Method for realizing passive perimeter security based on multi-source information fusion processing

Abstract

The application utilizes piezoelectric energy storage sensors to perceive the stress distribution change of the surrounding environment of key places, integrates the electrical signals generated by piezoelectric effect, and starts the perimeter security system when the threshold is exceeded, and realizes perimeter security recognition through pattern recognition and other means. The passive sensor mechanism proposed in the application can effectively reduce the energy consumption required for the perimeter security system to maintain the on state when there is no intrusion event. The electrical signals generated by the piezoelectric energy storage sensor can be used as input signals to start the system, and also have signal acquisition function. With the energy storage system, it is expected to provide energy supplement for the perimeter security system. The application adopts a variety of passive stress sensors, and uses heterogeneous sensor data mutual verification to enrich the feature details of intrusion events, and greatly improves the intrusion event discrimination ability. At the same time, through the operation mode of "no abnormal standby, abnormal start" and the charging mode of "signal processing, energy storage", the running time of the passive perimeter security system is greatly improved, and a more feasible technical solution is provided for the super-long time continuous monitoring of the safety-related places.

Description

Technical Field

[0001] This invention belongs to the interdisciplinary field of microelectromechanical systems, optical materials, pattern recognition and sensing technology. Specifically, it refers to a perimeter security method that integrates multiple sensors such as pyroelectric stress sensors, piezoelectric stress sensors and triboelectric stress sensors, and fuses and processes multi-source heterogeneous information to achieve passive identification of intrusion events. Background Technology

[0002] Perimeter security systems are comprehensive physical protection systems that deploy sensors in key locations such as banks, safes, archives, and cultural relic rooms to detect changes in multiple physical fields of the environment, including vibration, sound, pressure, and temperature. Through sensor signal processing and pattern recognition matching, they achieve accurate detection and type identification of intrusion events. The accuracy of a perimeter security system depends on the accuracy of its sensors; higher sensor accuracy makes it more difficult to conceal the corresponding physical quantities, resulting in better system performance.

[0003] Perimeter security systems based on stress sensors have significant development potential. Unlike sound, temperature, and image sensors, intruders find it difficult to eliminate the stress they generate on the environment. However, mechanically based stress sensors face bottlenecks in accuracy and sensitivity, while fiber optic stress sensors require a stable power supply to components such as lasers and detectors, making them unsuitable for the long-term operational requirements of perimeter security systems. Compared to intrusion events, the non-intrusion state, where no physical quantities change, is the norm, and the information collected in this state is meaningless. Therefore, a perimeter security system capable of long-term stable operation should ideally be passive, meaning it can standby with near-zero power consumption and quickly wake up in the event of an intrusion. Summary of the Invention

[0004] To address the aforementioned shortcomings, the technical problem this invention aims to solve is how to integrate a photoluminescent stress sensor, a piezoelectric stress sensor, and a triboelectric stress sensor and deploy them on the perimeter of a security-critical location. Under external force, these sensors generate photoluminescent, piezoelectric, and triboelectric signals, respectively. The perimeter security system's activation terminal integrates and accumulates these three signals; if a threshold is exceeded, the system is activated. Pattern recognition is used to analyze the characteristics of the three signals, and a voting process is performed to determine the appropriate signal, enabling efficient identification of stress-related intrusion events. Signals with less prominent characteristics are used for energy storage within the perimeter security system, achieving a balance between system energy consumption and operating time, further extending the system's lifespan.

[0005] To address the aforementioned issues while maintaining performance indicators such as intrusion event identification accuracy, this invention provides a method for achieving passive perimeter security based on multi-source information fusion processing. A piezoelectric sensor, a piezoelectric energy storage sensor, and a triboelectric sensor are deployed at corresponding locations according to the actual needs of the perimeter security system. The piezoelectric signal from the piezoelectric sensor is exported via a photodetector and input into the perimeter security system along with the piezoelectric signal from the piezoelectric energy storage sensor and the triboelectric signal from the triboelectric sensor. When an intrusion event occurs, the piezoelectric sensor, piezoelectric sensor, and triboelectric sensor generate piezoelectric, piezoelectric, and triboelectric signals respectively under external force. These signals are integrated and accumulated to form a trigger signal that activates the perimeter security system. Feature analysis is performed on the piezoelectric, piezoelectric, and triboelectric signals, and the intrusion event is retrieved using pattern recognition. The multi-source information is then compared to form an intrusion event identification and judgment result.

