Visual safety protection system for coal mine

Abstract

The invention provides a coal mine visual safety protection system. The coal mine visual safety protection system comprises an intelligent visual system software platform, a gas fire extinguishing alarm controller, a gas fire extinguishing device, a point-type smoke detector, a point-type temperature detector, an emergency start-stop button, an alarm and an AI double-spectrum thermal imaging intelligent temperature-measuring smoke-sensing camera. According to the system, efficient and accurate safety protection of the coal mine environment can be achieved, the possible fire alarm situation is prevented, found and handled through fire detection, AI video alarm situation analysis, linkage alarm and automatic handling in a multi-position integrated mode, and the production loss of the coal mine is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of security equipment, and in particular to a visual safety protection system for coal mines. Background Art

[0002] As an important energy production base in my country, the safe operation of coal mines is directly related to the development of the national economy and social stability. The coal mine power distribution room, as the heart of the entire mine power system, undertakes the key task of providing stable power support for all operations in the mine. A large number of high-voltage electrical equipment are installed in the distribution room. If they are improperly maintained or fail, they are prone to short circuits, overheating and other problems. From the mechanism of electrical fires, the main reason is that the fault part is heated for a long time locally, causing the insulation to further decrease, and eventually causing a short circuit in the line, leading to a fire; the other is that the arc or spark generated at the fault part instantly releases heat, causing a short circuit in the line, leading to a fire. The management of the distribution room not only serves production, but fire safety is also equally important. Some coal mine power supply systems are also equipped with some safety protection measures such as smoke detection and fire alarm, but they are only detection functions and have no ability to deal with fires after they occur. In addition, most of these systems are information islands with very limited protection capabilities. They are seriously insufficient in intelligence, visualization and interconnection, and the visualization and timeliness of the coal mine power supply system operation and management personnel are far from enough. Summary of the invention

[0003] The purpose of the present invention is to provide a visual safety protection system for coal mines, which aims to prevent, discover and deal with possible fire alarms in an all-in-one manner and reduce production losses in coal mines.

[0004] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0005] The present invention provides a coal mine visual safety protection system, comprising:

[0006] a) Intelligent visualization system software platform, used to record fire alarm information, sensor operation data and activation of fire extinguishing equipment, and conduct anti-intrusion, fire and temperature early warning analysis, and record the status of fire extinguishing equipment, exhaust system, air conditioning, etc.;

[0007] b) Gas fire extinguishing alarm controller, the front end of which can be connected to a fire detector, is used to receive the electrical signal converted by the fire detector, and output a fire command signal after processing, calculation and judgment;

[0008] c) Gas fire extinguishing device, used to release fire extinguishing agent after the fire is confirmed;

[0009] d) Point detectors, including point smoke detectors and point heat detectors, all have built-in eight-bit single-chip microcomputers with A / D conversion, which are used to convert on-site fire information into electrical signals;

[0010] e) Emergency start and stop button, used to control the start and stop of the gas fire extinguishing system;

[0011] f) Alarms, including sound and light alarms and gas release alarms, used to give an alarm when a fire occurs;

[0012] g) AI dual-spectrum thermal imaging intelligent temperature measurement and smoke sensing camera, with a built-in deep learning fireworks recognition algorithm at the front end, is used to detect regional intrusion, crossing the boundary and other functions.

[0013] Further, the gas fire extinguishing device is a cabinet-type heptafluoropropane gas fire extinguishing device, and the fire extinguishing agent contained is HFC-ea;

[0014] The point-type smoke detector and the point-type heat detector are connected in series with the gas fire extinguishing alarm controller on the alarm network loop, and are connected in parallel with the gas release alarm and the sound and light alarm on the alarm network loop respectively;

[0015] The sound and light alarm has two alarm tones, and can alarm with sound and light simultaneously, or with sound or light independently.

[0016] Furthermore, the cabinet-type heptafluoropropane gas fire extinguishing device is provided with an electromagnetically driven valve, which is connected in series with the gas fire extinguishing alarm controller through a control line, and the container for holding the fire extinguishing agent is a steel cylinder;

[0017] Two parallel sound and light alarm branches are arranged on the alarm network loop, one of which is connected in series with the emergency start and stop button and the input module;

[0018] The gas fire extinguishing alarm controller is directly connected to the communication main circuit and the power supply circuit respectively.

