Bridge abnormal data trend judgment device

Abstract

The invention relates to the technical field of safety monitoring, and discloses a device for judging the trend of abnormal data of a bridge, comprising a displacement sensor, a weighing area and a camera arranged on the bridge, wherein the displacement sensor monitors the fluctuation data of the bridge; two weighing sensors are arranged in the weighing area, and an induction coil is arranged in the weighing area, and the induction coil is located between the two weighing sensors; the camera is arranged in front of the weighing area, and the camera captures images of vehicles passing through the weighing area; the weighing sensor, the induction coil and the camera transmit data to a background control center through a wireless network; the fluctuation data of the bridge is monitored by the displacement sensor, and the weight of the vehicles passing through the weighing area is monitored by the weighing sensor. When the displacement sensor detects that the bridge has abnormal fluctuation data in a certain period of time, the background control center determines whether the vehicles passing through the weighing area in the period of time are overweight, and then determines the factors causing the fluctuation data, so as to judge the trend of the abnormal data of the bridge.

Description

Technical Field

[0001] The patent of this invention relates to the technical field of safety monitoring, specifically, to a device for judging the trend of abnormal data of bridges. Background Art

[0002] A bridge is a structure built to cross natural or artificial obstacles. It is built on rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. A bridge is generally composed of a superstructure, a substructure, and ancillary structures. The superstructure mainly refers to the span structure and support system; the substructure includes abutments, piers, and foundations; and the ancillary structures refer to the bridgehead slab, conical slope protection, revetment, diversion engineering, etc. Bridges are divided into four basic systems according to the structural system: beam bridges, arch bridges, rigid frame bridges, and cable-supported bridges (suspension bridges, cable-stayed bridges).

[0003] At present, bridges are common traffic structures for vehicle transportation. The traffic volume is very large, and some large transport vehicles are often overloaded, which poses a great safety hazard to the bridges.

[0004] In the prior art, in order to maintain safety, bridges are often monitored for safety, especially the fluctuating data of bridges due to the influence of wind or other environmental factors. This can play a role in monitoring the safety of bridges. However, due to the vibration caused by the pressure of overloaded vehicles on the bridge, the bridge is also prone to fluctuations. In this way, it is difficult for supervisors to determine whether the fluctuating data of the bridge is caused by overloaded vehicles or the bridge itself, and it is difficult to judge the trend of abnormal data of the bridge. Summary of the invention

[0005] The purpose of the present invention is to provide a device for judging the trend of abnormal bridge data, aiming to solve the problem in the prior art that supervisors are unable to judge the trend of abnormal bridge data.

[0006] The present invention is implemented as follows: a device for judging the trend of abnormal data of a bridge comprises a displacement sensor, a weighing area and a camera arranged on the bridge, wherein the displacement sensor monitors the fluctuation data of the bridge; two weighing sensors are arranged in the weighing area, and the two weighing sensors are arranged at intervals along the driving direction of the vehicle on the bridge, and the weighing sensors are extended along the width direction of the bridge; an induction coil is arranged in the weighing area, and the induction coil is located between the two weighing sensors; the camera is arranged in front of the weighing area, and the camera captures images of vehicles passing through the weighing area; the weighing sensor, the induction coil and the camera transmit data to a background control center via a wireless network; when the displacement sensor detects that the bridge has abnormal fluctuation data in a certain period of time, the background control center determines whether the vehicles passing through the weighing area in the period of time are overweight.

[0007] Furthermore, the displacement sensor is arranged at the bottom of the weighing area and is aligned with the weighing sensor in an up-and-down manner.

[0008] Furthermore, a visualized three-dimensional model of the bridge is established in the background control center, and the fluctuation data monitored by the displacement sensor is embedded in the three-dimensional model and displayed.

[0009] Furthermore, two grooves are provided in the weighing area, and the two grooves are arranged at intervals along the driving direction of the vehicle on the bridge, and the grooves are extended along the width direction of the bridge; the weighing sensor is placed in the groove, and the groove is covered with a covering layer, and the covering layer is arranged flush with the weighing area.

[0010] Furthermore, the bottom of the groove is filled with a lower glue layer, and both sides of the lower glue layer extend upward to form glue side walls. The weighing sensor abuts on the lower glue layer, and both sides of the weighing sensor abut against the glue side walls.

[0011] Furthermore, the sealing layer is an upper rubber layer filled in the upper part of the groove, and along the top-down direction, the two side walls of the upper rubber layer are arranged inclined toward each other, and the bottom of the upper rubber layer abuts against the weighing sensor; the upper rubber layer and the lower rubber layer fill the entire groove.

