CN108766032A - A kind of highway automobile anticollision prior-warning device - Google Patents
A kind of highway automobile anticollision prior-warning device Download PDFInfo
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- CN108766032A CN108766032A CN201810550021.9A CN201810550021A CN108766032A CN 108766032 A CN108766032 A CN 108766032A CN 201810550021 A CN201810550021 A CN 201810550021A CN 108766032 A CN108766032 A CN 108766032A
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/165—Anti-collision systems for passive traffic, e.g. including static obstacles, trees
Abstract
The invention discloses a kind of highway automobile anticollision prior-warning devices, including the automobile for being installed with car-mounted terminal and the power grid for being layed in highway along side, and multiple Cloud Servers for monitoring substations and being connect with the car-mounted terminal by network communicating system, wherein, the monitoring substation includes GPS monitoring units and information receiving unit, the GPS monitoring units are connect with described information receiving unit, described information receiving unit is connect with the Cloud Server, the car-mounted terminal include information processing and controlling unit and respectively with described information processing and the sensor assembly that connect of control unit, laser projection device, information display module, storage module, execution module and warning module.The present invention can drive over the speed limit in driver or fatigue travels and there are effective security protection is provided when vehicle blind zone, can evade or reduce personal injury and property loss that accident is brought, the normal safety traffic of support vehicles.
Description
Technical field
The present invention relates to automobile collision preventing technical field, specially a kind of highway automobile anticollision prior-warning device.
Background technology
With the development of economy, the improvement of people's living standards, the people for more coming big and medium-sized cities the more generate automobile
Keen interest.Automobile is to increase year by year, and the trouble and problem brought to us often block up, warp with regard to following
Serious traffic accident often occurs, for the vehicle of traveling on a highway, the person to people and property peace
Great threat is constituted entirely.The traffic accident in China is all increasing every year in last decade, every year on average up to 600000,
Death toll is more than 100000 people, and wherein automobile is handed over caused by the bad steering of driver custom or unexpected factors
There are many interpreter's event, such as have little time collision accident caused by slowing down, according to incomplete with front truck or other vehicle hypotelorism due to hypervelocity
Statistics dies of traffic accident number and alreadys exceed 100,000 every year, and the traffic accident caused by hypervelocity accounts for traffic accident sum
30% or more, since large quantities of Getting Started ignore traffic sign, usually because hypervelocity has little time brake and causes traffic accident, fatigue
It drives, absent minded caused vehicle collision accident is also no longer a small number of, on the other hand, since automobile is during traveling
There are blind area, have little time to slow down or avoid to lead to serious traffic accident.These traffic accidents occurred have seriously endangered friendship
The safety of life and property of logical participant, can also cause a series of social concerns.Existing running car corollary system and automobile
System lacks active automatic Protection, and there is also deficiencies for the counter-measure to driving over the speed limit, in terms of vehicle blind zone, cannot be effective
Play the role of security protection, the normal safety traffic of support vehicles.
Invention content
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of highway automobile anticollision prior-warning device, solves
Running car corollary system and automotive system lack active automatic Protection, the reply to driving over the speed limit, in terms of vehicle blind zone
The problem of measure Shortcomings, cannot effectively play the role of security protection, the normal safety traffic of support vehicles.
