Electric bicycle centralized charging area security and protection integrated system and working method thereof

Abstract

The invention relates to an electric bicycle centralized charging area security and protection integrated system and a working method thereof, and belongs to the field of intelligent emergency management. The system comprises a fire monitoring module, a life detection module, a fire source identification module and a route planning module. The fire monitoring module is used for obtaining fire monitoring information, and the fire monitoring information comprises fire early warning information and safety information; the life detection module is used for detecting life detection information through a life detector when the fire early warning information is output; the fire source identification module is used for positioning a fire source coordinate based on the fire source sub-coordinate and issuing a security and protection instruction to the security and protection integrated end when the inlife information is output; and the route planning module is used for planning a fire behavior priority control route based on the life detection information when the life existence information is output and issuing a security and protection instruction to the security and protection integrated end. According to the invention, a direct way of integrated use of the safety protection and the security protection is provided by utilizing a method of combined use of the safety protection and the security protection, and meanwhile, an escape route is provided for trapped people.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent emergency management, and specifically relates to an integrated fire protection and security system for a centralized charging area for electric bicycles and a working method thereof. Background Art

[0002] Relevant national departments attach great importance to the safety of electric bicycle charging and have issued a series of regulatory policies, such as "Fire Safety Notices for Electric Bicycle Parking and Charging Places and Electric Vehicle Storage and Charging Places in Civil Buildings" and "Technical Specifications for Electric Bicycle Centralized Charging Facilities", which emphasize the safety and intelligence of electric bicycle charging facilities, require the strengthening of fire prevention and control capabilities, and strictly regulate charging behaviors. However, the following problems still exist in the market: the fire protection measures for electric bicycle centralized charging areas are not perfect. When a fire occurs, it is impossible to effectively protect the lives and health of personnel and avoid battery explosion injuries; the existing electric bicycle centralized charging areas have not achieved direct fire protection and security integration, and it is impossible to monitor the fire safety of electric bicycle centralized charging areas while taking into account security-related responsibilities; the fire protection measures in electric bicycle centralized charging areas are also imperfect. Since they are outdoors, the inaccurate positioning of the fire source can easily lead to a decrease in fire extinguishing efficiency, causing damage to life and property safety. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides an integrated fire protection and security system for a centralized charging area for electric bicycles and a working method thereof.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] An integrated fire protection and security system for electric bicycle centralized charging areas, including a fire monitoring module, a life detection module, a fire source identification module, and a route planning module:

[0006] The fire monitoring module is used to obtain fire monitoring information through a three-band point-type purple infrared flame detector and a smoke sensor. The fire monitoring information includes fire warning information and safety information. The fire warning information includes open fire warning information and smoke warning information. When the three-band point-type purple infrared flame detector detects a flame, the open fire warning information is output. When the smoke concentration detected by the smoke sensor is greater than a preset threshold, the smoke warning information is output.

[0007] The life detection module is used to output the fire warning information, and the fire protection integrated terminal outputs a life detection instruction, detects the life signs in the electric bicycle centralized charging area through the life detector and outputs the life detection information, and the life detection information includes the lifeless information, the life existence information, and the coordinates of the life body;

[0008] The fire source identification module is used to locate the fire source coordinates based on the fire source sub-coordinates when outputting the lifeless information and issue fire protection and security instructions to the fire protection and security integrated terminal to eliminate the fire through fire fighting equipment. The fire source sub-coordinates include smoke source coordinates, high temperature source coordinates, flame source coordinates, and explosion sound source coordinates;

[0009] The route planning module is used to plan a fire priority control route based on the life detection information when the life existence information is output, and issue fire protection and security instructions to the fire protection and security integrated terminal to eliminate the fire on the fire priority control route through fire-fighting equipment.

