阅读说明：本技术 一种不停车称重系统的计量检测方法及计量检测系统 (Metering detection method and metering detection system of non-stop weighing system ) 是由 申东滨 马堃 潘寿虎 倪俊国 张凯 刘平 张岩 张帅 王连芳 宋勇 秦璐璐 马 于 2021-09-02 设计创作，主要内容包括：本申请公开了一种不停车称重系统的计量检测方法及计量检测系统,计量检测方法通过计算每个车辆的车辆计量误差,判断所有车辆计量误差是否符合国家误差标准,若符合,表示不停车称重系统单独计量出的每个车辆的车辆重量为准确值,如此可以检测不停车称重系统单独计量每个车辆重量的准确度,另外,在完成对每个车辆的重量计量检测后,按车辆类型对不同类型车辆求计量误差极值,得出不同类型车辆的计量误差极值,最后将每种车辆的计量误差极值分别与国家误差标准进行比对,若所有不同类型车辆的计量误差极值均符合国家误差标准,表示所有测试组中不同类型的车型计量误差是一致的,如此,可检测不同类型车辆之间计量误差的一致性。(The application discloses a metering detection method and a metering detection system of a non-stop weighing system, the metering detection method judges whether the metering errors of all vehicles accord with the national error standard or not by calculating the metering errors of the vehicles, if so, the vehicle weight of each vehicle independently metered by the non-stop weighing system is an accurate value, thus the accuracy of the independent metering of each vehicle weight by the non-stop weighing system can be detected, in addition, after the metering detection of the weight of each vehicle is finished, the metering error extreme values of different types of vehicles are obtained according to the types of the vehicles to obtain the metering error extreme values of the different types of vehicles, finally, the metering error extreme values of each type of vehicles are respectively compared with the national error standard, if the metering error extreme values of all different types of vehicles accord with the national error standard, the metering errors of different types in all test groups are consistent, in this way, consistency of metering errors between different types of vehicles can be detected.)

1. A metering detection method of a non-stop weighing system is characterized by comprising the following steps:

obtaining a plurality of different vehicle test groups, wherein the vehicle types and/or the vehicle arrangement sequences of each vehicle test group are different;

calculating the vehicle metering error of each vehicle in all vehicle test groups;

judging whether the metering error of each vehicle meets the national error standard or not;

calculating the corresponding metering error extreme value of each vehicle according to the vehicle type according to all the vehicle metering errors meeting the national error standard in all the obtained vehicle metering errors;

and comparing the obtained extreme value of the metering error of each vehicle with the national error standard respectively, and judging whether the vehicle type metering errors of each vehicle type are consistent.

2. The metering detection method of claim 1 wherein, when the non-stop weighing system is a two-way metering system,

the calculating the vehicle metering error of each vehicle in all vehicle test groups comprises the following steps: calculating the vehicle metering error of each vehicle in each vehicle test group according to one driving direction, and then replacing the other driving direction to calculate the vehicle metering error of each vehicle in each vehicle test group;

the judging whether the vehicle model metering errors of each vehicle type are consistent comprises the following steps: the method comprises the steps of firstly comparing the extreme value of the metering error of each vehicle type obtained from one driving direction with the national error standard, judging whether the vehicle type metering error of each vehicle type in the driving direction is consistent, then comparing the extreme value of the metering error of each vehicle type obtained from the other driving direction with the national error standard, and judging whether the vehicle type metering error of each vehicle type in the other driving direction is consistent.

3. The metering detection method according to claim 1 or 2, wherein the calculating of the vehicle metering errors of all the vehicles in each vehicle test group comprises:

measuring the dynamic test weight of each vehicle in each vehicle test group in a constant-speed running state and the static test weight of each vehicle in a static state according to the same running direction;

and performing difference ratio calculation based on the dynamic test weight and the static test weight of each vehicle to obtain the vehicle metering error of each vehicle.

4. The metering detection method according to claim 1 or 2, wherein the calculating of the metering error extreme value corresponding to each vehicle type comprises: and subtracting the vehicle metering error with the minimum value from the vehicle metering error with the maximum value in all the metering errors corresponding to the same vehicle types to obtain a metering error extreme value corresponding to each vehicle type.

5. The metering detection method of claim 3 wherein the difference ratio operation is in accordance with the formula: p ═ C_{Movable part}—C_Quiet)/C_QuietX 100%, calculating a vehicle metering error for each vehicle, wherein,

p is the vehicle metering error;

C_{movable part}Dynamically testing the weight for the vehicle;

C_quietIs the static test weight of the vehicle.

