Leveling method and device for electronic truck scale
By obtaining and judging the output value of the electronic car weighing sensor, combining foot adjustment and angle difference correction, the complexity of the electronic car weighing process is solved, and fast and accurate leveling and high-precision measurement are achieved.
Patent Information
- Application Number
- CN202510674818.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2025-09-05
AI Technical Summary
In the prior art, the scale leveling of electronic vehicle scales lacks systematicity and standardization, resulting in complex debugging process and low metrological accuracy, especially unfriendly to new introductory debugging personnel.
By obtaining the output value of the weighing sensor of the electronic car scale in the empty scale state, we judge whether the leveling requirements are met, and leveling is carried out according to the percentage of the difference and the numerical range, including foot adjustment and angle difference correction, and automatic and manual correction using weights or forklifts to ensure that the sensor output value meets the standards.
It realizes fast and accurate leveling of electronic car scales, reduces the workload of debuggers, shortens debugging time, improves metrological accuracy and repeatability, and ensures the reliability of metrological data.
Smart Images
Figure CN120593874A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of electronic truck scales, and in particular to a leveling method and device for an electronic truck scale. Background Art
[0002] As a measurement tool, the accuracy of electronic truck scales is crucial for trade settlements, industrial production, and other aspects. Platform leveling can improve weighing accuracy, avoid weighing errors caused by imbalance or angular differences, and thus ensure the reliability of electronic truck scale data. Existing technologies for electronic truck scale platform leveling rely on experience, estimation, and randomness, lack process guidance, and can lead to frequent rework, making the process difficult for novice commissioning personnel. Summary of the Invention
[0003] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.
[0004] To this end, a first embodiment of the present disclosure provides a method for leveling an electronic truck scale, wherein the electronic truck scale includes a plurality of load cells, wherein the plurality of load cells are axially symmetrically distributed at a plurality of angular positions and a plurality of intermediate positions of the electronic truck scale. The method includes the following steps:
[0005] Obtaining output values of the plurality of weighing sensors of the electronic truck scale when the electronic truck scale is in an empty state;
[0006] Determining whether the output values of the plurality of weighing sensors meet the leveling requirements of the truck scale;
[0007] determining that the output values of the plurality of weighing sensors do not meet the leveling requirements of the truck scale, and performing leveling processing on the electronic truck scale;
[0008] The truck scale leveling requirements include:
[0009] The difference between the maximum output value and the minimum output value of the weighing sensors at the plurality of angular positions is less than or equal to a first threshold percentage of the minimum output value,
[0010] The difference between the maximum output value and the minimum output value of the load cells at the middle positions is less than or equal to a second threshold percentage of the minimum output value.
[0011] The difference between the maximum output value and the minimum output value of each two weighing sensors located at the same axially symmetrical position is less than or equal to the third threshold percentage of the minimum output value.
[0012] The output value of each weighing sensor at the intermediate position does not exceed a preset value range.
[0013] In some embodiments of the present disclosure, the leveling of the electronic truck scale includes: adjusting the legs of the electronic truck scale or adjusting the support of the weighing sensor.
[0014] In some embodiments of the present disclosure, the method further includes: determining the initial parameters of the electronic truck scale after leveling the electronic truck scale; using a heavy vehicle with a weight within a preset weight range to roll over the electronic truck scale multiple times; determining that the instrument reading of the electronic truck scale returns to an empty state after rolling, and using weights or a forklift pressure angle to correct the angular difference of the electronic truck scale.
[0015] In some embodiments of the present disclosure, the weight of the weight or the forklift satisfies the following formula:
[0016]
[0017] Wherein, m is the weight of the weight or the forklift, M is the maximum range of the electronic truck scale, and N is the number of the weighing sensors.
[0018] In some embodiments of the present disclosure, the angular difference correction of the electronic truck scale using weights or forklift pressure angles includes: correcting the angular difference coefficient of the electronic truck scale using automatic angular difference correction using the weights or forklift pressure angles; and manually adjusting the angular difference coefficient after automatic angular difference correction.
[0019] In some embodiments of the present disclosure, the method further includes: using a constant load vehicle to perform weighing tests at the front, center, and rear positions of the electronic truck scale; determining the maximum difference between the weighing results at the three positions; and determining the weighing repeatability effect of the electronic truck scale based on the maximum difference and the maximum allowable error of the electronic truck scale.
