CN109484394A - The system and method for obtaining vehicle safety travel speed - Google Patents
The system and method for obtaining vehicle safety travel speed Download PDFInfo
- Publication number
- CN109484394A CN109484394A CN201811435960.5A CN201811435960A CN109484394A CN 109484394 A CN109484394 A CN 109484394A CN 201811435960 A CN201811435960 A CN 201811435960A CN 109484394 A CN109484394 A CN 109484394A
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- limit value
- speed limit
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- automobile
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 45
- 238000001556 precipitation Methods 0.000 claims abstract description 20
- 230000002596 correlated effect Effects 0.000 claims description 9
- 230000002452 interceptive effect Effects 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000000875 corresponding effect Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 239000004568 cement Substances 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 108091035707 Consensus sequence Proteins 0.000 description 1
- 206010057315 Daydreaming Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
- B60W40/064—Degree of grip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/143—Alarm means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
- B60W2555/20—Ambient conditions, e.g. wind or rain
Abstract
The invention discloses a kind of system and method for obtaining vehicle safety travel speed, belong to car steering field.The system includes: monitoring modular, control module and cue module.Monitoring modular includes: precipitation rain fall sensor, attachment condition pickoffs and surrounding enviroment sensor.Precipitation rain fall sensor, for identification the weather condition information of motor vehicle environment.Adhere to condition pickoffs, for monitoring the attachment coefficient of automobile and ground.Surrounding enviroment sensor, for monitoring the surrounding enviroment information of automobile.Control module, for according to weather condition information, attachment coefficient and surrounding enviroment acquisition of information speed limit value.Cue module, for prompting speed limit value.The present invention carries out real-time data acquisition by monitoring modular, control module prompts speed limit value by cue module according to after monitoring information acquisition speed limit value, user is set to would know that the safe velocity of conditions present under different driving conditions, the probability that safety accident occurs is reduced, drive safety is improved.
Description
Technical field
The present invention relates to car steering field, in particular to a kind of system and method for obtaining vehicle safety travel speed.
Background technique
With popularizing for vehicle, road safety issues increasingly cause the attention of client.It is especially severe in sleet mist etc.
When weather, rain and fog weather causes visibility lower, snowy day road surface slippery situation, is easier to that road safety accident occurs.
The reason of road safety accident occurs generally drive speed is too fast, and speed is too fast to cause driver encountering burst
There is no sufficient reaction time and deceleration time when situation, and then leads to the generation of safety accident.
Summary of the invention
The embodiment of the invention provides a kind of system and method for obtaining vehicle safety travel speed, can solve above-mentioned technology
Problem.Specific technical solution is as follows:
Provide a kind of system for obtaining vehicle safety travel speed, the system comprises: monitoring modular, control module and
Cue module,
The monitoring modular includes: precipitation rain fall sensor, attachment condition pickoffs and surrounding enviroment sensor, and the rainfall passes
Sensor, the attachment condition pickoffs and the surrounding enviroment sensor are arranged on automobile, and respectively with the control module
Connection, the control module are connect with the cue module；
The precipitation rain fall sensor, for identification the weather condition information of the motor vehicle environment and by the weather condition information
It is sent to the control module；
The attachment condition pickoffs, for monitoring the attachment coefficient of the automobile and ground and sending out the attachment coefficient
Give the control module；
The surrounding enviroment sensor, for monitoring the surrounding enviroment information of the automobile and by the surrounding enviroment information
It is sent to the control module；
The control module, for according to the weather condition information, the attachment coefficient and the surrounding enviroment information
Speed limit value is obtained, and the speed limit value is sent to the cue module；
The cue module, for prompting the speed limit value.
In a kind of possible design, the system also includes vehicle-speed monitoring unit and alarm unit, the vehicle-speed monitoring
Unit and the alarm unit are connect with the control module respectively；
The vehicle-speed monitoring unit, for monitoring the travel speed of the automobile and being sent to the travel speed described
Control module；
The control module, for issuing instruction and controlling the alarm when the travel speed is more than the speed limit value
Unit is alarmed.