[0019] Furthermore, the input module and the valve of the cabinet-type heptafluoropropane gas fire extinguishing device are connected in series on the spraying feedback circuit.

[0020] Further, the point-type smoke detector is used to detect smoke and convert the smoke signal into an electrical signal;

[0021] The point-type temperature sensing detector is used to detect temperature and convert the temperature signal into an electrical signal.

[0022] Furthermore, the intelligent visualization system software platform includes a data analysis module, and a plurality of control buttons are arranged on the gas fire extinguishing alarm controller.

[0023] Beneficial effects:

[0024] The present invention provides a visual safety protection system for coal mines, including an intelligent visual system software platform, a gas fire extinguishing alarm controller, a gas fire extinguishing device, a point-type smoke detector and a point-type temperature detector, an emergency start-stop button, an alarm, and an AI dual-spectrum thermal imaging intelligent temperature measurement smoke camera. The present invention can achieve efficient and accurate safety protection for the coal mine environment, through fire detection, AI video analysis of alarms, linkage alarms, automatic disposal, multi-in-one prevention, discovery, and disposal of possible fire alarms, and reduce coal mine production losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 The accompanying drawing is a flow chart of the system operation of the present invention.

[0027] Figure 2 The accompanying drawing is an indoor installation circuit diagram of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The present invention discloses a visual safety protection system for coal mines, comprising:

[0030] a) Intelligent visualization system software platform, used to record fire alarm information, sensor operation data and activation of fire extinguishing equipment, and conduct anti-intrusion, fire and temperature early warning analysis, and record the status of fire extinguishing equipment, exhaust system, air conditioning, etc.;

[0031] b) Gas fire extinguishing alarm controller, the front end of which can be connected to a fire detector, is used to receive the electrical signal converted by the fire detector, and output a fire command signal after processing, calculation and judgment;

[0032] c) Gas fire extinguishing device, used to release fire extinguishing agent after the fire is confirmed;

[0033] d) Point detectors, including point smoke detectors and point heat detectors, all have built-in eight-bit single-chip microcomputers with A / D conversion, which are used to convert on-site fire information into electrical signals;

[0034] e) Emergency start and stop button, used to control the start and stop of the gas fire extinguishing system;

[0035] f) Alarms, including sound and light alarms and gas release alarms, used to give an alarm when a fire occurs;

[0036] g) AI dual-spectrum thermal imaging intelligent temperature measurement and smoke sensing camera, with a built-in deep learning fireworks recognition algorithm at the front end, is used to detect regional intrusion, crossing the boundary and other functions.

[0037] In order to further optimize the above technical solution, the system is divided into three starting modes: automatic start, electrical manual start and mechanical manual start:

[0038] a) Self-starting control: when the control mode selection key on the gas fire extinguishing alarm controller is turned to the "automatic" position, the fire extinguishing system is in the automatic control state. When a fire occurs in the protection area, the fire detector sends out a fire signal, and the gas fire extinguishing alarm controller sends out an audible and visual alarm signal, and at the same time sends out a linkage command to close the interlocking device. After a delay time, a fire extinguishing command is issued to open the electromagnetic drive valve of the gas fire extinguishing device to release the starting gas. The starting gas opens the corresponding selection valve and container valve through the starting pipeline, releases the fire extinguishing agent, and implements the fire extinguishing;

[0039] b) Electrical manual control: When the control mode selection key on the gas fire extinguishing alarm controller is turned to the "manual" position, the fire extinguishing system is in manual control. When the operator or the AI ​​thermal imaging intelligent temperature measurement and smoke camera finds the fire in the protection area before the sensor, the fire extinguishing system can be started by pressing the start button on the manual control box or controller to release the fire extinguishing agent and put out the fire;

[0040] c) Mechanical manual control: when a fire alarm sounds and an abnormal situation is found, and there is no need to start the fire extinguishing system to extinguish the fire, the emergency stop button on the controller can be pressed to prevent the issuance of the fire extinguishing command.

[0041] In order to further optimize the above technical scheme, the front end of the gas fire extinguishing alarm controller is connected to various fire detectors. The fire detectors convert the on-site fire information into electrical signals and transmit them to the automatic alarm. The automatic alarm identifies the fire after processing, calculating and judging the received fire signals, and outputs command signals. First, the fire alarm device is activated, such as sound and light alarms. Second, the fire linkage device and the chain disaster reduction system are activated to drive various fire extinguishing equipment and disaster reduction equipment. Third, the fire alarm point information is pushed to the monitoring platform to reconfirm the on-site fire situation in a video visualization manner, so as to facilitate the accurate deployment of fire emergency plans.

