CN111089984A - Method and device for determining vehicle speed, storage medium, electronic equipment and vehicle - Google Patents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
- G01P3/54—Devices characterised by the use of electric or magnetic means for measuring linear speed by measuring frequency of generated current or voltage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
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Abstract
The disclosure relates to a method and a device for determining a vehicle speed, a storage medium, an electronic device and a vehicle. The method comprises the following steps: acquiring a first vehicle speed in the running process of a vehicle, wherein the first vehicle speed is the vehicle speed of the vehicle detected by a vehicle speed sensor; acquiring a second vehicle speed in the running process of the vehicle, wherein the second vehicle speed is the vehicle speed of the vehicle detected by a GPS (global positioning system) positioning device in the vehicle; judging whether the first vehicle speed is accurate or not according to the first vehicle speed and the second vehicle speed; and if the first vehicle speed is not accurate, determining the vehicle speed of the vehicle according to the first vehicle speed and the second vehicle speed. Therefore, after the tire, the drive axle and other parts of the vehicle are damaged or replaced, the vehicle speed detected by the vehicle speed sensor can be automatically corrected, and other problems caused by inaccurate vehicle speed detection are avoided. In the scheme disclosed by the invention, the determined vehicle speed is more accurate, and the method is reliable and practical.
Description
Technical Field
The present disclosure relates to the field of vehicle data detection, and in particular, to a method and an apparatus for determining a vehicle speed, a storage medium, an electronic device, and a vehicle.
Background
As the technology of communication and intelligent devices matures, the degree of automation of vehicles increases. Various intelligent driving assistance systems are developed in vehicles in succession, and help drivers to perform auxiliary control in the processes of vehicle driving, parking and the like.
In various driving assistance systems, the accuracy of parameter detection for various vehicles is highly required, and for example, accurate detection of vehicle speed is particularly important. When a vehicle has parts (such as tires, a drive axle and the like) replaced or damaged, the replacement or damaged replacement of the parts can cause the parameter for calculating the vehicle speed to be changed, further the calculation of the vehicle speed is influenced, and the vehicle speed display of the instrument and the functions of a plurality of intelligent auxiliary systems are caused to be in problems during application. If the displayed speed and mileage of the instrument are inaccurate, the user may be misled, and accidents such as traffic violation are caused.
Disclosure of Invention
The purpose of the present disclosure is to provide a reliable and practical method and device for determining vehicle speed, a storage medium, an electronic device and a vehicle.
In order to achieve the above object, the present disclosure provides a method of determining a vehicle speed, the method comprising:
acquiring a first vehicle speed in the running process of a vehicle, wherein the first vehicle speed is the vehicle speed of the vehicle detected by a vehicle speed sensor;
acquiring a second vehicle speed in the running process of the vehicle, wherein the second vehicle speed is the vehicle speed of the vehicle detected by a GPS (global positioning system) positioning device in the vehicle;
judging whether the first vehicle speed is accurate or not according to the first vehicle speed and the second vehicle speed;
and if the first vehicle speed is not accurate, determining the vehicle speed of the vehicle according to the first vehicle speed and the second vehicle speed.
Optionally, the method further comprises: and if the first vehicle speed is determined to be accurate, determining the first vehicle speed as the vehicle speed of the vehicle.
Optionally, determining whether the first vehicle speed is accurate according to the first vehicle speed and the second vehicle speed includes any one of the following:
if the absolute value of the difference between the first vehicle speed and the second vehicle speed is larger than a preset difference threshold value, judging that the first vehicle speed is inaccurate;
and if the ratio of the first vehicle speed to the second vehicle speed exceeds a preset ratio threshold range, judging that the first vehicle speed is inaccurate.
Optionally, if it is determined that the first vehicle speed is inaccurate, determining the vehicle speed of the vehicle according to both the first vehicle speed and the second vehicle speed includes:
if the first vehicle speed is not accurate, correcting the coefficient according to the second vehicle speed, wherein the first vehicle speed is the product of the number of pulses acquired by the vehicle speed sensor and the coefficient;
and determining the speed of the vehicle according to the corrected coefficient.
