CN107202992A - A kind of detection method - Google Patents
A kind of detection method Download PDFInfo
- Publication number
- CN107202992A CN107202992A CN201710542818.XA CN201710542818A CN107202992A CN 107202992 A CN107202992 A CN 107202992A CN 201710542818 A CN201710542818 A CN 201710542818A CN 107202992 A CN107202992 A CN 107202992A
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- China
- Prior art keywords
- measured
- distance
- test
- target
- range unit
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Classifications
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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
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a kind of detection method：Step 1: driving the test point position that range unit to be measured or measuring distance of target are set along setting test path by each by driving structure；Step 2: the range unit to be measured at least carries out ranging, output measurement distance or measurement intensity to measuring distance of target in each test point position；Step 3: host computer carries out analysis calculating to the corresponding actual range in each test point position and measurement distance or actual range and the top plate of measurement intensity that receive；Step 4: the computing module that host computer treats survey range unit according to analysis calculating is modified compensation.The invention provides a complete test system, there is great stability in structure, compared with the existing test car in market, professional higher, Consumer's Experience is more preferable.The cost of manufacture of whole test car is very cheap compared with the existing product in market, while there is irreplaceable advantage in reliability.
Description
Technical field
The present invention relates to detections of radar field, and in particular to a kind of detection method.
Background technology
Optical scanner range unit is that one kind uses collimated light beam, passes through the flight time（Time of Flight, referred to as
TOF）Etc. the equipment that method carries out non-contact scanning ranging.At present, common optical scanner range unit includes：Light launches mould
Block, optical lens, chip, motor, bearing and the conducting slip ring for receiving simultaneously process signal.Light emission module sends light beam, optics
Camera lens is located in the light path of light emission module, by the beam emissions of collimation to testee surface, runs into light beam after barrier
It is reflected on reception chip, receives chip by measuring the time being transmitted between receiving, phase difference, the known light velocity, you can
Testee is obtained to the distance of device.It is now widely used for robot environment's scanning, path planning, avoidance navigation, security protection
Detection etc..
At present, in the market carries out the detection means of range measurement and calibration for this kind of optical radar, is by motor, driving
Device is what control system was constituted, and control detection means moves to be directed to apart from test above.But the existing inspection in market
The survey most whole system of device is sufficiently complete, and control system is not intelligent enough, many in structure to come building structure, weight using metalwork
It is big and stability is not high.User is inconvenient for use and manufacturing cost is too high.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of detection means and detection method, solves existing
Some detection means control system integration degree are low and structure on it is unstable the problem of.
In order to realize foregoing invention purpose, the present invention is adopted the following technical scheme that：
A kind of detection means, including：Range unit to be measured, coordinate measuring distance of target that range unit to be measured measures, with it is to be measured
Driving structure that range unit or measuring distance of target are connected and it is connected respectively with the driving structure and range unit to be measured
Control system；
The range unit to be measured measures measurement distance or survey at the test point position at each with measuring distance of target in setting spacing
Measure light intensity, the actual range that the control system is received to each test point position and measurement distance or actual range and measurement light
It is strong to carry out analysis calculating to be modified compensation to range unit to be measured.
As one of the preferred embodiments of the present invention, the control system includes middle control circuit and is connected with middle control circuit
The host computer connect, the middle control circuit connection driving structure, the host computer connects range unit to be measured.
As one of the preferred embodiments of the present invention, it is also associated with control circuit in display in real time on the middle control circuit
The display screen of operating trouble.
As one of the preferred embodiments of the present invention, in addition to guide frame, the guide frame is is oriented to shaft assembly
Or guide rail guidance set；
The guide frame includes guide rail and guide parallel with setting test path or overlap：
The guide is the cannelure being engaged with the longitudinal ridge of guide rail, and the cannelure is arranged on to be connected with driving structure
Range unit to be measured or measuring distance of target on；
Or, the guide is the longitudinal ridge being engaged with the cannelure of guide rail, and the longitudinal ridge is arranged on and driving structure
On the range unit to be measured or measuring distance of target being connected；
Or, the guide is to be connected to the directive wheel on the outside of guide rail or on the inside of guide rail, and the directive wheel is arranged on and driven
On the range unit to be measured that structure is connected or on measuring distance of target.
