CN111462440A - Fire monitoring system and fire monitoring method - Google Patents
Fire monitoring system and fire monitoring method Download PDFInfo
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- CN111462440A CN111462440A CN202010171545.4A CN202010171545A CN111462440A CN 111462440 A CN111462440 A CN 111462440A CN 202010171545 A CN202010171545 A CN 202010171545A CN 111462440 A CN111462440 A CN 111462440A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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Abstract
The embodiment of the invention provides a fire monitoring system and a fire monitoring method, which are applied to a train and comprise the following steps: the fire detection device comprises a fire information acquisition module, a camera, a fire position detection module, a control module and a display module; the fire information acquisition module is used for acquiring fire information and sending a fire alarm signal to the fire position detection module according to the acquired fire information; the fire alarm signal comprises identification information of a fire information acquisition module; the fire position detection module is used for determining a fire alarm position according to the received fire alarm signal and sending the fire alarm position to the control module; the control module is used for selecting a camera according to the fire alarm position and pushing real-time video information shot by the selected camera to the display module; the display module is used for displaying real-time video information of the fire alarm position.
Description
Technical Field
The invention relates to the technical field of fire fighting, in particular to a fire monitoring system and a fire monitoring method.
Background
As a transport tool moving at high speed, the train has the characteristic of airtight space, so that extremely high requirements are provided for fire monitoring.
The fire monitoring of the existing train mainly adopts a smoke-sensitive probe to detect indexes such as smoke concentration, environmental temperature and the like of positions such as a passenger room, a power distribution cabinet and the like in the train for monitoring, and once the related indexes exceed a threshold value, an alarm is triggered. After receiving the fire alarm information, the driver and the passengers limit the speed of the train, then go to the fault location to confirm whether the fire is true or false, and take further measures according to the confirmation condition.
The fire monitoring mode in the prior art has the following problems:
(1) if the fire is a real fire, the process of detection and confirmation can cause delay of fire extinguishing implementation, so that the fire is expanded, and personal and property safety of drivers and passengers on the train is threatened;
(2) if the train is a false fire, in the process of finding and confirming the fire, the train needs to adopt related operations such as speed-limiting operation and the like, so that the normal operation of the train is influenced, and meanwhile, passengers are easy to panic.
Disclosure of Invention
The embodiment of the invention provides a fire monitoring system and a fire monitoring method, which are used for solving the defects that the fire monitoring mode in the prior art cannot rapidly judge the truth of the fire, so that the implementation of fire extinguishing measures is delayed or the normal operation of a train is influenced, and rapidly judging the truth of the fire.
An embodiment of a first aspect of the present invention provides a fire monitoring system, which is applied to a train, and includes: the fire detection system comprises a fire information acquisition module 1, a camera 2, a fire position detection module 3, a control module 4 and a display module 5; wherein the content of the first and second substances,
the fire information acquisition modules 1 are multiple, and the fire information acquisition modules 1 are distributed at multiple positions of the train; the number of the cameras 2 is multiple, and the cameras 2 are distributed at multiple positions of the train;
the fire information acquisition module 1 is used for acquiring fire information and sending a fire alarm signal to the fire position detection module 3 according to the acquired fire information;
the fire position detection module 3 is used for detecting a fire alarm position according to the received fire alarm signal and sending the fire alarm position to the control module 4;
the control module 4 is used for selecting the camera 2 according to the fire alarm position and sending real-time video information shot by the selected camera 2 to the display module 5;
the display module 5 is used for displaying real-time video information of the fire alarm position.
In the above technical solution, the fire information collecting module 1 includes a temperature sensing cable 11 and a smoke sensing probe 12;
the temperature sensing cable 11 is electrically connected with the electrical equipment, and is used for detecting the temperature change of the electrical equipment and sending out a fire alarm signal after the temperature change exceeds an alarm threshold value;
the smoke detector 12 is used for detecting smoke concentration or environment temperature in the train, and sends out a fire alarm signal when the smoke concentration or the environment temperature reaches an alarm value of the smoke detector.
