CN104157157A - Mountain area continuous curve downhill double lane road section driving safety prompting device - Google Patents
Mountain area continuous curve downhill double lane road section driving safety prompting device Download PDFInfo
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- CN104157157A CN104157157A CN201410394979.5A CN201410394979A CN104157157A CN 104157157 A CN104157157 A CN 104157157A CN 201410394979 A CN201410394979 A CN 201410394979A CN 104157157 A CN104157157 A CN 104157157A
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Abstract
The present invention belongs to the mountain area driving safety auxiliary technology field, in particular to a mountain area continuous curve downhill double lane road section driving safety prompting device. The mountain area continuous curve downhill double lane road section driving safety prompting device is characterized by comprising a central processor, wherein two vehicle detectors used for detecting whether a vehicle passes are arranged under the road surface of the inner lane of each curve and are located at the two ends of the corresponding curve respectively, and two LED displays used for displaying the vehicle information of the front opposite direction lanes are fixed on the inner road shoulder of each curve and are located at the two ends of the inner side of the corresponding curve respectively; each LED display faces the vehicle coming direction of the inner lane of the corresponding lane, each vehicle detector is in wireless communication connection with the central processor, and the control end of each LED display is connected with the central processor electrically. The mountain area continuous curve downhill double lane road section driving safety prompting device of the present invention has the characteristics of being little in investment, high in precision and reliability, and automated and simple in construction.
Description
Technical field
The invention belongs to the safe ancillary technique of driving in mountains field, particularly the continuous bend descending two-way lane in a kind of mountain area section driving safety prompt device.
Background technology
China's mountain road Frequent Accidents, loss of personal property is huge.Mountain road, owing to limited by landform, exists continuous bend descending two-way traffic section in a large number.Continuous bend descending two-way traffic section, mountain area, under the combined influence of road plane curvature and head fall, vehicle control is not fast, and safe driving sighting distance is not enough, is difficult to discovery the place ahead subtend in time and sends a car, and usually because dodging, causes not in time collision accident to occur.More seriously, on continuous bend descending two-way traffic, driver, for security consideration, tends to travel at road center, and this has just aggravated the generation of accident.
Summary of the invention
The object of the invention is to propose continuous bend descending two-way lane section, a kind of mountain area driving safety prompt device, for reminding the vehicle front subtend track of travelling on continuous bend descending two-way lane section, mountain area whether to send a car.If near display place, place sends gold-tinted, represent that subtend track, the place ahead is just having vehicle to sail, driver obtains can slowing down in time or keeping to the right after this information, to avoid meeting collision accident to occur; If near display place place sends green glow, represent that subtend track, the place ahead sails without vehicle, driver's normal driving is by bend and ramp.
For realizing above-mentioned technical purpose, the present invention adopts following technical scheme to be achieved.
Continuous bend descending two-way lane section, a kind of mountain area driving safety prompt device comprises central processing unit, the road surface in described each curve inner side track is arranged with two for detection of the Vehicle analyzer that whether has vehicle to pass through, and described two Vehicle analyzers lay respectively at the two ends of corresponding bend; On described each curve inner side curb, be fixed with two for showing the light-emitting diode display of subtend track, the place ahead information of vehicles, described two light-emitting diode displays lay respectively at the two ends of corresponding curve inner side; Each light-emitting diode display is towards the direction to the car in corresponding curve inner side track;
Each Vehicle analyzer forms radio communication with central processing unit and is connected, and the control end of each light-emitting diode display is electrically connected to described central processing unit.
Feature of the present invention and further improvement are:
Described each Vehicle analyzer for detect corresponding track with vehicle by time, to central processing unit, send high level signal;
At the opposite side that goes out bent-up end of the curve ahead near track, corresponding Vehicle analyzer place, be fixed with the pairing light-emitting diode display of described corresponding Vehicle analyzer, the contiguous track of the pairing light-emitting diode display of described corresponding Vehicle analyzer forms subtend track with track, corresponding Vehicle analyzer place; Described central processing unit is during for high level signal receiving from arbitrary Vehicle analyzer, to the pairing light-emitting diode display of corresponding Vehicle analyzer, transmits control signal;
Described each light-emitting diode display for sending green glow when not receiving control signal, described each light-emitting diode display is for send the gold-tinted that the duration is t (then sending green glow) when receiving control signal, and t is the time that each light-emitting diode display of setting sends gold-tinted.
