Nuclear power station tension fence based on magnetic induction tension detection technology

Abstract

The invention provides a nuclear power station tension fence based on a magnetic induction tension detection technology. The nuclear power station tension fence comprises a fence rod piece unit; the fence cable piece unit comprises at least one tension cable; the first magnetic induction detection unit is connected with the fence cable piece unit and the fence rod piece unit and is used for detecting the tension change on the tension cable; the second magnetic induction detection unit is arranged on the fence rod piece unit and used for detecting the wind power change in the nearby area; and the central control unit is configured to judge whether an intrusion behavior exists or not according to the matching degree of the detection result of the first magnetic induction detection unit and the detection result of the second magnetic induction detection unit. By means of the design, the problems that an existing fence is prone to external interference, and the accuracy of a detection result is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fence security, and in particular to a tension fence for nuclear power plants based on magnetic induction tension detection technology. Background Art

[0002] In order to prevent illegal intrusion and various sabotage activities, traditional preventive measures are to set up fences around the perimeters of important areas, which are widely used in the perimeter security of ordinary residential communities and villa residential areas. However, for some special places with higher security requirements, such as factories, warehouses, substations, nuclear power plants, power plants, etc., traditional fences cannot meet the requirements. To solve this problem, some tension fences with better security effects have emerged on the market.

[0003] For example, the prior art with the publication number CN212181591U discloses a tension electronic fence, which includes a first terminal pole, a second terminal pole, a control pole, and fence wires. A plurality of groups of fence wires are fixedly connected between the first terminal pole and the control pole, and a plurality of groups of fence wires are fixedly connected between the control pole and the second terminal pole. Tighteners are installed on the plurality of groups of fence wires, and tension springs are installed at the connections of the plurality of groups of fence wires and the control pole. A tension detector, a controller, and a wireless communication module are sequentially installed inside the control pole.

[0004] However, this prior art still has defects. Its intrusion detection function is realized by detecting the tension change on the fence wires tightened by the tighteners on the fence. When the tension detector detects a change in tension, it determines that an intrusion has occurred on the fence. However, in some special cases, such as when external forces such as wind are applied to the fence wires, the tension detector will also detect a change in tension and misjudge that an intrusion has occurred on the fence, thereby making the fence vulnerable to external interference and greatly reducing the accuracy of the detection result. Summary of the Invention

[0005] Based on this, in view of the problems that the existing fences are vulnerable to external interference and the accuracy of the detection results is relatively low, it is necessary to provide a tension fence for nuclear power plants based on magnetic induction tension detection technology.

[0006] The present invention provides a tension fence for nuclear power plants based on magnetic induction tension detection technology, which includes:

[0007] Fence member unit;

[0008] Fence cable unit, including at least one tension cable;

[0009] A first magnetic induction detection unit, connecting the fence cable unit and the fence member unit, for detecting the tension change on the tension cable;

[0010] The second magnetic induction detection unit is provided on the railing member unit and is used to detect the wind force change in the nearby area;

[0011] The central control unit is configured to:

[0012] Judge whether there is an intrusion behavior according to the detection result of the first magnetic induction detection unit and the matching degree of the detection result of the second magnetic induction detection unit.

[0013] Wherein, the first magnetic induction detection unit includes:

[0014] The first magnet member is connected to the tension cable;

[0015] The first magnetic induction member is installed on the railing member unit and is matched with the first magnet member;

[0016] The first intermediate connecting member has two ends respectively connected to the first magnet member and the first magnetic induction member;

[0017] Wherein, the first intermediate connecting member is a stretchable and deformable member. When the first intermediate connecting member undergoes stretchable deformation, the first magnet member will approach or move away from the first magnetic induction member.

[0018] Wherein, the second magnetic induction detection unit includes:

[0019] The wind power kinetic energy component is used to convert the wind force change into mechanical kinetic energy change;

[0020] The magnetic detection component is cooperatively installed with the wind power kinetic energy component and is used to convert the mechanical kinetic energy change into magnetic field change.

[0021] Wherein, the magnetic detection component includes:

[0022] The second magnet member is connected to the output end of the wind power kinetic energy component;

[0023] The second magnetic induction member is arranged to be matched with the second magnet member.

[0024] Wherein, the wind power kinetic energy component includes:

[0025] The fan blade component includes a fan blade body and a rotating shaft member;

[0026] The power component includes a power input member and a power output member;

[0027] Wherein, the power component is configured to be cooperatively connected with the rotating shaft member. When the fan blade body rotates, the power input member will be driven, and finally the power will be transmitted to the power output member, causing a displacement change at the output end of the power output member;

[0028] The railing member unit is provided with through holes and mounting grooves. The fan blade component is arranged in the through holes, and the power component and the magnetic detection component are both arranged in the mounting grooves.

