CN117994910A - Anti-intrusion nuclear power station electronic fence capable of accurately positioning intrusion sites - Google Patents

Abstract

The invention provides an anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site, which comprises the following components: a physical fence layer including a plurality of base fence units for physical blocking of a base; the sensing detection layer comprises a plurality of sets of sensing detection units and a central control unit, and is arranged on the physical fence layer and used for detecting whether an intrusion behavior exists or not and determining an intrusion place. The sensing detection unit includes: a base sensing component, a sensing reaction component, a trigger circuit component, the sensing detection layer configured to: in a first state, the trigger circuit assembly is triggered, and the central control unit starts to detect whether intrusion behaviors exist; in the second state, the central control unit finally determines that an intrusion behavior exists and an intrusion location exists. Through the design, the invention solves the problems that the existing fence cannot realize a finer identification effect, cannot provide more accurate intrusion information for users and the like.

Description

Anti-intrusion nuclear power station electronic fence capable of accurately positioning intrusion sites

Technical Field

The invention relates to the technical field of fence security, in particular to an anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site.

Background

The fence is generally used around facilities such as factories, airports and nuclear power stations to prevent foreign personnel from entering illegally, but the common fence only has a basic physical interception function and cannot meet higher security level requirements, and aiming at the problem, the existing tension fence is improved.

For example, the prior art with publication number CN217426229U discloses an automatic alarm device for the perimeter of an electronic fence, wherein an alarm device is fixedly installed at the top of a main pole of the fence, an infrared emitter is fixedly installed on the main pole, an infrared receiver is fixedly installed on an auxiliary pole, a pyroelectric sensor for detecting whether a person approaches the fence is fixedly installed on a fence board, an alarm device store is connected with the infrared receiver and the pyroelectric sensor, and when the person approaches the fence board, the alarm device is electrified to send out a pre-alarm signal.

However, this prior art still has drawbacks in that the infrared transmitter and infrared receiver detect whether a person is approaching the fence is based on the principle of whether the infrared receiver has received a signal from the infrared transmitter. However, it can only roughly judge whether a person approaches the fence by whether a barrier exists between the infrared transmitter and the infrared receiver, but cannot further determine a more specific invasion point, and easily misjudge some sporadic conditions such as birds approaching as that a person approaches the fence to generate misinformation, so that a more detailed identification effect cannot be realized, and more accurate invasion information cannot be provided for users.

Disclosure of Invention

Based on the above, it is necessary to provide an anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site, aiming at the problems that the existing fence cannot realize a finer identification effect and cannot provide more accurate intrusion information for users.

The invention provides an anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site, which comprises the following components:

a physical fence layer comprising a plurality of base fence units, the base fence units comprising two frame members and a plurality of barriers connecting them;

the sensing detection layer comprises a plurality of sets of sensing detection units and a central control unit and is used for detecting whether an intrusion behavior exists on the physical fence layer or not and determining an intrusion place;

the blocking piece comprises a rod core and a soft shell sleeved on the rod core, and an installation gap exists between the rod core and the soft shell;

The sensing detection unit includes:

a base sensing assembly comprising an inelastic string-like sensing piece located in the mounting gap, the sensing piece being configured to be in a taut and suspended state upon installation;

the sensing reaction assemblies are configured to be the same in number as the frame pieces and are installed on the frame pieces in a one-to-one correspondence manner;

And the trigger circuit component is connected with the central control unit and takes the sensing reaction component as a trigger source.

Wherein, the sensing reaction assembly includes:

A housing having two openings formed therein that are centrally symmetrical, the two openings being configured to be positioned on the same horizontal line when installed;

The reaction piece is rotatably arranged in the shell and is used for reacting to the action of the sensing piece; the sensing piece enters the shell through the opening and is connected with the reaction piece;

the two ends of the torsion spring are respectively connected with the shell and the reaction piece;

the sensing layer and the sensing element are configured to:

In an initial state, the sensing piece is in a stretched state and partially surrounds the reaction piece under the action of the torsion spring, and the connection point of the sensing piece and the reaction piece is not aligned with the opening;

In a first state, the reaction member is in a primary form, the trigger circuit assembly is triggered, and the central control unit starts to detect whether an intrusion behavior exists;

in the second state, the reaction member is in a secondary form, and the central control unit finally determines that an intrusion behavior exists and an intrusion site exists.

Wherein the reaction member comprises;

The outer wall of the outer core is connected with the sensing piece, an installation cavity is formed in the outer core, a liquid containing cavity for storing liquid is further formed in the upper area of the outer core, and the liquid containing cavity is communicated with the installation cavity;

The inner core is arranged in the mounting cavity, and the outer wall of the inner core is attached to the inner wall of the outer core but can still rotate relatively; the inner core is provided with a first accommodating cavity and a second accommodating cavity which are communicated with the outside, the bottom of the first accommodating cavity is provided with a first trigger switch, the bottom of the second accommodating cavity is provided with a second trigger switch, and the first trigger switch and the second trigger switch are respectively connected with the trigger circuit component;

in the initial state, the opening of the liquid containing cavity is staggered from the opening of the first containing cavity and the opening of the second containing cavity;

In a first state, the opening of the liquid containing cavity is only opposite to the opening of the first containing cavity, the liquid part in the liquid containing cavity enters the first containing cavity and contacts with the first trigger switch, and the trigger circuit component is triggered;

In the second state, the opening of the liquid containing cavity is only opposite to the opening of the second containing cavity, the liquid in the liquid containing cavity enters the second containing cavity and contacts with the second trigger switch, and the trigger circuit assembly is triggered again.