[0010] Preferably, locating the fire source coordinates based on the fire source sub-coordinates includes:

[0011] Determine the position with the lowest visibility in the electric bicycle centralized charging area as the smoke source through visibility detection and obtain the initial smoke source coordinates, and correct the initial smoke source coordinates through smoke adjustment data to obtain the smoke source coordinates, wherein the smoke adjustment data includes wind speed, wind direction, burning time, charging area plane area, and smoke area;

[0012] Determine the location with the highest temperature in the centralized charging area of ​​electric bicycles as a high temperature source through temperature detection and obtain the coordinates of the high temperature source;

[0013] Determine the flame source coordinates by using the three-band point-type purple infrared flame detector;

[0014] Obtaining the coordinates of the deflagration sound source by improving the sound source detection method;

[0015] The fire source coordinates are obtained based on the average value of the fire source sub-coordinates.

[0016] Preferably, the step of correcting the initial smoke source coordinates by using smoke adjustment data to obtain the smoke source coordinates comprises:

[0017] The flue gas regulation value is calculated by the flue gas regulation data, and the calculation formula is: Among them, a is the smoke adjustment value, v is the wind speed, t is the burning time, S a is the flue gas area, S is the plane area of ​​the charging area;

[0018] The initial smoke source coordinates are translated in the opposite direction of the wind direction to obtain the smoke source coordinates, and the translation distance is the smoke adjustment value.

[0019] Preferably, obtaining the deflagration sound source coordinates by improving the sound source detection method comprises:

[0020] When a battery explosion sound is identified, a microphone delay is obtained through a preset microphone array element, wherein the microphone array element includes an array element origin, a first microphone array element, a second microphone array element, and a third microphone array element, and the array element spacings from the remaining microphone array elements to the array element origin are equal, and the coordinates of the array element origin are specified as (0,0,0), and the microphone delay includes a first microphone delay, a second microphone delay, and a third microphone delay;

[0021] The coordinates of the deflagration sound source are obtained based on the microphone time delay, and the expression is: Among them, (x, y, z) is the coordinate of the explosion source, L is the array element spacing, c is the propagation speed of sound waves in the air, r is the comprehensive delay, r i is the microphone delay, i=1,2,3.

[0022] Preferably, obtaining the microphone delay by using a preset microphone array element comprises:

[0023] Acquire microphone array element receiving signals of the microphone array elements, wherein the microphone array element receiving signals include an array element origin receiving signal, a first microphone array element receiving signal, a second microphone array element receiving signal, and a third microphone array element receiving signal;

[0024] Performing a sigmoid function transformation on the microphone array element receiving signal obtains a transformed array element receiving signal, wherein the transformed array element receiving signal includes a transformed array element origin receiving signal, a first transformed array element receiving signal, a second transformed array element receiving signal, and a third transformed array element receiving signal, and the expression is: Among them, s 0s (n) is the received signal at the origin of the transformed array element, s 1s (n) is the first transformed array element receiving signal, s 2s (n) is the second transformed array element receiving signal, s 3s (n) is the third transformed array element receiving signal, s0(n) is the array element origin receiving signal, s1(n) is the first microphone array element receiving signal, s2(n) is the second microphone array element receiving signal, and s3(n) is the third microphone array element receiving signal;

[0025] Perform a covariance operation on the transformed array element origin received signal to obtain a covariance array element origin received signal, and the operation formula is R 00 (t0) = E[s 0s (n) A s 0s (n) B ], where R 00 (t) is the received signal at the origin of the covariance array element, E(·) is the expectation, A is the first expectation coefficient, and its value is [0,2), and B is the second expectation coefficient, and its value is [0,2);

[0026] The covariance operation is performed on the transformation array element origin received signal and the first transformation array element received signal, the second transformation array element received signal, and the third transformation array element received signal to obtain the first covariance array element received signal, the second covariance array element received signal, and the third covariance array element received signal. The operation formula is R oi (t i )=E[s 0s (n) A s is (n+t i ) B ], i = 1, 2, 3, where R 0i (t i ) is the covariance of the i-th array element receiving signal, t i is the time delay between the signal received by the i-th transformation element and the signal received at the origin of the transformation element;

