CN114283365A - Fishhook test tire liftoff verification method and equipment - Google Patents
Fishhook test tire liftoff verification method and equipment Download PDFInfo
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Abstract
The invention aims to provide a fishhook test tire off-ground verification method and equipment, which comprises the steps that anti-rolling supports are respectively arranged at the head and the tail of a vehicle, moving cameras are respectively arranged at two ends of a long rod at the tail of the vehicle, a lens of each moving camera is aligned to two wheels on the corresponding side face of the vehicle, video images of the wheels on two sides of the vehicle and the ground are collected through the moving cameras during fishhook test, and whether the fishhook test is successful or not is judged based on the collected video images of the wheels on two sides of the vehicle and the ground. The invention can not only provide effective and reliable basis for success of fishhook test, but also ensure the safety of equipment and personnel to the maximum extent.
Description
Technical Field
The invention relates to a method and equipment for verifying that a fish hook test tire is lifted off the ground.
Background
Nowadays, SUV off-road vehicles are more and more favored by the market, the anti-rollover performance of the SUV vehicles is an important safety evaluation performance, and a fishhook test (fishhook) is an objective test for verifying the performance. The fishhook test can test whether the vehicle is in danger of overturning under the extreme operation condition so as to ensure that the sold vehicle cannot be in accident of overturning in emergency avoidance.
The current fishhook test scheme is mainly to judge whether a tire lifts off the ground in the test process through a vehicle height sensor and an artificial visual identification mode.
Firstly, in a mode of installing a height sensor on a vehicle body, the height of a tire from the ground is confirmed in advance and recorded through a series of measurement work before a test is needed; and analyzing the data after the test is finished to judge the current test result. This method also requires a lot of time for the preliminary preparation work, and also requires a height sensor to be mounted on the vehicle, and the wiring is complicated. Because the test working condition is worse, the motion amplitude of the vehicle body is very large, and the additionally arranged height sensor is easy to damage the test equipment.
Secondly, through the mode of artifical visual identification, need arrange personnel in addition in the place, have very big hidden danger in the aspect of the security.
Disclosure of Invention
The invention provides a method and equipment for verifying that a fish hook test tire lifts off the ground.
The invention provides a fishhook test tire liftoff verification method, which comprises the following steps:
anti-rollover brackets are respectively arranged at the head and the tail of the vehicle, the anti-rollover brackets are long rods which are longer than the width of the vehicle, and two ends of each long rod extend out of two sides of the head or the tail of the vehicle;
the two ends of a long rod at the tail of the vehicle are respectively provided with a moving camera, and the lens of each moving camera is aligned to two wheels on the corresponding side surface of the vehicle;
during a fishhook test, video images of wheels on two sides of a vehicle and the ground are collected through the motion camera;
and judging whether the fishhook test is successful or not based on the collected video images of the wheels on the two sides of the vehicle and the ground.
Further, in the above method, during the fishhook test, the capturing video images of the wheels on both sides of the vehicle and the ground by the motion camera includes:
the vehicle is controlled to make a 720 °/s rotation speed starting from 56kph, the vehicle is controlled to make a 270 ° left jerk, then at the same rotation speed, the vehicle is controlled to make a 540 ° right jerk until the vehicle reaches 80kph, during which video images of the wheels on both sides of the vehicle and the ground are captured by the motion camera.
Further, in the above method, during the fishhook test, the capturing video images of the wheels on both sides of the vehicle and the ground by the motion camera includes:
during a fishhook test, the motion camera acquires video images of wheels on two sides of a vehicle and the ground;
the motion camera sends the video image to a display of the vehicle via bluetooth.
Further, in the above method, the lens of each motion camera is directed to two wheels on the corresponding side of the vehicle,
and controlling the vertical distance between the lens of the motion camera and the corresponding side surface of the vehicle within the range of 0.6-0.9 times of the width of the vehicle.
