CN117553890A

CN117553890A - Dynamic weighing method and device for vehicle

Info

Publication number: CN117553890A
Application number: CN202410048923.8A
Authority: CN
Inventors: 马维昊; 曲小飞; 吴兆君; 丛隽
Original assignee: Sany Heavy Equipment Co Ltd
Current assignee: Sany Heavy Equipment Co Ltd
Priority date: 2024-01-12
Filing date: 2024-01-12
Publication date: 2024-02-13

Abstract

The invention provides a vehicle dynamic weighing method and a device, which relate to the technical field of vehicle weighing, and the method comprises the following steps: outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position; collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring vehicle state parameters according to the weighing mode, and displaying weighing information and/or storing weighing record values under the condition that the vehicle state parameters meet preset conditions; wherein the vehicle state parameter includes at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current grade, and a vehicle weight change rate; the pressure sensor parameters include the value of the pressure sensor, the gauge of the pressure sensor, and the tilt angle of the arrangement of the pressure sensor. According to the invention, a plurality of vehicle state parameters are introduced, the current vehicle state is judged through preset conditions, the weight is limited, and the accuracy of the displayed or stored weighing value is improved.

Description

Dynamic weighing method and device for vehicle

Technical Field

The invention relates to the technical field of vehicle weighing, in particular to a vehicle dynamic weighing method and device.

Background

The mine car is mainly applied to the transportation process of earthwork, sand, aggregate and the like at present, the statistics of the pulling and transporting quantity is needed by the mining party, the method for counting the pulling and transporting quantity is a plurality of, the simplest method is to count the weight of the vehicle-mounted pulling and transporting material, so that the total pulling and transporting quantity is counted, the mine car is required to be provided with a weighing system, and the severe mining environment can cause considerable difficulty to the accuracy of the weighing system, so that the condition of inaccurate weighing value is caused.

In addition, since the weighing of the existing mine car is generally performed at the loading position or the unloading position for weighing display or recording, the weighing display or recording can face a very realistic problem: the shaking of the container is unstable due to the fact that the container is charged at the charging position, the weighing value can jump along with the shaking, and certain difficulties are caused in symmetric weighing display and recording. Meanwhile, the weighing display at the unloading position also has a certain limitation, which can cause certain difficulty to control the loading weight of the cargoes on site, and the weighing value of the running of the intermediate vehicle cannot be utilized.

In conclusion, the prior art has the problem of inaccurate weighing and displaying.

Disclosure of Invention

The invention provides a vehicle dynamic weighing method and device, which are used for solving the defect of inaccurate weighing and display in the prior art and realizing vehicle weighing and display with higher accuracy.

The invention provides a vehicle dynamic weighing method, which comprises the following steps:

outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position;

collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition;

wherein the vehicle state parameter comprises at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current gradient and a vehicle weight change rate; the pressure sensor parameters include the value of the pressure sensor, the specification of the pressure sensor and the arrangement inclination of the pressure sensor.

According to the vehicle dynamic weighing method provided by the invention, when the weighing mode is automatic weighing, the vehicle state parameters are acquired according to the weighing mode, and when the vehicle state parameters meet preset conditions, weighing information display and/or weighing record value storage are carried out, and the method specifically comprises the following steps:

acquiring vehicle state parameters;

under the condition that the vehicle state parameters meet a first preset condition, judging that the vehicle state is charging, and carrying out rising display on the real-time weight of the vehicle; the first preset condition includes: the container descending state is that the container descends to a preset container position, the vehicle gear is N gear, the parking brake is started, and the real-time weight of the vehicle is larger than a first preset threshold value and lasts for a preset duration;

Under the condition that the vehicle state parameters meet the second preset conditions, judging that the vehicle state is charging completion, and displaying the current real-time weight of the vehicle as a weighing record value; the second preset condition includes: the vehicle gear is non-neutral, parking braking is canceled, the real-time weight of the vehicle is larger than a second preset threshold value, and the vehicle weight change rate is smaller than a third preset threshold value;

under the condition that the vehicle state parameters meet a third preset condition, judging that the vehicle state is unloading completion, and storing the current weighing record value into a background; the third preset condition includes that the real-time weight of the vehicle is smaller than a fourth preset threshold value and lasts for a preset period of time.

According to the vehicle dynamic weighing method provided by the invention, when the weighing mode is manual weighing, the vehicle state parameters are acquired according to the weighing mode, and when the vehicle state parameters meet preset conditions, weighing information display and/or weighing record value storage are carried out, and the method specifically comprises the following steps:

acquiring a vehicle state parameter in response to the driver pressing a confirm weight button;

displaying a weighing success prompt and displaying the current real-time weight as a weighing record value under the condition that the vehicle state parameter meets a fourth preset condition; the fourth preset condition includes: the current gradient is smaller than or equal to a preset gradient threshold value, the vehicle gear is N gear, the parking brake is started, and the vehicle weight change rate is smaller than or equal to a preset change threshold value.