The first trigger switch/the second trigger switch consists of a first breaking point and a second breaking point; the liquid in the liquid containing cavity is conductive liquid capable of communicating the first breaking point and the second breaking point; the trigger circuit assembly comprises a signal trigger and an open circuit connected with the signal trigger in series, wherein one open end of the open circuit is connected with the first disconnection point, and the other open end of the open circuit is connected with the second disconnection point.

The first trigger switch/the second trigger switch are liquid sensors, the trigger circuit component is a trigger circuit composed of signal triggers, and the signal triggers are configured to receive signals generated by identifying the liquid sensors and generate trigger signals which can be identified by the central control unit.

Wherein the reaction member includes:

the outer core comprises a first core body and a second core body which are matched, and the outer walls of the first core body and the second core body are respectively connected with the sensing piece;

The inner core comprises a third core body and a fourth core body which are matched, the third core body is fixedly embedded in the first core body, and the fourth core body is fixedly embedded in the second core body; the third core body and the fourth core body are electromagnetic iron pieces;

the trigger circuit assembly comprises an angle sensor and a pressure trigger piece, the angle sensor is arranged on the outer core, and the pressure trigger piece is arranged on the inner surface of the shell;

the central control unit is configured to receive signals generated by the angle sensor and signals generated by the pressure trigger;

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

In a first state, the angle sensor detects that the rotating angle of the outer core reaches a preset angle value, and the central control unit controls the third core body and the fourth core body to be powered off so that the third core body and the fourth core body are in a state to be separated under the traction of the sensing piece;

In a second state, the first core body and the second core body are in a separated state, the third core body and the fourth core body are in a separated state, the first core body or the second core body is in contact with and presses the pressure trigger piece, and the trigger circuit component is triggered.

Wherein the pressure trigger comprises a spring and a pressure sensor; one end of the spring is connected with the pressure sensor, and the other end of the spring is connected with the inner surface of the shell.

The number of the pressure triggering pieces is four, and the pressure triggering pieces 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.

The reaction piece and the shell are provided with a rotating shaft piece therebetween, the torsion spring is sleeved on the rotating shaft piece, and the reaction piece is in rotary connection with the shell through the rotating shaft piece.

The sensor comprises a shell, a sensing detection unit and a frame piece, wherein an installation part is arranged on the outer wall of one end part of the shell, and the sensing detection unit is fixedly connected with the frame piece through the installation part.

The anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site further comprises a video monitoring layer connected with the central control unit, wherein the video monitoring layer comprises a plurality of shooting devices, the shooting devices are installed on the frame pieces, the number of the shooting devices corresponds to the frame pieces one by one, and the video monitoring layer is configured to:

When judging that the intrusion behavior exists, the central control unit can control the shooting device closest to the intrusion site to start to collect the nearby video picture information.

The technical scheme has the following advantages or beneficial effects: in the invention, a plurality of sets of sensing detection units are correspondingly and matchingly arranged on a plurality of base fence units one by one and are used for detecting state information on the base fence units and transmitting the detected multi-state information to the central control unit, the central control unit judges whether an intrusion behavior exists according to the state information, if the intrusion behavior exists in certain state information, the sensing detection units which correspond to the state information are locked, and because the sensing detection units are correspondingly and matchingly arranged with the base fence units one by one, the base fence units with the intrusion behavior can be determined according to the locked sensing detection units, thereby finally determining intrusion sites, and solving the problems that the existing fence cannot realize more detailed identification effect, cannot provide more accurate intrusion information for users and the like.

Drawings

FIG. 1 is a schematic diagram of a basic rail unit in an anti-intrusion nuclear power station electronic rail capable of accurately locating an intrusion site;

FIG. 2 is a block diagram of a circuit connection structure of an anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site;

FIG. 3 is a schematic diagram of the steps performed by the anti-intrusion nuclear power station electronic fence capable of accurately locating an intrusion site in the invention during operation;

FIG. 4 is a schematic view of a partially installed state of an anti-intrusion nuclear power station electronic fence capable of accurately locating an intrusion site according to the present invention;

FIG. 5 is a schematic structural view of a sensor reaction assembly in an anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to the present invention in an initial state in one embodiment;

FIG. 6 is a schematic structural view of a sensor reaction assembly in an anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to the present invention in a first state in one embodiment;

