CN214459796U

CN214459796U - Traffic sign system based on beacon is pre-buried in road

Info

Publication number: CN214459796U
Application number: CN202120578347.XU
Authority: CN
Inventors: 刘睿冬
Original assignee: Zhengzhou Honghuang Intelligent Technology Co ltd
Current assignee: Zhengzhou Honghuang Intelligent Technology Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-10-22
Anticipated expiration: 2031-03-22

Abstract

The utility model provides a traffic sign system based on beacon is pre-buried in road for solve current beacon and can't use and the problem that the visual perception can't realize the safe suitability to most of environmental factors on a large scale at public road, especially human autopilot thoughtlessly walk the road. The utility model discloses a beacon and response module, the beacon is pre-buried in the below of highway pavement layer or concrete pavement way, and response module installs on the automobile body, and the beacon is connected with response module, and response module is connected with intelligent control terminal. The utility model discloses a with the information sign of autopilot vehicle perception directly pre-buried to pavement layer below when the highway construction to reach and carry out the safety redundancy guarantee to autopilot vehicle perception system, solved pre-buried beacon and can't be at the problem that public road especially mankind's autopilot car mixes the road and use on a large scale, can effectively overcome the security problem such as traffic sign is sheltered from, covers, the unable recognition of back light simultaneously.

Description

Traffic sign system based on beacon is pre-buried in road

Technical Field

The utility model relates to a traffic safety technical field, concretely relates to traffic sign system based on beacon is pre-buried in road.

Background

The traditional vehicles are human-adapted visual traffic markings and signs when driven by humans. The automatic driving vehicle uses camera vision to handle, laser radar, ultrasonic radar etc. come perception road surface marking and road standard, because weather, sunshine angle, rain and fog, snow cover the scheduling factor, make ground traffic marking extremely easily receive the influence, and the automatic driving vehicle based on optical camera easily receives the influence of holographic projection to factors such as automatic driving vehicle safety attack, lead to its to the safety redundancy of multiple road conditions and weather condition relatively poor, easily take place the traffic accident and cause personnel's injury and loss of property etc.. The invention patent with the application number of CN201310218303.6 can realize the detection of the information behind the vehicle, obtain the marking and can not obtain the traffic sign. Utility model patent with publication number CN 208264241U adopts the optical pick-up head, and utility model patent with publication number CN 203666508U adopts infrared ray sensor, and traditional radar and optical pick-up head are sharp electromagnetic wave, can't discern when traffic sign is sheltered from, covers, the backlight, has the potential safety hazard. The traditional embedded electronic beacon is a running plan of AGV vehicles in a closed factory, a port and the like, is essentially equivalent to an intangible track, and cannot be used on a public road, particularly a mixed road of human beings and automatic driven vehicles in a large range; the traditional non-pre-embedded beacon is directly installed on the road surface, so that road surface diseases are easily caused, and the driving comfort is influenced.

SUMMERY OF THE UTILITY MODEL

The problem to current beacon can't use on a large scale and the safe suitability of most environmental factors can't be realized to visual perception in public road especially mankind's automatic driving car mixes the road, the utility model provides a traffic sign system based on beacon is pre-buried in the road, through directly pre-buried to pavement layer below with the information sign of automatic driving vehicle perception when highway construction to reach and carry out safe redundancy guarantee to automatic driving vehicle perception system, can effectively overcome the security problems such as traffic sign is sheltered from, covers, the back light can't be discerned simultaneously.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a traffic sign system based on beacon is pre-buried in road, includes beacon and with beacon assorted response module, the beacon is pre-buried in the below of highway asphalt concrete surface course or in the concrete pavement road surface, and the response module is installed on the automobile body, and the beacon is connected with the response module, and the response module is connected with intelligent control terminal.

The beacon is of a perforated flying disc-shaped structure or a round-angle rectangular structure and is embedded between the base layer and the connecting layer of the road or between the connecting layer and the road surface layer.

The beacon is a passive metal beacon, the corresponding sensing module is a vehicle-mounted geophysical prospecting radar, the passive metal beacon is matched with the vehicle-mounted geophysical prospecting radar, and the vehicle-mounted geophysical prospecting radar is connected with the intelligent control terminal.

And the outside of the passive metal beacon is wrapped with a plastic shell.

The beacon is an RFID beacon, the corresponding induction module is an RFID reader, the RFID beacon is matched with the RFID reader, and the RFID reader is connected with the intelligent control terminal.

The RFID beacon is an embedded CPU type electronic tag or a logic encryption type electronic tag.

