CN206431834U - A kind of sharp road turn/abrupt slope suggestion device - Google Patents
A kind of sharp road turn/abrupt slope suggestion device Download PDFInfo
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- CN206431834U CN206431834U CN201720019321.5U CN201720019321U CN206431834U CN 206431834 U CN206431834 U CN 206431834U CN 201720019321 U CN201720019321 U CN 201720019321U CN 206431834 U CN206431834 U CN 206431834U
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Abstract
The utility model discloses a kind of sharp road turn/abrupt slope suggestion device, the device includes signal pickup assembly and signal prompt device, signal pickup assembly is by the information transmission collected to central controller, signal after processing is converted into signal instruction and is sent to suggestion device by central controller, and corresponding prompting is made in the instruction that signal prompt device is sent according to central controller.The situation of the suggestion device vehicle of prompting vehicle opposite road and pedestrian at road zig zag or abrupt slope, and intelligent judgement can be made by the information collected, facilitate dredging for turning vehicle.
Description
Technical field
The utility model belongs to traffic safety facilities field, for vehicle detection at sharp road turn/abrupt slope and dredging
A kind of prompting, and in particular to sharp road turn/abrupt slope suggestion device.
Background technology
With the continuous progressive and development of society, the traffic engineering in city has been technology that is more and more perfect, being used
Means are also increasingly advanced, so the traffic safety factor in overall city has been obtained for very big raising.But for rural area
Or the traffic safety problem of the road in the road of outside the city especially mountain area, because road conditions are constantly improved, speed is very fast
Etc. reason, often due to can't see the situation of other side, often there is traffic accident in the sharp turn in mountain pass or mountain village.In order to
Avoid the sharp turn in mountain pass or mountain village from accident occur, be typically now all bend vertex position set one it is reflective
Mirror, allows driver to see whether the other side of bend has vehicle come to be prevented as early as possible by reflective mirror.But it is this curved
Road reflective mirror in misty rain weather, or it is long-term do not clean in the state of can not understand the situation that reflect opposite, still can go out
Existing traffic problems.Especially this road reflecting mirror is also easy to be damaged after installing, so many places are not installed；Such as
What solves the traffic safety problem of mountain pass or sky way sharp turn, and being current one is worth the problem of research.
Find there are some Patents documents to report by the domestic Searches of Patent Literature, mainly have following some：
1st, Patent No. CN201020219521.3, a kind of entitled " Warning for vehicle dress at crossing of being taken a sudden turn for highway
Put " utility model patent, the patent is related to a kind of vehicle warning device at crossing of being taken a sudden turn for highway, including the electric conversion group of power
Part, electric energy processing assembly and electronic display.Wherein power electricity transition components An Zhuanyu highways take a sudden turn crossing porch, electronics
Display screen is installed on the exit at highway zig zag crossing.The kinetic energy of driving vehicle is converted to electric energy by power electricity transition components；Electricity
Energy processing assembly, which is converted to the alternating current that the electric transition components of power are produced, can persistently light the direct current of electronic display；Electronics
Display screen includes some LEDs in parallel, constitutes the word content served as warning.When being crossed if vehicle, power electricity conversion
Component electricity can light electronic display, so as to warn opposite to drive into the driver of vehicle, with the generation cutd down traffic accidents.
2nd, Patent No. CN200420073346.6, entitled " Electrooptical warning device for vehicle safety meeting on sudden turn road "
Utility model patent, the patent is related to acousto-optic warning device during for sharp highway turn automobile meeting.Provided with sound pick-up words
Cylinder, sound control circuit, acousto-optic warning circuit, the input of the output termination sound control circuit of sound pick-up microphone, the output of sound control circuit
End connects acousto-optic warning circuit through connecting wire.In use, sound pick-up microphone is arranged in front of sharp highway turn at about 50m,
And set into the mark such as safety line, acousto-optic warning circuit can be located at sharp highway turn opposite side appropriate location, car according to road conditions
Enter safety line or when seeing mark, driver's ring loudspeaker, acousto-optic warning circuit is simultaneously emitted by warning sound and light signal, reminded
Driver is entering sharp turn front reduction gear, given precedence to.