[0029] Among them, the power input member includes a gear member which is installed on the rotating shaft member. The power output member includes a toothed member that cooperates with the gear member. The end of the toothed member is connected to the second magnet member, and the second magnetic induction member is installed on the wall of the mounting groove.

[0030] The magnetic detection component further includes a second intermediate connecting member whose two ends are respectively connected to the second magnet member and the second magnetic induction member. The second intermediate connecting member is a spring.

[0031] When the fan blade body rotates under the action of wind, the gear member connected to the rotating shaft member will rotate accordingly, and then drive the toothed member that cooperates with the gear member to change its displacement. When the toothed member changes its displacement, it will push the second magnet member at its end close to the second magnetic induction member, enabling the second magnetic induction member to detect the magnetic field change. When the wind force is below the preset value, under the action of the second intermediate connecting member, the second magnet member will move away from the second magnetic induction member.

[0032] Among them, the fence cable unit includes M tension cables, where M is greater than or equal to 1 and is an integer.

[0033] The fence cable unit further includes a guiding component. The guiding component includes N guiding members which are arranged near the ends of the tension cables and cooperate with the tension cables to guide the ends of the tension cables.

[0034] Among them, when M is odd, N is equal to M minus 1; when M is even, N is equal to M.

[0035] Among them, the number of the first magnet member, the first magnetic induction member, and the first intermediate connecting member is all 1.

[0036] The guiding component further includes a restraining tube. The ends of the M tension cables all pass through the restraining tube and are connected to the first magnet member. The restraining tube is arranged on the same horizontal line as the first magnet member.

[0037] Among them, the number of the first magnet member and the first intermediate connecting member is the same as the number of the tension cables, and the number of the first magnetic induction member is 1.

[0038] The first magnetic induction component includes a frame body and a magnetic induction body disposed in the frame body. Both ends of each first magnet component are respectively connected to each tension cable and each intermediate connecting member, and each intermediate connecting member is connected to the frame body.

[0039] Wherein, the tension fence of the nuclear power plant based on the magnetic induction tension detection technology further includes a warning unit connected to the central control unit, and the warning unit includes an alarm component and a display component.

[0040] The above technical solution has the following advantages or beneficial effects: In the present invention, the first magnetic induction detection unit connected to the tension cable will detect the tension change on the tension cable in real time and transmit the tension change information to the central control unit. At the same time, the second magnetic induction detection unit located on the railing member unit will also detect the wind force change in the nearby area in real time and transmit the wind force change information to the central control unit. After the central control unit obtains the tension change information and the wind force change information respectively transmitted by the first magnetic induction detection unit and the second magnetic induction detection unit, it will first judge whether there is a real tension change according to the corresponding values and their changes included in the tension change information. After determining that there is a tension change on the tension cable, the central control unit will match the tension change detected by the first magnetic induction detection unit with the wind force change detected by the second magnetic induction detection unit. If the two do not match, it is determined that there is an intrusion behavior; if the two match, it is determined that the tension change on the tension cable is caused by the wind force in the nearby area and there is no intrusion behavior, thus well solving the problems that the existing fences are easily affected by external interference and the accuracy of the detection results is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a circuit connection block diagram of the tension fence of the nuclear power plant based on the magnetic induction tension detection technology of the present invention;

[0042] Figure 2 It is a schematic diagram of the execution steps when the tension fence of the nuclear power plant based on the magnetic induction tension detection technology of the present invention is working;

[0043] Figure 3 It is a schematic installation structure diagram of the tension fence of the nuclear power plant based on the magnetic induction tension detection technology of the present invention;

[0044] Figure 4 It is a schematic diagram of the execution steps when the tension fence of the nuclear power plant based on the magnetic induction tension detection technology of the present invention is working in an embodiment;

[0045] Figure 5Schematic diagram of the execution steps when the tension fence of a nuclear power plant based on magnetic induction tension detection technology of the present invention works in another embodiment;

[0046] Figure 6 The tension fence of a nuclear power plant based on magnetic induction tension detection technology of the present invention Figure 3 Schematic diagram of the partial cross-sectional structure in area A;

[0047] Figure 7 Schematic diagram of the installation structure of the tension fence of a nuclear power plant based on magnetic induction tension detection technology of the present invention in an embodiment.