FIG. 7 is a schematic structural diagram of a sensor reaction assembly in an anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to the present invention in a second state in one embodiment;

FIG. 8 is a schematic diagram of the steps performed by the anti-intrusion nuclear power station electronic fence of the present invention in one embodiment to accurately locate an intrusion site;

FIG. 9 is a schematic structural view of a sensor reaction assembly in an anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to the present invention in an initial state in another embodiment;

FIG. 10 is a schematic structural view of a sensor reaction assembly in an anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to the present invention in a first state in another embodiment;

FIG. 11 is a schematic structural view of a sensor reaction assembly in an anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to the present invention in a second state in another embodiment;

FIG. 12 is a schematic diagram of the steps performed by the anti-intrusion nuclear power plant electronic fence of the present invention in operation in another embodiment to accurately locate an intrusion site;

FIG. 13 is a schematic view of a partial structure of a sensing reaction assembly in an anti-intrusion nuclear power station electronic fence capable of accurately locating an intrusion site according to the present invention;

FIG. 14 is a schematic diagram of the steps performed during operation in another embodiment of an anti-intrusion nuclear power plant electronic fence for accurately locating an intrusion site according to the present invention;

Fig. 15 is a schematic view showing an internal structure of a blocking member in an anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site according to the present invention.

The reference numerals are explained as follows:

100. A physical fence layer; 110. a base rail unit; 111. a frame member; 112. a blocking member; 113. a rod core; 114. a soft shell; 200. a sensing layer; 210. a sensing detection unit; 211. a base sensing assembly; 212. a trigger circuit assembly; 213. a sensing reaction component; 214. a housing; 215. a torsion spring; 216. a reaction member; 217. an outer core; 218. an inner core; 220. a central control unit; 231. a liquid containing cavity; 232. a first accommodation chamber; 233. a second accommodation chamber; 234. a first trigger switch; 235. a second trigger switch; 236. a first core; 237. a second core; 238. a third core; 239. a fourth core; 240. a pressure trigger; 300. and a video monitoring layer.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily apparent, a more particular description of the invention briefly described above will be rendered by reference to the appended drawings. It is apparent that the specific details described below are only some of the embodiments of the present invention and that the present invention may be practiced in many other embodiments that depart from those described herein. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present invention.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, 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 belongs. 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.

As shown in fig. 1 and 2, the present invention provides an anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site, which includes:

a physical fence layer 100 including a plurality of base fence units 110 for physical blocking of a base;

The sensing layer 200 includes a plurality of sensing units 210 and a central control unit 220, and the sensing layer 200 is disposed on the physical fence layer 100 and is used for detecting whether an intrusion behavior exists or not and determining an intrusion location.

Based on the structure and functions of the physical fence layer 100 and the sensing detection layer 200, as shown in fig. 3, the anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site of the present invention performs the following steps during operation:

step S100: acquiring state information of the physical fence layer 100;

step S200: judging whether an intrusion behavior exists according to the state information;

Step S300: if the intrusion behavior exists, determining the intrusion site.

In the embodiment, the plurality of sensor detection units 210 are installed on the plurality of base rail units 110 in a one-to-one matching manner, and are configured to detect state information on the base rail units 110, and transmit the detected state information to the central control unit 220, and the central control unit 220 determines whether an intrusion behavior exists according to the state information, if it is determined that an intrusion behavior exists in a certain state information, the corresponding sensor detection unit 210 sending the state information is locked, and since the sensor detection units 210 are installed in a one-to-one matching manner with the base rail units 110, the base rail unit 110 having the intrusion behavior can be determined according to the locked sensor detection unit 210, so that the intrusion location is finally determined.

The physical fence layer 100 status information includes information of an external force applied to the physical fence layer 100, and serial number information of the sensing unit 210 and the base fence unit 110, which are arranged in a one-to-one matching manner.

As shown in fig. 1, the base rail unit 110 includes:

a fence frame assembly comprising two frame members 111 in a vertical condition when mounted;

The fence blocking assembly comprises a plurality of blocking pieces 112 which are in a horizontal state during installation, and two ends of each blocking piece 112 are respectively and fixedly connected with two frame pieces 111.

For ease of understanding, a section of the physical fence layer 100 is cut out for illustration.

As shown in fig. 4, one end of the present embodiment, which is cut from the physical fence layer 100, includes four frame members 111, and two adjacent frame members 111 are connected together by a plurality of stoppers 112 at intermediate portions thereof to form a base fence unit 110. For convenience of description, the four base rail units 110 are sequentially numbered A, B, C, D, and the sensing units 210 corresponding one to one are sequentially numbered a, b, c, d.

In the embodiment, the sensing units 210 and a, b, c, d on the base rail units 110A, B, C, D are respectively configured to detect the state information on the corresponding base rail units 110, and transmit the detected four-state information such as Ma, mb, mc, md to the central control unit 220, where the central control unit 220 determines whether there is intrusion information according to the state information, and if it is determined that there is intrusion information in a certain state information in the four-state information such as Ma, mb, mc, md, the corresponding sensing unit 210 sending the state information is locked, and then the base rail unit 110 with intrusion can be determined according to the locked sensing unit 210, so as to determine the intrusion location finally.

