A system for managing overload without stopping the vehicle using a flat-plate dynamic truck scale

Abstract

The invention discloses a system for managing overload without stopping the vehicle by utilizing a flat-plate dynamic automobile scale. The system is arranged on a road surface to meet the requirement of a normal driving speed of an automobile, and the automobile does not need to slow down to pass. Two flat-plate dynamic automobile scales are arranged side by side in a driving lane in a horizontal direction, and front-end ground sensing coils and rear-end ground sensing coils are respectively arranged on both sides of the flat-plate dynamic automobile scale along the driving direction of the vehicle; a bottom frame of the flat-plate dynamic automobile scale is fixedly arranged in a shallow pit on the ground, two positioning devices are fixedly arranged on the bottom frame, a bearing platform is movably arranged on the bottom frame through the positioning devices, and weighing sensor assemblies are arranged on the four corners between the bearing platform and the bottom frame, and the four weighing sensor assemblies are used to monitor the weight of the automobile passing on the bearing platform; a junction box is electrically connected to the weighing sensor assembly, the front-end ground sensing coil, the rear-end ground sensing coil and the junction box are electrically connected to a sensor signal processor, and an electronic weighing meter is electrically connected to the sensor signal processor and a management computer respectively.

Description

Technical Field

[0001] The invention discloses a system for managing overload without stopping a vehicle by utilizing a flat-plate dynamic vehicle scale, and belongs to the technical field of overload management. Background Art

[0002] At present, in order to control overloading, a fixed overloading control point is usually set up on the highway or expressway entrance, which leads to frequent traffic congestion on these roads. Since the overloading control points are too scattered, many overloading vehicles will bypass the control points, and many overloading control points are in name only. Summary of the invention

[0003] The present invention overcomes the shortcomings of the prior art and provides a system for managing overload without stopping the vehicle by utilizing a flat dynamic vehicle scale. The system is arranged on the road surface and meets the requirements of normal vehicle driving speed. The system does not need to slow down to pass through, and overloaded vehicles have nowhere to hide.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a system for managing overload without stopping the vehicle by using a flat-plate dynamic truck scale, comprising a flat-plate dynamic truck scale, a front ground sensing coil, a rear ground sensing coil, a junction box, a ground sensing host, a sensor signal processor, an electronic weighing instrument and a management computer, two of the flat-plate dynamic truck scales are arranged side by side in a lane, and the front ground sensing coil and the rear ground sensing coil are respectively arranged on both sides of the flat-plate dynamic truck scale along the vehicle driving direction;

[0005] The structure of the flat plate dynamic automobile scale is as follows: it includes a bearing platform, a bottom frame, a weighing sensor assembly and a positioning device, the bottom frame is fixedly arranged in a shallow pit on the ground, two positioning devices are fixedly arranged on the bottom frame, the bearing platform is movably arranged on the bottom frame through the positioning device, and weighing sensor assemblies are arranged on the four corners between the bearing platform and the bottom frame, and the four weighing sensor assemblies are used to monitor the weight of the automobile passing on the bearing platform;

[0006] The structure of the positioning device includes: an upper cover plate, a connecting plate, a U-shaped groove, a base, a guide rod, a steel ball and a limit plate, wherein the upper cover plate is matched and arranged in a reserved through hole of the bearing platform and is flush with the upper surface of the bearing platform, the connecting plate is located directly below the upper cover plate, and the connecting plate and the bearing platform are connected together by a connecting piece, the base is fixedly arranged on the bottom frame, and three U-shaped grooves are distributed in a U-shaped manner on the base, and the three U-shaped grooves are all facing inward, and a steel ball is arranged in each of the U-shaped grooves, the limit plate is arranged at the U-shaped opening composed of the three U-shaped grooves, and the limit plate cooperates with the three steel balls to form a square vertical guide hole structure, the guide rod is matched and arranged in the vertical guide hole structure, and the upper end of the guide rod is fixedly arranged on the connecting plate, and a gap is left between the upper side of the U-shaped groove and the connecting plate, so that the connecting plate can only move up and down along the vertical guide hole structure together with the bearing platform and the guide rod;

[0007] The junction box is electrically connected to the weighing sensor assembly, the front-end ground sensing coil, the rear-end ground sensing coil and the junction box are all electrically connected to the sensor signal processor, and the electronic weighing instrument is electrically connected to the sensor signal processor and the management computer respectively.