[0012] Furthermore, a plurality of metal sheets are provided at the bottom of the upper rubber layer, and the plurality of metal sheets are arranged at intervals along the length direction of the upper rubber layer; both sides of the metal sheet extend to the two side walls of the upper rubber layer to form a side wall section attached to the side wall of the upper rubber layer; the bottom of the metal sheet protrudes downward to form a protrusion, and the protrusion abuts against the weighing sensor.

[0013] Furthermore, a metal strip is provided in the upper glue layer, and the metal strip is extended along the length direction of the upper glue layer. The bottom of the metal strip is exposed at the bottom of the upper glue layer and is fixedly connected to the tops of the plurality of metal sheets respectively.

[0014] Furthermore, a suspension rod extending along the width of the bridge is provided in front of the weighing area, and the suspension rod is located above the bridge; both ends of the suspension rod have horizontal sections arranged horizontally, and the middle part of the suspension rod has a curved section bent in an arc shape downward, and both ends of the curved section are connected to the horizontal section; the cameras are respectively provided on the horizontal section and the curved section, and the cameras are arranged facing downward to the weighing area.

[0015] Furthermore, the induction coil has two induction sides respectively facing the weighing sensor, the middle part of the induction side is bent and protruded toward the weighing sensor to form a triangular middle part, the triangular middle part has a triangular end, and the triangular end is arranged toward the weighing sensor; the induction side has a straight side located outside the triangular middle part, and the straight side is arranged parallel to the weighing sensor.

[0016] Compared with the prior art, the device for judging the trend of abnormal data of a bridge provided by the present invention monitors the fluctuation data of the bridge through a displacement sensor, and monitors the weight of vehicles passing through the weighing area through a weighing sensor. When the background control center detects through the displacement sensor that the fluctuation data of the bridge in a certain period is abnormal, it judges whether the vehicles passing through the bridge in the period are overweight, and then judges the factors causing the fluctuation data, so as to judge the trend of the abnormal data of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the device for judging the abnormal data trend of a bridge provided by the present invention;

[0018] Figure 2 is a schematic front view of the interior of the installation slot provided by the present invention;

[0019] Figure 3 It is a front schematic diagram of the suspension rod provided by the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] Reference Figure 1-3 The figure shows a preferred embodiment of the present invention.

[0024] The device for judging the trend of abnormal data of a bridge includes a displacement sensor, a weighing area and a camera arranged on the bridge 500. The displacement sensor monitors the fluctuation data of the bridge 500. The displacement sensor transmits the fluctuation data of the bridge 500 to the background control center via a wireless network. In this way, the fluctuation data of the bridge 500 can be directly monitored through the displacement sensor.

[0025] A weighing area is set on the bridge 500, and two weighing sensors are arranged in the weighing area. The two weighing sensors are arranged at intervals along the driving direction of the vehicle on the bridge 500, and the weighing sensors are extended along the width direction of the bridge 500; an induction coil 200 is provided in the weighing area, and the induction coil 200 is located between the two weighing sensors; the weighing sensor can monitor the weight of the vehicle passing on the bridge 500 to determine whether the vehicle is overweight. In addition, by setting the induction coil 200, when the vehicle passes above the induction coil 200, the metal chassis of the vehicle and the induction coil 200 are mutually inductively connected, so that the driving direction of the vehicle can be determined.

[0026] The camera 301 is arranged in front of the weighing area, and the camera 301 captures images of vehicles passing through the weighing area; the weighing sensor, the induction coil 200 and the camera 301 transmit data to the background control center through the wireless network; when the displacement sensor detects that the bridge 500 has abnormal fluctuation data within a certain period of time, the background control center determines whether the vehicles passing through the weighing area within the period of time are overweight.

[0027] The above-mentioned device for judging the abnormal data trend of the bridge monitors the fluctuation data of the bridge through a displacement sensor, and monitors the weight of the vehicles passing through the weighing area through a weighing sensor. When the background control center monitors through the displacement sensor that the fluctuation data of the bridge 500 in a certain period is abnormal, it judges whether the vehicles passing through the bridge 500 in this period are overweight, and then judges the factors causing the fluctuation data, so as to judge the abnormal data trend of the bridge 500.

[0028] When a vehicle passing through the weighing area within the time period is overweight, the background control center calculates whether the difference between the vehicle fluctuation data and the abnormal fluctuation data of the bridge 500 caused by the overweight vehicle is within a set range.