In the above technical solution, the fire position detection module 3 is further configured to generate detection mode information for triggering a fire according to the received fire alarm signal, and send the detection mode information for triggering a fire to the control module 4;
correspondingly, the control module 4 is further configured to send the detection mode information of the triggered fire to the display module 5;
the display module 5 is further configured to display the detection mode information of the triggered fire.
In the above technical scheme, the camera 2 is a camera with an adjustable angle.
In the above technical solution, the display module 5 displays the real-time video information of the fire alarm position in a highlighted manner.
An embodiment of a second aspect of the present invention provides a fire monitoring method, which is implemented based on the fire monitoring system described in the embodiment of the first aspect, and includes:
the fire information acquisition module 1 acquires fire information, generates a fire alarm signal according to the fire information and sends the fire alarm signal to the fire position detection module 3;
the fire position detection module 3 detects a fire alarm position according to the fire alarm signal and sends the fire alarm position to the control module 4;
the control module 4 is used for moving the camera 2 at the fire alarm position according to the fire alarm position, receiving the real-time video information at the fire alarm position shot by the camera 2 and sending the real-time video information at the fire alarm position to the display module 5;
and the display module 5 displays the real-time video information at the fire alarm position.
In the above technical solution, further comprising:
the fire position detection module 3 generates detection mode information for triggering fire according to the fire alarm signal and sends the detection mode information to the control module 4;
the control module 4 sends the detection mode information of the trigger fire to the display module 5;
and the display module 5 displays the detection mode information of the trigger fire.
In the above technical scheme, fire position detection module 3 according to fire alarm signal detects the fire alarm position and includes:
detecting the identification information of the fire information acquisition module 1 contained in the fire alarm signal;
according to the identification information of the fire information acquisition module 1, the installation position of the fire information acquisition module 1 is obtained from the corresponding relation between the pre-stored identification information of the fire information acquisition module 1 and the installation position of the fire information acquisition module 1, and the installation position is used as a fire alarm position.
In the above technical scheme, control module 4 according to the camera 2 of fire alarm position department is transferred to fire alarm position includes:
according to the fire alarm position, obtaining the identification information of the camera 2 at the fire alarm position from the corresponding relation between the pre-stored installation position of the camera 2 and the identification information of the camera 2;
and moving the camera 2 at the fire alarm position according to the identification information.
In the above technical solution, the camera 2 for activating the fire alarm position according to the identification information further includes:
and adjusting the lens angle of the camera 2 at the fire alarm position, and aligning the lens of the camera 2 at the fire alarm position.
According to the fire monitoring system and the fire monitoring method provided by the embodiment of the invention, after the fire alarm signal is acquired, the real-time video picture of the fire alarm position is shot by calling the camera near the fire alarm position, so that the truth of the fire can be rapidly judged, the implementation speed of fire extinguishing measures when the truth of the fire occurs is increased, and the adverse effect of the false fire on the normal running of a train is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a fire monitoring system according to an embodiment of the present invention;
fig. 2 is a flowchart of a fire monitoring method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic view of a fire monitoring system according to an embodiment of the present invention, and as shown in fig. 1, the fire monitoring system according to the embodiment of the present invention includes: the fire detection system comprises a fire information acquisition module 1, a camera 2, a fire position detection module 3, a control module 4 and a display module 5; wherein, fire information acquisition module 1 and fire position detection module 3 communication connection, fire position detection module 3 still with control module 4 communication connection, control module 4 still respectively with camera 2 and display module 5 communication connection.
The various components of the fire monitoring system are described further below.
The fire information acquisition module 1 is used for acquiring fire information, and once the fire information is detected, a fire alarm signal is sent to the fire position detection module 3.
The fire information acquisition modules 1 are multiple, and the fire information acquisition modules 1 are distributed at multiple positions of a train, such as in a passenger room, a toilet, a storage room, a power distribution cabinet and the like, and are used for monitoring key positions of fires easily occurring in the train.
Once the fire information is collected, the fire information collection module sends a fire alarm signal to the fire position detection module 3. The fire alarm signal comprises identification information of the fire information acquisition module, and the fire position detection module 3 is helpful to realize the positioning of the fire occurrence position.