[0008] The direction of the connection line between the two positioning devices is the direction of the weighed car. The limit plate is located in the direction of the weighed car and is located on the outside of the positioning device. The limit plate is in the shape of a right-angle trapezoid and is used to resist the friction force applied by the weighed car to the load-bearing platform.

[0009] The weighing sensor comprises: a sensor top block, an O-shaped rubber sealing ring for hydraulic and pneumatic operation, a base support and a sensor body. The lower end of the base support passes through a bottom frame and is fixedly arranged underground. The lower side of the sensor top block is fixedly arranged at the upper end of the base support. The sensor body is matchedly arranged on the sensor top block. An O-shaped rubber sealing ring for hydraulic and pneumatic operation is arranged between the sensor top block and the sensor body.

[0010] The bottom side and the side sides of the bottom frame are fixed underground by anchor rods or screw rods.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the present invention is arranged on the road surface, and the positioning device constrains the load-bearing platform to only move up and down. When a car drives onto the load-bearing platform, the load-bearing platform will not be forced to move in the direction of friction, thus meeting the normal driving speed requirement of the car, and there is no need to slow down to pass, leaving overloaded vehicles nowhere to hide. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a cross-sectional view of the flat-plate dynamic truck scale in the present invention.

[0015] Figure 3 It is a top view of the flat-plate dynamic truck scale in the present invention.

[0016] Figure 4 It is a side view of the flat-plate dynamic truck scale in the present invention.

[0017] Figure 5 for Figure 2 A partial enlarged view of the positioning device in area A.

[0018] Figure 6 for Figure 2 A partial enlarged view of the weighing sensor assembly in area B.

[0019] In the figure: 1 is a bearing platform, 2 is a bottom frame, 3 is a weighing sensor assembly, 31 is a sensor top block, 32 is an O-shaped rubber sealing ring for hydraulic and pneumatic, 33 is a basic support, 34 is a sensor body, 4 is a positioning device, 41 is an upper cover plate, 42 is a connecting plate, 43 is a U-shaped groove, 44 is a base, 45 is a limit plate, 46 is a guide rod, and 47 is a steel ball. DETAILED DESCRIPTION

[0020] like Figure 1 to Figure 6 As shown, the present invention is a system for managing overload without stopping the vehicle by using a flat-plate dynamic truck scale, comprising a flat-plate dynamic truck scale, a front ground sensing coil, a rear ground sensing coil, a junction box, a ground sensing host, a sensor signal processor, an electronic weighing instrument and a management computer, two of the flat-plate dynamic truck scales are arranged side by side in a lane, and the front ground sensing coil and the rear ground sensing coil are respectively arranged on both sides of the flat-plate dynamic truck scale along the vehicle driving direction;

[0021] The structure of the flat plate dynamic automobile scale is as follows: it includes a bearing platform 1, a bottom frame 2, a weighing sensor assembly 3 and a positioning device 4, the bottom frame 2 is fixedly arranged in a shallow pit on the ground, two positioning devices 4 are fixedly arranged on the bottom frame 2, the bearing platform 1 is movably arranged on the bottom frame 2 through the positioning device 4, and weighing sensor assemblies 3 are arranged on the four corners between the bearing platform 1 and the bottom frame 2, and the four weighing sensor assemblies 3 are used to monitor the weight of the automobile passing on the bearing platform 1;

