Intrusion-proof nuclear power plant electronic fence capable of accurately locating intrusion site

Abstract

The application provides an anti-invasion nuclear power station electronic fence capable of accurately positioning an invasion site, which comprises a physical fence layer comprising a plurality of basic fence units for basic physical blocking, a sensing detection layer comprising a plurality of sensing detection units and a central control unit, the sensing detection layer being arranged on the physical fence layer and being used for detecting whether an invasion behavior exists and determining an invasion site. The sensing detection unit comprises a basic sensing component, a sensing reaction component and a trigger circuit component, and the sensing detection layer is configured to: in a first state, the trigger circuit component is triggered, and the central control unit starts to detect whether an invasion behavior exists; and in a second state, the central control unit finally determines that an invasion behavior exists and an invasion site. Through the above design, the application solves the problems that the existing fence cannot realize more detailed identification effect and cannot provide more accurate invasion information for users.

Description

Technical Field

[0001] This invention relates to the field of fence security technology, and in particular to an anti-intrusion electronic fence for nuclear power plants that can accurately locate intrusion sites. Background Technology

[0002] Fences are generally used around facilities such as factories, airports, and nuclear power plants to prevent unauthorized entry by outsiders. However, common fences only have basic physical interception functions and cannot meet the requirements of higher security levels. In response to this problem, some people have improved the existing tension fences.

[0003] For example, the prior art disclosed in CN217426229U discloses an automatic alarm device for electronic fence perimeter. An alarm device is fixedly installed on the top of the main fence post, an infrared transmitter is fixedly installed on the main post, an infrared receiver is fixedly installed on the secondary post, and a pyroelectric sensor for detecting whether a person is approaching the fence panel is fixedly installed on the fence panel. The alarm device is connected to the infrared receiver and the pyroelectric sensor. When a person approaches the fence panel, the alarm device is powered on and emits a pre-alarm signal.

[0004] However, this existing technology still has shortcomings. The infrared transmitter and receiver detect whether someone is approaching the fence based on whether the infrared receiver receives a signal from the infrared transmitter. However, it can only roughly determine whether someone is approaching the fence by the presence of an obstruction between the infrared transmitter and receiver, and cannot further pinpoint the more specific intrusion point. It is also prone to misinterpreting occasional occurrences, such as birds approaching, as human presence, resulting in false alarms. It cannot achieve more refined identification and cannot provide users with more accurate intrusion information. Summary of the Invention

[0005] Therefore, it is necessary to provide an anti-intrusion electronic fence for nuclear power plants that can accurately locate intrusion sites, addressing the problems that existing fences cannot achieve more detailed identification effects and cannot provide users with more accurate intrusion information.

[0006] This invention provides an electronic fence for preventing intrusion into nuclear power plants that can accurately locate intrusion sites, comprising:

[0007] The physical fence layer includes multiple basic fence units, each basic fence unit comprising two frame members and multiple blocking members connecting them;

[0008] The sensing and detection layer includes multiple sets of sensing and detection units and a central control unit, used to detect whether there is intrusion behavior on the physical fence layer and to determine the intrusion location;

[0009] The blocking member includes a rod core and a soft shell sleeved thereon, with an installation gap between the rod core and the soft shell;

[0010] The sensing and detection unit includes:

[0011] The basic sensing assembly includes an inelastic rope-like sensing element located in the mounting gap, the sensing element being configured to be taut and suspended during installation;

[0012] The sensing response components are configured to be the same number as the frame components and are mounted on the frame components in a one-to-one correspondence;

[0013] A trigger circuit assembly is connected to the central control unit and uses the sensing response assembly as the trigger source.

[0014] The sensing response component includes:

[0015] The housing has two centrally symmetrical openings, which are configured to be on the same horizontal line during installation;

[0016] A reaction element is rotatably mounted inside the housing for responding to the action of the sensing element; the sensing element enters the housing through the opening and is connected to the reaction element.

[0017] A torsion spring, the two ends of which are respectively connected to the housing and the reaction element;

[0018] The sensing layer and the sensing element are configured as follows:

[0019] In the initial state, due to the action of the torsion spring, the sensing element is in a taut state and partially surrounds the reaction element, and the connection point between the sensing element and the reaction element is not aligned with the opening;

[0020] In the first state, the reactant is in a primary state, the trigger circuit assembly is triggered, and the central control unit begins to detect whether there is an intrusion.

[0021] In the second state, the reactant is in a secondary configuration, and the central control unit ultimately determines that an intrusion has occurred and the location of the intrusion.

[0022] The reaction element includes:

[0023] The outer core has an outer wall connected to the sensing element and an internal mounting cavity. A liquid-containing cavity for storing liquid is also provided in the upper region of the outer core, and the liquid-containing cavity is in communication with the mounting cavity.

[0024] The inner core is disposed within the mounting cavity. The outer wall of the inner core is in contact with the inner wall of the outer core, but the two can still rotate relative to each other. The inner core has a first accommodating cavity and a second accommodating cavity that are in communication with the outside. The bottom of the first accommodating cavity is provided with a first trigger switch, and the bottom of the second accommodating cavity is provided with a second trigger switch. The first trigger switch and the second trigger switch are respectively connected to the trigger circuit assembly.