Further, in the above method, determining whether the fishhook test is successful based on the collected video images of the wheels on both sides of the vehicle and the ground includes:
analyzing the collected video images of the wheels on the two sides of the vehicle and the ground to judge whether the wheels on the two sides of the vehicle are off the ground or not,
if the wheel lifts off the ground in the fishhook test process, the fishhook test fails;
if the wheel is not lifted off the ground all the time in the fishhook test process, the fishhook test is successful.
Further, in the above method, analyzing the collected video images of the wheels on the two sides of the vehicle and the ground, and determining whether the wheels on the two sides of the vehicle are off the ground includes:
analyzing the collected video images of the wheels on the two sides of the vehicle and the ground, judging whether the wheels on the two sides of the vehicle are away from the ground by more than a preset distance,
if the wheel liftoff in the fishhook experimentation, then the fishhook test fails, including:
if the wheel exceeds a preset distance from the ground in the fishhook test process, the fishhook test fails;
if the wheel does not lift off the ground all the time in the fishhook test process, the fishhook test is successful, and the method comprises the following steps:
if the wheel does not exceed the preset distance all the time from the ground in the fishhook test process, the fishhook test is successful.
Further, in the above method, if the wheel exceeds a preset distance from the ground in the fishhook test process, the fishhook test fails, including:
if the wheel exceeds a preset distance from the ground in the fishhook test process, acquiring corresponding vehicle speed and steering wheel corner information when the wheel exceeds the preset distance from the ground, and if the acquired corresponding vehicle speed is within a preset vehicle speed range and the acquired corresponding steering wheel corner information is within a preset steering wheel corner range, failing the fishhook test;
if the wheel lift-off does not exceed the preset distance all the time, the corresponding vehicle speed and steering wheel angle information when the wheel lift-off does not exceed the preset distance are obtained, and if the obtained corresponding vehicle speed is within the preset vehicle speed range and the obtained corresponding steering wheel angle information is within the preset steering wheel angle range, the fishhook test is successful.
Further, in the above method, the predetermined distance is 2 inches.
According to another aspect of the present invention, a fishhook test tire lift-off verification apparatus includes:
the anti-rollover support is arranged at the head and the tail of the vehicle, the anti-rollover support is long rods which are longer than the width of the vehicle, and two ends of each long rod extend out of two sides of the head or the tail of the vehicle;
the moving cameras are respectively arranged at two ends of a long rod at the tail of the vehicle, and a lens of each moving camera is aligned with two wheels on the corresponding side of the vehicle; the motion camera is used for acquiring video images of wheels on two sides of the vehicle and the ground during a fishhook test;
and the analysis module is used for judging whether the fishhook test is successful or not based on the collected video images of the wheels on the two sides of the vehicle and the ground.
Among the above-mentioned fishhook test tire liftoff verification equipment, still include:
and the control module is used for controlling the vehicle to make a steering of 270 DEG for leftward jerking at the speed of 720 DEG/s from 56kph, and then controlling the vehicle to make a steering of 540 DEG for rightward jerking at the same speed until the speed of the vehicle reaches 80kph, and during the period, the motion camera is controlled to acquire video images of wheels on two sides of the vehicle and the ground.
In the above fishhook test tire liftoff verification device, the motion camera is configured to send the video image to a display of a vehicle through bluetooth.
In the above fishhook test tire liftoff verification device, the vertical distance between the lens of the motion camera and the corresponding side face of the vehicle is within the range of 0.6-0.9 times of the width of the vehicle.
In the above apparatus for verifying that the tire of the fishhook is lifted off the ground, the analysis module is configured to analyze the collected video images of the wheels on the two sides of the vehicle and the ground, and determine whether the wheels on the two sides of the vehicle are lifted off the ground or not, and if the wheels are lifted off the ground in the fishhook test process, determine that the fishhook test fails; and if the wheel is not lifted off the ground all the time in the fishhook test process, judging that the fishhook test is successful.