[0020] A second aspect of the present disclosure provides a leveling device for an electronic truck scale, the electronic truck scale comprising a plurality of load cells, the plurality of load cells being axially symmetrically distributed at a plurality of angular positions and a plurality of intermediate positions of the electronic truck scale, the device comprising:
[0021] An acquisition module, configured to acquire output values of the plurality of weighing sensors of the electronic truck scale in an empty state;
[0022] A judgment module, configured to judge whether the output values of the plurality of weighing sensors meet the leveling requirements of the truck scale;
[0023] A processing module, configured to determine that the output values of the plurality of weighing sensors do not meet the leveling requirements of the truck scale, and perform leveling processing on the electronic truck scale;
[0024] The truck scale leveling requirements include:
[0025] The difference between the maximum output value and the minimum output value of the weighing sensors at the plurality of angular positions is less than or equal to a first threshold percentage of the minimum output value,
[0026] The difference between the maximum output value and the minimum output value of the load cells at the middle positions is less than or equal to a second threshold percentage of the minimum output value.
[0027] The difference between the maximum output value and the minimum output value of each two weighing sensors located at the same axially symmetrical position is less than or equal to the third threshold percentage of the minimum output value.
[0028] The output value of each weighing sensor at the intermediate position does not exceed a preset value range.
[0029] A third embodiment of the present disclosure provides an electronic device, comprising: a processor, and a memory communicatively connected to the processor;
[0030] The memory stores computer-executable instructions;
[0031] The processor executes the computer-executable instructions stored in the memory to implement the method described in the first aspect.
[0032] The fourth aspect of the present disclosure provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, which are used to implement the method described in the first aspect when executed by a processor.
[0033] The electronic truck scale leveling method disclosed herein provides guidance for the electronic truck scale platform leveling process based on standards and data. It can accurately and quickly determine whether the electronic truck scale is level and whether leveling is necessary, reducing the workload of commissioning personnel, significantly simplifying commissioning difficulty and time, and improving the scale's measurement accuracy.
[0034] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0036] Figure 1A schematic flow chart of a leveling method for an electronic truck scale provided in an embodiment of the present disclosure;
[0037] Figure 2 A schematic diagram of an electronic truck scale provided by an embodiment of the present disclosure;
[0038] Figure 3 A reference diagram of the accuracy level of a scale provided by an embodiment of the present disclosure;
[0039] Figure 4 A reference diagram of the maximum allowable error of weighing results between different positions of an electronic truck scale provided by an embodiment of the present disclosure;
[0040] Figure 5 A schematic diagram of a leveling device for an electronic truck scale provided in an embodiment of the present disclosure. DETAILED DESCRIPTION
[0041] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.
[0042] Specifically, the leveling method and device for the electronic truck scale according to the embodiments of the present disclosure are described below with reference to the accompanying drawings.
[0043] Figure 1 This is a flow chart of a method for leveling an electronic truck scale provided by an embodiment of the present disclosure. It should be noted that the electronic truck scale includes multiple load cells. The multiple load cells are axially symmetrically distributed at multiple angular positions and multiple intermediate positions of the electronic truck scale. Figure 2 A schematic diagram of an electronic truck scale provided in an embodiment of the present disclosure. Figure 2 Taking a square electronic truck scale as an example, it includes four load cells at the corners (No. 1, No. 4, No. 5, and No. 8) and four load cells in the center (No. 2, No. 3, No. 6, and No. 7). These eight load cells are symmetrically distributed across the scale. An electronic truck scale consists of a weighing platform and load cells. The weighing platform is used to place objects to be weighed, while the load cells are located below the platform. When powered on, the load cells output a numerical value reflecting the force applied to the platform.
[0044] like Figure 1 As shown, the leveling method of the electronic truck scale may include the following steps:
[0045] Step 101: Obtain output values of multiple weighing sensors of an electronic truck scale in an empty state.
[0046] Step 102: determine whether the output values of the multiple weighing sensors meet the leveling requirements of the truck scale.
[0047] The embodiment of the present disclosure provides a truck scale leveling requirement, which can standardize the leveling workflow of electronic truck scales and accurately guide operators to perform operations. Truck scale leveling requirements include:
[0048] The difference between the maximum output value and the minimum output value of the load cells at the plurality of angular positions is less than or equal to a first threshold percentage of the minimum output value,
[0049] The difference between the maximum output value and the minimum output value of the load cells at the middle positions is less than or equal to a second threshold percentage of the minimum output value.
[0050] The difference between the maximum output value and the minimum output value of each two weighing sensors located at the same axially symmetrical position is less than or equal to the third threshold percentage of the minimum output value.