[0025] In the initial state, the opening of the liquid-containing cavity is offset from the opening of the first accommodating cavity and the opening of the second accommodating cavity;

[0026] In the first state, the opening of the liquid-containing cavity aligns only with the opening of the first accommodating cavity, and the liquid portion in the liquid-containing cavity enters the first accommodating cavity and contacts the first trigger switch, thereby triggering the trigger circuit assembly.

[0027] In the second state, the opening of the liquid-containing cavity aligns only with the opening of the second accommodating cavity, and the liquid in the liquid-containing cavity enters the second accommodating cavity and contacts the second trigger switch, triggering the trigger circuit assembly again.

[0028] The first trigger switch / second trigger switch consists of a first disconnect point and a second disconnect point; the liquid in the liquid-containing cavity is a conductive liquid that can connect the first disconnect point and the second disconnect point; the trigger circuit assembly includes a signal trigger and an open circuit connected in series with the signal trigger, one open terminal of the open circuit is connected to the first disconnect point, and the other open terminal of the open circuit is connected to the second disconnect point.

[0029] Wherein, the first trigger switch / second trigger switch is a liquid sensor, and the trigger circuit assembly is a trigger circuit composed of signal triggers. The signal triggers are configured to receive and identify the signal generated by the liquid sensor and generate a trigger signal that can be identified by the central control unit.

[0030] The reaction element includes:

[0031] The outer core includes a matching first core and a second core, the outer walls of which are respectively connected to the sensing element;

[0032] The inner core includes a matching third core and a fourth core, wherein the third core is embedded and fixed within the first core, and the fourth core is embedded and fixed within the second core; both the third core and the fourth core are electromagnets.

[0033] The trigger circuit assembly includes an angle sensor and a pressure trigger, the angle sensor being disposed on the outer core and the pressure trigger being disposed on the inner surface of the housing;

[0034] The central control unit is configured to receive and identify signals generated by the angle sensor and signals generated by the pressure trigger.

[0035] In the initial state, the first core and the second core are in a combined state, and the third core and the fourth core are in a combined state;

[0036] In the first state, the angle sensor detects that the outer core has rotated to a preset angle value, and the central control unit controls the third core and the fourth core to be de-energized, so that the third core and the fourth core are in a state of imminent separation under the traction of the sensing element;

[0037] In the second state, the first core and the second core are in a separated state, the third core and the fourth core are in a separated state, the first core or the second core contacts and squeezes the pressure trigger, and the trigger circuit assembly is triggered.

[0038] The pressure trigger includes a spring and a pressure sensor; one end of the spring is connected to the pressure sensor, and the other end is connected to the inner surface of the housing.

[0039] The pressure triggering element is four in number and symmetrically distributed in pairs; two of the pressure sensors are opposite to the outer surface of the first core, and the other two pressure sensors are opposite to the outer surface of the second core.

[0040] The reaction element is provided with a rotating shaft between the reaction element and the housing, and the torsion spring is sleeved on the rotating shaft. The reaction element is rotatably connected to the housing through the rotating shaft.

[0041] The outer wall of one end of the housing is provided with a mounting part, and the sensing and detection unit is fixedly connected to the frame member through the mounting part.

[0042] The electronic fence for preventing intrusion into nuclear power plants, capable of accurately locating intrusion sites, also includes a video monitoring layer connected to the central control unit. This video monitoring layer comprises multiple camera devices mounted on the frame components, with each device corresponding to one of the frame components. The video monitoring layer is configured as follows:

[0043] When an intrusion is detected, the central control unit will control the nearest camera device to start collecting video footage from the vicinity of the intrusion location.

[0044] The above technical solution has the following advantages or beneficial effects: In this invention, multiple sets of sensor detection units are installed one-to-one on the aforementioned multiple basic fence units to detect the status information on the basic fence units and transmit the detected status information to the central control unit. The central control unit determines whether there is an intrusion behavior based on these status information. If it is determined that there is an intrusion behavior in one of the status information, the corresponding sensor detection unit that issued this status information is locked. Since the sensor detection units are set up one-to-one with the basic fence units, the basic fence unit with the intrusion behavior can be determined based on the locked sensor detection units, thereby finally determining the intrusion location. This solves the problems of existing fences being unable to achieve more detailed identification effects and unable to provide users with more accurate intrusion information. Attached Figure Description

[0045] Figure 1 This is a simplified structural diagram of the basic fence unit in the anti-intrusion electronic fence for nuclear power plants that can accurately locate intrusion sites according to the present invention;

[0046] Figure 2 This is a block diagram of the circuit connection structure of the electronic fence for an anti-intrusion nuclear power plant that can accurately locate the intrusion site according to the present invention;

[0047] Figure 3 This is a schematic diagram illustrating the execution steps of the electronic fence for an anti-intrusion nuclear power plant that can accurately locate intrusion sites according to the present invention.

[0048] Figure 4 This is a schematic diagram of a partial installation of the electronic fence for an anti-intrusion nuclear power plant that can accurately locate the intrusion site according to the present invention.

[0049] Figure 5 This is a schematic diagram of the sensor response component in the electronic fence of an anti-intrusion nuclear power plant that can accurately locate the intrusion site according to the present invention, in an initial state in one embodiment.

[0050] Figure 6 This is a schematic diagram of the sensing and response components in the electronic fence of an anti-intrusion nuclear power plant that can accurately locate the intrusion site according to the present invention, in a first state in one embodiment.