Although above-mentioned patent, which proposes, solves the technical scheme that sharp highway turn points out running car situation, but above-mentioned
All there is problems with the technical scheme that patent is proposed：
1st, the presence of vehicle is only detected and pointed out, the presence of human or animal is not detected and point out；
2nd, do not consider tired driver drive, it is absent minded to prompting do not make a response the problem of；
3rd, there is the problem of larger traffic accident can not contact rescue；
4th, the function of being dredged intersection vehicle is lacked.
Therefore it is necessary that this is improved, design a kind of more intelligence and the sharp road turn of hommization/abrupt slope prompting
Device.
The content of the invention
The technical problem to be solved in the present invention is：There is provided a kind of road sharp turn prompting human pilot opposite terrain vehicle
And row human or animal a kind of sharp road turn/abrupt slope suggestion device.The device not only solves asking for zig zag road meeting
Topic, also with communication alert function and automatic retarding function.
The technical scheme of the technical problem to be solved in the present invention is：
A kind of sharp road turn/abrupt slope suggestion device, including it is central controller, supply unit, horizontal positioned at left and right directions road
Beam is provided with the first detection device, the first suggestion device, and the second detection device, second are provided with positioned at fore-and-aft direction road crossbeam
Suggestion device, is embedded with the first near-end inductor and the first distal end inductor and near positioned at first under left and right directions road
The first deceleration device between inductor and the first distal end inductor is held, between crossbeam and the first near-end inductor in road
Lateral edges are provided with the first range unit, and the second near-end inductor and the second distal end inductor are embedded with fore-and-aft direction road
And the second deceleration device between the second near-end inductor and the second distal end inductor, sense in crossbeam and the second near-end
The outer ledge of road is provided with the second range unit between device.First detection device includes ultrasonic detector and infrared acquisition
Device, to detect the vehicle driven towards on left and right directions road at sharp turn, row human or animal, second detection device includes ultrasound
Wave detector and infrared detector, to detect the vehicle driven towards on fore-and-aft direction road at sharp turn, row human or animal, described
First, two suggestion devices are equipped with traffic lights and LED display.First and second range unit includes multiple ultrasonic detectors, uses
To detect the width of vehicle distances road transverse edge.First and second deceleration device includes multiple automatic lifting speed bumps, is used to
The speed of the automobile detected according to first and second detection device adjusts the height of automatic lifting speed bump.First and second detection dress
Put, first and second suggestion device, first and second range unit, first and second near-end inductor, first and second deceleration device, first and second
Distal end inductor is electrically connected with central controller and supply unit, central controller and supply unit electrical connection.
Preferably, first and second detection device is arranged on head, and head is fixed on the crossbeam being erected above road.
Preferably, first and second suggestion device includes loudspeaker, highlighted searchlight.
Preferably, highlighted searchlight is arranged on head, and head is fixed on the crossbeam being erected above road.
Preferably, set by road fore-and-aft direction two groups of first and second near-end inductor and first and second distal end inductor
Metal sensor is constituted, the direction to differentiate vehicle traveling.
It is preferred that, central controller is connected with high-definition camera, and high-definition camera is arranged on the crossbeam of road.
It is preferred that, central controller is connected with communicator, and communicator is provided with GPRS communication modules, and communicator is installed
On the crossbeam of road.
The beneficial effects of the utility model are,
First, the problem of solving prompting opposite road pedestrian and animal；
Second, with automatic slow-down device, solve the problem of human pilot is not made a response because not seeing prompting；
3rd, the device is provided with communication module, solves and the problem of traffic accident can not be contacted with the external world in time occurs；
4th, differentiated by measuring the width of vehicle distances road edge opposite vehicle whether can by and make phase
The prompting answered, intelligence when realizing dual-way vehicle meeting is dredged.
Brief description of the drawings
Fig. 1 is layout drawing of each device of the utility model on road,
Fig. 2 is the electrical connection diagram of each device of the utility model,
In figure
21st, the first detection device, the 22, second detection device,
31st, the first suggestion device, the 32, second suggestion device,
51st, the first range unit, the 52, second range unit,
61st, the first near-end inductor, the 62, second near-end inductor,
71st, the first deceleration device, the 72, second deceleration device,
81st, the first distal end inductor, the 82, second distal end inductor,
9th, communicator,
A1, the first turning area, A2, the second turning area,
B1, the first deceleration area, B2, the second deceleration area.