[0051] The output value of the weighing sensor at each intermediate position does not exceed the preset value range.
[0052] The threshold percentages in the truck scale leveling requirements represent the error between load cells. Therefore, to ensure the accuracy of the electronic truck scale's leveling determination, the first, second, and third threshold percentages must not exceed 50%. The lower the threshold percentages, the higher the accuracy of the leveling determination. In one possible implementation, the threshold percentages in the truck scale leveling requirements can be set as follows: 30% for the first threshold percentage, 30% for the second threshold percentage, and 20% for the third threshold percentage. Due to the positional differences between the angular and neutral positions, the allowable error in the output data between the two positions must also be considered when determining whether the electronic truck scale is leveled. Therefore, the preset value range that the load cell in the neutral position must meet can be set based on the output value of the load cell in the angular position. The output data of the load cell in the neutral position can be larger than that of the load cell in the angular position. For example, the preset value range can be set to 1-2 times the average output value of the load cells at multiple angular positions. As an example, the preset value range can be set to 1.5-2 times the average output value of the load cells at multiple angular positions.
[0053] by Figure 2 Taking the embodiment as an example, the truck scale leveling requirements may include:
[0054] The difference between the maximum output value and the minimum output value of the load cells No. 1, No. 4, No. 5, and No. 8 at the four corner positions is less than or equal to 30% of the minimum output value of No. 1, No. 4, No. 5, and No. 8.
[0055] The difference between the maximum output value and the minimum output value of the four middle position load cells No. 2, No. 3, No. 6, No. 7 is less than or equal to 30% of the minimum output value of No. 2, No. 3, No. 6, No. 7,
[0056] The difference between the maximum output value and the minimum output value of each two weighing sensors No. 1 and No. 4, No. 5 and No. 8, No. 1 and No. 8, No. 4 and No. 5, No. 2 and No. 3, No. 2 and No. 7, No. 3 and No. 6, No. 6 and No. 7, which are symmetrically located on the same axis, is less than or equal to 20% of the minimum output value.
[0057] The output values of load cells No. 2, No. 3, No. 6, and No. 7 at each intermediate position are within the range of 1.5 to 2 times the average output values of load cells No. 1, No. 4, No. 5, and No. 8.
[0058] Step 103 : determining that the output values of the plurality of weighing sensors do not meet the leveling requirements of the electronic truck scale, and performing leveling processing on the electronic truck scale.
[0059] In some embodiments of the present disclosure, the electronic truck scale can be automatically or manually leveled until the output values of multiple load cells meet the leveling requirements, confirming the scale is level. The scale's legs can be adjusted by observing the level gauge on the scale, moving the bubble to the center of the level gauge. Alternatively, after power is applied, the output values of each sensor in the junction box can be measured. Based on the readings, locations with insufficient force can be identified and the load cell supports adjusted to ensure uniform force across all support points on the tabletop.
[0060] Optionally, after the electronic truck scale is leveled, the electronic truck scale may be cross-corrected to further ensure the accuracy of weighing. In some embodiments of the present disclosure, the initial parameters of the electronic truck scale may be determined after the electronic truck scale is leveled. For example, the setting of system parameters such as the range, graduation value, and number of sensors is completed on the weighing instrument, and a simple calibration of the truck scale is performed. Use a heavy vehicle with a weight within a preset weight range to roll over the electronic truck scale multiple times. The preset weight range is close to the full scale of the electronic truck scale. If the instrument reading of the electronic truck scale is determined to be not zero after rolling when it returns to an empty state, check the installation of the scale platform and the weighing sensor, and the position setting of the limit device. After the problem is found and eliminated, confirm that the instrument reading of the electronic truck scale is zero after rolling when it returns to an empty state, and use weights or forklift pressure angles to correct the angular difference of the electronic truck scale.
[0061] In some embodiments of the present disclosure, when performing angle correction on an electronic truck scale, the weight of the weight or forklift must satisfy the following formula:
[0062]
[0063] Where m is the weight of the weight or forklift, M is the maximum capacity of the electronic truck scale, and N is the number of load cells. As an example, if the truck scale has a maximum capacity of 140 tons and uses eight load cells, the weight of the angle-pressing weight or forklift must be greater than or equal to 20 tons.
