CN203637686U - Vehicle-mounted measurement device for detecting crossing height of traffic facilities - Google Patents
Vehicle-mounted measurement device for detecting crossing height of traffic facilities Download PDFInfo
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- CN203637686U CN203637686U CN201320798497.7U CN201320798497U CN203637686U CN 203637686 U CN203637686 U CN 203637686U CN 201320798497 U CN201320798497 U CN 201320798497U CN 203637686 U CN203637686 U CN 203637686U
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Abstract
The utility model belongs to the field of traffic safety and discloses a vehicle-mounted measurement device for detecting crossing height of traffic facilities. The vehicle-mounted measurement device comprises a camera for collecting images of the traffic facilities in front of vehicles and an image processor for extracting the crossing height of the traffic facilities in front of the vehicles to judge whether passing is safe or not. A video input end of the image processor is electronically connected with a video output end of the camera. Two I/O output ends of the image processor are correspondingly electrically connected with a green LED indicating safe passing and a red LED indicating dangerous passing. The vehicle-mounted measurement device is capable of detecting the crossing height of the traffic facilities in front of the vehicles, evaluating the safety to pass the traffic facilities, indicating drivers and bringing convenience to a safe and free trip.
Description
Technical field
The utility model belongs to motor traffic safety field, and particularly a kind of traffic facilities are by the car-mounted device of testing oneself of height.
Background technology
Easily and fast, unobstructed is the important need of automobile trip.From traffic psychology angle analysis, quick, unobstructed trip can make driver joyful, thereby actv. improves driver drives vehicle safety; From macro-traffic transport total output value, quick, unobstructed trip can improve communications and transportation capacity rating to a great extent.Therefore, quick, unobstructed trip is to chaufeur inherently safe or all significant to whole communications and transportation development.
At present, the general Foreign Experience of China's road signs, traffic sign stands in great numbers, and single traffic mark quantity of information is excessive, and identification and legibility are poor, and exist a large amount of traffic signs that un-reasonable phenomenon is set.A lot of road junctions have all utilized the limit for height traffic facilities such as overpass or short distance tunnel, but due to a variety of causes such as construction, carelessness, these places that limitation in height traffic sign should be set but do not arrange, or mark demonstration is unobvious, even occur the situation of error flag.To truck, particularly compared with high truck, if do not know the actual height in these overpass or tunnel, probably cause vehicle to be stuck under these traffic facilities, bring serious inconvenience to people's quick, unobstructed trip.
Utility model content
The purpose of this utility model is to provide a kind of traffic facilities by the car-mounted device of testing oneself of height, utilizes this device can detect the height that passes through of front traffic facilities, obtains the safety evaluation by these traffic facilities, and points out to chaufeur.Bring convenience to people's quick, unobstructed trip.
For achieving the above object, the utility model is achieved by the following technical solutions.
Traffic facilities, by the car-mounted device of testing oneself of height, is characterized in that: comprise the camera for collection vehicle front traffic facilities image, for extracting passing through height and judging by whether safe image processor of vehicle front traffic facilities image; The video output terminals of the video inputs electrical connection camera of described image processor, two I/O mouth correspondences of described image processor are electrically connected with green LED lamp and a red LED lamp for indicating by danger for safety instruction.
Feature of the present utility model and improvement are:
Described camera adopts Mai Dekesi MS-sudden peal of thunder 2USB2.0 camera, is arranged on vehicle windscreen top centre.
Described image processor is ARM9 treater, and model is S3C2410.
Described green LED lamp and red LED lamp, be arranged on respectively on meter panel of motor vehicle.
The utility model has adopted after technique scheme, mainly adopts camera and ARM9 treater, and investment cost is few, simplicity of design, reliability are high, and does not need vehicle too much to reequip.When system works, the processing of road image and calculate by ARM9 treater and directly complete by safety analysis, intelligent high; Directly perceived, reliable to the prompting of chaufeur by green LED lamp and red LED lamp.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is that a kind of traffic facilities of the present utility model are by the circuit connection diagram of the car-mounted device of testing oneself of height;
Fig. 2 is that a kind of traffic facilities of the present utility model are by the scheme of installation of the car-mounted device of testing oneself of height;
In figure: 1, camera; 2, green LED lamp and red LED lamp.
