CN106092606B - Driver's forward view measuring system and method - Google Patents
Driver's forward view measuring system and method Download PDFInfo
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- CN106092606B CN106092606B CN201610605154.2A CN201610605154A CN106092606B CN 106092606 B CN106092606 B CN 106092606B CN 201610605154 A CN201610605154 A CN 201610605154A CN 106092606 B CN106092606 B CN 106092606B
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- direction guiding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention provides a kind of driver's forward view measuring systems, including：Reception device, simulator and central controller；Wherein, the reception device includes：Light receiver screen and ground survey platform；It is transformed into electric signal according to by the optical signal of reception, measures the angle value of coordinate and emulation mode coordinate system Z plane and ground of the tested vehicle under intrinsic coordinate system；The simulator includes：Laser emitter, three direction guiding rails and the motor being placed in the three direction guiding rails terminal；The central controller receives above-mentioned scanning result and carries out calculating output to control the reception device and the simulator.The present invention calculates V2 points in the ratio of s region projections and s region areas, and then accurately quickly judges whether arbitrary vehicle meets national standard by V2 point position coordinate transforms.
Description
Technical field
The present invention relates to Automobile Measuring Techniques field, before particularly relating to a kind of driver's forward view measuring system and driver
Perimetry method.
Background technology
Since China joins WTO, international numerous well-known vehicle enterprises invest to China in succession to found the factory, they bring
Completely new automobile product also brings advanced automotive safety theory.It is proposed the test method in terms of numerous automotive safeties
Deng while domestic each vehicle enterprise also increases the Innovation Input to field of automobile safety, built and having multiple automotive safeties inspections
Laboratory is surveyed, and be largely related to detection, experiment in terms of automotive safety, tentatively has accumulated certain design and experiment warp
It tests, but also has prodigious gap compared with the advanced test method in terms of the automotive safety of external vehicle enterprise.Especially for vapour
Vehicle driver's field of front vision measures the development of equipment, still belongs to the starting stage at home.Front visual field of automobile driver range is
Vehicle active safety can an important indicator, automobile have good driver's field of front vision for reduce traffic accident,
Ensure that occupant safety is of great significance to.
Currently, domestic major automotive check mechanism is equipped with corresponding forward view detection device, can complete to test.It is main
Method to be used is " looking for a method ", and measuring principle is the probe contacts windshield or A columns using three-dimensional coordinate measuring instrument,
The coordinate value of contact is by three-dimensional coordinate measuring instrument hardware transport to computer, using the program finished in computer, calculating
Go out the point to be compared with relation line or the angle in face, then the angle required with standard with eyespot (V1, V2 point) or Pm point lines,
It is popped one's head in by continuous moving, the point met the requirements of the standard is finally found on windshield and A columns.However automobile A column size and
The influence that position is differed to Chinese herbaceous peony sight is very big, often because the design of A columns is unreasonable sight blind area occurs, to lead
Cause the generation of safety accident.Therefore, in order to ensure vehicle field of front vision design reasonability, it is desirable to be able to detect car steering
The detection device of member's field of front vision verifies specified in GB11562 standards every test parameters.
Invention content
It is projected in the regions s and s in view of this, the technical problem to be solved in the present invention is to provide one kind by calculating V2 points
The ratio of region area measures more fast accurate to judge whether vehicle meets the requirement of national standard.
To achieve the goals above, it is proposed that following solution：
On the one hand, a kind of driver's forward view measuring system is provided, including：Reception device, simulator and center control
Device processed；Wherein,
The reception device includes：Light receiver screen and ground survey platform；The light receiver screen, to basis
The optical signal of reception is transformed into electric signal；The ground survey platform, to measure tested vehicle under intrinsic coordinate system
The angle value of coordinate and emulation mode coordinate system Z plane and ground；
The simulator includes：Laser emitter, three direction guiding rails and the motor being placed in the three direction guiding rails terminal；
The laser emitter is placed at the three direction guiding rails terminal, to scan the light receiver screen；Three direction guiding rail is set
In on the ground survey platform, the three direction guiding rails coordinate system is overlapped with the ground survey platform coordinate system；The motor,
The light receiver screen is scanned along three direction guiding rail to control the laser emitter；
The central controller receives above-mentioned scanning result to control the reception device and the simulator
Carry out calculating output.
