Dynamic weighing system layout structure of strip-shaped weighing sensor and road structure
By optimizing the layout structure of the bar weighing sensor and using multiple rows of sensors with interlaced settings, the vehicle judgment errors and weighing errors caused by abnormal vehicle driving are solved, and higher weighing accuracy and anti-cheating ability are achieved.
Patent Information
- Application Number
- CN202422123002.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The existing dynamic weighing system of strip weighing sensors is prone to vehicle model judgment errors and large weighing errors when driving abnormally such as stopping and stopping of vehicles, which affects the traffic order of the expressway entrance.
The special layout structure of the first weighing unit, the second weighing unit and the third weighing unit are adopted, including a single row sensor perpendicular to the lane and a multi-row parallel sensor arranged in an interlaced manner. By adjusting the sensor spacing to ensure accurate identification of the vehicle coupling, the dependence on additional vehicle model identification equipment is reduced.
It improves the accuracy and cheating ability of the weighing system under abnormal driving conditions, and reduces system costs.
Smart Images
Figure CN223283743U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle dynamic weighing, and in particular to a layout structure of a dynamic weighing system of a bar-type weighing sensor and a road structure. Background Art
[0002] Typically, static weighing scales are installed at highway toll booth entrances to check the weight of trucks entering the highway. This prevents overloaded vehicles from entering the highway, which could pose a traffic safety hazard, and mitigates road damage caused by overloading. However, since trucks must slow down or even stop when passing the weighing scales, this can easily lead to congestion at the toll booths, reducing traffic efficiency. To address this, some technologies have proposed using dynamic weighing to replace static weighing for trucks entering highways. These technologies employ multiple rows of bar load cells at the entrance of a highway toll booth. As trucks pass through this section of road, data from each bar load cell is collected in real time and the truck's weight is calculated, achieving dynamic weighing. Currently, narrow-strip and quartz-type bar load cells are widely used for non-stop overload detection and bridge protection on highways, national and provincial roads, and are also frequently installed at highway entrances and exits to detect overloads by trucks at low speeds. These typically employ multiple rows of sensors arranged in a parallel or staggered array, with the spacing between the rows typically equal, but not necessarily unequal. The judgment of vehicle models is generally made using special vehicle model recognition equipment, or based on vehicle model feature big data and fuzzy algorithms.
[0003] However, the bar-type weighing sensors used in the aforementioned weigh-in-motion systems generally provide accurate detection when vehicles are traveling at a normal, steady speed. However, at highway entrances, vehicles inevitably stop and go at the weighing area due to queuing. Furthermore, some trucks exploit the characteristics of the bar-type sensors and intentionally engage in unusual maneuvers such as stopping and starting, changing speeds, and driving in S-shaped patterns. This can lead to misjudgments of couplings and vehicle types, and even increased weighing errors. Consequently, existing weigh-in-motion systems are prone to disputes caused by misjudgments of vehicle types and large errors, which often disrupt the normal flow of traffic at highway entrances. Summary of the Invention
[0004] The present application provides a layout structure and road structure of a dynamic weighing system of a bar-type weighing sensor to solve the above problems.
[0005] In an embodiment of the present application, a layout structure of a dynamic weighing system of a bar-type weighing sensor is provided, which is arranged on a lane and includes a first weighing unit, a second weighing unit and a third weighing unit;
[0006] The first weighing unit includes a strip sensor perpendicular to the direction of vehicle travel on the lane and covering both sides of the lane, and the strip sensors of the first weighing unit are arranged in a single row on both sides of the lane;
[0007] The second weighing unit is arranged on one side of the lane and includes N rows of parallel bar sensors;
[0008] The third weighing unit is arranged on the other side of the lane and includes N rows of parallel bar sensors;
[0009] The second weighing unit and the third weighing unit are arranged in an interlaced manner, and the N rows of strip sensors of the second weighing unit and the N rows of strip sensors of the third weighing unit are arranged with the same regular spacing;
[0010] Wherein, N is a positive integer and N≥2;
[0011] The distance between the first row of bar sensors of the second weighing unit and the bar sensors of the first weighing unit on the same side is not less than 500 mm, the distance between the first row of bar sensors of the third weighing unit and the bar sensors of the first weighing unit on the same side is not less than 500 mm, and the distance between the last row of bar sensors of the second weighing unit and the last row of bar sensors of the third weighing unit and the bar sensors of the first weighing unit is not more than 2000 mm.
