CN106314401A - Active braking device based on vehicle lamp visible light communication - Google Patents
Active braking device based on vehicle lamp visible light communication Download PDFInfo
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- CN106314401A CN106314401A CN201610696982.1A CN201610696982A CN106314401A CN 106314401 A CN106314401 A CN 106314401A CN 201610696982 A CN201610696982 A CN 201610696982A CN 106314401 A CN106314401 A CN 106314401A
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- 206010057855 Hypotelorism of orbit Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
- B60T2201/02—Active or adaptive cruise control system; Distance control
- B60T2201/022—Collision avoidance systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
- B60T2210/10—Detection or estimation of road conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
- B60T2210/20—Road shapes
- B60T2210/22—Banked curves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
- B60T2210/30—Environment conditions or position therewithin
- B60T2210/36—Global Positioning System [GPS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2240/00—Monitoring, detecting wheel/tire behaviour; counteracting thereof
- B60T2240/06—Wheel load; Wheel lift
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Human Computer Interaction (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses an active braking device based on vehicle lamp visible light communication, which comprises a vehicle lamp visible light communication module, an active braking control module and a sensor group, wherein the vehicle lamp visible light communication module comprises a total data communication module, the output end of the sensor group is connected with the signal input end of the active braking control module, the active braking control module is connected with the total data communication module, the sensor group comprises a wheel vertical load sensor and/or a road surface gradient sensor and/or an obstacle distance sensor and/or a wheel cylinder pressure sensor, the active braking control module is in control connection with the braking module of a vehicle, and the vehicle lamp visible light communication module is used for acquiring running state information of surrounding vehicles. The invention utilizes the visible light communication of the car lights to communicate the cars with each other, obtains the information of the surrounding cars, and combines the running state of the car per se to effectively and actively brake the car, thereby greatly improving the reliability, the safety and the stability.
Description
Technical field
The present invention relates to a kind of active brake gear based on car light visible light communication, belong to field of automotive active safety.
Background technology
At present, automobile is travelling when, and brake is essentially all by driver's control, at driver fatigue, deserts
When, it is easy to getting into an accident, knock the barrier in front, existing electronic equipment substantially can not actively brake, keep away
Exempt from the generation of traffic accident.
The Chinese patent of Application No. CN201410677906.7 discloses a kind of emergency brake intelligence based on car networking
Control method, which discloses a kind of emergency brake intelligence control system based on car networking, and it includes GPS module, CAN
Module, wireless communication module and data processing module.The defect that this control system exists is: the most described wireless communication module uses
Technology be 802.11 (WiFi), bluetooth or Zigbee, owing to its wireless signal has a penetrance, therefore identifying that road is gone forward
Become complicated during rear vehicle；The most described control system is only braked into taking action at fore-aft vehicle, fails to consider that vehicle exists
The situation of vehicle hypotelorism under other abnormal condition, as too low in blow out situation, front truck travel speed of vehicle, but do not have
Carry out brake operation etc.；The most described control system is active safety systems of vehicles, higher to network requirement, needs less network
Time ductility and higher bandwidth, the technology that described wireless communication module uses is that 802.11 (WiFi), bluetooth or Zigbee reach
Requirement less than this system.
The Chinese patent of Application No. CN201410574529.4 discloses a kind of automobile active breaking systems, it comprise away from
From induction module, speed acquisition module, brake module, alert module and control module.This invention can be at vehicle and front car
, the distance of barrier or pedestrian less than safe distance time, it is possible to remind driver also to implement braking, but this invention exist bright
Aobvious defect, the most 1. this invention does not accounts for road gradient problem, when vehicle is on lower abrupt slope, the peace calculated due to controller
Full distance is too small, causes great potential safety hazard, easily has an accident when driver too relies on this invention；2. this invention does not has
There is consideration coefficient of road adhesion problem, it is impossible to distinguish the different road surfaces such as ice and snow road and dry cement, therefore in ice and snow road traveling
Time, controller calculates too small safe distance, causes potential safety hazard, and vehicle rear-end collision accident occurs；3. controller is calculating car
Do not account for the speed of front truck between during safe distance, make again theory α coefficient apart from excessive, it is impossible to make full use of path resource, right
Waste is caused in crowded urban road resource.