Preferably, further include：
Corner driving unit is placed on the ground survey platform, to control the ground survey platform relative level
Deflecting facet angle；Wherein, the corner driving unit is hydraulic stem or driving motor.
Preferably, the reception device further includes：
The guide rail being placed between the light receiver screen and horizontal plane, to provide the light receiver screen along the horizontal plane
Translation is translated according to the tested vehicle height requirement along vertical plane.
Preferably, the light receiver screen is formed by single photo resistance dense arrangement, wherein each photo resistance root
Different resistance values are exported according to the size for receiving light.
Preferably, the measuring system need to be placed in darkroom and use.
On the other hand, the embodiment of the present invention additionally provides a kind of driver's forward view measurement method, including：
Tested vehicle is placed on ground survey platform；
The ground survey platform is driven to shift, the seat of measurement and the record-shifted front and back tested vehicle characteristic point
Mark；
Control is placed in the motor in three direction guiding rail terminals, makes the laser emitter being placed at the three direction guiding rails terminal in s
Scanned in regions light receiver screen；Wherein, three direction guiding rail is placed on the ground survey platform；
Central controller receives data information, calculates V2 points and is projected in the regions s and the ratio of s region areas.
Preferably, the control is placed in the motor in three direction guiding rail terminals, makes to be placed in swashing at the three direction guiding rails terminal
Optical transmitting set further includes before s scanned in regions light receiver screens：
V2 point coordinates is inputted into the central controller, goes out the V2 on the ground survey platform using transform matrix calculations
The coordinate of point；Wherein, the transition matrix is obtained by coordinate shift.
Preferably, the light receiver screen is formed by single photo resistance dense arrangement, wherein each photo resistance root
Different resistance values are exported according to the size for receiving light.
Preferably, the central controller receives data information, calculates V2 points and is projected in the regions s and s region areas
Ratio, including：
When statistics scans the light receiver screen, the first photo resistance number of light is not received；
The area in the regions s is calculated according to the coordinate of V2 points；
With the s region areas divided by the sectional area of each photo resistance, it is photosensitive to calculate all second be scanned
Resistance number；
The ratio of the first photo resistance number and the second photo resistance number is that V2 points project and the areas s in the regions s
The ratio of domain area.
Preferably, the method need to operate in darkroom.
The embodiment of the present invention has the advantages that：
It in said program, is placed on ground survey platform using by tested vehicle, is made on three direction guiding rails by controlling motor
Laser emitter scanning ray receive screen, the feature point coordinates of tested vehicle is acquired.Utilize V2 point coordinates and state
Definition in family standard GB11562-2014 to the regions s, area divided by the light receiver screen for calculating the regions s are each photosensitive
The sectional area of resistance, and then V2 points are calculated in the ratio of s region projections and s region areas, see the tested vehicle ratio is whether
Meet national standard, and then accurately quickly judges whether arbitrary vehicle meets national standard.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of driver's forward view measuring system provided in an embodiment of the present invention；
Fig. 2 a and Fig. 2 b are a kind of structural schematic diagram of driver's forward view measuring system provided in an embodiment of the present invention；
Fig. 3 a are to control Z-direction electric rotating machine line by line in a kind of driver's forward view measuring system provided in an embodiment of the present invention
Scan schematic diagram；
Fig. 3 b are control Y-direction electric rotating machine line feed signal in a kind of driver's forward view measuring system provided in this embodiment
Figure；
Fig. 4 is a kind of step flow chart of driver's forward view measurement method provided in an embodiment of the present invention.
