CN110517522B - Vehicle speed limiting system and method for remote control - Google Patents
Vehicle speed limiting system and method for remote control Download PDFInfo
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- CN110517522B CN110517522B CN201910943259.2A CN201910943259A CN110517522B CN 110517522 B CN110517522 B CN 110517522B CN 201910943259 A CN201910943259 A CN 201910943259A CN 110517522 B CN110517522 B CN 110517522B
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0212—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory
- G05D1/0214—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory in accordance with safety or protection criteria, e.g. avoiding hazardous areas
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0212—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory
- G05D1/0223—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory involving speed control of the vehicle
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
- G05D1/0238—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using obstacle or wall sensors
- G05D1/024—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using obstacle or wall sensors in combination with a laser
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0276—Control of position or course in two dimensions specially adapted to land vehicles using signals provided by a source external to the vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
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Abstract
The invention relates to the technical field of auxiliary driving of vehicles, in particular to a vehicle speed limiting system and a method for remote control, wherein the system comprises the following components: the speed judgment subsystem is used for acquiring the running speed and the speed limit requirement of the current road section in real time and generating an overspeed signal; the overspeed recording subsystem is used for acquiring overspeed environment information during overspeed when the vehicle is overspeed and extracting overspeed environment characteristics according to the overspeed environment information; and the speed pre-judging subsystem is used for acquiring the environmental characteristics in real time, matching the environmental characteristics with the preset overspeed environmental characteristics, acquiring the speed limit requirement when the environmental matching value is greater than the preset value, and generating speed control information according to the speed limit requirement. By adopting the scheme, whether the overspeed behavior of the driver is easy to occur under the current condition can be judged according to the historical overspeed record of the driver, and when the overspeed behavior is easy to occur, the driving speed of the vehicle is controlled according to the speed limit requirement of the current road section, so that the overspeed behavior is avoided.
Description
Technical Field
The invention relates to the technical field of auxiliary driving of vehicles, in particular to a vehicle speed limiting system and method for remote control.
Background
The highway plays an important role in a modern transportation system by the characteristics and advantages of rapidness, safety, comfort and the like, promotes the connection among various cities through the highway, drives the development of economy along the line and effectively plays the social benefit of the highway. However, with the increase of the number of family cars, traffic congestion occurs sometimes under both road traffic conditions and days. Under the condition, the overspeed behavior of the driver easily causes traffic accidents, so the driving behavior of the driver needs to be monitored, the overspeed behavior is avoided, and the driving safety of the vehicle is guaranteed.
In the prior art, a speed limiting system is arranged on a vehicle, and the running speed of the vehicle is controlled by the speed limiting system, so that the following two defects exist: firstly, the speed limited by the speed limiting system is the same, and the driving speed cannot be increased under the condition of less people and less vehicles, so that a driver needs to spend more time on the way; and secondly, the speed limit information of the current road section needs to be continuously acquired if the speed limit system is adjusted according to the speed limit information, certain requirements are placed on the data transmission speed and the signal intensity, and if the speed limit system is not adjusted according to the speed limit information, overspeed behaviors and the situation that the speed does not reach the standard easily occur in the driving process, so that the traffic order is influenced.
Therefore, there is a need for a vehicle speed limiting system that can predict the driving of the driver and effectively control the driving speed of the driver.
Disclosure of Invention
The invention aims to provide a vehicle speed limiting system and method for remote control, which can judge whether a driver is easy to overspeed according to the historical overspeed record of the driver under the current condition and control the running speed of a vehicle according to the speed limiting requirement of a current road section when the driver is easy to overspeed.
The basic scheme provided by the invention is as follows: a vehicle speed limit system for remote control, comprising:
and the speed pre-judging subsystem is used for acquiring the environmental characteristics in real time, matching the environmental characteristics with the preset overspeed environmental characteristics, acquiring the speed limit requirement of the current road section when the environmental matching value is greater than the preset value, and generating speed control information according to the speed limit requirement.