In an embodiment, if intrusion behavior information exists in the state information of Ma in the four state information such as Ma, mb, mc, md, the corresponding sensing detection unit 210A sending the state information of Ma is locked, and then the proximity of the intrusion behavior foundation fence unit 110A can be determined according to the locked sensing detection unit 210A, so as to determine the intrusion location.

As shown in fig. 15, the stopper 112 includes a rod core 113 and a soft housing 214114 sleeved on the rod core 113, and an installation gap exists between the rod core 113 and the soft housing 214114.

The stem core 113 is made of a rigid material, which is understood to be a steel bar, a steel pipe, or the like, which mainly serves as a physical barrier for the core, preventing an intruder from breaking through the fence.

The soft shell 214114 is understood to be a soft plastic outer layer wrapped around the stem core 113, and when the soft plastic outer layer is gripped by an intruder, the portion gripped by the intruder deforms in a direction approaching the stem core 113. There is a mounting gap between the stem 113 and the soft shell 214114, one to leave room for deformation of the soft shell 214114, and the other to leave room for other components that need to be placed between the stem 113 and the soft shell 214114.

As shown in fig. 2, the above-mentioned sensing detection unit 210 includes:

A base sensing assembly 211 comprising an inelastic string-like sensing piece located in the mounting gap, the sensing piece configured to be in a taut state upon mounting and suspended from the stem core 113;

The sensing reaction components 213 configured to be identical in number to the frame members 111 and mounted on the frame members 111 in one-to-one correspondence;

the trigger circuit assembly 212 is connected to the central control unit 220, and uses the sensing response assembly 213 as a trigger source.

Based on the structure and the function of the sensing detection unit 210, the anti-intrusion nuclear power station electronic fence capable of accurately positioning the intrusion site of the present invention performs the following steps when in operation:

Step S110: the sensing piece makes deformation reaction to the external force;

Step S120: the sensing reaction component 213 reacts to the deformation reaction of the sensing element;

Step S130: the trigger circuit assembly 212 generates a trigger signal according to the response of the sensing response assembly 213.

The trigger signal generated by the trigger circuit assembly 212 can be understood as the state information of the physical fence layer 100, and when the trigger signal is transmitted to the central control unit 220, the state information of the physical fence layer 100 is obtained in step S100.

In an embodiment, the plurality of sensing units 210 are installed on the plurality of base rail units 110 in a one-to-one matching manner, when an intruder holds the blocking member 112, the rope-shaped sensing member in a stretched and suspended state is subjected to an external force and deformed, the deformation can trigger the sensing reaction component 213 connected with the sensing member to react, then the corresponding reaction can serve as a trigger source to make the trigger circuit component 212 generate a trigger signal, after the trigger signal is transmitted to the central control unit, the central control unit 220 can determine that an intrusion behavior exists and lock the source of the trigger signal, and determine the trigger circuit component 212 sending the trigger signal, thereby finally determining the intrusion location.

As shown in fig. 5, 6, 7 and 13, the sensing reaction module 213 includes:

a housing 214 having two openings formed therein that are centrally symmetrical, the two openings being configured to be positioned on the same horizontal line when installed;

A reaction member 216 rotatably mounted within the housing 214 for reacting to the motion of the sensing member; the sensing element enters the shell 214 through the opening and is connected with the reaction element 216;

a torsion spring 215, both ends of which are respectively connected with the housing 214 and the reaction piece 216;

the sensing layer 200 and sensing element are configured to:

in the initial state, due to the action of the torsion spring 215, the sensing element is in a tensed state and partially surrounds the reaction element 216, and the connection point of the sensing element and the reaction element 216 is not aligned with the opening;

in the first state, the reaction member 216 is in the primary configuration, the trigger circuit assembly 212 is triggered, and the central control unit 220 starts to detect whether an intrusion behavior exists;

In the second state, the reaction member 216 is in a secondary configuration and the central control unit 220 ultimately determines that there is intrusion activity and an intrusion site.

In particular, in the embodiment, the plurality of sensing units 210 are installed on the plurality of base rail units 110 in a one-to-one correspondence, and the sensing member is in a stretched state and partially surrounds the reaction member 216 under the action of the torsion spring 215 without receiving an external force, so that the connection point of the sensing member and the reaction member 216 is not aligned with the opening.

When an intruder holds the blocking member 112, the string-shaped sensing member in a stretched and suspended state is subjected to an external force and deformed, and the deformation induces the sensing reaction assembly 213 connected to the sensing member to react. When the response reaches the first preset condition, the trigger circuit component 212 is triggered and starts to operate; when the response reaches the second predetermined condition, the trigger circuit assembly 212 generates a trigger signal. After the trigger signal is transmitted to the central control unit 220, it can determine that there is an intrusion, lock the source of the trigger signal, and determine the trigger circuit component 212 that sent the trigger signal, thereby ultimately determining the intrusion location.