According to the vehicle dynamic weighing method provided by the invention, the vehicle state parameters are acquired in response to the pressing of a weight confirmation button by a driver, and then the vehicle dynamic weighing method further comprises the following steps:

displaying a first weighing failure prompt under the condition that the current gradient is larger than a preset gradient threshold value;

displaying a second weighing failure prompt under the condition that the gear of the vehicle is not N gear and/or the parking brake is cancelled;

and displaying a third weighing failure prompt under the condition that the vehicle weight change rate is larger than a preset change threshold value.

According to the method for dynamically weighing the vehicle, which is provided by the invention, the vehicle state parameters are obtained according to the weighing mode, and the weighing information display and/or the weighing record value storage are carried out under the condition that the vehicle state parameters meet the preset conditions, and the method further comprises the following steps:

acquiring vehicle state parameters in response to the driver pressing a weighing and peeling button;

displaying a peeling success prompt under the condition that the vehicle state parameters meet a fifth preset condition; the fifth preset condition includes: the current gradient is smaller than or equal to a preset gradient threshold value, the vehicle gear is N gear, the parking brake is started, the vehicle weight change rate is smaller than or equal to a preset change threshold value, and the real-time weight of the vehicle is smaller than or equal to a preset weight threshold value.

According to the method for dynamically weighing the vehicle, provided by the invention, the pressure sensor parameters are collected, the current real-time weight of the vehicle is calculated according to the pressure sensor parameters, and then the method further comprises the following steps:

acquiring vehicle state parameters;

displaying a weighing prompt under the condition that the vehicle state parameter meets a sixth preset condition; the sixth preset condition includes: the vehicle gear is N gear, parking brake is started, the real-time weight of the vehicle is larger than a preset prompt threshold value and lasts for a preset time period, and the real-time weight of the vehicle is larger than a preset multiple of a last weighing record value.

According to the vehicle dynamic weighing method provided by the invention, the vehicle state parameters further comprise a container lifting state; the method comprises the steps of acquiring vehicle state parameters according to the weighing mode, displaying weighing information and/or storing weighing record values under the condition that the vehicle state parameters meet preset conditions, and further comprising:

acquiring vehicle state parameters;

judging the vehicle state as a discharging state under the condition that the vehicle state parameter meets a seventh preset condition, storing the current weighing record value into a background and resetting; the seventh preset condition includes: the container lifting state is that the container is lifting and the speed is greater than zero, and the real-time weight of the vehicle is smaller than a fifth preset threshold value.

The invention also provides a vehicle dynamic weighing device, comprising:

a mode selection unit for outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position;

the weighing and displaying unit is used for collecting parameters of the pressure sensor and calculating the current real-time weight of the vehicle according to the parameters of the pressure sensor; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition;

The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the vehicle dynamic weighing method as described in any one of the above when executing the program.

The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a vehicle dynamic weighing method as described in any of the above.

The invention also provides a computer program product comprising a computer program which when executed by a processor implements a method of dynamically weighing a vehicle as described in any of the above.

According to the vehicle dynamic weighing method and device, the weighing mode selection information is output based on the fact that the vehicle reaches the target position, so that a driver can select a weighing mode; collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition; wherein the vehicle state parameter comprises at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current gradient and a vehicle weight change rate; the pressure sensor parameters include the value of the pressure sensor, the specification of the pressure sensor and the arrangement inclination of the pressure sensor. According to the invention, a plurality of vehicle state parameters are introduced, the current vehicle state is judged through preset conditions, the weight is limited, and the accuracy of the displayed or stored weighing value is improved.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of a vehicle dynamic weighing method provided by the invention;

FIG. 2 is a schematic diagram of the overall arrangement of a suspension cylinder pressure sensor according to one embodiment of the vehicle dynamic weighing method provided by the present invention;

FIG. 3 is a schematic diagram of a front suspension cylinder pressure sensor distribution of one embodiment of a vehicle dynamic weighing method provided by the invention;

FIG. 4 is a second flow chart of the method for dynamically weighing a vehicle according to the present invention;

FIG. 5 is a third flow chart of the method for dynamically weighing a vehicle according to the present invention;

FIG. 6 is a flow chart of a method for dynamically weighing a vehicle according to the present invention;

FIG. 7 is a flow chart of a method for dynamically weighing a vehicle according to the present invention;

FIG. 8 is a schematic view of a vehicle dynamic weighing apparatus according to the present invention;

Fig. 9 is a schematic structural diagram of an electronic device provided by the present invention.