As one of the preferred embodiments of the present invention, the directive wheel is including the fixing axle perpendicular with guide rail and can turn
The dynamic rotating wheel being set in fixing axle, the rotating wheel is connected on the outside of guide rail or inner side.
As one of the preferred embodiments of the present invention, in addition to respectively the preposition travel switch being connected with middle control circuit
With rearmounted travel switch, the starting point of the test path is provided with the front matched with the resilient contact of preposition travel switch
Plate；The terminal of the test path is provided with the rear baffle matched with the resilient contact of rearmounted travel switch.
As one of the preferred embodiments of the present invention, the driving structure include driver and motor, it is described in
Control circuit is also associated with encoder, and the encoder is connected with the driver.
As one of the preferred embodiments of the present invention, in addition to middle control circuit the photoelectricity door distance measuring structure being connected.
As one of the preferred embodiments of the present invention, in addition to respectively the electricity being connected with driver and middle control circuit
Source, the power supply connects range unit to be measured by voltage transformation module.
As one of the preferred embodiments of the present invention, in addition to for installing test device to be measured, control system and drive
The body frame structure for automotive of dynamic structure, the body frame structure for automotive includes top plate, bottom plate and connection and supports the framework of top plate and bottom plate.
As one of the preferred embodiments of the present invention, wheel shaft structure, the wheel are also associated with below the body frame structure for automotive
Axle construction includes rotating shaft and is sleeved on the wheel at rotating shaft two ends；Driving structure is connected with the rotating shaft.
As one of the preferred embodiments of the present invention, lifting testboard is additionally provided with the top plate, it is described to be measured
Range unit is arranged on the lifting testboard, and by lifting its height of testboard lift adjustment or by lifting testboard
Rotation adjusts its test angle.
As one of the preferred embodiments of the present invention, broad-adjustable fixture is additionally provided with the top plate, to put
Put the host computer of different size.
As one of the preferred embodiments of the present invention, the framework is welded by angle steel.
A kind of detection method, comprises the following steps：
Step 1: driving range unit to be measured or measuring distance of target to be set along setting test path by each by driving structure
Test point position；
Step 2: the range unit to be measured at least each test point position to measuring distance of target carry out ranging, output measurement away from
From or measurement intensity；
Step 3: host computer to each test point corresponding actual range in position and measurement distance or actual range that receive and
The top plate of measurement intensity carries out analysis calculating；
Step 4: the computing module that host computer treats survey range unit according to analysis calculating is modified compensation.
As one of the preferred embodiments of the present invention, beginning and end is set with test path in step one, with drive
When the detection means to be measured or measuring distance of target that dynamic structure is connected are run to beginning and end, middle control circuit receives beginning and end
Trigger signal；
When starting measurement, detection means to be measured or measuring distance of target briefly return to setting starting point, and send trigger signal to middle control circuit.
As one of the preferred embodiments of the present invention, the detection means to be measured or measuring distance of target being connected with driving structure
There is accelerating sections, at the uniform velocity section and braking section at least including one from during starting point to the end or last test point position
Operation phase.
As one of the preferred embodiments of the present invention, the record of the actual distance is set by control system to driving structure
Fixed parameter and run time is drawn；
Or, the actual distance is measured by photoelectricity door distance measuring structure and sends a signal to middle control circuit.
As one of the preferred embodiments of the present invention, in addition to step 5, by being used up in same test point position simultaneously
The ranging of electric switch distance measuring structure and control system proofread the error of driving structure according to driving structure reference record actual range.
Compared with immediate prior art, beneficial effects of the present invention are：
The present invention builds the structure of dolly using sheet metal component, and the dolly can not only complete the accurate movement of car body, and can be complete
Walking mode under a variety of test patterns, and the fault verification of itself can be carried out, while can be carried out to detection means steady
Determine power voltage supply.
The present invention can provide a complete test system, it is possible to be combined closely with range unit to be measured, in structure
Upper to have great stability, compared with the existing test car in market, professional higher, Consumer's Experience is more preferable.And for
The control accuracy of travel distance is in millimeter rank.The cost of manufacture of whole detection means is very low compared with the existing product in market
It is honest and clean, while there is irreplaceable advantage in reliability.