As shown in fig. 5, 6 and 7, the reaction member 216 includes;

An outer core 217, the outer wall of which is connected with the sensing piece and the inside of which is provided with a mounting cavity, a liquid containing cavity 231 which stores liquid is arranged in the upper area of the outer core 217, and the liquid containing cavity 231 is communicated with the mounting cavity;

The inner core 218 is arranged in the mounting cavity, and the outer wall of the inner core 218 is attached to the inner wall of the outer core 217 but can still rotate relatively; the inner core 218 is provided with a first accommodating cavity 232 and a second accommodating cavity 233 which are communicated with the outside, the bottom of the first accommodating cavity 232 is provided with a first trigger switch 234, the bottom of the second accommodating cavity 233 is provided with a second trigger switch 235, and the first trigger switch 234 and the second trigger switch 235 are respectively connected with the trigger circuit component 212;

in the initial state, the opening of the liquid containing cavity 231 is staggered from the opening of the first containing cavity 232 and the opening of the second containing cavity 233;

in the first state, the opening of the liquid containing cavity 231 is only opposite to the opening of the first containing cavity 232, and the liquid part in the liquid containing cavity 231 enters the first containing cavity 232 and contacts the first trigger switch 234, so that the trigger circuit assembly 212 is triggered;

in the second state, the opening of the liquid containing cavity 231 is only opposite to the opening of the second containing cavity 233, and the liquid in the liquid containing cavity 231 enters the second containing cavity 233 and contacts the second trigger switch 235, so that the trigger circuit assembly 212 is triggered again.

Based on the structure and the function of the reaction member 216, as shown in fig. 8, when the anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site of the present invention is in operation, the reaction member 216 performs the following steps:

Step S121: the trigger circuit assembly 212 detects whether the first trigger switch 234 is triggered;

Step S122: the trigger circuit assembly 212 detects whether the second trigger switch 235 is triggered;

Step S123: and judging whether the intrusion behavior exists according to the two detection results of the trigger circuit component 212.

If the trigger circuit assembly 212 detects that both the first trigger switch 234 and the second trigger switch 235 are triggered, the central control unit 220 determines that there is an intrusion. If the trigger circuit assembly 212 detects that the first trigger switch 234 is triggered and the second trigger switch 235 is not triggered, the central control unit 220 determines that there is no intrusion. By the scheme, interference of some non-manpower random external force can be eliminated, and recognition accuracy is improved.

In particular, in the embodiment, as shown in fig. 5, when no external force is applied, under the action of the torsion spring 215, the sensing element is in a tensed state and partially surrounds the reaction element 216, the connection point of the sensing element and the reaction element 216 is not aligned with the opening, and the opening of the liquid containing cavity 231 is staggered with the openings of the first containing cavity 232 and the second containing cavity 233.

When an intruder holds the blocking member 112, the string-shaped sensing member in a stretched and suspended state is subjected to an external force and deformed, and the deformation induces the sensing reaction assembly 213 connected to the sensing member to react. The deformation is that the rope-shaped sensing element which is tightly stretched bends and pulls the outer core 217 connected with the two ends to rotate.

When the outer core 217 rotates, the opening of the liquid containing cavity 231 gradually approaches the opening of the first containing cavity 232, and when the opening of the liquid containing cavity 231 rotates to the opening pair of the opening and the opening of the first containing cavity 232, as shown in fig. 6, the liquid part in the liquid containing cavity 231 enters the first containing cavity 232 due to self weight and contacts with the first trigger switch 234, the trigger circuit assembly 212 is triggered for the first time to generate a trigger signal, and the central control unit 220 preliminarily determines that an intrusion behavior exists.

If the sensor continues to be stressed, the outer core 217 continues to rotate under the traction of the sensor, the opening of the liquid containing cavity 231 gradually leaves the opening of the first containing cavity 232 and approaches the opening of the second containing cavity 233, when the opening of the liquid containing cavity 231 rotates to the opening pair of the opening of the liquid containing cavity 231 and the opening pair of the second containing cavity 233, as shown in fig. 7, the liquid in the liquid containing cavity 231 enters the second containing cavity 233 due to self weight and contacts the second trigger switch 235, the trigger circuit component 212 is triggered by the second time to generate a trigger signal, and the central control unit 220 finally determines that the intrusion behavior exists.

If the central control unit 220 initially determines that there is an intrusion, the sensing element is no longer stressed, the outer core 217 is reset under the action of the torsion spring 215, the opening of the liquid containing cavity 231 gradually leaves the opening of the first containing cavity 232 and leaves the opening of the second containing cavity 233, the trigger circuit assembly 212 is not triggered for the second time, and the central control unit 220 finally determines that there is no intrusion.

Wherein, the first trigger switch 234/the second trigger switch 235 is composed of a first breaking point and a second breaking point. Of course, the first trigger switch 234 and the second trigger switch 235 may be liquid sensors.