Reference numerals:

201: a front suspension cylinder; 202: a rear suspension cylinder; 203: a first stress point; 204: a second stress point; 205: a third stress point; 206: the rear suspension cylinder is provided with a first arrangement dip angle; 207: the rear suspension cylinder is provided with a second arrangement dip angle; 208: the front suspension cylinder is provided with an inclination angle; 209: force equivalent point.

810: a mode selection unit; 820: and a weighing and displaying unit.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The vehicle dynamic weighing method of the present invention is described below with reference to fig. 1 to 7, and fig. 1 is one of flow diagrams of the vehicle dynamic weighing method provided by the present invention, as shown in fig. 1, where the method includes:

step 110: based on the vehicle reaching the target position, weighing mode selection information is output for the driver to select the weighing mode.

The vehicle mentioned in the present invention may be a mine car or other engineering vehicles, and the present invention is not limited thereto.

The target locations include a loading point and a unloading point. After the driver drives the vehicle to reach the charging point, the charging is started, the display screen displays according to the output weighing mode selection information, and the driver operates according to the display screen prompt information during charging, so that the manual weighing mode and the automatic weighing mode can be selected.

It should be noted that, after the vehicle reaches the target position, the driver further includes, before the weighing mode selection: the parking brake switch of the vehicle is pressed down, and the gear shifting handle is hung to N gear.

And likewise, after the loading is finished, a driver drives the vehicle to run to a discharging point, lifts the container to discharge, judges whether to discharge according to the relation between the real-time weight and the rated load, finishes the recording of the weighing value during discharging, and resets the weighing value to 0 after the discharging is finished.

It should be noted that during transportation, the weighing values show the weight recorded at the loading point.

Step 120: collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition;

After the weighing mode is selected, acquiring vehicle state parameters, judging through preset conditions based on the vehicle state parameters, and selecting specific conditions of weighing information display and/or weighing record value storage. The preset conditions are composed of limitations of various vehicle state parameters, and correspond to various weighing conditions respectively.

It should be noted that the weighing information display of the invention is realized through a display screen arranged on the vehicle, and the display content comprises the weighing value of the vehicle and other prompt information. The vehicle weighing values include the current real-time weight of the vehicle and the weight record value.

Further, the real-time weight of the vehicle is calculated by the pressure sensor parameters of the sensors arranged at the fixed position of the vehicle. Specifically, for convenience of description, the present invention performs calculation explanation of the real-time weight of the vehicle with the sensor arranged in the suspended cylinder, but this does not represent a limitation of the present invention. In some embodiments, the sensor for weighing uses a suspended cylinder arrangement, the arrangement being schematically shown in fig. 2 and 3. The parameters of the pressure sensor, namely the numerical value of the pressure sensor, the specification of the pressure sensor and the arrangement inclination angle of the pressure sensor are obtained. As shown in fig. 2, the values of the pressure sensors are front suspension cylinder pressure frrsum_mpa and rear suspension cylinder pressure rprsum_mpa; the specifications of the pressure sensor include: 0-40Mpa (voltage type pressure sensor), 0-60Mpa (current type pressure sensor); the arrangement inclination of the pressure sensor includes the arrangement inclination of the rear suspension cylinder 202 And the arrangement inclination angle of front suspension cylinder 201 +.>。

The real-time weight of the vehicle is obtained through the calculation of the pressure sensor parameters, and the process is as follows:

the supporting structure for integrally supporting the sprung weight only comprises three parts, namely a front suspension part, a rear suspension part and a supporting rod, wherein the equivalent stress points of the three parts and the sprung weight are respectively a first stress point 203, a second stress point 204 and a third stress point 205, and the sum of the vertical forces of the three stress points is equal to the total sprung weight, namely

(equation I)

According to the statics parallelogram rule, the resultant force of each force-bearing point vertically upwards can be decomposed into a component force (F21, F31) along the axial direction of the component and a component force (F22, F32) perpendicular to the component.

According to the axiom of the hydrostatic two-force balance, F21 and F31 act together on the equivalent first stress point and balance the two forces on the force equivalent acting line 1.

