CN214067959U - Remote sensing road surface detector - Google Patents
Remote sensing road surface detector Download PDFInfo
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- CN214067959U CN214067959U CN202022987439.1U CN202022987439U CN214067959U CN 214067959 U CN214067959 U CN 214067959U CN 202022987439 U CN202022987439 U CN 202022987439U CN 214067959 U CN214067959 U CN 214067959U
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Abstract
The utility model provides a remote sensing road surface detector, include: a pan-tilt driving the detector to rotate in horizontal and vertical directions; the machine shell is connected with the holder, and a laser transmitter and a laser receiver are arranged on the machine shell; the laser transmitter transmits infrared laser to a road surface; a laser receiver that receives infrared laser light reflected from a road surface for detecting a road surface state and cover information; and the signal processing unit is connected with the laser transmitter and the laser receiver and is used for processing the road surface meteorological information. Remote sensing road surface detector can realize the interior multiple spot real-time detection of highway section, and patrols and examines the orbit and support real-time adjustment and many sets of orbit to predetermine.
Description
Technical Field
The utility model relates to an intelligent transportation field relates to non-contact road surface situation detection technique, concretely relates to remote sensing road surface detector.
Background
With the rapid development of highway construction, more and more highways are opened and put into use. Traffic accidents caused by slippery road surfaces of expressways due to weather factors such as rain, snow and the like are frequently reported every year. The road surface state parameter has become one of important driving indication parameters.
The highway has the characteristics of high speed, dense traffic flow, closure and the like, and when the road surface is iced, accumulated water or accumulated snow exists, traffic accidents are more easily caused. The method can provide road condition information for specific roads, bridges, problem road sections, airports, highways and the like in all weather, conveniently, quickly and accurately, and take correct measures in time, thereby greatly improving the safety of highway traffic and ensuring the safe operation of the traffic.
In order to reduce the serious traffic accidents caused by the ice and snow road surface as much as possible, the road surface state needs to be detected, and precautionary measures need to be taken in time. At present, the road surface condition monitoring method mainly comprises a contact type embedded detection method and non-contact measuring equipment which are embedded into the road surface. The contact type embedded detection method of the embedded road surface has complex installation and needs to cut the road surface and embed the detection device. After the equipment is installed, the equipment cannot be taken out, is difficult to maintain, and damages the road surface to influence the normal operation of the road surface. In contact detection, the detection device sinks on the road surface after being pressed for a long time, so that the measurement result is deviated, and the real road surface condition cannot be detected. The existing non-contact measuring tool can only detect single points of the road surface, has the defects of narrow measuring range, low measuring precision and poor sampling representativeness, can not accurately reflect the road surface state of a plurality of lanes of the whole road surface, and can not meet the actual measuring requirement.
Due to the characteristics of high speed, dense traffic flow, closed and the like of the expressway, the road surface state of each lane is inconsistent due to different traffic flow of each lane of the expressway in some special weather. The detected road surface condition is likely to be different from the actual condition. The road surface state of each lane cannot be accurately reflected in real time only by single-point detection, and early warning of vehicles ahead is achieved in advance, and a management center is prompted to timely clear road surface covering.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a remote sensing road surface detector is provided, can solve and bury formula road surface installation complicacy, destroy the road surface, the deviation appears in the measuring result after a long time. And the problems that the existing non-contact detection tool has narrow measurement range and low measurement precision and can not accurately reflect the road surface state of a plurality of lanes on the whole road surface.
In order to solve the technical problem, the utility model provides a remote sensing road surface detector, include:
a pan-tilt driving the detector to rotate in horizontal and vertical directions;
the machine shell is connected with the holder, and a laser transmitter and a laser receiver are arranged on the machine shell;
the laser transmitter transmits infrared laser to a road surface;
a laser receiver that receives infrared laser light reflected from a road surface for detecting a road surface state and cover information;
and the signal processing unit is connected with the laser transmitter and the laser receiver and is used for processing the road surface meteorological information.
Remote sensing road surface detector's beneficial effect lies in: the problem of traditional remote sensing road surface detector only to single-point sampling, the measurement result appears the representativeness weak easily when carrying out the even fake of whole highway section, establishes the error big is solved. The utility model discloses can realize the interior multiple spot real-time detection of highway section, measure position number, position, check time, patrol and examine the cycle, patrol and examine the orbit etc. and all can set up wantonly, and patrol and examine the orbit and support real-time adjustment and many sets of orbit and predetermine, conveniently different seasons carry out the difference and patrol and examine the task, and equipment supports simultaneously that automatic patrols and examines and manually patrol and examine multiple mode. In the automatic inspection mode, the signal processing unit in the equipment can automatically inspect according to locally or remotely configured scheme parameters such as inspection point positions, track paths, detection time and the like, and form a comprehensive detection message and send the message to a background monitoring center, so that a traffic management department can conveniently and comprehensively know factors such as pavement conditions, wet and slippery coefficients, covering thickness, pavement temperature and the like of a multi-lane pavement, more reasonable traffic maintenance and induction measures are made, and the road operation maintenance efficiency, the road traffic efficiency and the like in the case of disaster weather are improved.