Summary of the invention
The technical problem to be solved is the defect overcoming prior art, it is provided that a kind of logical based on car light visible ray
The active brake gear of letter, it utilizes car light visible light communication to make vehicle intercommunication, obtains surrounding vehicles information, and combine
The vehicle running state of self, implements effective actively brake, substantially increases reliability, safety and stability vehicle.
In order to solve above-mentioned technical problem, the technical scheme is that a kind of active based on car light visible light communication
Brake gear, it includes car light visible light communication module, actively brake control module and sensor group, car light visible light communication mould
Block includes that total data communication module, the outfan of sensor group are connected with the signal input part of active brake control module, actively
Brake control module is connected with total data communication module, and described sensor group includes wheel vertical load sensor and/or road surface
Slope Transducer and/or obstacle distance sensor and/or Wheel cylinder pressure sensors, described active brake control module and vehicle
Brake module control connect, wherein,
Described car light visible light communication module is used for obtaining the running condition information of surrounding vehicles, and by the row of surrounding vehicles
Sail status information and send actively brake control module to by total data communication module；
Described sensor group for sending actively brake control module to by the corresponding own parameter information gathered；
Actively brake control module transmits around according to the vehicle wheel rotational speed information received, car light visible light communication module
The own parameter information that the running condition information of vehicle and sensor group collect controls the work of brake module.
Further provide the acquiring way of a kind of vehicle wheel rotational speed information, the anti-blocking brake system of vehicle and/or vehicle body
Electric stabilizing system is connected with described total data communication module, and described anti-blocking brake system and/or described body electronics are stable
The vehicle wheel rotational speed information obtained is passed to described active brake control module by described total data communication module by system, and
Described anti-blocking brake system and/or described body electronics stabilisation systems coordinate described active brake control module to control together to stop
The work of car module.
Further, described total data communication module is CAN-BUS data communication system.
Further providing the concrete structure of a kind of car light visible light communication module, described car light visible light communication module is also
Including car light visible light communication control module, GPS module and visible data transceiver module, total data communication module, GPS module
It is connected with car light visible light communication control module respectively with visible data transceiver module；Wherein,
Described GPS module is for the positional information of acquisition vehicle in real time；
Described visible data transceiver module is between the vehicle and the transmitting-receiving of vehicle and roadside unit data；
Described visible data transceiver module includes headstock visible data transceiver module and the transmitting-receiving of tailstock visible data
Module；Wherein,
Described headstock visible data transceiver module is carried out with the tailstock visible data transceiver module of road ahead vehicle
Communication；
Described tailstock visible data transceiver module is carried out with the headstock visible data transceiver module of road front vehicle
Communication.
Further providing the concrete structure of a kind of active brake control module, described active brake control module comprises biography
Sensor signal processing module, one-chip computer module, communication module and driving signal processing module, the signal output of described sensor group
End is connected with the signal input part of sensor signal processing module, the signal output part of described sensor signal processing module and list
The signal input part of sheet machine module is connected, and described communication module is connected with one-chip computer module bidirectional data communication, described communication mould
Block is connected with total data communication module, the signal output part of described one-chip computer module and the signal input driving signal processing module
End is connected, and the signal output part of described driving signal processing module is connected with brake module；Wherein,
Described sensor signal processing module passes to list after processing the own parameter information that sensor group is transmitted
Sheet machine module；
Described communication module is for actively communicating between brake control module and total data communication module；
Described one-chip computer module parameter information after processing according to the sensor signal processing module received own
And the running condition information of the vehicle wheel rotational speed information of communication module transmission and surrounding vehicles produces and drives signal to deliver to drive
Signal processing module, thus control the work of brake module.
Further, described one-chip computer module is ARM series monolithic.
Further for reminding driver that actively brake gear is the most in running order, based on car light visible light communication
Actively brake gear also includes effective relay indicating light, described effective relay indicating light by the instrument board control module of vehicle with
Total data communication module is connected, and described active brake control module sends control information to instrument board by total data communication module
Control module controls the light on and off of effective relay indicating light.
Further, described obstacle distance sensor is provided with two, the respectively first range sensor and second distance
Sensor.
Further, described obstacle distance sensor is infrared induction range sensor or ultrasonic distance sensor.