The basic scheme has the following working principle and beneficial effects: the environmental characteristics are acquired under the current driving condition, and the overspeed environmental characteristics are acquired under the historical overspeed condition. Since the driving habits of people do not change in a short period of time, the driver can adopt the same driving mode under specific conditions, for example, the driving speed can be increased on a section with few people, few vehicles and no monitoring, and overspeed behaviors can occur. Therefore, the environment matching value is generated by matching the environment characteristic and the overspeed environment characteristic, when the environment matching value is larger than the preset value, the current driving environment is similar to the historical overspeed environment, and at the moment, the overspeed behavior is easy to occur to the driver.
In order to avoid the occurrence of overspeed behaviors and guarantee the safety of a driver, the speed limit requirement of the current driving road section of the driver is obtained, speed control information is generated according to the speed limit requirement to control the driving speed of a vehicle, the speed control information can set the speed limit requirement to be the highest driving speed through an intelligent system of the vehicle, so that the driving speed of the driven vehicle is controlled not to exceed the highest driving speed, and the overspeed behaviors are avoided. The speed control information can also set the optimal running speed according to the speed limit requirement so as to control the driving vehicle to run according to the optimal running speed, thereby avoiding overspeed behavior and improving traffic efficiency while ensuring traffic safety.
Further, still include:
and the speed judgment subsystem is used for acquiring the running speed and the speed limit requirement of the current road section in real time and generating an overspeed signal according to the running speed and the speed limit requirement.
Has the advantages that: the speed judgment subsystem acquires the running speed of the vehicle and the speed limit requirement of the current road section in real time, so that whether the running speed of the vehicle exceeds the speed is judged, an overspeed signal is generated when the vehicle exceeds the speed, a driver can be reminded of paying attention to the running speed through the overspeed signal, and the overspeed signal can also be used as a starting signal for subsequent speed limit control of the vehicle.
Further, still include:
and the overspeed recording subsystem is used for acquiring overspeed environment information during overspeed when the vehicle is overspeed, and extracting overspeed environment characteristics according to the overspeed environment information for storage.
Has the advantages that: when the vehicle is overspeed or generates an overspeed signal, overspeed environment information during overspeed is obtained through the overspeed recording subsystem, the overspeed environment information comprises traffic flow information and road information on a road section where the vehicle is located during overspeed, and overspeed environment signs are extracted and stored through analyzing the overspeed environment information, so that the speed pre-judging subsystem can conveniently match the environment characteristics with the overspeed environment characteristics, and whether the driver has the possibility of overspeed behavior is judged.
Further, the overspeed recording subsystem is also used for acquiring overspeed control information during overspeed when the vehicle is overspeed, and extracting and storing overspeed control characteristics according to the overspeed control information.
Has the advantages that: the method comprises the steps of acquiring overspeed environment information during overspeed and overspeed control information during overspeed, extracting overspeed control characteristics according to the overspeed control information, and reducing traffic accidents by following speed limit requirements of roads in any case except the conditions of overspeed behaviors caused by driving habits under the conditions of few vehicles, few people and the like and the conditions of overspeed behaviors caused by emergency events of drivers.
Further, the speed pre-judging subsystem is further configured to obtain the control characteristics in real time, match the control characteristics with preset overspeed control characteristics, obtain the speed limit requirement of the current road section when the control matching value is greater than the preset value, and generate speed control information according to the speed limit requirement.
Has the advantages that: and matching according to the control characteristic and the overspeed control characteristic, and generating speed control information according to the speed limit requirement of the current road section to control the vehicle to run when the control matching value is greater than a preset value or when the environment matching value is greater than a preset value. When the environmental characteristics or the control characteristics of the vehicle during running meet the overspeed environmental characteristics or the overspeed control characteristics extracted during overspeed, the possibility of overspeed behavior of a driver exists, and at the moment, in order to avoid the occurrence of overspeed behavior, the running speed of the vehicle is controlled through the speed limit requirement so as to reduce the occurrence of traffic accidents.
The invention also aims to provide a vehicle speed limiting method for remote control, which comprises the following steps:
and a speed judgment step, namely acquiring the running speed and the speed limit requirement of the current road section in real time, generating an overspeed signal when the running speed does not meet the speed limit requirement, and generating a normal signal when the running speed meets the speed limit requirement.