In the above apparatus for verifying that the tire of the fishhook is lifted off the ground, the analysis module is configured to analyze the collected video images of the wheels on the two sides of the vehicle and the ground, determine whether the wheels on the two sides of the vehicle are lifted off the ground by more than a preset distance, and if the wheels are lifted off the ground by more than the preset distance in the fishhook test process, determine that the fishhook test fails; and if the wheel does not exceed the preset distance all the time from the ground in the fishhook test process, judging that the fishhook test is successful.
In the above apparatus for verifying that a tire of a fishhook is lifted off the ground, the analysis module is configured to obtain a corresponding vehicle speed and steering wheel angle information when a wheel is lifted off the ground by a preset distance in a fishhook test process, and if the obtained corresponding vehicle speed is within a preset vehicle speed range and the obtained corresponding steering wheel angle information is within a preset steering wheel angle range, the fishhook test fails; if the wheel lift-off does not exceed the preset distance all the time, the corresponding vehicle speed and steering wheel angle information when the wheel lift-off does not exceed the preset distance are obtained, and if the obtained corresponding vehicle speed is within the preset vehicle speed range and the obtained corresponding steering wheel angle information is within the preset steering wheel angle range, the fishhook test is judged to be successful.
In the above fishhook test tire liftoff verification device, the preset distance is 2 inches.
According to another aspect of the present invention, there is also provided a computer readable medium having computer readable instructions stored thereon, the computer readable instructions being executable by a processor to implement the method of any one of the above.
According to another aspect of the present invention, there is also provided an apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform any of the methods described above.
The judgment mode of the tire lift from the ground utilizes the advantages of high convenience, reliability and picture definition of the motion cameras, the two motion cameras are fixed at the tail ends of the external anti-rolling frames at the two sides through the special supports, and the lenses are aligned to the tires at the two sides, so that the real-time monitoring effect is achieved, and the success of a fishhook test can be more intuitively confirmed. The invention simplifies the preparation work before the test, replaces the manual visual observation and reduces the test risk coefficient. The invention can not only provide effective and reliable basis for success of fishhook test, but also ensure the safety of equipment and personnel to the maximum extent.
Drawings
Fig. 1 is a schematic installation diagram of a fishhook test tire lift-off verification device according to an embodiment of the invention;
fig. 2 is a vehicle control diagram of a fishhook test according to an embodiment of the invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
In a typical configuration of the present application, the terminal, the device serving the network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include non-transitory computer readable media (transient media), such as modulated data signals and carrier waves.
The invention provides a method for verifying that a fish hook test tire lifts off the ground, which comprises the following steps:
step S1, as shown in fig. 1, mounting anti-rollover brackets on the head and tail of the vehicle, wherein the anti-rollover brackets are long rods 1 longer than the width of the vehicle, and two ends of each long rod 1 extend out of two sides of the head or tail of the vehicle;
step S2, respectively arranging moving cameras 2 at two ends of a long rod at the tail of a vehicle, and aligning the lens of each moving camera to two wheels 3 on the corresponding side of the vehicle;
step S3, acquiring video images of wheels on two sides of the vehicle and the ground through the motion camera during a fishhook test;
and step S4, judging whether the fishhook test is successful or not based on the collected video images of the wheels on the two sides of the vehicle and the ground.
Here, the motion camera has noise-resistant and shake-proof characteristics, and can provide stable and high-quality video data even under severe conditions. The invention uses a more compact professional motion camera for short-distance recording to replace a manual visual inspection mode. The invention also utilizes a special fixing bracket to fix the motion camera at the tail end of the external anti-rolling bracket. The invention realizes the real-time image transmission by utilizing the portable professional motion camera, and can observe whether the tire is off the ground or not in real time based on the image, namely whether the tire has a side turning trend or not, thereby correctly judging whether the test is successful or not in the first time.