Described each Vehicle analyzer is VD-I type traffic vehicle detecting instrument.
Described each light-emitting diode display is round LED display, and described each light-emitting diode display is fixed on road surface by column.
The diameter of described each light-emitting diode display is 0.8m, and described each light-emitting diode display is 2.5m apart from the height on ground.
Described each Vehicle analyzer is 150m with the distance at corresponding bend flex point place, and described each light-emitting diode display is 150m with the distance at corresponding bend flex point place.
Described each Vehicle analyzer is positioned at the below, central road surface in corresponding track
Beneficial effect of the present invention is:
Continuous bend descending two-way lane section, a kind of mountain area of the present invention driving safety prompt plant investment is few, and precision is high, is applicable to large-scale promotion, has that construction is simple, intellectuality, robotization, a feature that reliability is high.
Accompanying drawing explanation
Fig. 1 is the installation site schematic diagram of continuous two the bend descending two-way lane section driving safety prompt devices in the mountain area of the embodiment of the present invention;
Fig. 2 is the circuit connection structure schematic diagram of continuous two the bend descending two-way lane section driving safety prompt devices in the mountain area of the embodiment of the present invention;
Fig. 3 is the structural representation of the light-emitting diode display of continuous two the bend descending two-way lane section driving safety prompt devices in the mountain area of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
In the embodiment of the present invention, continuous two the bend descending two-way lanes of take describe as example.With reference to Fig. 1, it is the installation site schematic diagram of continuous two the bend descending two-way lane section driving safety prompt devices in mountain area of the embodiment of the present invention.With reference to Fig. 2, it is the circuit connection structure schematic diagram of continuous two the bend descending two-way lane section driving safety prompt devices in mountain area of the embodiment of the present invention.
In the embodiment of the present invention, continuous two the bend descending two-way lane section driving safety prompt devices in a kind of mountain area comprise: the first Vehicle analyzer 1, the second Vehicle analyzer 2, the 3rd Vehicle analyzer 3 and the 4th Vehicle analyzer 4.In conjunction with Fig. 1, the first Vehicle analyzer 1 and the second Vehicle analyzer 2 lay respectively at the two ends of first bend, the fast lane that the first Vehicle analyzer 1 is embedded in first bend enters below the road surface central authorities of bent-up end, and the first Vehicle analyzer 1 is 150m with the distance at first bend flex point place; The fast lane that the second Vehicle analyzer 2 is embedded in first bend goes out below the road surface central authorities of bent-up end, and the second Vehicle analyzer 2 is 150m with the distance at first bend flex point place.The 3rd Vehicle analyzer 3 and the 4th Vehicle analyzer 4 lay respectively at the two ends of second bend, the fast lane that the 3rd Vehicle analyzer 3 is embedded in second bend goes out below the road surface central authorities of bent-up end, and the distance at the 3rd Vehicle analyzer 3 and second bend flex point place is 150m; The 4th Vehicle analyzer 2 be embedded in second bend fast lane enter bent-up end road surface central authorities belows, the distance at the 4th Vehicle analyzer 4 and second bend flex point place is 150m.
In the embodiment of the present invention, each Vehicle analyzer adopts the VD-I type traffic vehicle detecting instrument of Shuntong Electronics Co Ltd, Tianjin City's independent research and development, and its important technological parameters is: detect apart from ground maximum height: 60cm; Physical dimension: diameter: 95mm, highly: 104mm; Working current: 0.8mA (normally)/300mA (peak value)/1.1mA (mean values under 5000 car/days); Radio band: 2.4GHz; Without wire rate: 250kbps; Wireless power: 17dBm.
In the embodiment of the present invention, continuous two the bend descending two-way lane section driving safety prompt devices in mountain area also comprise a central processing unit, and each Vehicle analyzer forms radio communication with central processing unit and is connected (each Vehicle analyzer is sent to central processing unit by the wireless transmitter module carrying by corresponding wireless signal).Any Vehicle analyzer detect corresponding track with vehicle by time, to central processing unit, send high level signal, otherwise, when any Vehicle analyzer do not detect corresponding track with vehicle by time, not to central processing unit transmitted signal.