In a kind of possible design, the system also includes interactive module, the interactive module and the control module
Connection, for obtaining the target velocity of user and the speed limit value being adjusted to the target velocity.
In a kind of possible design, the system also includes execution module, the execution module and the control module
When connection for the travel speed in the automobile is more than the speed limit value by the adjustment of the travel speed of the automobile to less than or
Equal to the speed limit value.
Provide the method for obtaining vehicle safety travel speed using system described in any of the above embodiments, the method packet
It includes:
The weather condition information of motor vehicle environment is obtained by precipitation rain fall sensor；
The attachment coefficient on the automobile and ground is obtained by adhering to condition pickoffs；
The surrounding enviroment information of the automobile is obtained by surrounding enviroment sensor；
According to the weather condition information, the attachment coefficient and the surrounding enviroment acquisition of information speed limit value；
The speed limit value is prompted by cue module.
In a kind of possible design, the surrounding enviroment information includes the road conditions of the running car reason, the vapour
Visibility and the automobile around vehicle is at a distance from barrier.
In a kind of possible design, the attachment coefficient and the speed limit value are positively correlated.
In a kind of possible design, the weather condition information includes rainfall, the rainfall and the speed limit value
It is negatively correlated.
In a kind of possible design, the visibility and the speed limit value are positively correlated.
Technical solution bring beneficial effect provided in an embodiment of the present invention includes at least:
Real-time data acquisition is carried out by monitoring modular, control module passes through prompt after obtaining speed limit value according to monitoring information
Module prompts speed limit value, and user is allow to would know that the safety traffic speed of conditions present under different driving conditions
Degree reduces the probability that safety accident occurs, and improves drive safety.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the schematic diagram of the system provided in an embodiment of the present invention for obtaining vehicle safety travel speed.
Specific embodiment
Unless otherwise defined, all technical terms used in the embodiment of the present invention all have usual with those skilled in the art
The identical meaning understood.To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to this hair
Bright embodiment is described in further detail.
As shown in Fig. 1, the embodiment of the invention provides a kind of system for obtaining vehicle safety travel speed, the system packets
It includes: monitoring modular, control module and cue module.
Monitoring modular includes: precipitation rain fall sensor, attachment condition pickoffs and surrounding enviroment sensor, precipitation rain fall sensor, attached
Condition pickoffs and surrounding enviroment sensor setting connect on automobile, and respectively with control module, control module with prompt
Module connection；
Weather condition information the weather condition information of motor vehicle environment and is sent to control mould for identification by precipitation rain fall sensor
Block；
Adhere to condition pickoffs, for monitoring the attachment coefficient of automobile and ground and attachment coefficient being sent to control mould
Block；
Surrounding enviroment sensor, for monitoring the surrounding enviroment of automobile and surrounding enviroment information being sent to control module；
Control module is used for according to weather condition information, attachment coefficient and surrounding enviroment acquisition of information speed limit value, and will limit
Fast value is sent to cue module；
Cue module, for prompting speed limit value.
The working principle of the system provided in an embodiment of the present invention for obtaining vehicle safety travel speed is illustrated below:
Precipitation rain fall sensor, attachment condition pickoffs and surrounding enviroment sensor are arranged on automobile, carry out data collection work
Make.Weather condition information is simultaneously sent to control module by the weather condition of precipitation rain fall sensor identification motor vehicle environment.Attachment condition passes
Attachment coefficient is simultaneously sent to control module by sensor monitoring automobile and the attachment coefficient on ground.Surrounding enviroment sensor monitors automobile
Surrounding enviroment and surrounding enviroment information is sent to control module.Control module is according to the weather condition information, attached received
Coefficient and surrounding enviroment information, obtain speed limit value using pre-set programs, and speed limit value be sent to cue module, pass through prompt
Module prompts speed limit value, which is vehicle safety travel speed, when driving with the speed no more than the speed limit value,
Drive safety is higher.