[0012] In the above-mentioned layout structure of the dynamic weighing system of the bar-type weighing sensor, as a preferred solution, the third weighing unit is located in front of the side of the second weighing unit;
[0013] The distance between the first row of strip sensors of the third weighing unit and the strip sensors of the first weighing unit on the same side is L1, 700mm≤L1≤900mm;
[0014] A vertical distance between the last row of strip sensors of the second weighing unit and the frontmost strip sensor of the first weighing unit along the traveling direction is L2, and 1400 mm ≤ L2 ≤ 1700 mm.
[0015] In the above-mentioned layout structure of the dynamic weighing system of strip-type weighing sensors, as a preferred solution, the first weighing units are located on the same line as the strip-type weighing sensors on the lanes on both sides.
[0016] In the above-mentioned layout structure of the dynamic weighing system of strip weighing sensors, as a preferred solution, the distance between the last row of strip sensors of the second weighing unit and the strip sensors of the first weighing unit is L2, 1400mm≤L2≤1700mm.
[0017] In the above-mentioned layout structure of the dynamic weighing system with a bar-type weighing sensor, as a preferred solution, the first weighing unit includes a first subunit and a second subunit, each of which includes at least one bar-type sensor, and the first subunit and the second subunit are respectively located on both sides of the lane, and the first subunit is located to the side and rear of the second subunit;
[0018] The first subunit is located right in front of the second weighing unit, and the second subunit is located right in front of the third weighing unit.
[0019] In the above-mentioned layout structure of the dynamic weighing system of strip weighing sensors, as a preferred solution, the distance between the first row of strip sensors of the second weighing unit and the strip sensors of the first subunit is L1, 700mm≤L1≤900mm;
[0020] The distance between the first row of strip sensors of the third weighing unit and the strip sensors of the second subunit is L1, 700mm≤L1≤900mm;
[0021] A vertical distance between the last row of strip sensors of the second weighing unit and the strip sensors of the second subunit along the traveling direction is L2, 1400 mm ≤ L2 ≤ 1700 mm.
[0022] In the above-mentioned layout structure of the dynamic weighing system of the bar-type weighing sensor, as a preferred solution, N=2;
[0023] The spacing between the two rows of strip sensors of the second weighing unit and the spacing between the two rows of strip sensors of the third weighing unit are equal and are both L3, 100mm≤L3≤200mm.
[0024] In the above-mentioned layout structure of the dynamic weighing system of the bar-type weighing sensor, as a preferred solution, N=3;
[0025] The three rows of strip sensors of the second weighing unit and the three rows of strip sensors of the third weighing unit are respectively a first row of strip sensors, a middle row of strip sensors and a last row of strip sensors.
[0026] In the above-mentioned layout structure of the dynamic weighing system of strip-type weighing sensors, as a preferred solution, the spacing between the first row of strip-type sensors and the middle row of strip-type sensors of the second weighing unit and the third weighing unit is L4, and the spacing between the middle row of strip-type sensors and the last row of strip-type sensors of the second weighing unit and the third weighing unit is L3;
[0027] Among them, 100mm≤L3≤200mm, 100mm≤L4≤200mm, and L3 and L4 are equal or unequal.
[0028] The present application also provides a road structure, which includes at least one lane including the layout structure of the dynamic weighing system of the strip-shaped weighing sensor as described above.
[0029] The layout and road structure of the dynamic weighing system with bar load cells in the above-described embodiment, combined with the rationally planned spacing between rows of bar load cells, allows the weighing system to accurately determine the vehicle's axle coupling and vehicle type based on the loading status of the bar load cells, even under unusual driving conditions such as stop-and-go traffic. This eliminates the need for additional vehicle type identification equipment and reduces costs. This layout also enhances the system's anti-cheating capabilities and improves weighing accuracy under unusual driving conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 Schematic diagram of the layout structure of the dynamic weighing system of the bar weighing sensor provided in the embodiment of the present application (I);
[0031] Figure 2 Schematic diagram of the layout structure of the dynamic weighing system of the bar weighing sensor provided in the embodiment of the present application (II);
[0032] Figure 3 Schematic diagram of the layout structure of the dynamic weighing system of the bar weighing sensor provided in the embodiment of the present application (III);
[0033] Figure 4 This is a structural diagram (four) of the layout structure of the dynamic weighing system of the bar weighing sensor provided in the embodiment of the present application.