[0064] Optionally, in some embodiments of the present disclosure, the angular difference coefficient of the electronic vehicle scale can be corrected by using weights or forklift pressure angles to adopt automatic angular difference correction. After the automatic angular difference correction is completed, the output values of each angle appear to be the same and equal to the weight of the weight, but due to the graduation value, the output value of each angle may be near a jump point. If the weight of the object is changed, the error may be aggravated. At this time, the angular difference coefficient after the automatic angular difference correction is manually adjusted. Utilize the high-precision mode of the digital weighing instrument, observe the output value, and manually fine-tune the angular difference coefficient to correct the output values of all angles to the accurate weight of the weight, and avoid the output value being near the jump point. This can effectively eliminate the weight difference of the vehicle at the front, center, and back of the weighing platform.
[0065] In some embodiments of the present disclosure, after the electronic truck scale is corrected for angular error, a weighing test can also be performed on the electronic truck scale to confirm the weighing performance of the electronic truck scale. In one implementation, a constant load vehicle is used to perform weighing tests at the front, center, and back positions of the electronic truck scale. The maximum difference between the weighing results at the three positions is determined. The weighing repeatability effect of the electronic truck scale is determined based on the maximum difference and the maximum allowable error of the electronic truck scale. If the maximum difference is less than the maximum allowable error, it means that the weighing repeatability effect of the electronic truck scale is good. If the maximum difference is greater than or equal to the maximum allowable error, it means that the weighing repeatability effect of the electronic truck scale is not good and further inspection and debugging are required.
[0066] Figure 3 A reference diagram of the accuracy level of a scale provided by an embodiment of the present disclosure is provided. Figure 4 A reference diagram of the maximum allowable error of weighing results between different positions of an electronic truck scale provided in an embodiment of the present disclosure. Figure 3 It shows the relationship between the accuracy grade and the verification graduation value, verification graduation number and minimum weighing capacity. Figure 3 Determined accuracy level reference Figure 4 Determine the maximum allowable error.
[0067] As an example, assume a digital truck scale with a capacity of 120 tons and a calibration value of e = 20kg. Figure 3 、 Figure 4 The maximum allowable error can be determined by the following calculation:
[0068] If the vehicle weighs less than 10 tons, the difference between the weighing results at the front, center, and back of the scale should be less than 10kg;
[0069] The weight of the vehicle is between 10 tons and 40 tons. The difference between the weighing results at the front, center and back of the scale should be less than 20kg.
[0070] The weight of the vehicle is between 40 tons and 120 tons, and the difference in weighing results at the front, center and back positions of the weighing platform should be less than 30kg.
[0071] By implementing the disclosed embodiments, guidance is provided for the electronic truck scale platform leveling process based on standards and data. This allows for accurate and rapid determination of whether the electronic truck scale is level and whether leveling is necessary, reducing the workload of commissioning personnel, significantly reducing commissioning difficulty and time, and improving the measurement accuracy of the truck scale.
[0072] In practical operation, after applying the leveling and angular error correction methods described in the above embodiment to an electronic truck scale, the time required to perform platform leveling and angular error correction on a 100t electronic truck scale was reduced from 12 hours to 2 hours in a field test. The truck scale has passed annual calibration on a single occasion for several consecutive years, verifying the accuracy of the scale's measurement data. The leveling method and angular error correction methods proposed in the above embodiment are based on relevant standards and regulations, standardizing, streamlining, digitizing, charting, visualizing, and normalizing the electronic truck scale platform leveling and angular error correction work.
[0073] Figure 5 This is a schematic diagram of a leveling device for an electronic truck scale provided by an embodiment of the present disclosure. Figure 5 As shown, the leveling device of the electronic truck scale includes: an acquisition module 501 , a judgment module 502 and a processing module 503 .
[0074] The acquisition module 501 is used to obtain the output values of multiple weighing sensors of the electronic truck scale in an empty state.
[0075] The judgment module 502 is used to judge whether the output values of the multiple weighing sensors meet the leveling requirements of the truck scale.
[0076] The processing module 503 is used to determine that the output values of the multiple weighing sensors do not meet the leveling requirements of the electronic truck scale, and perform leveling processing on the electronic truck scale.
[0077] Among them, the requirements for truck scale leveling include:
[0078] The difference between the maximum output value and the minimum output value of the load cells at the plurality of angular positions is less than or equal to a first threshold percentage of the minimum output value,
[0079] The difference between the maximum output value and the minimum output value of the load cells at the middle positions is less than or equal to a second threshold percentage of the minimum output value.
[0080] The difference between the maximum output value and the minimum output value of each two weighing sensors located at the same axially symmetrical position is less than or equal to the third threshold percentage of the minimum output value.