[0029] The displacement sensor is arranged at the bottom of the weighing area and aligned with the weighing sensor in an up-and-down manner, so that the monitored fluctuation data and the vehicle weight data are in the same position, which facilitates the correct judgment of the trend of abnormal data.

[0030] In this way, when the difference is not within the set range, the abnormal fluctuation data may be caused by other reasons. Only when the difference is within the set range can it be determined that the abnormal fluctuation data is caused by vehicle overloading. In this way, accurate judgment of abnormal data of Bridge 500 is guaranteed.

[0031] A visualized three-dimensional model of the bridge 500 is established in the background control center, and the fluctuation data monitored by the displacement sensor is embedded in the three-dimensional model and displayed. In this way, the status of the bridge 500 can be monitored directly by observing the data changes of the three-dimensional model in the background control center.

[0032] Two grooves are provided in the weighing area. The two grooves are arranged at intervals along the direction of the vehicle traveling on the bridge 500, and the grooves are arranged along the width direction of the bridge 500. The weighing sensor is placed in the groove, and the groove is covered with a cover layer, which is arranged flush with the weighing area. When the vehicle passes over the weighing sensor, it will press the weighing sensor downward, so that the weight of the vehicle can be measured through pressure data.

[0033] The bottom of the groove is filled with a lower rubber layer 101, and the two sides of the lower rubber layer 101 extend upward to form rubber side walls. The weighing sensor abuts on the lower rubber layer 101, and the two sides of the weighing sensor abut against the rubber side walls. The lower rubber layer 101 and the rubber side walls support and protect the weighing sensor. When the weighing sensor is squeezed, the movement of the weighing sensor can be buffered to avoid damage to the weighing sensor. In addition, the rubber side walls are formed on both sides of the weighing sensor, and together with the lower rubber layer 101, they form a surrounding and abutting protection for the weighing sensor.

[0034] The cover layer is an upper rubber layer 100 filling the upper part of the slot. From top to bottom, the two side walls of the upper rubber layer 100 are arranged to be inclined toward each other, and the bottom of the upper rubber layer 100 abuts against the weighing sensor. The upper rubber layer 100 and the lower rubber layer 101 fill the entire slot. In this way, the entire slot is filled by the upper rubber layer 100 and the lower rubber layer 101, and the weighing sensor is wrapped between the upper rubber layer 100 and the lower rubber layer 101, which can protect the weighing sensor and play a buffering role for the weighing sensor.

[0035] A plurality of metal sheets 105 are provided at the bottom of the upper rubber layer 100, and the plurality of metal sheets 105 are arranged at intervals along the length direction of the upper rubber layer 100; both sides of the metal sheet 105 extend to the two side walls of the upper rubber layer 100 to form a side wall section 104 attached to the side wall of the upper rubber layer 100; the bottom of the metal sheet 105 protrudes downward to form a protrusion 103, and the protrusion 103 abuts against the weighing sensor.

[0036] A metal sheet 105 is provided at the bottom of the upper rubber layer 100, which can support and limit the upper rubber layer 100. When the vehicle presses against the upper rubber layer 100, the metal sheet 105 is driven to press against the weighing sensor through the deformation of the upper rubber layer 100, and the pressing effect is more direct. The side wall segments 104 on both sides of the metal sheet 105 are attached to the two side walls of the upper rubber layer 100, which can limit the deformation of the upper rubber layer 100, so that the upper rubber layer 100 can more directly transfer the pressure to the metal sheet 105, and then press against the weighing sensor.

[0037] A metal strip 102 is provided in the upper rubber layer 100, and the metal strip 102 is extended and arranged along the length direction of the upper rubber layer 100. The bottom of the metal strip 102 is exposed at the bottom of the upper rubber layer 100, and is respectively fixedly connected to the top of a plurality of metal sheets 105. By providing the metal strip 102, and the metal strip 102 is fixedly connected to the plurality of metal sheets 105, the entire upper rubber layer 100, the plurality of metal sheets 105 and the metal strip 102 are integrally fixed together. When a vehicle is pressed against a portion of the upper rubber layer 100, the entire upper rubber layer 100 is linked by the action of the metal strip 102 and the metal sheet 105, so that the weighing sensor can more accurately measure the weight of the vehicle.

[0038] A suspension rod 302 extending along the width of the bridge 500 is provided in front of the weighing area, and the suspension rod 302 is located above the bridge 500; both ends of the suspension rod 302 have horizontal sections 3021 arranged horizontally, and the middle part of the suspension rod 302 has a curved section 3022 curved downward, and both ends of the curved section 3022 are connected to the horizontal section 3021; ​​cameras 301 are respectively provided on the horizontal section 3021 and the curved section 3022, and the cameras 301 are arranged facing downward to the weighing area.