[0048] Explanation of the reference numerals is as follows:

[0049] 100, railing member unit; 110, through hole; 120, installation groove; 200, fence cable member unit; 210, tension cable; 220, guiding assembly; 300, first magnetic induction detection unit; 310, first magnet member; 320, first magnetic induction member; 330, first intermediate connecting member; 400, second magnetic induction detection unit; 410, wind energy kinetic component; 411, fan blade component; 412, power input member; 413, power output member; 420, magnetic detection component; 421, second magnet member; 422, second magnetic induction member; 423, second intermediate connecting member; 500, central control unit. Detailed implementation manners

[0050] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following clearly and completely describes the detailed implementation manners of the present invention with reference to the accompanying drawings. Obviously, the specific details described below are only some embodiments of the present invention, and the present invention can also be implemented in many other embodiments different from those described herein. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art belonging to the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0053] The present invention provides a tension fence for a nuclear power plant based on magnetic induction tension detection technology, as Figure 1 and Figure 3 shown. The tension fence includes:

[0054] A railing member unit 100;

[0055] A fence cable member unit 200, including at least one tension cable 210;

[0056] A first magnetic induction detection unit 300, connecting the fence cable member unit 200 and the railing member unit 100, for detecting the tension change on the tension cable 210;

[0057] A second magnetic induction detection unit 400, provided on the railing member unit 100, for detecting the wind force change in the nearby area;

[0058] A central control unit 500, configured to:

[0059] Judge whether there is an intrusion behavior according to the detection result of the first magnetic induction detection unit 300 and the matching degree of the detection result of the second magnetic induction detection unit 400.

[0060] For the convenience of narration and understanding, hereinafter, the detection result of the first magnetic induction detection unit 300 is defined as the first detection result, and the detection result of the second magnetic induction detection unit 400 is defined as the second detection result.

[0061] As Figure 2 shown, during operation, the tension fence for a nuclear power plant based on magnetic induction tension detection technology of the present invention will perform the following steps:

[0062] Step S100: Obtain the first detection result and the second detection result;

[0063] Step S200: Judge whether there is a tension change on the tension cable 210 according to the first detection result;

[0064] Step S300: If so, match the first detection result with the second detection result;

[0065] Step S400: Judge whether there is an intrusion behavior according to the matching result.

[0066] For the convenience of understanding, the tension fence for a nuclear power plant based on magnetic induction tension detection technology of the present invention will be further described below in combination with the above structure and the steps to be performed during operation.

[0067] Specifically in the embodiment, the first magnetic induction detection unit 300 connected to the tension cable 210 will detect the tension change on the tension cable 210 in real time (i.e., the detection result of the first magnetic induction detection unit 300), and transmit the tension change information to the central control unit 500. At the same time, the second magnetic induction detection unit 400 located on the railing member unit 100 will also detect the wind force change in the nearby area in real time (the detection result of the second magnetic induction detection unit 400), and transmit the wind force change information to the central control unit 500.

[0068] After the central control unit 500 obtains the tension change information and wind force change information respectively transmitted by the first magnetic induction detection unit 300 and the second magnetic induction detection unit 400, it will first judge whether there is a real tension change according to the corresponding values and their change situations included in the tension change information.

[0069] If the above value is a preset value, for example, 0, it is judged that there is no tension change on the tension cable 210. If the above value is not a preset value, for example, non-0, it is judged that there is a tension change on the tension cable 210.

[0070] Of course, the above preset value is not limited to a specific value, but can also be a range that meets the conditions.

[0071] After determining that there is a tension change on the tension cable 210, the central control unit 500 will match the tension change detected by the first magnetic induction detection unit 300 with the wind force change detected by the second magnetic induction detection unit 400. If the two do not match, the central control unit 500 judges that there is an intrusion behavior; if the two match, the central control unit 500 judges that the tension change on the tension cable 210 is caused by the wind force in the nearby area and there is no intrusion behavior.

[0072] Through the above solution, the present invention can well solve the problems that the existing fences are easily interfered by the outside and the accuracy of the detection results is relatively low.

[0073] As Figure 4 shown, in the above embodiment, the method of matching the first detection result with the second detection result in step S300 may include the following steps:

[0074] Step S310: Draw a tension change waveform diagram with time as the horizontal axis and tension value as the vertical axis;

[0075] Step S320: Draw a wind force change waveform diagram with time as the horizontal axis and wind force value as the vertical axis;

[0076] Step S330: Superimpose and match the tension change waveform diagram with the wind force change waveform diagram.

[0077] The above-mentioned step S310 and step S320 can be executed synchronously, or step S310 can be executed before step S320 or step S310 can be executed after step S320, but both must be completed before step S330.