Optionally, if it is determined that the first vehicle speed is inaccurate, the step of correcting the coefficient according to the second vehicle speed is performed according to the following formula:
Krear end＝KFront side*(V2/V1)
Wherein, KRear endDenotes the corrected coefficient, KFront sideDenotes the coefficient before correction, V1Representing said first vehicle speed, V2Representing the second vehicle speed.
Optionally, the method further comprises: outputting the determined vehicle speed on an instrument panel of the vehicle.
Optionally, the method further comprises:
calculating a mileage traveled by the vehicle according to the determined vehicle speed, and outputting the calculated mileage on an instrument panel of the vehicle.
The present disclosure also provides an apparatus for determining a vehicle speed, the apparatus comprising:
the vehicle speed acquisition module is used for acquiring a first vehicle speed in the running process of a vehicle, wherein the first vehicle speed is the vehicle speed of the vehicle detected by a vehicle speed sensor;
the second acquisition module is used for acquiring a second vehicle speed in the running process of the vehicle, wherein the second vehicle speed is the vehicle speed of the vehicle detected by a GPS positioning device in the vehicle;
the judging module is used for judging whether the first vehicle speed is accurate or not according to the first vehicle speed and the second vehicle speed;
the first determining module is used for determining the vehicle speed of the vehicle according to the first vehicle speed and the second vehicle speed if the first vehicle speed is judged to be inaccurate.
The present disclosure also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the above-described method provided by the present disclosure.
The present disclosure also provides an electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the above-described method provided by the present disclosure.
The present disclosure also provides a vehicle comprising a vehicle speed sensor, a GPS positioning device and a control device for performing the steps of the above method provided by the present disclosure.
By the technical scheme, whether the vehicle speed detected by the vehicle speed sensor is accurate or not is judged by utilizing the vehicle speed signal of the GPS positioning device, and if the vehicle speed detected by the vehicle speed sensor is not accurate, the vehicle speed detected by the vehicle speed sensor can be calibrated by utilizing the vehicle speed signal of the GPS positioning device. Therefore, after the tire, the drive axle and other parts of the vehicle are damaged or replaced, the vehicle speed detected by the vehicle speed sensor can be automatically corrected, the problem that the vehicle speed is inaccurate to detect and other problems are caused is avoided, and in the scheme disclosed by the invention, the determined vehicle speed is more accurate, and the method is reliable and practical.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
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The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart of a method of determining vehicle speed provided by an exemplary embodiment;
FIG. 2 is a flow chart of a method of determining vehicle speed provided by another exemplary embodiment;
FIG. 3 is a block diagram of an apparatus for determining vehicle speed provided by an exemplary embodiment;
FIG. 4 is a block diagram of an electronic device shown in an exemplary embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
When the vehicle is used, parameters of the vehicle are changed due to tire replacement, rear axle replacement and the like, and if the constant of the instrument is not changed in time, the instrument displays the speed and the mileage incorrectly, the user is misled, and traffic violation is caused. Or, if the vehicle offline detection is in a problem, the constant of the instrument is wrote incorrectly and the instrument is offline and put on the market, so that the instrument displays abnormal speed and mileage.
The inventor thinks that the GPS positioning device can rapidly and accurately measure and calculate the vehicle positioning and speed value after receiving satellite signals in the sky, and the accuracy of the speed value can reach 0.5 km/h. This can provide the technical basis for the combination meter to utilize GPS signal to carry out the calibration of speed, mileage. And at present, many heavy trucks are matched with a driving recorder and have the GPS function. With the upgrading of the consumption of people and the change of consumption concept, multimedia with GPS function is assembled on the car and even the light truck, so that the combined instrument provides feasibility for the calibration of the speed and the mileage by using the GPS signals of the devices.
FIG. 1 is a flow chart of a method of determining vehicle speed provided by an exemplary embodiment. As shown in fig. 1, the method may include the following steps.