Have employed technique scheme, the present invention has a beneficial effect:
1, this active brake gear uses up-to-date visible light communication technology, and vehicle identification method compares other communication technology more
For practical, simply, accurately and quickly.
2, different road conditions can the most accurately be identified, according to road gradient, coefficient of road adhesion μm ax, fore-aft vehicle
The parameter such as different speeds calculate theoretical safe distance in real time.
3, vehicle is in unsafe condition when, driver can be pointed out, improve the vigilant of driver, it is to avoid
The generation of vehicle accident；
4, actively can brake vehicle is in emergency when, it is to avoid the generation of vehicle accident.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the active brake gear based on car light visible light communication of the present invention.
Detailed description of the invention
It is clearly understood to make present disclosure be easier to, below according to specific embodiment and combine accompanying drawing, right
The present invention is described in further detail.
As it is shown in figure 1, a kind of active brake gear based on car light visible light communication, it includes car light visible light communication mould
Block, actively brake control module and sensor group, car light visible light communication module includes total data communication module, sensor group
Outfan is connected with the signal input part of active brake control module, actively brake control module and total data communication module phase
Even, described sensor group includes wheel vertical load sensor and/or road surface inclination sensor and/or obstacle distance sensor
And/or Wheel cylinder pressure sensors, described active brake control module controls to be connected with the brake module of vehicle, and brake module is used for
Vehicle is braked and makes vehicle deceleration or stopping；Wherein,
Described car light visible light communication module is used for obtaining the running condition information of surrounding vehicles, and by the row of surrounding vehicles
Sail status information and send actively brake control module to by total data communication module；
Described sensor group for sending actively brake control module to by the corresponding own parameter information gathered；
Actively brake control module transmits around according to the vehicle wheel rotational speed information received, car light visible light communication module
The own parameter information that the running condition information of vehicle and sensor group collect controls the work of brake module；
Described road surface inclination sensor measures road gradient in real time, important as calculate vehicular safety distance one
Parameter.
Whether described obstacle distance sensor has barrier in being used for measuring the inswept region of Vehicular turn, and by these data
Pass to described active brake control module；
The mould as it is shown in figure 1, the anti-blocking brake system of vehicle and/or body electronics stabilisation systems communicate with described total data
Block is connected, as it is shown in figure 1, velocity sensor is for measuring the present speed of vehicle, and passes it to anti-blocking brake system
And/or body electronics stabilisation systems；The wheel that described anti-blocking brake system and/or described body electronics stabilisation systems will obtain
Rotary speed information passes to described active brake control module, and described braking anti-lock system by described total data communication module
System and/or described body electronics stabilisation systems coordinate described active brake control module to control the work of brake module together.
Described total data communication module is CAN-BUS data communication system, described CAN-BUS data communication system for from
Obtaining information of vehicles in the interface of vehicle body, pass data to control module, the present embodiment uses CAN interface as vehicle data
Mutual data-interface.This module is mainly by groups such as CAN controller, CAN transceiver, high speed optoelectronic isolating chips
Become.Described CAN-BUS data communication system is the abbreviation of Controller Area Network BUS, is for solving modern vapour
The serial data communication of a kind of ISO International standardization that the data between control numerous in car and test instrunment exchange and develop
Agreement, it is a kind of multi-master bus, and communication media can be twisted-pair feeder, coaxial cable or optical fibers.
As it is shown in figure 1, described car light visible light communication module also includes car light visible light communication control module, GPS module
With visible data transceiver module, total data communication module, GPS module and visible data transceiver module are visible with car light respectively
Optic communication control module is connected；Car light visible light communication module is mainly used in obtaining surrounding vehicles speed, on-position, GPS position
Confidence breaths etc. the information of oneself is sent are carried out for other vehicle of surrounding；Wherein,
Described GPS module is for the positional information of acquisition vehicle in real time；By the position of vehicle when vehicle travels on road
Confidence breath and car light visible light communication address, in the most numerous vehicles, identify before and after this node vehicle is nearest left
Right 4 cars, the present embodiment mainly carries out data interaction to 4 cars of this node vehicle periphery by car light visible light communication module.