[0078] Specifically in the embodiment, after determining that there is a change in the tension on the tension cable 210, the central control unit 500 will match the generated tension change waveform diagram with the wind force change waveform diagram. Based on a preset matching criterion, if the two do not match, the central control unit 500 determines that there is an intrusion behavior; if the two match, the central control unit 500 determines that the change in the tension on the tension cable 210 is caused by the wind force in the nearby area and there is no intrusion behavior.

[0079] The above-mentioned preset matching criterion can be whether the waveforms of the tension change waveform diagram and the wind force change waveform diagram are consistent or dynamically consistent.

[0080] Among them, the waveforms being consistent can be understood as that the widths of the waveforms in the tension change waveform diagram and the wind force change waveform diagram, and the time points of rising and falling are roughly in agreement.

[0081] The waveforms being dynamically consistent can be understood as that the time points of rising and falling of the waveforms in the tension change waveform diagram and the wind force change waveform diagram are not the same, but the widths of the waveforms are roughly in agreement. For example, assuming that the time corresponding to a complete waveform is 1 second, the width of the waveform in the tension change waveform diagram between 0 second and 1 second is roughly in agreement with the width of the waveform in the wind force change waveform diagram between 0.5 second and 1.5 seconds.

[0082] As Figure 5 shown, based on the above-mentioned step S310, step S320 and step S330, the method for determining whether there is an intrusion behavior according to the matching result in step S400 can include the following steps:

[0083] Step S410: If the tension change waveform diagram matches the wind force change waveform diagram, it is determined that there is no intrusion behavior;

[0084] Step S420: If the tension change waveform diagram does not match the wind force change waveform diagram, it is determined that there is an intrusion behavior.

[0085] Specifically in the embodiment, after determining that there is a tension change on the tension cable 210, the central control unit 500 will match the generated tension change waveform diagram with the wind force change waveform diagram. Whether the waveforms of the tension change waveform diagram and the wind force change waveform diagram are consistent or dynamically consistent is used as the matching criterion. If the waveforms of the two are inconsistent and not dynamically consistent, the central control unit 500 determines that there is an intrusion behavior; if the waveforms of the two are consistent or dynamically consistent, the central control unit 500 determines that the tension change on the tension cable 210 is caused by the wind force in the nearby area and there is no intrusion behavior.

[0086] The present invention also discloses a tension device for a nuclear power plant based on a magnetic induction tension detection technology, and the device includes:

[0087] A detection information acquisition unit for acquiring a first detection result and a second detection result;

[0088] A tension change judgment unit for judging whether there is a tension change on the tension cable 210 according to the first detection result;

[0089] A detection result matching unit for matching the first detection result with the second detection result;

[0090] An intrusion behavior judgment unit for judging whether there is an intrusion behavior according to the matching result.

[0091] Specifically in the embodiment, the first magnetic induction detection unit 300 connected to the tension cable 210 will detect the tension change on the tension cable 210 in real time and transmit the tension change information to the detection information acquisition unit. At the same time, the second magnetic induction detection unit 400 located on the railing member unit 100 will also detect the wind force change in the nearby area in real time and transmit the wind force change information to the detection information acquisition unit.

[0092] After the detection information acquisition unit acquires the tension change information and the wind force change information respectively transmitted by the first magnetic induction detection unit 300 and the second magnetic induction detection unit 400, the tension change judgment unit will judge whether there is really a tension change according to the corresponding values and their change situations included in the tension change information.

[0093] After determining that there is a tension change on the tension cable 210, the detection result matching unit will match the tension change detected by the first magnetic induction detection unit 300 with the wind force change detected by the second magnetic induction detection unit 400. If the two do not match, the intrusion behavior judgment unit determines that there is an intrusion behavior; if the two match, the intrusion behavior judgment unit determines that the tension change on the tension cable 210 is caused by the wind force in the nearby area and there is no intrusion behavior.

[0094] In one solution, such asFigure 3 and Figure 7 As shown, the first magnetic induction detection unit 300 includes:

[0095] A first magnet member 310, connected to the tension cable 210;

[0096] A first magnetic induction member 320, installed on the railing member unit 100 and matching the first magnet member 310;

[0097] A first intermediate connecting member 330, with its two ends respectively connected to the first magnet member 310 and the first magnetic induction member 320;

[0098] Wherein, the first intermediate connecting member 330 is a telescopically deformable member. When the first intermediate connecting member 330 undergoes telescopic deformation, the first magnet member 310 will approach or move away from the first magnetic induction member 320.