[0051] Figure 7 This is a schematic diagram of the sensing and response components in the electronic fence of an anti-intrusion nuclear power plant that can accurately locate the intrusion site according to the present invention, in a second state in one embodiment;

[0052] Figure 8 This is a schematic diagram illustrating the execution steps of the anti-intrusion nuclear power plant electronic fence capable of accurately locating intrusion sites in one embodiment of the present invention.

[0053] Figure 9This is a schematic diagram of the sensor response component in the intrusion-proof nuclear power plant electronic fence that can accurately locate the intrusion site according to the present invention, in its initial state in another embodiment.

[0054] Figure 10 This is a schematic diagram of the sensing and response components in the electronic fence of an anti-intrusion nuclear power plant that can accurately locate the intrusion site according to the present invention, in a first state in another embodiment;

[0055] Figure 11 This is a schematic diagram of the sensing and response components in the electronic fence of an anti-intrusion nuclear power plant that can accurately locate the intrusion site of the present invention, in a second state in another embodiment;

[0056] Figure 12 This is a schematic diagram illustrating the execution steps of the anti-intrusion nuclear power plant electronic fence capable of accurately locating intrusion sites according to another embodiment of the present invention.

[0057] Figure 13 This is a partial structural diagram of the sensing and response components in the anti-intrusion nuclear power plant electronic fence that can accurately locate the intrusion site according to the present invention.

[0058] Figure 14 This is a schematic diagram illustrating the operational steps of another embodiment of the electronic fence for an anti-intrusion nuclear power plant that can accurately locate intrusion sites according to the present invention.

[0059] Figure 15 This is a schematic diagram of the internal structure of the blocking component in the anti-intrusion electronic fence for nuclear power plants that can accurately locate the intrusion site according to the present invention.

[0060] The annotations in the attached figures are explained as follows:

[0061] 100. Physical fence layer; 110. Basic fence unit; 111. Frame component; 112. Blocking component; 113. Pole core; 114. Soft shell; 200. Sensor detection layer; 210. Sensor detection unit; 211. Basic sensor assembly; 212. Trigger circuit assembly; 213. Sensor response assembly; 214. Shell; 215. Torsion spring; 216. Response component; 217. Outer core; 218. Inner core; 220. Central control unit; 231. Liquid chamber; 232. First accommodating cavity; 233. Second accommodating cavity; 234. First trigger switch; 235. Second trigger switch; 236. First core; 237. Second core; 238. Third core; 239. Fourth core; 240. Pressure trigger component; 300. Video monitoring layer. Detailed Implementation

[0062] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the specific details described below are only a part of the embodiments of the present invention, and the present invention can be implemented in many other embodiments different from those described herein. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0063] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0065] like Figure 1 , Figure 2 As shown, this invention proposes an electronic fence for an anti-intrusion nuclear power plant that can accurately locate intrusion sites, comprising:

[0066] The physical fence layer 100 includes multiple basic fence units 110, which serve as basic physical barriers.

[0067] The sensing and detection layer 200 includes multiple sets of sensing and detection units 210 and a central control unit 220. The sensing and detection layer 200 is set on the physical fence layer 100 and is used to detect whether there is an intrusion and to determine the location of the intrusion.

[0068] Based on the structure and function of the physical fence layer 100 and the sensing and detection layer 200, such as Figure 3 As shown, the electronic fence for preventing intrusion into nuclear power plants, which can accurately locate the intrusion site according to the present invention, performs the following steps during operation:

[0069] Step S100: Obtain the status information of physical fence layer 100;

[0070] Step S200: Determine whether an intrusion has occurred based on the status information;

[0071] Step S300: If an intrusion occurs, determine the location of the intrusion.

[0072] Specifically, in this embodiment, multiple sets of sensor detection units 210 are installed one-to-one on the aforementioned multiple basic fence units 110 to detect the status information on the basic fence units 110 and transmit the detected status information to the central control unit 220. The central control unit 220 determines whether there is an intrusion based on this status information. If it determines that there is an intrusion in one of the status information, it locks the sensor detection unit 210 that sent the status information. Since the sensor detection units 210 and the basic fence units 110 are set up in a one-to-one correspondence, the basic fence unit 110 where the intrusion occurs can be determined based on the locked sensor detection unit 210, thereby finally determining the intrusion location.

[0073] The status information of the physical fence layer 100 includes information on the external forces acting on the physical fence layer 100, as well as the numbering information of the sensor detection unit 210 and the basic fence unit 110 that are matched one-to-one.

[0074] like Figure 1 As shown, the aforementioned basic fence unit 110 includes:

[0075] A fence frame assembly, comprising two frame members 111 that are in a vertical position during installation;

[0076] The fence blocking assembly includes multiple blocking members 112 that are horizontal during installation, with two frame members 111 fixedly connected to each end of the blocking member 112.

[0077] To facilitate understanding, the following is an excerpt from the physical fence layer 100 for explanation.

[0078] like Figure 4 As shown, in this embodiment, one end cut from the physical fence layer 100 includes four frame members 111. Two adjacent frame members 111 are connected together by multiple blocking members 112 in their middle part to form a basic fence unit 110. For ease of explanation, the four basic fence units 110 are numbered A, B, C, and D, and the corresponding sensing and detection units 210 are numbered a, b, c, and d.