In the embodiment of the present invention, continuous two the bend descending two-way lane section driving safety prompt devices in a kind of mountain area also comprise the first light-emitting diode display 5, the second light-emitting diode display 6, the 3rd light-emitting diode display 7 and the 4th light-emitting diode display 8, wherein, the first light-emitting diode display 5 is fixed on entering on bent-up end curb of first curve inner side, the second light-emitting diode display 6 is fixed on going out on bent-up end curb of first curve inner side, the 3rd light-emitting diode display 7 is fixed on going out on bent-up end curb of second curve inner side, and the 4th light-emitting diode display 8 is fixed on entering on bent-up end curb of second curve inner side.Each light-emitting diode display is 150m with the distance at corresponding bend flex point place, each light-emitting diode display is towards the direction to the car in corresponding curve inner side track, each light-emitting diode display is for adopting the fixing circular displays of column, and column height is 2.5m, and the diameter of each light-emitting diode display is 0.80m.With reference to Fig. 3, it is the structural representation of the light-emitting diode display of continuous two the bend descending two-way lane section driving safety prompt devices in mountain area of the embodiment of the present invention.
In the embodiment of the present invention, the control end of each light-emitting diode display is electrically connected to described central processing unit, and each light-emitting diode display is towards the direction to the car in corresponding curve inner side track.When light-emitting diode display sends gold-tinted (demonstration amber light), illustrate that subtend track, the place ahead is just having vehicle to sail, driver obtains can slowing down in time or keeping to the right after this information, to avoid meeting collision accident to occur; Otherwise light-emitting diode display sends green glow (demonstration green light), illustrate that subtend track, the place ahead sails without vehicle, driver can normal driving by bend and ramp.
The course of work below in conjunction with the accompanying drawing explanation embodiment of the present invention:
In conjunction with Fig. 1, due to the combined influence of planar curvature and head fall, first vehicle 9 and the 3rd vehicle 11 can not obtain the other side's information in time, and meeting accident easily occurs when meeting; The second vehicle 10 and the 4th vehicle 12 can not obtain the other side's information in time, and meeting accident easily occurs when meeting.
Now, the position of the second vehicle 10 can be regarded as to the following run location of first vehicle 9, for first vehicle 9, these continuous two bend descending two-way lane sections of safety, first whether need has car to sail at first vehicle 9 the 3rd vehicle 11 places of prediction, place, then whether at the second vehicle 10 places, predicting the 4th vehicle 12 places has car to sail.For other vehicles, also need and the similar prediction process of first vehicle 9.
Whether each Vehicle analyzer can accurately detect place, place efficiently has vehicle to pass through.Described each detector detects after vehicle, by the unlimited transmitter module carrying, high level signal (having car signal) is sent to described central processing unit.In Fig. 1, the arrow at each light-emitting diode display place represent corresponding light-emitting diode display towards.
When central processing unit receives the high level signal of the first Vehicle analyzer 1, in real time high level signal is transferred to the 3rd light-emitting diode display 7, the 3rd light-emitting diode display 7 is after receiving the high level signal of central processing unit, send gold-tinted (demonstration amber light), continue displaying time 13.5s, send subsequently green glow (demonstration green light), continue to show that green light is to receiving next high level signal.
In like manner, when central processing unit receives the high level signal of the second Vehicle analyzer 2, in real time high level signal is transferred to the 4th light-emitting diode display 8, the 4th light-emitting diode display 8 is after receiving the high level signal of central processing unit, send gold-tinted (demonstration amber light), continue displaying time 13.5s, send subsequently green glow (demonstration green light), continue to show that green light is to receiving next high level signal.
When central processing unit receives the high level signal of the 3rd Vehicle analyzer 3, in real time high level signal is transferred to the first light-emitting diode display 5, the first light-emitting diode display 5 is after receiving the high level signal of central processing unit, send gold-tinted (demonstration amber light), continue displaying time 13.5s, send subsequently green glow (demonstration green light), continue to show that green light is to receiving next high level signal.
When central processing unit receives the high level signal of the 4th Vehicle analyzer 4, in real time high level signal is transferred to the second light-emitting diode display 6, the second light-emitting diode display 6 is after receiving the high level signal of central processing unit, send gold-tinted (demonstration amber light), continue displaying time 13.5s, send subsequently green glow (demonstration green light), continue to show that green light is to receiving next high level signal.
The following describes light-emitting diode display is shown to the duration of amber light makes schematic illustration: each Vehicle analyzer is lm with the distance at corresponding bend flex point place, each light-emitting diode display with the distance at corresponding bend flex point place be lm, road speed limit is expressed as v, vehicle be can obtain being detected and to next, the time t of Vehicle analyzer, t=l/v located by this place's Vehicle analyzer.In embodiments of the present invention, l gets 150, v and gets 40km/h, and obtaining t is 13.5s.