[0099] Specifically in the embodiment, the first magnetic induction detection unit 300 connected to the tension cable 210 will detect the tension change on the tension cable 210 in real time and transmit the tension change information to the central control unit 500. In this process, combined with the structure of the first magnetic induction detection unit 300 above, a more specific implementation method is:

[0100] The first intermediate connecting member 330 is a telescopically deformable member. One end of it is connected to the first magnet member 310, and the other end is connected to the first magnetic induction member 320. The first magnetic induction member 320 is directly or indirectly fixedly installed on the railing member unit 100. When the tension cable 210 is subjected to an external force (i.e., tension appears), the first magnet member 310 connected to the tension cable 210 will be pulled, and then the first intermediate connecting member 330 will be pulled in the direction of the first magnet. Since the position of the first magnetic induction member 320 is fixed, when the pulling force is transmitted to the first intermediate connecting member 330, as a telescopically deformable member, it will be stretched, and finally the first magnet member 310 will move away from the first magnetic induction member 320. The first magnetic induction member 320 will send the detected magnetic field change information to the central control unit 500. When the external force acting on the tension cable 210 becomes smaller or disappears, the first magnet member 310 connected to the tension cable 210 will be relaxed or released. The first intermediate connecting member 330, as a telescopically deformable member, will retract and even completely return to its initial state, and finally the first magnet member 310 will approach the first magnetic induction member 320. The first magnetic induction member 320 will send the detected magnetic field change information to the central control unit 500.

[0101] Subsequently, the central control unit 500 determines whether there is a real tension change based on the corresponding values and their changes included in the magnetic field change information detected by the first magnetic induction component 320. If the magnetic field value included in the magnetic field change information detected by the first magnetic induction component 320 changes, the central control unit 500 can determine that there is a tension change on the tension cable 210.

[0102] The above-mentioned first magnet component 310 can be a magnet component. Correspondingly, the first magnetic induction component 320 is a Hall sensor that matches the magnet component.

[0103] In one solution, as Figure 6 and Figure 7 shown, the second magnetic induction detection unit 400 includes:

[0104] A wind power kinetic energy component 410 for converting a wind power change into a mechanical kinetic energy change;

[0105] A magnetic detection component 420, which is installed in cooperation with the wind power kinetic energy component 410, for converting a mechanical kinetic energy change into a magnetic field change.

[0106] Specifically in the embodiment, the second magnetic induction detection unit 400 located on the railing component unit 100 will detect the wind power change in the nearby area in real time and transmit the wind power change information to the central control unit 500. In this process, combined with the structure of the above-mentioned first magnetic induction detection unit 300, the more specific implementation method is:

[0107] If there is no wind in the nearby area or the wind power is too small to reach the preset value and is insufficient to start the wind power kinetic energy component 410, the magnetic detection component 420 will not detect a magnetic field change, and the second magnetic induction detection unit 400 will not work.

[0108] However, when the wind power in the nearby area drives the wind power kinetic energy component 410 to start, the wind power kinetic energy component 410 will convert the kinetic energy change of the wind power into the mechanical kinetic energy change of the wind power kinetic energy component 410 and transmit it to the magnetic detection component 420. The magnetic detection component 420 will convert the mechanical kinetic energy change into a magnetic field change, thereby realizing the detection of the wind power change in the nearby area. After that, the magnetic field change information will be sent by the magnetic detection component 420 to the central control unit 500.

[0109] After the central control unit 500 determines that there is a change in the tension on the tension cable 210, the central control unit 500 will match the magnetic field change information detected by the first magnetic induction detection unit 300 with the magnetic field change information detected by the second magnetic induction detection unit 400. If the two do not match, the central control unit 500 determines that there is an intrusion behavior; if the two match, the central control unit 500 determines that the change in the tension on the tension cable 210 is caused by the wind force in the nearby area and there is no intrusion behavior.

[0110] In one solution, as Figure 1 and Figure 6 shown, the magnetic detection component 420 includes:

[0111] A second magnet member 421, connected to the output end of the wind power kinetic energy component 410;

[0112] A second magnetic induction member 422, arranged to match the second magnet member 421.

[0113] Specifically in the embodiment, when the wind force in the nearby area drives the wind power kinetic energy component 410 to start, the wind power kinetic energy component 410 will convert the kinetic energy change of the wind force into the mechanical kinetic energy change of the wind power kinetic energy component 410 and transmit it to the second magnet member 421 connected thereto, causing the second magnet member 421 to displace, showing a phenomenon of approaching or moving away from the second magnetic induction member 422. During the process of the second magnet member 421 approaching or moving away from the second magnetic induction member 422, the second magnetic induction member 422 will detect the change in the magnetic field and send the magnetic field change information to the central control unit 500. Thereafter, the central control unit 500 finally determines whether there is an intrusion according to the above magnetic field change information and the magnetic field change information detected by the first magnetic induction detection unit 300.