Has the advantages that: the running speed of the vehicle is judged through the speed judging step, an overspeed signal is generated when the vehicle runs at an overspeed, and a normal signal is generated when the vehicle runs normally, so that different operations can be conveniently carried out according to different signals.
Further, the method also comprises the following steps:
overspeed recording: when the vehicle is overspeed, overspeed environment information during overspeed is acquired, and overspeed environment characteristics are extracted according to the overspeed environment information and stored.
Has the advantages that: and the overspeed environment information when the vehicle is overspeed is stored through the overspeed recording step, so that the reason for overspeed of the vehicle is conveniently analyzed, and the condition of overspeed is prevented from happening again.
Further, the overspeed recording step also acquires overspeed control information during overspeed, and extracts overspeed control characteristics according to the overspeed control information for storage.
Has the advantages that: the reason of the vehicle overspeed is not only caused by the environment, but also subjective by the driver, for example, the driver is in an emergency, and the situation of the overspeed is comprehensively recorded through the overspeed recording step, so that the reason of the vehicle overspeed is comprehensively analyzed.
Further, the method also comprises the following steps:
and a speed prejudging step, namely acquiring the environmental characteristics and the control characteristics in real time, matching the environmental characteristics with the preset overspeed environmental characteristics, matching the control characteristics with the preset overspeed control characteristics, acquiring the speed limit requirement of the current road section when the environmental matching value is greater than the preset value and/or the control matching value is greater than the preset value, and controlling the running speed of the vehicle according to the speed limit requirement.
Has the advantages that: the environmental characteristics and the control characteristics in the running process of the vehicle are obtained in real time through the speed pre-judging step and are matched with the stored overspeed environmental characteristics and overspeed control characteristics, so that whether the current running condition of the vehicle meets the running condition in overspeed or not is judged, the overspeed behavior of the vehicle is pre-judged, and the control on the speed of the vehicle is realized.
Drawings
FIG. 1 is a logic block diagram of a first embodiment of a vehicle speed limit system for remote control according to the present invention;
FIG. 2 is a logic block diagram of a second embodiment of the vehicle speed limit system for remote control of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
example one
The vehicle speed limiting system for remote control is shown in figure 1 and comprises a database, a speed pre-judging subsystem, a speed judging subsystem, an overspeed recording subsystem and a vehicle terminal, wherein overspeed environment characteristics, overspeed control characteristics and preset values are stored in the database. The overspeed environment characteristics are extracted from overspeed environment information when the vehicle is overspeed, and the environmental conditions, such as vehicle flow, people flow and monitoring conditions, when the vehicle is overspeed are reflected by the overspeed environment characteristics. The overspeed control feature is extracted from overspeed control information when the vehicle is overspeed, and the driving condition of the driver when the vehicle is overspeed, for example, the frequency or the number of times of horn operation, is reflected by the overspeed feature. The preset value can be fixed in the program by the developer when writing the program, and can also be automatically set according to the driving condition of the driver, and in the embodiment, the preset value is fixed in the program.
And the vehicle terminal is used for acquiring the running environment information and the running control information of the vehicle in real time and sending the running environment information and the running control information to the speed pre-judging subsystem. The driving environment information is information such as road width, traffic flow, pedestrian flow and monitoring on the current road section acquired through the internet of vehicles technology, and the driving control information is information such as accelerator inclination and horn frequency in the driving process of the vehicle.
A speed anticipation subsystem, comprising:
the driving feature extraction module is used for extracting environmental features from the driving environment information and extracting control features from the driving control information;
and the characteristic matching module is used for acquiring the overspeed environment characteristic and the overspeed control characteristic from the database, matching the environment characteristic with the overspeed environment characteristic and generating an environment matching value, and matching the control characteristic with the overspeed control characteristic and generating a control matching value. And the environment matching value and the control matching value adopt a tenth system, and the higher the value is, the greater the similarity between the current situation and the overspeed situation is represented, and the possibility of overspeed behavior is higher.
And the driving judgment module is used for acquiring a preset value from the database, wherein in the embodiment, the value of the preset value is 9. And comparing the environmental matching value with a preset value, comparing the control matching value with the preset value, and generating a pre-control signal when the control matching value is greater than the preset value and/or the environmental matching value is greater than the preset value, namely generating the pre-control signal when the control matching value and/or the environmental matching value is greater than 9.