(2) technical solution
To achieve the above object, the present invention provides the following technical solutions:A kind of highway automobile anticollision prior-warning device,
Including the automobile for being installed with car-mounted terminal and the power grid for being layed in highway along side, and:
Long distance service system, environmental information and correspondence for receiving and arranging the highway are sent to described vehicle-mounted
Terminal comprising:
Multiple monitoring substations, multiple monitoring substations include corresponding GPS monitoring units and information receiving unit, institute
It states GPS monitoring units to connect with described information receiving unit, multiple GPS monitoring units are powered and are spaced by the power grid
The highway is installed in along side, the GPS monitoring units are used to acquire the environment letter on each section of the highway
Breath, described information receiving unit is for receiving the environmental information acquired by the GPS monitoring units;
Cloud Server is connect with described information receiving unit, for receiving and arranging each monitoring substation acquisition
With the environmental information of the highway respective stretch, the Cloud Server is connected by network communication module and the car-mounted terminal
It connects:
The car-mounted terminal includes coming from the remote service system by what the network communication module transmitted for handling
The environmental information acquired of uniting and the information processing and controlling unit that control instruction is made to vehicle-mounted each module, and:
Sensor assembly is connect with described information processing and control unit, is used for the travel speed to the automobile, with before
The relative velocity and spacing and peripheral obstacle of vehicle are detected;
Laser projection device connect with described information processing and control unit, be used for the vehicle body blind area of the automobile and
Barrier in blind area is detected;
Information display module, with described information processing and control unit connect, be used for will by the long distance service system,
The data that the sensor assembly and the laser projection device detect are shown, the debugging in order to equipment and driver
Judge safe condition;
Storage module connect with described information processing and control unit, and being used for will be by the long distance service system, described
The data that sensor assembly and the laser projection device detect are stored;
Execution module is connect with described information processing and control unit, for when the long distance service system, the sensing
The data that device module and the laser projection device detect are more than the critical value of default, and driver does not make braking deceleration
When equal measures, is handled by described information and control unit active brake is slowed down;
Warning module is connect with described information processing and control unit, for when the long distance service system, the sensing
The data that device module and the laser projection device detect are more than the critical value of default, and driver does not make braking deceleration
When equal measures, sound-light alarm is carried out, driver is reminded to make corresponding counter-measure.
Preferably, the distance between adjacent two described GPS monitoring units are equal and are correspondingly arranged in the high speed public affairs
The crowded section of highway on road or the traffic accident its spacing in location that takes place frequently are 100~150m.
Preferably, the distance between adjacent two described GPS monitoring units are equal and are correspondingly arranged in the high speed public affairs
It is 150~300m that its spacing in location is sent out in the sparse location of vehicle on road or traffic accident less.
Preferably, the sensor assembly includes the multiple ultrasonic waves being connect respectively with described information processing and control unit
Sensor and multiple infrared sensors.
Preferably, the ultrasonic sensor is provided with 4 and is symmetrically disposed on the forward and backward bumper of the automobile two-by-two
On, the infrared sensor is provided with 4 and is symmetrically disposed on the body of a motor car both sides two-by-two, wherein before the automobile,
It is provided with radar sensor, the radar sensor on rear bumper and between two adjacent ultrasonic sensors
It is connect with described information processing and control unit.
Preferably, described information display module include respectively with described information processing and control unit connect it is touch
LED liquid crystal displays and function key group.
Preferably, the execution module include with described information processing and the pedal-driven module that connect of control unit and
By the pedal of the pedal-driven module drive, the pedal-driven module includes connecting the pedal-driven motor of the pedal
And a brake pedal sensor being connect with described information processing and control unit, the brake pedal sensor is for examining
It surveys when the data detected by the long distance service system, the sensor assembly and the laser projection device are more than system
When the critical value of setting, whether driver makes corresponding retarding braking measure, to judge whether need system under precarious position
Automatic braking or alarm.
Preferably, the warning module includes the warning light being connect respectively with information processing and controlling unit and intelligence
Voice cue module.
Preferably, the intelligent voice prompt module uses Intelligent speech prompting apparatus.