6. The utility model provides a detect measurement detecting system of weighing system that does not stop which characterized in that includes:

the vehicle testing system comprises an acquisition module, a display module and a control module, wherein the acquisition module acquires a plurality of different vehicle testing groups, and the vehicle types and/or the vehicle arrangement sequences of each vehicle testing group are different;

the vehicle error calculation module is used for calculating vehicle metering errors of all vehicles in each vehicle test group;

the first judgment module is used for judging whether the calculated metering errors of all vehicles meet the national error standard or not;

the metering error extreme value calculating module is used for calculating the metering error extreme value corresponding to each vehicle according to the vehicle type for all the vehicle metering errors which are judged by the first judging module and meet the national error standard;

and the second judgment module is used for comparing the obtained extreme value of the metering error of each vehicle with the national error standard respectively and judging whether the vehicle type metering errors of each vehicle type are consistent or not.

7. The metering detection system of claim 6 wherein when the non-stop weighing system is a two-way metering system,

the vehicle error calculation module calculates the vehicle metering errors of all vehicles in each vehicle test group according to one driving direction, and then calculates the vehicle metering errors of all vehicles in each vehicle test group by replacing the other driving direction;

the second judging module compares the metering error extreme value of each vehicle type obtained from one driving direction with the national error standard respectively to judge whether the vehicle type metering errors of each vehicle type in the driving direction are consistent, then compares the metering error extreme value of each vehicle type obtained from the other driving direction with the national error standard respectively to judge whether the vehicle type metering errors of each vehicle type in the other driving direction are consistent.

8. The metrological detection system of claim 6 or 7,

the acquisition module includes:

the dynamic test weight obtaining submodule is used for obtaining the dynamic test weight of the vehicle measured by all vehicles in each vehicle test group in a constant-speed running state according to the same running direction;

the static test weight obtaining submodule is used for obtaining the static test weight obtained by measuring all types of vehicles in each vehicle test group in a static state;

and the vehicle error calculation module is used for calculating the difference ratio of the obtained dynamic test weight of each vehicle and the corresponding static test weight in each vehicle test group to obtain the vehicle metering error of each vehicle.

9. The metering detection system of claim 6 or 7 wherein the metering error extreme value calculating module subtracts the vehicle metering error with the minimum value from the vehicle metering error with the maximum value in all the vehicle metering errors corresponding to the same vehicle type to obtain the metering error extreme value corresponding to each vehicle type.

10. The metering detection system of claim 8 wherein the vehicle error calculation module calculates the vehicle error based on a calculation formula: p ═ C_{Movable part}—C_Quiet)/C_QuietX 100%, calculating a vehicle metering error for each vehicle, wherein,

p is the vehicle metering error;

C_{movable part}Dynamically testing the weight for the vehicle;

C_quietIs the static test weight of the vehicle.

Technical Field

The invention belongs to the technical field of metering, and particularly relates to a metering detection method and a metering detection system of a non-stop weighing system.

Background

The automatic weighing apparatus for dynamic road vehicles is widely applied to dynamic weighing and overload detection of domestic road trucks, the product metering detection work is developed according to national standards of GB/T21296.1-2020 Universal technical requirement for automatic weighing apparatus for dynamic road vehicles in China, and at least 3 different vehicle types are selected for field metering detection of the automatic weighing apparatus for dynamic road vehicles, and the automatic weighing apparatus for dynamic road vehicles is generally developed by a double-shaft rigid vehicle, a three-shaft or four-shaft rigid vehicle and a five-shaft or six-shaft articulated trailer. The dynamic test is respectively carried out on each vehicle type according to different passing speeds and different passing modes, but a 'one-vehicle one-weighing' mode is adopted, namely after a first vehicle finishes the whole process of weighing, weighing and weighing, a second vehicle can start weighing, only one vehicle can exist on a weighing platform at the same time, and two or more vehicles are not allowed to appear.

Since 2020, all domestic highways implement "truck entrance weighing", domestic related manufacturers have developed a novel dynamic highway vehicle automatic weighing apparatus capable of weighing without stopping, that is, after all previous vehicles are weighed, the second vehicle does not need to wait for the completion of weighing of the first vehicle, and can be continuously weighed, and the weighing platform can hold 3 trucks at most and weigh simultaneously, thereby realizing continuous dynamic weighing of a plurality of vehicles. However, the existing national standard does not provide a metering detection method for the dynamic truck scale with the non-stop weighing function, so that the domestic detection mechanism cannot carry out accurate metering detection for the dynamic road vehicle automatic weighing apparatus with the non-stop weighing function, and the metering accuracy of the dynamic road vehicle automatic weighing apparatus cannot be proved by qualified detection, so that the novel dynamic road vehicle automatic weighing apparatus lacks the metering detection authority, the dynamic road vehicle automatic weighing apparatus currently installed and used by a traffic department cannot start the non-stop weighing function, cannot exert the functional advantages of accurate weighing and rapid passing of products, and seriously influences the passing efficiency of domestic highways and the popularization and use of new technical products.

Disclosure of Invention

Objects of the invention

In order to overcome the defects, the invention aims to provide a metering detection method and a metering detection system of a non-stop weighing system, so as to solve the technical problems that the conventional non-stop weighing system is lack of metering accuracy detection and the precision of the metering system is difficult to ensure.