(equation II)

Converting F21 into F2, thereby obtaining the force of the second stress point, namely

(equation three)

Bringing the formula III into the formula II to obtain

(equation IV)

(equation five)

(equation six)

By substituting equations 4, 5, and 6 into equation 1, we can obtain

(equation seven)

In one embodiment, the rear suspension cylinder first arrangement tilt angle 206 is at no load The second arrangement inclination angle 207 of the rear suspension cylinder is = 66.004 DEG->The front suspension cylinder arrangement tilt angle 208 = 11.353 degrees ∈>=6 degrees; the first arrangement inclination angle 206 of the rear suspension cylinder is +.>The second arrangement inclination angle 207 of the rear suspension cylinder is = 68.514 DEG->10.293 degree front suspension cylinder arrangement tilt angle +.>=6 degrees; is brought into formula seven

No load:(equation eight)

Full load:(equation nine)

The conversion coefficient of pressure Mpa and ton obtained by the cylinder radius of 0.1m is 3.2057, and finally the front suspension cylinder pressure FRRSum_mpa and the rear suspension cylinder pressure RPRSum_mpa obtained by the sensor are brought into the conversion pressure to obtain:

under no-load conditions:

in the full load state:

pressure in unloaded stateCan be used for peeling, and pressure in full load state +.>Pressure in no-load state->The difference of (2) is the rated load.Correspondingly, in the non-fully loaded and non-empty state, the pressure is +.>The calculation can also be performed in the same way, which is not described in detail here, the pressure in the non-fully loaded and non-empty state>Pressure in no-load state->The difference value of the weight is the current real-time weight of the vehicle.

It can be appreciated that the accuracy of the weighing system stems from two parts, the weighing accuracy in the static state and the accuracy of the weighing data in the dynamic state: the weighing precision under the static state is influenced by the specific arrangement of the suspension cylinders, and when the whole vehicle has a plurality of stress points, the weighing precision is deduced by means of a mechanical theory, so that an accurate weighing formula is obtained to calculate a weighing value. The accuracy of weighing data under the dynamic condition is greatly influenced by complex and increasingly-changing environments of mining areas on the weighing system, and the preset jump is set to judge so as to increase the software coverage, so that interference factors are shielded as much as possible, the accuracy of the recorded weighing value is higher, and weight change quantity parameters in real-time recording are introduced.

Further, in some embodiments, as shown in fig. 4, in the case where the weighing mode is automatic weighing, the step of acquiring the vehicle state parameter according to the weighing mode, and in the case where the vehicle state parameter meets a preset condition, displaying weighing information and/or storing a weighing record value specifically includes:

acquiring vehicle state parameters;

Specifically, the automatic weighing does not require the driver to operate. In the automatic weighing mode, whether the vehicle is charged or not is judged according to the acquired vehicle state parameters so as to display different weighing information and/or store weighing record values. The first preset condition, the second preset condition and the third preset condition are preset conditions for judging the loading state of the vehicle and are respectively used for judging loading, loading completion and unloading completion.

The first preset condition includes: the container descending state is that the container descends to a preset container position, the vehicle gear is N gear, the parking brake is started, and the real-time weight of the vehicle is larger than a first preset threshold value and lasts for a preset duration. The container descending state is acquired through a container descending in-place sensor signal and is used for judging whether the container descends in place or not, and the vehicle gear and the container descending state are used for judging the intention of a driver. That is, the whole vehicle state is determined according to whether the cargo box is lowered in place, and after the vehicle is put into N-range and the parking brake is pressed, it is determined that the driver may have a weighing intention.

In this process, if the process is canceled halfway, the entire method jumps to the initial state.

And after judging that the weighing intention is possible, judging that the whole vehicle is loading until the real-time weight of the vehicle is recognized to be larger than a first preset threshold value and the preset duration is continued. In a specific embodiment, the first preset threshold is set to one tenth of the rated load. The preset time period is set to 2s. It should be emphasized that the logic of the present embodiment for the real-time weight change rate is: and judging whether the difference value between the current real-time weight of the vehicle and the real-time weight of the vehicle in the last second is smaller than 0.01 of the rated load or not after the time delay of 1 second is met, meeting and lasting for 2 seconds, considering that the container is in a stable state at the moment, and recording the weighing value.

And under the condition that the whole vehicle is charged, starting to display the real-time weight of the current vehicle of the whole vehicle in an ascending manner. The interval of the rising display may be set to a preset interval, and the rising real-time weight of the vehicle may be displayed at the preset interval, or the rising real-time weight of the vehicle may be continuously displayed.

The second preset condition includes: the vehicle gear is non-neutral and the parking brake is cancelled, the real-time weight of the vehicle is greater than a second preset threshold, and the rate of change of the weight of the vehicle is less than a third preset threshold. The vehicle gear is used for judging the intention of the driver, and when the driver cancels the parking brake, the intention that the driver possibly leaves is judged until the real-time weight of the vehicle is recognized to be larger than a second preset threshold value and the change rate of the weight of the vehicle is smaller than a third preset threshold value, and the completion of charging of the driver is judged. In a specific embodiment, the second preset threshold is set to half the rated load. The third preset threshold is set to 0.01.