The utility model has the advantages that: 1. the safety of decision analysis of the automatic driving vehicle is guaranteed when the traffic visual environment is poor by changing the visual traffic sign into the sign of the Internet of things; 2. the construction difficulty is low, the raw material cost is low, the construction cost can be greatly saved compared with the existing automatic driving solution scheme for installing the intelligent road side unit RSU in the vehicle-road cooperation, and the popularization and construction of the automatic driving industry in China are facilitated; 3. the beacon in the utility model has the characteristics of durability, easy replacement, easy maintenance and the like; 4. the beacon in the utility model is arranged in the inorganic structure layer of the road, which does not affect the environment outside the road; 5. the system can also be used for automatic driving vehicles above the level of non-L2, and can assist human drivers to safely remind the driver of the lane and the acquisition of the signs.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the beacon of the present invention pre-buried under a road surface layer;

fig. 2 is a schematic structural diagram of the beacon of the present invention, wherein (a) is a beacon with a perforated flying disc structure, and (b) is a beacon with a rounded rectangular structure;

fig. 3 is a working principle block diagram of embodiment 1 of the present invention;

fig. 4 is a functional block diagram of embodiment 2 of the present invention.

In the figure, 1 is a beacon, 11 is a passive metal beacon, 12 is an RFID beacon, 2 is a sensing module, 21 is a vehicle-mounted geophysical prospecting radar, 22 is an RFID reader, 3 is a pavement layer, 4 is a connecting layer, and 5 is a base layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Embodiment 1, as shown in fig. 1, the present invention provides a traffic sign system based on beacon embedded in road, which comprises a plurality of beacons 1 and a sensing module 2 matched with the beacons 1, the beacon 1 is pre-embedded below a road asphalt concrete surface layer or in a concrete pavement during road construction, the induction module 2 is arranged on a vehicle body, the beacon 1 is connected with the induction module 2, the induction module 2 is connected with a vehicle-mounted intelligent control terminal, that is, the beacon 1 is a marker which can be sensed by the sensing module 2, the sensing module 2 senses the position of the beacon 1 and transmits the position to the intelligent control terminal when the vehicle runs, the plurality of beacons 1 are arranged below a lane line in a road, and a vehicle driver obtains the position information of the beacons through the intelligent control terminal, so that whether the vehicle keeps running safely in a running lane without deviation is judged. According to the structure, the visual traffic sign is changed into the internet of things sign, so that the safety guarantee is realized for the decision analysis of the automatic driving vehicle when the traffic visual environment is poor.

As shown in fig. 2, the beacon 1 is a perforated flying disc-shaped structure or a round-corner rectangular structure, the sensing effect of the perforated flying disc-shaped beacon is lower than that of the round-corner rectangular beacon, but the construction is easier, and the beacon is preferentially applied to a lane marking line, such as a dotted line, and the like; because the beacon of foraminiferous flying saucer shape is the regular straight line and arranges in a large number, even though sense one or two and do not influence whole security. The fillet rectangle structure is easily responded to, uses different metals to let the geophysical prospecting radar combine the smart machine to fall the noise like the AI chip and can obtain the safety information that is different from the lane marking, like hard shoulder, barrier, drainage line, rotary island etc.. The beacon 1 can be embedded between a base layer 5 and a connecting layer 4 or between the connecting layer 4 and a pavement layer 3 of a highway during road paving by assisting in fixing a civil grille and assisting in an automatic paver in the highway construction process, and the installation level of the beacon can be determined according to the pavement level and the later maintenance milling depth and can be installed among all the surface layers, and the beacon can be installed by an automatic machine according to a design drawing. The beacon is embedded in the inorganic structural layer of the road, so that the environment outside the road is not affected, and the road surface is not damaged.

In this embodiment, as shown in fig. 3, beacon 1 is passive metal beacon 11, corresponding response module 2 is on-vehicle geophysical prospecting radar 21, on-vehicle geophysical prospecting radar 21 specifically installs in front bumper lower limb and side skirt and rear bumper, constitute a detection response circuit at whole car chassis, and passive metal beacon 11 and on-vehicle geophysical prospecting radar 21 phase-match, on-vehicle geophysical prospecting radar 21 is connected with intelligent control terminal, on-vehicle geophysical prospecting radar 21 responds to the information of passive metal beacon 11 and transmits intelligent control terminal, even if the automatic drive vehicle of more than non-L2 level also can use, can assist human driver to carry out safety warning to lane and the acquisition of sign. Furthermore, the exterior of the passive metal beacon 11 is wrapped with a plastic shell to increase the weather resistance, and the passive metal beacon has the characteristics of durability, easy replacement, easy maintenance and the like. Further, the intelligent control terminal can use the AI chip to perform noise reduction analysis on the signal waveform obtained by the vehicle-mounted geophysical prospecting radar. Meanwhile, the plastic shell can be wrapped outside the passive metal beacon 11 to improve the weather resistance of the passive metal beacon, and the passive metal beacon has the characteristics of durability, easiness in replacement, easiness in maintenance and the like.