In sum, in order to eliminate or to reduce the mountain area flat ordinate of continuous bend descending two-way lane section road and bring above adverse effect, the present invention is by detecting the place ahead sighting distance situation of sending a car outward, and by safety reminding device, vehicle is carried out to safety instruction, so that vehicle is taked the rational approach that slows down and dodge in time, can effectively reduce the generation of this type of accident, ensure the traffic safety in continuous bend descending two-way lane section, mountain area.
The present invention is directed to continuous bend descending two-way traffic section, mountain area and cause the problem that meeting collision accident takes place frequently because of sighting distance deficiency, adopting Vehicle analyzer to detect the place ahead, subtend track sends a car, and show by light-emitting diode display amber light, current driver is carried out to safety instruction, the safety practices such as help driver takes timely and effectively to slow down and keeps to the right, can realize the safety instruction to the driving of continuous bend descending two-way traffic section, mountain area accurately, efficiently, reliably.Meanwhile, the present invention mainly relies on Vehicle analyzer, central processing unit and light-emitting diode display, and equipment is less, with low cost, and construction is simple, is beneficial to promotion and application, has very strong engineering practicability and good application prospect.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (7)
1. continuous bend descending two-way lane section, mountain area driving safety prompt device, it is characterized in that, comprise central processing unit, the road surface in described each curve inner side track is arranged with two for detection of the Vehicle analyzer that whether has vehicle to pass through, and described two Vehicle analyzers lay respectively at the two ends of corresponding bend; On described each curve inner side curb, be fixed with two for showing the light-emitting diode display of subtend track, the place ahead information of vehicles, described two light-emitting diode displays lay respectively at the two ends of corresponding curve inner side; Each light-emitting diode display is towards the direction to the car in corresponding curve inner side track;
Each Vehicle analyzer forms radio communication with central processing unit and is connected, and the control end of each light-emitting diode display is electrically connected to described central processing unit.
2. continuous bend descending two-way lane section, a kind of mountain area as claimed in claim 1 driving safety prompt device, is characterized in that, described each Vehicle analyzer for detect corresponding track with vehicle by time, to central processing unit, send high level signal;
At the opposite side that goes out bent-up end of the curve ahead near track, corresponding Vehicle analyzer place, be fixed with the pairing light-emitting diode display of described corresponding Vehicle analyzer, the contiguous track of the pairing light-emitting diode display of described corresponding Vehicle analyzer forms subtend track with track, corresponding Vehicle analyzer place; Described central processing unit is during for high level signal receiving from arbitrary Vehicle analyzer, to the pairing light-emitting diode display of corresponding Vehicle analyzer, transmits control signal;
Described each light-emitting diode display for sending green glow when not receiving control signal, described each light-emitting diode display is for send the gold-tinted that the duration is t (then sending green glow) when receiving control signal, and t is the time that each light-emitting diode display of setting sends gold-tinted.
3. continuous bend descending two-way lane section, a kind of mountain area as claimed in claim 1 driving safety prompt device, is characterized in that, described each Vehicle analyzer is VD-I type traffic vehicle detecting instrument.
4. continuous bend descending two-way lane section, a kind of mountain area as claimed in claim 1 driving safety prompt device, is characterized in that, described each light-emitting diode display is round LED display, and described each light-emitting diode display is fixed on road surface by column.
5. continuous bend descending two-way lane section, a kind of mountain area as claimed in claim 4 driving safety prompt device, is characterized in that, the diameter of described each light-emitting diode display is 0.8m, and described each light-emitting diode display is 2.5m apart from the height on ground.
6. continuous bend descending two-way lane section, a kind of mountain area as claimed in claim 1 driving safety prompt device, it is characterized in that, described each Vehicle analyzer is 150m with the distance at corresponding bend flex point place, and described each light-emitting diode display is 150m with the distance at corresponding bend flex point place.
7. continuous bend descending two-way lane section, a kind of mountain area as claimed in claim 1 driving safety prompt device, is characterized in that, described each Vehicle analyzer is positioned at the below, central road surface in corresponding track.
