Vehicle load dynamic weighing device

Abstract

This application provides a dynamic weighing device for vehicle load, including a mounting block on which a sensor is mounted. The sensor is connected to an integrated digital-to-analog junction box, which is connected to a central control box. The central control box includes a control module, a proportional dynamic distribution module, and a communication transmission module. Alternatively, the sensor and integrated digital-to-analog junction box can be replaced by a sensor with an integrated digital-to-analog conversion module. This application does not require sensor calibration; only a factory initialization of the digital-to-analog junction box is needed, eliminating the need for on-site calibration without affecting accuracy. Before use, weights are calibrated at four locations on the load-bearing surface of the vehicle compartment: left front, right front, left rear, and right rear. The proportional dynamic distribution module calculates a very accurate load weight, eliminating interference and obtaining an accurate distribution ratio coefficient, thus achieving dynamic weighing of the vehicle load. Furthermore, no structural modifications are required, reducing operating costs.

Description

Technical Field

[0001] This application relates to the field of vehicle weighing equipment technology, specifically to a dynamic weighing device for vehicle load. Background Technology

[0002] Dynamic vehicle weighing using attached load cells is a common vehicle weighing solution that does not require changes to the vehicle body structure. Attached sensors are installed on the axles to monitor axle deformation and thus provide feedback on the overall vehicle load. This method is particularly simple to install and requires minimal modification to the vehicle body, which are its advantages. However, because it indirectly measures the vehicle body weight by using the axles as the object, the following problems arise:

[0003] 1. After installation, the sensors are difficult to calibrate, making it impossible to calibrate a single axis independently. They interfere with each other, and inaccurate calibration causes nonlinearity in the data.

[0004] II. Nonlinearity of coarseness and stiffness of different wheel and axle;

[0005] III. Non-linear weight display at different positions front and rear of the vehicle body;

[0006] In summary, the combination of multiple nonlinearities makes the overall load weighing signal very poor and difficult to correct, with an average comprehensive error of over 10%. It is only suitable for loading items with average mass, such as slag and liquids. For loads with uneven distribution on the vehicle body, it is almost impossible to weigh them, and the error is almost to the point that the data is unusable.

[0007] The applicant intends to address the aforementioned technical problems by using a vehicle load dynamic weighing device. After searching, it was found that existing vehicle load dynamic weighing devices all require significant structural modifications, leading to a complex installation process and increased costs.

[0008] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0009] This application provides a vehicle load dynamic weighing device, including a mounting block on which a sensor is mounted. The sensor is connected to an integrated digital-analog junction box, which is connected to a central control box. The central control box includes a control module, a proportional dynamic allocation module, and a communication transmission module.

[0010] As a preferred embodiment, the mounting block is welded to the axle.

[0011] As a preferred option, two mounting blocks are welded onto each axle, and a sensor is installed on each mounting block.

[0012] As a preferred embodiment, the sensor is an attached sensor.

[0013] As a preferred embodiment, the integrated digital-to-analog junction box is installed at the bottom of the vehicle.

[0014] As a preferred embodiment, the central control box is installed at the bottom of the vehicle.

[0015] As a preferred embodiment, the communication transmission module is connected to the weight display module.

[0016] As a preferred embodiment, the communication transmission module is connected to the terminal device.

[0017] This application provides a vehicle load dynamic weighing device, including a mounting block on which a sensor is mounted. The sensor integrates a digital-to-analog conversion module, which is connected to a central control box. The central control box includes a control module, a proportional dynamic distribution module, a weight display module, and a communication transmission module.

[0018] As a preferred embodiment, the mounting block is welded to the axle.

[0019] As a preferred option, two mounting blocks are welded onto each axle, and a sensor is installed on each mounting block.

[0020] As a preferred embodiment, the sensor is an attached sensor.

[0021] As a preferred embodiment, the central control box is installed at the bottom of the vehicle.

[0022] As a preferred embodiment, the communication transmission module is connected to the weight display module.

[0023] As a preferred embodiment, the communication transmission module is connected to the terminal device.

[0024] This application eliminates the need for sensor calibration, requiring only a single initialization of the analog-digital junction box at the factory, thus omitting the on-site calibration process without compromising accuracy. Before use, weights are calibrated at four locations on the load-bearing surface of the vehicle compartment: the left front, right front, left rear, and right rear. The proportional dynamic distribution module calculates a highly accurate load weight, eliminating interference and obtaining a precise distribution ratio coefficient, enabling dynamic weighing of the vehicle load. Furthermore, no structural modifications are required, reducing operating costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;

[0026] 1. Wheel axle; 2. Sensor; 3. Integrated digital-analog junction box; 4. Central control box; 5. Vehicle. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 The specific embodiments of this utility model will be described in detail below. It should be noted that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model. Example 1

[0028] This application provides a vehicle load dynamic weighing device, including mounting blocks welded to wheel axles 1. Two mounting blocks are welded to each wheel axle 1, and a sensor 2 is mounted on each mounting block. The sensor 2 is an attached sensor in the prior art, used to detect the deformation of the wheel axle 1, and indirectly feedback the vehicle load through the deformation of the wheel axle 1. The sensor 2 is connected to an integrated digital-analog junction box 3, which is connected to a central control box 4. The integrated digital-analog junction box 3 and the central control box 4 are respectively installed at the bottom of the vehicle 5. The central control box 4 includes a control module, a proportional dynamic allocation module, and a communication transmission module. The control module is connected to the proportional dynamic allocation module, and the proportional dynamic allocation module is connected to the communication transmission module. The algorithms involved in the modules are all conventional prior art, and this application does not make any improvements to them, so they will not be described in detail here.