[0079] Specifically, in the embodiment, the sensing and detection units 210a, b, c, and d on the basic fence units 110A, B, C, and D are used to detect the status information on the corresponding basic fence unit 110, and transmit the four status information messages Ma, Mb, Mc, and Md to the central control unit 220. The central control unit 220 determines whether there is intrusion behavior information based on these status information. If it is determined that there is intrusion behavior information in one of the four status information messages Ma, Mb, Mc, and Md, the corresponding sensing and detection unit 210 that sent the status information is locked. Then, based on the locked sensing and detection unit 210, the basic fence unit 110 with intrusion behavior can be determined, thereby finally determining the intrusion location.

[0080] Specifically, in the embodiment, if there is intrusion behavior information in the state information Ma among the four state information such as Ma, Mb, Mc, and Md, the corresponding sensor detection unit 210a that issued the state information Ma is locked. Then, based on the locked sensor detection unit 210a, it can be determined that the intrusion behavior is near the basic fence unit 110A, thereby determining the intrusion location.

[0081] like Figure 15 As shown, the aforementioned blocking member 112 includes a rod core 113 and a soft housing 214114 sleeved on the rod core 113, with an installation gap between the rod core 113 and the soft housing 214114.

[0082] Among them, the core pole 113 is made of rigid material, which can be understood as steel bars or steel pipes. It mainly plays the core physical barrier role, preventing intruders from breaking through the fence.

[0083] The soft shell 214114 can be understood as a soft plastic outer layer wrapped around the core 113. When this soft plastic outer layer is subjected to external force, i.e., when an intruder grasps it, the part of the soft plastic outer layer that is grasped by the intruder will deform towards the core 113. There is an installation gap between the core 113 and the soft shell 214114, firstly to provide deformation space for the soft shell 214114, and secondly to provide installation space for other components that need to be installed between the core 113 and the soft shell 214114.

[0084] like Figure 2 As shown, the aforementioned sensing and detection unit 210 includes:

[0085] The basic sensing assembly 211 includes an inelastic rope-like sensing element located in the installation gap, the sensing element being configured to be taut and suspended above the rod core 113 during installation;

[0086] The sensing response components 213 are configured to be the same number as the frame components 111 and are mounted on the frame components 111 in a one-to-one correspondence.

[0087] The trigger circuit assembly 212 is connected to the central control unit 220 and uses the sensing response assembly 213 as the trigger source.

[0088] Based on the structure and function of the aforementioned sensing and detection unit 210, when the electronic fence for preventing intrusion into nuclear power plants, capable of accurately locating intrusion sites, is in operation, the sensing and detection unit 210 will perform the following steps:

[0089] Step S110: The sensing element deforms in response to the external force;

[0090] Step S120: The sensing response assembly 213 responds to the deformation response of the sensing element;

[0091] Step S130: Trigger circuit component 212 generates a trigger signal according to the response of sensing response component 213.

[0092] The trigger signal generated by the trigger circuit component 212 can be understood as the physical fence layer 100 status information. When the trigger signal is transmitted to the central control unit 220, the acquisition of the physical fence layer 100 status information in step S100 is realized.

[0093] Specifically, in the embodiment, multiple sets of sensing and detection units 210 are installed one-to-one on the aforementioned multiple basic fence units 110. When an intruder grasps the blocking member 112, the rope-like sensing member inside, which is in a taut and suspended state, will be subjected to external force and deform. This deformation will trigger the sensing response component 213 connected to the sensing member to respond. Subsequently, this response will act as a trigger source to cause the trigger circuit component 212 to generate a trigger signal. After the trigger signal is transmitted to the central control unit, the central control unit 220 can determine that there is an intrusion and lock the source of the trigger signal, identify the trigger circuit component 212 that issued the trigger signal, and thus finally determine the intrusion location.

[0094] like Figure 5 , Figure 6 , Figure 7 and Figure 13 As shown, the aforementioned sensing response component 213 includes:

[0095] The housing 214 has two centrally symmetrical openings, which are configured to be on the same horizontal line during installation.

[0096] The reaction element 216 is rotatably mounted inside the housing 214 and is used to respond to the action of the sensing element; the sensing element enters the housing 214 through an opening and is connected to the reaction element 216.

[0097] A torsion spring 215, the two ends of which are connected to the housing 214 and the reaction element 216, respectively;

[0098] The sensing layer 200 and the sensing element are configured as follows:

[0099] In the initial state, due to the action of the torsion spring 215, the sensor is in a taut state and partially wraps around the reaction element 216, and the connection point between the sensor and the reaction element 216 is not aligned with the opening.

[0100] In the first state, the reactant 216 is in the primary state, the trigger circuit assembly 212 is triggered, and the central control unit 220 begins to detect whether there is an intrusion.

[0101] In the second state, the reaction element 216 is in a secondary state, and the central control unit 220 finally determines that there is an intrusion and the location of the intrusion.

[0102] Specifically, in the embodiment, multiple sets of sensing and detection units 210 are installed on the multiple basic fence units 110 in a one-to-one correspondence. When no external force is applied, the sensing element is in a taut state and partially surrounds the reaction element 216 under the action of the torsion spring 215. The connection point between the sensing element and the reaction element 216 is not aligned with the opening.