And under the condition that the loading is judged to be completed, displaying the current real-time weight of the vehicle as a weighing record value. Specifically, in some embodiments, the real-time weighing value (the current real-time weight of the vehicle) at this time is recorded as a weighing record value, and after the vehicle travels a certain distance, the weighing record value is displayed on a display screen in a locked manner so as to prevent numerical jitter caused by jitter during traveling.

The third preset condition includes: the real-time weight of the vehicle is less than the fourth preset threshold value for a preset period of time. When the real-time weight of the vehicle is judged to be smaller than a fourth preset threshold value, the driver is considered to finish unloading, the current weighing record value, namely the final weighing record value, is stored in the background, and the display and recording of the primary weighing system are finished. In a specific embodiment, the fourth preset threshold is set to one tenth of the rated load.

Furthermore, the invention also comprises a man-machine interaction function and visual and audible feedback, wherein the functions comprise manual operation prompt, peeling condition prompt, loading condition prompt, fault prompt and the like, so that a driver can be better guided to finish weighing operation meeting environmental conditions.

In some embodiments, as shown in fig. 5, in the case where the weighing mode is manual weighing, the acquiring the vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value in the case where the vehicle state parameter meets a preset condition, specifically includes:

Specifically, when manual weighing is selected, a manual button is added, a large screen can display information such as 'please click for confirming the weight', when a driver considers that loading is completed and whether the current weighing environment meets the requirement or not can not be judged, the weight confirmation button is clicked, and whether weighing is successful or not is judged according to the acquired vehicle state parameters through preset conditions, namely whether the current environment meets the weighing requirement or not is judged. If the weighing is successful, the weighing success is prompted, the current real-time weight is displayed as a weighing record value, and if the weighing is failed, the failure reason is prompted, and the driver can adjust the state of the whole vehicle according to the failure reason.

It should be noted that, the purpose of designing the manual weighing operation is to enable the driver to be familiar with each influencing factor of weighing in one operation process, enable the driver to be familiar with the loading environment according to the long-term guiding operation, and understand the influence caused by the environment weighing system, so as to avoid the influence, and further enable the finally recorded weighing value to be more accurate.

The preset conditions comprise a fourth preset condition, mainly comprising judgment on the current environment so as to prompt a driver to make corresponding operations, wherein the judgment comprises judgment on the current gradient environment, the current gear and parking state and the current container steady state, and if the requirements are met, the weighing is displayed to be successful. Specifically, the fourth preset condition includes: the current gradient is smaller than or equal to a preset gradient threshold value, the vehicle gear is N gear, the parking brake is started, and the vehicle weight change rate is smaller than or equal to a preset change threshold value. That is, the current gradient environment is judged by the current gradient, the current gear and the parking state are judged by the gear of the vehicle, and the current container steady state is judged by the weight change rate of the vehicle. In one specific embodiment, the preset grade threshold is set to: 10 deg..

Further, if the fourth preset condition is not satisfied, for example:

and displaying a first weighing failure prompt under the condition that the current gradient is larger than a preset gradient threshold value. And if the current gradient is greater than the preset gradient threshold value, indicating that the current gradient environment is not suitable for weighing, and outputting a first weighing failure prompt. The first weighing failure cue is used to cue a weighing failure and to account for the reason of the weighing failure, including but not limited to "weighing failure, excessive grade".

And displaying a second weighing failure prompt under the condition that the vehicle gear is not N gear and/or the parking brake is cancelled. When the gear of the vehicle is not the N gear and/or the parking brake is cancelled, the current vehicle is in a non-parking state, a certain safety risk exists, and a second weighing failure prompt is output. The second weigh failure prompt is used for prompting weigh failure and explaining the reason of weigh failure, including but not limited to 'weigh failure, please park N-gear parking weigh'.

And displaying a third weighing failure prompt under the condition that the vehicle weight change rate is larger than a preset change threshold value. The vehicle weight change rate is greater than the preset change threshold value, which indicates that the container is not in a stable state, the loading is possibly incomplete, and a third weighing failure prompt is output. The third weigh failure prompt is used to prompt weigh failure and account for reasons of weigh failure including, but not limited to, "weigh failure, load incomplete".