And the speed control module is used for acquiring the current vehicle coordinate through the vehicle terminal when the control matching value is larger than the preset value and/or when the environment matching value is larger than the preset value (namely, a pre-control signal is received), acquiring the speed limit requirement of the current road section according to the current vehicle coordinate (the speed limit requirement is a driving speed range which is reached by and not exceeded by the vehicle required by the current road section or a driving speed range which is not allowed to exceed by the vehicle required by the current road section), and generating speed control information according to the speed limit requirement and sending the speed control information to the vehicle terminal.
And the vehicle terminal is also used for receiving the speed control information, generating a speed control value according to the speed control information and controlling the running speed of the vehicle according to the speed control value. The control modes comprise the following three modes: first, when the speed limit requirement is a driving speed range which is reached and not exceeded by the vehicle required on the current road section, the speed control value is fifty percent of the minimum value of the driving speed range and is superposed with the driving speed range; and when the speed limit requirement is a driving speed range which is not allowed to be exceeded by the current road section, the speed control value is eighty percent of the driving speed range, and the driving speed of the vehicle is controlled according to the speed control value. Secondly, when the speed limit requirement is a driving speed range which is reached and not exceeded by the vehicle required by the current road section, the speed control value is ninety percent of the minimum value of the driving speed range and is superposed with the driving speed range; and when the speed limit requirement is a driving speed range which is not allowed to be exceeded by the current road section, the speed control value is ninety-five percent of the driving speed range, and the speed control value is used as the maximum driving speed of the vehicle to control the driving speed of the vehicle, so that the overspeed behavior of the vehicle is avoided. Third, regardless of the speed limit requirement, the speed control value is fifty percent of the minimum value of the travel speed range superimposed over the travel speed range, and the travel speed of the vehicle is controlled based on the speed control value, e.g., when the travel speed range is 60 to 120, the corresponding speed control value is 60+ ((120-60) × 50%) -90. In the present embodiment, the first is preferable.
The vehicle speed limiting method for remote control based on the system comprises the following steps:
and a driving characteristic acquisition step of acquiring driving environment information and driving control information of the vehicle in real time, extracting an environment characteristic from the driving environment information, and extracting a control characteristic from the driving control information.
The speed pre-judging step specifically comprises the following steps:
s301, acquiring the overspeed environment characteristic and the overspeed control characteristic which are pre-stored in a database.
And S302, matching the environment characteristic and the overspeed environment characteristic, generating an environment matching value, matching the control characteristic and the overspeed control characteristic, and generating a control characteristic value.
S303, acquiring a preset value, and comparing the preset value with the control matching value and the environment matching value respectively.
S304, when the environment matching value is larger than the preset value and/or the control matching value is larger than the preset value, the current road section where the vehicle is located is obtained, the speed limit requirement of the current road section is obtained according to the current road section, and speed control information is generated according to the speed limit requirement.
S305, generating a speed control value according to the speed control information, wherein when the speed limit requirement is a driving speed range which is reached and not exceeded by the vehicle required by the current road section, the speed control value is fifty percent of the minimum value of the driving speed range; and when the speed limit requirement is a driving speed range which is not allowed to be exceeded by the current road section, the speed control value is eighty percent of the driving speed range, and the driving speed of the vehicle is controlled according to the speed control value.
Example two
In the first embodiment, the driving environment information and the driving control information of different people at overspeed are collected according to big data, and the overspeed environment characteristic and the overspeed control characteristic are extracted to be used for prejudging the overspeed behavior of the vehicle. However, since the driving habits of each person are different, the driving environment information and the driving control information are different for each person when the corresponding person is speeding, and the data counted by the big data may deviate from the actual data of the person.
The difference between the present embodiment and the first embodiment is: in this embodiment, the vehicle speed limiting system for remote control further includes a speed judgment subsystem and an overspeed recording subsystem, as shown in fig. 2.
And the vehicle terminal is also used for acquiring the running speed and the current vehicle coordinate of the vehicle in real time and sending the running speed and the current vehicle coordinate to the speed judgment subsystem.