Brief description of the drawings
Fig. 1 is detection means overall structure figure of the present invention.
Fig. 2 is control circuit control attachment structure block diagram in detection means of the present invention.
Fig. 3 is mobile precedence diagram in the detection means course of work of the present invention.
1st, testboard is lifted；2nd, metal button swtich；3rd, fixture；4th, top plate；5th, framework；6th, middle plate；7th, display screen；
8th, bottom plate；9th, wheel shaft structure；10th, directive wheel；11st, motor；12nd, preposition travel switch；13rd, driver；14th, middle control electricity
Road；15th, host computer；16th, range unit to be measured；17th, rearmounted travel switch；18th, encoder；19th, power supply；20th, voltage conversion mould
Block.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
In order that those skilled in the art more fully understand application scheme, below in conjunction with the embodiment of the present application
Accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application part, rather than whole embodiments.Based on the embodiment in the application, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of the application protection
Enclose.
In addition, term " comprising " and " having " and their any deformation, it is intended that covering is non-exclusive to be included, example
Such as, process, method, system, product or the equipment for containing series of steps or unit are not necessarily limited to those clearly listed
Step or unit, but may include not list clearly or for intrinsic other of these processes, method, product or equipment
Step or unit.
Embodiment 1
A kind of detection means, as shown in figure 1, including：Coordinate measuring distance of target and survey to be measured that range unit 16 to be measured is measured
The driving structure being connected away from device 16 or measuring distance of target, and be connected respectively with the driving structure and range unit to be measured 16
The control system connect；The spacing of the range unit to be measured 16 and measuring distance of target is adjusted by driving structure.It is described to be measured
Range unit 16 is optical distance measurement apparatus, and the optical distance measurement apparatus is including but not limited to impulse method laser ranging system, phase
Method laser ranging system or triangulation optical distance measurement apparatus.The test scope covering ranging of the range unit to be measured 16
Arbitrfary point position of the target on the test path of setting.
The coupled range unit to be measured 16 of the driving structure driving or measuring distance of target sequentially pass through the survey of setting
Pilot position, the actual range that the control system is received to each test point position and measurement distance or actual range and measurement light
Strong distance carries out analysis and calculates to be modified compensation to range unit 16 to be measured.
By the setting of range unit 16 to be measured, measuring distance of target, driving structure and control system, ranging dress to be measured is realized
Put 16 each setting test point position measurement, and with each setting test point position actual distance contrasted,
Take full advantage of the characteristic of the efficient quick distance measurement of optical distance measurement apparatus 16 to be measured, from measurement result this overall data on treat
Survey range unit 16 and carry out performance evaluation and correction-compensation.Metering system is simple, and measurement efficiency is high, and accuracy is good, is easy to performance
Evaluate the modeling with correction-compensation.
The control system includes middle control circuit 14 and the host computer 15 being connected with middle control circuit 14, as shown in Fig. 2 institute
The driver 13 that middle control circuit 14 connects driving structure is stated, the middle control circuit 14 connects ranging to be measured by the host computer 15
Device 16.The determination of each test point position is drawn by the driving parameter of driver 13.The motor 11 is according to driving
The driving parameter of device 13 is run, the inspection that the middle control circuit 14 is set by the operating control to driver 13 to each
Measuring point position is accurately positioned.
In order to further ensure constancy of the measuring distance of target in the measurement data of same position, the measuring distance of target is plate
Shape structure, the platy structure face relative with test device to be measured is test surfaces, and the test surfaces and test path are perpendicular.
In order to further accurately control the operational factor of the driver 13 and motor, the middle control circuit 14 is also connected with
There is encoder 18, the encoder 18 is connected with the driver 13.The middle control circuit 14 is specifically remembered by encoder 18
The number of turns that motor 11 is rotated is recorded, and is accurately counted by the beginning and ending time of the number of turns, the distance that each circle is run and operation
Calculate the actual distance of range unit 16 to be measured and measuring distance of target.