Embodiment
To make the technical solution of the utility model and beneficial effect clearer, below to embodiment of the present utility model
Further explained in detail.
Sharp road turn/abrupt slope suggestion device is controlled by central controller, supply unit and various information collecting devices and prompting
Device composition processed.Central controller issues corresponding instruction by handling the information that collects to prompting control device to realize pair
Human pilot points out the function of opposite road conditions.As shown in figure 1, being provided with first and second detection device on the road of turning
21st, the distal end inductor 81,82, of 22, first and second range unit, 51,52, first and second near-end inductor 61,62, first and second
First, the deceleration device 71,72 of two suggestion device 31,32, first and second.
In order to give first and second detector 21,22 to provide more preferable detection angle, while in order to allow first and second suggestion device
31st, 32 more intuitively it is shown in face of human pilot, installation detector and suggestion device has been set up above the road at turning
Crossbeam.First detection device 21, the first suggestion device 31 are arranged on the crossbeam that left and right directions road is set up, the second detection dress
The 22, second suggestion device 32 is put on the crossbeam that fore-and-aft direction road is set up.
To reduce the consumption of electric energy, first and second detection is restarted after having vehicle to drive into first and second deceleration area B1, B2
Device 21,22 and first and second suggestion device 31,32, drive into first and second turning area A1, A2 in vehicle and restart first and second survey
Away from device 51,52.Therefore first and second distal end is buried under side roads of first and second deceleration area B1, the B2 away from turning to feel
Device 81,82 is answered, first and second near-end inductor is buried under the road of the side at turning in first and second deceleration area B1, B2
61、62.First and second deceleration device 71,72 is buried in first and second deceleration area B1, B2.
In order to measure whether the width of vehicle distances road two edges meets the condition that opposite vehicle passes through, in left and right directions
The inside edge of road is provided with the first range unit 51 between road crossbeam and the first near-end inductor 61, in fore-and-aft direction road
The outer ledge of road is provided with the second range unit 52 between crossbeam and the second near-end inductor 62.
In the prior art, most zig zag suggestion device is to detect the vehicle at turning and seldom detect turning
The row humans and animals at place, therefore first and second detection device 21,22 of the utility model also sets in addition to provided with ultrasonic detector
There is infrared detector.Infrared detector can monitor the row humans and animals at turning in the very first time.First detection device 21 is visited
Survey to drive towards on vehicle and the pedestrian for driving towards turning on left and right directions road, the second detection device 22 detection fore-and-aft direction road and turn
The vehicle of crook and pedestrian.
Preferably, first and second detection device 21,22 detects the vehicle of multiple angles for convenience, and cloud is provided with crossbeam
Platform, first and second detection device 21,22 is arranged on head.The order wire of head and the communication interface of central controller electrically connect
Connect, the power line of head and the power output terminal of supply unit are electrically connected.The letter that central controller is collected by road surface
Breath controls the rotation of head to gather the vehicle of different directions, diverse location.
In order to preferably by vehicle on the road of opposite and the information alert of pedestrian to human pilot, first and second suggestion device
31st, 32 LED display is additionally provided with addition to provided with traffic lights.Traffic lights are used for the signal for providing vehicle traveling and stopping, LED
Display screen is used to show the quantity of opposite vehicle and the distance at vehicle distances turning.
Preferably, in order to prevent human pilot from not seeing prompt message, first and second suggestion device 31,32 is additionally provided with highlighted
Searchlight and loudspeaker.Loudspeaker be in order to not note traffic lights in human pilot in the case of give auditory tone cues.It is high
Bright searchlight can also pass through flash for prompting human pilot except the illumination for night and haze weather.
Preferably, in order that highlighted searchlight preferably illuminates the road of vehicle traveling, equally set to highlighted searchlight
Head.Central controller passes through the near-end sense of first and second detection device, 21,22, first and second range unit 51,52, first and second
The positional information for the vehicle that the distal end inductor 81,82 of device 61,62, first and second collects is answered to determine the position of vehicle.Center control
The position signalling that the positional information of vehicle is converted into head identification is sent to the controller of head by device processed.Head receives position
The position specified is turned to after information, highlighted searchlight alignment vehicle is subjected to flash for prompting and illumination.