Specific implementation mode
To keep the embodiment of the present invention technical problems to be solved, technical solution and advantage clearer, below in conjunction with
Drawings and the specific embodiments are described in detail.
As shown in Figure 1, being a kind of structural schematic diagram of driver's forward view measuring system provided in an embodiment of the present invention.This
The embodiment of invention provides a kind of driver's forward view measuring system, including：Reception device 101, simulator 102 and center
Controller 103；Wherein,
The reception device 101 includes：Light receiver screen 110 and ground survey platform 111；The light receiver screen
110, to be transformed into electric signal according to by the optical signal of reception；The ground survey platform 111, exists to measure tested vehicle
The angle value of coordinate and emulation mode coordinate system Z plane and ground under intrinsic coordinate system；
The simulator includes 102：Laser emitter 120, three direction guiding rails 121 and it is placed in three direction guiding rail 121
Motor 122 in terminal；120 device of the Laser emission is placed at three direction guiding rails, 121 terminal, is connect to scan the light
Receive screen 110；Three direction guiding rail 121 is placed on the ground survey platform 111, the three direction guiding rails coordinate system with describedly
Planar survey platform coordinate system overlaps；The motor 122, it is right along three direction guiding rail 121 to control the laser emitter 120
The light receiver screen 110 is scanned；
The central controller 103 receives above-mentioned to control the reception device 101 and the simulator 102
Scanning result carries out calculating output.
Preferably, driver's forward view measuring system provided in an embodiment of the present invention further includes：Corner driving unit, is placed in
On the ground survey platform 111, to control 111 relative level deflection angle of the ground survey platform；Wherein, described
Corner driving unit is hydraulic stem or driving motor.
Preferably, the reception device 101 further includes：The guide rail being placed between the light receiver screen 110 and horizontal plane,
To provide the light receiver screen 110 translate along the horizontal plane or according to the tested vehicle height requirement it is flat along vertical plane
It moves.
Preferably, the light receiver screen 110 is formed by single photo resistance dense arrangement, wherein each photosensitive electricity
Root resistance exports different resistance values according to the size for receiving light.
Preferably, the measuring system need to be placed in darkroom and use, and exclude interference of the other light sources to photo resistance.
As shown in Figure 2 a, it is a kind of structural schematic diagram of driver's forward view measuring system provided in an embodiment of the present invention.
Wherein, 1 is light receiver screen upright guide rail, and 2 be light receiver screen, and 3 be light receiver screen level guide rail, and 4 be ground
Measuring table angle driving device, 5 be V2 point simulators, and 6 be ground survey platform, and 7 be Three-coordinate measurer, during 8 are
Entreat controller.Fig. 2 b are the structural schematic diagram of V2 point simulators, wherein 9 be V2 point simulator Z-direction guide rails, and 10 be V2 points
Simulator X direction guiding rails, 11 be V2 point simulator Y-direction telescopic rails, and 12 be Y-direction electric rotating machine, and 13 be Z-direction electric rotating machine,
14 be laser emitter.
The one presented below specific example scheme for measuring driver's forward view, reception device includes light receiver screen
Curtain and ground survey platform.Specifically, light receiver screen is formed by single photo resistance dense arrangement, each photo resistance root
According to the different resistance value of the exportable height of size for receiving light, there is guide rail connection between receiving screen and horizontal plane, it can be along the horizontal plane
Translation, also can be according to tested vehicle height requirement vertical translation to ensure all standing of the areas S.Corner driving dress on ground survey platform
Set (can be hydraulic stem can also be driving motor etc.) controllable platform relatively horizontally deflecting facet angle, board design shape
The angle value of state coordinate system Z plane and design ground, while being three-dimensional coordinates measurement platform, it can measure out certain point on vehicle and put down herein
Coordinate under the intrinsic coordinate system of platform.