[0081] The output value of the weighing sensor at each intermediate position does not exceed the preset value range.
[0082] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.
[0083] In order to implement the above embodiments, the present disclosure also proposes an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method provided by the above embodiments.
[0084] In order to implement the above embodiments, the present disclosure further proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the methods provided by the above embodiments.
[0085] In the descriptions of the aforementioned embodiments, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.
[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0087] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.
[0088] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.
[0089] It should be understood that various parts of the present disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.
[0090] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.
[0091] In addition, the functional units in the various embodiments of the present disclosure may be integrated into a single processing module, or each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.
[0092] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. A person of ordinary skill in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.
Claims
1. A method for leveling an electronic truck scale, characterized in that: The electronic truck scale includes a plurality of weighing sensors, which are axially symmetrically distributed at a plurality of angular positions and a plurality of intermediate positions of the electronic truck scale. The method includes the following steps: Obtaining output values of the plurality of weighing sensors of the electronic truck scale when the electronic truck scale is in an empty state; Determining whether the output values of the plurality of weighing sensors meet the leveling requirements of the truck scale; determining that the output values of the plurality of weighing sensors do not meet the leveling requirements of the truck scale, and performing leveling processing on the electronic truck scale; The truck scale leveling requirements include: The difference between the maximum output value and the minimum output value of the weighing sensors at the plurality of angular positions is less than or equal to a first threshold percentage of the minimum output value, The difference between the maximum output value and the minimum output value of the load cells at the middle positions is less than or equal to a second threshold percentage of the minimum output value. The difference between the maximum output value and the minimum output value of each two weighing sensors located at the same axially symmetrical position is less than or equal to the third threshold percentage of the minimum output value. The output value of each weighing sensor at the intermediate position does not exceed a preset value range.
2. The method according to claim 1, characterized in that The leveling process of the electronic truck scale includes: Adjust the support legs of the electronic truck scale or adjust the support of the weighing sensor.
3. The method according to claim 1, characterized in that The method further comprises: After leveling the electronic truck scale, determining initial parameters of the electronic truck scale; Using a heavy vehicle within a preset weight range to repeatedly run over the electronic truck scale; After rolling, it is determined that the instrument reading of the electronic truck scale is restored to an empty state and is returned to zero, and the angle difference of the electronic truck scale is corrected by using weights or a forklift pressure angle.
4. The method according to claim 3, characterized in that The weight of the weight or the forklift satisfies the following formula: Wherein, m is the weight of the weight or the forklift, M is the maximum range of the electronic truck scale, and N is the number of the weighing sensors.
5. The method according to claim 3 or 4, characterized in that The method of correcting the angle difference of the electronic truck scale by using weights or forklift pressure angle includes: Correcting the angular difference coefficient of the electronic truck scale by using the weight or the forklift pressure angle in an automatic angular difference correction manner; Manually adjust the angular difference coefficient after automatic angular difference correction.
6. The method according to claim 3 or 4, characterized in that The method further comprises: Using a constant load vehicle, weighing tests are performed on the electronic truck scale at the front, center, and rear positions respectively; determining a maximum difference between the weighing results at the three locations; The weighing repeatability effect of the electronic truck scale is determined according to the maximum difference and the maximum allowable error of the electronic truck scale.
7. A leveling device for an electronic truck scale, characterized in that: The electronic truck scale includes a plurality of weighing sensors, which are axially symmetrically distributed at a plurality of angular positions and a plurality of intermediate positions of the electronic truck scale. The device includes: An acquisition module, configured to acquire output values of the plurality of weighing sensors of the electronic truck scale in an empty state; A judgment module, configured to judge whether the output values of the plurality of weighing sensors meet the leveling requirements of the truck scale; A processing module, configured to determine that the output values of the plurality of weighing sensors do not meet the leveling requirements of the truck scale, and perform leveling processing on the electronic truck scale; The truck scale leveling requirements include: The difference between the maximum output value and the minimum output value of the weighing sensors at the plurality of angular positions is less than or equal to a first threshold percentage of the minimum output value, The difference between the maximum output value and the minimum output value of the load cells at the middle positions is less than or equal to a second threshold percentage of the minimum output value. The difference between the maximum output value and the minimum output value of each two weighing sensors located at the same axially symmetrical position is less than or equal to the third threshold percentage of the minimum output value. The output value of each weighing sensor at the intermediate position does not exceed a preset value range.
8. An electronic device, characterized in that: include: a processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 6.
9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 6 when executed by a processor.