[0034] Explanation of the reference numerals: 1, first weighing unit; 2, second weighing unit; 3, third weighing unit; 1-1, first subunit; 1-2, second subunit. DETAILED DESCRIPTION
[0035] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.
[0036] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various embodiments. Furthermore, the steps or actions in the method description may be reordered or adjusted in a manner readily apparent to those skilled in the art. Therefore, the various sequences in the specification and drawings are provided solely for the purpose of clearly describing a particular embodiment and are not intended to be mandatory, unless otherwise specified.
[0037] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).
[0038] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In an embodiment of the present application, a layout structure of a dynamic weighing system of a bar weighing sensor is provided, which is arranged on a lane and includes a first weighing unit 1, a second weighing unit 2 and a third weighing unit 3; the first weighing unit 1 includes a bar sensor perpendicular to the driving direction of the vehicle on the lane and covering both sides of the lane at the same time, and the bar sensors of the first weighing unit 1 are arranged in a single row on each side of the lane; the second weighing unit 2 is arranged on one side of the lane and includes N rows of bar sensors arranged in parallel; the third weighing unit 3 is arranged on the other side of the lane and includes N rows of bar sensors arranged in parallel; the second weighing unit 2 and the third weighing unit 3 are staggered, and the N rows of bar sensors of the second weighing unit 2 and the N rows of bar sensors of the third weighing unit 3 are arranged with the same regular spacing. Wherein, N is a positive integer and N ≥ 2; the distance between the first row of bar sensors of the second weighing unit 2 and the bar sensors of the first weighing unit 1 on the same side shall not be less than 500 mm, the distance between the first row of bar sensors of the third weighing unit 3 and the bar sensors of the first weighing unit 1 on the same side shall not be less than 500 mm, and the distance between the last row of bar sensors of the second weighing unit 2 and the last row of bar sensors of the third weighing unit 3 and the bar sensors of the first weighing unit 1 shall not exceed 2000 mm.
[0039] In the above-mentioned layout structure of the dynamic weighing system of strip weighing sensors, as a preferred solution, the third weighing unit 3 is located on the side and front of the second weighing unit 2; the distance between the first row of strip sensors of the third weighing unit 3 and the strip sensors of the first weighing unit 1 on the same side is L1, 700mm≤L1≤900mm; the vertical distance between the last row of strip sensors of the second weighing unit 2 and the frontmost strip sensor of the first weighing unit 1 along the driving direction is L2, 1400mm≤L2≤1700mm.
[0040] In some embodiments, a dynamic weighing system layout structure of a bar-type load cell is installed on the road surface, using a multi-row layout, including a first load cell 1, a second load cell 2, and a third load cell 3. The first load cell 1 is arranged in a single linear row, covering the entire lane, while the second load cell 2 and the third load cell 3 are arranged in multiple dense rows, covering the left and right half of the lane respectively.
[0041] In some embodiments, the second and third weighing units 2 and 3 are typically arranged in a densely packed arrangement of two or three rows, or more rows are possible. The spacing L3 and L4 within this dense arrangement is typically 100 mm to 200 mm, and L3 and L4 are typically equal, but may vary. The center-to-center distance L1 between the first row of sensors of the third weighing unit 3 and the first weighing unit 1 is typically 700 mm to 900 mm, but may be larger or smaller. The center-to-center distance L2 between the last row of sensors of the second weighing unit 2 and the center of the first weighing unit 1 is typically 1400 mm to 1700 mm, but may be larger or smaller.
[0042] In some embodiments, the spacing between L1, L2, L3, and L4 is adjustable. By adjusting the spacing between L1, L2, L3, and L4, when the front wheels in the vehicle coupling are loaded onto the first weighing unit 1, the rear wheels in the coupling will definitely be loaded onto one or more rows of sensors in the second weighing unit 2 or the third weighing unit 3. In this way, the wheelbases of the two axles loaded at the same time can be detected, and then it can be determined whether they are coupled, thereby achieving accurate identification of the coupling and vehicle model, and also improving the anti-cheating ability of the weighing system and the weighing accuracy under abnormal driving conditions.