(3) advantageous effect
The present invention provides a kind of highway automobile anticollision prior-warning devices, by the way that long distance service system is arranged, i.e., logical
It crosses and multiple monitoring substations is set along side interval in highway, the power grid being arranged along side by highway is powered work,
Real time environmental data acquisition is carried out to freeway by monitoring GPS monitoring units in substation, through information receiving unit
Cloud Server is received and be transferred to, unified calculation arrangement is carried out by Cloud Server, the data information of arrangement is passed through into network communication
Module transfer gives the car-mounted terminal of each automobile, is set by the cooperation of sensor assembly in car-mounted terminal and laser projection device
It sets, by relative velocity and spacing, the peripheral obstacle and automobile by each detection module to the travel speed of automobile, with front truck
The information of blind area acquisition is transferred to information processing and controlling unit, is carried out data processing by information processing and controlling unit and is controlled
Information display module is shown that when critical value of the data detected more than default, and driver does not make braking and subtracts
It is pre- by controlling execution module progress active brake deceleration and carrying out acousto-optic to driver by warning module when the measures such as speed
It is alert, meanwhile, during travelling on a highway, especially in the haze or sleety weather for being unfavorable for vehicle traveling, when certain
The monitoring substation in a location detects that the location occurs accident or blocking up, and is received by information receiving unit and passes information
It is defeated to carry out calculating arrangement to Cloud Server, the car terminals of the location back segment driving vehicle are transferred to by network communication module,
Information display unit is controlled by information processing and controlling unit show and give warning in advance by warning module, is prevented
Because rear-end collision occurs for absent minded or hypervelocity, the normal safety traffic of support vehicles, the present invention can be super in driver
Speed traveling or fatigue travel and there are effective security protection is provided when vehicle blind zone, can evade or reduce what accident was brought
Personal injury and property loss effectively play the role of security protection, the normal safety traffic of support vehicles.
Description of the drawings
Fig. 1 is the system principle diagram of the present invention;
Fig. 2 is the functional block diagram of medium-long range service system of the present invention;
Fig. 3 is the functional block diagram of car-mounted terminal in the present invention;
Fig. 4 is the schematic diagram of high speed highway of the present invention, power grid and automobile;
Fig. 5 is the structural schematic diagram of automobile in the present invention.
In figure:1, car-mounted terminal;2, automobile;3, highway;4, power grid;5, long distance service system;6, substation is monitored;7,
GPS monitoring units;8, information receiving unit;9, Cloud Server;10, network communication module;11, information processing and controlling unit;
12, sensor assembly;13, laser projection device;14, information display module;15, storage module;16, execution module;17, early warning
Module;18, ultrasonic sensor;19, infrared sensor;20, radar sensor;21, pedal-driven module;22, pedal;23,
Warning light;24, intelligent voice prompt module.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs. 1-5, the present invention provides a kind of technical solution:A kind of highway automobile anticollision prior-warning device, packet
The automobile 2 for being installed with car-mounted terminal 1 and the power grid 4 for being layed in highway 3 along side are included, and:
Long distance service system 5, environmental information and correspondence for receiving and arranging the highway 3 are sent to the vehicle
Mounted terminal 1 comprising:
Multiple monitoring substations 6, multiple monitoring substations 6 include corresponding GPS monitoring units 7 and information receiving unit
8, the GPS monitoring units 7 are connect with described information receiving unit 8, and multiple GPS monitoring units 7 are supplied by the power grid 4
Electricity and interval are installed in the highway 3 along side, and the GPS monitoring units 7 are for acquiring 3 each section of the highway
On environmental information, described information receiving unit 8 is for receiving the environmental information acquired by the GPS monitoring units 7;
Cloud Server 9 is connect with described information receiving unit 8, is acquired for receiving and arranging each monitoring substation 6
The environmental information with 3 respective stretch of the highway, the Cloud Server 9 by network communication module 10 with it is described vehicle-mounted
Terminal 1 connects:
The car-mounted terminal 1 includes coming from the remote service by what the network communication module 10 transmitted for handling
The environmental information of the acquisition of system 5 and the information processing and controlling unit 11 that control instruction is made to vehicle-mounted each module, and:
Sensor assembly 12 is connect with described information processing and control unit 11, for the traveling speed to the automobile 2
Degree is detected with the relative velocity of front truck and spacing and peripheral obstacle;
Laser projection device 13 is connect with described information processing and control unit 11, for blind to the vehicle body of the automobile 2
Barrier in area and blind area is detected;
Information display module 14 is connect with described information processing and control unit 11, for that will pass through the remote service
The data that system 5, the sensor assembly 12 and the laser projection device 13 detect are shown, in order to the tune of equipment
Examination and driver judge safe condition;
Storage module 15 is connect with described information processing and control unit 11, for that will pass through the long distance service system
5, the data that the sensor assembly 12 and the laser projection device 13 detect are stored;
Execution module 16 is connect with described information processing and control unit 11, for when the long distance service system 5, institute
It states sensor assembly 12 and data that the laser projection device 13 detects is more than the critical value of default, driver does not do
When going out the measures such as braking deceleration, is handled by described information and 11 active brake of control unit is slowed down;
Warning module 17 is connect with described information processing and control unit 11, for when the long distance service system 5, institute
It states sensor assembly 12 and data that the laser projection device 13 detects is more than the critical value of default, driver does not do
When going out the measures such as braking deceleration, sound-light alarm is carried out, driver is reminded to make corresponding counter-measure.