Because first and second near-end inductor 61,62 apart from turning has a certain distance, in order to preferably judge vehicle away from
Whether the width from road two edges meets the condition that opposite vehicle passes through, and first and second range unit 51,52 is by multiple ultrasounds
Wave detector is constituted, and ultrasonic detector is sequentially arranged in road edge.On first range unit 51 detection left and right directions road
Drive towards the change width of the vehicle distances road inside edge of sharp turn.On second range unit 52 detection fore-and-aft direction road
Drive towards the change width of the vehicle distances road outer ledge of sharp turn.Central controller passes through the change width meter that detects
The running orbit of vehicle is calculated to judge that can the vehicle that drive towards sharp turn on opposite direction road by area of taking a sudden turn.
Preferably, the travel direction of automobile, the distal end of first and second near-end inductor 61,62 and first and second are detected for convenience
Inductor 81,82 is equipped with road fore-and-aft direction two groups of metal sensors arranged side by side.By two groups of metal sensors detect when
Between difference calculate the speed of running car, sequentially judge vapour by judging that two groups of metal sensors detect the time order and function of signal
Car drives into deceleration area or rolls deceleration area away from.
By taking turn inside diameter on left and right directions road as an example, it is specific that realization is dredged the automobile progress intelligence for driving into turning area
Method and step is as follows：
Step 1, after automobile is by the first near-end inductor 61, the first near-end inductor 61 will detect vehicle and pass through signal
Pass to central controller；
Step 2, central controller is received after the signal of the first near-end inductor 61, and judgement drives into or rolled away from first
Turning area A1, if driving into, starts the first range unit 51, if rolling away from, closes the second range unit 52；
Step 3, the first range unit 51 measures the width of vehicle distances road surface inside edge and is sent to central controller；
Step 4, central controller calculates vehicle running orbit and to its row according to the change width apart from inside edge
Sail direction and carry out anticipation.If the track of vehicle traveling is increasingly closer to the track of opposite vehicle, i.e. vehicle is increasingly closer to
On the inside of road, the short of width of opposite vehicle lane is caused to light the red of the second suggestion device 32 to allow the vehicle on opposite to pass through, then
Automobile on lamp prompting fore-and-aft direction road halts；If the track of vehicle traveling is more and more far away from the car of opposite vehicle
Road, i.e. vehicle are increasingly closer on the outside of road, and the width of opposite vehicle lane meets to allow the vehicle on opposite to pass through, then light the
Automobile turning area on the amber light prompting fore-and-aft direction road of two suggestion devices 32 has vehicle to need to be advanced slowly；
Step 5, after the second turning area A2 for rolling opposite road away from after automobile turning, the second near-end inductor 62 is detected
Signals of vehicles, and signal is passed into central controller；
Step 6, central controller judges that the vehicle that the second near-end inductor 62 is detected drives into or rolled away from second turn
Curved area, if rolling away from, closes the first range unit 51.
In order to prevent to enter speed in turning area too fast, on the outside of the deceleration area remotely of turning provided with the
First, two distal end inductor 81,82.First and second deceleration device 71,72 is provided with deceleration area.First and second deceleration device 71,
72 include multiple automatic lifting speed bumps, and the automatic lifting speed bump is provided with deceleration strip, and deceleration strip is mutually twisted including two pieces
Pectination deceleration band plate, two sides of deceleration strip are connected in the rotating shaft of pedestal, and pectination deceleration band plate can turning along pedestal
Axle is rotated.The rotating shaft of pedestal is arranged on and road surface same level position.The lower end of deceleration strip is provided with liftable supporting mechanism,
When supporting mechanism is in raised configuration, deceleration strip is convex, when supporting mechanism is in landing state, and deceleration strip is in tabular,
So that when the travel speed of vehicle is in speed limit, passing through from the deceleration strip flushed with road surface, the travel speed of vehicle surpasses
When crossing speed limit, it is connected but passes through on the deceleration strip of intermediate projections with road surface slippery from both sides.First and second distal end inductor 81,82
Detect after vehicle enters first and second deceleration area B1, B2 and started first and second detector 21,22.First and second detector 21,22
Detect the travel speed of vehicle and pass to central controller.Velocity information is transmitted to first and second deceleration by central controller
Device 71,72, first and second deceleration device 71,72 adjusts automatic lifting speed bump according to reception to car speed size
Highly realize the deceleration to different speed automobiles.