For the ease of further detection and maintenance, it is also associated with controlling circuit 14 in display in real time on the middle control circuit 14
The display screen 7 of operating trouble.For example, when the battery electric quantity of detection means is too low, display screen 7 can point out Low voltage
warning.It is preferred that, shown on the display screen 7 every on the physical circuit figure of middle control circuit 14, the middle control circuit 14
One trouble point can all be shown in the correspondence position in corresponding circuit diagram, and send alarm, and tester is notified in time.
In concrete application, the display of display screen 7 and host computer 15 can also be united two into one.
In order to ensure the stability of test path of the detection means in detection process, the detection means also includes being oriented to
Structure, the guide frame can be oriented to shaft assembly, and the guiding shaft assembly includes the axis of guide parallel with test path
The guide sleeve being connected with the axis of guide, the guide sleeve is connected to the range unit to be measured 16 being connected with the driving structure
Or on measuring distance of target；Or the guide frame can also be guide rail guidance set, the guide rail guidance set includes and setting
Test path is parallel or the guide rail and the guide that is engaged with guide rail that overlap.
In order to save the space-consuming of detection means, it is preferred that the guide frame is guide rail guidance set, the guiding
Part is the cannelure being engaged with the longitudinal ridge of guide rail, and the cannelure is arranged on the ranging to be measured dress being connected with driving structure
Put on 16 or measuring distance of target；Or, the guide is the longitudinal ridge being engaged with the cannelure of guide rail, and the longitudinal ridge is set
On the range unit to be measured 16 or measuring distance of target being connected with driving structure.Or, guide to be connected on the outside of guide rail or
Directive wheel 10 on the inside of guide rail.
It is further in order to ensure the steady of the range unit to be measured 16 that is connected with drive device or measuring distance of target operation
Property, the guide is preferably to be connected to the directive wheel 10 on the outside of guide rail or on the inside of guide rail, and the directive wheel 10 is arranged on and driven
On the range unit to be measured 16 that dynamic structure is connected or on measuring distance of target.The directive wheel 10 includes the fixation perpendicular with guide rail
Axle and the rotating wheel being rotatably set in fixing axle, the rotating wheel are connected on the outside of guide rail or inner side.
The detection means also includes the power supply 19 being connected respectively with driver 13 and middle control circuit 14, the power supply 19
Range unit 16 to be measured is connected by voltage transformation module 20.Specific where applicable, the power supply 19 is 24V power supplys 19, the electricity
Piezoelectric voltage is converted to 12V power supplys 19 for 24V power supply 19 and is supplied to range unit 16 to be measured by pressure modular converter 20.Certainly,
The specific voltage of power supply 19 and corresponding conversion voltage are selected according to actual needs.
As shown in Fig. 2 wherein, GND（Earth signal）、COM（Connectivity port）、232T（The transmitting terminal of RS232 drivings）、232R
（The receiving terminal of RS232 drivings）, encoded signal（The pulse that encoder 18 is exported）Refer to the form of transmission signal respectively.In control system
On system, whole control system is very complete.The pulse that precision for carriage walking is fed back by encoder 18 is controlled in real time
System, encoder 18 is with motor 11 by middle control circuit 14 one closed loop servo system of formation, and preposition travel switch 12 is with after
Put travel switch 17 and provide Origin And Destination signal respectively.With the walking of dolly, encoder 18 can provide corresponding pulse, in
Control circuit 14 carries out the pulse of feedback to be converted into millimeter.The encoder 18 that the present invention is used is second feedback 500 of 500 lines, i.e., one
Individual pulse, line correspondence 2mm.Control accuracy to carriage walking can reach a millimeter rank.
Present invention also offers a kind of detection method, the whole measurement shape of the open detection process of range unit 16 to be measured
State, comprises the following steps：
Step 1: driving range unit 16 to be measured or measuring distance of target to be set along setting test path by each by driving structure
Fixed test point position；
Step 2: the whole measuring state of the open detection process of range unit to be measured 16, in each test point position and non-
Its distance with measuring distance of target of detection Point Measurement simultaneously exports measurement distance or measurement light intensity；
Step 3: location information of the host computer 15 according to each test point position, filters out the survey corresponding with each test point position
Span from or measurement light intensity, and each test point corresponding actual range in position and measurement distance or actual range to receiving
Analysis calculating is carried out with measurement light intensity；
Step 4: the computing module that host computer 15 treats survey range unit 16 according to analysis calculating is modified compensation.