The GPS module of the present embodiment is multi-functional self reliance type GPS module, framework based on ROM, uses u-blox up-to-date
KickStart small-signal seizes technology, can ensure that the equipment using this module in any position receiving signal and is appointed
What antenna size can have optimal initial alignment performance and quickly position.Can synchronous tracking GPS and Galileo navigation
Satellite-signal, arranges multiple interfaces: UART, USB, I2C, SPI.Module arranges backup battery, uses chargeable twist button battery, after
Standby battery can preserve current information after GPS module power-off, is again started up GPS module and can realize quickly positioning；
Described visible data transceiver module is between the vehicle and the transmitting-receiving of vehicle and roadside unit data；
Described visible data transceiver module includes headstock visible data transceiver module and the transmitting-receiving of tailstock visible data
Module；Wherein,
Described headstock visible data transceiver module is carried out with the tailstock visible data transceiver module of road ahead vehicle
Communication；
Described tailstock visible data transceiver module is carried out with the headstock visible data transceiver module of road front vehicle
Communication.
The specific works principle of visible data transceiver module is as follows:
At transmitting terminal, base band data is sent in transmission equipment by power line, and the modulation light that LED light source sends is with the biggest
Angle of divergence one way or another propagate.And at receiving terminal, utilize PD to receive optical signal, complete the conversion of optical electrical signal, finally solve
Turn the signal of telecommunication changed and output it.The main task of photoreceiver is with minimum additional noise and distortion, recovers
Go out the information entrained by light carrier after transmitting via wireless optical channel.
The signal of transmission is added on unidirectional current and is sent in the LED device of headstock or the tailstock by power line.Carry
Ripple is divided into two-way before entering LED car lamp, and a road is for the illumination of LED.Separately lead up to band filter (BPF), separate
Go out the signal of communication of transmission, for modulating and controlling the luminous strong and weak with the optical carrier after formation modulation of LED.Due to transmission
The frequency of signal is sufficiently high, and human eye does not feels as light and shade or the light on and off of LED car lamp light intensity, so having no effect on the effect of illumination
Really.Then, light carrier enters the channel of radio communication, and the light carrier that LED car lamp sends is received by the PD of mobile terminal, receiver
It is demodulated signal waiting processing and recovers the original baseband signal sent.
Described car light visible light communication control module is connected to the modules of car light visible light communication module, for each
The process of module data, car light visible light communication control module needs to control bluetooth module, it is seen that light data transmit-receive module, GPS
Other module such as module, car light visible light communication control module uses flush bonding processor to build car light visible light communication unit
Control module.
Described active brake control module comprises sensor signal processing module, one-chip computer module, communication module and driving
Signal processing module, the signal output part of described sensor group is connected with the signal input part of sensor signal processing module, institute
The signal input part of the signal output part and one-chip computer module of stating sensor signal processing module is connected, described communication module and list
Sheet machine module bidirectional data communication connects, and described communication module is connected with total data communication module, the letter of described one-chip computer module
Number outfan is connected with the signal input part driving signal processing module, the signal output part of described driving signal processing module and
Brake module is connected；Wherein,
Described sensor signal processing module passes to list after processing the own parameter information that sensor group is transmitted
Sheet machine module；The sensor signal (parameter information own) of input one-chip computer module is mainly carried out by sensor signal processing module
Shield, isolate, convert, filter, amplify, decay, the suppression of noise and A/D conversion etc. process；
Described communication module is for actively communicating between brake control module and total data communication module；
Described one-chip computer module parameter information after processing according to the sensor signal processing module received own
And the running condition information of the vehicle wheel rotational speed information of communication module transmission and surrounding vehicles produces and drives signal to deliver to drive
Signal processing module, thus control the work of brake module.
Described one-chip computer module is ARM series monolithic, such as single-chip microcomputer S3C2440.
As it is shown in figure 1, active brake gear based on car light visible light communication also includes effective relay indicating light, effective work
May be located on Vehicular instrument panel as display lamp, described effective relay indicating light is by the instrument board control module of vehicle and sum
Being connected according to communication module, described active brake control module sends control information to instrument board control by total data communication module
Module controls the light on and off of effective relay indicating light；Effective relay indicating light when this active brake gear is braked operation
Can light.
Described obstacle distance sensor is provided with two, the respectively first range sensor and second distance sensor.
Described obstacle distance sensor is infrared induction range sensor or ultrasonic distance sensor.