For tool, the distance between adjacent two described GPS monitoring units 7 are equal and are correspondingly arranged in the high speed
The crowded section of highway of highway 3 or the traffic accident its spacing in location that takes place frequently are 100~150m, adjacent two GPS monitoring units 7 it
Between distance it is equal and be correspondingly arranged in the sparse location of the vehicle of the highway 3 or traffic accident sends out its spacing in location and is less
The different spacing of 150~300m, GPS monitoring unit 7 correspond to the setting in heterogeneity location, are conducive to the reasonable integration of resource, protect
It has demonstrate,proved and highway 3 has been monitored in real time, it is especially unfavorable in haze etc. when accident occurs for certain location of highway 3 or congestion occurs
When layman's weather middle rolling car, it can shift to an earlier date to driver and send out early warning, remind driver to focus on, carry out emergency measure,
Prevent vehicle collision, effective guarantee traffic safety;The sensor assembly 12 include respectively with described information processing and
The multiple ultrasonic sensors 18 and multiple infrared sensors 19, the ultrasonic sensor 18 that control unit 11 connects are provided with
It 4 and is symmetrically disposed on two-by-two on the forward and backward bumper of the automobile 2, the infrared sensor 19 is provided with 4 and right two-by-two
Title is set to 2 vehicle body both sides of the automobile, wherein on the forward and backward bumper of the automobile 2 and described super positioned at adjacent two
Radar sensor 20 is provided between sonic sensor 18, the radar sensor 20 is handled with described information and control unit 11
Connection, each sensor combinations side on setting forward and backward by vehicle body, to the travel speed of the automobile 2, with the phase of front truck
Speed and spacing and peripheral obstacle are detected, the precision of detection data is ensure that, has greatly ensured vehicle safety;
Described information display module 14 includes the touch LED liquid crystal displays being connect respectively with described information processing and control unit 11
And function key group, it can be clearly indicated by information processing and controlling unit by the way that touch LED liquid crystal displays are arranged
The periphery of 11 feedbacks and front and back environmental information, facilitate driver to make the measure of successfully managing in advance, improve the safety of driving
Property, by key group " switching " or " confirmation " information, it is conveniently operated;The execution module 16 includes and described information is handled and controlled
The pedal-driven module 21 and the pedal 22 driven by the pedal-driven module 21 that unit 11 processed connects, the pedal drive
Dynamic model block 21 is handled with described information including the pedal-driven motor and one for connecting the pedal 22 and control unit 11 connects
The brake pedal sensor connect, the brake pedal sensor pass through the long distance service system 5, the sensing for detecting to work as
When the data that device module 12 and the laser projection device 13 detect are more than the critical value of default, whether driver makes
Corresponding retarding braking measure passes through pedal-driven mould to judge whether need system automatic braking or alarm under precarious position
21 active brake pedal 22 of block slows down, and the travel speed of automobile 2 is controlled within the scope of safe velocity, is conducive to
Evade or reduce the injury of contingency under driver tired driving or scatterbrained state;The warning module 17 wraps
Include the warning light 23 being connect respectively with described information processing and control unit 11 and intelligent voice prompt module 24, the intelligence
Energy voice cue module 24 uses Intelligent speech prompting apparatus.