Preferably, simulator (i.e. V2 points simulator) is made of laser emitter, tri- direction guiding rails of XYZ, wherein laser
Transmitter, which is mounted on guide rail terminal, to move adjusting coordinate along XYZ three-dimensionals with guide rail, and three direction guiding rails are mounted on ground survey platform
On, the coordinate system that three directions are formed is overlapped with the coordinate system of ground survey platform, and guide rail terminal structure installs motor, laser hair
Emitter can opposite rail terminal along Y-axis, Z axis rotate.It is a kind of driver's forward sight provided in this embodiment for example, shown in Fig. 3 b
Y-direction electric rotating machine line feed schematic diagram is controlled in wild measuring system.It can be by controlling three direction guiding rail motors by Laser emission when measurement
Device is placed in V2 point coordinates position under ground survey platform coordinate system, then controls the motor in guide rail terminal, drives Laser emission
Device from left to right, from top to bottom progressively scans light receiver screen along the regions S.It is carried for the embodiment of the present invention for example, referring to Fig. 3 a
Control Z-direction electric rotating machine progressively scans schematic diagram in a kind of driver's forward view measuring system supplied.
Preferably, central controller is the PC control device and result of light receiver screen platform and V2 point simulators
After-treatment device.The central controller major function is used for, and acquires the resistance of each photo resistance output on light receiver screen
Whether value, the relationship of resistance value and R that given threshold R, wherein central controller are received by comparing judge this photo resistance
It is irradiated with a laser；Resistance value is to be arrived by laser emitter scanning more than R, is considered as is not scanned on the contrary, and then can count
All photo resistance quantity N not being scanned.By input angle angle value, drivingly planar survey platform corner driving device deflects
Respective angles；By three points of Car design state of input (embodiment of the present invention by taking three characteristic points as an example, but not with this
Be limited) coordinate value and extraction ground survey platform under the coordinate put on the vehicle that measures, by the vehicle being parked on platform three
Coordinate system in dimension software is transformed under the intrinsic coordinate system of platform；In turn, it by the Car design V2 point coordinates of input, is converted to flat
Coordinate position under platform coordinate system, being converted according to this position coordinates and controlling and receiving screen guide rail is moved to light receiver screen
In front of V2 points specified in GB11562-2014 at 1500mm；Laser emitter is adjusted to V2 points by control V2 point simulators
It sets, and controls laser emitter and rotated along Y-axis, Z axis；The areas S are determined using in V2 point designs coordinate and GB11562-2014
Justice calculates S region areas, divided by the sectional area of each photo resistance converses photo resistance number M inswept in total；N and M
Ratio be ratio that V2 points specified in GB11562-2014 start in the regions S projection and S region areas.
As shown in figure 4, being a kind of step flow chart of driver's forward view measurement method provided in an embodiment of the present invention.Separately
On the one hand, the embodiment of the present invention additionally provides a kind of driver's forward view measurement method, described to measure including step once：
S401：Tested vehicle is placed on ground survey platform；
S402：The ground survey platform is driven to shift, measurement and the record-shifted front and back tested vehicle feature
The coordinate of point；
S403：Control is placed in the motor in three direction guiding rail terminals, makes to be placed in the Laser emission at the three direction guiding rails terminal
Device is in s scanned in regions light receiver screens；Wherein, three direction guiding rail is placed on the ground survey platform；
S404：Central controller receives data information, calculates V2 points and is projected in the regions s and the ratio of s region areas.
Preferably, the control is placed in the motor in three direction guiding rail terminals, makes to be placed in swashing at the three direction guiding rails terminal
Optical transmitting set further includes before s scanned in regions light receivers screen, that is, step S403：Described in the input of V2 point coordinates
Central controller goes out the coordinate of the V2 points on the ground survey platform using transform matrix calculations；Wherein, the transition matrix
It is obtained by coordinate shift.