[0022] The structure of the positioning device 4 includes: an upper cover plate 41, a connecting plate 42, a U-shaped groove 43, a base 44, a limiting plate 45, a guide rod 46 and a steel ball 47. The upper cover plate 41 is matched and arranged in the reserved through hole of the bearing platform 1 and is flush with the upper surface of the bearing platform 1. The connecting plate 42 is located directly below the upper cover plate 41, and the connecting plate 42 and the bearing platform 1 are connected together by a connecting piece. The base 44 is fixedly arranged on the bottom frame 2, and three U-shaped grooves 43 are arranged in a U-shaped distribution on the base 44, and the three U-shaped grooves 43 are all facing Towards the inside, a steel ball 47 is arranged in each of the U-shaped grooves 43, and the limiting plate 45 is arranged at the U-shaped opening formed by the three U-shaped grooves 43. The limiting plate 45 cooperates with the three steel balls 47 to form a square vertical guide hole structure, and the guide rod 46 is matched and arranged in the vertical guide hole structure. The upper end of the guide rod 46 is fixedly arranged on the connecting plate 42, and a gap is left between the upper side of the U-shaped groove 43 and the connecting plate 42, so that the connecting plate 42 can only move up and down along the vertical guide hole structure together with the bearing platform 1 and the guide rod 46;

[0023] The junction box is electrically connected to the weighing sensor assembly 3, the front-end ground sensing coil, the rear-end ground sensing coil and the junction box are all electrically connected to the sensor signal processor, and the electronic weighing instrument is electrically connected to the sensor signal processor and the management computer respectively.

[0024] The direction of the connection line between the two positioning devices 4 is the direction of the weighed car, the limit plate 45 is located in the direction of the weighed car, and the limit plate 45 is located on the outside of the positioning device 4. The limit plate 45 is in the shape of a right-angled trapezoid and is used to resist the friction force applied by the weighed car to the load-bearing platform 1.

[0025] The weighing sensor 3 includes: a sensor top block 31, an O-shaped rubber sealing ring 32 for hydraulic and pneumatic operation, a base support 33 and a sensor body 34. The lower end of the base support 33 passes through the bottom frame 2 and is fixedly set underground. The lower side of the sensor top block 31 is fixedly set at the upper end of the base support 33. The sensor body 34 is matched and set on the sensor top block 31. An O-shaped rubber sealing ring 32 for hydraulic and pneumatic operation is set between the sensor top block 31 and the sensor body 34.

[0026] The bottom side and the side sides of the bottom frame 2 are fixed underground by anchor rods or screw rods.

[0027] The working principle of the present invention is as follows: the front-end ground sensing coil senses the vehicle's approach, and the sensor signal processor receives the signal feedback transmitted by the ground sensing host and performs pre-processing. The vehicle axle passes through a group of flat-plate dynamic vehicle scale load-bearing devices arranged side by side, and the weighing sensor of the load-bearing device collects the signal through the junction box to the sensor signal processor, and the sensor signal processor collects the electrical signals of the two scales into one axle weight information. The sensor signal processor uses a preset comprehensive data processing program to comprehensively process the data of the weighing sensor during the vehicle's passage, and calculates the single-axle axle weight, number of axles, total vehicle weight, axle type, vehicle speed and other data.

[0028] The motion state of the vehicle during dynamic weighing is quite complex. When the vehicle passes through the dynamic truck scale, the force on the sensor can be divided into two parts. One is the static load of the vehicle, that is, the weight load shared by the vehicle on the current axle; the other is the dynamic load of the vehicle, which is mainly composed of the vibration of the vehicle itself, the vibration caused by the uneven road surface, and the vibration caused by the coupling between the wheel and the surface. The dynamic load appears as noise during the weighing process and is the main factor affecting the weighing accuracy. When the vehicle passes through the dynamic truck scale, the sensor signal processor performs fast Fourier transform and deep digital filtering on the signal collected by the sensor. After removing the noise interference, the weight of the stable band within the threshold judgment interval of the upper and lower scales is integrated, and the average value obtained can be used as the axle weight passed. After the whole vehicle passes, the weight of the whole vehicle can be obtained by summing the number and type of axles identified.

[0029] When the vehicle completely passes through the rear ground sensor coil, the signal processor transmits the weighing result, identified vehicle type, vehicle speed and other information to the electronic weighing instrument for further processing, storage and display, and transmits the weighing result to the management computer as needed.