[0006] Preferably, the above-mentioned pressure-type sensor, piezoelectric energy storage sensor, and triboelectric sensor are close to each other and collect the same stress signal.

[0007] Preferably, when no intrusion event occurs, the perimeter security system is in a near-zero power standby state.

[0008] Preferably, for sensors deployed at other locations that can collect certain stress changes but whose signal characteristics are not obvious and have no reference value, their signals are uniformly input into the perimeter safety system power supply module to improve the battery life of the perimeter safety system.

[0009] Preferably, the above method specifically includes the following steps:

[0010] S1. Prepare and deploy photoluminescent, piezoelectric, and triboelectric sensors. Deploy the three types of sensors at key locations and use circuits to aggregate and export the photoluminescent, piezoelectric, and triboelectric signals.

[0011] S2. The output signal is decomposed into three parts. The first part is used to start the perimeter security system in standby mode, which is implemented by charge accumulation, electromagnetic relay or integral triggering. The second part is input to the perimeter security system after it is started. Through feature analysis and pattern recognition, intrusion events are identified. The multi-source information obtained from the analysis of various sensors is fused and processed, and the type of intrusion event is determined by comparison. The third part inputs the piezoelectric signal, piezoelectric signal and triboelectric signal that cannot be used for pattern recognition into the energy storage module of the perimeter security system through rectification.

[0012] S3. The integrator continuously identifies the start signal. If no start signal is received for a certain period of time, the perimeter security system is switched to a low-power standby state, waiting to be restarted when the next intrusion event occurs.

[0013] Preferably, the above-mentioned pressure-light sensor is made of stress-luminescent material, which generates stress-luminescence effect under the action of external force, and is converted into pressure-light signal after being received by photodetector or photodiode.

[0014] Preferably, the piezoelectric sensor described above is a sensor that converts the mechanical energy generated by stress into electrical energy, does not require an external power supply, and can output a piezoelectric signal.

[0015] Preferably, the above-mentioned triboelectric sensor is a sensor that converts the mechanical energy generated by friction into electrical energy, does not require an external power supply, and can output triboelectric signals.

[0016] This invention provides a passive perimeter security system based on multi-source information fusion processing, as described above. The system includes a piezoelectric sensor, a triboelectric sensor, a photodetector or photodiode, an integrator, and a perimeter security system. The piezoelectric sensor, piezoelectric sensor, and triboelectric sensor are integrated and deployed within the perimeter security area. The piezoelectric sensor is made of stress-luminescent material and generates a stress-luminescent effect under external force, which is received by the photodetector or photodiode and converted into a piezoelectric signal. The piezoelectric sensor converts the mechanical energy generated by stress into electrical energy and outputs a piezoelectric signal. The triboelectric sensor converts the mechanical energy generated by friction into electrical energy and outputs a triboelectric signal. All signals are aggregated and imported into the passive perimeter security system via an integrated circuit. When an external force acts on the perimeter security area, the piezoelectric sensor at the same location... Both piezoelectric and triboelectric sensors generate electrical signal responses, which are aggregated and fed into an integrator for accumulation. When the accumulation exceeds a threshold, the perimeter security system is triggered. The piezoelectric, triboelectric, and piezoelectric signals with the strongest signal strength and most detailed features are input as feature signals to the already activated perimeter security system and identified using pattern recognition methods. The multi-source sensing information generated by different sensors is compared, and the type of intrusion event is approved by voting. The remaining piezoelectric, triboelectric, and piezoelectric signals with less obvious features are input as energy storage signals to the perimeter security system's energy storage module to compensate for the energy consumption generated by the perimeter security system's operation. The integrator continuously identifies the activation signal. If no activation signal is received after a certain period of time, the perimeter security system is switched to a low-power standby state, waiting to be restarted when the next intrusion event occurs.