The judgment mode of the tire lift from the ground utilizes the advantages of high convenience, reliability and picture definition of the motion cameras, the two motion cameras are fixed at the tail ends of the external anti-rolling frames at the two sides through the special supports, and the lenses are aligned to the tires at the two sides, so that the real-time monitoring effect is achieved, and the success of a fishhook test can be more intuitively confirmed. The invention simplifies the preparation work before the test, replaces the manual visual observation and reduces the test risk coefficient. The invention can not only provide effective and reliable basis for success of fishhook test, but also ensure the safety of equipment and personnel to the maximum extent.
As shown in fig. 2, in an embodiment of the method for verifying that a fishhook test tire is lifted off the ground, step S3 is to capture video images of wheels and the ground on both sides of a vehicle through the motion camera during the fishhook test, and includes:
the vehicle is controlled to make a 720 °/s turn starting from 56kph, the vehicle is controlled to slam 270 ° to the left, and then the vehicle is controlled to slam 540 ° to the right at the same speed until the vehicle reaches 80kph, during which video images of the wheels on both sides of the vehicle and the ground are captured by the motion camera.
Here, this embodiment can guarantee that the motion camera gathers the accurate video image that is used for judging whether the fishhook experiment is successful the wheel of the both sides of vehicle and ground through the speed and the turn to of accurate control vehicle.
In an embodiment of the method for verifying that a fishhook test tire is lifted off the ground, in step S3, during the fishhook test, the method for capturing video images of wheels and the ground on both sides of a vehicle by using the motion camera includes:
step S31, when the fishhook is tested, the motion camera collects video images of wheels on two sides of the vehicle and the ground;
step S32, the motion camera sends the video image to the display of the vehicle via bluetooth.
The motion camera transmits the video image to a display in the vehicle in a Bluetooth signal mode, and real-time monitoring is achieved.
In an embodiment of the method for verifying that a fishhook test tire lifts off the ground, step S2, the lens of each motion camera is aligned with two wheels on the corresponding side of the vehicle,
and controlling the vertical distance between the lens of the motion camera and the corresponding side surface of the vehicle within the range of 0.6-0.9 times of the width of the vehicle.
Here, fix the motion camera respectively at the back support both ends of preventing rolling, the motion camera is specifically at the concrete position at the back support both ends of preventing rolling, can turn to the input direction and decide according to the steering wheel, and in the fishhook test process, can survey the state image of two-wheeled in unilateral through the motion camera real-time acquisition, and will on the display is transmitted to the car to record simultaneously, convenient further verification.
In order to clearly acquire images of two wheels on the corresponding side of the vehicle through the lens, the vertical distance between the lens of the moving camera and the corresponding side of the vehicle needs to be controlled within a proper range, and the vertical distance between the lens of the moving camera and the corresponding side of the vehicle can be controlled within a range of 0.6-0.9 times of the width of the vehicle, so as to ensure that the lens acquires a sufficiently clear image of the vehicle, for example, the vertical distance can be 0.715 times of the width of the vehicle.
In an embodiment of the method for verifying that a tire of a fishhook is lifted off the ground, step S4, based on the collected video images of the wheels and the ground on both sides of the vehicle, determines whether a fishhook test is successful, including:
step S41, analyzing the collected video images of the wheels on the two sides of the vehicle and the ground, judging whether the wheels on the two sides of the vehicle are off the ground or not,
step S42, if the wheel lifts off the ground in the fishhook test process, the fishhook test fails;
and step S43, if the wheel is not lifted off the ground all the time in the fishhook test process, the fishhook test is successful.
Here, 90% of rollover accidents occur when the tires of the vehicle are separated from the road surface, so that the tires of the vehicle are kept in contact with the road surface, which is the key for ensuring the driving safety of the vehicle.