[0027] Perform discrete Fourier transform on the covariance array element origin received signal, the first covariance array element received signal, the second covariance array element received signal, and the third covariance array element received signal to obtain Fourier received signals, which can be mathematically described as: Among them, X 0i (t i ) is the Fourier received signal, j is the imaginary part, when i=0, t0 takes the value of 0;

[0028] The power spectrum density function is calculated based on the Fourier received signal, and the calculation formula is φ oi (t i )=X oi (t i )X oi *(t i ), i = 0, 1, 2, 3, where φ oi (ti) is the power spectral density function, X oi * (t i ) is X 0i (t i )'s complex conjugate;

[0029] Perform Fourier transform on the power spectral density function to obtain the microphone delay, and the calculation formula is: Among them, r i is the microphone delay, and F is the Fourier transform.

[0030] Preferably, planning a fire priority control route based on the life detection information includes:

[0031] The exit coordinates of the centralized charging area for electric bicycles are obtained, and the fire priority control route between the exit coordinates and the coordinates of the living body is obtained through an improved path planning method. The improved path planning method simplifies the exit coordinates and the coordinates of the living body to the same horizontal direction, and constructs an ellipse with the minimum path cost between the exit coordinates and the coordinates of the living body as the focal length. The ellipse is converged by iteratively improving the path planning algorithm to obtain the fire priority control route.

[0032] A fire protection and safety integrated method for centralized charging areas for electric bicycles, the implementation of which comprises the following steps:

[0033] The fire monitoring information is obtained by a three-band point-type purple infrared flame detector and a smoke sensor, wherein the fire monitoring information includes fire warning information and safety information, and the fire warning information includes open fire warning information and smoke warning information. When the three-band point-type purple infrared flame detector detects a flame, the open fire warning information is output, and when the smoke concentration detected by the smoke sensor is greater than a preset threshold, the smoke warning information is output;

[0034] When the fire warning information is output, the fire protection integrated terminal outputs a life detection instruction, detects life signs in the electric bicycle centralized charging area through a life detector and outputs life detection information, wherein the life detection information includes lifeless information, life existence information, and life body coordinates;

[0035] When the lifeless information is output, the fire source coordinates are located based on the fire source sub-coordinates and a fire safety and security command is issued to the fire safety and security integrated terminal to eliminate the fire through fire fighting equipment. The fire source sub-coordinates include smoke source coordinates, high temperature source coordinates, flame source coordinates, and explosion sound source coordinates;

[0036] When the life existence information is output, a fire priority control route is planned based on the life detection information and a fire safety and security command is issued to the fire safety and security integrated terminal to eliminate the fire on the fire priority control route through fire fighting equipment.

[0037] An electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the above-mentioned electric bicycle centralized charging area fire protection and security integrated system is implemented.

[0038] A storage medium containing computer executable instructions, which, when executed by a computer processor, are used to execute the above-mentioned electric bicycle centralized charging area fire protection and security integrated system.

[0039] The beneficial effects of the present invention are:

[0040] (1) The fire monitoring module, life detection module, fire source identification module, and route planning module are used to realize the integration of fire protection and security in the centralized charging area for electric bicycles. While monitoring the fire safety in the centralized charging area for electric bicycles, the relevant responsibilities for security are taken into account, and the functions of fire monitoring, safety monitoring, and automatic fire extinguishing are realized, so as to protect the safety of the centralized charging area for electric bicycles and fulfill the responsibility of fire protection.

[0041] (2) The fire source coordinates are located by fire source sub-coordinates, taking into account the smoke, high temperature, flame, and deflagration conditions when the fire occurs. At the same time, the fire source coordinates are corrected based on wind speed, wind direction, burning time, charging area plane area, and smoke area to achieve accurate positioning of the fire source, which is conducive to the operation of subsequent fire fighting measures.

[0042] (3) Plan fire priority control routes based on life detection information to provide optimal escape routes for people who are still in the electric bicycle centralized charging area when a fire occurs, thereby protecting their lives.