[0103] When an intruder grasps the barrier 112, the taut and suspended rope-like sensor inside is subjected to external force and deforms. This deformation triggers a response from the sensor-response component 213 connected to the sensor. When the response reaches a first preset condition, the trigger circuit component 212 is activated and begins operation; when the response reaches a second preset condition, the trigger circuit component 212 generates a trigger signal. After the trigger signal is transmitted to the central control unit 220, it can determine that an intrusion has occurred, pinpoint the source of the trigger signal, identify the trigger circuit component 212 that issued the trigger signal, and thus ultimately determine the location of the intrusion.

[0104] like Figure 5 , Figure 6 , Figure 7 As shown, the above-mentioned reaction element 216 includes;

[0105] The outer core 217 has an outer wall connected to the sensing element and an internal mounting cavity. The upper region of the outer core 217 also has a liquid-containing cavity 231 that stores liquid, and the liquid-containing cavity 231 is connected to the mounting cavity.

[0106] The inner core 218 is located inside the mounting cavity. The outer wall of the inner core 218 is in contact with the inner wall of the outer core 217, but the two can still rotate relative to each other. The inner core 218 has a first accommodating cavity 232 and a second accommodating cavity 233 that are in communication with the outside. The bottom of the first accommodating cavity 232 is provided with a first trigger switch 234, and the bottom of the second accommodating cavity 233 is provided with a second trigger switch 235. The first trigger switch 234 and the second trigger switch 235 are respectively connected to the trigger circuit assembly 212.

[0107] In the initial state, the opening of the liquid-containing cavity 231 is offset from the opening of the first accommodating cavity 232 and the opening of the second accommodating cavity 233.

[0108] In the first state, the opening of the liquid-containing cavity 231 is aligned with the opening of the first accommodating cavity 232. The liquid portion in the liquid-containing cavity 231 enters the first accommodating cavity 232 and contacts the first trigger switch 234, triggering the trigger circuit assembly 212.

[0109] In the second state, the opening of the liquid-containing cavity 231 is aligned with the opening of the second accommodating cavity 233. The liquid in the liquid-containing cavity 231 enters the second accommodating cavity 233 and contacts the second trigger switch 235, triggering the trigger circuit assembly 212 again.

[0110] Based on the structure and function of the aforementioned reactant 216, such as Figure 8 As shown, when the electronic fence for preventing intrusion into a nuclear power plant, which can accurately locate the intrusion site, is in operation, the reaction element 216 will perform the following steps:

[0111] Step S121: Trigger circuit component 212 detects whether the first trigger switch 234 is triggered;

[0112] Step S122: Trigger circuit component 212 detects whether the second trigger switch 235 is triggered;

[0113] Step S123: Based on the two detection results of the trigger circuit component 212, determine whether there is an intrusion.

[0114] Specifically, if the trigger circuit component 212 detects that both the first trigger switch 234 and the second trigger switch 235 are triggered, the central control unit 220 determines that an intrusion has occurred. If the trigger circuit component 212 detects that both the first trigger switch 234 are triggered, but the second trigger switch 235 is not triggered, the central control unit 220 determines that no intrusion has occurred. This scheme can eliminate some interference from random external forces and improve the accuracy of identification.

[0115] Specifically, in the embodiments, such as Figure 5As shown, when no external force is applied, the sensing element is in a taut state and partially surrounds the reaction element 216 under the action of the torsion spring 215. The connection point between the sensing element and the reaction element 216 is not aligned with the opening. The opening of the liquid cavity 231 is misaligned with the opening of the first accommodating cavity 232 and the opening of the second accommodating cavity 233.

[0116] When an intruder grasps the blocking element 112, the taut and suspended rope-like sensing element inside it is subjected to external force and deforms. This deformation triggers a response from the sensing reaction component 213 connected to the sensing element. The aforementioned deformation is that the taut rope-like sensing element bends, pulling the outer core 217 connected to its two ends to rotate.

[0117] When the outer core 217 rotates, the opening of the liquid-containing cavity 231 gradually approaches the opening of the first receiving cavity 232. When the opening of the liquid-containing cavity 231 rotates to align with the opening of the first receiving cavity 232, as... Figure 6 As shown, due to its own weight, the liquid portion in the liquid-containing cavity 231 will enter the first accommodating cavity 232 and come into contact with the first trigger switch 234. The trigger circuit component 212 is triggered for the first time to generate a trigger signal, and the central control unit 220 initially determines that there is an intrusion.

[0118] If the sensing element continues to be subjected to force, the outer core 217 will continue to rotate under its traction. The opening of the liquid-containing cavity 231 will gradually move away from the opening of the first receiving cavity 232 and closer to the opening of the second receiving cavity 233. When the opening of the liquid-containing cavity 231 rotates to the point where its opening aligns with the opening of the second receiving cavity 233, ... Figure 7 As shown, due to its own weight, the liquid in the liquid-containing cavity 231 will enter the second accommodating cavity 233 and come into contact with the second trigger switch 235. The trigger circuit component 212 is triggered for the second time to generate a trigger signal, and the central control unit 220 finally determines that there is an intrusion.

[0119] If the central control unit 220 initially determines that there is an intrusion, the sensor will no longer be subjected to force, the outer core 217 will be reset under the action of the torsion spring 215, the opening of the liquid cavity 231 will gradually leave the opening of the first accommodating cavity 232 and move away from the opening of the second accommodating cavity 233, the trigger circuit component 212 will not be triggered a second time, and the central control unit 220 will finally determine that there is no intrusion.