[0017] The present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-described method.

[0018] Compared with the prior art, the present invention achieves the following technical effects:

[0019] First, this invention proposes the idea of ​​improving perimeter security by using multi-source information fusion processing, and improving the identification accuracy of intrusion detection through cross-verification of different sensor data;

[0020] Secondly, this invention proposes a standby-start perimeter security system operation strategy, which starts the perimeter security system by triggering light, piezoelectric and triboelectric signals caused by intrusion events, and shuts down the perimeter security system when no intrusion event occurs. This strategy can greatly improve the operating time of the perimeter security system.

[0021] Furthermore, the use of various signal margins for perimeter safety energy storage as described in this invention will greatly extend the operating time of the perimeter safety system on the original basis, and the energy consumption is far lower than that of fiber optic vibration sensors. This characteristic will provide an important guarantee for the development of long-term, customizable perimeter safety systems. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This diagram illustrates an embodiment of the method for achieving passive perimeter security based on multi-source information fusion processing according to the present invention.

[0024] Figure 2 A schematic diagram of the passive perimeter security system based on multi-source information fusion of the present invention is shown;

[0025] Figure 3 This diagram illustrates another embodiment of the method for achieving passive perimeter security based on multi-source information fusion processing according to the present invention. Detailed Implementation

[0026] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0028] like Figure 1 As shown, this invention provides an embodiment of a method for achieving passive perimeter security based on multi-source information fusion processing, comprising:

[0029] S101. The fabrication of multi-source sensors or multi-source sensor arrays involves deploying piezoelectric sensors, piezoelectric energy storage sensors, and triboelectric sensors at corresponding locations according to the actual needs of the perimeter safety system. The three types of sensors are placed as close as possible to collect the same stress signal. The piezoelectric signal is exported through a photodetector and input into the perimeter safety system along with the piezoelectric and triboelectric signals.

[0030] S102. Activation of the perimeter security system: When no intrusion event occurs, the perimeter security system is in a near-zero power standby state. When an intrusion event occurs, the piezoresistive sensor, piezoelectric sensor, and triboelectric sensor generate piezoresistive signals, piezoelectric signals, and triboelectric signals under the action of external force. These signals are integrated and accumulated to form a trigger signal to activate the perimeter security system.

[0031] S103, the operation of the perimeter security system, performs feature analysis on the pressure light signal, piezoelectric signal, and triboelectric signal respectively, uses pattern recognition to invert intrusion events, and comprehensively compares multi-source information to form an intrusion event identification and judgment result. At the same time, for other sensors deployed at other locations that can collect certain stress changes but whose signal characteristics are not obvious and have no reference value, their signals are uniformly input into the perimeter security system power supply module to improve the endurance of the perimeter security system.

[0032] This invention also provides an embodiment of a method for achieving passive perimeter security based on multi-source information fusion processing. This method integrates various sensors with different physical principles, such as piezoelectric sensors, triboelectric sensors, and other sensors, into the same perimeter security system. The perimeter security system in standby mode is activated by piezoelectric, triboelectric, and other signals. High-precision intrusion event identification is achieved by comprehensively comparing the multi-source information corresponding to these signals. Simultaneously, the residual energy of the piezoelectric, triboelectric, and other signals is collected to recharge the perimeter security system.

[0033] like Figure 2 As shown in the figure, this embodiment illustrates an implementation of a passive perimeter security method based on multi-source information fusion, and its implementation steps are as follows:

[0034] (1) Integrate and deploy piezoelectric, triboelectric, and pyroelectric sensors in the perimeter security area. Piezoelectric sensors are made of stress-luminescent materials and generate stress-luminescence effect under external force (luminescence intensity is positively correlated with stress magnitude). After being received by a photodetector or photodiode, they are converted into piezoelectric signals. Piezoelectric sensors are sensors that can convert mechanical energy generated by stress into electrical energy without external power supply and can output piezoelectric signals. Triboelectric sensors are sensors that convert mechanical energy generated by friction into electrical energy without external power supply and can output triboelectric signals. The materials and structures of each type of sensor need to be precisely optimized to achieve the best output signal strength and feature information richness. All signals are aggregated and introduced into the passive perimeter security system through integrated circuits.