Being connected by between described active brake control module and sensor group is electrically connected, actively brake control module
And the connection between other system controller such as ESP, EPS, ABS system controller uses CAN-BUS to communicate, but above-mentioned
Connect and be not limited to electrical connection or CAN-BUS connection.
This active brake gear utilizes car light visible light communication to make vehicle intercommunication, obtains surrounding vehicles information,
To speed, the GPS geographical position of present invention needs, increase road surface inclination sensor, Wheel cylinder pressure sensors, wheel vertical load
Sensor, utilizes control algolithm to draw coefficient of road adhesion μm ax, so that actively brake control module obtains more accurate
Safe distance, makes actively brake gear can be operated in different road gradient, different coefficients of road adhesion, and different speeds etc. travel
Under situation, substantially increase reliability, safety and stability.
Such as, when vehicle present speed is 80 kilometers/hour, this car passes through car light visible light communication module and front vehicles
Communicate, it is thus achieved that the GPS information of front vehicles and NID, compare that GPS records further with front vehicles distance
LGPSWith data L recorded by the first range sensor and second distance sensorDContrast, if 1. LGPSWith LDIdentical
Then illustrate not have between the front truck of this car and networking other can not the vehicle of networking, barrier or pedestrian.Further, before obtaining
Car present speed is 75 kilometers/hour, road surface inclination sensor obtaining road gradient is 5 °, based on μ-s Model Identification road surface
Attachment coefficient μmax, further, according to front vehicle speed, rear vehicle speed, road gradient, coefficient of road adhesion μmaxCalculate current 2
The safe distance Ls of car is 54m, if LDMore than LSI.e. 54m, then brakes does not take any action；If LDLess than LS, then
Brakes takes action, makes vehicle deceleration or parking, until LDMore than or equal to LSOr stop, having on Vehicular instrument panel
Effect action indicator can flash.If 2. LGPSWith LDDiffer, illustrate to have between the front truck of this car and networking other can not
The vehicle of networking, barrier or pedestrian.Being obtained road gradient by road surface inclination sensor is 5 °, based on μ-s Model Identification road
Face attachment coefficient μm ax, further, calculates and front vehicles according to this vehicle speed, road gradient, coefficient of road adhesion μm ax
Or vehicle is 60m with the safe distance Ls of barrier, if LD is more than LS i.e. 60m, then brakes does not take any action；
If LD is less than LS, then brakes takes action, makes vehicle deceleration or parking, until LD is more than or equal to LS or parking,
Effective action display lamp on Vehicular instrument panel can flash.
The difference of above-mentioned 2 kinds of situations is that safe distance is different, and the 1st kind does not has a barrier between situation and front vehicles, 2
Car can communicate, and makes theory α coefficient distance between 2 cars diminish, makes full use of road；2nd kind has barrier between situation and front vehicles
Hinder thing or other vehicle that can not communicate, make theory α coefficient distance between Ben Che with barrier or other vehicle that can not communicate become
Greatly.Above 2 kinds of situations all make vehicle improve safety.
Particular embodiments described above, to present invention solves the technical problem that, technical scheme and beneficial effect carry out
Further describe, be it should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to this
Invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included in this
Within bright protection domain.
Claims (10)
1. an active brake gear based on car light visible light communication, it is characterised in that: it includes car light visible light communication mould
Block, actively brake control module and sensor group, car light visible light communication module includes total data communication module, sensor group
Outfan is connected with the signal input part of active brake control module, actively brake control module and total data communication module phase
Even, described sensor group includes wheel vertical load sensor and/or road surface inclination sensor and/or obstacle distance sensor
And/or Wheel cylinder pressure sensors, described active brake control module controls to be connected with the brake module of vehicle；Wherein,
Described car light visible light communication module is used for obtaining the running condition information of surrounding vehicles, and by the traveling shape of surrounding vehicles
State information sends actively brake control module to by total data communication module；
Described sensor group for sending actively brake control module to by the corresponding own parameter information gathered；
Actively brake control module is according to the vehicle wheel rotational speed information received, the surrounding vehicles of car light visible light communication module transmission
Running condition information and the parameter information that collects of sensor group own control the work of brake module.