Preferably, a first motor and a second motor are arranged in the holder; the first motor drives the detector to rotate in the horizontal direction; the second motor drives the detector to rotate in the vertical direction; the signal processing unit controls the holder.
Preferably, the maximum angle of horizontal rotation of the detector is 350 degrees; the maximum angle of vertical rotation of the detector is 90 degrees.
Preferably, the shell is of an aluminum alloy cuboid hollow structure, and a circuit board is mounted inside the shell; the laser transmitter and the laser receiver are arranged on the same plane in parallel in the up-down direction and fixed at the front end of the shell.
Preferably, the center of the front end of the shell is provided with two through holes for installing and fixing the laser transmitter and the laser receiver; the laser transmitter and the laser receiver are two receiving tubes and two transmitting tubes which extend forwards and backwards; the end faces of the front ends of the laser emitting tube and the laser receiving tube are positioned on inclined planes which are gradually inclined backwards from top to bottom; an emission lens is arranged in the laser emission tube close to the rear end; and a receiving lens is arranged in the laser receiving tube close to the rear end.
Preferably, the front end of the shell is provided with an infrared temperature detector for monitoring the road surface temperature and the environment temperature in real time.
Preferably, a heater is arranged in the shell, and the signal processing unit controls the operation and stop of the heater; the heater heats the transmit lens and the receive lens when the temperature is below a threshold environment.
Preferably, the laser transmitter transmits infrared laser with three different modulation frequencies to the road surface; the laser receiver receives infrared laser light of three different modulation frequencies reflected from the road surface.
Preferably, a protective cover is arranged above the shell for fixing the laser transmitter and the laser receiver; the protective cover comprises an ABS engineering plastic top; the rear end of the protective cover is arc-shaped, and the shell, the laser transmitter and the laser receiver are wholly wrapped in the protective cover; the protective cover is fixed with the shell at the bottom of the shell through bolts.
Preferably, the lower end of the shell is connected with the holder through a connecting piece; the cradle head is connected with the signal processing unit arranged in the shell through a wire.
Description of the drawings:
FIG. 1 is a schematic structural view of the remote sensing road surface detector of the present invention;
fig. 2 is a schematic view of the installation of the portal frame of the present invention;
FIG. 3 is a schematic view of a roadside installation according to an embodiment of the present invention;
figure 4 is the remote sensing road surface detector theory of operation schematic diagram.
Description of reference numerals:
1. a holder;
2. a connecting member;
3. a housing;
4. an infrared temperature measuring sensor;
5. a laser receiver;
6. a laser transmitter;
7. a shield.
Detailed Description
As shown in FIG. 1, the remote sensing road surface detector comprises: cloud platform 1, connecting piece 2, casing 3, infrared temperature sensor 4, laser receiver 5, laser emitter 6, protection casing 7, heater 8, signal processing unit 9.
The remote sensing road surface detector equipment bottom is cloud platform 1, is carrying on cloud platform 1 and detecting the partial device that carries out horizontal and perpendicular two directions rotations. Two motors are arranged in the tripod head. One of the two motors is responsible for rotation in the horizontal direction and the other is responsible for rotation in the vertical direction. The angle of horizontal rotation is 350 degrees and the angle of vertical rotation is 90 degrees. The signal processing unit 10 controls the holder 1 to realize real-time detection of the lanes on the highway.
Remote sensing road surface detector equipment has solved traditional remote sensing road surface detector and has only been to the single-point sampling, and the measuring result appears the representativeness not strong easily when carrying out the even false of whole highway section, establishes the big problem of error. The utility model discloses can realize the interior multiple spot real-time detection of highway section, measure position number, position, check time, patrol and examine the cycle, patrol and examine the orbit etc. and all can set up wantonly, and patrol and examine the orbit and support real-time adjustment and many sets of orbit and predetermine, conveniently different seasons carry out the difference and patrol and examine the task, and equipment supports simultaneously that automatic patrols and examines and manually patrol and examine multiple mode. In the automatic inspection mode, the signal processing unit in the equipment can automatically inspect according to locally or remotely configured scheme parameters such as inspection point positions, track paths, detection time and the like, and form a comprehensive detection message and send the message to a background monitoring center, so that a traffic management department can conveniently and comprehensively know factors such as pavement conditions, wet and slippery coefficients, covering thickness, pavement temperature and the like of a multi-lane pavement, more reasonable traffic maintenance and induction measures are made, and the road operation maintenance efficiency, the road traffic efficiency and the like in the case of disaster weather are improved.