In an embodiment of the method for verifying that a fishhook test tire is lifted off the ground, step S41, analyzing the collected video images of the wheels on the two sides of the vehicle and the ground, and determining whether the wheels on the two sides of the vehicle are lifted off the ground includes:
step S411, analyzing the collected video images of the wheels on the two sides of the vehicle and the ground, judging whether the wheels on the two sides of the vehicle are away from the ground by more than a preset distance,
step S42, if the wheel lifts off during the fishhook test, the fishhook test fails, including:
step S421, if the wheel exceeds a preset distance from the ground in the fishhook test process, the fishhook test fails;
step S43, if the wheel is not lifted off the ground all the time in the fishhook test process, the fishhook test is successful, including:
and step S431, if the distance from the ground of the wheel in the fishhook test process does not exceed the preset distance all the time, the fishhook test is successful.
Here, this embodiment can be more accurate the judgement fishhook test fail or succeed through judging whether the wheel of the both sides of vehicle is liftoff more than preset distance.
In an embodiment of the method for verifying that a tire of a fishhook is lifted off the ground, if the wheel exceeds a preset distance from the ground in the fishhook test process, the step S421 fails the fishhook test, which includes:
if the wheel exceeds a preset distance from the ground in the fishhook test process, acquiring corresponding vehicle speed and steering wheel corner information when the wheel exceeds the preset distance from the ground, and if the acquired corresponding vehicle speed is within a preset vehicle speed range and the acquired corresponding steering wheel corner information is within a preset steering wheel corner range, failing the fishhook test;
step S431, if the wheel does not exceed the preset distance all the time from the ground in the fishhook test process, the fishhook test is successful, including:
if the wheel lift-off does not exceed the preset distance all the time, the corresponding vehicle speed and steering wheel angle information when the wheel lift-off does not exceed the preset distance are obtained, and if the obtained corresponding vehicle speed is within the preset vehicle speed range and the obtained corresponding steering wheel angle information is within the preset steering wheel angle range, the fishhook test is successful.
Here, when the tire lift-off is detected, the vehicle speed and the steering wheel angle information at that time can be automatically recorded.
The fishhook test needs to be carried out within a preset vehicle speed range and a preset steering wheel angle range, and if the distance between the wheels and the ground exceeds a preset distance and the vehicle speed and the steering wheel angle at the moment of the vehicle are within the preset vehicle speed range and the preset steering wheel angle range, the fishhook test fails; if the distance between the wheels and the ground does not exceed the preset distance, and the vehicle speed and the steering wheel angle are within the preset vehicle speed range and the preset steering wheel angle range at the moment, the fishhook test is successful.
In the embodiment, whether the distance from the ground of the wheel to the ground is preset or not and whether the corresponding vehicle speed is within the preset vehicle speed range or not are combined, and whether the acquired corresponding steering wheel corner information is within the preset steering wheel corner range or not is combined, so that the success or failure of the fishhook experiment can be judged more accurately.
In an embodiment of the ground clearance verification method for the fishhook test tire, the preset distance is 2 inches.
Here, during the fishhook test, it is possible to observe whether or not the wheels are off the ground, and if the wheels on the turning direction side of the vehicle (both inner wheels) are 2 inches (5.08 cm) or more away from the ground, it is possible to recognize that the vehicle has a possibility of rollover.
According to another aspect of the present invention, a fishhook test tire lift-off verification apparatus includes:
the anti-rollover support is arranged at the head and the tail of the vehicle, the anti-rollover support is long rods which are longer than the width of the vehicle, and two ends of each long rod extend out of two sides of the head or the tail of the vehicle;
the moving cameras are respectively arranged at two ends of a long rod at the tail of the vehicle, and a lens of each moving camera is aligned with two wheels on the corresponding side of the vehicle; the motion camera is used for acquiring video images of wheels on two sides of the vehicle and the ground during a fishhook test;
and the analysis module is used for judging whether the fishhook test is successful or not based on the collected video images of the wheels on the two sides of the vehicle and the ground.