[0035] (2) The signals are divided into three categories: first, characteristic signals, which can retain parameter characteristics almost without loss, including piezoelectric characteristic signals, piezoelectric characteristic signals and triboelectric characteristic signals; second, start signals, which are used to start the perimeter safety system; and third, energy storage signals, which retain fewer parameter characteristics and are mainly used to store energy for the perimeter safety system.

[0036] (3) When an external force is applied to the perimeter safety area, the pyroelectric sensor, the piezoelectric sensor and the triboelectric sensor at the same point will all generate an electrical signal response, and the start signal will be aggregated and fed into the integrator for accumulation. When the accumulation exceeds the threshold, the perimeter safety system will be triggered.

[0037] (4) The piezoelectric signal, the triboelectric signal and the triboelectric signal with the strongest signal strength and the most feature details (usually from the same point where the stress is strongest) will be input as feature signals into the activated perimeter security system and identified by pattern recognition methods respectively; different sensors respond differently to the same stress change and have different reference patterns; compare the multi-source sensing information generated by different sensors and use voting and other judgment methods to verify the type of intrusion event;

[0038] (5) Other light-emitting signals, piezoelectric signals and triboelectric signals with less obvious characteristics will be used as energy storage signals to input the energy storage module of the perimeter safety system to compensate for the energy consumption generated during the operation of the perimeter safety system.

[0039] (6) The integrator continuously identifies the start signal. If no start signal is received for a certain period of time, the perimeter security system is switched to a low-power standby state and restarted when the next intrusion event occurs. The noise signal caused by environmental disturbance is input into the energy storage module of the perimeter security system to maximize the utilization of energy.

[0040] like Figure 3 As shown, this embodiment also provides a method for achieving passive perimeter security based on multi-source information fusion processing, including:

[0041] S201. Prepare and deploy piezoelectric, triboelectric, and pyroelectric sensors. Deploy all three types of sensors at key locations as much as possible. Use circuits to aggregate and export the piezoelectric, triboelectric, and pyroelectric signals. The piezoelectric sensor is made of stress-luminescent material, producing a stress-luminescence effect under external force (luminescence intensity is positively correlated with stress magnitude). After being received by a photodetector or photodiode, it is converted into a piezoelectric signal. The piezoelectric sensor is a sensor that can convert the mechanical energy generated by stress into electrical energy without external power supply and can output a piezoelectric signal. The triboelectric sensor is a sensor that converts the mechanical energy generated by friction into electrical energy without external power supply and can output a triboelectric signal. The materials and structures of each type of sensor need to be precisely optimized to achieve the best output signal strength and feature information richness.

[0042] S202. The output signal is decomposed into three parts. The first part is used to start the perimeter security system in standby mode, which can be implemented by charge accumulation, electromagnetic relay or integral triggering. The second part is input into the perimeter security system after it is started. Intrusion events are identified by feature analysis, pattern recognition and other methods. This part of the signal should be the piezoelectric signal, piezoelectric signal and triboelectric signal with the strongest signal strength, the most obvious signal characteristics and the richest signal details (that is, composed of the piezoelectric sensor, piezoelectric sensor and triboelectric sensor closest to the stress application point). The multi-source information analyzed by each sensor is fused and processed. The type of intrusion event is determined by comparison and judgment, thereby improving the accuracy of intrusion event identification. The piezoelectric signal, piezoelectric signal and triboelectric signal that cannot be used for pattern recognition are rectified and input into the perimeter security system energy storage module.

[0043] The passive nature of the S203 passive perimeter security system is reflected in three aspects: First, the piezoelectric, triboelectric, and photoelectric sensors have self-powered characteristics and do not require external power supply. Second, the perimeter security system only starts and consumes a large amount of energy when the sensor detects an intrusion event. When there is no intrusion event, the perimeter security system only needs to meet the basic conditions for power-on. Third, the energy storage signal that cannot be used for pattern recognition can also supplement the power consumption of the perimeter security system in the power-on state. If the electrical energy generated by external force can cover or even exceed the system energy consumption, the perimeter security system will achieve true passivity.