In one embodiment, the first trigger switch 234/second trigger switch 235 described above is comprised of a first trip point and a second trip point. The liquid in the liquid containing cavity 231 is conductive liquid capable of communicating the first breaking point and the second breaking point; the trigger circuit assembly 212 includes a signal trigger and an open circuit connected in series with the signal trigger, one open end of the open circuit being connected to a first disconnection point and the other open end of the open circuit being connected to a second disconnection point.

When the opening of the liquid containing cavity 231 is turned to the opening pair of the opening and the first containing cavity 232, the liquid part in the liquid containing cavity 231 enters the first containing cavity 232 due to self weight, the liquid is conductive liquid, the first breaking point and the second breaking point are communicated, and then an open circuit where the signal trigger is located is conducted, the signal trigger generates a trigger signal, the trigger signal is received by the central control unit 220, and the central control unit 220 preliminarily determines that the intrusion behavior exists.

When the opening of the liquid containing cavity 231 is turned to the opening pair of the opening of the liquid containing cavity 231 and the opening pair of the second containing cavity 233, the liquid in the liquid containing cavity 231 enters the second containing cavity 233 due to self weight, the liquid is conductive liquid, the first breaking point and the second breaking point are communicated, and then an open circuit where the signal trigger is located is conducted, the signal trigger generates a trigger signal again, the trigger signal is received by the central control unit 220, and the central control unit 220 finally determines that an intrusion behavior exists.

In another embodiment, the first trigger switch 234/second trigger switch 235 is a liquid sensor, and the trigger circuit assembly 212 is a trigger circuit comprising a signal trigger configured to receive a signal generated by the liquid sensor and generate a trigger signal for recognition by the central control unit 220.

When the opening of the liquid containing cavity 231 is turned to the opening pair of the opening and the first containing cavity 232, the liquid part in the liquid containing cavity 231 enters into the first containing cavity 232 due to self weight, the liquid is detected by the liquid sensor and is output to the signal trigger, the signal trigger generates a trigger signal, the trigger signal is received by the central control unit 220, and the central control unit 220 preliminarily determines that the intrusion behavior exists.

When the opening of the liquid containing cavity 231 is turned to the opening pair of the opening and the second containing cavity 233, the liquid in the liquid containing cavity 231 enters the second containing cavity 233 due to self weight, the liquid is detected by the liquid sensor and is output to the signal trigger, the signal trigger generates a trigger signal again, the trigger signal is received by the central control unit 220, and the central control unit 220 finally determines that the intrusion behavior exists.

As shown in fig. 9, 10, and 11, the reaction member 216 includes:

the outer core 217 comprises a first core 236 and a second core 237 which are matched, and the outer walls of the first core 236 and the second core 237 are respectively connected with the sensing piece;

The inner core 218 comprises a third core 238 and a fourth core 239 which are matched, wherein the third core 238 is embedded and fixed in the first core 236, and the fourth core 239 is embedded and fixed in the second core 237; the third core 238 and the fourth core 239 are all electromagnetic iron pieces;

The trigger circuit assembly 212 includes an angle sensor provided on the outer core 217 and a pressure trigger 240 provided on an inner surface of the housing 214;

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

In the initial state, the first core 236 and the second core 237 are in the combined state, and the third core 238 and the fourth core 239 are in the combined state;

In the first state, the angle sensor detects that the rotation angle of the outer core 217 reaches a preset angle value, and the central control unit 220 controls the third core 238 and the fourth core 239 to be powered off, so that the third core 238 and the fourth core 239 are in a state to be separated under the traction of the sensing piece;

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 presses the pressure trigger 240, and the trigger circuit assembly 212 is triggered.

Based on the structure and the function of the reaction member 216, as shown in fig. 12, when the anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site of the present invention is in operation, the reaction member 216 performs the following steps:

Step S124: the trigger circuit assembly 212 detects whether the angle of rotation of the outer core 217 reaches a preset angle value;

Step S125: the trigger circuit assembly 212 detects whether the pressure trigger 240 is contacted and pressed;

Step S126: and judging whether the intrusion behavior exists according to the two detection results of the trigger circuit component 212.

If the trigger circuit assembly 212 detects that the rotation angle of the outer core 217 reaches the preset angle value and the pressure trigger 240 is contacted and pressed, the central control unit 220 determines that there is an intrusion. If the trigger circuit assembly 212 detects that the angle of rotation of the outer core 217 does not reach the preset angle value, or the angle of rotation of the outer core 217 reaches the preset angle value, but the pressure trigger 240 is not pressed by contact, the central control unit 220 determines that there is no intrusion. By the scheme, interference of some non-manpower random external force can be eliminated, and recognition accuracy is improved.

In particular, in the embodiment, as shown in fig. 9, when no external force is applied, the sensing element is in a stretched state and partially surrounds the reaction element 216 under the action of the torsion spring 215, the connection point of the sensing element and the reaction element 216 is not aligned with the opening, the first core 236 is in a combined state with the second core 237, and the third core 238 is in a combined state with the fourth core 239.