A speed determination subsystem comprising:
and the speed limit requirement acquisition module is used for acquiring the speed limit requirement of the current road section in real time according to the current vehicle coordinate (the speed limit requirement is a driving speed range which is reached by the vehicle required by the current road section and is not exceeded or is not allowed to exceed).
The overspeed judgment module is used for judging whether the running speed is within the speed limit requirement or not, and generating a normal signal when the running speed meets the speed limit requirement; and when the running speed does not meet the speed limit requirement, generating an overspeed signal and sending the overspeed signal to the vehicle terminal. When the speed limit requirement is a driving speed range which is reached by the vehicle required by the current road section and is not exceeded, the driving speed is out of the driving speed range, namely the speed limit requirement is not met. And when the speed limit requirement is a driving speed range which is not allowed to be exceeded by the current road section, the driving speed exceeds the driving speed range, namely the speed limit requirement is not met.
And the vehicle terminal is used for acquiring overspeed environment information and overspeed control information during overspeed and sending the overspeed environment information and the overspeed control information to the overspeed recording subsystem when receiving the overspeed signal, wherein the overspeed environment information can be acquired through a vehicle networking technology.
An overspeed recording subsystem comprising:
and the environment recording module is used for extracting the overspeed environment characteristics from the overspeed environment information and storing the overspeed environment characteristics in the database. In this embodiment, the overspeed environment characteristics include vehicle flow, pedestrian flow, and presence or absence of monitoring.
And the control recording module is used for extracting the overspeed control characteristics from the overspeed control information and storing the overspeed control characteristics in a database. In this embodiment, the overspeed control information includes the frequency at which the driver presses the horn.
The condition of the driver during overspeed is recorded by the speed judgment subsystem and the overspeed recording subsystem, and the recorded overspeed control characteristics and overspeed environment characteristics are used as standards for pre-judging whether the vehicle is easy to overspeed, so that the overspeed behavior of the driver is accurately pre-judged.
The vehicle speed limiting method for remote control based on the system further comprises the following steps:
and a speed judgment step, namely acquiring the current vehicle coordinate in real time, and acquiring the speed limit requirement of the current road section in real time according to the current vehicle coordinate. And acquiring the running speed of the vehicle in real time, and judging whether the running speed meets the speed limit requirement or not. When the running speed meets the speed limit requirement, generating a normal signal; and when the running speed does not meet the speed limit requirement, generating an overspeed signal.
And an overspeed recording step of acquiring overspeed environment information and overspeed control information at the time of overspeed when the vehicle is overspeed. And extracting overspeed environment characteristics from the overspeed environment information, extracting overspeed control characteristics from the overspeed control information, and storing the overspeed environment characteristics and the overspeed control characteristics.
EXAMPLE III
The present embodiment is different from the second embodiment in that: in this embodiment, the vehicle speed limiting system for remote control further includes a detection terminal.
The detection terminal includes:
the first detection assembly comprises a first detector, a second detector and a first controller, the first detector and the second detector are respectively and oppositely arranged on an upper end connecting ring and a lower end connecting ring of the automobile shock absorber, and the first controller is used for calculating the relative distance between the first detector and the second detector according to signals of the first detector and the second detector, calculating a distance difference value according to adjacent relative distances and generating a jitter coefficient according to the distance difference value. In this embodiment, the first detector and the second detector are preferably a transmitting end and a receiving end of laser ranging, the transmitting end of the laser ranging is mounted on an upper end connecting ring of the automobile shock absorber, the receiving end of the laser ranging is mounted on a lower end connecting ring of the automobile shock absorber, the transmitting end and the receiving end are arranged oppositely, the receiving end can receive a laser signal sent by the transmitting end, the first controller performs subtraction operation according to the time of sending the laser signal by the transmitting end and the time of receiving the laser signal by the receiving end to obtain a time interval, calculates the relative distance between the transmitting end and the receiving end according to the time interval, calculates a distance difference according to adjacent relative distances, and generates a jitter coefficient according to the distance difference, the larger the jitter coefficient reflects the larger the damping distance of the shock absorber, so that the steeper the road surface is reflected.
