A false alarm prevention device for a force-induced indirectly fixed sensing pile

Abstract

The utility model discloses a kind of indirectly fixed sensing pile false alarm prevention devices of force induction line, belong to sensing pile technical field, including sensing pile shell, the inner wall of sensing pile shell is fixedly connected with detection mechanism, and the upper surface of sensing pile shell is attached with protection mechanism, the detection mechanism includes fixed block fixedly connected in the inner wall of sensing pile shell, the output end of fixed block is fixedly connected with slider;The indirectly fixed sensing pile false alarm prevention device of force induction line, through the flexible attachment of rotating wheel under detection plate and induction line body, both avoid the rigidity restriction of induction line caused by direct clamping, and through small activity space reserved by rolling contact, environmental interference force such as wind blowing, slight vibration can be offset, prevent induction line from triggering by small displacement, simultaneously, filter connected to one end of induction line, can accurately filter electromagnetic interference, current fluctuation produces clutter signal, reduce false alarm from mechanical structure and electrical signal processing double level.

Description

Technical Field

[0001] This utility model relates to the field of sensor pile technology, specifically a sensor pile anti-false alarm device with indirectly fixed force sensing line. Background Technology

[0002] With the upgrading of demands in fields such as security monitoring, infrastructure protection, and ecological protection zone management, the need for real-time monitoring in outdoor scenarios is becoming increasingly urgent. Whether it is perimeter protection of residential communities and industrial parks, impact monitoring of facilities along highways and railways, or early warning of unauthorized entry into nature reserves, all require a detection device that can accurately identify the force of a target and respond promptly. Such devices need to be exposed to the outdoor environment for a long time, facing multiple environmental challenges such as rain erosion, dust accumulation, physical impact, and temperature changes. At the same time, they need to cope with complex interference factors such as wind swaying, slight ground vibration, and electromagnetic interference. Their stability, false alarm prevention capabilities, and ease of maintenance directly determine the monitoring effect and operating costs.

[0003] Existing devices lack dual anti-interference design in terms of both mechanical structure and electrical signal processing. Mechanically, rigid contact structures cannot counteract environmental interference forces, easily leading to false alarms triggered by minute displacements of sensing components, thus making it difficult to reduce false alarms.

[0004] To address this issue, the present invention provides a sensor pile anti-false alarm device with indirect fixed force sensing line to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sensor pile anti-false alarm device with indirect fixed force sensing line, which solves the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a false alarm prevention device for a sensor pile with an indirectly fixed force sensing line, comprising a sensor pile housing, a detection mechanism fixedly connected to the inner wall of the sensor pile housing, and a protective mechanism attached to the upper surface of the sensor pile housing. The detection mechanism includes a fixing block fixedly connected to the inner wall of the sensor pile housing, an electric telescopic rod fixedly connected to the lower surface of the fixing block, a slider fixedly connected to the output end of the electric telescopic rod, a pressure sensor embedded in the lower surface of the slider, a detection plate fixedly connected to the lower surface of the pressure sensor, a rotating wheel rotatably connected to the lower surface of the detection plate, and a sensing line body attached to the outer surface of the rotating wheel. The protective mechanism includes a cover plate attached to the upper surface of the sensor pile housing, a snap-fit ​​sleeve fixedly connected to the lower surface of the cover plate, and the outer surface of the snap-fit ​​sleeve snapping into the inner wall of the sensor pile housing.

[0007] Furthermore, a filter is fixedly connected to the inner wall of the sensor pile housing, one end of the sensing line body is electrically connected to the filter, and the outer surface of the sensing line body is slidably connected to the outer surface of the sensor pile housing.

[0008] By adopting the above technical solution, the electrical signal transmitted by the induction line body can be filtered through the electrical connection between the filter and the induction line body, effectively eliminating noise signals generated by environmental interference, reducing the false alarm rate at the signal source level, and ensuring the accuracy of the signal transmitted to the subsequent control components.

[0009] Furthermore, a limiting rod is fixedly connected to the upper surface of the detection plate, and the outer surface of the limiting rod is slidably connected to the outer surface of the slider.

[0010] By adopting the above technical solution, the vertical movement direction of the detection plate can be precisely limited through the sliding cooperation of the limiting rod and the slider, preventing the detection plate from shifting laterally or tilting when subjected to force, and ensuring that the detection plate always transmits the force to the pressure sensor vertically.