[0120] The first trigger switch 234 and the second trigger switch 235 mentioned above each consist of a first disconnect point and a second disconnect point. Of course, the first trigger switch 234 and the second trigger switch 235 mentioned above can also both be liquid sensors.

[0121] In one embodiment, the first trigger switch 234 / second trigger switch 235 consists of a first open circuit and a second open circuit. The liquid in the liquid-containing cavity 231 is a conductive liquid that can connect the first open circuit and the second open circuit; the trigger circuit assembly 212 includes an open circuit of a signal trigger and a series signal trigger, one open terminal of the open circuit is connected to the first open circuit, and the other open terminal of the open circuit is connected to the second open circuit.

[0122] When the opening of the liquid-containing cavity 231 rotates to align with the opening of the first accommodating cavity 232, due to its own weight, some of the liquid in the liquid-containing cavity 231 will enter the first accommodating cavity 232. This liquid is a conductive liquid, which will connect the first and second disconnect points, thereby making the open circuit where the signal trigger is located conduct. The signal trigger generates a trigger signal, which is received by the central control unit 220. The central control unit 220 initially determines that there is an intrusion.

[0123] When the opening of the liquid-containing cavity 231 rotates to align with the opening of the second accommodating cavity 233, the liquid in the liquid-containing cavity 231 will enter the second accommodating cavity 233 due to its own weight. This liquid is a conductive liquid, which will connect the first and second disconnect points, thereby making the open circuit where the signal trigger is located conduct. The signal trigger will generate a trigger signal again, which will be received by the central control unit 220. The central control unit 220 will ultimately determine that there is an intrusion.

[0124] In another embodiment, the first trigger switch 234 / second trigger switch 235 described above is a liquid sensor, and the trigger circuit assembly 212 is a trigger circuit composed of a signal trigger, which is configured to receive and identify the signal generated by the liquid sensor and generate a trigger signal that can be identified by the central control unit 220.

[0125] When the opening of the liquid-containing cavity 231 rotates to align with the opening of the first accommodating cavity 232, due to its own weight, some of the liquid in the liquid-containing cavity 231 will enter the first accommodating cavity 232. This liquid will be detected by the liquid sensor and will output a signal to the signal trigger. The signal trigger will generate a trigger signal, which will be received by the central control unit 220. The central control unit 220 will initially determine that there is an intrusion.

[0126] When the opening of the liquid-containing cavity 231 rotates to align with the opening of the second accommodating cavity 233, the liquid in the liquid-containing cavity 231 will enter the second accommodating cavity 233 due to its own weight. This liquid will be detected by the liquid sensor and a signal will be output to the signal trigger. The signal trigger will generate a trigger signal again, which will be received by the central control unit 220. The central control unit 220 will ultimately determine that there is an intrusion.

[0127] like Figure 9 , Figure 10 , Figure 11 As shown, the above-mentioned reaction element 216 includes:

[0128] The outer core 217 includes a matching first core 236 and a second core 237, the outer walls of the first core 236 and the second core 237 being connected to the sensing element respectively;

[0129] The inner core 218 includes a matching third core 238 and a fourth core 239. The third core 238 is embedded and fixed inside the first core 236, and the fourth core 239 is embedded and fixed inside the second core 237. Both the third core 238 and the fourth core 239 are electromagnets.

[0130] The trigger circuit assembly 212 includes an angle sensor and a pressure trigger 240. The angle sensor is disposed on the outer core 217, and the pressure trigger 240 is disposed on the inner surface of the housing 214.

[0131] The central control unit 220 is configured to receive signals generated by the identification angle sensor and signals generated by the pressure trigger 240;

[0132] In the initial state, the first core 236 and the second core 237 are in a combined state, and the third core 238 and the fourth core 239 are in a combined state.

[0133] In the first state, the angle sensor detects that the outer core 217 has rotated to a preset angle value, and the central control unit 220 controls the third core 238 and the fourth core 239 to be de-energized, causing the third core 238 and the fourth core 239 to be in a state of imminent separation under the traction of the sensing element.

[0134] In the second state, the first core 236 and the second core 237 are in a separated state, the third core 238 and the fourth core 239 are in a separated state, the first core 236 or the second core 237 contacts and squeezes the pressure trigger 240, and the trigger circuit assembly 212 is triggered.

[0135] Based on the structure and function of the aforementioned reactant 216, such as Figure 12 As shown, when the electronic fence for preventing intrusion into a nuclear power plant, which can accurately locate the intrusion site, is in operation, the reaction element 216 will perform the following steps:

[0136] Step S124: Trigger circuit assembly 212 detects whether the rotation angle of outer core 217 has reached the preset angle value;

[0137] Step S125: Trigger circuit assembly 212 detects whether the pressure trigger 240 is contacted and squeezed;

[0138] Step S126: Based on the two detection results of the trigger circuit component 212, determine whether there is an intrusion.

[0139] Specifically, if the trigger circuit assembly 212 detects that the outer core 217 has rotated to a preset angle value and the pressure trigger 240 is contacted and pressed, the central control unit 220 determines that an intrusion has occurred. If the trigger circuit assembly 212 detects that the outer core 217 has rotated to a preset angle value, or if the outer core 217 has rotated to a preset angle value but the pressure trigger 240 is not contacted and pressed, the central control unit 220 determines that no intrusion has occurred. This scheme can eliminate some interference from random external forces and improve the accuracy of identification.