Present invention also offers a kind of detection method, the range unit 16 to be measured is only surveyed in the test point position of setting
Amount, it comprises the following steps：
Step 1: driving range unit 16 to be measured or measuring distance of target to be set along setting test path by each by driving structure
Fixed test point position；
Step 2: location information of the host computer 15 according to each test point position, corresponding instruction range unit 16 to be measured is to ranging mesh
Mark is measured；The host computer 15 directly sets range unit 16 to be measured to measuring distance of target according to the setup parameter of driver 13
Measurement triggering and be spaced, measurement distance that range unit 16 to be measured is exported each time or measurement light intensity and each test point position
Actual distance correspond；
Step 3: the actual distance and measurement distance or actual range and measurement intensity of each test point position of 15 pairs of host computer enter
Row analysis is calculated；
Step 4: the computing module that host computer 15 treats survey range unit 16 according to analysis calculating is modified compensation.
Embodiment 2
As different from Example 1, in order to realize being automatically positioned for detection means beginning and end, the detection means also includes
The preposition travel switch 12 and rearmounted travel switch 17 being connected respectively with middle control circuit 14, the starting point of the test path are set
There is the front apron that the resilient contact with preposition travel switch 12 matches；The terminal of the test path is provided with and rearmounted stroke
The rear baffle that the resilient contact of switch 17 matches.The preposition travel switch 12, which is touched, is pre-set at the detection to be measured
Home signal can be sent after front apron at device movement route start to the middle control module of circuit 14；The rearmounted stroke is opened
Close 17 touch be pre-set at after the rear baffle of the detection means to be measured movement route destination county can send endpoint signal to
The middle control module of circuit 14.
From unlike the detection method of embodiment 1, starting during measurement, range unit 16 or measuring distance of target to be measured are first
Setting starting point is returned to, and trigger signal is sent to control system.No matter any position of the detection means on test path, all can
Run, started to walk with the automatic pointing for completing detection means, it is ensured that measured each time all towards the direction of starting point when starting measurement
It is from same point starting.The test path refers to covering the survey of the hardware of all detectable testing lengths of detection means
Ping, the test path of setting refers to needing wherein one section of setting according to specific detection in the range of test path
Or whole TCH test channels.
The automatic method for returning starting point when detection means is tested, both ensure that measurement had same starting point to detection means every time,
It turn avoid simultaneously because the test path length set every time is different, it is necessary to which artificial carry back starting point or need in host computer
Test point position is changed on 15, operation is more simple and efficient, and it is more accurate to test.
Time of measuring is saved in order to further, measurement efficiency, the detection means to be measured being connected with driving structure is improved
Or measuring distance of target has accelerating sections, at the uniform velocity at least including one from during starting point to the end or last test point position
The operation phase of section and braking section.
It is preferred that, the detection means to be measured or measuring distance of target being connected with driving structure are from starting point to the end or finally
Include two operation phase with accelerating sections, at the uniform velocity section and braking section during one test point position.
Embodiment 3
From unlike embodiment 1-2, detection means also include with it is middle control circuit 14 or host computer 15 be connected photoelectricity door
Distance measuring structure.The photoelectricity door distance measuring structure is parallel with the test path of range unit 16 to be measured.By being filled with ranging to be measured
Put and run formed photoelectricity gate signal on photoelectricity door distance measuring structure on the body frame structure for automotive or measuring distance of target of 16 movement, with
And each test interval level of photoelectricity gate signal inverts the moving law of 1 time, so that middle control circuit 14 is able to record that and treated
The actual distance surveyed between range unit 16 and measuring distance of target, while middle control circuit 14 can be by the inspection of photoelectricity door distance measuring structure
The black and white strip surveyed on guide rail, the measurement data of each test interval record once product to be measured by actual travel distance and is treated
Survey product test distance and pass to host computer 15, product to be measured is demarcated by host computer 15 and calibrated numerical value is led to
The software for crossing the end of host computer 15 is write in product to be measured, realizes the calibration to product to be measured.