In step S11, a first vehicle speed is acquired during the running of the vehicle. The first vehicle speed is a vehicle speed of the vehicle detected by a vehicle speed sensor.
In step S12, a second vehicle speed is acquired while the vehicle is running. The second vehicle speed is a vehicle speed of the vehicle detected by a GPS positioning device in the vehicle.
And step S13, judging whether the first vehicle speed is accurate or not according to the first vehicle speed and the second vehicle speed.
And step S14, if the first vehicle speed is not accurate, determining the vehicle speed of the vehicle according to the first vehicle speed and the second vehicle speed.
When the vehicle speed sensor detects the vehicle speed, usually, an instrument constant (herein, simply referred to as a coefficient) is calculated according to the number of pulses output by one turn of the vehicle speed sensor, the radius of a tire, the speed ratio of a drive axle, and the like, and then the vehicle speed and the mileage of the vehicle are calculated by multiplying the coefficient by the number of pulses acquired by the vehicle speed sensor.
The GPS positioning device calculates the positioning and the vehicle speed through the received satellite signals. The GPS positioning device and the vehicle speed sensor detect the vehicle speed by two completely different methods. Generally, the vehicle instrument panel displays the detection result of a vehicle speed sensor, and the vehicle speed required by many driving assistance systems in the vehicle is also detected by the vehicle speed sensor.
The method in the scheme can be carried out periodically as long as the vehicle runs without other conditions, and can output the alarm message when the first vehicle speed is judged to be inaccurate. Or automatically in the event that the vehicle finds that a device has failed or that the equipment has been replaced. The turn-on may be followed by a periodic detection. Or, the step can be manually triggered to be started, a special soft key or a special hard key can be arranged in the vehicle, and the user can start the steps in the disclosure by triggering the special key when needed.
By the technical scheme, whether the vehicle speed detected by the vehicle speed sensor is accurate or not is judged by utilizing the vehicle speed signal of the GPS positioning device, and if the vehicle speed detected by the vehicle speed sensor is not accurate, the vehicle speed detected by the vehicle speed sensor can be calibrated by utilizing the vehicle speed signal of the GPS positioning device. Therefore, after the tire, the drive axle and other parts of the vehicle are damaged or replaced, the vehicle speed detected by the vehicle speed sensor can be automatically corrected, the problem that the vehicle speed is inaccurate to detect and other problems are caused is avoided, and in the scheme disclosed by the invention, the determined vehicle speed is more accurate, and the method is reliable and practical.
Wherein, the method can also comprise: and if the first vehicle speed is determined to be accurate, determining the first vehicle speed as the vehicle speed of the vehicle. In one embodiment, the step of correcting may be automatically stopped when the first vehicle speed is determined to be accurate in all of the predetermined detection periods, assuming that correction is temporarily not necessary.
Whether the first vehicle speed is accurate or not can be judged according to the difference between the first vehicle speed and the second vehicle speed. If the difference is too large, the first vehicle speed can be judged to be inaccurate, and if the difference is smaller, the first vehicle speed can be judged to be accurate. In an embodiment, on the basis of fig. 1, the step of determining whether the first vehicle speed is accurate (step S13) may include any one of the following steps:
if the absolute value of the difference between the first vehicle speed and the second vehicle speed is larger than a preset difference threshold value, the first vehicle speed is judged to be inaccurate; or, if the ratio of the first vehicle speed to the second vehicle speed exceeds a predetermined ratio threshold range, the first vehicle speed is determined to be inaccurate.
That is, if the absolute value of the difference between the first vehicle speed and the second vehicle speed is greater than a predetermined difference threshold (e.g., 5km/h), the difference between the first vehicle speed and the second vehicle speed may be considered to be too large; if the ratio of the two exceeds a predetermined ratio threshold range (e.g., 0.9-1.1), the difference between the two can also be considered too large. The predetermined difference threshold and the predetermined ratio threshold may be experimentally or empirically derived.
In the embodiment, whether the first vehicle speed is accurate or not can be judged according to the simple ratio or the simple difference, the algorithm is simple, the processing speed is high, and errors are not easy to occur.