Detailed description of the invention
With reference to Fig. 1, a kind of traffic facilities of the present utility model are by the circuit connection diagram of the car-mounted device of testing oneself of height.This device comprises the camera 1 for collection vehicle front traffic facilities image, for extracting passing through height and judging by whether safe image processor of vehicle front traffic facilities image; The video output terminals of the video inputs electrical connection camera 1 of described image processor, two I/O mouth correspondences of described image processor are electrically connected with green LED lamp and a red LED lamp for indicating by danger for safety instruction.
Camera 1 adopts Mai Dekesi MS-sudden peal of thunder 2USB2.0 camera, and valid pixel 6,000,000 is fixed on vehicle windscreen top centre, and level is installed, as shown in Figure 2, and the traffic facilities image in collection vehicle front.
Image processor is ARM9 treater, model is S3C2410, ARM9 treater is arranged on under-dash in car, the image of the vehicle front traffic facilities that camera 1 is collected is processed, whether identify vehicle front has traffic facilities restriction vehicle to pass through, and automatically measure these traffic facilities pass through height, while contrasts with the height that vehicle can pass through, after contrast, chaufeur is pointed out for the red LED lamp of indicating by danger by a green LED lamp for safety instruction and one.
In all traffic facilities, be mainly limit for height traffic facilities on vehicle pass through have impact, so be mainly that limit for height traffic facilities are carried out to image processing, the process of image processing is as follows:
Image pretreatment: the pretreated object of image is the interfere information of removing in the road image of camera collection.Due to the vehicle running environment property of there are differences; in the road image that camera collects, often there will be with limit for height traffic facilities by highly irrelevant information; these information can produce interference for follow-up high computational; therefore in image processing process, first road image is carried out to filtering; the concrete median filtering algorithm that adopts carries out; for the some pixels in image, calculate this some aviation value of the interior pixel gray value of 3 × 3 scopes around, the gray value with this aviation value as this point.Can substantially eliminate existing interfere information in the road image that camera gathers by using 3 × 3 median filtering algorithm.
The extraction of limit for height traffic facilities profile in road image: to carrying out binary conversion treatment through the pretreated road image of image, extract the shape of limit for height traffic facilities in road image, obtain the contour images of limit for height traffic facilities.Detailed process is for setting a gray threshold, for the some points in image, if the gray value of this point is more than or equal to threshold value, think that this point belongs to limit for height traffic facilities in-scope, change the gray value of this point into 0, otherwise, if the gray value of this point is less than threshold value, think that this point does not belong to limit for height traffic facilities region, changes the gray value of this point into 1.After to a two field picture, computing completes in this way, the shape that gray value 0 part in road image forms is the shape of limit for height traffic facilities.
The extraction of unique point in limit for height traffic facilities: choosing profile middle and upper part corner is First Characteristic point, the intersection point of choosing same lateral brace and road surface is Second Characteristic point, the distance between 2 is the height that passes through of limit for height traffic facilities.Because the passage of existing limit for height traffic facilities is generally all thought rectangle or approximate rectangular, top corner place corner angle are clearly demarcated, be easy to distinguish, also be the vertex of this passage, and pillar is same in corner with the intersection point on ground, is easy to distinguish, also be the nadir of passage simultaneously, therefore in road image, identify after the profile of limit for height traffic facilities, extract this 2 point, can determine unique point.
Indicate by safe green LED lamp and indicate by dangerous red LED lamp, being arranged on respectively the region that meter panel of motor vehicle upper left side chaufeur is easily noticed, being used to refer to whether possess good crossing ability.