From unlike embodiment 1-2 detection method, comprising the following steps：
Step 1: driving connected range unit to be measured 16 or measuring distance of target to be passed through along setting test path by driving structure
Cross the test point position of each setting；The actual distance of test point position is measured by photoelectricity door distance measuring structure and sends a signal to middle control
Circuit 14 or host computer 15.
Step 2: the range unit to be measured 16 is under the instruction of host computer 15, each detection Point Measurement its with
The distance of measuring distance of target simultaneously exports measurement distance or measurement light intensity；
Step 3: the corresponding actual range in each test point position of 15 pairs of host computer and measurement distance or actual range and measurement are strong
Degree carries out analysis calculating；
Step 4: the computing module that host computer 15 treats survey range unit 16 according to analysis calculating is modified compensation.It is described true
Actual distance from by photoelectricity door distance measuring structure measure and send a signal to it is middle control circuit 14.
In order to further improve the accuracy rate of detection means, the detection method also includes step 5, by same
Test point position drives driving structure record actual range, check and correction driving using photoelectricity door distance measuring structure ranging and control system simultaneously
The error of structure.
Embodiment 4
From unlike embodiment 1-3, the detection means also include be used for test device to be measured, control system and driving are installed
The body frame structure for automotive of structure, the body frame structure for automotive includes top plate 4, bottom plate 8 and the framework for connecting and supporting top plate 4 and bottom plate 8
5.When it is implemented, can also install at least one middle plate 6 additional between the top plate 4 and bottom plate 8 as needed.Framework 5, top
The setting of laminate 4, bottom plate 8 and middle plate 6 so that the component distribution of detection means is more reasonable, further saves detection dress
The space hold put.
Wheel shaft structure 9 is also associated with below the body frame structure for automotive, the wheel shaft structure 9 includes rotating shaft and is sleeved on rotating shaft two
The wheel at end；Driving structure is connected with the rotating shaft.The setting of the wheel shaft structure 9 make it that the operation of detection means is more flat
Surely, the speed of service faster, improves the repeatability of test and the efficiency of test.
The encoder 18, driver 13 and middle control circuit 14 are arranged on bottom plate 8, are additionally provided with the top plate 4
Two metal button swtichs 2, the power supply of one of control detection means, another is used to control range unit 16 to be measured
Power supply, two metal button swtichs 2 are all connected with power supply 19.The display screen 7 is arranged on middle plate 6.
The power supply 19 is 24V power supplys, is also connected between range unit 16 to be measured and coupled metal button swtich 2
The voltage transformation module 20 connect, is converted to 12V for 24v power supply 19 by voltage and is supplied to range unit 16 to be measured, specifically
The voltage of power supply 19 and corresponding conversion voltage are selected according to actual needs.
The long * of the overall dimensions a height of 455mm*350mm*608mm of wide * of the vehicle frame, framework 5 is using 12 L in structure
Type angle steel is welded as main support, and top plate 4 and middle plate 6 are made by PMMA for main load-bearing material, PMMA
Transparency is excellent, there is prominent resistance to ag(e)ing；Its proportion is less than the half of simple glass, and shatter-resistant ability is but higher by several times；
It has good insulating properties and mechanical strength；There is stronger decay resistance to acid, alkali, salt；And easy processing again；It can be glued
Connect, saw, digging, boring, carving, grinding, silk-screen printing, sandblasting etc. by hand and machining, it is flexible after heating to be compression molded into various acrylics
Product, PMMA is the preferred material of the application, but other types of material also may be selected such as in specific implementation, glass, wood
It is first-class.The bottom plate 8 is made up of load performance and the preferable aluminium sheet of thermal diffusivity, to ensure that the mechanism being fixed on bottom plate 8 is run
Stable, radiating is uniform.
In order to which bottom plate 8, middle plate 6 and top plate 4 obtain good stability, the middle plate 6 is included by 4 angle steel groups
Into frame, the frame is preferably rectangle or square, and four angles of the frame are respectively fixedly connected with the 4 of framework 5
On the angle steel that root is vertically arranged, the top plate 4 and bottom plate 8 be respectively fixedly connected with framework 5 up and down two respectively by 4 angles
In the consistent top frame and underframe of size of steel composition, the underframe, top frame and 4 angle steel being vertically arranged finally constitute one
Two layers or the structure of multistory frame 5 of individual stabilization.