And the second detection assembly comprises a third detector and a second controller, the third detector is installed on a seat of an automobile driver seat, the third detector is used for acquiring pressure data of the seat, and the second controller is used for calculating a pressure difference value according to the adjacent upper and lower peak values of the pressure data and generating a comfort coefficient according to the pressure difference value. In this embodiment, the third detector is preferably a pressure sensor, and the pressure sensor is configured to detect pressure data of the seat while the driver is driving, calculate a pressure difference value according to adjacent upper and lower peak values of the pressure data, and generate a comfort coefficient according to the pressure difference value, where a larger pressure difference value reflects a smaller comfort coefficient, and thus reflects a higher road shake.
And the third detection assembly comprises a fourth detector and a third controller, the fourth detector is arranged on a fender of the automobile, the fourth detector is used for detecting pressure data and range data of water splashed onto the fender on the fender, and the third controller is used for generating a slip coefficient according to the pressure data and the range data and weight. In this embodiment, the fourth detector is preferably a plurality of pressure sensors, the pressure sensors are uniformly distributed and mounted on a fender of the automobile, the third controller is used for generating a slip coefficient (the range data is the number of the pressure sensors detecting the pressure) according to the pressure data and the range data of each pressure sensor according to weights, the larger the pressure data and the larger the range data are, the larger the slip coefficient is reflected, and therefore, the more the surface water is reflected.
And the detection controller is used for receiving the jitter coefficient sent by the first controller, the comfort coefficient sent by the second controller and the slip coefficient sent by the third controller, generating a speed-limiting regulation proportion (the speed-limiting weight is preset by the system, and the range of the speed-limiting regulation proportion is 0-1) according to the jitter coefficient, the comfort coefficient, the slip coefficient and other coefficients and preset speed-limiting weights, and sending the speed-limiting regulation proportion to the vehicle terminal. In other embodiments, a fourth detecting assembly may be further provided, including a fourth controller and a fifth detector disposed on the brake pad, the fifth detector being configured to detect temperature data of the brake pad (the fifth detector is preferably a temperature sensor), the fourth controller being configured to generate other coefficients according to the temperature data, and the detecting controller being configured to generate the speed limit adjusting proportion according to the dithering coefficient, the comfort coefficient, the slip coefficient, and the other coefficients and the preset speed limit weight.
And the vehicle terminal is used for receiving the speed limit adjusting proportion and adjusting the speed control value according to the speed limit adjusting proportion. When the speed limit requirement is a running speed range which is not exceeded by the vehicles required by the current road section, the speed control value is fifty percent of the minimum value superposition running speed range of the running speed range, and when the speed limit regulation proportion is 0.8, the speed control value is regulated to be forty percent of the minimum value superposition running speed range of the running speed range; and when the speed limit requirement is a driving speed range which is not allowed to be exceeded by the current road section, the speed control value is eighty percent of the driving speed range, the driving speed of the vehicle is controlled according to the speed control value, and when the speed limit adjusting proportion is 0.8, the speed control value is adjusted to be the minimum value of the driving speed range and sixty-four percent of the driving speed range.
The vehicle speed limiting method for remote control uses the system.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (9)
1. A vehicle speed limit system for remote control, comprising:
the speed pre-judging subsystem is used for acquiring the environmental characteristics in real time, matching the environmental characteristics with preset overspeed environmental characteristics, acquiring the speed limit requirement of the current road section when the environmental matching value is greater than the preset value, and generating speed control information according to the speed limit requirement;
the vehicle terminal is used for generating a speed control value according to the speed control information and controlling the running speed of the vehicle according to the speed control value;
a detection terminal, comprising:
the first detection assembly comprises a first detector, a second detector and a first controller, wherein the first detector and the second detector are respectively a transmitting end and a receiving end, and are respectively and oppositely arranged on an upper end connecting ring and a lower end connecting ring of the automobile shock absorber; the first controller is used for calculating the relative distance between the first detector and the second detector according to the signals of the first detector and the second detector, calculating a distance difference value according to adjacent relative distances and generating a jitter coefficient according to the distance difference value;
the second detection assembly comprises a third detector and a second controller, the third detector is used for acquiring pressure data of the seat, and the second controller is used for calculating a pressure difference value according to adjacent upper and lower peak values of the pressure data and generating a comfort coefficient according to the pressure difference value;
a third detection assembly comprising a fourth detector and a third controller, wherein the fourth detector is used for detecting pressure data and range data of water splashed onto the splash guard on the splash guard, and the third controller is used for generating a slip coefficient according to the pressure data and the range data and weight;
the detection controller is used for generating a speed limit regulation proportion according to the jitter coefficient, the comfort coefficient and the slip coefficient and the preset speed limit weight, and sending the speed limit regulation proportion to the vehicle terminal;
the vehicle terminal is also used for adjusting the speed control value according to the speed limit adjusting proportion.