[0043] (4) The microphone delay is obtained through the microphone array element to suppress the pulse noise and improve the estimation accuracy of the delay, thereby achieving accurate positioning of the explosion sound source and assisting in the final positioning of the fire source. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0045] Figure 1 The present invention is a schematic diagram of an integrated fire and security system for a centralized charging area for electric bicycles. DETAILED DESCRIPTION

[0046] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0047] The working principle and use process of the present invention:

[0048] See also Figure 1 , an integrated fire protection and security system for electric bicycle centralized charging areas, including a fire monitoring module, a life detection module, a fire source identification module, and a route planning module:

[0049] The fire monitoring module is used to obtain fire monitoring information through a three-band point-type purple infrared flame detector and a smoke sensor. The fire monitoring information includes fire warning information and safety information. The fire warning information includes open fire warning information and smoke warning information. When the three-band point-type purple infrared flame detector detects a flame, the open fire warning information is output. When the smoke concentration detected by the smoke sensor is greater than a preset threshold, the smoke warning information is output.

[0050] The life detection module is used to output the fire warning information, and the fire protection integrated terminal outputs a life detection instruction, detects the life signs in the electric bicycle centralized charging area through the life detector and outputs the life detection information, and the life detection information includes the lifeless information, the life existence information, and the coordinates of the life body;

[0051] The fire source identification module is used to locate the fire source coordinates based on the fire source sub-coordinates when outputting the lifeless information and issue fire protection and security instructions to the fire protection and security integrated terminal to eliminate the fire through fire fighting equipment. The fire source sub-coordinates include smoke source coordinates, high temperature source coordinates, flame source coordinates, and explosion sound source coordinates;

[0052] The route planning module is used to plan a fire priority control route based on the life detection information when the life existence information is output, and issue fire protection and security instructions to the fire protection and security integrated terminal to eliminate the fire on the fire priority control route through fire-fighting equipment.

[0053] In this embodiment, the fire source coordinates are located based on the fire source sub-coordinates, which can be implemented by the following steps:

[0054] Determine the position with the lowest visibility in the electric bicycle centralized charging area as the smoke source through visibility detection and obtain the initial smoke source coordinates, and correct the initial smoke source coordinates through smoke adjustment data to obtain the smoke source coordinates, wherein the smoke adjustment data includes wind speed, wind direction, burning time, charging area plane area, and smoke area;

[0055] Determine the location with the highest temperature in the centralized charging area of ​​electric bicycles as a high temperature source through temperature detection and obtain the coordinates of the high temperature source;

[0056] Determine the flame source coordinates by using the three-band point-type purple infrared flame detector;

[0057] Obtaining the coordinates of the deflagration sound source by improving the sound source detection method;

[0058] The fire source coordinates are obtained based on the average value of the fire source sub-coordinates.

[0059] In this embodiment, the smoke source coordinates are obtained by correcting the initial smoke source coordinates using smoke adjustment data, which can be specifically implemented by the following steps:

[0060] The flue gas regulation value is calculated by the flue gas regulation data, and the calculation formula is: Where a is the smoke adjustment value in meters, v is the wind speed in meters per second, t is the burning time in seconds, S a is the flue gas area in square meters, S is the plane area of ​​the charging area in square meters;

[0061] The initial smoke source coordinates are translated in the opposite direction of the wind direction to obtain the smoke source coordinates, and the translation distance is the smoke adjustment value.

[0062] In this embodiment, the explosion sound source coordinates are obtained by improving the sound source detection method, which can be implemented by the following steps:

[0063] When a fire occurs in a centralized charging area for electric bicycles, the battery is very likely to explode. An audio recognition model is trained through historical battery explosion audio data to identify the battery explosion sound. When the battery explosion sound is identified, a microphone delay is obtained through a preset microphone array element. The microphone array element includes an array element origin, a first microphone array element, a second microphone array element, and a third microphone array element. The array element spacings of the remaining microphone array elements to the array element origin are equal. The coordinates of the array element origin are specified as (0,0,0). The microphone delay includes a first microphone delay, a second microphone delay, and a third microphone delay.

