CN111896967A - Measuring device for measuring motor vehicle wheel base based on laser range finder - Google Patents
Measuring device for measuring motor vehicle wheel base based on laser range finder Download PDFInfo
- Publication number
- CN111896967A CN111896967A CN202010748654.8A CN202010748654A CN111896967A CN 111896967 A CN111896967 A CN 111896967A CN 202010748654 A CN202010748654 A CN 202010748654A CN 111896967 A CN111896967 A CN 111896967A
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- China
- Prior art keywords
- range finder
- laser range
- motor vehicle
- wheel
- measuring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a measuring device for measuring the wheel base of a motor vehicle based on a laser range finder, which belongs to the technical field of traffic detection and comprises the laser range finder, wherein the laser range finder is horizontally arranged, a lane is arranged below the laser range finder, a laser radar is arranged inside the laser range finder and used for scanning the surrounding environment, a data processing mechanism is fixedly arranged at the bottom of the laser range finder and used for analyzing and inputting data of the laser range finder, and the bottom of a data processing module is fixedly arranged on the ground surface. The invention starts a scanning mode through the laser radar positioned in front of the lane, scans the surrounding environment, the vehicle slowly advances along the lane, the middle of the lane can only scan the front half part of the wheel because the scanning surface of the laser radar is a horizontal plane with the height of 10cm from the ground, the processing system analyzes the position of the front edge of the wheel through a graph, and the distance between the wheel and the front edge of the wheel is the wheel base.
Description
Technical Field
The invention relates to a measuring device for measuring the wheel base of a motor vehicle based on a laser range finder, relates to the technical field of traffic detection, and particularly relates to a measuring device for measuring the wheel base of the motor vehicle based on the laser range finder.
Background
The national standard GB38900-2020 6.3.2 states that the wheel base of the motor vehicle is in accordance with the motor vehicle product bulletin and the motor vehicle delivery qualification certificate during registration and registration safety inspection, and the error is not more than +/-1% or +/-50 mm. When a truck and a trailer are registered, the wheel base of the truck is required to be checked.
At present, the wheelbase of a motor vehicle is mostly measured manually, and wheelbase difference measuring instruments of some instruments have wheelbase measuring functions. The following problems exist in the prior art:
in the prior art, for example, the chinese patent application number is: CN201610145306.5 describes a method for measuring wheel base and wheel base by combining a laser range finder and a laser reflection baffle, wherein the laser range finder and the laser reflection baffle are fixed on a fixture, and the fixture is arranged on a wheel tire. And measuring the distance of the axle by using a laser range finder, and further calculating the wheelbase difference. However, the laser range finder and the laser reflection baffle are required to be installed on the wheel together with the fixture during measurement, manual matching installation is required in the prior art during measurement, the installation and measurement process is long, the manual measurement speed of automatic measurement cannot be achieved, two persons are required to be matched, the labor cost is high, and the detection result is not attractive, so that the applicability is poor, and structural innovation is required to solve the specific problem.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a measuring device for measuring the wheel base of a motor vehicle based on a laser range finder, so as to solve the problems that the laser range finder, a laser reflection baffle and a fixture are required to be installed on a wheel together, the manual matching installation is required in the prior art during measurement, the installation and measurement process is long, the automatic measurement and manual measurement cannot be realized, the manual measurement speed is slow, two persons are required to be matched, the labor cost is high, and the detection result is not attractive, so that the applicability is poor, and the structural innovation is required to solve the specific problems.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a measuring device based on laser range finder measures motor vehicle wheel base, includes laser range finder, laser range finder sets up for the level, laser range finder's below is provided with the lane, just laser range finder's inside be provided with laser radar, and laser radar is used for scanning the surrounding environment, laser range finder's bottom fixed mounting has data processing mechanism, and data processing mechanism is used for carrying out data analysis and input to laser range finder, data processing module's bottom fixed mounting is on the earth's surface.
The technical scheme of the invention is further improved as follows: the data processing mechanism is arranged on one side of the lane.
The technical scheme of the invention is further improved as follows: and a laser radar scanning surface on the laser range finder is a horizontal plane with the ground clearance of 10 cm.
The technical scheme of the invention is further improved as follows: the surface of the lane is in contact connection with four motor vehicle wheels, wherein the number of the motor vehicle wheels is one, two, three and four.
The technical scheme of the invention is further improved as follows: the front end of each motor vehicle wheel is arranged as a wheel front edge, and the wheel front edge is used for feeding back signals to the laser range finder.
The technical scheme of the invention is further improved as follows: and the wiring terminal of the laser range finder is in signal connection with the wiring terminal of the data processing mechanism.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
the invention provides a measuring device for measuring the wheel base of a motor vehicle based on a laser range finder, which is ingenious in design and adopts the arrangement of a laser radar, and when in detection, the laser radar positioned in front of a lane starts a scanning mode to scan the surrounding environment; the vehicle slowly advances along the lane, and the scanning surface of the laser radar is a horizontal plane with the height from the ground being 10 cm; the middle of the lane can only be swept to the front half part of the wheel, the position of the front edge of the wheel is analyzed by the processing system through the graph, and the distance between the wheel and the front edge of the wheel is the wheel base.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an actual measurement structure of the laser range finder of FIG. 1 according to the present invention;
FIG. 3 is a system block diagram of the measurement structure of the laser rangefinder of FIG. 1 according to the present invention.