The camera 2 is used for shooting real-time pictures of the scene. The field picture that the camera can shoot mainly depends on its mounted position, therefore in the embodiment of the invention, the camera not only needs to be mounted in positions such as guest room, storage room, etc., but also needs to be mounted in the power distribution cabinet, so as to carry out real-time detection on the corner which is difficult to observe. As a preferred implementation manner, in the embodiment of the present invention, the lens angle of the camera 2 is adjustable, so that the visual field of the camera 2 is wider, and a specified position (such as a fire alarm position) can be focused according to an instruction.
As a preferred implementation manner, in the embodiment of the present invention, the cameras in some positions may adopt infrared cameras, which is more favorable for real-time monitoring of the fire.
The fire position detection module 3 is used for detecting a fire alarm position. After the fire information acquisition module 1 is installed, the corresponding relationship between the identification information (such as the MAC address) of itself and the installation position thereof may be stored in the fire position detection module 3 in advance. After the fire position detection module 3 receives the fire alarm signal sent by the fire information acquisition module 1, the identification information of the fire information acquisition module 1 contained in the fire alarm signal is detected, and according to the identification information, the corresponding relation between the pre-stored identification information of the fire information acquisition module 1 and the installation position is searched, so that the position of the fire information acquisition module 1 sending the fire alarm signal is known. After the fire position detection module 3 detects the fire alarm position, the position information is sent to the control module 4.
The control module 4 is used for moving the camera according to the fire alarm position, receiving real-time video information shot by the camera and sending the real-time video information to the display module 5.
After receiving the fire alarm position sent by the fire position detection module 3, the control module 4 calls the cameras near the fire alarm position according to the position information, and pushes the real-time video information shot by the cameras as key information to the display module 5.
Specifically, the control module 4 stores a corresponding relationship between an identifier (such as an MAC address) of the camera and an installation position thereof in advance, and when a fire alarm position sent by the fire position detection module 3 is received, searches for the corresponding camera identifier according to the position information, and pushes real-time video information transmitted by the camera of the corresponding identifier to the display module 5 as key information.
As a preferred implementation manner, if the camera 2 is a camera with an adjustable angle, the control module 4 may further send a control command to the camera according to the fire alarm position to adjust the shooting angle of the camera, so as to obtain the best real-time monitoring effect.
The display module 5 is used for displaying images monitored in real time. In the embodiment of the present invention, the display module 5 may be implemented by using a display screen. The train is generally provided with a plurality of cameras, and real-time video information shot by the cameras can not be held by drivers and passengers if the real-time video information is displayed on a display screen at the same time. In the embodiment of the present invention, after the control module 4 pushes the real-time video information shot by the camera near the fire position to the display screen as the key information, the display screen preferentially displays the key information, for example, in an automatic pop-up manner, for example, in the center of the display screen, for example, in an enlarged image manner, for example, in the periphery of the image, in a red frame manner, the key information is highlighted and accompanied by an alarm sound.
The display module 5 is generally installed in a driver's cab and a mechanic's cab of a train. This is favorable to the driver and crew to judge the true and false of the fire condition with the help of the real-time monitoring picture that the display module 5 shows, and then decide whether to carry out operations such as speed limit operation to the train.
The fire monitoring system provided by the embodiment of the invention can be used for controlling the system by means of the train when the communication connection among the modules is realized.
After the fire monitoring system provided by the embodiment of the invention collects the fire alarm signal, the real-time video picture of the fire alarm position is shot by calling the camera near the fire alarm position, so that the truth of the fire can be rapidly judged, the implementation speed of fire extinguishing measures when the true fire occurs is improved, and the adverse effect of the false fire on the normal operation of a train is avoided.
Based on any of the above embodiments, in the embodiment of the present invention, the fire information collecting module 1 includes a temperature sensing cable 11 and a smoke sensing probe 12.
The temperature sensing cable 11 is used for monitoring the abnormal change of the current of the electrical equipment. When a fault such as a short circuit or an overcurrent occurs in the electrical equipment, the temperature sensing cable 11 can detect a temperature change of the electrical equipment, thereby emitting a fire alarm signal.