In still another embodiment, on the basis of fig. 1, if it is determined that the first vehicle speed is inaccurate, the step of determining the vehicle speed of the vehicle from both the first vehicle speed and the second vehicle speed (step S14) may include the steps of:
if the first vehicle speed is not accurate, correcting the coefficient according to a second vehicle speed, wherein the first vehicle speed is the product of the number of pulses acquired by the vehicle speed sensor and the coefficient; and determining the speed of the vehicle according to the corrected coefficient.
As described above, the coefficients are the meter constants calculated from the number of output pulses per revolution of the vehicle speed sensor, the tire radius, the transaxle speed ratio, and the like. And multiplying the coefficient by the pulse number acquired by the vehicle speed sensor to calculate the vehicle speed of the vehicle. It can be seen that this coefficient is a constant related to vehicle parameters such as tire radius, transaxle speed ratio, etc. The coefficients should normally be fixed. When a tire or other component is broken down or replaced, the tire radius, the axle ratio, etc. may change, and the original value for the vehicle speed sensor to calculate the vehicle speed is not modified accordingly, so that if the vehicle speed continues to be calculated by the previously fixed coefficient, the calculated vehicle speed may be inaccurate.
In the present disclosure, no attention is paid to the case of a malfunctioning or replaced accessory, but the coefficient is corrected based on the vehicle speed detected by another GPS positioning method that does not rely on these devices. After the coefficient is corrected, the later vehicle speed can be calculated according to the corrected coefficient and the pulse number acquired by the vehicle speed sensor. In the embodiment, the coefficient is corrected through the vehicle speed detected by the GPS positioning method, so that the aim of correcting the vehicle speed is fulfilled.
In an embodiment, on the basis of the above embodiment, if it is determined that the first vehicle speed is inaccurate, the step of correcting the coefficient according to the second vehicle speed may be performed by the following formula:
Krear end＝KFront side*(V2/V1)
Wherein, KRear endDenotes the corrected coefficient, KFront sideDenotes the coefficient before correction, V1Indicates a first vehicle speed, V2Indicating a second vehicle speed.
Since the vehicle speed is the product of the coefficient and the number of pulses acquired by the vehicle speed sensor, the calculated vehicle speed is in direct proportion to the applied coefficient. We can consider that the second vehicle speed corresponds to the vehicle speed calculated from the corrected coefficient, and therefore the ratio V of the second vehicle speed to the first vehicle speed2/V1Is equal to the ratio K of the coefficient after correction to the coefficient before correctionRear end/KFront sideThus, the above formula is obtained.
In this embodiment, the actual situation of focusing on each coefficient-dependent device is avoidedThe second vehicle speed is used as the corrected vehicle speed, and the corrected coefficient K is obtained through a simple proportional relationRear endThe method has the advantages of ingenious conception, simple calculation and high processing speed. After the corrected coefficient is obtained, the vehicle speed can be calculated according to the corrected coefficient and the pulse number acquired by the vehicle speed sensor.
After determining the vehicle speed, the determined vehicle speed may be output on an instrument panel of the vehicle. The distance traveled by the vehicle may also be calculated based on the determined vehicle speed and the calculated distance may be output on a dashboard of the vehicle. At the moment, the speed and the mileage after correction are displayed in the instrument panel of the vehicle, and the accuracy is high. In the assistant driving system of the vehicle, the vehicle speed determined in the disclosure can also be adopted, so that the assistant driving system can control the vehicle more accurately.
FIG. 2 is a flow chart of a method of determining vehicle speed provided by another exemplary embodiment. In FIG. 2, a constant K before correction is calculated according to the collected rolling radius of the tire, the velocity ratio of the odometer, the number of pulses per revolution and the velocity ratio of the drive axleFront sideThen according to the pulse number collected by the vehicle speed sensor and the constant KFront sideCalculating a first vehicle speed V1. According to V1-V2Is decided, m is a predetermined difference threshold.