(II) technical scheme

In order to achieve the purpose, the technical scheme provided by the application is as follows:

a metering detection method of a non-stop weighing system comprises the following steps:

obtaining a plurality of different vehicle test groups, wherein the vehicle types and/or the vehicle arrangement sequences of each vehicle test group are different;

calculating the vehicle metering error of each vehicle in all vehicle test groups;

judging whether the metering error of each vehicle meets the national error standard or not;

calculating the corresponding metering error extreme value of each vehicle according to the vehicle type according to all the vehicle metering errors meeting the national error standard in all the obtained vehicle metering errors;

comparing the obtained extreme value of the metering error of each vehicle with the national error standard respectively, and judging whether the vehicle type metering errors of each vehicle type are consistent or not;

in the detection process, whether the vehicle metering error of each vehicle meets the national error standard is judged by calculating the vehicle metering error of each vehicle, if the vehicle metering error meets the national error standard, the vehicle type metering value of each vehicle independently metered by the non-stop weighing system is an accurate value, if the vehicle type metering value does not meet the national error standard, the metering value is an inaccurate value, the accuracy of the non-stop weighing system for metering the weight of each vehicle can be detected, in addition, after the metering detection of the weight of each vehicle is completed, the vehicle types are classified, then the metering error extreme value of each vehicle type is calculated, finally, the metering error extreme value of each vehicle is respectively compared with the national error standard, if the error extreme values of all types of vehicles are compared with the national error standard, the vehicle type metering errors of different types in all vehicle test groups are consistent, and if not, the vehicle type metering errors between the vehicles of different types are inconsistent, so that whether the vehicle metering errors of the vehicles of different types are consistent or not can be detected, the problem that the metering errors between the vehicles of different types are inconsistent and the metering accuracy is influenced is solved.

In some embodiments, when the non-stop weighing system is a two-way pass metering system,

calculating the vehicle metering error of each vehicle in all vehicle test groups comprises the following steps: calculating the vehicle metering error of each vehicle in each vehicle test group according to one driving direction, and then replacing the other driving direction to calculate the vehicle metering error of each vehicle in each vehicle test group;

judging whether the vehicle model metering errors of each vehicle type are consistent comprises the following steps: firstly, comparing the extreme value of the metering error of each vehicle type obtained from one driving direction with the national error standard, judging whether the vehicle type metering error of each vehicle type in the driving direction is consistent, then comparing the extreme value of the metering error of each vehicle type obtained from the other driving direction with the national error standard, and judging whether the vehicle type metering error of each vehicle type in the other driving direction is consistent;

the consistency of the metering errors of the vehicles and the metering errors of the vehicles of different types is detected independently through two different driving directions, and the metering accuracy of the bidirectional passing non-stop weighing system can be ensured.

In some embodiments, calculating the vehicle metering errors for all vehicles within each vehicle test group comprises:

measuring the dynamic test weight of each vehicle in each vehicle test group in a constant-speed running state and the static test weight of each vehicle in a static state according to the same running direction;

and performing difference ratio calculation based on the dynamic test weight and the static test weight of each vehicle to obtain the vehicle metering error of each vehicle.

In some embodiments, calculating the metric error extremum for each vehicle type includes: and subtracting the vehicle metering error with the minimum value from the vehicle metering error with the maximum value in all the vehicle metering errors corresponding to the same vehicle type to obtain a metering error extreme value corresponding to each vehicle type.

In some embodimentsIn the method, the difference ratio operation is performed according to the formula: p ═ C_{Movable part}—C_Quiet)/C_QuietX 100%, calculating a vehicle metering error for each vehicle, wherein,

p is the vehicle metering error;

C_{movable part}Dynamically testing the weight for the vehicle;

C_quietIs the static test weight of the vehicle.

This application on the other hand provides a measurement detecting system who detects weighing system that does not stop, includes:

the vehicle testing system comprises an acquisition module, a display module and a control module, wherein the acquisition module acquires a plurality of different vehicle testing groups, and the vehicle types and/or the vehicle arrangement sequences of each vehicle testing group are different;

the vehicle error calculation module is used for calculating vehicle metering errors of all vehicles in each vehicle test group;

the first judgment module is used for judging whether the calculated metering errors of all vehicles meet the national error standard or not;

the metering error extreme value calculating module is used for calculating the metering error extreme value corresponding to each vehicle according to the vehicle type for all the vehicle metering errors which are judged by the first judging module and meet the national error standard;

the second judgment module is used for comparing the obtained metering error extreme value of each vehicle with the national error standard respectively and judging whether the vehicle model metering errors of each vehicle type are consistent or not;