[0114] The above-mentioned second magnet member 421 can be a magnet member. Correspondingly, the second magnetic induction member 422 is a Hall sensor matching the magnet member.

[0115] In one solution, as Figure 6 shown, the wind power kinetic energy component 410 includes:

[0116] A fan blade component 411, including a fan blade body and a rotating shaft member;

[0117] A power component, including a power input member 412 and a power output member 413;

[0118] Wherein, the power component is configured to be cooperatively connected with the rotating shaft member. When the fan blade body rotates, the power input member 412 will be driven and finally transmit the power to the power output member 413, causing a displacement change at the output end of the power output member 413.

[0119] AsFigure 6 As shown, through holes 110 and mounting grooves 120 are provided on the railing member unit 100. The fan blade component 411 is arranged in the through hole 110, and the power component and the magnetic detection component 420 are both arranged in the mounting groove 120.

[0120] Specifically in the embodiment, when the wind power kinetic energy component 410 is driven to start by the wind in the nearby area, the wind power kinetic energy component 410 will convert the kinetic energy change of the wind into the mechanical kinetic energy change of the wind power kinetic energy component 410, and the magnetic detection component 420 will convert this mechanical kinetic energy change into a magnetic field change, so as to realize the detection of the wind change in the nearby area. And in this process, combined with the structure of the above-mentioned wind power kinetic energy component 410, the more specific implementation method is as follows:

[0121] When there is wind in the nearby area or the wind force of the wind is sufficient to start the wind power kinetic energy component 410, the wind will pass through the through hole 110 on the railing member unit 100 and drive the fan blade component 411 in the through hole 110 to rotate, and then drive the rotating shaft member connected to the fan blade component 411 to rotate. When the rotating shaft member rotates, the power input member 412 connected to it will start to work and transmit the power to the power output member 413, causing the power output member 413 to have a displacement change.

[0122] Since the power output member 413 has a displacement change, the second magnet member 421 connected to the power output member 413 is displaced, showing a phenomenon of approaching or moving away from the second magnetic induction member 422. And in the process of the second magnet member 421 approaching or moving away from the second magnetic induction member 422, the second magnetic induction member 422 will detect the change of the magnetic field and send the magnetic field change information to the central control unit 500. Thereafter, the central control unit 500 finally determines whether there is an intrusion according to the above magnetic field change information and the magnetic field change information detected by the first magnetic induction detection unit 300.

[0123] In one solution, as Figure 6 shown, the power input member 412 includes a gear member, the gear member is installed on the rotating shaft member, the power output member 413 includes a toothed member that cooperates with the gear member, the end of the toothed member is connected to the second magnet member 421, and the second magnetic induction member 422 is installed on the wall of the mounting groove 120;

[0124] As Figure 3 and Figure 7 shown, the magnetic detection component 420 further includes a second intermediate connecting member 423, the two ends of which are respectively connected to the second magnet member 421 and the second magnetic induction member 422, and the second intermediate connecting member 423 is a spring;

[0125] When the fan blade body rotates under the action of wind force, the gear member connected to the rotating shaft member will rotate accordingly, thereby driving the tooth condition member that cooperates with the gear member to undergo a displacement change. When the tooth condition member undergoes a displacement change, it will push the second magnet member 421 at its end closer to the second magnetic induction member 422, causing the second magnetic induction member 422 to detect a magnetic field change; when the wind force is below the preset value, under the action of the second intermediate connecting member 423, the second magnet member 421 will move away from the second magnetic induction member 422.

[0126] Specifically in the embodiment, when wind appears in the nearby area or the wind force is sufficient to start the wind power kinetic energy component 410, the wind force will pass through the through hole 110 on the railing member unit 100 and drive the fan blade component 411 in the through hole 110 to rotate, thereby driving the rotating shaft member connected to the fan blade component 411 to rotate. When the rotating shaft member rotates, the gear member connected to it will start to rotate. After the gear member starts to rotate, it will drive the tooth condition member that cooperates with it to undergo a displacement change along the installation groove 120, and make the second magnet member 421 connected to the end of the tooth condition member approach the second magnetic induction member 422 located at the groove wall of the installation groove 120. Then, the second magnetic induction member 422 will detect the change in the magnetic field and send the magnetic field change information to the central control unit 500. After that, the central control unit 500 finally determines whether there is an intrusion based on the above magnetic field change information and the magnetic field change information detected by the first magnetic induction detection unit 300.