Lifting testboard 1 is additionally provided with the top plate 4, the lifting testboard 1 includes fix bar and can be along admittedly
The testing stand of fixed pole above-below direction activity, the testing stand is rotated centered on fix bar in the horizontal direction, the lifting
The positioner for testing stand to be positioned is additionally provided with testboard 1.The range unit to be measured 16 is arranged on the survey
On test stand face, and by lifting the lift adjustment of testboard 1 its height, while also its test angles can be rotated by lifting testboard 1
Degree, is used with the optic test for meeting specialty.
Preferably, range unit 16 to be measured is placed on testing stand, and is placed with the testing stand for positioning
And the keeper of fixed range unit to be measured, to ensure that the different test positions of range unit to be measured 16 are consistent.
Ideally, when detection means is located at starting point, range unit 16 to be measured, which is placed on testing stand, measures distance value
It is equal to the actual distance that dolly is measured by the pulse signal of encoder 18 for the measurement distance at 0 test point position.
Real-time Transmission can not be supported due to being wirelessly transferred when big data quantity is tested, at this moment wire transmission mode very must
Will, and detection means is run with transmission line and can easily cause transmission line and come off during wire transmission, the situation of test job interruption.Such as
Fruit is simply simply shelved on host computer 15 on top plate 4, and host computer 15 is when detection means is run because hard with top plate 4
Property collision can be easier to drop, therefore, broad-adjustable fixture 3 is additionally provided with the top plate 4, to place different size
Host computer 15.It is preferred that, the fixture 3 can be around the axle rotation perpendicular to horizontal plane, to be applicable operator in different operating angles
Host computer 15, it is preferred that the clamping bottom surface of the fixture 3 and top plate 4 are at an acute angle, to ensure host computer 15 in fixture 3 and top
Deviate from fixture 3 will not running or shake because of detection means under the collective effect of laminate 4.Nothing can be used when small data quantity is tested
Line is transmitted, remote control test, and now fixture 3 just can be without.
On body frame structure for automotive, using aluminium sheet as bottom plate, L-type angle steel considerably increases whole as the framework 5 of main structure
The stability of body structure, reduces the influence for top in motion process.And it can use and enter walking on the inside of L-type angle steel
Line, can greatly increase the life-span used of detection means, in middle circuit 14 of controlling for PCB structure, and the PCB circuits
Have outside hardened structure plus acrylic protection board, detection means is adapted to the harsh environment such as factory.
During specific test, starting point is provided with the measuring distance of target of one piece of test, and the measuring distance of target preferably is blank,
The setting of the blank is to ensure that range unit 16 to be measured is put into detection means its rear any test point along along test path
The light beam that is sent of position can be got on blank, measure between the starting point where range unit 16 to be measured and measuring distance of target away from
From.
During measurement, two metal button swtichs 2 being located on top plate 4 are opened respectively first, one of control is whole
The electric power system of dolly, another is used for the electric power system for controlling product to be measured, presses and can be appreciated that two button switches are lighted,
And can hear that " ticking " sound rises, while the display screen 7 being placed on above middle plate 6 can be lighted, represent detection means normal operation.
The control program of the host computer 15 of opening detecting device, carries out the configuration of range unit 16 to be measured, and inserts mesh
The parameter such as measuring distance, measuring accuracy, test interval and testing time, after the completion of start test, at the same time, host computer 15
By data transfers such as measuring distance, measuring accuracy, test speeds to middle control circuit 14.The purpose measuring distance is the inspection of setting
Measuring point position.