the method comprises the steps of setting a plurality of modules, mutually matching different modules, firstly calculating the vehicle metering error of each vehicle, then judging whether the vehicle metering error of each vehicle meets the national error standard, if the vehicle metering error meets the national error standard, indicating that the metering value of each vehicle type measured by the non-stop weighing system is an accurate value, and if the vehicle metering error does not meet the national error standard, indicating that the metering value is an inaccurate value, so as to detect the accuracy of the non-stop weighing system for metering the weight of each vehicle, in addition, after the vehicle metering error detection of each vehicle is completed, classifying the vehicle types, then calculating the metering error extreme value corresponding to each vehicle type, finally comparing the error extreme value of each vehicle with the national error standard, if the error extreme values of all types of vehicles meet the national error standard, indicating that the metering errors of different types of vehicles are consistent, and if not, the metering errors of the vehicles among different types of vehicles are inconsistent, so that the metering errors of the weights of the vehicles can be detected independently, the consistency of the metering errors among the vehicles of different types can also be detected, and the accuracy of the measurement of the non-stop weighing system can be greatly improved.

In some embodiments, when the non-stop weighing system is a two-way metering system,

the vehicle error calculation module calculates the vehicle metering errors of all vehicles in each vehicle test group according to one driving direction, and then replaces the other driving direction to calculate the vehicle metering errors of all vehicles in each vehicle test group;

the second judgment module compares the extreme value of the metering error of each vehicle type obtained from one driving direction with the national error standard respectively to judge whether the metering error of each vehicle type in the driving direction is consistent, then compares the extreme value of the metering error of each vehicle type obtained from the other driving direction with the national error standard respectively to judge whether the vehicle type metering error of each vehicle type in the other driving direction is consistent.

In some embodiments of the present invention, the,

the dynamic test weight obtaining submodule is used for obtaining the dynamic test weight of the vehicle measured by all vehicles in each vehicle test group in a constant-speed running state according to the same running direction;

the static test weight obtaining submodule is used for obtaining the static test weight obtained by measuring all types of vehicles in each vehicle test group in a static state;

and the vehicle error calculation module is used for calculating the difference ratio of the obtained dynamic test weight of each vehicle and the corresponding static test weight in each vehicle test group to obtain the vehicle metering error of each vehicle.

In some embodiments, the extreme value calculation module calculates the extreme value of the metering error corresponding to each vehicle type by subtracting the vehicle metering error with the minimum value from the vehicle metering error with the maximum value among all the vehicle metering errors corresponding to the same vehicle type.

In some embodiments, the vehicle error calculation module calculates the vehicle error based on the calculation: p ═ C_{Movable part}—C_Quiet)/C_QuietX 100%, calculating a vehicle metering error for each vehicle, wherein,

p is the vehicle metering error;

C_{movable part}Dynamically testing the weight for the vehicle;

C_quietIs the static test weight of the vehicle.

Drawings

FIG. 1 is a vehicle combination view of a first vehicle testing group of the inspection method of the present invention;

FIG. 2 is a vehicle combination diagram of a second vehicle test group of the detection method of the present invention;

FIG. 3 is a vehicle combination view of a third vehicle test group of the detection method of the present invention;

FIG. 4 is a vehicle combination chart for a fourth vehicle testing group of the detection method of the present invention;

FIG. 5 is a vehicle combination chart for a fifth vehicle testing group of the detection method of the present invention;

FIG. 6 is a vehicle combination chart for a sixth vehicle testing group of the detection method of the present invention;

FIG. 7 is a flow chart of a detection method of the present invention;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The invention provides a metering detection method of a non-stop weighing system, which comprises the following steps:

obtaining a plurality of different vehicle test groups, wherein the vehicle types and/or the vehicle arrangement sequences of each vehicle test group are different;

calculating the vehicle metering error of each vehicle in all vehicle test groups;

judging whether the metering error of each vehicle meets the national error standard or not;

calculating the corresponding metering error extreme value of each vehicle according to the vehicle type according to all the vehicle metering errors meeting the national error standard in all the obtained vehicle metering errors;

comparing the obtained extreme value of the metering error of each vehicle with the national error standard respectively, and judging whether the vehicle type metering errors of each vehicle type are consistent or not;

specifically, the weighing system that does not stop of this application is the automatic weighing apparatus of highway vehicle for the vehicle weight of measurement running state or quiescent condition, in-service use, the automatic weighing apparatus of highway vehicle is installed in intersection department, need not to park when the vehicle is gone and carries out the weight measurement, after the whole weighings of preceding car, the second car need not wait for first car and weighs the completion, can continue to weigh, the weighing platform can hold 3 trucks at most and weigh simultaneously, the continuous incessant dynamic weighing of many cars has been realized.

Because the weighing and metering method of the automatic weighing machine for the road vehicles is the prior art, the weighing and metering method is not repeated herein, and the method is mainly used for detecting the accuracy of the automatic weighing machine for the road vehicles for weighing and metering each vehicle independently and detecting the consistency of weighing and metering among vehicles of different types.