[0029] The integrated analog-to-digital junction box 3 receives signals from all sensors 2, converts them into digital weight signals, and transmits them to the central control box 4. More specifically, the integrated analog-to-digital junction box 3 receives analog signals from sensors 2, converts them into digital signals, and sends them to the control module. The analog-to-digital conversion modules are centrally arranged in the integrated analog-to-digital junction box 3, with each sensor 2 corresponding to one analog-to-digital conversion interface. That is, each sensor 2 is configured with one analog-to-digital conversion module to output a digital weighing signal. Alternatively, two sensors 2 on one axle 1 can be combined and correspond to one analog-to-digital conversion interface. That is, each axle 1 is configured with one analog-to-digital conversion interface to output a digital weighing signal.

[0030] Preferably, to facilitate staff in checking the load, the communication transmission module is connected to the weight display module. The weight display module can be a display screen as used in existing technology, and it can be placed in a convenient location for observation, such as inside the driver's cab. Furthermore, the communication transmission module is connected to a terminal device, which includes, but is not limited to, mobile phones, tablets, and laptops. The proportional dynamic allocation module sends data to the terminal device through the communication transmission module, allowing staff to check the vehicle's weight more conveniently and easily. Example 2

[0031] The difference between this embodiment and embodiment one is that this embodiment does not include an integrated digital-analog junction box 3. Specifically:

[0032] Each sensor 2 integrates a digital-to-analog converter module, thus becoming a digital sensor. Each sensor 2 outputs a digital signal independently. This method can save the integrated digital-to-analog junction box 3, further reducing costs and installation space.

[0033] In summary, this application does not require calibration of sensor 2. Only the integrated digital-to-analog junction box 3 or the sensor 2 with the integrated digital-to-analog converter module needs to be initialized once at the factory, eliminating the need for on-site calibration and without affecting accuracy. Before use, weights are calibrated at four locations on the load-bearing surface of the vehicle body: left front, right front, left rear, and right rear. The proportional dynamic distribution module calculates the accurate load weight, eliminates interference, and obtains an accurate distribution ratio coefficient, realizing dynamic weighing of vehicle load. That is, the proportional dynamic distribution module distributes the load to each axle 1 with the most reasonable coefficient, so that the load can obtain accurate weight information regardless of its position on the vehicle body. Moreover, this application does not change any structure of the original vehicle, does not add any factors that affect safety, and has the widest applicability.

[0034] The devices and connections not specifically described above are all existing technologies, and will not be described in detail here.

[0035] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0036] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the various possible combinations in this application will not be described separately.

[0038] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, and such combinations should also be regarded as the content disclosed in this application.

Claims

1. A vehicle load dynamic weighing device comprising a mounting block, characterized in that, A sensor (2) is installed on the mounting block. The sensor (2) is connected to an integrated digital-analog junction box (3). The integrated digital-analog junction box (3) is connected to a central control box (4). The central control box (4) includes a control module, a proportional dynamic allocation module, and a communication transmission module.

2. A vehicle load dynamic weighing device according to claim 1, characterised in that, The mounting block is welded to the wheel axle (1).

3. The vehicle load dynamic weighing device according to claim 2, characterized in that, Two mounting blocks are welded on each axle (1), and a sensor (2) is set on each mounting block.

4. The vehicle load dynamic weighing device according to claim 1, characterized in that, The sensor (2) is an attached sensor.

5. A vehicle load dynamic weighing device according to claim 1, characterized in that, The communication transmission module is connected to the weight display module, or / and the communication transmission module is connected to the terminal device.

6. A dynamic weighing device for vehicle load, comprising a mounting block, characterized in that, A sensor (2) is installed on the mounting block. The sensor (2) integrates a digital-to-analog conversion module. The digital-to-analog conversion module is connected to the central control box (4). The central control box (4) includes a control module, a proportional dynamic allocation module, and a communication transmission module.

7. A vehicle load dynamic weighing device according to claim 6, characterized in that, The mounting block is welded to the wheel axle (1).

8. A vehicle load dynamic weighing device according to claim 7, characterized in that, Two mounting blocks are welded on each axle (1), and a sensor (2) is set on each mounting block.

9. A vehicle load dynamic weighing device according to claim 6, characterized in that, The sensor (2) is an attached sensor.

10. A vehicle load dynamic weighing device according to claim 6, characterized in that, The communication transmission module is connected to the weight display module, or / and the communication transmission module is connected to the terminal device.

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