Further, in some embodiments, as shown in fig. 6, the step of obtaining the vehicle state parameter according to the weighing mode, and performing weighing information display and/or weighing record value storage when the vehicle state parameter meets a preset condition, further includes:

Specifically, the peeling operation also serves as an important part of the weighing operation, and the actual cargo weight is equal to the current weighing weight (real-time weight of the vehicle) minus the peeling weight, so that the accuracy of the peeling weight also determines the accuracy factor of the weighing accuracy. And a peeling weighing button is added, a large screen can display information such as weighing and peeling, and when a driver clicks the weighing and peeling button, whether peeling is successful or not is judged according to the acquired vehicle state parameters through preset conditions, namely whether the current environment meets the peeling requirement or not is judged. If the weighing is successful, the peeling success is prompted, if the weighing is failed, the peeling failure is displayed, the failure reason is prompted, and the driver can adjust the state of the whole vehicle according to the failure reason.

The preset conditions comprise fifth preset conditions, mainly comprising judgment of the current environment so as to prompt a driver to make corresponding operations, wherein the judgment comprises judgment of the current gradient environment, the current gear and parking state, the current container steady state and weighing values, and if the requirements are met, the peeling is displayed to be successful. Specifically, the fifth preset condition includes: the current gradient is smaller than or equal to a preset gradient threshold value, the vehicle gear is N gear, the parking brake is started, the vehicle weight change rate is smaller than or equal to a preset change threshold value, and the real-time weight of the vehicle is smaller than or equal to a preset weight threshold value. That is, the current gradient environment is judged by the current gradient, the current gear and the parking state are judged by the gear of the vehicle, the current container steady state is judged by the weight change rate of the vehicle, and the current container loading and unloading state is judged by the real-time weight of the vehicle. In one specific embodiment, the preset grade threshold is set to: 10 deg.. The preset weight threshold is set as: 50% of the rated load of the vehicle.

Further, if the fifth preset condition is not satisfied, for example:

and displaying a first peeling failure prompt under the condition that the current gradient is greater than a preset gradient threshold value. And if the current gradient is greater than the preset gradient threshold, indicating that the current gradient environment is not suitable for peeling, and outputting a first peeling failure prompt. The first peeling failure cue is used to cue peeling failure and to indicate the cause of peeling failure, including but not limited to "peeling failure, please level road operation".

And displaying a second peeling failure prompt under the condition that the vehicle gear is not N gear and/or the parking brake is cancelled. When the gear of the vehicle is not the N gear and/or the parking brake is cancelled, the current vehicle is in a non-parking state, a certain safety risk exists, and a second peeling failure prompt is output. The second peeling failure prompt is used to prompt peeling failure and to indicate the reason for peeling failure, including but not limited to "peeling failure, please park N-gear park operation".

And displaying a third peeling failure prompt under the condition that the vehicle weight change rate is larger than a preset change threshold value. And outputting a third peeling failure prompt when the vehicle weight change rate is larger than the preset change threshold value, which indicates that the container is not in a stable state. A third peeling failure cue is used to cue peeling failure and to indicate the cause of peeling failure, including but not limited to "peeling failure, please keep the container stable".

And displaying a fourth peeling failure prompt when the real-time weight (weighing value) of the vehicle is larger than the preset weight threshold value. And if the real-time weight (weighing value) of the vehicle is larger than the preset weight threshold value, which indicates that the container is not empty, outputting a fourth peeling failure prompt. A fourth peeling failure prompt is used to prompt peeling failure and to indicate the cause of peeling failure, including but not limited to "peeling failure, please confirm that the cargo box is empty".

The peeling operation needs to be carried out on a flat land for weighing and calibrating, the system calculates the current weight value and stores the current weight value into the ferroelectric of the controller, whether the main body environment is required to meet the requirement or not is required to be required by a driver during calibration, whether peeling is successful or not is prompted by the driver during peeling, and if the peeling is unsuccessful, the failure cause is prompted, so that the driver can adjust the posture of the whole vehicle.

Further, in some embodiments, as shown in fig. 7, the collecting the pressure sensor parameter, calculating the current real-time weight of the vehicle according to the pressure sensor parameter, and then further includes:

acquiring vehicle state parameters;

Specifically, in the case where the sixth preset condition is satisfied, the indication that weighing is being performed is performed. Specifically, the ongoing weighing alert includes, but is not limited to, an alert message such as "in weighing, do not move" for alerting the driver that the vehicle is now being weighed, do not move.

The sixth preset condition comprises that the vehicle gear is N gear, the parking brake is started, the real-time weight of the vehicle is larger than a preset prompt threshold value and lasts for a preset time period, and the real-time weight of the vehicle is larger than a preset multiple of a last weighing record value. In one specific embodiment, the preset hint threshold is set to one tenth of the rated load and the preset multiple is set to 1.05 times. If the sixth preset condition is not met, the weighing is not performed when the loading or the loading is completed.