Specifically, the national error standard is GB/T21296.1-2020 Universal technical requirement for dynamic road vehicle automatic weighing apparatus, and the allowable range of the road vehicle automatic weighing apparatus for the error in the vehicle weighing process is clearly specified in the document, wherein P in the application_{Allow for}Namely the MPE which is the maximum allowable error of the corresponding accuracy grade in the file of the national standard GB/T21296.1-2020.

Specifically, when the vehicle metering error of each vehicle is detected independently, if the calculated vehicle metering error is in accordance with the national error standard after being compared with the national error standard, it indicates that the vehicle metering error metered by the metering system falls into the allowable error range, and the metered vehicle weight is an accurate value, otherwise, if the calculated vehicle metering error is not in accordance with the national error standard, it indicates that the metered vehicle weight is an inaccurate value, and the metering system needs to be adjusted.

Specifically, only if the vehicle metering errors of all the metered vehicles meet the national error standard, the vehicle type metering error consistency of different types of vehicles can be detected on the next step, the vehicle type metering error consistency is whether the metering error ranges between the different types of vehicles are consistent or not, and the metering system can be prevented from metering inaccurately by detecting the consistency of the metering errors of the different types of vehicles, so that the metering error ranges between the different types of vehicles are different.

Specifically, calculating the vehicle metering errors of all vehicles in each vehicle test group comprises:

firstly, acquiring dynamic test weight of vehicles measured in a constant-speed running state according to the same running direction of all vehicles in each vehicle test group and static test weight measured in a static state of the vehicles;

then, a vehicle weighing error is obtained for each vehicle by calculating the obtained dynamic test weight for each vehicle and the corresponding static test weight.

More specifically, when calculating the vehicle metering error, the calculation process of the dynamic test weight and the static test weight of each vehicle is as follows:

according to an error calculation formula: p ═ C_{Movable part}—C_Quiet)/C_QuietX 100%, calculating a vehicle metering error for each vehicle, wherein,

p is the vehicle metering error;

C_{movable part}Dynamically testing the weight for the vehicle;

C_quietIs the static test weight of the vehicle.

Specifically, calculating the extreme value of the metering error corresponding to each vehicle type includes:

and subtracting the vehicle metering error with the minimum value from the vehicle metering error with the maximum value in all the vehicle metering errors corresponding to the same type of vehicles to obtain a metering error extreme value corresponding to each type of vehicles.

Specifically, in the consistency judgment process, if the extreme value of the metering error of each vehicle type is compared with the national error standard, the extreme value of the metering error of each vehicle type meets the national error standard, that is, the error ranges of the metering systems for metering different types of vehicles are the same, and the problem of inconsistent metering errors of the vehicles of different types cannot occur, otherwise, if the extreme value of the metering error of one or more types of vehicles does not meet the national error standard, that is, the metering errors of the vehicle types are inconsistent, it indicates that the metering systems can have large deviation when metering the weights of the vehicles of different types, and the metering systems need to be adjusted again.

Specifically, if the non-stop weighing system may be a bidirectional metering system, that is, the vehicle may be weighed from the left or right of the metering system in two directions of travel, at this time, it is necessary to detect two directions of travel of the vehicle test set.

Specifically, in the detection process, calculating the vehicle metering errors of all vehicles in each vehicle test group includes: calculating the vehicle metering errors of all vehicles in each vehicle test group according to one driving direction, and then replacing the other driving direction to calculate the vehicle metering errors of all vehicles in each vehicle test group;

specifically, the step of judging whether the vehicle type metering errors of each vehicle type are consistent comprises the following steps: the method comprises the steps of comparing the extreme value of the metering error of each vehicle type obtained in one driving direction with the national error standard, judging whether the vehicle type metering errors of each vehicle type in the driving direction are consistent, comparing the extreme value of the metering error of each vehicle type obtained in the other driving direction with the national error standard, and judging whether the vehicle type metering errors of each vehicle type in the other driving direction are consistent.

Specifically, when the dynamic test weight of the vehicle in a certain driving direction is measured, it is required to ensure that the vehicle travels through the metering system at a constant speed in the same driving direction.

All tests should be initiated such that the test vehicle starts at a sufficient distance from the dynamic road vehicle automatic scale and with a sufficient vehicle acceleration distance such that the test vehicle can be driven at a prescribed speed towards the weighing platform and the vehicle should be kept as constant as possible centrally through the weighing platform.

Specifically, the types of vehicles in the same group may be completely the same or different, and the types of vehicles in different groups need to be guaranteed to be not completely the same or to be arranged in different orders.

The above detection process is described below using an example:

step one, obtaining a vehicle test group:

taking the combination of two-axle, three-axle and six-axle vehicles as an example, the same method can be used for four-axle and five-axle vehicles, and the combination of test sequences is shown in table 1. Arranging 3 test vehicles according to the sequence of table 1, wherein the standard vehicle type of the double-shaft test vehicle is C_IIThe three-axis detection vehicle standard model is C_IIIThe standard model of six-axis detection vehicle is C_{Six ingredients}And sequentially carrying out detection according to the vehicle test group sequence.