The system provided in an embodiment of the present invention for obtaining vehicle safety travel speed, carries out real time data by monitoring modular
Acquisition, control module prompt speed limit value by cue module according to after monitoring information acquisition speed limit value, allow user
It would know that the safe velocity of conditions present under different driving conditions, reduce the probability that safety accident occurs, improve
Drive safety.
Wherein, precipitation rain fall sensor can be by monitoring the Weather informations such as precipitation and air humidity, and by the weather feelings
Condition information is sent to control module, and control module judges weather for rain, snow or fog etc..
Attachment condition pickoffs can be the traction control system loaded on automobile or newly-increased ground is attached on automobile
Condition monitoring appliance as attachment condition pickoffs, attachment condition pickoffs measurement traction simultaneously traction is sent out
Give control module.
Surrounding enviroment sensor can be 360 degree of hologram devices being mounted on automobile, which claps
It takes the photograph the image information of motor vehicle environment and the image information is sent to control module, control module obtains automobile from image information
The road conditions on place ground, the automobile information such as at a distance from the barrier of periphery.
Cue module can prompt speed limit value in such a way that voice broadcast service and/or screen are shown.
System provided in an embodiment of the present invention further includes vehicle-speed monitoring unit and alarm unit, vehicle-speed monitoring unit and alarm
Unit is connect with control module respectively.Vehicle-speed monitoring unit, for monitoring the travel speed of automobile and being sent to travel speed
Control module.Control module is alarmed for when travel speed is more than speed limit value, issuing instruction control alarm unit.
By setting vehicle-speed monitoring unit and alarm unit, warning reminding user is carried out when speed is more than speed limit value and has been surpassed
Speed avoids user because of the problem that exceeds the speed limit caused by absent minded, further increases drive safety.
In order to improve user experience, which further includes interactive module, and interactive module is connect with control module, for obtaining
Speed limit value is simultaneously adjusted to target velocity by the target velocity of user.So set, working as the speed limit value that cue module issues the user with
And when the target velocity deviation of psychological expectation of customer is larger, for example, being driven in the less section of vehicle or period and user
It sails under veteran situation, user's speed limit value to be improved；When user's driving technology is poor, user's speed limit value to be reduced.On
With speed limit value can be adjusted by interactive module per family to target velocity in the case of stating two kinds, keeps speed limit value more humane, improve
User experience.
Optionally, which further includes execution module, and execution module is connect with control module, for the traveling speed in automobile
By the travel speed adjustment of automobile to less than or equal to speed limit value when degree is more than speed limit value.
Control module obtains the travel speed of automobile by vehicle-speed monitoring unit, and the travel speed and speed limit value are carried out
Comparison issues instructions to execution module if the travel speed is more than speed limit value, and execution module executes deceleration-operation.Pass through setting
Execution module makes drive speed be no more than speed limit value always, improves drive safety.
The embodiment of the invention provides the method that the system using any of the above-described obtains vehicle safety travel speed, the party
Method includes:
The weather condition information of motor vehicle environment is obtained by precipitation rain fall sensor；
The attachment coefficient of automobile and ground is obtained by attachment condition pickoffs；
The surrounding enviroment information of automobile is obtained by surrounding enviroment sensor；
According to weather condition information, attachment coefficient and surrounding enviroment acquisition of information speed limit value；
Speed limit value is prompted by cue module.
Precipitation rain fall sensor, attachment condition pickoffs and surrounding enviroment sensor, precipitation rain fall sensor, attachment condition pickoffs and
Surrounding enviroment sensor is arranged on automobile, carries out data collection effort.The weather condition of precipitation rain fall sensor identification motor vehicle environment
And weather condition information is sent to control module.Adhere to the attachment coefficient of condition pickoffs monitoring automobile and ground and will adhere to
Coefficient is sent to control module.Surrounding enviroment information is simultaneously sent to control by the surrounding enviroment of surrounding enviroment sensor monitoring automobile
Module.Control module is obtained according to the weather condition information, attachment coefficient and the surrounding enviroment information that receive using pre-set programs
Speed limit value, and speed limit value is sent to cue module, speed limit value is exported to user by cue module, which is automobile peace
Full travel speed, when driving with the speed no more than the speed limit value, drive safety is higher.