[0140] Specifically, in the embodiments, such as Figure 9 As shown, when no external force is applied, under the action of the torsion spring 215, the sensing element is in a taut state and partially surrounds the reaction element 216. The connection point between the sensing element and the reaction element 216 is not aligned with the opening. The first core 236 and the second core 237 are in a combined state, and the third core 238 and the fourth core 239 are in a combined state.

[0141] When an intruder grasps the blocking element 112, the taut and suspended rope-like sensing element inside it is subjected to external force and deforms. This deformation triggers a response from the sensing reaction component 213 connected to the sensing element. The aforementioned deformation is that the taut rope-like sensing element bends, pulling the outer core 217 connected to its two ends to rotate.

[0142] When the outer core 217 rotates, the angle sensor detects the change in the rotation angle of the outer core 217, such as... Figure 10 As shown, when the outer core 217 rotates to a preset angle value, the central control unit 220 initially determines that there is an intrusion. Subsequently, under the action of the central control unit 220, the third core 238 and the fourth core 239, which are electromagnets, are de-energized or the current is reduced, causing them to lose their magnetic attraction to each other, or greatly weakening their magnetic attraction to each other, so that the third core 238 and the fourth core 239 can no longer maintain the attracted state under the action of traction force.

[0143] If the sensing element continues to be subjected to force, such as Figure 11 As shown, under the traction, the third core 238 and the fourth core 239, which could not maintain the attraction state, will completely separate. The first core 236 or the second core 237 will approach and contact the pressure trigger 240 located on its side under the traction of the sensor. The trigger circuit assembly 212 is triggered, and the central control unit 220 finally determines that there is an intrusion.

[0144] like Figure 9 As shown, there are four pressure triggers 240, symmetrically distributed in pairs; two of the pressure sensors face the outer surface of the first core 236, and the other two pressure sensors face the outer surface of the second core 237. Specifically, in this embodiment, the first core 236 or the second core 237, under the traction of the sensors, will approach and contact the two pressure triggers 240 located on its side, triggering the trigger circuit assembly 212, and the central control unit 220 will ultimately determine that an intrusion has occurred.

[0145] Among them, such as Figure 9 As shown, the pressure trigger 240 includes a spring and a pressure sensor; one end of the spring is connected to the pressure sensor, and the other end is connected to the inner surface of the housing 214.

[0146] like Figure 13 As shown, a rotating shaft is provided between the reaction element 216 and the housing 214, and a torsion spring 215 is sleeved on the rotating shaft. The reaction element 216 is rotatably connected to the housing 214 through the rotating shaft.

[0147] The outer wall of one end of the housing 214 is provided with a mounting part, and the sensing and detection unit 210 is fixedly connected to the frame member 111 through the mounting part.

[0148] The mounting part can be an external ear extending from the outer wall of the housing 214. The external ear has a screw hole for the nut to pass through and be screwed into the screw hole on the frame member 111, thereby fixing the sensing unit 210 on the frame member 111.

[0149] like Figure 2 As shown, the aforementioned electronic fence for preventing intrusion into nuclear power plants, capable of accurately locating intrusion sites, also includes a video monitoring layer 300 connected to the central control unit 220. The video monitoring layer 300 includes multiple camera devices mounted on the frame members 111, with each device corresponding to one of the frame members 111. The video monitoring layer 300 is configured as follows:

[0150] When an intrusion is detected, the central control unit 220 will control the nearest camera device to start collecting video footage from the vicinity of the intrusion location.

[0151] Based on the structure and function of the video surveillance layer 300 mentioned above, such as Figure 14 As shown, the electronic fence for preventing intrusion into nuclear power plants, which can accurately locate the intrusion site according to the present invention, performs the following steps during operation:

[0152] Step S100: Obtain the status information of physical fence layer 100;

[0153] Step S200: Determine whether an intrusion has occurred based on the status information;

[0154] Step S300: If an intrusion occurs, determine the location of the intrusion;

[0155] Step S400: Based on the intrusion location, issue an execution command to drive the camera device at the corresponding location to collect video footage information from its vicinity.

[0156] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0157] Furthermore, the above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications, substitutions, and improvements without departing from the concept of the present invention, and these should all be covered within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the claims.

Claims

1. An anti-intrusion electronic fence for nuclear power plants capable of accurately locating intrusion sites, characterized in that, include: The physical fence layer includes multiple basic fence units, each basic fence unit comprising two frame members and multiple blocking members connecting them; The sensing and detection layer includes multiple sets of sensing and detection units and a central control unit, which are used to detect whether there is intrusion behavior in the physical fence layer and to determine the intrusion point; The blocking member includes a rod core and a soft shell sleeved thereon, with an installation gap between the rod core and the soft shell; The sensing and detection unit includes: The basic sensing assembly includes an inelastic rope-like sensing element located in the mounting gap, the sensing element being configured to be taut and suspended during installation; The sensing response components are configured to be the same number as the frame components and are mounted on the frame components in a one-to-one correspondence; A trigger circuit assembly is connected to the central control unit and uses the sensing response assembly as the trigger source. The sensing response assembly includes a housing, a response element, and a torsion spring. The housing has two centrally symmetrical openings, which are configured to be located on the same horizontal line during installation. The reactive element is rotatably mounted inside the housing and is used to respond to the action of the sensing element; the sensing element enters the housing through the opening and is connected to the reactive element. The two ends of the torsion spring are respectively connected to the housing and the reaction element; The sensing layer and the sensing element are configured as follows: In the initial state, due to the action of the torsion spring, the sensing element is in a taut state and partially surrounds the reaction element, and the connection point between the sensing element and the reaction element is not aligned with the opening; In the first state, the reactant is in a primary state, the trigger circuit assembly is triggered, and the central control unit begins to detect whether there is an intrusion. In the second state, the reactant is in a secondary configuration, and the central control unit ultimately determines that an intrusion has occurred and the location of the intrusion.