[0042] In order to further optimize the above technical scheme, the gas fire extinguishing device is a cabinet-type heptafluoropropane gas fire extinguishing device, and the fire extinguishing agent contained in heptafluoropropane is HFC-ea; the fire extinguishing mechanism of heptafluoropropane is to produce fluorine-containing free radicals through the thermal decomposition of the fire extinguishing agent, and react with the H+, OH-, and O2-active free radicals produced in the branch chain reaction during the combustion reaction in the gas phase, thereby inhibiting the chemical reaction in the combustion process to implement fire extinguishing; according to the size of the protection area, a corresponding number of heptafluoropropane gas cylinders need to be equipped.

[0043] In order to further optimize the above technical scheme, the Anhui Zungui Link location of the coal mine visual safety protection system needs to be equipped with fireproof panels on the surface of the surrounding walls. The fireproof panels can improve the fire resistance of the building, and also have fire-resistant and flame-retardant effects; the surface of the fireproof panels is provided with a fireproof coating, which will expand to form an insulating layer when encountering fire, blocking heat transfer, and can maintain its integrity for a certain period of time at high temperatures to prevent flame penetration, which can extend the escape and rescue time of personnel.

[0044] In order to further optimize the above technical solution, the point-type smoke detector has a built-in eight-bit single-chip computer with A / D conversion, which has powerful analysis and judgment capabilities. Through the calculation program solidified inside the detector, it can automatically complete the compensation for changes in external environmental parameters and the judgment of fire alarms and faults, and can store the characteristic curve of environmental parameter changes, which can improve the real-time and accuracy of coal mine visual safety protection system in detecting fires; the point-type smoke detector is installed on the top of the protection area, and one detector covers approximately 20-30㎡.

[0045] In order to further optimize the above technical solution, the point-type temperature sensor can convert temperature changes into electrical signals to achieve the purpose of alarm. It has a built-in single-chip microcomputer with A / D conversion, which can sample and process data in real time and save 14 historical data. It can track the on-site situation through a curve display, which is convenient for users to analyze and judge the process of fire.

[0046] In order to further optimize the above technical solution, the emergency start-stop button is installed on site. When a fire occurs in the protected area, the "press to spray" button on the emergency start-stop button is pressed, and a gas spray request signal is sent to the gas fire extinguishing alarm controller. The gas fire extinguishing alarm controller sends a gas spray command, and after a delay, the gas spray solenoid valve is started. During the delay period, if the on-site personnel confirm that no fire has occurred, they can immediately press the "stop" button to terminate the start.

[0047] In order to further optimize the above technical solution, the front end of the AI ​​dual-spectrum thermal imaging intelligent temperature measurement smoke camera is built-in with a deep learning fire and smoke recognition algorithm: dual recognition of smoke and fire points can detect fires in time, can detect the generation of smoke keenly, and is not affected even in poor light or obstructed conditions, and can work stably around the clock, with functions such as regional intrusion and cross-border detection; when a fire occurs, the AI ​​dual-spectrum thermal imaging technology can quickly and accurately identify the location, size and temperature of the fire point, and through real-time monitoring of the fire point, it can grasp the development trend of the fire in time, so as to take corresponding fire-fighting measures to avoid the spread of the fire and reduce the losses caused by the fire; after detecting smoke or fire points, the AI ​​dual-spectrum thermal imaging intelligent temperature measurement smoke camera will immediately transmit the relevant alarm information to the visualization system platform software in real time. After receiving the alarm from the AI ​​dual-spectrum thermal imaging intelligent temperature measurement smoke camera, the visualization system platform software can accurately locate the location of the fire; the AI ​​dual-spectrum thermal imaging intelligent temperature measurement smoke camera can also transmit image and video information, and the visualization system platform software can integrate these visual data with location information, etc. Provide decision-making assistance for firefighters.

[0048] In order to further optimize the above technical solution, the visualization system platform software can receive information from multiple sensors, record various relevant data such as fire alarm information, sensor operation data, activation status of fire extinguishing equipment, etc., and store data for a long time.