[0011] Furthermore, the inner wall of the sensor pile housing is provided with a sliding groove, and the outer surface of the slider is slidably connected to the inner side of the sliding groove.

[0012] By adopting the above technical solution, the groove provides a directional sliding track for the slider. On the one hand, the installation position of the slider in the groove can be adjusted according to actual detection needs, such as different induction line tensions and different external force detection ranges, thereby improving the adaptability of the detection mechanism. On the other hand, when the slider slides along the groove, it can maintain the overall stability of the detection mechanism, avoid the slider shaking from affecting the contact state between the pressure sensor, the detection plate and the induction line body, and ensure the stability of the detection process.

[0013] Furthermore, a controller body is fixedly connected to the inner wall of the sensor pile housing, and the controller body is electrically connected to the pressure sensor, the filter, and the electric telescopic rod via wires.

[0014] By adopting the above technical solution, the linkage control with the pressure sensor, filter and electric telescopic pole is realized through the wire. It can receive the detection signal of the pressure sensor and the processed signal of the filter in real time, quickly determine whether it is a valid alarm signal, and control the action of the electric telescopic pole according to the signal command.

[0015] Furthermore, the protective mechanism also includes a filter screen embedded in the outer surface of the sensor pile housing. The filter screen is symmetrically installed on the outer surface of the sensor pile housing, and the upper surface of the sensor pile housing is provided with mounting holes.

[0016] By adopting the above technical solution, the symmetrically installed filters can ensure air circulation between the inside and outside of the device while filtering dust and impurities in the air. This prevents dust from accumulating on the surface of electrical components such as controllers and filters, avoiding problems such as short circuits and poor heat dissipation caused by dust, and ensuring the safe operation of electrical components.

[0017] Beneficial effects

[0018] This invention provides a false alarm prevention device for sensor piles indirectly fixed by a force sensing line. Compared with the prior art, it has the following advantages:

[0019] 1. The indirect fixed sensor pile anti-false alarm device uses a rotating wheel under the detection plate to flexibly fit the sensor wire body. This avoids the rigidity limitation of the sensor wire caused by direct clamping, and the rolling contact provides a small space for movement, which can offset environmental interference forces such as wind and slight vibration, and prevent the sensor wire from being falsely triggered due to slight displacement. At the same time, the filter connected to one end of the sensor wire can accurately filter out electromagnetic interference and noise signals generated by current fluctuations, reducing false alarms from both mechanical structure and electrical signal processing levels.

[0020] 2. This indirect-fixed force-sensing pile anti-false alarm device uses a cover plate and snap-fit ​​sleeve to seal against rainwater, a filter screen to filter dust, and an outer shell to resist physical impact. This allows the device to operate stably in outdoor rainy, dusty, and collision-prone environments, reducing environmental damage and maintenance. The snap-fit ​​cover plate simplifies disassembly and assembly, allowing for tool-free maintenance. The mounting holes are modular and replaceable, reducing manual operation time. At the same time, it reduces the damage rate of core components and the cost of spare parts replacement, balancing protection and convenience. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the external structure of this utility model;

[0023] Figure 2 This is a front sectional view of the structure of this utility model;

[0024] Figure 3 This is a side sectional view of the structure of this utility model;

[0025] Figure 4 This is a top sectional view of the structure of this utility model.

[0026] In the diagram: 1. Sensor pile housing; 2. Protective mechanism; 201. Mounting hole; 202. Filter screen; 203. Cover plate; 204. Snap-fit ​​sleeve; 3. Detection mechanism; 301. Induction wire body; 302. Slide groove; 303. Filter; 304. Fixing block; 305. Electric telescopic rod; 306. Slider; 307. Pressure sensor; 308. Detection plate; 309. Rotating wheel; 310. Limiting rod; 4. Controller body. Detailed Implementation

[0027] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0028] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] Reference Figures 1 to 4 This application provides a false alarm prevention device for a sensor pile with an indirectly fixed force sensing line, including a sensor pile housing 1. A detection mechanism 3 is fixedly connected to the inner wall of the sensor pile housing 1, and a protective mechanism 2 is attached to the upper surface of the sensor pile housing 1. The detection mechanism 3 includes a fixing block 304 fixedly connected to the inner wall of the sensor pile housing 1. An electric telescopic rod 305 is fixedly connected to the lower surface of the fixing block 304. A slider 306 is fixedly connected to the output end of the electric telescopic rod 305. A pressure sensor 307 is embedded in the lower surface of the slider 306. A detection plate 308 is fixedly connected to the lower surface of the pressure sensor 307. A rotating wheel 309 is rotatably connected to the lower surface of the detection plate 308. A sensing line body 301 is attached to the outer surface of the rotating wheel 309. The protective mechanism 2 includes a cover plate 203 attached to the upper surface of the sensor pile housing 1. A snap-fit ​​sleeve 204 is fixedly connected to the lower surface of the cover plate 203. The outer surface of the snap-fit ​​sleeve 204 snaps into the inner wall of the sensor pile housing 1.