[0064] The coordinates of the deflagration sound source are obtained based on the microphone time delay, and the expression is: Among them, (x, y, z) is the coordinate of the explosion source, L is the array element spacing, c is the propagation speed of sound waves in the air, r is the comprehensive delay, r i is the microphone delay, i=1,2,3.

[0065] In this embodiment, the microphone delay is obtained by using a preset microphone array element, which can be implemented by the following steps:

[0066] Acquire microphone array element receiving signals of the microphone array elements, wherein the microphone array element receiving signals include an array element origin receiving signal, a first microphone array element receiving signal, a second microphone array element receiving signal, and a third microphone array element receiving signal;

[0067] Performing a sigmoid function transformation on the microphone array element receiving signal obtains a transformed array element receiving signal, wherein the transformed array element receiving signal includes a transformed array element origin receiving signal, a first transformed array element receiving signal, a second transformed array element receiving signal, and a third transformed array element receiving signal, and the expression is: Among them, s0s (n) is the received signal at the origin of the transformed array element, s 1s (n) is the first transformed array element receiving signal, s 2s (n) is the second transformed array element receiving signal, s 3s (n) is the third transformed array element receiving signal, s0(n) is the array element origin receiving signal, s1(n) is the first microphone array element receiving signal, s2(n) is the second microphone array element receiving signal, and s3(n) is the third microphone array element receiving signal;

[0068] Perform a covariance operation on the transformed array element origin received signal to obtain a covariance array element origin received signal, and the operation formula is R oo (t0) = E[s 0s (n) A s 0s (n) B ], where R 00 (t) is the received signal at the origin of the covariance array element, E(·) is the expectation, A is the first expectation coefficient, and its value is [0,2), and B is the second expectation coefficient, and its value is [0,2);

[0069] The covariance operation is performed on the transformation array element origin received signal and the first transformation array element received signal, the second transformation array element received signal, and the third transformation array element received signal to obtain the first covariance array element received signal, the second covariance array element received signal, and the third covariance array element received signal. The operation formula is R oi (t i )=E[s 0s (n) A s is (n+t i ) B ], i = 1, 2, 3, where R 0i (t i ) is the covariance of the i-th array element receiving signal, t i is the time delay between the signal received by the i-th transformation element and the signal received at the origin of the transformation element;

[0070] Perform discrete Fourier transform on the covariance array element origin received signal, the first covariance array element received signal, the second covariance array element received signal, and the third covariance array element received signal to obtain Fourier received signals, which can be mathematically described as: Among them, X 0i (t i ) is the Fourier received signal, j is the imaginary part, when i=0, t0 takes the value of 0;

[0071] The power spectrum density function is calculated based on the Fourier received signal, and the calculation formula is φ oi (t i)=X oi (t i )X oi *(t i ), i = 0, 1, 2, 3, where φ oi (t i ) is the power spectral density function, X oi *(t i ) is X 0i (t i )'s complex conjugate;

[0072] Perform Fourier transform on the power spectral density function to obtain the microphone delay, and the calculation formula is: Among them, r i is the microphone delay, and F is the Fourier transform.

[0073] In this embodiment, planning a fire priority control route based on the life detection information can be specifically implemented through the following steps:

[0074] The exit coordinates of the centralized charging area for electric bicycles are obtained, and the fire priority control route between the exit coordinates and the coordinates of the living body is obtained by an improved path planning method. The improved path planning method simplifies the exit coordinates and the coordinates of the living body to the same horizontal direction, and constructs an ellipse with the minimum path cost between the exit coordinates and the coordinates of the living body as the focal length. The major axis and the minor axis of the ellipse are continuously reduced through algorithm iteration, and the ellipse continuously converges until it focuses on the fire priority control route between the two foci.