[0039] Since the heights and speeds of various vehicles are different, the suspension rod 302 can be provided with horizontal sections 3021 and curved sections 3022, so that cameras 301 of different heights can be arranged to capture license plates of various types of vehicles at various angles.

[0040] The induction coil 200 has two induction sides respectively facing the weighing sensor, the middle part of the induction side is bent and protruded toward the weighing sensor to form a triangular middle part, the triangular middle part has a triangular end 2001, and the triangular end 2001 is arranged toward the weighing sensor; the induction side has a straight side located outside the triangular middle part, and the straight side is arranged parallel to the weighing sensor.

[0041] In this way, by providing the triangular end 2001, the induction coil 200 can more easily judge the direction of the vehicle and better sense the speed of the vehicle.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for judging the trend of abnormal bridge data, characterized in that: It includes a displacement sensor, a weighing area and a camera arranged on the bridge, wherein the displacement sensor monitors the fluctuation data of the bridge; two weighing sensors are arranged in the weighing area, and the two weighing sensors are arranged at intervals along the driving direction of the vehicle on the bridge, and the weighing sensors are arranged extending along the width direction of the bridge; an induction coil is arranged in the weighing area, and the induction coil is located between the two weighing sensors; the camera is arranged in front of the weighing area, and the camera takes images of vehicles passing through the weighing area; the weighing sensor, the induction coil and the camera transmit data to the background control center through a wireless network; when the displacement sensor detects that the bridge has abnormal fluctuation data in a certain period of time, the background control center determines whether the vehicles passing through the weighing area in this period of time are overweight; Two grooves are provided in the weighing area, and the two grooves are arranged at intervals along the driving direction of the vehicle on the bridge, and the grooves are extended along the width direction of the bridge; the weighing sensor is placed in the groove, and the groove is covered with a covering layer, and the covering layer is arranged flush with the weighing area; The bottom of the groove is filled with a lower glue layer, and the two sides of the lower glue layer extend upward to form glue side walls. The weighing sensor abuts on the lower glue layer, and the two sides of the weighing sensor abut against the glue side walls. The capping layer is an upper glue layer filled on the upper part of the groove bar, and along the top-to-bottom direction, the two side walls of the upper glue layer are arranged to be inclined toward each other, and the bottom of the upper glue layer abuts against the weighing sensor; A plurality of metal sheets are provided at the bottom of the upper rubber layer, and the plurality of metal sheets are arranged at intervals along the length direction of the upper rubber layer; both sides of the metal sheets extend to the two side walls of the upper rubber layer to form side wall sections attached to the side walls of the upper rubber layer; the bottom of the metal sheet protrudes downward to form a protrusion, and the protrusion abuts against the weighing sensor.

2. The device for determining the abnormal bridge data trend according to claim 1, characterized in that: The displacement sensor is arranged at the bottom of the weighing area and is aligned with the weighing sensor in an up-and-down manner.

3. The device for determining the trend of abnormal bridge data according to claim 1 or 2, characterized in that: A visualized three-dimensional model of the bridge is established in the background control center, and the fluctuation data monitored by the displacement sensor is embedded in the three-dimensional model and displayed.

4. The device for determining the trend of abnormal bridge data according to claim 3, characterized in that: A metal strip is arranged in the upper glue layer, and the metal strip is extended along the length direction of the upper glue layer. The bottom of the metal strip is exposed at the bottom of the upper glue layer and is fixedly connected to the tops of the plurality of metal sheets respectively.

5. The device for determining the trend of abnormal bridge data according to claim 3, characterized in that: A suspension rod extending along the width of the bridge is provided in front of the weighing area, and the suspension rod is located above the bridge; both ends of the suspension rod have horizontal sections arranged horizontally, and the middle part of the suspension rod has a curved section curved downward, and both ends of the curved section are connected to the horizontal section; the cameras are respectively provided on the horizontal section and the curved section, and the cameras are arranged facing downward to the weighing area.

6. The device for determining the trend of abnormal bridge data according to claim 3, characterized in that: The induction coil has two induction sides respectively facing the weighing sensor, the middle part of the induction side is bent and protruded toward the weighing sensor to form a triangular middle part, the triangular middle part has a triangular end, and the triangular end is arranged toward the weighing sensor; the induction side has a straight side located outside the triangular middle part, and the straight side is arranged parallel to the weighing sensor.

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