Active brake gear based on car light visible light communication the most according to claim 1, it is characterised in that: the system of vehicle
Dynamic anti-lock braking system and/or body electronics stabilisation systems are connected with described total data communication module, described anti-blocking brake system
And/or the vehicle wheel rotational speed information obtained is passed to described by described body electronics stabilisation systems by described total data communication module
Actively brake control module, and described anti-blocking brake system and/or described body electronics stabilisation systems coordinate described active
Brake control module controls the work of brake module together.
Active brake gear based on car light visible light communication the most according to claim 1, it is characterised in that: described sum
It is CAN-BUS data communication system according to communication module.
Active brake gear based on car light visible light communication the most according to claim 1, it is characterised in that: described car light
Visible light communication module also includes car light visible light communication control module, GPS module and visible data transceiver module, total data
Communication module, GPS module are connected with car light visible light communication control module respectively with visible data transceiver module；Wherein,
Described GPS module is for the positional information of acquisition vehicle in real time；
Described visible data transceiver module is between the vehicle and the transmitting-receiving of vehicle and roadside unit data.
Active brake gear based on car light visible light communication the most according to claim 4, it is characterised in that: described visible
Light data transmit-receive module includes headstock visible data transceiver module and tailstock visible data transceiver module；Wherein,
Described headstock visible data transceiver module communicates with the tailstock visible data transceiver module of road ahead vehicle；
Described tailstock visible data transceiver module leads to the headstock visible data transceiver module of road front vehicle
Letter.
Active brake gear based on car light visible light communication the most according to claim 1, it is characterised in that: described active
Brake control module comprises sensor signal processing module, one-chip computer module, communication module and driving signal processing module, described
The signal output part of sensor group is connected with the signal input part of sensor signal processing module, and described sensor signal processes mould
The signal output part of block is connected with the signal input part of one-chip computer module, and described communication module is led to one-chip computer module bi-directional data
Letter connects, and described communication module is connected with total data communication module, the signal output part of described one-chip computer module and driving signal
The signal input part of processing module is connected, and the signal output part of described driving signal processing module is connected with brake module；Wherein,
Described sensor signal processing module passes to single-chip microcomputer after processing the own parameter information that sensor group is transmitted
Module；
Described communication module is for actively communicating between brake control module and total data communication module；
Described one-chip computer module parameter information after processing according to the sensor signal processing module that receives own and
The vehicle wheel rotational speed information of communication module transmission and the running condition information of surrounding vehicles produce and drive signal to deliver to drive signal
Processing module, thus control the work of brake module.
Active brake gear based on car light visible light communication the most according to claim 6, it is characterised in that: described monolithic
Machine module is ARM series monolithic.
Active brake gear based on car light visible light communication the most according to claim 1, it is characterised in that: also include
Effect relay indicating light, described effective relay indicating light is connected with total data communication module by the instrument board control module of vehicle,
Described active brake control module sends control information by total data communication module and controls effectively to instrument board control module
The light on and off of relay indicating light.
Active brake gear based on car light visible light communication the most according to claim 1, it is characterised in that: described obstacle
Thing range sensor is provided with two, the respectively first range sensor and second distance sensor.
Active brake gear based on car light visible light communication the most according to claim 1, it is characterised in that: described barrier
Hindering thing range sensor is infrared induction range sensor or ultrasonic distance sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610696982.1A CN106314401A (en) | 2016-08-19 | 2016-08-19 | Active braking device based on vehicle lamp visible light communication |
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| CN201610696982.1A CN106314401A (en) | 2016-08-19 | 2016-08-19 | Active braking device based on vehicle lamp visible light communication |
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| CN106314401A true CN106314401A (en) | 2017-01-11 |
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| CN201610696982.1A Pending CN106314401A (en) | 2016-08-19 | 2016-08-19 | Active braking device based on vehicle lamp visible light communication |
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| CN107719345A (en) * | 2017-08-30 | 2018-02-23 | 江苏理工学院 | A kind of active brake method based on car light visible light communication |
| CN110581734A (en) * | 2019-10-11 | 2019-12-17 | 格利尔数码科技股份有限公司 | LED wireless optical communication data transmission system between front and rear vehicles |
| CN115416628A (en) * | 2022-08-25 | 2022-12-02 | 深圳市蓝度汽车电控技术有限公司 | Brake control method, device, equipment and computer readable storage medium |
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