Camera 1 is connected to the USB interface 7 of ARM9 treater by usb data line, greensignal light is connected to the I/O interface 8 of ARM9 treater by data line, and red eye is connected to the I/O interface 9 of ARM9 treater by data line.
The principle of work of this device: the height that this vehicle that prestores in ARM9 treater can pass through, camera 1 by the image transmitting of the front traffic facilities that collect to ARM9 treater, ARM9 treater receives the image of camera transmission, whether identify road front by digital image processing techniques has the traffic facilities restriction vehicles such as overpass to pass through, and obtain the accurate location of traffic facilities and pass through height by image processing techniques, can be by aspect ratio with the vehicle prestoring by the height that passes through that obtains traffic facilities, obtain by the safety evaluation of these place's traffic facilities, if these traffic facilities pass through the height height that can pass through higher than this vehicle, greensignal light is lighted, to chaufeur prompting safety, if these traffic facilities pass through the height height that can pass through less than or equal to this vehicle, red eye is lighted, dangerous to chaufeur prompting, can not pass through.
Main camera and the ARM9 treater of adopting, investment cost is few, simplicity of design, reliability are high, and does not need vehicle too much to reequip; Complete the processing of road image and by the analytical calculation of safety by ARM9 treater, intelligent high; Directly perceived, reliable to the prompting of chaufeur by green LED lamp and red LED 2 lamps.
Although below by reference to the accompanying drawings embodiment of the present utility model is described, but the utility model is not limited to above-mentioned specific embodiments and applications field, above-mentioned specific embodiments is only schematic, guiding, instead of restrictive.Those of ordinary skill in the art, under the enlightenment of specification sheets, in the case of not departing from the scope that the utility model claim protects, can also make a variety of forms, and these all belong to the row of the utility model protection.
Claims (4)
1. traffic facilities are by the car-mounted device of testing oneself of height, it is characterized in that: comprise the camera for collection vehicle front traffic facilities image, for extracting passing through height and judging by whether safe image processor of vehicle front traffic facilities image; The video output terminals of the video inputs electrical connection camera of described image processor, two I/O mouth correspondences of described image processor are electrically connected with green LED lamp and a red LED lamp for indicating by danger for safety instruction.
2. a kind of traffic facilities according to claim 1 are by the car-mounted device of testing oneself of height, and described camera adopts Mai Dekesi MS-sudden peal of thunder 2USB2.0 camera, is arranged on vehicle windscreen top centre.
3. a kind of traffic facilities according to claim 1 are by the car-mounted device of testing oneself of height, and described image processor is ARM9 treater, and model is S3C2410.
4. a kind of traffic facilities according to claim 1 are by the car-mounted device of testing oneself of height, and described green LED lamp and red LED lamp, be arranged on respectively on meter panel of motor vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798497.7U CN203637686U (en) | 2013-12-05 | 2013-12-05 | Vehicle-mounted measurement device for detecting crossing height of traffic facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798497.7U CN203637686U (en) | 2013-12-05 | 2013-12-05 | Vehicle-mounted measurement device for detecting crossing height of traffic facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203637686U true CN203637686U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320798497.7U Expired - Fee Related CN203637686U (en) | 2013-12-05 | 2013-12-05 | Vehicle-mounted measurement device for detecting crossing height of traffic facilities |
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| Country | Link |
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| CN (1) | CN203637686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111539279A (en) * | 2020-04-14 | 2020-08-14 | 杭州鸿泉物联网技术股份有限公司 | Road height limit height detection method, device, equipment and storage medium |
-
2013
- 2013-12-05 CN CN201320798497.7U patent/CN203637686U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111539279A (en) * | 2020-04-14 | 2020-08-14 | 杭州鸿泉物联网技术股份有限公司 | Road height limit height detection method, device, equipment and storage medium |
| CN111539279B (en) * | 2020-04-14 | 2023-08-15 | 杭州鸿泉物联网技术股份有限公司 | Road height limit detection method, device, equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141205 |
|
| EXPY | Termination of patent right or utility model |