Among the above-mentioned fishhook test tire liftoff verification equipment, still include:
and the control module is used for controlling the vehicle to make a steering of 270 DEG for leftward jerking at the speed of 720 DEG/s from 56kph, and then controlling the vehicle to make a steering of 540 DEG for rightward jerking at the same speed until the speed of the vehicle reaches 80kph, and during the period, the motion camera is controlled to acquire video images of wheels on two sides of the vehicle and the ground.
In the above fishhook test tire liftoff verification device, the motion camera is configured to send the video image to a display of a vehicle through bluetooth.
In the above fishhook test tire liftoff verification device, the vertical distance between the lens of the motion camera and the corresponding side face of the vehicle is within the range of 0.6-0.9 times of the width of the vehicle.
In the above apparatus for verifying that the tire of the fishhook is lifted off the ground, the analysis module is configured to analyze the collected video images of the wheels on the two sides of the vehicle and the ground, and determine whether the wheels on the two sides of the vehicle are lifted off the ground or not, and if the wheels are lifted off the ground in the fishhook test process, determine that the fishhook test fails; and if the wheel is not lifted off the ground all the time in the fishhook test process, judging that the fishhook test is successful.
In the above apparatus for verifying that the tire of the fishhook is lifted off the ground, the analysis module is configured to analyze the collected video images of the wheels on the two sides of the vehicle and the ground, determine whether the wheels on the two sides of the vehicle are lifted off the ground by more than a preset distance, and if the wheels are lifted off the ground by more than the preset distance in the fishhook test process, determine that the fishhook test fails; and if the wheel does not exceed the preset distance all the time from the ground in the fishhook test process, judging that the fishhook test is successful.
In the above apparatus for verifying that a tire of a fishhook is lifted off the ground, the analysis module is configured to obtain a corresponding vehicle speed and steering wheel angle information when a wheel is lifted off the ground by a preset distance in a fishhook test process, and if the obtained corresponding vehicle speed is within a preset vehicle speed range and the obtained corresponding steering wheel angle information is within a preset steering wheel angle range, the fishhook test fails; if the wheel lift-off does not exceed the preset distance all the time, the corresponding vehicle speed and steering wheel angle information when the wheel lift-off does not exceed the preset distance are obtained, and if the obtained corresponding vehicle speed is within the preset vehicle speed range and the obtained corresponding steering wheel angle information is within the preset steering wheel angle range, the fishhook test is judged to be successful.
In the above fishhook test tire liftoff verification device, the preset distance is 2 inches.
According to another aspect of the present invention, there is also provided a computer readable medium having computer readable instructions stored thereon, the computer readable instructions being executable by a processor to implement the method of any one of the above.
According to another aspect of the present invention, there is also provided an apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform any of the methods described above.
The details of each device embodiment of the present invention may specifically refer to the corresponding parts of each method embodiment, and are not described herein again.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
It should be noted that the present invention may be implemented in software and/or in a combination of software and hardware, for example, as an Application Specific Integrated Circuit (ASIC), a general purpose computer or any other similar hardware device. In one embodiment, the software program of the present invention may be executed by a processor to implement the steps or functions described above. Also, the software programs (including associated data structures) of the present invention can be stored in a computer readable recording medium, such as RAM memory, magnetic or optical drive or diskette and the like. Further, some of the steps or functions of the present invention may be implemented in hardware, for example, as circuitry that cooperates with the processor to perform various steps or functions.