Vehicle test group number	Weighing sequence-front	Weighing sequence-in	Weighing sequence-back	Speed of operation
					1	Double-axle vehicle	Three-axle vehicle	Six-axle vehicle	5km/h
2	Double-axle vehicle	Six-axle vehicle	Three-axle vehicle	5km/h
					3	Three-axle vehicle	Double-axle vehicle	Six-axle vehicle	5km/h
4	Three-axle vehicle	Six-axle vehicle	Double-axle vehicle	5km/h
					5	Six-axle vehicle	Double-axle vehicle	Three-axle vehicle	5km/h
6	Six-axle vehicle	Three-axle vehicle	Double-axle vehicle	5km/h

TABLE 1

And secondly, calculating the vehicle metering errors of all vehicles in each vehicle test group:

2.1 group 1 test (please refer to FIG. 1)

2.1.1 front truck detection

The double-shaft test vehicle passes through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the double-shaft test vehicle displayed by the weighing display is recorded_{1 first two}And calculating the vehicle metering error of the double-shaft vehicle at the moment:

P_{1 first two}＝(C_{1 first two}—C_II)/C_II×100％。

2.1.2 Medium vehicle detection

The triaxial test vehicle closely follows the biaxial test vehicle to pass through the weighing platform at a constant speed of 5km/h in a straight line in the middle, and the triaxial vehicle weight C displayed by the weighing display is recorded_{1 in three}And calculating the vehicle metering error of the three-axis vehicle at the moment:

P_{1 in three}＝(C_{1 in three}—C_III)/C_III×100％。

2.1.3 rear vehicle detection

The six-axis test vehicle closely follows the three-axis test vehicle to pass through the weighing platform at a constant speed of 5km/h and in the middle straight line, and the weight C of the six-axis vehicle displayed by the weighing display is recorded_{1 last six}And calculating the vehicle metering error of the six-axis vehicle at the moment:

P_{1 last six}＝(C_{1 last six}—C_{Six ingredients})/C_{Six ingredients}×100％。

2.2 group 2 tests (please refer to FIG. 2)

2.2.1 front truck detection

The double-shaft test vehicle passes through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the double-shaft test vehicle displayed by the weighing display is recorded_{2 first two}And calculating the vehicle metering error of the double-shaft vehicle at the moment:

P_{2 first two}＝(C_{2 first two}—C_II)/C_II×100％。

2.2.2 Medium vehicle detection

The six-axis test vehicle closely follows the two-axis test vehicle and passes through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the six-axis vehicle displayed by the weighing display is recorded_{2 in six}And calculating the vehicle metering error of the six-axis vehicle at the moment:

P_{2 in six}＝(C_{2 in six}—C_{Six ingredients})/C_{Six ingredients}×100％。

2.2.3 rear vehicle detection

The three-axis test vehicle closely follows the six-axis test vehicle to pass through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the three-axis vehicle displayed by the weighing display is recorded_{2 last three}And calculating the vehicle metering error of the three-axis vehicle at the moment:

P_{2 last three}＝(C_{2 last three}—C_III)/C_III×100％。

2.3 group 3 test (please refer to FIG. 3)

2.3.1 front truck detection

The triaxial test vehicle passes through the weighing platform at a constant speed of 5km/h in a centered straight line, and the triaxial vehicle weight C displayed by the weighing display is recorded_{3 first three}And calculating the vehicle metering error of the three-axis vehicle at the moment:

P_{3 first three}＝(C_{3 first three}—C_III)/C_III×100％。

2.3.2 detecting middle vehicle

The double-shaft test vehicle closely follows the three-shaft test vehicle to pass through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the double-shaft vehicle displayed by the weighing display is recorded_{3 middle two}And calculating the vehicle metering error of the double-shaft vehicle at the moment:

P_{3 middle two}＝(C_{3 middle two}—C_II)/C_II×100％。

2.3.3 rear vehicle detection

The six-axis test vehicle closely follows the two-axis test vehicle and passes through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the six-axis vehicle displayed by the weighing display is recorded_{3 last six}And calculating the vehicle metering error of the six-axis vehicle at the moment:

P_{3 last six}＝(C_{3 last six}—C_{Six ingredients})/C_{Six ingredients}×100％。

2.4 group 4 tests (see FIG. 4)

2.4.1 front truck detection

The triaxial test vehicle passes through the weighing platform at a constant speed of 5km/h in a centered straight line, and the triaxial vehicle weight C displayed by the weighing display is recorded_{4 first three}And calculating the vehicle metering error of the three-axis vehicle at the moment:

