppression detection system. The fire-extinguishing explosion-suppressing system is connected with the portable on-line fire-extinguishing explosion-suppressing detection system through a detection cable in a bidirectional signal manner.
According to the invention, the detection system of the fire-extinguishing explosion-suppressing system is connected with the fire-extinguishing explosion-suppressing system through the detection cable, and a simulated fire signal CAN be received or sent through the CAN communication module, or a simulated signal of the data acquisition multifunctional module outputs a voltage change curve of the simulated thermocouple after ignition. The tested system receives the fire alarm signal and then sends out a corresponding fire bottle driving signal, and after the data acquisition multifunctional module acquires the electric explosion tube driving signal of the tested system, the data acquisition multifunctional module performs data analysis and processing by combining with the parameter information of the CAN, the detection result is displayed on a user interface, and a user directly judges the state of the tested system through interface information.
Those skilled in the art will appreciate that the invention provides a system and its individual devices, modules, units, etc. that can be implemented entirely by logic programming of method steps, in addition to being implemented as pure computer readable program code, in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers, etc. Therefore, the system and various devices, modules and units thereof provided by the invention can be regarded as a hardware component, and the devices, modules and units for realizing various functions included in the system can also be regarded as structures in the hardware component; means, modules, and units for implementing the various functions may also be considered as either software modules for implementing the methods or structures within hardware components.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. A portable online fire suppression and explosion suppression detection system, comprising: the device comprises a display assembly, a CAN communication module, a data acquisition multifunctional module, a data analysis and processing module and a detection cable;
acquiring state information of a fire-extinguishing and explosion-suppressing system through the CAN communication module, acquiring relevant data information of the fire-extinguishing and explosion-suppressing system through the data acquisition multifunctional module, and performing data analysis and processing by the data analysis and processing module according to the state information and the relevant data information of the fire-extinguishing and explosion-suppressing system; displaying an interface through the display component;
the detection cable is used for connecting the fire-extinguishing explosion-suppression system and the fire-extinguishing explosion-suppression detection system to realize on-line detection.
2. The portable online fire suppression and explosion suppression detection system according to claim 1, wherein the display assembly provides a human-computer interaction interface and a command operation interface for a user, and further comprises a test display unit connected with the fire suppression and explosion suppression system;
the test display unit is used for displaying the working condition state, fault information, test progress and test result of the current fire-extinguishing explosion-suppression system.
3. The portable online fire-extinguishing explosion-suppressing detection system according to claim 1, wherein the CAN communication module is responsible for sending CAN instructions and data, receiving and analyzing CAN frames, and performing data interaction with the fire-extinguishing explosion-suppressing system through a CAN bus to acquire state information of the fire-extinguishing explosion-suppressing system;
the state information comprises information after CAN frame analysis is carried out through an analysis module according to the CAN frame sent by the fire extinguishing and explosion suppression system.
4. The portable online fire-extinguishing explosion-suppressing detection system according to claim 3, wherein the information analyzed by the CAN frame comprises the current working condition state of the fire-extinguishing explosion-suppressing system, fire information of each cabin, the use condition of a fire-extinguishing bottle, the internal number of an optical detector of the fire-extinguishing explosion-suppressing system and the online time length.
5. The portable on-line fire and explosion suppression detection system according to claim 1, wherein the data acquisition multifunctional module is used for carrying out analog signal data acquisition, analog signal output control and digital signal output control on the fire and explosion suppression system.
6. The portable on-line fire suppression and explosion suppression detection system according to claim 5, wherein the analog signal data acquisition comprises acquisition of output voltage of an electric explosion tube of the spray bottle when a fire of the fire suppression and explosion suppression system is detected;
the analog signal output control comprises the steps of integrating a fire extinguishing bottle circuit, and controlling the empty and full bottles of the fire extinguishing and explosion suppression system fire extinguishing bottle by simulating a pressure switch of the fire extinguishing and explosion suppression system fire extinguishing bottle and detecting the change of the voltage of a drive electric explosion tube of a tested system;
the digital signal output control comprises the steps of integrating a thermocouple circuit and simulating a voltage change curve of the thermocouple after ignition so as to verify whether the thermocouple circuit part is normal in the fire extinguishing and explosion suppression system.
7. The portable online fire-extinguishing explosion-suppression detection system according to claim 1, wherein the data analysis and processing module is used for storing various signals analyzed or collected by the CAN communication module and the data collection multifunctional module, and whether the working state of the fire-extinguishing explosion-suppression system is normal is obtained through analysis.
8. A detection method of a portable online fire-extinguishing explosion-suppression system is characterized by comprising the following steps:
step S1: initializing system parameters to perform bus communication detection, judging whether each current component is online, and if yes, executing step S2; if not, displaying the fault and giving a repair suggestion;
step S2: performing driving function detection, judging whether a fault code exists at present, if so, performing fault data analysis and positioning, and displaying a fault detection result; if not, the fault detection result is directly displayed.
9. A portable on-line fire-extinguishing explosion-suppression system detection device, characterized by comprising the portable on-line fire-extinguishing explosion-suppression detection system according to any one of claims 1 to 6.
10. The portable on-line fire suppression and explosion suppression system detection device according to claim 9, further comprising a fire suppression and explosion suppression system, wherein the fire suppression and explosion suppression system is in bidirectional signal connection with the portable on-line fire suppression and explosion suppression detection system through a detection cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311296095.1A CN117504215A (en) | 2023-10-08 | 2023-10-08 | Portable online fire-extinguishing explosion-suppression detection system, device and detection method thereof |
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| CN202311296095.1A CN117504215A (en) | 2023-10-08 | 2023-10-08 | Portable online fire-extinguishing explosion-suppression detection system, device and detection method thereof |
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| CN117504215A true CN117504215A (en) | 2024-02-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117942523A (en) * | 2024-03-22 | 2024-04-30 | 沈阳顺义科技股份有限公司 | Fire extinguishing bottle simulation and detection device |
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2023
- 2023-10-08 CN CN202311296095.1A patent/CN117504215A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117942523A (en) * | 2024-03-22 | 2024-04-30 | 沈阳顺义科技股份有限公司 | Fire extinguishing bottle simulation and detection device |
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