In addition, some of the present invention can be applied as a computer program product, such as computer program instructions, which when executed by a computer, can invoke or provide the method and/or technical solution according to the present invention through the operation of the computer. Program instructions which invoke the methods of the present invention may be stored on a fixed or removable recording medium and/or transmitted via a data stream on a broadcast or other signal-bearing medium and/or stored within a working memory of a computer device operating in accordance with the program instructions. An embodiment according to the invention herein comprises an apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform a method and/or solution according to embodiments of the invention as described above.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the apparatus claims may also be implemented by one unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Claims (18)
1. A fishhook test tire liftoff verification method is characterized by comprising the following steps:
anti-rollover brackets are respectively arranged at the head and the tail of the vehicle, the anti-rollover brackets are long rods which are longer than the width of the vehicle, and two ends of each long rod extend out of two sides of the head or the tail of the vehicle;
the two ends of a long rod at the tail of the vehicle are respectively provided with a moving camera, and the lens of each moving camera is aligned to two wheels on the corresponding side surface of the vehicle;
during a fishhook test, video images of wheels on two sides of a vehicle and the ground are collected through the motion camera;
and judging whether the fishhook test is successful or not based on the collected video images of the wheels on the two sides of the vehicle and the ground.
2. The fishhook test tire off-ground verification method according to claim 1, wherein in the fishhook test, video images of wheels and the ground on both sides of the vehicle are captured by the motion camera, and the method comprises the following steps:
the vehicle is controlled to make a 720 °/s rotation speed starting from 56kph, the vehicle is controlled to make a 270 ° left jerk, then at the same rotation speed, the vehicle is controlled to make a 540 ° right jerk until the vehicle reaches 80kph, during which video images of the wheels on both sides of the vehicle and the ground are captured by the motion camera.
3. The fishhook test tire off-ground verification method according to claim 1, wherein in the fishhook test, video images of wheels and the ground on both sides of the vehicle are captured by the motion camera, and the method comprises the following steps:
during a fishhook test, the motion camera acquires video images of wheels on two sides of a vehicle and the ground;
the motion camera sends the video image to a display of the vehicle via bluetooth.
4. The fishhook test tire off-ground verification method according to claim 1, wherein the lens of each motion camera is directed into two wheels on the corresponding side of the vehicle,
and controlling the vertical distance between the lens of the motion camera and the corresponding side surface of the vehicle within the range of 0.6-0.9 times of the width of the vehicle.
5. The fishhook test tire off-ground verification method of claim 1, wherein determining whether the fishhook test is successful based on the captured video images of the wheels and the ground on both sides of the vehicle comprises:
analyzing the collected video images of the wheels on the two sides of the vehicle and the ground to judge whether the wheels on the two sides of the vehicle are off the ground or not,
if the wheel lifts off the ground in the fishhook test process, the fishhook test fails;
if the wheel is not lifted off the ground all the time in the fishhook test process, the fishhook test is successful.
6. The fishhook test tire lift-off verification method according to claim 5, wherein the step of analyzing the collected video images of the wheels on the two sides of the vehicle and the ground to judge whether the wheels on the two sides of the vehicle lift off the ground comprises the following steps:
analyzing the collected video images of the wheels on the two sides of the vehicle and the ground, judging whether the wheels on the two sides of the vehicle are away from the ground by more than a preset distance,
if the wheel liftoff in the fishhook experimentation, then the fishhook test fails, including:
if the wheel exceeds a preset distance from the ground in the fishhook test process, the fishhook test fails;
if the wheel does not lift off the ground all the time in the fishhook test process, the fishhook test is successful, and the method comprises the following steps:
if the wheel does not exceed the preset distance all the time from the ground in the fishhook test process, the fishhook test is successful.
7. The fishhook test tire lift-off verification method of claim 6 wherein if the wheel exceeds a preset distance from the ground during the fishhook test, the fishhook test fails, comprising:
if the wheel exceeds a preset distance from the ground in the fishhook test process, acquiring corresponding vehicle speed and steering wheel corner information when the wheel exceeds the preset distance from the ground, and if the acquired corresponding vehicle speed is within a preset vehicle speed range and the acquired corresponding steering wheel corner information is within a preset steering wheel corner range, failing the fishhook test;
if the wheel lift-off does not exceed the preset distance all the time, the corresponding vehicle speed and steering wheel angle information when the wheel lift-off does not exceed the preset distance are obtained, and if the obtained corresponding vehicle speed is within the preset vehicle speed range and the obtained corresponding steering wheel angle information is within the preset steering wheel angle range, the fishhook test is successful.