P_{4 first three}＝(C_{4 first three}—C_III)/C_III×100％。

2.4.2 detecting middle vehicle

The six-axis test vehicle closely follows the three-axis test vehicle to pass through the weighing platform at a constant speed of 5km/h and in the middle straight line, and the weight C of the six-axis vehicle displayed by the weighing display is recorded_{4 middle six}And calculating the vehicle metering error of the six-axis vehicle at the moment:

P_{4 middle six}＝(C_{4 middle six}—C_{Six ingredients})/C_{Six ingredients}×100％。

2.4.3 rear vehicle detection

The double-shaft test vehicle closely follows the six-shaft test vehicle to pass through the weighing platform at a constant speed and in the middle straight line at the speed of 5km/h, and the weight C of the double-shaft vehicle displayed by the weighing display is recorded_{4 last two}And calculating the vehicle metering error of the double-shaft vehicle at the moment:

P_{4 last two}＝(C_{4 last two}—C_II)/C_II×100％。

2.5 group 5 assays (see FIG. 5)

2.5.1 front truck detection

Six-axis test vehicles pass through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the six-axis test vehicles displayed by the weighing display is recorded_{5 the first six}And calculating the vehicle metering error of the six-axis vehicle at the moment:

P_{5 the first six}＝(C_{5 the first six}—C_{Six ingredients})/C_{Six ingredients}×100％。

2.5.2 detecting middle vehicle

The double-shaft test vehicle closely follows the six-shaft test vehicle to pass through the weighing platform at a constant speed and in the middle straight line at the speed of 5km/h, and the weight C of the double-shaft vehicle displayed by the weighing display is recorded_{5 middle two}And calculating the vehicle metering error of the double-shaft vehicle at the moment:

P_{5 middle two}＝(C_{5 middle two}—C_II)/C_II×100％。

2.5.3 rear vehicle detection

The triaxial test vehicle closely follows the biaxial test vehicle to pass through the weighing platform at a constant speed of 5km/h in a straight line in the middle, and the triaxial vehicle weight C displayed by the weighing display is recorded_{5 last three}And calculating the vehicle metering error of the three-axis vehicle at the moment:

P_{5 last three}＝(C_{5 last three}—C_III)/C_III×100％。

2.6 group 6 tests (please refer to FIG. 6)

2.6.1 front truck detection

Six-axis test vehicles pass through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the six-axis test vehicles displayed by the weighing display is recorded_{6 the first six}Weight C of six-axis test vehicle statically tested_{Six ingredients}And calculating the vehicle metering error of the six-axis vehicle at the moment:

P_{6 the first six}＝(C_{6 the first six}—C_{Six ingredients})/C_{Six ingredients}×100％。

2.6.2 detecting middle vehicle

The three-axis test vehicle closely follows the six-axis test vehicle to pass through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the three-axis vehicle displayed by the weighing display is recorded_{6 middle three}And calculating the vehicle metering error of the three-axis vehicle at the moment:

P_{6 middle three}＝(C_{6 middle three}—C_III)/C_III×100％。

2.6.3 rear car detection

The double-shaft test vehicle closely follows the three-shaft test vehicle to pass through the weighing platform at a constant speed of 5km/h in a centered straight line, and the weight C of the double-shaft vehicle displayed by the weighing display is recorded_{6 the second}And calculating the vehicle metering error of the double-shaft vehicle at the moment:

P_{6 the second}＝(C_{6 the second}—C_II)/C_II×100％。

The third step: whether the vehicle metering error of the vehicle meets the national error standard or not:

3.1 judging that the vehicle metering errors of 3 vehicles obtained by each group of detection are not more than the allowable error P of the corresponding accuracy grade of the national standard GB/T21296.1-2020_{Allow for}The requirements of (1).

The fourth step: weighing without stopping the vehicle and keeping the consistency of the overall error:

in order to detect the consistency of the vehicle type metering errors of the dynamic road vehicle automatic weighing apparatus on each vehicle test group, the maximum value P of error difference values in 6 groups of 3 vehicles is calculated_{max difference of two}、P_{max difference of three}And P_{max difference of six}(taking a twin axle vehicle as an example, calculate P_{1 first two}、P_{2 first two}、P_{3 middle two}、P_{4 last two}、P_{5 middle two}、P_{6 the second}The difference between the maximum and minimum of these 6 data is denoted P_{max difference of two}) Requesting P for 3 vehicles_{max difference}Nor should it be larger than the corresponding accuracy grade allowable error P of the national standard GB/T21296.1-2020_{Allow for}The requirements of (1).

4. Schematic diagram of detection method

The weighing sequence in table 1 is arranged from front to back according to the direction of travel, and if the weighing sequence is a bidirectional-passing dynamic road vehicle automatic weighing apparatus, the weighing sequence is tested according to two directions of travel respectively.