[0127] The above-mentioned second intermediate connecting member 423 serving as a spring between the second magnet member 421 and the second magnetic induction member 422 is used to reset the powered-off second magnet member 421 to move away from the second magnetic induction member 422 when the wind stops or the wind force is insufficient to start the wind power kinetic energy component 410, and the corresponding magnetic field change information will also be sent to the central control unit 500.

[0128] Of course, the above-mentioned power input member 412 and power output member 413 are not limited to the gear member and the tooth condition member, and can also be two piston members. Both piston members can move along the inner wall of the installation groove 120, and there is a sealed space between the two piston members. When the piston member serving as the power input member 412 undergoes a displacement change, the piston member serving as the power output member 413 will also follow it to undergo a displacement change.

[0129] In one solution, as Figure 3 and Figure 7 shown, the fence cable unit 200 includes M tension cables 210, where M is greater than or equal to one and is an integer;

[0130] The fence cable unit 200 further includes a guiding assembly 220. The guiding assembly 220 includes N guiding members. The guiding members are disposed near the ends of the tension cables 210 and cooperate with the tension cables 210 to guide the ends of the tension cables 210.

[0131] Wherein, when M is odd, N is equal to M minus one; when M is even, N is equal to M.

[0132] The above-mentioned guiding members are used to converge multiple tension cables 210 to better connect to the first magnet member 310. The guiding members can be fixed pulleys.

[0133] For the sake of easy understanding, the following takes the fixed pulley as an example for illustration. When the number of tension cables 210 is 1, the number of fixed pulleys is 0. When the number of tension cables 210 is 3, the number of fixed pulleys is 2. The tension cable 210 in the middle can be directly horizontally connected to the first magnet member 310. The tension cables 210 on the upper and lower sides of the middle tension cable 210 are guided by the fixed pulleys corresponding to them to generate angularly changed bends to better connect to the first magnet member 310. When the number of tension cables 210 is 2, the number of fixed pulleys is 2. The horizontal line where the first magnet member 310 is located is in the middle of the two tension cables 210. These two tension cables 210 are guided by the fixed pulleys corresponding to them to generate angularly changed bends to better connect to the first magnet member 310.

[0134] The above-mentioned fixed pulley can be indirectly installed on the railing unit 100 through an extension bracket to solve the problem that there is no installation point for the fixed pulley.

[0135] In addition, the above-mentioned guiding assembly 220 can further include a cable binding tube. The cable binding tube is wound around the ends of multiple tension cables 210 so that the multiple tension cables 210 can be converged to better connect to the first magnet member 310.

[0136] In the above-mentioned embodiment, as Figure 3 shown, the number of the first magnet member 310, the first magnetic induction member 320, and the first intermediate connecting member 330 can all be one;

[0137] The guiding assembly 220 further includes a restraint tube. The ends of the M tension cables 210 all pass through the restraint tube and are connected to the first magnet member 310. The restraint tube is arranged on the same horizontal line as the first magnet member 310.

[0138] But in another embodiment, as Figure 7 shown, the number of the first magnet member 310 and the first intermediate connecting member 330 can be the same as the number of the tension cables 210, and the number of the first magnetic induction members 320 can be one;

[0139] The first magnetic induction member 320 includes a frame body and a magnetic induction body disposed in the frame body. Both ends of each first magnet member 310 are respectively connected to each tension cable 210 and each intermediate connecting member, and each intermediate connecting member is connected to the frame body.

[0140] In this solution, the first magnetic induction member 320 can simultaneously detect the magnetic field changes caused by the displacements of the first magnet members 310 in multiple directions, and the detection effect will be more precise, avoiding the mutual interference between multiple tension cables 210 when there are multiple tension cables 210 and all the tension cables 210 are connected to the same first magnet member 310, which affects the subsequent detection results.

[0141] The above-mentioned frame body and the first magnetic induction member 320 can be indirectly fixed on the railing member unit 100 through an extension bracket to solve the installation problem.

[0142] In addition, the above-mentioned tension fence of a nuclear power plant based on the magnetic induction tension detection technology may further include a warning unit connected to the central control unit 500. The warning unit includes an alarm component and a display component.

[0143] The above-mentioned alarm component can be used to emit alarm signals such as alarm sounds or lights to achieve the purpose of warning and reminding. The above-mentioned display component can display alarm signals or display picture information related to the alarm, etc., for the monitoring personnel to timely understand the alarm information.

[0144] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0145] In addition, the above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, substitutions and improvements can still be made, and these should all be covered within the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the claims.