Specific test process is as shown in figure 3, exemplified by testing 30 meters of guide rail total length, the starting point of the setting at the guide rail two ends
The correspondence position of terminal is provided with front apron and rear baffle.Press power supply 19 first to switch, detection means operation return to origin
A processes, that is, the body frame structure for automotive of range unit to be measured is installed first with low-speed running to starting point, in this process, control is
Unite and send uniform pulse to driver 13, the control motor 11 of driver 13 at the uniform velocity drive body frame structure for automotive walking, until to
Up to starting point, preposition travel switch 12 encounters front apron, so that the signal to middle 14 1 arrival starting points of control circuit.Receiving this
During signal, middle control circuit 14 judges that body frame structure for automotive has returned to starting point, can now hear that detection means continuously sends two sound " ticking "
Sound, A process operations are finished；Then detection means carries out the first operation phase B process, in process B, and middle control circuit 14 can be to
Driver 13 sends the signal of acceleration, and the motor 11 of driver 13 constantly accelerates, and the wheel that motor belt motor moves body frame structure for automotive adds
Speed traveling, while the axle in axle system realizes the linkage of whole body frame structure for automotive.Program is accelerated in body frame structure for automotive to preset
Speed after, start at the uniform velocity to walk, control system starts control driver 13 when close to terminal and then controlled motor is to subtract
Speed（Deceleration point passes through program to the calculating of measuring distance to ensure the stationarity of carriage walking）, after deceleration, detection is filled
The rearmounted travel switch 17 put can encounter the rear baffle pre-set in destination county, provide a trigger signal, middle control circuit 14
Judge that body frame structure for automotive is reached home, complete the first operation phase B.During walking, encoder 18 can be constantly to middle control electricity
Road 14, which is sent, can represent the pulse of distance, and middle control circuit 14 is changed into millimeter, according to the survey for being initially at the setting of host computer 15
Examination interval（Such as 1 millimeter or 5 millimeters etc.）, control system can send out after the mobile control that is each spaced is completed to host computer 15
Send a signal.Host computer 15 can trigger range unit 16 to be measured when receiving this signal and be tested, and by test data
Storage, is sent to computer with measurement distance or measurement light intensity by the actual range of each test point position, passes through encoder afterwards
The accuracy of measurement of the 18 actual range amendment measured range units 16 to be measured, and correction chart is preserved into product to be measured.Arrive
Up to after terminal, it can also hear that detection means sends two sound and " ticked " sound, while body frame structure for automotive starts the second operation phase C's
Operation, opens reverse walking mode, and the same process for performing acceleration-at the uniform velocity-deceleration returns to starting point.Under this test pattern,
Improved a lot on testing efficiency.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
The present invention is described in detail with reference to above-described embodiment for pipe, and those of ordinary skill in the art still can be to this hair
Bright embodiment is modified or equivalent substitution, these without departing from spirit and scope of the invention any modification or
Equivalent substitution, is applying within pending claims of the invention.
Claims (5)
1. a kind of detection method, it is characterised in that comprise the following steps：
Step 1: driving range unit to be measured or measuring distance of target to be set along setting test path by each by driving structure
Test point position；
Step 2: the range unit to be measured at least each test point position to measuring distance of target carry out ranging, output measurement away from
From or measurement intensity；
Step 3: host computer to each test point corresponding actual range in position and measurement distance or actual range that receive and
The top plate of measurement intensity carries out analysis calculating；
Step 4: the computing module that host computer treats survey range unit according to analysis calculating is modified compensation.
2. detection method according to claim 1, it is characterised in that be set with starting point and end in step one on test path
Point, when the detection means to be measured or measuring distance of target being connected with driving structure are run to beginning and end, middle control circuit has been received
The trigger signal of point and terminal；
When starting measurement, detection means to be measured or measuring distance of target briefly return to setting starting point, and send trigger signal to middle control circuit.
3. detection method according to claim 2, it is characterised in that the detection means to be measured that is connected with driving structure or
Measuring distance of target is at least including one with accelerating sections, at the uniform velocity section from during starting point to the end or last test point position
With the operation phase of braking section.
4. detection method according to claim 1, it is characterised in that the record of the actual distance is by control system to driving
The parameter and run time of dynamic configuration settings are drawn；
Or, the actual distance is measured by photoelectricity door distance measuring structure and sends a signal to middle control circuit.
5. detection method according to claim 4, it is characterised in that also including step 5, by same test point position
Simultaneously with light electric switch distance measuring structure ranging and control system according to driving structure reference record actual range, check and correction driving structure
Error.
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Application publication date: 20170926 |