So that vehicle on left and right directions road drives into the first deceleration area B1 as an example, the car deceleration to driving into deceleration area is realized
Specific method step is as follows：
Step 1, when automobile is by the first distal end inductor 81, the first distal end inductor 81 will detect signals of vehicles biography
Pass central controller；
Step 2, central controller handles the information that transmits of the first distal end inductor 81 and judges the travel direction of automobile, such as
Fruit is to drive into the first deceleration area B1 and then start 21 pairs of vehicles driven into of the first detector to be tested the speed and ranging, if rolling away from then
Continue the resting state of the first detector 21 of holding, thus mode realizes the requirement of low-power consumption, extend the use time of electricity；
Step 3, the velocity information detected is passed to the first deceleration device 71, the first deceleration device 71 by central controller
The height for adjusting deceleration strip by the velocity information received realizes the speed limit to different speed vehicles；
Step 4, automobile is rolled away from after the first deceleration area B1, and the first near-end inductor 61 detects vehicle by signal, and will
Signal passes to central controller；
Step 5, central controller obtains vehicle and rolled away from after the first deceleration area B1 signal, stops the work of the first detector 21
Make, and the first deceleration device 71 is recovered into the state concordant with road surface.
As shown in Fig. 2 first and second detection device 21,22, the first and second prompting dress in the sharp turn/abrupt slope suggestion device
Put the deceleration device 71,72, of 31,32, first and second range unit, 51,52, first and second near-end inductor 61,62, first and second
First, two distal end inductors 81,82 are electrically connected with central controller and supply unit, and central controller is electric with supply unit
Connection.
Preferably, in order to record sharp turn vehicle travel situations, high-definition camera is mounted with the crossbeam of road.
Preferably, hill path is normally at more remote area, occurs after traffic accident on the zig zag road in hill path
It can not often notify that related rescue department is rescued, therefore communication is provided with road zig zag, abrupt slope suggestion device
Device 9.Communicator 9 includes GPRS module, and communicator 9 is electrically connected with supply unit and central controller, communicator 9
On the crossbeam that left and right directions road is set up.
By the processing to vehicle traveling information and the camera function of high-definition camera is coordinated to realize to traffic accident
Intelligent alarm, it realizes that the method for discrimination of intelligent alarm is：
Step 1, the first near-end inductor 61 has detected vehicle and has driven into the first turning area A1 on left and right directions road, and will
Signal passes to central controller；
Step 2, before and after the second near-end inductor 62 has been not detected by before vehicle rolls the second turning area A2 away from and detected
There is vehicle to drive into the second turning area A2 on the road of direction, central controller, which is received, opens timer after signal；
Step 3, first and second near-end inductor 61,62 has still been not detected by vehicle and sailed after timer reaches certain time
Go out turning area and then start camera and turning area is taken pictures；
Step 4, after central controller is handled picture, the positional information and pictorial information of the road that takes a sudden turn are sent
To communicator 9；
Step 5, the warning message of central controller is passed to vehicle supervision department and rescue by communicator 9 by GPRS
Department；
Step 6, vehicle supervision department judges whether really there is traffic accident by picture, if occurring then to believe according to position
Breath transfers nearest relief group, is disregarded if not.
In summary, preferred embodiment only of the present utility model, not for limiting scope of the present utility model,
By above-mentioned description, relevant staff can be carried out without departing from the scope of the technological thought of the present invention' completely
Various changes and amendments.Technical scope of the present utility model is not limited to the content on specification, and Fan Yiben is practical
Shape, construction, feature and spiritual so-called equivalent changes and modifications described in new claimed range, all should include and this practicality
In new right.