On the other hand, described information processing and control unit 11 include message processing module and control module, wherein described
Message processing module uses dsp chip DSP56800E, the control module to use microcontroller MC9S12XS128.
When concrete application, by the way that long distance service system 5 is arranged, i.e., by the way that multiple prisons are arranged along side interval in highway 3
Substation 6 is controlled, the power grid 4 being arranged along side by highway 3 is powered work, by monitoring GPS monitoring units 7 in substation 6
Real time environmental data acquisition is carried out to 3 each section of highway, is received through information receiving unit 8 and is transferred to Cloud Server 9, by
Cloud Server 9 carries out unified calculation arrangement, and the data information of arrangement is transferred to each automobile 2 by network communication module 10
Car-mounted terminal 1 will pass through each detection by being equipped with for sensor assembly 12 in car-mounted terminal 1 and laser projection device 13
The letter that module acquires the travel speed of automobile 2 and relative velocity and spacing, the peripheral obstacle and 2 blind area of automobile of front truck
Breath is transferred to information processing and controlling unit 11, carries out data processing by information processing and controlling unit 11 and controls presentation of information
Module 14 is shown that when critical value of the data detected more than default, and driver does not make braking deceleration etc. and arranges
Shi Shi, it is pre- by controlling the progress active brake deceleration of execution module 16 and carrying out acousto-optic to driver by warning module 17
It is alert, meanwhile, during being travelled on highway 3, especially in the haze or sleety weather for being unfavorable for vehicle traveling, when certain
The monitoring substation 6 in a location detects that the location occurs accident or blocking up, and is received by information receiving unit 8 and by information
It is transferred to Cloud Server 9 and carries out calculating arrangement, the automobile 2 of the location back segment driving vehicle is transferred to by network communication module 10
Car terminal controls information display unit by information processing and controlling unit and show and carried by warning module
Preceding early warning prevents that rear-end collision, the normal safety traffic of support vehicles occurs because of absent minded or hypervelocity.
It can to sum up obtain, the present invention can drive over the speed limit in driver or fatigue travels and there are be provided with when vehicle blind zone
The security protection of effect can evade or reduce personal injury and property loss that accident is brought, effectively play security protection
Effect, the normal safety traffic of support vehicles.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended, it should be noted that the electric appliance occurred in this article
Element is electrically connected with extraneous main controller and 220V alternating currents, and main controller can be that computer etc. plays the conventionally known of control
Equipment.
Claims (9)
1. a kind of highway automobile anticollision prior-warning device, which is characterized in that the automobile including being installed with car-mounted terminal (1)
(2) and it is layed in power grid (4) of the highway (3) along side, and:
Long distance service system (5), environmental information and correspondence for receiving and arranging the highway (3) are sent to the vehicle
Mounted terminal (1) comprising:
Multiple monitoring substations (6), multiple monitoring substations (6) include that corresponding GPS monitoring units (7) and information receive list
First (8), the GPS monitoring units (7) connect with described information receiving unit (8), and multiple GPS monitoring units (7) pass through
The power grid (4), which is powered and is spaced, is installed in the highway (3) along side, and the GPS monitoring units (7) are described for acquiring
Environmental information on highway (3) each section, described information receiving unit (8) are single by GPS monitoring for receiving
The environmental information of first (7) acquisition;
Cloud Server (9) is connect with described information receiving unit (8), is adopted for receiving and arranging each monitoring substation (6)
Collection the environmental information with the highway (3) respective stretch, the Cloud Server (9) by network communication module (10) with
Car-mounted terminal (1) connection:
The car-mounted terminal (1) includes coming from the remote service by what the network communication module (10) transmitted for handling
The environmental information of system (5) acquisition and the information processing and controlling unit (11) that control instruction is made to vehicle-mounted each module, with
And:
Sensor assembly (12) is connect with described information processing and control unit (11), for the traveling speed to the automobile (2)
Degree is detected with the relative velocity of front truck and spacing and peripheral obstacle;
Laser projection device (13) is connect with described information processing and control unit (11), for the vehicle body to the automobile (2)
Barrier in blind area and blind area is detected;
Information display module (14) is connect with described information processing and control unit (11), for that will pass through the remote service
The data that system (5), the sensor assembly (12) and the laser projection device (13) detect are shown, in order to set
Standby debugging and driver judge safe condition;
Storage module (15) is connect with described information processing and control unit (11), for that will pass through the long distance service system
(5), the data that the sensor assembly (12) and the laser projection device (13) detect are stored;
Execution module (16), with described information processing and control unit (11) connect, for work as the long distance service system (5),
The data that the sensor assembly (12) and the laser projection device (13) detect are more than the critical value of default, drive
When member does not make the measures such as braking deceleration, is handled by described information and control unit (11) active brake is slowed down;
Warning module (17), with described information processing and control unit (11) connect, for work as the long distance service system (5),
The data that the sensor assembly (12) and the laser projection device (13) detect are more than the critical value of default, drive
When member does not make the measures such as braking deceleration, sound-light alarm is carried out, driver is reminded to make corresponding counter-measure.