[0030] The present invention is arranged on the road surface, and the positioning device 4 constrains the load-bearing platform 1 to only move up and down. When a car drives onto the load-bearing platform 1, the load-bearing platform 1 will not be forced to move in the direction of friction, thereby meeting the normal driving speed requirement of the car, and there is no need to slow down to pass, leaving overloaded cars nowhere to hide.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A system that uses a flat-plate dynamic truck scale to manage overload without stopping the vehicle, characterized in that: It includes a flat plate dynamic vehicle scale, a front ground sensing coil, a rear ground sensing coil, a junction box, a ground sensing host, a sensor signal processor, an electronic weighing instrument and a management computer. Two flat plate dynamic vehicle scales are arranged side by side in a lane, and the front ground sensing coil and the rear ground sensing coil are respectively arranged on both sides of the flat plate dynamic vehicle scale along the vehicle driving direction; The structure of the flat-plate dynamic automobile scale is as follows: it comprises a bearing platform (1), a bottom frame (2), a weighing sensor assembly (3) and a positioning device (4); the bottom frame (2) is fixedly arranged in a shallow pit on the ground; two positioning devices (4) are fixedly arranged on the bottom frame (2); the bearing platform (1) is movably arranged on the bottom frame (2) via the positioning devices (4); weighing sensor assemblies (3) are arranged at the four corners between the bearing platform (1) and the bottom frame (2); the four weighing sensor assemblies (3) are used to monitor the weight of the automobile passing over the bearing platform (1); The structure of the positioning device (4) comprises: an upper cover plate (41), a connecting plate (42), a U-shaped groove (43), a base (44), a limiting plate (45), a guide rod (46) and a steel ball (47); the upper cover plate (41) is matched and arranged in a reserved through hole of the bearing platform (1) and is flush with the upper surface of the bearing platform (1); the connecting plate (42) is located directly below the upper cover plate (41), and the connecting plate (42) and the bearing platform (1) are connected together by a connecting piece; the base (44) is fixedly arranged on the bottom frame (2); three U-shaped grooves (43) are arranged in a U-shaped manner on the base (44); the three U-shaped grooves (43) are all facing inward, each of the U-shaped grooves (43) is provided with a steel ball (47), the limiting plate (45) is arranged at the U-shaped opening formed by the three U-shaped grooves (43), the limiting plate (45) and the three steel balls (47) cooperate to form a square vertical guide hole structure, the guide rod (46) is matched and arranged in the vertical guide hole structure, the upper end of the guide rod (46) is fixedly arranged on the connecting plate (42), and a gap is left between the upper side of the U-shaped groove (43) and the connecting plate (42), so that the connecting plate (42) can only move up and down along the vertical guide hole structure together with the bearing platform (1) and the guide rod (46); The junction box is electrically connected to the weighing sensor assembly (3), the front-end ground sensing coil, the rear-end ground sensing coil and the junction box are all electrically connected to the sensor signal processor, and the electronic weighing instrument is electrically connected to the sensor signal processor and the management computer respectively.

2. The system for managing overload without stopping the vehicle using a flat-plate dynamic vehicle scale according to claim 1 is characterized in that: The direction of the line connecting the two positioning devices (4) is the direction of the vehicle being weighed, the limiting plate (45) is located in the direction of the vehicle being weighed, and the limiting plate (45) is located outside the positioning device (4), and the limiting plate (45) is in the shape of a right-angled trapezoid, and is used to resist the friction force applied by the vehicle being weighed to the bearing platform (1).

3. The system for managing overload without stopping the vehicle using a flat-plate dynamic vehicle scale according to claim 1 is characterized in that: The weighing sensor assembly (3) comprises: a sensor top block (31), an O-shaped rubber sealing ring (32) for hydraulic and pneumatic operation, a base support (33) and a sensor body (34); the lower end of the base support (33) passes through the bottom frame (2) and is fixedly arranged underground; the lower side of the sensor top block (31) is fixedly arranged on the upper end of the base support (33); the sensor body (34) is matchedly arranged on the sensor top block (31); and an O-shaped rubber sealing ring (32) for hydraulic and pneumatic operation is arranged between the sensor top block (31) and the sensor body (34).

4. The system for managing overload without stopping the vehicle using a flat-plate dynamic vehicle scale according to claim 1 is characterized in that: The bottom side and the side sides of the bottom frame (2) are fixed underground by anchor rods or screw rods.

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