Preferably, the light receiver screen is formed by single photo resistance dense arrangement, wherein each photo resistance root
Different resistance values are exported according to the size for receiving light.
Preferably, the central controller receives data information, calculates V2 points and is projected in the regions s and s region areas
Ratio, that is, step S404, specifically include：
When statistics scans the light receiver screen, the first photo resistance number of light is not received；
The area in the regions s is calculated according to the coordinate of V2 points；
With the s region areas divided by the sectional area of each photo resistance, calculate it is all be scanned (including receive
Do not receive to light and light) the second photo resistance number；
The ratio of the first photo resistance number and the second photo resistance number is that V2 points project and the areas s in the regions s
The ratio of domain area.
Preferably, the specifically used method and step of a kind of driver's forward view measurement method set forth below.First, when use
Device need to be placed in darkroom, exclude interference of the other light sources to photo resistance.The vehicle measured will be needed to reach ground survey platform
On, In-put design ground with design Z plane angle value arrive central controller, platform deflection respective angles；Use ground survey
Three-coordinates measuring machine on platform measures three (embodiment of the present invention is not limited thereto by taking three characteristic points as an example) vehicles
Characteristic point, then coordinate of the respective point under Car design state is inputted into central controller, central controller is converted by coordinate
The transition matrix between design two coordinate systems of coordinate system and ground survey platform coordinate system is obtained, during V2 point design coordinates are inputted
Controller is entreated, the coordinate position of the V2 points on ground survey platform, central controller controls can be calculated using transition matrix
V points are adjusted to the coordinate position of V2 points on ground survey platform by guide rail, control the motor of guide rail terminal by laser emitter in S
Light receiver screen is strafed in region line by line, obtains N；The area in the regions S can be calculated according to V2 point designs coordinate, divided by each
The sectional area of photo resistance can show that the ratio of all inswept photo resistance quantity M, N and M are to be advised in GB11562-2014
Fixed V2 points start the ratio of projection and S region areas in the regions S.
For embodiment of the method, since it is substantially similar to device embodiment, so description is fairly simple, it is related
Place illustrates referring to the part of device embodiment.
In conclusion the embodiment of the present invention is made using tested vehicle to be placed on ground survey platform by controlling motor
Laser emitter scanning ray on three direction guiding rails receives screen, is acquired to the feature point coordinates of tested vehicle.Utilize V2
Definition in point coordinates and standard GB/T 11562-2014 to the regions s, calculates the area divided by light receiver screen in the regions s
The sectional area of each photo resistance of curtain, and then V2 points are calculated in the ratio of s region projections and s region areas, see tested vehicle
Whether the ratio meets national standard, and then accurately quickly judges whether arbitrary vehicle meets national standard.
In each method embodiment of the present invention, the priority that the serial number of each step can not be used to limit each step is suitable
Sequence without creative efforts, changes the priority of each step for those of ordinary skill in the art
Within protection scope of the present invention.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of driver's forward view measuring system, which is characterized in that including：Reception device, simulator and center control
Device；Wherein,
The reception device includes：
Light receiver screen and ground survey platform；
The light receiver screen, the optical signal of reception is transformed into electric signal；
The ground survey platform, to measure coordinate and emulation mode coordinate system Z of the tested vehicle under intrinsic coordinate system
The angle value of plane and ground；
The simulator includes：
Laser emitter, three direction guiding rails and the motor being placed in the three direction guiding rails terminal；
The laser emitter is placed at the three direction guiding rails terminal, to scan the light receiver screen, obtains scanning knot
Fruit；
Three direction guiding rail is placed on the ground survey platform, and the three direction guiding rails coordinate system is sat with the ground survey platform
Mark system overlaps；
The motor is scanned the light receiver screen along three direction guiding rail to control the laser emitter；
The central controller receives above-mentioned scanning result and carries out to control the reception device and the simulator
Calculate output；
The light receiver screen is formed by single photo resistance dense arrangement, wherein each photo resistance is according to reception light
Size export different resistance values；
When the central controller is specifically used for the statistics scanning light receiver screen, the first photosensitive electricity of light is not received
Hinder number；The area in the regions s is calculated according to the coordinate of V2 points；With the s region areas divided by the sectional area of single photo resistance,
Calculate all the second photo resistance numbers being scanned；The ratio of the first photo resistance number and the second photo resistance number
Value is that V2 points project and the ratio of s region areas in the regions s.