2. The vehicle speed limit system for remote control of claim 1, further comprising:
and the speed judgment subsystem is used for acquiring the running speed and the speed limit requirement of the current road section in real time and generating an overspeed signal according to the running speed and the speed limit requirement.
3. The vehicle speed limit system for remote control according to claim 1 or 2, further comprising:
and the overspeed recording subsystem is used for acquiring overspeed environment information during overspeed when the vehicle is overspeed, and extracting overspeed environment characteristics according to the overspeed environment information for storage.
4. The vehicle speed limit system for remote control of claim 3, wherein: and the overspeed recording subsystem is also used for acquiring overspeed control information when the vehicle is overspeed and extracting overspeed control characteristics according to the overspeed control information for storage.
5. The vehicle speed limit system for remote control of claim 4, wherein: the speed pre-judging subsystem is also used for acquiring the control characteristics in real time, matching the control characteristics with the preset overspeed control characteristics, acquiring the speed limit requirement of the current road section when the control matching value is greater than the preset value, and generating speed control information according to the speed limit requirement.
6. A vehicle speed limiting method for remote control is characterized in that: the method comprises the following steps:
a speed judgment step, namely acquiring the running speed and the speed limit requirement of the current road section in real time, generating an overspeed signal when the running speed does not meet the speed limit requirement, and generating a normal signal when the running speed meets the speed limit requirement;
a speed prejudging step, namely acquiring environmental characteristics in real time, matching the environmental characteristics with preset overspeed environmental characteristics, acquiring the speed limit requirement of the current road section when the environmental matching value is greater than the preset value, generating speed control information according to the speed limit requirement, generating a speed control value according to the speed control information, and controlling the running speed of the vehicle according to the speed control value;
further comprising the steps of:
the first detector and the second detector are respectively a transmitting end and a receiving end, and are respectively and oppositely arranged on an upper end connecting ring and a lower end connecting ring of the automobile shock absorber; calculating a relative distance between the first detector and the second detector according to signals of the first detector and the second detector, calculating a distance difference according to adjacent relative distances, and generating a jitter coefficient according to the distance difference;
acquiring pressure data of the seat, calculating a pressure difference value according to adjacent upper and lower peak values of the pressure data, and generating a comfort coefficient according to the pressure difference value;
detecting pressure data and range data of water splashed onto the fender to the fender, and generating a slip coefficient according to the pressure data and the range data and the weight;
generating a speed limit regulation proportion according to the jitter coefficient, the comfort coefficient and the slip coefficient and the preset speed limit weight, and sending the speed limit regulation proportion to the vehicle terminal; and adjusting the speed control value according to the speed limit adjusting proportion.
7. The method for remotely controlling speed limiting of a vehicle as claimed in claim 6, further comprising the steps of:
overspeed recording: when the vehicle is overspeed, overspeed environment information during overspeed is acquired, and overspeed environment characteristics are extracted according to the overspeed environment information and stored.
8. The method for speed limiting of a vehicle by remote control according to claim 7, wherein the overspeed recording step further acquires overspeed control information at the time of overspeed, and extracts overspeed control characteristics according to the overspeed control information for storage.
9. The method for speed limiting a vehicle by remote control according to claim 8, characterized in that: further comprising the steps of:
and a speed prejudging step, namely acquiring the control characteristics in real time, matching the control characteristics with preset overspeed control characteristics, acquiring the speed limit requirement of the current road section when the control matching value is greater than the preset value, and controlling the running speed of the vehicle according to the speed limit requirement.
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