As shown in fig. 1 to 6, which are schematic views of the test process performed in the order of vehicle test group numbers 1 to 6, respectively, a six-axle vehicle first passes through a weighing platform, a three-axle vehicle continuously follows up, and a two-axle vehicle has started to go up the weighing platform when a front axle portion of the six-axle vehicle is off-weighed.

5. Detection flow chart (fig. 7)

The detection flow chart is as follows, the detection of vehicle test groups 1 to 6 is carried out in sequence according to the flow chart during metering detection, each group is carried out in sequence according to the sequence of a front vehicle, a middle vehicle and a rear vehicle, the error judgment is carried out after the detection of each vehicle type, and if the error is less than or equal to the tolerance P_{Allow for}Then, the next testing link is carried out; if greater than the tolerance P_{Allow for}Then the item is determined to be not qualified. After the 6 groups of tests are finished, the consistency of the whole error of weighing without stopping the vehicle is judged, and finally, the weighing method is used for judging the consistency of the whole error of weighing without stopping the vehicleAnd finally completing the metering detection.

Specifically, in the vehicle test group, all the types of the vehicles in the same vehicle test group may be the same type of vehicle or different types of vehicle, and it is necessary to ensure that the types of the vehicles are not completely the same or the arrangement order of the vehicles is different in different vehicle test groups.

This application on the other hand provides a measurement detecting system who detects weighing system that does not stop, includes:

the vehicle testing system comprises an acquisition module, a display module and a control module, wherein the acquisition module acquires a plurality of different vehicle testing groups, and the vehicle types and/or the vehicle arrangement sequences of each vehicle testing group are different;

the vehicle error calculation module is used for calculating vehicle metering errors of all vehicles in each vehicle test group;

the first judgment module is used for judging whether the calculated metering errors of all vehicles meet the national error standard or not;

the metering error extreme value calculating module is used for calculating the metering error extreme value corresponding to each vehicle according to the vehicle type for all the vehicle metering errors which are judged by the first judging module and meet the national error standard;

the second judgment module is used for comparing the obtained metering error extreme value of each vehicle with the national error standard respectively and judging whether the vehicle model metering errors of each vehicle type are consistent or not;

the method comprises the steps of setting a plurality of modules, mutually matching different modules, firstly calculating the vehicle metering error of each vehicle, then judging whether the vehicle metering error of each vehicle meets the national error standard, if the vehicle metering error meets the national error standard, indicating that the metering value of each vehicle type measured by the non-stop weighing system is an accurate value, and if the vehicle metering error does not meet the national error standard, indicating that the metering value is an inaccurate value, so as to detect the accuracy of the non-stop weighing system for metering the weight of each vehicle, in addition, after the vehicle metering error detection of each vehicle is completed, classifying the vehicle types, then calculating the metering error extreme value corresponding to each vehicle type, finally comparing the error extreme value of each vehicle with the national error standard, if the error extreme values of all types of vehicles meet the national error standard, indicating that the metering errors of different types of vehicles are consistent, and if not, the metering errors of the vehicles among different types of vehicles are inconsistent, so that the metering errors of the weights of the vehicles can be detected independently, the consistency of the metering errors among the vehicles of different types can also be detected, and the accuracy of the measurement of the non-stop weighing system can be greatly improved.

In some embodiments, when the non-stop weighing system is a two-way metering system,

the vehicle error calculation module calculates the vehicle metering errors of all vehicles in each vehicle test group according to one driving direction, and then replaces the other driving direction to calculate the vehicle metering errors of all vehicles in each vehicle test group;

the second judgment module compares the extreme value of the metering error of each vehicle type obtained from one driving direction with the national error standard respectively to judge whether the metering error of each vehicle type in the driving direction is consistent, then compares the extreme value of the metering error of each vehicle type obtained from the other driving direction with the national error standard respectively to judge whether the vehicle type metering error of each vehicle type in the other driving direction is consistent.

In some embodiments of the present invention, the,

the dynamic test weight obtaining submodule is used for obtaining the dynamic test weight of the vehicle measured by all vehicles in each vehicle test group in a constant-speed running state according to the same running direction;

the static test weight obtaining submodule is used for obtaining the static test weight obtained by measuring all types of vehicles in each vehicle test group in a static state;

and the vehicle error calculation module is used for calculating the difference ratio of the obtained dynamic test weight of each vehicle and the corresponding static test weight in each vehicle test group to obtain the vehicle metering error of each vehicle.

In some embodiments, the extreme value calculation module calculates the extreme value of the metering error corresponding to each vehicle type by subtracting the vehicle metering error with the minimum value from the vehicle metering error with the maximum value among all the metering errors corresponding to the same vehicle type.

In some embodiments, the vehicle error calculation module calculates the vehicle error based on the calculation: p ═ C_{Movable part}—C_Quiet)/C_QuietX 100%, calculating a vehicle metering error for each vehicle, wherein,

p is the vehicle metering error;

C_{movable part}Dynamically testing the weight for the vehicle;

C_quietIs the static test weight of the vehicle.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.