[0044] This invention provides an embodiment of a method for achieving passive perimeter security based on multi-source information fusion processing. It integrates various sensors with different physical principles, such as piezoelectric sensors, triboelectric sensors, and other sensors, into the same perimeter security system. The system is activated from a standby state by piezoelectric, piezoelectric, and triboelectric signals. High-precision intrusion event identification is achieved by comprehensively comparing the multi-source information corresponding to these signals. Simultaneously, the residual energy of the piezoelectric, piezoelectric, and triboelectric signals is collected to recharge the perimeter security system.

[0045] In some embodiments, a pressure-light sensor is a pressure-light sensor in which an external force such as pressure or vibration drives a stress-light luminescent material to generate a light radiation signal and use it as a sensing signal. The sensor may integrate a photodetector and output an electrical sensing signal, or it may not integrate a photodetector and directly output an optical sensing signal.

[0046] In some embodiments, when a photodetector is integrated, the integration method between the photodetector and the stress-emitting material is not limited.

[0047] In some embodiments, the perimeter security system based on a calendering stress sensor can be either in standby mode and passively awakened by stress sensing signals, or in operation mode and directly use stress sensing signals to identify and detect intrusion events.

[0048] In some embodiments, the calendered stress sensor can be used not only for perimeter safety systems, but also for monitoring static targets such as bridges, dams, and railways. All sensing and monitoring using the calendered stress sensor described in this invention falls within the scope of this invention.

[0049] In some embodiments, the stress-luminescent material is a composite material, including but not limited to ZnS and ZnS:Cu. 2+ ZnS:Mn 2 + ZnS:Al 3+ / Cu 2+ ZnS:Mn 2+ / Cu 2+ZnS:Al 3+ / Mn 2+ / Cu 2+ The compounds SrAl2O4Ca, CaZnOS:Sr, CaZnOS:Mn, CaZnOS:Pr, CaZnOS:Ho, CaZnOS:Er, CaZnOS:Dy, CaZnOS:Sm, CaZnOS:Eu, CaZnOS:Tm, CaZnOS:Nd, and CaZnOS:Yb can convert kinetic energy into light energy. Under stress, they will radiate light signals, and the intensity of the light signal is positively correlated with the magnitude of the stress.

[0050] In some embodiments, the radiated light signal can be in the visible light band or in the invisible light bands such as ultraviolet, near-infrared, mid-infrared, and far-infrared.

[0051] In some embodiments, piezoelectric sensors can sense external forces and generate electrical responses. Under the piezoelectric effect, they can convert the mechanical energy generated by external forces into electrical energy, achieving accurate measurement of external forces without the need for external power supply. The deployment and implementation of piezoelectric sensors are mainly determined by the actual needs of perimeter security. They can be deployed individually or in multiple sets in linkage. Piezoelectric sensors are different from piezoelectric ceramics. The basic principle of piezoelectric sensors is stress power generation, while the basic principle of piezoelectric ceramics is stress-driven electrical modulation. The method described in this invention uses stress power generation, and therefore has passive characteristics.

[0052] In some embodiments, the triboelectric stress sensor can sense external forces and generate an electrical response, converting the mechanical energy generated by the external force into electrical energy.

[0053] In some embodiments, taking a single-electrode mode triboelectric sensor as an example, a surface-structured PDMS film is used as the triboelectric layer, and a PDMS / CNT or PAAm / CNT composite material is used as the electrode layer. A copper wire is inserted into the electrode layer as a lead, and the composite material electrode layer is placed between the two PDMS film layers to form a sandwich structure, thereby realizing the triboelectric stress sensing function.