[0075] The improved path planning method is specifically as follows:

[0076] Step 1: Divide the electric bicycle centralized charging area into grids with equal areas, set the grid where the fire source sub-coordinates are located and the surrounding grids as inaccessible grids, and set the remaining grids as accessible grids;

[0077] Step 2: Establishing random growth trees for the exit coordinates and the life body coordinates based on the grid, initializing the starting point, point set and edge set of the random growth tree, and clearing the optimal path, the empty set in the point set and edge set, and the path containing the inaccessible grid;

[0078] Step 3: Randomly sample to obtain a random point, and use the Near function to set the nodes on the random growth tree that are closest to the random point as the neighbor node set. When the neighbor nodes of the random growth tree are all empty, the random growth tree cannot be connected. At this time, the nearest vertex on the random growth tree that is closest to the random point is updated as the neighbor node set through the Nearest function;

[0079] Step 4: Sort the neighbor node sets respectively by using the GetSortedList function to obtain an ordered list, obtain the best parent node closest to the random point in the randomly grown tree by using the GetBestTreeParent function, select the tree mark and connect the feasible paths;

[0080] Step 5: When the tree flag is true, the randomly grown tree of the exit coordinates is updated according to the tree flag, the random point is added to the point set, and the random point and the optimal parent node are added to the edge set; when the tree flag is false, the randomly grown tree of the life body coordinates is updated according to the tree flag, the random point is added to the point set, and the random point and the optimal parent node are added to the edge set;

[0081] Repeat Step 3-5, respectively merge the point set and edge set of the randomly grown tree to obtain the fire priority control route, and the number of repetitions can be determined according to actual conditions.

[0082] An integrated fire protection and security method for a centralized charging area for electric bicycles, comprising:

[0083] The fire monitoring information is obtained by a three-band point-type purple infrared flame detector and a smoke sensor, wherein the fire monitoring information includes fire warning information and safety information, and the fire warning information includes open fire warning information and smoke warning information. When the three-band point-type purple infrared flame detector detects a flame, the open fire warning information is output, and when the smoke concentration detected by the smoke sensor is greater than a preset threshold, the smoke warning information is output;

[0084] When the fire warning information is output, the fire protection integrated terminal outputs a life detection instruction, detects life signs in the electric bicycle centralized charging area through a life detector and outputs life detection information, wherein the life detection information includes lifeless information, life existence information, and life body coordinates;

[0085] When the lifeless information is output, the fire source coordinates are located based on the fire source sub-coordinates and a fire safety and security command is issued to the fire safety and security integrated terminal to eliminate the fire through fire fighting equipment. The fire source sub-coordinates include smoke source coordinates, high temperature source coordinates, flame source coordinates, and explosion sound source coordinates;

[0086] When the life existence information is output, a fire priority control route is planned based on the life detection information and a fire safety and security command is issued to the fire safety and security integrated terminal to eliminate the fire on the fire priority control route through fire fighting equipment.

[0087] The computer storage medium of the embodiment of the present invention may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device.

[0088] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0089] The program code included on the computer readable medium can be transmitted with any appropriate medium, including but not limited to wireless, electric wire, optical cable, RF, etc., or any suitable combination of the above. The computer program code for performing the operation of the present invention can be written in one or more programming languages ​​or their combinations, and the programming language includes object-oriented programming languages-such as Java, Smalltalk, C++, and also includes conventional procedural programming languages-such as "C" language or similar programming languages. The program code can be executed completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on the remote computer, or completely on the remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0090] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An integrated fire and security system for electric bicycle centralized charging areas, characterized in that: The electric bicycle centralized charging area fire protection and security integrated system includes a fire monitoring module, a life detection module, a fire source identification module, and a route planning module; The fire monitoring module is used to obtain fire monitoring information through a three-band point-type purple infrared flame detector and a smoke sensor. The fire monitoring information includes fire warning information and safety information. The fire warning information includes open fire warning information and smoke warning information. When the three-band point-type purple infrared flame detector detects a flame, the open fire warning information is output. When the smoke concentration detected by the smoke sensor is greater than a preset threshold, the smoke warning information is output. The life detection module is used to output the fire warning information, and the fire protection integrated terminal outputs a life detection instruction, detects the life signs in the electric bicycle centralized charging area through the life detector and outputs the life detection information, and the life detection information includes the lifeless information, the life existence information, and the coordinates of the life body; The fire source identification module is used to locate the fire source coordinates based on the fire source sub-coordinates when outputting the lifeless information and issue fire protection and security instructions to the fire protection and security integrated terminal to eliminate the fire through fire fighting equipment; The route planning module is used to plan a fire priority control route based on the life detection information when the life existence information is output, and issue fire protection and security instructions to the fire protection and security integrated terminal to eliminate the fire on the fire priority control route through fire-fighting equipment.