2. driver's forward view measuring system according to claim 1, which is characterized in that further include：
Corner driving unit is placed on the ground survey platform, inclined to control the ground survey platform relative level
Gyration；Wherein, the corner driving unit is hydraulic stem or driving motor.
3. driver's forward view measuring system according to claim 1, which is characterized in that the reception device further includes：
The guide rail being placed between the light receiver screen and horizontal plane translates along the horizontal plane to provide the light receiver screen
Or it is translated along vertical plane according to the tested vehicle height requirement.
4. according to claim 1-3 any one of them driver's forward view measuring systems, which is characterized in that the measuring system
It need to be placed in darkroom and use.
5. a kind of driver's forward view measurement method, which is characterized in that including：
Tested vehicle is placed on ground survey platform；
The ground survey platform is driven to shift, the coordinate of measurement and the record-shifted front and back tested vehicle characteristic point；
Control is placed in the motor in three direction guiding rail terminals, makes the laser emitter being placed at the three direction guiding rails terminal in the regions s
Interior scanning ray receives screen, obtains scanning result；Wherein, three direction guiding rail is placed on the ground survey platform；
V2 points are calculated according to the scanning result to project in the regions s and the ratio of s region areas；
The light receiver screen is formed by single photo resistance dense arrangement, wherein each photo resistance is according to reception light
Size export different resistance values, the V2 points that calculate projects and the ratio of s region areas in the regions s, including：
When statistics scans the light receiver screen, the first photo resistance number of light is not received；
The area in the regions s is calculated according to the coordinate of V2 points；
With the s region areas divided by the sectional area of single photo resistance, all the second photo resistance being scanned are calculated
Number；
The ratio of the first photo resistance number and the second photo resistance number is that V2 points project and s area surfaces in the regions s
Long-pending ratio.
6. driver's forward view measurement method according to claim 5, which is characterized in that the control is placed in three direction guiding rails
Motor in terminal, make the laser emitter being placed at the three direction guiding rails terminal s scanned in regions light receivers screen it
Before, further include：
V2 point coordinates is inputted into central controller, the seat of the V2 points on the ground survey platform is gone out using transform matrix calculations
Mark；Wherein, the transition matrix is obtained by coordinate shift.
7. driver's forward view measurement method according to claim 5 or 6, which is characterized in that the method need to be in darkroom
Middle operation.
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| CN107449617B (en) * | 2017-08-11 | 2019-06-11 | 西华大学 | A kind of method of automobile ergonomics view verification |
| CN108982120A (en) * | 2018-07-26 | 2018-12-11 | 北京新能源汽车股份有限公司 | A kind of automobile back view verifying device |
| CN111521414A (en) * | 2020-06-19 | 2020-08-11 | 上海机动车检测认证技术研究中心有限公司 | Projection measurement system |
| CN112561867A (en) * | 2020-12-04 | 2021-03-26 | 北京现代汽车有限公司 | Method and device for detecting vehicle S region visual field |
| CN114913166A (en) * | 2022-05-30 | 2022-08-16 | 东风汽车集团股份有限公司 | Rapid detection method and system for front view S area |
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| CN205280377U (en) * | 2015-12-16 | 2016-06-01 | 中国第一汽车股份有限公司 | Commercial car place ahead field of vision measuring device |
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| CN104848785A (en) * | 2014-09-05 | 2015-08-19 | 北汽福田汽车股份有限公司 | Whole-automobile parameter test system |
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