8. The fishhook test tire off-ground verification method of claim 6 wherein the predetermined distance is 2 inches.
9. The utility model provides a fishhook test tire liftoff verification equipment which characterized in that includes:
the anti-rollover support is arranged at the head and the tail of the vehicle, the anti-rollover support is long rods which are longer than the width of the vehicle, and two ends of each long rod extend out of two sides of the head or the tail of the vehicle;
the moving cameras are respectively arranged at two ends of a long rod at the tail of the vehicle, and a lens of each moving camera is aligned with two wheels on the corresponding side of the vehicle; the motion camera is used for acquiring video images of wheels on two sides of the vehicle and the ground during a fishhook test;
and the analysis module is used for judging whether the fishhook test is successful or not based on the collected video images of the wheels on the two sides of the vehicle and the ground.
10. The apparatus for verifying that a fishhook test tire lifts off the ground according to claim 9, further comprising:
and the control module is used for controlling the vehicle to make a steering of 270 DEG for leftward jerking at the speed of 720 DEG/s from 56kph, and then controlling the vehicle to make a steering of 540 DEG for rightward jerking at the same speed until the speed of the vehicle reaches 80kph, and during the period, the motion camera is controlled to acquire video images of wheels on two sides of the vehicle and the ground.
11. The apparatus for verifying that a fishhook test tire is off the ground as claimed in claim 9, wherein the motion camera is configured to transmit the video image to a display of a vehicle via bluetooth.
12. The apparatus for verifying that a fishhook test tire is off the ground according to claim 9, wherein the vertical distance between the lens of the motion camera and the corresponding side of the vehicle is in the range of 0.6 to 0.9 times the width of the vehicle.
13. The apparatus for verifying the off-ground of a fish hook test tire according to claim 9, wherein the analysis module is configured to analyze the collected video images of the wheels on the two sides of the vehicle and the ground to determine whether the wheels on the two sides of the vehicle are off-ground, and if the wheels are off-ground in the fish hook test process, determine that the fish hook test fails; and if the wheel is not lifted off the ground all the time in the fishhook test process, judging that the fishhook test is successful.
14. The apparatus for verifying that a tire of a fish hook is lifted off the ground according to claim 13, wherein the analysis module is configured to analyze the collected video images of the wheels on the two sides of the vehicle and the ground to determine whether the wheels on the two sides of the vehicle are lifted off the ground by more than a preset distance, and if the wheels are lifted off the ground by more than the preset distance in the fish hook test process, determine that the fish hook test fails; and if the wheel does not exceed the preset distance all the time from the ground in the fishhook test process, judging that the fishhook test is successful.
15. The apparatus for verifying that a tire of a fishhook is lifted off the ground according to claim 14, wherein the analysis module is configured to obtain corresponding vehicle speed and steering wheel angle information when a wheel is lifted off the ground by more than a preset distance in the fishhook test process, and if the obtained corresponding vehicle speed is within a preset vehicle speed range and the obtained corresponding steering wheel angle information is within a preset steering wheel angle range, the fishhook test fails; if the wheel lift-off does not exceed the preset distance all the time, the corresponding vehicle speed and steering wheel angle information when the wheel lift-off does not exceed the preset distance are obtained, and if the obtained corresponding vehicle speed is within the preset vehicle speed range and the obtained corresponding steering wheel angle information is within the preset steering wheel angle range, the fishhook test is judged to be successful.
16. The apparatus for verifying that a fishhook test tire is off the ground as claimed in claim 14, wherein the predetermined distance is 2 inches.
17. A computer readable medium having computer readable instructions stored thereon which are executable by a processor to implement the method of any one of claims 1 to 8.
18. An apparatus for information processing at a network device, the apparatus comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein the computer program instructions, when executed by the processor, trigger the apparatus to perform the method of any one of claims 1 to 8.
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