[0054] In some embodiments, the perimeter security system is in a near-zero power standby state when there is no intrusion event. When an intrusion event occurs, the piezoelectric sensor, piezoelectric sensor, and triboelectric sensor convert the stress signal caused by the intrusion event into an electrical response signal and decompose it into three parts. The first part is used to start the perimeter security system in standby state, which can be implemented by charge accumulation, electromagnetic relay, or integral triggering. The second part is input into the perimeter security system after it is started, and the intrusion event is identified by feature analysis, pattern recognition, etc. This part of the signal is the piezoelectric signal, piezoelectric signal, and triboelectric signal with the strongest signal strength, the most obvious signal characteristics, and the richest signal details (that is, composed of the piezoelectric sensor, piezoelectric sensor, and triboelectric sensor closest to the stress application point). The multi-source information analyzed by each sensor is fused and processed, and the intrusion event type is determined by comparison and judgment, thereby improving the accuracy of intrusion event identification. The third part is the piezoelectric signal, piezoelectric signal, and triboelectric signal that cannot be used for pattern recognition, which is rectified and input into the energy storage module of the perimeter security system.

[0055] In some embodiments, the activation method of the perimeter security system and the core algorithm for intrusion event identification are not limited; the structural parameters and charging mode of the energy storage module of the perimeter security system are not limited; the selection methods of the aforementioned activation signal, characteristic signal, and energy storage signal are not limited; the signal transformation method before the energy storage signal completes its energy storage function is not limited; and the deployment method, coverage, and application scenarios of the piezoelectric energy storage sensor or piezoelectric energy storage sensor array are not limited. Any solution that uses a piezoelectric energy storage sensor for stress sensing and possesses the aforementioned ultra-low power consumption operation strategy falls within the scope of this invention.

[0056] Compared with the prior art, the present invention has the following advantages:

[0057] First, this invention proposes the idea of ​​improving perimeter security by using multi-source information fusion processing, and improving the identification accuracy of intrusion detection through cross-verification of different sensor data;

[0058] Secondly, this invention proposes a standby-start perimeter security system operation strategy, which starts the perimeter security system by triggering light, piezoelectric and triboelectric signals caused by intrusion events, and shuts down the perimeter security system when no intrusion event occurs. This strategy can greatly improve the operating time of the perimeter security system.

[0059] Furthermore, the use of various signal margins for perimeter safety energy storage as described in this invention will greatly extend the operating time of the perimeter safety system on the original basis, and the energy consumption is far lower than that of fiber optic vibration sensors. This characteristic will provide an important guarantee for the development of long-term, customizable perimeter safety systems.

[0060] For ease of description, the above devices are described separately by function as various units. Of course, in implementing this application, the functions of each unit can be implemented in one or more software and / or hardware.

[0061] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0062] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0063] This application can be described in the general context of computer-executable instructions, such as program modules, that are executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc., that perform a specific task or implement a specific abstract data type. This application can also be practiced in distributed computing environments where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer storage media, including storage devices.

[0064] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0065] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0066] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0067] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0068] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0069] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0070] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0071] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method for realizing passive perimeter security based on multi-source information fusion processing, wherein a pressure light sensor, a piezoelectric energy storage sensor and a triboelectric sensor are deployed on corresponding points according to the actual needs of a perimeter security system, and the pressure light signal of the pressure light sensor is guided out by a photoelectric detector and input into the perimeter security system together with the piezoelectric signal of the piezoelectric energy storage sensor and the triboelectric signal of the triboelectric sensor; when an intrusion event occurs, the pressure light sensor, the piezoelectric sensor and the triboelectric sensor generate pressure light signals, piezoelectric signals and triboelectric signals respectively under the action of external force, and trigger signals are formed by integral accumulation to start the perimeter security system, the pressure light signals, the piezoelectric signals and the triboelectric signals are analyzed respectively, the intrusion event is inversed by pattern recognition, and the discrimination and determination results of the intrusion event are compared based on multi-source information, and the method comprises the following steps: S1.Preparing and deploying the pressure light sensor, the piezoelectric sensor and the triboelectric sensor, deploying the three types of sensors at key points, and using a circuit to guide the pressure light signal, the piezoelectric signal and the triboelectric signal out; S2.The output signal is divided into three parts, the first part is used to start the perimeter security system in standby state, which is implemented by charge accumulation, electromagnetic relay or integral trigger, the second part is input into the started perimeter security system, the intrusion event is discriminated by characteristic analysis and pattern recognition, and the multi-source information obtained by analyzing each sensor is processed, and the type of intrusion event is determined by comparison; the third part is the pressure light signal, the piezoelectric signal and the triboelectric signal which cannot be used for pattern recognition and is input into the energy storage module of the perimeter security system through rectification; S3.The integrator continuously identifies the start signal, and if the start signal is not received for a certain period of time, the perimeter security system is switched to a low-power standby state, and waits for the next intrusion event to restart.