[0049] In order to further optimize the above technical solution, after the cylinder is opened and starts to release HFC-227ea fire extinguishing agent to the fire scene, a pair of normally open contacts on the valve of the bottle head are in a closed state; when the "alarm" is sounded, the electronic clock set on the controller stops and can record the time when the first "alarm" is issued; after the fire is extinguished, the smoke exhaust and exhaust devices need to be turned on to clean up the fire scene in time.

[0050] In order to further optimize the above technical solution, when the working mode of the coal mine visual safety protection system is in the manual position, the control system can only issue a fire extinguishing "alarm", but cannot issue a command to the cylinder to release the heptafluoropropane fire extinguishing agent; when the operator manually presses the emergency start button, the fire extinguishing of the cylinder will be started after a delay of 20 to 30 seconds.

[0051] In order to further optimize the above technical scheme, any working scenario of the coal mine visual safety protection system needs to install smoke and temperature sensors at appropriate locations, and install fire-blocking partitions for fire-proof sealing; each cable needs to be coated with fire-retardant paint on the surface and the gaps between the cables need to be filled with flexible organic plugging materials to seal; a smoke exhaust fan needs to be installed to discharge smoke after fire extinguishing.

[0052] The present invention provides a disclosed visual safety protection system for coal mines, which can achieve efficient and accurate safety protection for the coal mine environment. Through fire detection, AI video analysis, linkage alarm, and automatic disposal, it can prevent, discover, and deal with possible fire alarms in an all-in-one manner, thereby reducing coal mine production losses.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. The visual safety protection system for coal mines is characterized by: include: a) Intelligent visualization system software platform, used to record fire alarm information, sensor operation data and activation of fire extinguishing equipment, and conduct anti-intrusion, fire and temperature early warning analysis, and record the status of fire extinguishing equipment, exhaust system, air conditioning, etc.; b) Gas fire extinguishing alarm controller, the front end of which can be connected to a fire detector, is used to receive the electrical signal converted by the fire detector, and output a fire command signal after processing, calculation and judgment; c) Gas fire extinguishing device, used to release fire extinguishing agent after the fire is confirmed; d) Point detectors, including point smoke detectors and point heat detectors, all have built-in eight-bit single-chip microcomputers with A / D conversion, which are used to convert on-site fire information into electrical signals; e) Emergency start and stop button, used to control the start and stop of the gas fire extinguishing system; f) Alarms, including sound and light alarms and gas release alarms, used to give an alarm when a fire occurs; g) AI dual-spectrum thermal imaging intelligent temperature measurement and smoke sensing camera, with a built-in deep learning fireworks recognition algorithm at the front end, is used to detect regional intrusion, crossing the boundary and other functions.

2. The visual safety protection system for coal mines according to claim 1 is characterized in that: The gas fire extinguishing device is a cabinet-type heptafluoropropane gas fire extinguishing device, and the fire extinguishing agent contained is HFC-ea; The point-type smoke detector and the point-type heat detector are connected in series with the gas fire extinguishing alarm controller on the alarm network loop, and are connected in parallel with the gas release alarm and the sound and light alarm on the alarm network loop respectively; The sound and light alarm has two alarm tones, and can alarm with sound and light simultaneously, or with sound or light independently.

3. The visual safety protection system for coal mines according to claim 2 is characterized in that: The cabinet-type heptafluoropropane gas fire extinguishing device is provided with an electromagnetically driven valve, which is connected in series with the gas fire extinguishing alarm controller through a control line, and the container containing the fire extinguishing agent is a steel cylinder; Two parallel sound and light alarm branches are arranged on the alarm network loop, one of which is connected in series with the emergency start and stop button and the input module; The gas fire extinguishing alarm controller is directly connected to the communication main circuit and the power supply circuit respectively.

4. The visual safety protection system for coal mines according to claim 3 is characterized in that: The input module and the valve of the cabinet-type heptafluoropropane gas fire extinguishing device are connected in series on the spraying feedback line.

5. The visual safety protection system for coal mines according to claim 1 is characterized in that: The point-type smoke detector is used to detect smoke and convert smoke signals into electrical signals; The point-type temperature sensing detector is used to detect temperature and convert the temperature signal into an electrical signal.

6. The visual safety protection system for coal mines according to claim 1, characterized in that: The intelligent visualization system software platform includes a data analysis module, and a plurality of control buttons are arranged on the gas fire extinguishing alarm controller.

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