The method provided in an embodiment of the present invention for obtaining vehicle safety travel speed, carries out real time data by monitoring modular
Acquisition, control module prompt speed limit value by cue module according to after monitoring information acquisition speed limit value, allow user
It would know that the safe velocity of conditions present under different driving conditions, reduce the probability that safety accident occurs, improve
Drive safety.
Wherein, the surrounding enviroment information that surrounding enviroment sensor monitors includes the road conditions of running car road, automobile week
The visibility and automobile enclosed are at a distance from barrier.It is that muddy road, cement road or high speed are public that surrounding enviroment sensor, which monitors road surface,
Road etc., the speed limit value that control module exports under different road conditions are different.For example, highway is corresponding when remaining condition is identical
Speed limit value is greater than the corresponding speed limit value of cement road and is greater than the corresponding speed limit value in muddy road.Visibility and speed limit value are positively correlated, that is, its
When remaining condition is identical, visibility is higher, and speed limit value is bigger.Automobile may include automobile and fixed obstacle at a distance from barrier
The distance and automobile of (such as roadside fence, roadblock etc.) are at a distance from remaining vehicle.Automobile is closer at a distance from remaining vehicle,
Illustrate vehicle comparatively dense, corresponding speed limit value is smaller.
Ground attached sensors are positively correlated for monitoring attachment coefficient, attachment coefficient and speed limit value.Attachment coefficient is higher, says
Frictional force between bright automobile and ground is bigger, and the road holding of automobile tire is stronger, and corresponding speed limit value is bigger.
The weather condition of precipitation rain fall sensor monitoring includes rainfall, and rainfall and speed limit value are negatively correlated, that is, remaining condition phase
Meanwhile rainfall is bigger, corresponding speed limit value is smaller.
For control module how according to weather condition information, attachment coefficient and surrounding enviroment acquisition of information speed limit value, with
Under provide control module speed limit determined according to the rainfall, visibility, average obstacle distance and the ground attaching coefficient that get
A kind of example of value:
One group of consensus sequence is preset within the control module, and benchmark speed limit value is V in the consensus sequence0(unit km/h),
Corresponding benchmark rainfall Q0(unit mm), benchmark visibility S0(unit m), benchmark are averaged obstacle distance as L0(unit is
And benchmark ground attachment coefficient K m)0。
According to the rainfall Q of acquisition1, visibility S1, average obstacle distance be L1, ground attaching coefficient K1, benchmark speed limit
Value is V0, corresponding benchmark rainfall Q0, benchmark visibility S0, benchmark be averaged obstacle distance be L0With benchmark ground attachment coefficient
K0, speed limit value V is obtained using following formula one1:
Formula one:
In formula, V1Indicate speed limit value, unit km/h；
Q1For the rainfall of acquisition, unit mm；
S1For the visibility of acquisition, unit m；
L1For the average obstacle distance of acquisition, unit m；
K1For ground attaching coefficient, dimensionless；
V0For benchmark speed limit value, unit km/h；
Q0For benchmark rainfall, unit mm；
S0For benchmark visibility, unit m；
L0On the basis of average obstacle distance, unit m；
K0For benchmark ground attaching coefficient, dimensionless.
The foregoing is merely illustrative embodiments of the invention, the protection scope being not intended to limit the invention is all at this
Within the spirit and principle of invention, any modification, equivalent replacement, improvement and so on should be included in protection model of the invention
Within enclosing.