2. The electronic fence for an anti-intrusion nuclear power plant capable of accurately locating intrusion sites according to claim 1, characterized in that, The reaction element includes; The outer core has an outer wall connected to the sensing element and an internal mounting cavity. A liquid-containing cavity for storing liquid is also provided in the upper region of the outer core, and the liquid-containing cavity is in communication with the mounting cavity. The inner core is disposed within the mounting cavity. The outer wall of the inner core is in contact with the inner wall of the outer core, but the two can still rotate relative to each other. The inner core has a first accommodating cavity and a second accommodating cavity that are in communication with the outside. The bottom of the first accommodating cavity is provided with a first trigger switch, and the bottom of the second accommodating cavity is provided with a second trigger switch. The first trigger switch and the second trigger switch are respectively connected to the trigger circuit assembly. In the initial state, the opening of the liquid-containing cavity is offset from the opening of the first accommodating cavity and the opening of the second accommodating cavity; In the first state, the opening of the liquid-containing cavity aligns only with the opening of the first accommodating cavity, and the liquid portion in the liquid-containing cavity enters the first accommodating cavity and contacts the first trigger switch, thereby triggering the trigger circuit assembly. In the second state, the opening of the liquid-containing cavity aligns only with the opening of the second accommodating cavity, and the liquid in the liquid-containing cavity enters the second accommodating cavity and contacts the second trigger switch, triggering the trigger circuit assembly again.

3. The electronic fence for an anti-intrusion nuclear power plant capable of accurately locating intrusion sites according to claim 2, characterized in that, The first trigger switch / second trigger switch consists of a first disconnect point and a second disconnect point; the liquid in the liquid-containing cavity is a conductive liquid that can connect the first disconnect point and the second disconnect point; the trigger circuit assembly includes a signal trigger and an open circuit connected in series with the signal trigger, one open terminal of the open circuit is connected to the first disconnect point, and the other open terminal of the open circuit is connected to the second disconnect point.

4. The electronic fence for an anti-intrusion nuclear power plant capable of accurately locating intrusion sites according to claim 2, characterized in that, The first trigger switch / second trigger switch is a liquid sensor, and the trigger circuit assembly is a trigger circuit composed of signal triggers. The signal triggers are configured to receive and identify the signal generated by the liquid sensor and generate a trigger signal that can be identified by the central control unit.

5. The electronic fence for an anti-intrusion nuclear power plant capable of accurately locating intrusion sites according to claim 1, characterized in that, The reaction element includes: The outer core includes a matching first core and a second core, the outer walls of which are respectively connected to the sensing element; The inner core includes a matching third core and a fourth core, wherein the third core is embedded and fixed within the first core, and the fourth core is embedded and fixed within the second core; both the third core and the fourth core are electromagnets. The trigger circuit assembly includes an angle sensor and a pressure trigger, the angle sensor being disposed on the outer core and the pressure trigger being disposed on the inner surface of the housing; The central control unit is configured to receive and identify signals generated by the angle sensor and signals generated by the pressure trigger. In the initial state, the first core and the second core are in a combined state, and the third core and the fourth core are in a combined state; In the first state, the angle sensor detects that the outer core has rotated to a preset angle value, and the central control unit controls the third core and the fourth core to be de-energized, so that the third core and the fourth core are in a state of imminent separation under the traction of the sensing element; In the second state, the first core and the second core are in a separated state, the third core and the fourth core are in a separated state, the first core or the second core contacts and squeezes the pressure trigger, and the trigger circuit assembly is triggered.

6. The electronic fence for an anti-intrusion nuclear power plant capable of accurately locating intrusion sites according to claim 5, characterized in that, The pressure trigger includes a spring and a pressure sensor; one end of the spring is connected to the pressure sensor, and the other end is connected to the inner surface of the housing.

7. The electronic fence for an anti-intrusion nuclear power plant capable of accurately locating intrusion sites according to claim 6, characterized in that, The number of pressure triggers is four, and they are symmetrically distributed in pairs; two of the pressure sensors are opposite to the outer surface of the first core, and the other two pressure sensors are opposite to the outer surface of the second core.

8. The electronic fence for an anti-intrusion nuclear power plant capable of accurately locating intrusion sites according to claim 2 or 5, characterized in that, A rotating shaft is provided between the reaction element and the housing, and the torsion spring is sleeved on the rotating shaft. The reaction element is rotatably connected to the housing through the rotating shaft.

9. The electronic fence for an anti-intrusion nuclear power plant capable of accurately locating intrusion sites according to claim 8, characterized in that, It also includes a video monitoring layer connected to the central control unit. The video monitoring layer includes multiple camera devices mounted on the frame members, with each camera device corresponding to one of the frame members. The video monitoring layer is configured as follows: When an intrusion is detected, the central control unit will control the nearest camera device to start collecting video footage from the vicinity of the intrusion location.

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