Wherein, 1, laser range finder; 2. a first wheel; 3. a second wheel; 4. a third wheel; 5. a fourth wheel; 6. a lane; 7. the front edge of the wheel; 8. and a data processing mechanism.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-3, the present invention provides a measuring device for measuring the wheel base of a motor vehicle based on a laser range finder, which comprises a laser range finder 1, wherein the laser range finder 1 is arranged horizontally, a lane 6 is arranged below the laser range finder 1, in this embodiment, the surface of the lane 6 is in contact connection with motor vehicle wheels, the number of the motor vehicle wheels is four, and the motor vehicle wheels are respectively wheel one 2, wheel two 3, wheel three 4 and wheel four 5, wherein the front end of each motor vehicle wheel is arranged as a wheel front edge 7, the wheel front edge is used for feeding back signals to the laser range finder 1, a laser radar is arranged inside the laser range finder 1 and is used for scanning the surrounding environment, the laser radar scanning surface on the laser range finder 1 is a horizontal plane with the height of 10cm from the ground, the processing system analyzes the position of the wheel front edge through graphics, the distance between the wheel and the front edge of the wheel is the wheel base.
Example 2
As shown in fig. 1-fig. 3, the present invention provides a measuring device for measuring a wheel base of a motor vehicle based on a laser range finder, in this embodiment, a data processing mechanism 8 is fixedly installed at the bottom of the laser range finder 1, in this embodiment, a terminal of the laser range finder 1 is in signal connection with a terminal of the data processing mechanism 8, the data processing mechanism 8 is used for analyzing and inputting data to the laser range finder 1, and the bottom of the data processing module 8 is fixedly installed on the ground surface, in this embodiment, the data processing mechanism 8 is located at one side of a lane 6, and binocular images of a tire crown of the motor vehicle are acquired, so that spatial coordinates of a wheel crown surface point are calculated, and further, a height difference between a groove and a tire crown surface of the motor vehicle is calculated.
The working principle of the measuring device for measuring the wheel base of the motor vehicle based on the laser distance measuring instrument is described in detail below.
When in detection: the laser radar on the laser range finder 1 positioned in front of the lane 6 starts a scanning mode, scans the surrounding environment, the vehicle slowly advances along the lane, the scanning surface of the laser radar is a horizontal plane with the height of 10cm from the ground, the middle of the lane 6 can only scan the front half part of the wheels of the motor vehicle, the processing system analyzes the position of the front edge of the wheels through graphs, and the distance between the wheels and the front edge of the wheels is the axle distance.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (6)
1. The utility model provides a measuring device based on laser range finder measures motor vehicle wheel base, includes laser range finder (1), its characterized in that: laser range finder (1) sets up for the level, the below of laser range finder (1) is provided with lane (6), just the inside of laser range finder (1) be provided with laser radar, and laser radar is used for scanning the surrounding environment, the bottom fixed mounting of laser range finder (1) has data processing mechanism (8), and data processing mechanism 8 is used for carrying out data analysis and input to laser range finder (1), the bottom fixed mounting of data processing module (8) is on the earth's surface.
2. The device for measuring the wheel base of the motor vehicle based on the laser range finder as claimed in claim 1, wherein: the data processing mechanism (8) is arranged on one side of the lane (6).
3. The device for measuring the wheel base of the motor vehicle based on the laser range finder as claimed in claim 1, wherein: and a laser radar scanning surface on the laser range finder (1) is a horizontal plane with the ground clearance of 10 cm.
4. The device for measuring the wheel base of the motor vehicle based on the laser range finder as claimed in claim 1, wherein: the surface of the lane (6) is connected with four motor vehicle wheels in a contact manner, wherein the number of the motor vehicle wheels is one (2), two (3), three (4) and four (5).
5. The device for measuring the wheel base of the motor vehicle based on the laser range finder as claimed in claim 4, wherein: the front end of each motor vehicle wheel is set as a wheel front edge (7), and the wheel front edge is used for feeding back signals to the laser range finder (1).
6. The device for measuring the wheel base of the motor vehicle based on the laser range finder as claimed in claim 1, wherein: and the wiring terminal of the laser range finder (1) is in signal connection with the wiring terminal of the data processing mechanism (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010748654.8A CN111896967A (en) | 2020-07-30 | 2020-07-30 | Measuring device for measuring motor vehicle wheel base based on laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010748654.8A CN111896967A (en) | 2020-07-30 | 2020-07-30 | Measuring device for measuring motor vehicle wheel base based on laser range finder |
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| Publication Number | Publication Date |
|---|---|
| CN111896967A true CN111896967A (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010748654.8A Pending CN111896967A (en) | 2020-07-30 | 2020-07-30 | Measuring device for measuring motor vehicle wheel base based on laser range finder |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030080284A (en) * | 2002-04-04 | 2003-10-17 | 엘지산전 주식회사 | System and method for judge the kind of vehicle |
| CN205209441U (en) * | 2015-12-13 | 2016-05-04 | 山东交通学院 | Axle for vehicle is apart from automatic measuring device |
| CN105890542A (en) * | 2016-06-02 | 2016-08-24 | 合肥市极点科技有限公司 | Outside dimension measuring system and method of motor vehicle |
-
2020
- 2020-07-30 CN CN202010748654.8A patent/CN111896967A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030080284A (en) * | 2002-04-04 | 2003-10-17 | 엘지산전 주식회사 | System and method for judge the kind of vehicle |
| CN205209441U (en) * | 2015-12-13 | 2016-05-04 | 山东交通学院 | Axle for vehicle is apart from automatic measuring device |
| CN105890542A (en) * | 2016-06-02 | 2016-08-24 | 合肥市极点科技有限公司 | Outside dimension measuring system and method of motor vehicle |
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Application publication date: 20201106 |
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