[0043] Please refer to Figure 1 and Figure 3 In the above-mentioned layout structure of the dynamic weighing system of the strip weighing sensor, as a preferred solution, the first weighing unit 1 is located on the same line as the strip sensors on the lanes on both sides.
[0044] In the above-mentioned layout structure of the dynamic weighing system of strip weighing sensors, as a preferred solution, the distance between the last row of strip sensors of the second weighing unit 2 and the strip sensors of the first weighing unit 1 is L2, 1400mm≤L2≤1700mm.
[0045] Please refer to Figure 2 and Figure 4 In the above-mentioned layout structure of the dynamic weighing system of the bar-type weighing sensor, as a preferred solution, the first weighing unit 1 includes a first subunit 1-1 and a second subunit 1-2, each of which includes at least one bar-type sensor. The first subunit 1-1 and the second subunit 1-2 are respectively located on both sides of the lane, and the first subunit 1-1 is located to the side and rear of the second subunit 1-2; the first subunit 1-1 is located directly in front of the second weighing unit 2, and the second subunit 1-2 is located directly in front of the third weighing unit 3.
[0046] In the above-mentioned layout structure of the dynamic weighing system of strip weighing sensors, as a preferred solution, the distance between the first row of strip sensors of the second weighing unit 2 and the strip sensors of the first subunit 1-1 is L1, 700mm≤L1≤900mm; the distance between the first row of strip sensors of the third weighing unit 3 and the strip sensors of the second subunit 1-2 is L1, 700mm≤L1≤900mm; the vertical distance between the last row of strip sensors of the second weighing unit 2 and the strip sensors of the second subunit 1-2 along the driving direction is L2, 1400mm≤L2≤1700mm.
[0047] Please refer to Figure 3 and Figure 4 In the above-mentioned layout structure of the dynamic weighing system of the strip weighing sensor, as a preferred solution, N=2; the spacing between the two rows of strip sensors of the second weighing unit 2 and the spacing between the two rows of strip sensors of the third weighing unit 3 are equal and are both L3, 100mm≤L3≤200mm.
[0048] Please refer to Figure 1 and Figure 2 In the above-mentioned layout structure of the dynamic weighing system of the strip weighing sensor, as a preferred solution, N=3; the three rows of strip sensors of the second weighing unit 2 and the third weighing unit 3 are respectively the first row of strip sensors, the middle row of strip sensors and the last row of strip sensors.
[0049] In the above-mentioned layout structure of the dynamic weighing system of strip weighing sensors, as a preferred solution, the spacing between the first row of strip sensors and the middle row of strip sensors of the second weighing unit 2 and the third weighing unit 3 is L4, and the spacing between the middle row of strip sensors and the last row of strip sensors of the second weighing unit 2 and the third weighing unit 3 is L3; among which, 100mm≤L3≤200mm, 100mm≤L4≤200mm, and L3 and L4 are equal or unequal.
[0050] The present application also provides a road structure, which includes at least one lane including a layout structure of a dynamic weighing system with strip-shaped weighing sensors as described above.
[0051] Those skilled in the art will appreciate that all or part of the functions of the various methods in the above embodiments can be implemented by hardware or by computer program. When all or part of the functions in the above embodiments are implemented by computer program, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to implement the above functions. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above functions can be implemented. In addition, when all or part of the functions in the above embodiments are implemented by computer program, the program can also be stored in a storage medium such as a server, another computer, disk, optical disk, flash disk or mobile hard disk, and saved in the memory of the local device by downloading or copying, or the system of the local device is updated. When the program in the memory is executed by the processor, all or part of the functions in the above embodiments can be implemented.
[0052] The above examples are used to illustrate the present application, which are only used to help understand the present application and are not intended to limit the present application. For those skilled in the art of the present application, based on the concept of the present application, they can also make some simple deductions, modifications or substitutions.