Claims (7)
1. a kind of sharp road turn/abrupt slope suggestion device, including central controller, supply unit, it is characterised in that
The first detection device (21), the first suggestion device (31) are being provided with left and right directions road crossbeam, positioned at front and rear
Direction road crossbeam is provided with the second detection device (22), the second suggestion device (32),
The first near-end inductor (61) and the first distal end inductor (81) are embedded with left and right directions road and positioned at
The first deceleration device (71) between one near-end inductor (61) and the first distal end inductor (81), in crossbeam and the first near-end sense
The inside edge of road between device (61) is answered to be provided with the first range unit (51),
The second near-end inductor (62) and the second distal end inductor (82) are embedded with fore-and-aft direction road and positioned at
The second deceleration device (72) between two near-end inductors (62) and the second distal end inductor (82), in crossbeam and the second near-end sense
The outer ledge of road between device (62) is answered to be provided with the second range unit (52),
First detection device (21) includes ultrasonic detector and infrared detector, is sailed to detect on left and right directions road
To the vehicle at sharp turn, row human or animal, second detection device (22) includes ultrasonic detector and infrared detector, uses
To detect the vehicle driven towards on fore-and-aft direction road at sharp turn, row human or animal, first and second suggestion device (31,32) is
Provided with traffic lights and LED display,
First and second range unit (51,52) includes multiple ultrasonic detectors, to detect that vehicle distances road is horizontal
The width at edge,
First and second deceleration device (71,72) includes multiple automatic lifting speed bumps, to be filled according to first and second detection
The speed for the automobile that (21,22) are detected is put to adjust the height of automatic lifting speed bump,
First and second detection device (21,22), first and second suggestion device (31,32), first and second range unit (51,52),
First and second near-end inductor (61,62), first and second deceleration device (71,72), first and second distal end inductor (81,82) with
Central controller and supply unit electrical connection, central controller and supply unit electrical connection.
2. a kind of sharp road turn/abrupt slope suggestion device according to claim 1, it is characterised in that：
First and second detection device (21,22) is arranged on head, and head is fixed on the crossbeam being erected above road.
3. a kind of sharp road turn/abrupt slope suggestion device according to claim 1, it is characterised in that：
First and second suggestion device (31,32) includes loudspeaker, highlighted searchlight.
4. a kind of sharp road turn/abrupt slope suggestion device according to claim 3, it is characterised in that：
The highlighted searchlight is arranged on head, and head is fixed on the crossbeam being erected above road.
5. a kind of sharp road turn/abrupt slope suggestion device according to claim 1, it is characterised in that：
What the first and second near-end inductor (61,62) and first and second distal end inductor (81,82) were set by fore-and-aft direction
Two groups of metal sensor compositions, the direction to differentiate vehicle traveling.
6. a kind of sharp road turn/abrupt slope suggestion device according to claim 1, it is characterised in that：
The central controller is connected with high-definition camera, and the high-definition camera is arranged on the crossbeam of road.
7. a kind of sharp road turn/abrupt slope suggestion device according to claim 1, it is characterised in that：
The central controller is connected with communicator (9), and the communicator (9) is provided with GPRS communication modules, communicator
(9) on the crossbeam of road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019321.5U CN206431834U (en) | 2017-01-09 | 2017-01-09 | A kind of sharp road turn/abrupt slope suggestion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019321.5U CN206431834U (en) | 2017-01-09 | 2017-01-09 | A kind of sharp road turn/abrupt slope suggestion device |
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| Publication Number | Publication Date |
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| CN206431834U true CN206431834U (en) | 2017-08-22 |
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ID=59585751
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| CN201720019321.5U Expired - Fee Related CN206431834U (en) | 2017-01-09 | 2017-01-09 | A kind of sharp road turn/abrupt slope suggestion device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085045A (en) * | 2019-05-05 | 2019-08-02 | 方星星 | Road and driving Real-time security monitoring, navigation system and safety monitoring method |
| CN111445725A (en) * | 2020-04-03 | 2020-07-24 | 成都杰瑞迪信息技术有限公司 | Blind area intelligent warning device and algorithm for meeting scene |
-
2017
- 2017-01-09 CN CN201720019321.5U patent/CN206431834U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110085045A (en) * | 2019-05-05 | 2019-08-02 | 方星星 | Road and driving Real-time security monitoring, navigation system and safety monitoring method |
| CN111445725A (en) * | 2020-04-03 | 2020-07-24 | 成都杰瑞迪信息技术有限公司 | Blind area intelligent warning device and algorithm for meeting scene |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170822 Termination date: 20220109 |