[0030] Furthermore, a filter 303 is fixedly connected to the inner wall of the sensor pile housing 1, one end of the sensing line body 301 is electrically connected to the filter 303, and the outer surface of the sensing line body 301 is slidably connected to the outer surface of the sensor pile housing 1. A limit rod 310 is fixedly connected to the upper surface of the detection plate 308, and the outer surface of the limit rod 310 is slidably connected to the outer surface of the slider 306. A groove 302 is provided on the inner wall of the sensor pile housing 1, and the outer surface of the slider 306 is slidably connected to the inner side of the groove 302.

[0031] Specifically, the rotating wheel 309 under the detection board 308 flexibly fits into the sensing line body 301, which avoids the rigidity limitation of the sensing line caused by direct clamping, and the rolling contact leaves a small space for movement, which can offset environmental interference forces such as wind and slight vibration, and prevent the sensing line from being falsely triggered due to slight displacement. At the same time, the filter 303 connected to one end of the sensing line can accurately filter out electromagnetic interference and noise signals generated by current fluctuations, reducing false alarms from both mechanical structure and electrical signal processing levels.

[0032] Reference Figures 1 to 4 In one aspect of this embodiment, a controller body 4 is fixedly connected to the inner wall of the sensor pile housing 1. The controller body 4 is electrically connected to the pressure sensor 307, the filter 303 and the electric telescopic rod 305 via wires.

[0033] Furthermore, the protective mechanism 2 also includes a filter screen 202 embedded in the outer surface of the sensor pile housing 1. The filter screen 202 is symmetrically installed on the outer surface of the sensor pile housing 1, and the upper surface of the sensor pile housing 1 is provided with mounting holes 201. The pressure sensor 307 model is Rosemount 3051CG2A22A1AB4K5M5, the filter 303 model is TDK SLF703255-101M1R5-PF, and the controller body 4 model is Siemens S7-1200 CPU.