2. a kind of highway automobile anticollision prior-warning device according to claim 1, it is characterised in that:Adjacent two
The distance between the GPS monitoring units (7) are equal and crowded section of highway that be correspondingly arranged in the highway (3) or traffic accident frequency
It is 100~150m to send out its spacing in location.
3. a kind of highway automobile anticollision prior-warning device according to claim 1, it is characterised in that:Adjacent two
The distance between the GPS monitoring units (7) are equal and are correspondingly arranged in the sparse location of vehicle of the highway (3) or vehicle
It is 150~300m that misfortune sends out its spacing in location less.
4. a kind of highway automobile anticollision prior-warning device according to claim 1, it is characterised in that:The sensor
Module (12) include respectively with described information processing and multiple ultrasonic sensors (18) for connecting of control unit (11) and multiple
Infrared sensor (19).
5. a kind of highway automobile anticollision prior-warning device according to claim 4, it is characterised in that:The ultrasonic wave
Sensor (18) is provided with 4 and is symmetrically disposed on two-by-two on the forward and backward bumper of the automobile (2), the infrared sensor
(19) 4 are provided with and is symmetrically disposed on the automobile (2) vehicle body both sides two-by-two, wherein the forward and backward insurance of the automobile (2)
Radar sensor (20), the radar sensing are provided on thick stick and between two adjacent ultrasonic sensors (18)
Device (20) is connect with described information processing and control unit (11).
6. a kind of highway automobile anticollision prior-warning device according to claim 1, it is characterised in that:Described information is aobvious
Show that module (14) includes the touch LED liquid crystal displays and work(being connect respectively with described information processing and control unit (11)
It can key group.
7. a kind of highway automobile anticollision prior-warning device according to claim 1, it is characterised in that:The execution mould
Block (16) includes with described information processing and the pedal-driven module (21) that connect of control unit (11) and by the pedal
The pedal (22) of drive module (21) driving, the pedal-driven module (21) include the pedal-driven for connecting the pedal (22)
Motor and a brake pedal sensor being connect with described information processing and control unit (11), the brake pedal sensing
Device passes through the long distance service system (5), the sensor assembly (12) and the laser projection device (13) for detecting to work as
When the data detected are more than the critical value of default, whether driver makes corresponding retarding braking measure, to judge to endanger
Whether system automatic braking or alarm are needed under dangerous state.
8. a kind of highway automobile anticollision prior-warning device according to claim 1, it is characterised in that:The early warning mould
Block (17) includes the warning light (23) and intelligent voice prompt being connect respectively with described information processing and control unit (11)
Module (24).
9. a kind of highway automobile anticollision prior-warning device according to claim 8, it is characterised in that:The intelligence language
Sound reminding module (24) uses Intelligent speech prompting apparatus.
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CN114228639A (en) * | 2021-12-23 | 2022-03-25 | 东莞市中港通电子科技有限公司 | Early warning danger avoiding device and method for dead zone of cart |
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Application publication date: 20181106 |