The temperature sensing cable 11 is called a recoverable temperature sensing cable, also called an analog temperature sensing cable, and is a steel wire insulated by adopting a heat-sensitive material. When the field temperature changes, the resistance between the steel wire leads changes, and when the resistance change reaches a set alarm threshold value, a detector on the temperature sensing cable 11 sends out a fire alarm signal.
The temperature sensitive cable 11 may be mounted on electrical equipment in a passenger compartment and/or a power distribution cabinet.
The smoke detector 12 is used for monitoring smoke concentration or temperature in the environment, and when the smoke concentration or temperature reaches an alarm value of the smoke detector, the smoke detector is triggered to alarm, and a fire alarm signal is sent out.
The smoke detector 12 may be installed in a location in a train where fires are likely to occur, such as a passenger compartment, a storage room, a toilet, and the like.
The temperature sensing cable 11 and the smoke sensing probe 12 have a complementary relationship in fire detection. The temperature sensing cable 11 can detect short circuit and overcurrent faults of electrical equipment in the arrangement monitoring range before naked fire or smoke occurs, and further sends out a fire alarm signal. For the parts which can not be monitored by the temperature sensing cable 11, when the smoke or air temperature reaches the alarm value of the smoke sensing probe 12 due to overheating, the smoke sensing probe 12 triggers fire alarm.
The fire monitoring system provided by the embodiment of the invention can not only detect fire through the smoke sensing probe, but also detect the fire caused by electrical faults through the temperature sensing cable, so that the fire can be detected more comprehensively.
Based on any one of the above embodiments, in the embodiment of the present invention, the fire alarm signal further includes type information of the fire information acquisition module 1;
correspondingly, the fire position detection module 3 is further configured to generate fire triggering detection mode information according to the received fire alarm signal, and send the fire triggering detection mode information to the control module 4;
the control module 4 is further configured to send the detection mode information of the triggered fire to the display module 5;
the display module 5 is further configured to display the detection mode information of the triggered fire.
After the type information of the fire information acquisition module 1 is contained in the fire alarm information, the fire alarm signal can be known according to the type information of the fire information acquisition module 1, wherein the fire alarm signal is sent by the fire information acquisition module 1 of which type, and if the fire alarm signal is sent by the temperature sensing cable 11, the fire alarm signal is sent by the smoke sensing probe 12, so that the information of a detection mode for triggering the fire is obtained. After the detection mode of the trigger fire is displayed on the display module 5, the judgment of the driver and the passengers on the true and false fire is facilitated.
The fire monitoring system provided by the embodiment of the invention can detect the detection mode of triggering the fire, and display the related information to the drivers and conductors, thereby being beneficial to the drivers and conductors to judge whether the fire is true or false.
Fig. 2 is a flowchart of a fire monitoring method according to an embodiment of the present invention, and as shown in fig. 2, the fire monitoring method according to the embodiment of the present invention includes:
and step 204, the display module 5 displays real-time video information of the camera at the fire alarm position.
According to the fire monitoring method provided by the embodiment of the invention, after the fire alarm signal is acquired, the real-time video picture of the fire alarm position is shot by calling the camera near the fire alarm position, so that the truth of the fire can be rapidly judged, the implementation speed of fire extinguishing measures when the true fire occurs is improved, and the adverse effect of the false fire on the normal operation of the train is avoided.
Based on any one of the above embodiments, in an embodiment of the present invention, the fire monitoring method further includes:
the fire position detection module 3 generates detection mode information for triggering fire according to the fire alarm signal and sends the detection mode information to the control module 4;
the control module 4 sends the detection mode information of the trigger fire to the display module 5;
and the display module 5 displays the detection mode information of the trigger fire.
The fire monitoring method provided by the embodiment of the invention can detect the detection mode of triggering the fire, and display the related information to the drivers and conductors, thereby being beneficial to the drivers and conductors to judge whether the fire is true or false.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A fire monitoring system, applied to a train, comprising: the fire detection device comprises a fire information acquisition module (1), a camera (2), a fire position detection module (3), a control module (4) and a display module (5); wherein the content of the first and second substances,
the fire information acquisition modules (1) are distributed at a plurality of positions of the train; the number of the cameras (2) is multiple, and the cameras (2) are distributed at multiple positions of the train;
the fire information acquisition module (1) is used for acquiring fire information and sending a fire alarm signal to the fire position detection module (3) according to the acquired fire information; the fire alarm signal comprises identification information of the fire information acquisition module (1);
the fire position detection module (3) is used for detecting a fire alarm position according to the received fire alarm signal and sending the fire alarm position to the control module (4);
the control module (4) is used for selecting the camera (2) according to the fire alarm position and sending real-time video information shot by the selected camera (2) to the display module (5);
and the display module (5) is used for displaying real-time video information of the fire alarm position.