2. The method for realizing perimeter security based on multi-source information fusion processing according to claim 1, characterized in that, The pressure light sensor, the piezoelectric energy storage sensor and the triboelectric sensor are close to each other and collect the same stress signal.

3. The method for realizing perimeter security based on multi-source information fusion processing according to claim 1, characterized in that, When no intrusion event occurs, the perimeter security system is in a near-zero power standby state.

4. The method for realizing perimeter security based on multi-source information fusion processing according to claim 1, characterized in that, For other point deployment, sensors that can collect certain stress changes but have no obvious signal characteristics and are not valuable for reference, their signals are uniformly input into the energy supply module of the perimeter security system to improve the endurance time of the perimeter security system.

5. The method for realizing perimeter security based on multi-source information fusion processing according to claim 4, characterized in that, The pressure light sensor is prepared from stress luminescent material, and generates stress luminescence effect under the action of external force, which is converted into a pressure light signal after being received by a photoelectric detector or a photosensitive diode.

6. The method for realizing perimeter security based on multi-source information fusion processing according to claim 4, characterized in that, The piezoelectric sensor is a sensor that converts mechanical energy generated by stress into electrical energy and does not need external power supply, and can output a piezoelectric signal.

7. The method for realizing perimeter security based on multi-source information fusion processing according to claim 4, characterized in that, The triboelectric sensor is a sensor that converts mechanical energy generated by friction into electrical energy and does not need external power supply, and can output a triboelectric signal.

8. A system for realizing the method for realizing passive perimeter security based on multi-source information fusion processing according to any one of claims 1-7, comprising a pressure light sensor, a piezoelectric sensor, a triboelectric sensor, a photodetector or a photosensitive diode, an integrator and a perimeter security system, wherein the pressure light sensor, the piezoelectric sensor and the triboelectric sensor are integrated and arranged in the perimeter security area, the pressure light sensor is made of a stress luminescent material and generates a stress luminescence effect under the action of external force, and is converted into a pressure light signal after being received by the photodetector or the photosensitive diode; the piezoelectric sensor converts mechanical energy generated by stress into electrical energy and outputs a piezoelectric signal. The triboelectric sensor converts mechanical energy generated by friction into electrical energy and outputs triboelectric signals; all signals are integrated into the passive perimeter security system through integrated circuits; when external force acts on the perimeter security area, the pressure light sensor, the piezoelectric sensor and the triboelectric sensor at the same point produce electrical signal responses, which will start the signal integration into the integrator for accumulation, and when the accumulation exceeds the threshold, the perimeter security system will be triggered; the pressure light signal, the piezoelectric signal and the triboelectric signal with the strongest signal strength and the most detailed features will be input as characteristic signals into the perimeter security system which has been started, and will be identified by pattern recognition method respectively; the multi-source sensing information generated by different sensors is compared, and the type of intrusion event is determined by voting; The pressure light signal, the piezoelectric signal and the triboelectric signal with less obvious features will be input as energy storage signals into the energy storage module of the perimeter security system to compensate for the energy consumption generated by the operation of the perimeter security system; the integrator continuously identifies the start signal, and if no start signal is received for a certain period of time, the perimeter security system will be switched to a low-power standby state, waiting for the next intrusion event to restart. 9.A computer readable storage medium having stored thereon a computer program, which, when executed by a processor, implements the method of any one of claims 1-7.

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