Further, in some embodiments, the vehicle state parameter further comprises a cargo box lifting state; the method comprises the steps of acquiring vehicle state parameters according to the weighing mode, displaying weighing information and/or storing weighing record values under the condition that the vehicle state parameters meet preset conditions, and further comprising:

acquiring vehicle state parameters;

Specifically, in order to prevent the whole vehicle from being powered down in the loading process, the restarting parameter is reset, so that the state machine cannot jump, the vehicle state parameter also comprises a container lifting state, and the container lifting state is obtained through a container descending sensor signal.

And judging according to the acquired vehicle state parameters through preset conditions. The preset conditions include a seventh preset condition including: the container lifting state is that the container is lifting and the speed is greater than zero, and the real-time weight of the vehicle is smaller than a fifth preset threshold value. That is, if the real-time weight of the vehicle is less than the fifth preset threshold while lifting, it is also explained that the vehicle is unloaded, the state is reset after the unloading is completed, and the recorded value is recorded in the background. In a specific embodiment, the fifth preset threshold is set to one tenth of the rated load.

The invention judges the current vehicle state through the vehicle state parameters, prompts and guides the driver to eliminate the environmental influence, including prompting the driver that weighing failure and the reasons of the failure are which weighing conditions are not satisfied, and the accuracy of the weighing value can be increased by culturing the good driving habit of the driver; introducing coefficients such as a weighing weight change rate and the like to limit, so that a weighing value recorded at a charging place accords with an actual value as much as possible; some important coefficients are set as calibratable parameters: such as the weight change rate, the respective weight threshold percentages, etc., are adjusted appropriately to accommodate the driving habits of the driver. The vehicle dynamic weighing method provided by the invention comprises an accurate real-time weighing method and display and recording logic of weighing values. In this patent, through initiative and automatic mode update weighing value simultaneously show, reduce the abominable environmental factor that influences weighing value precision from a plurality of angles, like slope, packing box shake etc to with the most accurate weighing value show on the platform, and finally record in the backstage and supply the customer to inquire about and use.

Further, in some embodiments, the system further includes a prompt for fault class, which is divided into a primary fault and a secondary fault, where the primary fault does not affect the use of the basic function, and is displayed in the background so as to facilitate maintenance and inspection, and the secondary fault needs to be displayed by a popup window, and needs to be found and overhauled in time. The first-level faults comprise abnormal pressure display, abnormal storage and the like of the sensor, and the second-level faults comprise serious short-circuit faults and the like of the sensor. The embodiment adds an abnormality and fault diagnosis function to help a driver locate and troubleshoot the fault.

According to the vehicle dynamic weighing method provided by the invention, the weighing mode selection information is output based on the fact that the vehicle reaches the target position, so that a driver can select the weighing mode; collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition; wherein the vehicle state parameter comprises at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current gradient and a vehicle weight change rate; the pressure sensor parameters include the value of the pressure sensor, the specification of the pressure sensor and the arrangement inclination of the pressure sensor. According to the invention, a plurality of vehicle state parameters are introduced, the current vehicle state is judged through preset conditions, the weight is limited, and the accuracy of the displayed or stored weighing value is improved.

The vehicle dynamic weighing device provided by the invention is described below, and the vehicle dynamic weighing device described below and the vehicle dynamic weighing method described above can be referred to correspondingly. Fig. 8 is a schematic structural diagram of a dynamic weighing apparatus for a vehicle according to the present invention, as shown in fig. 8, the apparatus includes:

a mode selection unit 810 for outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position;

a weighing and displaying unit 820 for collecting pressure sensor parameters and calculating the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition;

Based on the above embodiment, in the device, when the weighing mode is automatic weighing, the method obtains a vehicle state parameter according to the weighing mode, and displays weighing information and/or stores a weighing record value when the vehicle state parameter meets a preset condition, specifically including:

Acquiring vehicle state parameters;

Based on the above embodiment, in the device, when the weighing mode is manual weighing, the method acquires a vehicle state parameter according to the weighing mode, and displays weighing information and/or stores a weighing record value when the vehicle state parameter meets a preset condition, specifically including:

Based on the above embodiment, in the apparatus, the acquiring the vehicle state parameter in response to the driver pressing the confirm weight button further includes:

Based on the above embodiment, in the device, the acquiring the vehicle state parameter according to the weighing mode, displaying weighing information and/or storing a weighing record value when the vehicle state parameter meets a preset condition, and before further includes:

Based on the above embodiment, in the device, the collecting the pressure sensor parameter, calculating according to the pressure sensor parameter to obtain the current real-time weight of the vehicle, and then further includes:

acquiring vehicle state parameters;

Acquiring vehicle state parameters;

According to the vehicle dynamic weighing device provided by the invention, the weighing mode selection information is output based on the fact that the vehicle reaches the target position, so that a driver can select a weighing mode; collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition; wherein the vehicle state parameter comprises at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current gradient and a vehicle weight change rate; the pressure sensor parameters include the value of the pressure sensor, the specification of the pressure sensor and the arrangement inclination of the pressure sensor. According to the invention, a plurality of vehicle state parameters are introduced, the current vehicle state is judged through preset conditions, the weight is limited, and the accuracy of the displayed or stored weighing value is improved.