When-m is less than or equal to V1-V2When m is less than or equal to m, the first vehicle speed V is judged1Exactly according to KFront sideCalculating and displaying the vehicle speed and the mileage; when V is1-V2< -m or V1-V2When m is greater, the first vehicle speed V is judged1Inaccurate, correcting the coefficient according to the formula to obtain the corrected coefficient KRear endAccording to KRear endAnd calculating and displaying the vehicle speed and the mileage.
FIG. 3 is a block diagram of an apparatus for determining vehicle speed provided by an exemplary embodiment. As shown in fig. 3, the apparatus 10 for determining a vehicle speed may include:
the first obtaining module 11 is configured to obtain a first vehicle speed during a driving process of the vehicle, where the first vehicle speed is a vehicle speed of the vehicle detected by a vehicle speed sensor.
The second obtaining module 12 is configured to obtain a second vehicle speed during the running of the vehicle, where the second vehicle speed is a vehicle speed of the vehicle detected by a GPS positioning device in the vehicle.
The judging module 13 is configured to judge whether the first vehicle speed is accurate according to the first vehicle speed and the second vehicle speed.
The first determining module 14 is configured to determine a vehicle speed of the vehicle according to both the first vehicle speed and the second vehicle speed if the first vehicle speed is determined to be inaccurate.
Optionally, the apparatus 10 may further comprise a second determining module.
The second determining module is used for determining the first vehicle speed as the vehicle speed of the vehicle if the first vehicle speed is determined to be accurate.
Optionally, the determining module 13 includes a first determining submodule or a second determining submodule.
The first judgment submodule is used for judging that the first vehicle speed is inaccurate if the absolute value of the difference between the first vehicle speed and the second vehicle speed is larger than a preset difference threshold value by the first judgment submodule or the second judgment submodule.
The second judging sub-module is used for judging that the first vehicle speed is inaccurate if the ratio of the first vehicle speed to the second vehicle speed exceeds a preset ratio threshold range.
Optionally, the first determination module 14 includes a modification submodule and a first determination submodule.
And the correction submodule is used for correcting the coefficient according to the second vehicle speed if the first vehicle speed is judged to be inaccurate, wherein the first vehicle speed is the product of the number of pulses acquired by the vehicle speed sensor and the coefficient.
The first determining submodule is used for determining the speed of the vehicle according to the corrected coefficient.
Optionally, the modification submodule is executed by the following formula:
Krear end＝KFront side*(V2/V1)
Wherein, KRear endDenotes the corrected coefficient, KFront sideDenotes the coefficient before correction, V1Indicates a first vehicle speed, V2Indicating a second vehicle speed.
Optionally, the device 10 may further include a vehicle speed output module.
The vehicle speed output module is used for outputting the determined vehicle speed on an instrument panel of the vehicle.
Optionally, the apparatus 10 may further include a mileage output module.
And the mileage output module is used for calculating the mileage driven by the vehicle according to the determined vehicle speed and outputting the calculated mileage on an instrument panel of the vehicle.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 4 is a block diagram illustrating an electronic device 400 according to an example embodiment. As shown in fig. 4, the electronic device 400 may include: a processor 401 and a memory 402. The electronic device 400 may also include one or more of a multimedia component 403, an input/output (I/O) interface 404, and a communications component 405.
The processor 401 is configured to control the overall operation of the electronic device 400 to complete all or part of the steps of the method for determining the vehicle speed. The memory 402 is used to store various types of data to support operation at the electronic device 400, such as instructions for any application or method operating on the electronic device 400 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and so forth. The Memory 402 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 403 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 402 or transmitted through the communication component 405. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 404 provides an interface between the processor 401 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 405 is used for wired or wireless communication between the electronic device 400 and other devices. Wireless communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 405 may therefore include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 400 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described method of determining vehicle speed.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the method of determining vehicle speed described above is also provided. For example, the computer readable storage medium may be the memory 402 described above including program instructions executable by the processor 401 of the electronic device 400 to perform the method of determining vehicle speed described above.