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| CN201410394979.5A CN104157157A (en) | 2014-08-13 | 2014-08-13 | Mountain area continuous curve downhill double lane road section driving safety prompting device |
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| CN201410394979.5A CN104157157A (en) | 2014-08-13 | 2014-08-13 | Mountain area continuous curve downhill double lane road section driving safety prompting device |
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| CN201410394979.5A Pending CN104157157A (en) | 2014-08-13 | 2014-08-13 | Mountain area continuous curve downhill double lane road section driving safety prompting device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599531A (en) * | 2015-02-05 | 2015-05-06 | 长安大学 | Road corner preview system suitable for two-way two-lane winding mountain roads and control method thereof |
| CN106887160A (en) * | 2017-04-24 | 2017-06-23 | 李腾飞 | Car method for early warning is carried out in the bad section of road sighting distance and flying crossing passes through system |
| CN107489504A (en) * | 2016-06-13 | 2017-12-19 | 罗伯特·博世有限公司 | For planning the method and control device of the measure for exhaust after-treatment |
| CN108052758A (en) * | 2017-12-23 | 2018-05-18 | 长安大学 | The linear quality evaluating method of continuous long sharp downhill section based on braking action index |
| CN117711203A (en) * | 2024-02-05 | 2024-03-15 | 山东天用智能技术有限公司 | Continuous curve ramp warning device and application method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100608974B1 (en) * | 2006-02-16 | 2006-08-11 | 김규용 | Safety system of uanderground parkinglot entrance |
| CN101763720A (en) * | 2009-08-12 | 2010-06-30 | 江苏大学 | Slope turn traffic command system based on wireless sensor network |
| CN202434069U (en) * | 2012-02-15 | 2012-09-12 | 交通运输部公路科学研究所 | Geomagnetic sensor-based car meeting early warning system for highway curves |
| GB2492568A (en) * | 2011-07-05 | 2013-01-09 | Gregory Christopher Lawton | Vehicle warning system |
| CN203535802U (en) * | 2013-09-17 | 2014-04-09 | 中国船舶重工集团公司第七一〇研究所 | Alarm device for vehicle at curve based on geomagnetic detection |
| CN204010325U (en) * | 2014-08-13 | 2014-12-10 | 长安大学 | Continuous bend descending two-way traffic section, a kind of mountain area driving safety prompt device |
-
2014
- 2014-08-13 CN CN201410394979.5A patent/CN104157157A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100608974B1 (en) * | 2006-02-16 | 2006-08-11 | 김규용 | Safety system of uanderground parkinglot entrance |
| CN101763720A (en) * | 2009-08-12 | 2010-06-30 | 江苏大学 | Slope turn traffic command system based on wireless sensor network |
| GB2492568A (en) * | 2011-07-05 | 2013-01-09 | Gregory Christopher Lawton | Vehicle warning system |
| CN202434069U (en) * | 2012-02-15 | 2012-09-12 | 交通运输部公路科学研究所 | Geomagnetic sensor-based car meeting early warning system for highway curves |
| CN203535802U (en) * | 2013-09-17 | 2014-04-09 | 中国船舶重工集团公司第七一〇研究所 | Alarm device for vehicle at curve based on geomagnetic detection |
| CN204010325U (en) * | 2014-08-13 | 2014-12-10 | 长安大学 | Continuous bend descending two-way traffic section, a kind of mountain area driving safety prompt device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599531A (en) * | 2015-02-05 | 2015-05-06 | 长安大学 | Road corner preview system suitable for two-way two-lane winding mountain roads and control method thereof |
| CN107489504A (en) * | 2016-06-13 | 2017-12-19 | 罗伯特·博世有限公司 | For planning the method and control device of the measure for exhaust after-treatment |
| CN107489504B (en) * | 2016-06-13 | 2021-04-20 | 罗伯特·博世有限公司 | Method and control device for planning measures for exhaust gas aftertreatment |
| CN106887160A (en) * | 2017-04-24 | 2017-06-23 | 李腾飞 | Car method for early warning is carried out in the bad section of road sighting distance and flying crossing passes through system |
| CN108052758A (en) * | 2017-12-23 | 2018-05-18 | 长安大学 | The linear quality evaluating method of continuous long sharp downhill section based on braking action index |
| CN117711203A (en) * | 2024-02-05 | 2024-03-15 | 山东天用智能技术有限公司 | Continuous curve ramp warning device and application method thereof |
| CN117711203B (en) * | 2024-02-05 | 2024-04-30 | 山东天用智能技术有限公司 | Continuous curve ramp warning device and application method thereof |
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Application publication date: 20141119 |