2. The fire monitoring system according to claim 1, wherein the fire information acquisition module (1) comprises a temperature sensing cable (11) and a smoke sensing probe (12);
the temperature sensing cable (11) is electrically connected with the electrical equipment, is used for detecting the temperature change of the electrical equipment and sends out a fire alarm signal after the temperature change exceeds an alarm threshold value;
the smoke detector (12) is used for detecting smoke concentration or environment temperature in the train, and when the smoke concentration or the environment temperature reaches an alarm value of the smoke detector, a fire alarm signal is sent out.
3. A fire monitoring system according to claim 1 or 2, characterized in that the fire alarm signal further comprises type information of the fire information collection module (1);
correspondingly, the fire position detection module (3) is also used for generating detection mode information for triggering fire according to the received fire alarm signal and sending the detection mode information for triggering fire to the control module (4);
the control module (4) is also used for sending the detection mode information of the triggered fire to the display module (5);
the display module (5) is also used for displaying the detection mode information of the triggering fire.
4. A fire monitoring system according to claim 1 or 2, characterised in that the camera (2) is an angularly adjustable camera.
5. A fire monitoring system according to claim 1 or 2, characterized in that the display module (5) displays real-time video information of the fire alarm location in a highlighted manner.
6. A fire monitoring method implemented by the fire monitoring system according to any one of claims 1 to 5, comprising:
the fire information acquisition module (1) acquires fire information, generates a fire alarm signal according to the fire information and sends the fire alarm signal to the fire position detection module (3);
the fire position detection module (3) detects a fire alarm position according to the fire alarm signal and sends the fire alarm position to the control module (4);
the control module (4) is used for moving the camera (2) at the fire alarm position according to the fire alarm position, receiving real-time video information of the fire alarm position shot by the camera (2), and sending the real-time video information of the fire alarm position to the display module (5);
and the display module (5) displays the real-time video information at the fire alarm position.
7. The fire monitoring method of claim 6, further comprising:
the fire position detection module (3) generates detection mode information for triggering fire according to the fire alarm signal and sends the detection mode information to the control module (4);
the control module (4) sends the detection mode information of the trigger fire to the display module (5);
and the display module (5) displays the detection mode information of the trigger fire.
8. A fire monitoring method according to claim 6 or 7, characterized in that the fire position detection module (3) detecting a fire alarm position according to the fire alarm signal comprises:
detecting the identification information of the fire information acquisition module (1) contained in the fire alarm signal;
according to the identification information of the fire information acquisition module (1), the installation position of the fire information acquisition module (1) is obtained from the corresponding relation between the pre-stored identification information of the fire information acquisition module (1) and the installation position of the fire information acquisition module (1), and the installation position is used as a fire alarm position.
9. A fire monitoring method according to claim 6 or 7, wherein the control module (4) activating the camera (2) at the fire alarm position according to the fire alarm position comprises:
according to the fire alarm position, obtaining identification information of the camera (2) at the fire alarm position from a pre-stored corresponding relation between the installation position of the camera (2) and the identification information of the camera (2);
and the camera (2) at the fire alarm position is moved according to the identification information.
10. The fire monitoring method according to claim 9, wherein the activating the camera (2) at the fire alarm position according to the identification information further comprises:
and adjusting the lens angle of the camera (2) at the fire alarm position, and aligning the lens of the camera (2) to the fire alarm position.
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| CN112203052A (en) * | 2020-09-30 | 2021-01-08 | 重庆天智慧启科技有限公司 | Security protection monitoring platform |
| CN113112778A (en) * | 2021-03-05 | 2021-07-13 | 佳源科技股份有限公司 | Fire alarm system based on artificial intelligence |
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