The present disclosure also provides a vehicle comprising a vehicle speed sensor, a GPS positioning device and a control device for performing the steps of the above method provided by the present disclosure.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A method of determining vehicle speed, the method comprising:
acquiring a first vehicle speed in the running process of a vehicle, wherein the first vehicle speed is the vehicle speed of the vehicle detected by a vehicle speed sensor;
acquiring a second vehicle speed in the running process of the vehicle, wherein the second vehicle speed is the vehicle speed of the vehicle detected by a GPS (global positioning system) positioning device in the vehicle;
judging whether the first vehicle speed is accurate or not according to the first vehicle speed and the second vehicle speed;
and if the first vehicle speed is not accurate, determining the vehicle speed of the vehicle according to the first vehicle speed and the second vehicle speed.
2. The method of claim 1, further comprising:
and if the first vehicle speed is determined to be accurate, determining the first vehicle speed as the vehicle speed of the vehicle.
3. The method of claim 1, wherein determining whether the first vehicle speed is accurate based on the first vehicle speed and the second vehicle speed comprises any one of:
if the absolute value of the difference between the first vehicle speed and the second vehicle speed is larger than a preset difference threshold value, judging that the first vehicle speed is inaccurate;
and if the ratio of the first vehicle speed to the second vehicle speed exceeds a preset ratio threshold range, judging that the first vehicle speed is inaccurate.
4. The method of claim 1, wherein determining the vehicle speed of the vehicle based on both the first vehicle speed and the second vehicle speed if the first vehicle speed is determined to be inaccurate comprises:
if the first vehicle speed is not accurate, correcting the coefficient according to the second vehicle speed, wherein the first vehicle speed is the product of the number of pulses acquired by the vehicle speed sensor and the coefficient;
and determining the speed of the vehicle according to the corrected coefficient.
5. The method of claim 4, wherein if it is determined that the first vehicle speed is inaccurate, the step of correcting the coefficient according to the second vehicle speed is performed by the following equation:
Krear end＝KFront side*(V2/V1)
Wherein, KRear endDenotes the corrected coefficient, KFront sideDenotes the coefficient before correction, V1Representing said first vehicle speed, V2Representing the second vehicle speed.
6. The method of claim 1, further comprising:
outputting the determined vehicle speed on an instrument panel of the vehicle;
and/or the presence of a gas in the gas,
calculating a mileage traveled by the vehicle according to the determined vehicle speed, and outputting the calculated mileage on an instrument panel of the vehicle.
7. An apparatus for determining vehicle speed, the apparatus comprising:
the vehicle speed acquisition module is used for acquiring a first vehicle speed in the running process of a vehicle, wherein the first vehicle speed is the vehicle speed of the vehicle detected by a vehicle speed sensor;
the second acquisition module is used for acquiring a second vehicle speed in the running process of the vehicle, wherein the second vehicle speed is the vehicle speed of the vehicle detected by a GPS positioning device in the vehicle;
the judging module is used for judging whether the first vehicle speed is accurate or not according to the first vehicle speed and the second vehicle speed;
the first determining module is used for determining the vehicle speed of the vehicle according to the first vehicle speed and the second vehicle speed if the first vehicle speed is judged to be inaccurate.
8. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
9. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 6.