Claims

1. A tension fence for nuclear power plants based on magnetic induction tension detection technology, characterized in that Comprising: Fence railing member unit; Fence cable member unit, including at least one tension cable; First magnetic induction detection unit, connecting the fence cable member unit and the fence railing member unit, for detecting the tension change on the tension cable; Second magnetic induction detection unit, arranged on the fence railing member unit, for detecting the wind force change in the nearby area; Central control unit, configured to: Judge whether there is an intrusion behavior according to the detection result of the first magnetic induction detection unit and the matching degree of the detection result of the second magnetic induction detection unit.

2. The tension fence of a nuclear power plant based on the magnetic induction tension detection technology according to claim 1, characterized in that, The first magnetic induction detection unit includes: First magnet member, connected to the tension cable; First magnetic induction member, installed on the fence railing member unit, and matching with the first magnet member; First intermediate connecting member, with its two ends respectively connecting the first magnet member and the first magnetic induction member; Wherein, the first intermediate connecting member is a telescopically deformable member. When the first intermediate connecting member undergoes telescopic deformation, the first magnet member will approach or move away from the first magnetic induction member.

3. The tension fence for nuclear power plants based on the magnetic induction tension detection technology according to claim 2, wherein The second magnetic induction detection unit includes: Wind power kinetic energy component, for converting the wind force change into mechanical kinetic energy change; Magnetic detection component, cooperatively installed with the wind power kinetic energy component, for converting the mechanical kinetic energy change into magnetic field change.

4. The tension fence for nuclear power plants based on magnetic induction tension detection technology according to claim 3, characterized in that, The magnetic detection component includes: Second magnet member, connected to the output end of the wind power kinetic energy component; Second magnetic induction member, arranged to match with the second magnet member.

5. The tension fence of a nuclear power plant based on the magnetic induction tension detection technology according to claim 4, wherein The wind power kinetic energy component includes: Fan blade component, including a fan blade body and a rotating shaft member; Power component, including a power input member and a power output member; Wherein, the power component is configured to be cooperatively connected with the rotating shaft member. When the fan blade body rotates, the power input member will be driven, and finally the power will be transmitted to the power output member, causing a displacement change at the output end of the power output member; A through hole and an installation groove are formed on the fence railing member unit. The fan blade component is arranged in the through hole, and the power component and the magnetic detection component are both arranged in the installation groove.

6. The tension fence for nuclear power plants based on magnetic induction tension detection technology according to claim 5, characterized in that The power input member includes a gear member, the gear member is installed on the rotating shaft member, the power output member includes a toothed member that cooperates with the gear member, the end of the toothed member is connected to the second magnet member, and the second magnetic induction member is installed on the wall of the installation groove; The magnetic detection component further includes a second intermediate connecting member, with its two ends respectively connected to the second magnet member and the second magnetic induction member, and the second intermediate connecting member is a spring; When the fan blade body rotates under the action of wind force, the gear member connected to the rotating shaft member will rotate accordingly, and then drive the toothed member that cooperates with the gear member to have a displacement change. When the toothed member has a displacement change, it will push the second magnet member at its end to approach the second magnetic induction member, so that the second magnetic induction member detects the magnetic field change; when the wind force is below the preset value, under the action of the second intermediate connecting member, the second magnet member will move away from the second magnetic induction member.

7. The tension fence for nuclear power plants based on magnetic induction tension detection technology according to any one of claims 2-6, characterized in that The fence cable member unit includes M tension cables, where M is greater than or equal to one and is an integer; The fence cable unit further includes a guiding assembly, the guiding assembly includes N guiding members, the guiding members are arranged near the ends of the tension cables and cooperate with the tension cables to guide the ends of the tension cables; Wherein, when M is odd, N is equal to M minus one; when M is even, N is equal to M.

8. The tension fence for nuclear power plants based on the magnetic induction tension detection technology according to claim 7, characterized in that, The number of the first magnet member, the first magnetic induction member, and the first intermediate connecting member is all one; The guiding assembly further includes a restraining tube, the ends of the M tension cables all pass through the restraining tube and are connected to the first magnet member, and the restraining tube is arranged on the same horizontal line as the first magnet member.

9. The tension fence for nuclear power plants based on the magnetic induction tension detection technology according to claim 7, characterized in that, The number of the first magnet member and the first intermediate connecting member is the same as the number of the tension cables, and the number of the first magnetic induction member is one; The first magnetic induction member includes a frame body and a magnetic induction body arranged in the frame body. Both ends of each first magnet member are respectively connected to each tension cable and each intermediate connecting member, and each intermediate connecting member is connected to the frame body.

10. The tension fence of a nuclear power plant based on the magnetic induction tension detection technology according to claim 7, characterized in that, It further includes a warning unit connected to the central control unit, and the warning unit includes an alarm assembly and a display assembly.

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