Fig. 9 illustrates a physical schematic diagram of an electronic device, as shown in fig. 9, which may include: processor 910, communication interface (Communications Interface), memory 930, and communication bus 940, wherein processor 910, communication interface 920, and memory 930 communicate with each other via communication bus 940. Processor 910 may invoke logic instructions in memory 930 to perform a vehicle dynamic weighing method comprising: outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position; collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition; wherein the vehicle state parameter comprises at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current gradient and a vehicle weight change rate; the pressure sensor parameters include the value of the pressure sensor, the specification of the pressure sensor and the arrangement inclination of the pressure sensor.

Further, the logic instructions in the memory 930 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of performing the method of dynamic weighing of a vehicle provided by the methods described above, the method comprising: outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position; collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition; wherein the vehicle state parameter comprises at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current gradient and a vehicle weight change rate; the pressure sensor parameters include the value of the pressure sensor, the specification of the pressure sensor and the arrangement inclination of the pressure sensor.

In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the method for dynamically weighing a vehicle provided by the above methods, the method comprising: outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position; collecting pressure sensor parameters, and calculating to obtain the current real-time weight of the vehicle according to the pressure sensor parameters; acquiring a vehicle state parameter according to the weighing mode, and displaying weighing information and/or storing a weighing record value under the condition that the vehicle state parameter meets a preset condition; wherein the vehicle state parameter comprises at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current gradient and a vehicle weight change rate; the pressure sensor parameters include the value of the pressure sensor, the specification of the pressure sensor and the arrangement inclination of the pressure sensor.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for dynamically weighing a vehicle, comprising:

outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position; the weighing mode comprises automatic weighing and manual weighing;

wherein the vehicle state parameter comprises at least one of a cargo box descent state, a vehicle gear, a vehicle real-time weight, a current gradient and a vehicle weight change rate; the pressure sensor parameters comprise the numerical value of the pressure sensor, the specification of the pressure sensor and the arrangement dip angle of the pressure sensor;

under the condition that the weighing mode is automatic weighing, acquiring vehicle state parameters according to the weighing mode, and displaying weighing information and/or storing weighing record values under the condition that the vehicle state parameters meet preset conditions, wherein the method specifically comprises the following steps:

acquiring vehicle state parameters;

under the condition that the vehicle state parameters meet a third preset condition, judging that the vehicle state is unloading completion, and storing the current weighing record value into a background; the third preset condition comprises that the real-time weight of the vehicle is smaller than a fourth preset threshold value and lasts for a preset duration;

under the condition that the weighing mode is manual weighing, acquiring vehicle state parameters according to the weighing mode, and displaying weighing information and/or storing weighing record values under the condition that the vehicle state parameters meet preset conditions, wherein the method specifically comprises the following steps:

2. The vehicle dynamic weighing method according to claim 1, wherein said acquiring vehicle state parameters in response to a driver pressing a confirm weight button further comprises:

3. The method according to claim 1, wherein the step of acquiring the vehicle state parameter according to the weighing mode, and performing the weighing information display and/or the weighing record value storage if the vehicle state parameter satisfies a preset condition, further comprises:

4. The method of claim 1, wherein the collecting the pressure sensor parameter, calculating the current real-time weight of the vehicle according to the pressure sensor parameter, and further comprising:

acquiring vehicle state parameters;

5. The vehicle dynamic weighing method of claim 1, wherein said vehicle state parameters further comprise a cargo box lifting state; the method comprises the steps of acquiring vehicle state parameters according to the weighing mode, displaying weighing information and/or storing weighing record values under the condition that the vehicle state parameters meet preset conditions, and further comprising:

acquiring vehicle state parameters;

6. A vehicle dynamic weighing apparatus, comprising:

a mode selection unit for outputting weighing mode selection information for a driver to select a weighing mode based on the arrival of the vehicle at the target position; the weighing mode comprises automatic weighing and manual weighing;

Acquiring vehicle state parameters;

7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the vehicle dynamic weighing method according to any one of claims 1 to 5 when executing the program.

8. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the vehicle dynamic weighing method according to any one of claims 1 to 5.