10. A vehicle comprising a vehicle speed sensor, GPS positioning means and control means for performing the steps of the method of any of claims 1 to 6.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112638738A (en) * | 2020-09-21 | 2021-04-09 | 华为技术有限公司 | Fault diagnosis method and fault diagnosis device for vehicle speed measuring device |
| CN114179869A (en) * | 2021-12-24 | 2022-03-15 | 交控科技股份有限公司 | Train speed measuring method and device and train |
| CN114740225A (en) * | 2022-03-22 | 2022-07-12 | 潍柴动力股份有限公司 | Vehicle speed sensor credibility inspection method and system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006011761A1 (en) * | 2004-07-29 | 2006-02-02 | Lg Electronics Inc. | Self-tuning apparatus of vehicle speed pulse coefficient and method thereof |
| CN1955639A (en) * | 2005-10-24 | 2007-05-02 | 何铁 | Calibration method for vehicle speed measuring instrument |
| CN101949955A (en) * | 2010-08-11 | 2011-01-19 | 北京交通大学 | State self-checking method of combined speed measuring and positioning system for train |
| CN102980589A (en) * | 2012-11-27 | 2013-03-20 | 厦门雅迅网络股份有限公司 | Method and device for automatically computing vehicle pulse factor via GPS (global positioning system) speed |
| CN103029709A (en) * | 2011-09-28 | 2013-04-10 | 通用汽车环球科技运作有限责任公司 | Method for determining the speed of a vehicle and vehicle |
| CN203337157U (en) * | 2013-04-11 | 2013-12-11 | 北京聚利科技股份有限公司 | Log calibration processing device and vehicle |
| CN103994776A (en) * | 2014-05-04 | 2014-08-20 | 广州日滨科技发展有限公司 | Method and device for determining vehicle pulse coefficient based on GNSS satellite positioning data |
| CN104316716A (en) * | 2014-11-20 | 2015-01-28 | 清华大学 | Method for improving vehicle-mounted speed chart through GPS speed information |
| CN104345324A (en) * | 2013-07-24 | 2015-02-11 | 北汽福田汽车股份有限公司 | GPS vehicle positioning method and apparatus, and vehicle |
| CN110231496A (en) * | 2019-06-19 | 2019-09-13 | 浙江吉利控股集团有限公司 | A kind of speed calibrating installation and method |
-
2019
- 2019-12-02 CN CN201911215072.7A patent/CN111089984A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006011761A1 (en) * | 2004-07-29 | 2006-02-02 | Lg Electronics Inc. | Self-tuning apparatus of vehicle speed pulse coefficient and method thereof |
| CN1955639A (en) * | 2005-10-24 | 2007-05-02 | 何铁 | Calibration method for vehicle speed measuring instrument |
| CN101949955A (en) * | 2010-08-11 | 2011-01-19 | 北京交通大学 | State self-checking method of combined speed measuring and positioning system for train |
| CN103029709A (en) * | 2011-09-28 | 2013-04-10 | 通用汽车环球科技运作有限责任公司 | Method for determining the speed of a vehicle and vehicle |
| CN102980589A (en) * | 2012-11-27 | 2013-03-20 | 厦门雅迅网络股份有限公司 | Method and device for automatically computing vehicle pulse factor via GPS (global positioning system) speed |
| CN203337157U (en) * | 2013-04-11 | 2013-12-11 | 北京聚利科技股份有限公司 | Log calibration processing device and vehicle |
| CN104345324A (en) * | 2013-07-24 | 2015-02-11 | 北汽福田汽车股份有限公司 | GPS vehicle positioning method and apparatus, and vehicle |
| CN103994776A (en) * | 2014-05-04 | 2014-08-20 | 广州日滨科技发展有限公司 | Method and device for determining vehicle pulse coefficient based on GNSS satellite positioning data |
| CN104316716A (en) * | 2014-11-20 | 2015-01-28 | 清华大学 | Method for improving vehicle-mounted speed chart through GPS speed information |
| CN110231496A (en) * | 2019-06-19 | 2019-09-13 | 浙江吉利控股集团有限公司 | A kind of speed calibrating installation and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112638738A (en) * | 2020-09-21 | 2021-04-09 | 华为技术有限公司 | Fault diagnosis method and fault diagnosis device for vehicle speed measuring device |
| WO2022056899A1 (en) * | 2020-09-21 | 2022-03-24 | 华为技术有限公司 | Fault diagnosis method and apparatus for vehicle speed measuring apparatus |
| CN114179869A (en) * | 2021-12-24 | 2022-03-15 | 交控科技股份有限公司 | Train speed measuring method and device and train |
| CN114740225A (en) * | 2022-03-22 | 2022-07-12 | 潍柴动力股份有限公司 | Vehicle speed sensor credibility inspection method and system |
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