When an intruder holds the blocking member 112, the string-shaped sensing member in a stretched and suspended state is subjected to an external force and deformed, and the deformation induces the sensing reaction assembly 213 connected to the sensing member to react. The deformation is that the rope-shaped sensing element which is tightly stretched bends and pulls the outer core 217 connected with the two ends to rotate.

When the outer core 217 rotates, the angle sensor detects the change of the rotation angle of the outer core 217, and as shown in fig. 10, when the rotation angle of the outer core 217 reaches a preset angle value, the central control unit 220 preliminarily determines that an intrusion behavior exists. Then, under the action of the central control unit 220, the third core 238 and the fourth core 239 serving as the electromagnet members are powered off or current is reduced, so that the magnetic attraction between the third core 238 and the fourth core 239 is lost or greatly reduced, and the attraction state of the third core 238 and the fourth core 239 cannot be continuously maintained under the action of traction force.

If the sensor continues to be stressed, as shown in fig. 11, the third core 238 and the fourth core 239 are thoroughly separated from each other under the traction action, the first core 236 or the second core 237 approaches to and contacts the pressure trigger 240 located at the side of the sensor under the traction action, the trigger circuit assembly 212 is triggered, and the central control unit 220 finally determines that there is an intrusion.

As shown in fig. 9, the number of the pressure triggering pieces 240 is four, and the pressure triggering pieces are symmetrically distributed in pairs; two of the pressure sensors are opposite the outer surface of the first core 236 and the other two are opposite the outer surface of the second core 237. In the embodiment, that is, the first core 236 or the second core 237 will approach and contact the two pressure triggering members 240 located at the sides thereof under the traction of the sensing member, the triggering circuit assembly 212 is triggered, and the central control unit 220 finally determines that there is an intrusion.

Wherein, as shown in fig. 9, 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.

As shown in fig. 13, a rotating shaft member is disposed between the reaction member 216 and the housing 214, and a torsion spring 215 is sleeved on the rotating shaft member, so that the reaction member 216 is rotatably connected with the housing 214 through the rotating shaft member.

An outer wall of one end of the housing 214 is provided with a mounting portion, and the sensor unit 210 is fixedly connected to the frame member 111 through the mounting portion.

The mounting portion may be an outer ear portion extending from an outer wall of the housing 214, the outer ear portion having a screw hole therein for a nut to pass through and be screwed into the screw hole of the frame member 111, thereby achieving a fixed mounting of the sensing unit 210 to the frame member 111.

As shown in fig. 2, the above-mentioned anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site further includes a video monitoring layer 300 connected to the central control unit 220, the video monitoring layer 300 includes a plurality of photographing devices, the photographing devices are mounted on the frame member 111, and the number of photographing devices corresponds to that of the frame member 111 one by one, and the video monitoring layer 300 is configured to:

When it is determined that there is an intrusion, the central control unit 220 controls the nearest photographing device to start collecting video picture information of its vicinity according to the intrusion site.

Based on the structure and the function of the video monitoring layer 300, as shown in fig. 14, the anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site of the present invention performs the following steps during operation:

step S100: acquiring state information of the physical fence layer 100;

step S200: judging whether an intrusion behavior exists according to the state information;

step S300: if the intrusion behavior exists, determining an intrusion site;

step S400: and sending out an execution instruction according to the invasion place so as to drive the shooting device at the corresponding position to acquire the video picture information nearby the shooting device.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

Furthermore, the foregoing examples represent only a few embodiments of the present invention, which are described in detail and are not thereby to be construed as limiting the scope of the invention. It should be noted that modifications, substitutions and improvements can be made by those skilled in the art without departing from the spirit of the invention, and are intended to be within the scope of the invention. Accordingly, the protection scope of the present invention is subject to the claims.

Claims (10)

1. An anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site, comprising:

a physical fence layer comprising a plurality of base fence units, the base fence units comprising two frame members and a plurality of barriers connecting them;

the sensing detection layer comprises a plurality of sets of sensing detection units and a central control unit and is used for detecting whether the physical fence layer has an intrusion behavior and determining intrusion points;

the blocking piece comprises a rod core and a soft shell sleeved on the rod core, and an installation gap exists between the rod core and the soft shell;

The sensing detection unit includes:

A base sensing assembly comprising an inelastic string-like sensing piece positioned in the mounting gap, the sensing piece configured to be in a taut suspended state upon mounting;

the sensing reaction assemblies are configured to be the same in number as the frame pieces and are installed on the frame pieces in a one-to-one correspondence manner;

And the trigger circuit component is connected with the central control unit and takes the sensing reaction component as a trigger source.