Claims (9)
1. a kind of system for obtaining vehicle safety travel speed, which is characterized in that the system comprises: monitoring modular, control mould
Block and cue module,
The monitoring modular includes: precipitation rain fall sensor, attachment condition pickoffs and surrounding enviroment sensor, the rainfall sensing
Device, the attachment condition pickoffs and the surrounding enviroment sensor are arranged on automobile, and connect respectively with the control module
It connects, the control module is connect with the cue module；
The precipitation rain fall sensor, for identification the weather condition information of the motor vehicle environment and by the weather condition information send
To the control module；
The attachment condition pickoffs, for monitoring the attachment coefficient of the automobile and ground and being sent to the attachment coefficient
The control module；
The surrounding enviroment sensor, for monitoring the surrounding enviroment information of the automobile and sending the surrounding enviroment information
To the control module；
The control module, for according to the weather condition information, the attachment coefficient and the surrounding enviroment acquisition of information
Speed limit value, and the speed limit value is sent to the cue module；
The cue module, for prompting the speed limit value.
2. system according to claim 1, which is characterized in that the system also includes vehicle-speed monitoring unit and alarm are single
Member, the vehicle-speed monitoring unit and the alarm unit are connect with the control module respectively；
The vehicle-speed monitoring unit, for monitoring the travel speed of the automobile and the travel speed being sent to the control
Module；
The control module, for issuing instruction and controlling the alarm unit when the travel speed is more than the speed limit value
It alarms.
3. system according to claim 1 or 2, which is characterized in that the system also includes interactive module, the interactive mould
Block is connect with the control module, for obtaining the target velocity of user and the speed limit value being adjusted to the target velocity.
4. system according to claim 2, which is characterized in that the system also includes execution module, the execution module
It is connect with the control module, by the traveling speed of the automobile when for the travel speed in the automobile more than the speed limit value
Degree adjusts to less than or equal to the speed limit value.
5. the method for obtaining vehicle safety travel speed using the described in any item systems of Claims 1-4 4, which is characterized in that
The described method includes:
The weather condition information of motor vehicle environment is obtained by precipitation rain fall sensor；
The attachment coefficient on the automobile and ground is obtained by adhering to condition pickoffs；
The surrounding enviroment information of the automobile is obtained by surrounding enviroment sensor；
According to the weather condition information, the attachment coefficient and the surrounding enviroment acquisition of information speed limit value；
The speed limit value is prompted by cue module.
6. according to the method described in claim 5, it is characterized in that, the surrounding enviroment information includes the running car reason
Road conditions, the visibility of the motor vehicle environment and the automobile at a distance from barrier.
7. according to the method described in claim 5, it is characterized in that, the attachment coefficient and the speed limit value are positively correlated.
8. according to the method described in claim 5, it is characterized in that, the weather condition information includes rainfall, the rainfall
Amount and the speed limit value are negatively correlated.
9. according to the method described in claim 6, it is characterized in that, the visibility and the speed limit value are positively correlated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435960.5A CN109484394B (en) | 2018-11-28 | 2018-11-28 | System and method for acquiring safe driving speed of automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435960.5A CN109484394B (en) | 2018-11-28 | 2018-11-28 | System and method for acquiring safe driving speed of automobile |
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| CN109484394B CN109484394B (en) | 2021-03-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112706612A (en) * | 2019-10-24 | 2021-04-27 | 上海宗保科技有限公司 | Networking positioning system based on automobile driving |
| CN113147733A (en) * | 2021-04-30 | 2021-07-23 | 东风汽车集团股份有限公司 | Intelligent speed limiting system and method for automobile in rain, fog and sand-dust weather |
| CN113298346A (en) * | 2021-04-16 | 2021-08-24 | 姜超 | Intelligent public transportation monitoring management system and method based on Internet of things |
| CN116959261A (en) * | 2023-09-20 | 2023-10-27 | 武汉车凌智联科技有限公司 | Vehicle safety driving monitoring and early warning system based on cloud platform |
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