The upper end of the holder 1 is connected with the shell 3 through the connecting piece 2 and is fixed at the bottom of the shell 3. The casing 3 is a cuboid hollow structure made of aluminum alloy, and a circuit board is arranged inside the casing. Two through holes are formed in the center of the front end of the shell 3 and used for installing and fixing the laser transmitter 6 and the laser receiver 5. The laser transmitter 6 and the laser receiver 5 are two receiving tubes and two transmitting tubes extending back and forth, and the end faces of the front ends of the receiving tubes and the transmitting tubes are arranged on inclined planes which are gradually inclined backwards from top to bottom, so that more infrared light can be transmitted and received. And the position close to the rear end in the tube is respectively provided with a transmitting lens and a receiving lens.
The transmitting tube and the receiving tube are made of heat conducting materials. The rear ends of the transmitting tube and the receiving tube are connected with a through hole at the front end of the shell through external threads, and a heater 8 is arranged at the joint. The front end of the shell is provided with an infrared temperature measuring sensor 4 which can monitor the road surface temperature and the environment temperature in real time. And controls the operation and stop of the heater through the signal processing unit. When the lens is in a low-temperature environment, the lens arranged in the tube can be heated by the heater through the transmitting tube and the receiving tube, so that the temperatures of the front side and the rear side of the transmitting lens and the front side and the rear side of the receiving lens are consistent, and fog and frost on the lens are avoided.
Be equipped with protection casing 7 above the casing 3 of fixed laser emitter 6, laser receiver 5, protection casing 7 is ABS engineering plastics material top, rear end for the arc with casing and laser emitter 6 and laser receiver 5 whole parcel including, fixed with the casing through the bolt in casing 3 bottoms, wholly protect equipment.
The remote sensing road surface detector supports various output modes such as RS485 serial port wired output, private network wireless output, public network wireless output and the like, and outputs road surface temperature, road surface state, covering thickness, wet slip coefficient, state information, early warning, warning information and the like of each lane of the road surface in real time. The remote sensing road surface detector can monitor the working state, early warning, warning and other information of the remote sensing road surface detector in real time conveniently by a local management and remote monitoring center platform, and performs corresponding management and maintenance.
Referring to fig. 1, a remote sensing road surface detector includes: cloud platform 1, connecting piece 2, casing 3, infrared temperature sensor 4, laser receiver 5, laser emitter 6, protection casing 7, heater 8, signal processing unit 9. The housing 3 has a signal processing unit mounted therein. The laser transmitter 6 and the laser receiver 5 are arranged and fixed at the front end of the shell 3 in parallel in the vertical direction on the same plane. The shell 3 is provided with a protective cover 7 which wraps the laser emitter 6 and the laser receiver 5 and is fixed at the bottom of the shell 3. The lower end of the shell 3 is connected with the cloud platform 1 through the connecting piece 2, and the cloud platform 1 is connected with the signal processing unit 9 arranged inside the shell 3 through a wire.
Referring to fig. 2, fig. 3 and fig. 4, the working principle schematic diagram of the remote sensing road surface detector comprises a power module, a signal processing unit, an emission control circuit, a laser emitter, a laser receiver, an a/D conversion circuit, an RS485 output circuit, a heater, an infrared temperature measurement sensor and a holder. The non-contact measurement of the road surface condition is realized based on the infrared spectrum characteristics of water, ice and snow, and the infrared rays with three different wavelengths are firstly used for irradiating a target object through an emitting lens to form an irradiation surface, and then optical signals reflected, absorbed and reflected by the irradiation surface are received. And detecting the first lane by matching the cradle head, finishing the detection of the first lane, and controlling the cradle head to rotate by a certain angle by the signal processing unit to detect the second lane. And by analogy, scanning all lanes on the whole road surface. And detecting the road surface condition of each lane of the whole road surface by using a corresponding algorithm according to the magnitude relation of the return signals.