Claims
1. A layout structure of a dynamic weighing system with a bar-type weighing sensor, arranged on a lane, characterized in that: comprising a first weighing unit, a second weighing unit and a third weighing unit; The first weighing unit includes a strip sensor perpendicular to the direction of vehicle travel on the lane and covering both sides of the lane, and the strip sensors of the first weighing unit are arranged in a single row on both sides of the lane; The second weighing unit is arranged on one side of the lane and includes N rows of parallel bar sensors; The third weighing unit is arranged on the other side of the lane and includes N rows of parallel bar sensors; The second weighing unit and the third weighing unit are arranged in an interlaced manner, and the N rows of strip sensors of the second weighing unit and the N rows of strip sensors of the third weighing unit are arranged with the same regular spacing; Wherein, N is a positive integer and N≥2; The distance between the first row of bar sensors of the second weighing unit and the bar sensors of the first weighing unit on the same side is not less than 500 mm, the distance between the first row of bar sensors of the third weighing unit and the bar sensors of the first weighing unit on the same side is not less than 500 mm, and the distance between the last row of bar sensors of the second weighing unit and the last row of bar sensors of the third weighing unit and the bar sensors of the first weighing unit is not more than 2000 mm.
2. The layout structure of the dynamic weighing system of the bar weighing sensor according to claim 1 is characterized in that: The third weighing unit is located in front of the side of the second weighing unit; The distance between the first row of strip sensors of the third weighing unit and the strip sensors of the first weighing unit on the same side is L1, 700mm≤L1≤900mm; A vertical distance between the last row of strip sensors of the second weighing unit and the frontmost strip sensor of the first weighing unit along the traveling direction is L2, and 1400 mm ≤ L2 ≤ 1700 mm.
3. The layout structure of the dynamic weighing system of the bar weighing sensor according to claim 1 or 2, characterized in that: The first weighing unit is located on the same line as the strip sensors of the lanes on both sides.
4. The layout structure of the dynamic weighing system of the bar-type weighing sensor according to claim 3 is characterized in that: The distance between the last row of strip sensors of the second weighing unit and the strip sensors of the first weighing unit is L2, 1400 mm ≤ L2 ≤ 1700 mm.
5. The layout structure of the dynamic weighing system of the bar-type weighing sensor according to claim 1 or 2, characterized in that: The first weighing unit includes a first subunit and a second subunit, each including at least one strip sensor, the first subunit and the second subunit are respectively located on both sides of the lane, and the first subunit is located to the side and rear of the second subunit; The first subunit is located right in front of the second weighing unit, and the second subunit is located right in front of the third weighing unit.
6. The layout structure of the dynamic weighing system of the bar-type weighing sensor according to claim 5, characterized in that: The distance between the first row of strip sensors of the second weighing unit and the strip sensors of the first subunit is L1, 700mm≤L1≤900mm; The distance between the first row of strip sensors of the third weighing unit and the strip sensors of the second subunit is L1, 700mm≤L1≤900mm; A vertical distance between the last row of strip sensors of the second weighing unit and the strip sensors of the second subunit along the traveling direction is L2, 1400 mm ≤ L2 ≤ 1700 mm.
7. The layout structure of the dynamic weighing system of the bar weighing sensor according to claim 1, characterized in that: N＝2； The spacing between the two rows of strip sensors of the second weighing unit and the spacing between the two rows of strip sensors of the third weighing unit are equal and are both L3, 100mm≤L3≤200mm.
8. The layout structure of the dynamic weighing system of the bar-type weighing sensor according to claim 1 is characterized in that: N＝3； The three rows of strip sensors of the second weighing unit and the three rows of strip sensors of the third weighing unit are respectively a first row of strip sensors, a middle row of strip sensors and a last row of strip sensors.
9. The layout structure of the dynamic weighing system of the bar-type weighing sensor according to claim 8, characterized in that: The distance between the first row of bar sensors and the middle row of bar sensors of the second weighing unit and the third weighing unit is L4, and the distance between the middle row of bar sensors and the last row of bar sensors of the second weighing unit and the third weighing unit is L3; Among them, 100mm≤L3≤200mm, 100mm≤L4≤200mm, and L3 and L4 are equal or unequal.
10. A road structure, characterized in that: The road structure includes at least one lane including a layout structure of a dynamic weighing system of a strip-type weighing sensor as described in any one of claims 1-9.