Specifically, during the construction of the highway, the passive metal beacons are arranged on the upper surface of the base layer at certain intervals before the slurry seal is spread in the construction of the pavement according to the position of a boundary line where glass bead vehicles are to be laid on the pavement layer. After construction is finished, the vehicle-mounted geophysical prospecting radar can penetrate through the road surface to sense the existence of the passive metal beacon during automobile running, and geophysical prospecting information returned by detection is subjected to noise reduction and information extraction processing by the vehicle-mounted AI chip and then is used as a safety information comparison guarantee for the visual lane boundary and the guide lane line of the original automobile. Furthermore, beacons made of different metals from the lane line beacons are correspondingly and continuously installed at positions of the drainage line, the separation line, the roundabout and other mark lines which cannot be crossed by the vehicle, and when the vehicle-mounted geophysical prospecting radar of the automatic driving vehicle detects the continuously arranged beacons, the beacons are regarded as traffic beacon signals which cannot be crossed, so that the driving safety is further guaranteed. The whole construction degree of difficulty of this embodiment is lower, raw materials cost is lower, can save construction cost by a wide margin than installing intelligent trackside unit's autopilot solution in the car road cooperation now, is favorable to china's autopilot industry to promote the construction.

Embodiment 2, a traffic sign system based on beacon is pre-buried in road, as shown in fig. 4, beacon 1 is RFID beacon 12, corresponding induction module 2 is RFID reader 22, RFID reader 22 is specifically installed in the front bumper, faces the ground ahead, can install one each from left to right, and RFID beacon 12 and RFID reader 22 match, RFID reader 22 is connected with intelligent control terminal, RFID reader 22 responds to the information of RFID beacon 12 and transmits to intelligent control terminal, thereby supplementary human driver carries out safety warning to lane and the acquisition of sign. Further, the RFID beacon 12 is an embedded CPU type electronic tag or a logic encryption type electronic tag, and can write the traffic sign information into the one-time programmed logic encryption type RFID electronic tag to assist the vehicle in making a decision.

In this embodiment, the RFID beacon may include a national specification: road traffic signs and markings GB 5768 and road traffic sign codes GB/T30699-2014. And the RFID beacon can rewrite the internal information or replace the electronic tag due to the change of the traffic network information, and update the latest traffic network information in real time. Specifically, information about that 2KM arrives at a high-speed ramp and the highway mileage number at the position can be written into the RFID chip, and the automobile can jointly analyze and correct problems possibly occurring in a certain system by combining the information, satellite positioning information and a high-precision radar, so that safety redundancy guarantee is performed on the automatic driving vehicle sensing system.

The other structure is the same as embodiment 1.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a traffic sign system based on beacon is pre-buried in road which characterized in that: including beacon (1) and with beacon (1) assorted response module (2), beacon (1) is pre-buried in the below of highway asphalt concrete surface course or the concrete pavement way, and install on the automobile body response module (2), and beacon (1) is connected with response module (2), and response module (2) is connected with intelligent control terminal.

2. The beacon-embedded-in-road-based traffic sign system according to claim 1, wherein: the beacon (1) is of a perforated flying disc-shaped structure or a round-angle rectangular structure, and the beacon (1) is pre-embedded between a base layer (5) and a connecting layer (4) of a road or between the connecting layer (4) and a road surface layer (3).

3. The beacon-embedded-in-road-based traffic sign system according to claim 2, wherein: the intelligent control system is characterized in that the beacon (1) is a passive metal beacon (11), the corresponding sensing module (2) is a vehicle-mounted geophysical prospecting radar (21), the passive metal beacon (11) is matched with the vehicle-mounted geophysical prospecting radar (21), and the vehicle-mounted geophysical prospecting radar (21) is connected with the intelligent control terminal.

4. The beacon-embedded-in-road-based traffic sign system according to claim 3, wherein: the passive metal beacon (11) is externally wrapped by a plastic shell.

5. The beacon-embedded-in-road-based traffic sign system according to claim 2, wherein: the beacon (1) is an RFID beacon (12), the corresponding sensing module (2) is an RFID reader (22), the RFID beacon (12) is matched with the RFID reader (22), and the RFID reader (22) is connected with the intelligent control terminal.

6. The beacon-embedded-in-road-based traffic sign system according to claim 5, wherein: the RFID beacon (12) is an embedded CPU type electronic tag or a logic encryption type electronic tag.