2. The anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site of claim 1, wherein the sensing reaction assembly comprises:

A housing having two openings formed therein that are centrally symmetrical, the two openings being configured to be positioned on the same horizontal line when installed;

The reaction piece is rotatably arranged in the shell and is used for reacting to the action of the sensing piece; the sensing piece enters the shell through the opening and is connected with the reaction piece;

the two ends of the torsion spring are respectively connected with the shell and the reaction piece;

the sensing layer and the sensing element are configured to:

In an initial state, the sensing piece is in a stretched state and partially surrounds the reaction piece under the action of the torsion spring, and the connection point of the sensing piece and the reaction piece is not aligned with the opening;

In a first state, the reaction member is in a primary form, the trigger circuit assembly is triggered, and the central control unit starts to detect whether an intrusion behavior exists;

in the second state, the reaction member is in a secondary form, and the central control unit finally determines that an intrusion behavior exists and an intrusion site exists.

3. An intrusion prevention nuclear power plant electronic fence capable of accurately locating an intrusion site according to claim 2 wherein the reaction member comprises;

The outer wall of the outer core is connected with the sensing piece, an installation cavity is formed in the outer core, a liquid containing cavity for storing liquid is further formed in the upper area of the outer core, and the liquid containing cavity is communicated with the installation cavity;

The inner core is arranged in the mounting cavity, and the outer wall of the inner core is attached to the inner wall of the outer core but can still rotate relatively; the inner core is provided with a first accommodating cavity and a second accommodating cavity which are communicated with the outside, the bottom of the first accommodating cavity is provided with a first trigger switch, the bottom of the second accommodating cavity is provided with a second trigger switch, and the first trigger switch and the second trigger switch are respectively connected with the trigger circuit component;

in the initial state, the opening of the liquid containing cavity is staggered from the opening of the first containing cavity and the opening of the second containing cavity;

In a first state, the opening of the liquid containing cavity is only opposite to the opening of the first containing cavity, the liquid part in the liquid containing cavity enters the first containing cavity and contacts with the first trigger switch, and the trigger circuit component is triggered;

In the second state, the opening of the liquid containing cavity is only opposite to the opening of the second containing cavity, the liquid in the liquid containing cavity enters the second containing cavity and contacts with the second trigger switch, and the trigger circuit assembly is triggered again.

4. An anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to claim 3 wherein the first trigger switch/second trigger switch is composed of a first disconnection point and a second disconnection point; the liquid in the liquid containing cavity is conductive liquid capable of communicating the first breaking point and the second breaking point; the trigger circuit assembly comprises a signal trigger and an open circuit connected with the signal trigger in series, wherein one open end of the open circuit is connected with the first disconnection point, and the other open end of the open circuit is connected with the second disconnection point.

5. An intrusion prevention nuclear power plant electronic fence capable of accurately locating an intrusion site according to claim 3 wherein the first/second trigger switch is a liquid sensor and the trigger circuit assembly is a trigger circuit comprised of a signal trigger configured to receive a signal generated by identifying the liquid sensor and to generate a trigger signal identifiable by the central control unit.

6. The anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to claim 2, wherein the reaction member includes:

the outer core comprises a first core body and a second core body which are matched, and the outer walls of the first core body and the second core body are respectively connected with the sensing piece;

The inner core comprises a third core body and a fourth core body which are matched, the third core body is fixedly embedded in the first core body, and the fourth core body is fixedly embedded in the second core body; the third core body and the fourth core body are electromagnetic iron pieces;

the trigger circuit assembly comprises an angle sensor and a pressure trigger piece, the angle sensor is arranged on the outer core, and the pressure trigger piece is arranged on the inner surface of the shell;

the central control unit is configured to receive signals generated by the angle sensor and signals generated by the pressure trigger;

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

In a first state, the angle sensor detects that the rotating angle of the outer core reaches a preset angle value, and the central control unit controls the third core body and the fourth core body to be powered off so that the third core body and the fourth core body are in a state to be separated under the traction of the sensing piece;

In a second state, the first core body and the second core body are in a separated state, the third core body and the fourth core body are in a separated state, the first core body or the second core body is in contact with and presses the pressure trigger piece, and the trigger circuit component is triggered.

7. The anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to claim 6, wherein the pressure trigger comprises a spring and a pressure sensor; one end of the spring is connected with the pressure sensor, and the other end of the spring is connected with the inner surface of the shell.

8. The anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site according to claim 7, wherein the number of the pressure trigger pieces is four and the pressure trigger pieces are distributed symmetrically; 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.

9. The anti-intrusion nuclear power station electronic fence capable of accurately positioning an intrusion site according to claim 3 or 6, wherein a rotating shaft member is arranged between the reaction member and the housing, the torsion spring is sleeved on the rotating shaft member, and the reaction member is in rotational connection with the housing through the rotating shaft member.

10. The anti-intrusion nuclear power plant electronic fence capable of accurately locating an intrusion site according to claim 9, further comprising a video monitoring layer connected to the central control unit, the video monitoring layer comprising a plurality of photographing devices, the photographing devices being mounted on the frame members in one-to-one correspondence with the frame members, the video monitoring layer being configured to:

When judging that the intrusion behavior exists, the central control unit can control the shooting device closest to the intrusion site to start to collect the nearby video picture information.