[0034] Specifically, the cover plate 203 and the snap-fit ​​sleeve 204 seal against rainwater, the filter screen 202 filters dust, and the outer shell resists physical impact, allowing the device to operate stably in outdoor rainy, dusty, and collision-prone environments, reducing environmental damage and maintenance. The snap-fit ​​cover plate 203 simplifies disassembly and assembly, allowing for maintenance without tools. The mounting hole 201 is compatible with modular replacement, reducing manual operation time. At the same time, it reduces the damage rate of core components and the cost of spare parts replacement, balancing protection and convenience.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] Working principle: During installation, the sensor pile housing 1 is fixed to the monitoring area at the bottom. The sensing wire body 301 is laid along the monitoring path, with one end passing through the sensor pile housing 1 and electrically connected to the filter 303, and the other end extending to the monitoring endpoint. The cover plate 203 of the protective mechanism 2 is fixed to the housing by a snap-fit ​​sleeve 204, and the filter screen 202 is embedded in the surface of the housing to form complete protection. After the controller body 4 is powered on, the pressure detection threshold and signal filtering parameters are preset, and the device enters the detection state. When a target force occurs in the monitoring area, such as personnel touch, vehicle collision, or environmental interference, such as wind shaking or slight vibration, the sensing wire body 301 is displaced by the force. When the sensing wire body 301 displaces, its... The rotating wheel 309 on the outer surface of the detection plate 308 rolls in contact with the lower surface of the detection plate 308, causing the detection plate 308 to move upward or downward. When the detection plate 308 moves, the limiting rod 310 on the upper surface slides directionally along the outer surface of the slider 306 to ensure that the detection plate 308 transmits the force vertically. The detection plate 308 transmits the force to the pressure sensor 307 embedded in the lower surface of the slider 306. The pressure sensor 307 converts the mechanical signal into an electrical signal and transmits it to the controller body 4 through a wire. At the same time, the electrical signal generated by the sensing wire body 301 itself, such as the resistance or capacitance change signal caused by force deformation, is transmitted to the filter 303. The filter 303 performs noise reduction filtering on the signal and transmits it to the controller body 4 after removing noise. The controller body 4 receives the detection signal from the pressure sensor 307 and the processed signal from the filter 303, and performs a dual signal comparison. If the signal strength is lower than a preset threshold, it is determined to be environmental interference, such as a slight force caused by wind. The controller body 4 does not trigger an alarm. At the same time, the position of the slider 306 in the slide groove 302 can be adjusted by the electric telescopic rod 305, which drives the detection plate 308 and the rotating wheel 309 to reset, so that the sensing line body 301 returns to its initial contact state. If the signal strength is higher than the preset threshold, it is determined to be a valid target force. The controller body 4 immediately triggers an alarm command, such as sending an alarm signal to the terminal via the wireless module, activating the device's built-in audible and visual alarm, and recording the data. Data such as alarm time and signal strength facilitates later traceability. If the displacement of the sensing line body 301 is too large, the controller can control the electric telescopic rod 305 to assist in adjustment, preventing the sensing line from being excessively stretched and broken. During the operation of the device, the outer shell 1 of the sensing pile blocks external physical impacts, the cover plate 203 and the snap-fit ​​sleeve 204 prevent rainwater from entering, and the filter screen 202 filters dust in the air, all working together to ensure the stable operation of the internal components. During later maintenance, the cover plate 203 can be opened to inspect the controller, pressure sensor 307 and other components through the mounting hole 201, the sliding slider 306 can be used to adjust the position of the detection mechanism 3, or the worn rotating wheel 309 and sensing line body 301 can be replaced to ensure that the device can stably perform its anti-false alarm detection function for a long time.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A false alarm prevention device for a sensor pile indirectly fixed by a force sensing line, comprising a sensor pile housing (1), characterized in that: The inner wall of the sensor pile housing (1) is fixedly connected to a detection mechanism (3), and the upper surface of the sensor pile housing (1) is fitted with a protective mechanism (2). The detection mechanism (3) includes a fixing block (304) fixedly connected to the inner wall of the sensor pile housing (1). An electric telescopic rod (305) is fixedly connected to the lower surface of the fixing block (304). A slider (306) is fixedly connected to the output end of the electric telescopic rod (305). A pressure sensor (307) is embedded in the lower surface of the slider (306). A detection plate (308) is fixedly connected to the lower surface of the pressure sensor (307). A rotating wheel (309) is rotatably connected to the lower surface of the detection plate (308). The sensing wire body (301) is attached to the outer surface of the rotating wheel (309). The protective mechanism (2) includes a cover plate (203) that fits onto the upper surface of the sensor pile housing (1). A snap-fit ​​sleeve (204) is fixedly connected to the lower surface of the cover plate (203). The outer surface of the snap-fit ​​sleeve (204) snaps onto the inner wall of the sensor pile housing (1).

2. The false alarm prevention device for a sensor pile indirectly fixed by a force sensing line according to claim 1, characterized in that: A filter (303) is fixedly connected to the inner wall of the sensor pile housing (1). One end of the sensing line body (301) is electrically connected to the filter (303), and the outer surface of the sensing line body (301) is slidably connected to the outer surface of the sensor pile housing (1).

3. The false alarm prevention device for a sensor pile indirectly fixed by a force sensing line according to claim 2, characterized in that: A limiting rod (310) is fixedly connected to the upper surface of the detection plate (308), and the outer surface of the limiting rod (310) is slidably connected to the outer surface of the slider (306).

4. The false alarm prevention device for a sensor pile indirectly fixed by a force sensing line according to claim 3, characterized in that: The inner wall of the sensor pile housing (1) is provided with a sliding groove (302), and the outer surface of the slider (306) is slidably connected to the inner side of the sliding groove (302).

5. The false alarm prevention device for a sensor pile indirectly fixed by a force sensing line according to claim 4, characterized in that: The inner wall of the sensor pile housing (1) is fixedly connected to a controller body (4), and the controller body (4) is electrically connected to the pressure sensor (307), the filter (303) and the electric telescopic rod (305) through wires.

6. The false alarm prevention device for a sensor pile indirectly fixed by a force sensing line according to claim 1, characterized in that: The protective mechanism (2) also includes a filter screen (202) embedded in the outer surface of the sensor pile housing (1). The filter screen (202) is symmetrically installed on the outer surface of the sensor pile housing (1), and the upper surface of the sensor pile housing (1) is provided with mounting holes (201).

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