As shown in fig. 2 and 3, the remote sensing road surface detector supports various installation modes and installation environments, supports roadside installation, also supports portal frame installation, can be laid with the help of the existing roadside camera upright stanchion or the existing ETC portal frame, because the product is small in size, various output modes, convenient installation, characteristics such as the detection point location is comprehensive are suitable for the large-density layout of the whole highway section, realizes the whole-road perception monitoring of the highway road surface state, and satisfies the demands of technical development such as intelligent traffic, automatic driving, vehicle-road cooperation, emergency treatment, intelligent winter maintenance on the refined whole-road section traffic meteorological information service.
The present invention is not limited to the embodiments discussed above. The foregoing description of the specific embodiments is intended to illustrate and describe the technical solutions of the present invention. Obvious modifications or alternatives based on the teachings of the invention should also be considered to fall within the scope of the invention. The above detailed description is provided to disclose the best mode of carrying out the invention, so that those skilled in the art can apply the invention in its various embodiments and in its various alternative ways to achieve the objects of the invention.
Claims (10)
1. A remote sensing road surface detector, comprising:
a pan-tilt driving the detector to rotate in horizontal and vertical directions;
the machine shell is connected with the holder, and a laser transmitter and a laser receiver are arranged on the machine shell;
the laser transmitter transmits infrared laser to a road surface;
a laser receiver that receives infrared laser light reflected from a road surface for detecting a road surface state and cover information;
and the signal processing unit is connected with the laser transmitter and the laser receiver and is used for processing the road surface meteorological information.
2. The remote sensing road surface detector according to claim 1,
a first motor and a second motor are arranged in the tripod head;
the first motor drives the detector to rotate in the horizontal direction;
the second motor drives the detector to rotate in the vertical direction;
the signal processing unit controls the holder.
3. The remote sensing road surface detector according to claim 2,
the maximum horizontal rotation angle of the detector is 350 degrees;
the maximum angle of vertical rotation of the detector is 90 degrees.
4. The remote sensing road surface detector according to claim 1,
the shell is of an aluminum alloy cuboid hollow structure, and a circuit board is arranged in the shell;
the laser transmitter and the laser receiver are arranged on the same plane in parallel in the up-down direction and fixed at the front end of the shell.
5. The remote sensing road surface detector according to claim 4,
two through holes are formed in the center of the front end of the shell and used for installing and fixing the laser transmitter and the laser receiver;
the laser transmitter and the laser receiver are two receiving tubes and two transmitting tubes which extend forwards and backwards;
the end faces of the front ends of the laser emitting tube and the laser receiving tube are positioned on inclined planes which are gradually inclined backwards from top to bottom;
an emission lens is arranged in the laser emission tube close to the rear end;
and a receiving lens is arranged in the laser receiving tube close to the rear end.
6. The remote sensing road surface detector according to claim 1,
the front end of the shell is provided with an infrared temperature detector for monitoring the road surface temperature and the environment temperature in real time.
7. The remote sensing road surface detector according to claim 6,
a heater is arranged in the shell, and the signal processing unit controls the operation and stop of the heater;
the heater heats the transmit lens and the receive lens when the temperature is below a threshold environment.
8. The remote sensing road surface detector according to claim 1,
the laser transmitter transmits infrared laser with three different modulation frequencies to a road surface;
the laser receiver receives infrared laser light of three different modulation frequencies reflected from the road surface.
9. The remote sensing road surface detector according to claim 1,
a protective cover is arranged above the shell for fixing the laser transmitter and the laser receiver;
the protective cover comprises an ABS engineering plastic top;
the rear end of the protective cover is arc-shaped, and the shell, the laser transmitter and the laser receiver are wholly wrapped in the protective cover;
the protective cover is fixed with the shell at the bottom of the shell through bolts.
10. The remote sensing road surface detector according to claim 1,
the lower end of the shell is connected with the holder through a connecting piece;
the cradle head is connected with the signal processing unit arranged in the shell through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022987439.1U CN214067959U (en) | 2020-12-10 | 2020-12-10 | Remote sensing road surface detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022987439.1U CN214067959U (en) | 2020-12-10 | 2020-12-10 | Remote sensing road surface detector |
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| CN214067959U true CN214067959U (en) | 2021-08-27 |
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| CN202022987439.1U Active CN214067959U (en) | 2020-12-10 | 2020-12-10 | Remote sensing road surface detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114550496A (en) * | 2022-03-10 | 2022-05-27 | 长安大学 | Highway information early warning device |
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- 2020-12-10 CN CN202022987439.1U patent/CN214067959U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114550496A (en) * | 2022-03-10 | 2022-05-27 | 长安大学 | Highway information early warning device |
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