2. The fire protection and security integrated system for centralized charging areas for electric bicycles according to claim 1 is characterized in that: The fire source sub-coordinates include smoke source coordinates, high temperature source coordinates, flame source coordinates, and deflagration sound source coordinates.

3. The fire protection and security integrated system for centralized charging areas for electric bicycles according to claim 2 is characterized in that: The fire source coordinate positioning based on the fire source sub-coordinates includes: Determine the position with the lowest visibility in the electric bicycle centralized charging area as the smoke source through visibility detection and obtain the initial smoke source coordinates, and correct the initial smoke source coordinates through smoke adjustment data to obtain the smoke source coordinates, wherein the smoke adjustment data includes wind speed, wind direction, burning time, charging area plane area, and smoke area; Determine the location with the highest temperature in the centralized charging area of ​​electric bicycles as a high temperature source through temperature detection and obtain the coordinates of the high temperature source; Determine the flame source coordinates by using the three-band point-type purple infrared flame detector; Obtaining the coordinates of the deflagration sound source by improving the sound source detection method; The fire source coordinates are obtained based on the average value of the fire source sub-coordinates.

4. The fire protection and security integrated system for centralized charging areas for electric bicycles according to claim 3 is characterized in that: The step of correcting the initial smoke source coordinates by using smoke adjustment data to obtain the smoke source coordinates includes: The flue gas regulation value is calculated by the flue gas regulation data, and the calculation formula is: Among them, a is the smoke adjustment value, v is the wind speed, t is the burning time, S a is the flue gas area, S is the plane area of ​​the charging area; The initial smoke source coordinates are translated in the opposite direction of the wind direction to obtain the smoke source coordinates, and the translation distance is the smoke adjustment value.

5. The fire protection and security integrated system for centralized charging areas for electric bicycles according to claim 3 is characterized in that: The obtaining of the deflagration sound source coordinates by improving the sound source detection method comprises: When a battery explosion sound is identified, a microphone delay is obtained through a preset microphone array element, wherein the microphone array element includes an array element origin, a first microphone array element, a second microphone array element, and a third microphone array element, and the array element spacings from the remaining microphone array elements to the array element origin are equal, and the coordinates of the array element origin are specified as (0,0,0), and the microphone delay includes a first microphone delay, a second microphone delay, and a third microphone delay; The coordinates of the deflagration sound source are obtained based on the microphone time delay, and the expression is: Among them, (x, y, z) is the coordinate of the explosion source, L is the array element spacing, c is the propagation speed of sound waves in the air, r is the comprehensive delay, r i is the microphone delay, i=1,2,3.

6. The fire protection and security integrated system for centralized charging areas for electric bicycles according to claim 5 is characterized in that: The obtaining of microphone delay by using a preset microphone array element comprises: Acquire microphone array element receiving signals of the microphone array elements, wherein the microphone array element receiving signals include an array element origin receiving signal, a first microphone array element receiving signal, a second microphone array element receiving signal, and a third microphone array element receiving signal; Performing a sigmoid function transformation on the microphone array element receiving signal obtains a transformed array element receiving signal, wherein the transformed array element receiving signal includes a transformed array element origin receiving signal, a first transformed array element receiving signal, a second transformed array element receiving signal, and a third transformed array element receiving signal, and the expression is: Among them, s 0s (n) is the received signal at the origin of the transformed array element, s 1s (n) is the first transformed array element receiving signal, s 2s (n) is the second transformed array element receiving signal, s 3s (n) is the third transformed array element receiving signal, s0(n) is the array element origin receiving signal, s1(n) is the first microphone array element receiving signal, s2(n) is the second microphone array element receiving signal, and s3(n) is the third microphone array element receiving signal; Perform a covariance operation on the transformed array element origin received signal to obtain a covariance array element origin received signal, and the operation formula is R 00 (t0) = E[s 0s (n) A s 0s (n) B ], where R 00 (t) is the received signal at the origin of the covariance array element, E(·) is the expectation, A is the first expectation coefficient, and its value is [0,2), and B is the second expectation coefficient, and its value is [0,2); The covariance operation is performed on the transformation array element origin received signal and the first transformation array element received signal, the second transformation array element received signal, and the third transformation array element received signal to obtain the first covariance array element received signal, the second covariance array element received signal, and the third covariance array element received signal. The operation formula is R oi (t i )=E[s 0s (n) A s is (n+t i ) B ], i = 1, 2, 3, where R 0i (t i ) is the covariance of the i-th array element receiving signal, t i is the time delay between the signal received by the i-th transformation array element and the signal received at the origin of the transformation array element; Perform discrete Fourier transform on the covariance array element origin received signal, the first covariance array element received signal, the second covariance array element received signal, and the third covariance array element received signal to obtain Fourier received signals, which can be mathematically described as: Among them, X 0i (t i ) is the Fourier received signal, j is the imaginary part, when i=0, t0 takes the value of 0; The power spectrum density function is calculated based on the Fourier received signal, and the calculation formula is φ oi (t i )=X oi (t i )X oi *(t i ), i = 0, 1, 2, 3, where φ oi (ti) is the power spectral density function, X oi *(t i ) is X 0i (t i )'s complex conjugate; Perform Fourier transform on the power spectral density function to obtain the microphone delay, and the calculation formula is: Among them, r i is the microphone delay, and F is the Fourier transform.

7. The fire protection and security integrated system for centralized charging areas for electric bicycles according to claim 1 is characterized in that: The planning of the fire priority control route based on the life detection information includes: The exit coordinates of the centralized charging area for electric bicycles are obtained, and the fire priority control route between the exit coordinates and the coordinates of the living body is obtained through an improved path planning method. The improved path planning method simplifies the exit coordinates and the coordinates of the living body to the same horizontal direction, and constructs an ellipse with the minimum path cost between the exit coordinates and the coordinates of the living body as the focal length. The ellipse is converged by iteratively improving the path planning algorithm to obtain the fire priority control route.

8. A fire protection and security integrated method for centralized charging areas for electric bicycles, characterized in that: The method is applied to the fire protection and security integrated system for centralized charging areas of electric bicycles as described in any one of claims 1 to 7, comprising the following steps: The fire monitoring information is obtained by a three-band point-type purple infrared flame detector and a smoke sensor, wherein the fire monitoring information includes fire warning information and safety information, and the fire warning information includes open fire warning information and smoke warning information. When the three-band point-type purple infrared flame detector detects a flame, the open fire warning information is output, and when the smoke concentration detected by the smoke sensor is greater than a preset threshold, the smoke warning information is output; When the fire warning information is output, the fire protection integrated terminal outputs a life detection instruction, detects life signs in the electric bicycle centralized charging area through a life detector and outputs life detection information, wherein the life detection information includes lifeless information, life existence information, and life body coordinates; When the lifeless information is output, the fire source coordinates are located based on the fire source sub-coordinates and a fire safety and security command is issued to the fire safety and security integrated terminal to eliminate the fire through fire fighting equipment. The fire source sub-coordinates include smoke source coordinates, high temperature source coordinates, flame source coordinates, and explosion sound source coordinates; When the life existence information is output, a fire priority control route is planned based on the life detection information and a fire safety and security command is issued to the fire safety and security integrated terminal to eliminate the fire on the fire priority control route through fire fighting equipment.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, an integrated fire and security system for a centralized charging area for electric bicycles is implemented as described in any one of claims 1-7.

10. A storage medium containing computer executable instructions, characterized in that: The computer executable instructions, when executed by a computer processor, are used to execute the electric bicycle centralized charging area fire and security integrated system as described in any one of claims 1-7.

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