CN209505708U - A kind of chassis trolley and 3-D scanning imaging system - Google Patents
A kind of chassis trolley and 3-D scanning imaging system Download PDFInfo
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- CN209505708U CN209505708U CN201920272924.5U CN201920272924U CN209505708U CN 209505708 U CN209505708 U CN 209505708U CN 201920272924 U CN201920272924 U CN 201920272924U CN 209505708 U CN209505708 U CN 209505708U
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Abstract
The utility model provides a kind of chassis trolley and 3-D scanning imaging system, wherein the chassis trolley, comprising: trolley body and the there-dimensional laser scanning device being mounted in trolley body；There-dimensional laser scanning device, comprising: photographing module, 3 D laser scanning module, acquisition module, image processing module and communication interface modules, control module and power supply；Photographing module, 3 D laser scanning module, acquisition module, image processing module, communication interface modules and control module are sequentially connected；Control module also connects to power supply；The height of trolley body is less than the distance between vehicle chassis and ground.Pass through chassis trolley provided by the embodiment of the utility model and 3-D scanning imaging system, testing staff can detect according to chassis of the image that chassis trolley obtains to vehicle, to can also detect to the chassis of vehicle in the detection occasion that can not carry out vehicle lifting, safe operation is simple and convenient.
Description
Technical field
The utility model relates to technical field of vehicle detection, in particular to a kind of chassis trolley and 3-D scanning at
As system.
Background technique
Currently, chassis detection is a particularly important ring during diagnosing to vehicle applying working condition and failure
Section.It is detected by chassis, can determine the problem of vehicle chassis is gone out, any one problem on chassis can all seriously affect vehicle
Service life and use, so that the valuation of vehicle is had a greatly reduced quality.
Chassis detection be observed with testing staff based on, after lifting to vehicle, testing staff observes bottom under chassis
Disk provides the result of the detection on chassis.The result of chassis detection relies primarily on testing staff's experience and obtains.
In the detection occasion that can not carry out vehicle lifting, testing staff can not just be detected the chassis of vehicle.
Utility model content
To solve the above problems, the utility model embodiment be designed to provide a kind of chassis trolley and 3-D scanning at
As system.
In a first aspect, the utility model embodiment provides a kind of chassis trolley, comprising: trolley body and be mounted on described
There-dimensional laser scanning device in trolley body；
The there-dimensional laser scanning device, comprising: photographing module, 3 D laser scanning module, acquisition module, image procossing
Module and communication interface modules, control module and power supply；
It is the photographing module, the 3 D laser scanning module, the acquisition module, described image processing module, described
Communication interface modules and the control module are sequentially connected；The control module is also connect with the power supply；
The height of the trolley body is less than the distance between vehicle chassis and ground.
Second aspect, the utility model embodiment additionally provide a kind of 3-D scanning imaging system, which is characterized in that packet
It includes: host computer, mobile terminal and above-mentioned chassis trolley；
The chassis trolley is equipped with there-dimensional laser scanning device；
The there-dimensional laser scanning device is interacted with the host computer and the mobile terminal respectively.
In the scheme that the above-mentioned first aspect of the utility model embodiment is provided to second aspect, by there-dimensional laser scanning device
It is arranged on the chassis trolley at a distance from highly less than vehicle chassis between ground, in the detecting field that can not carry out vehicle lifting
In conjunction, the chassis trolley for being provided with there-dimensional laser scanning device is allowed to drive to below vehicle chassis the figure for acquiring vehicle chassis
Picture is observed instead of chassis of the testing staff to vehicle, and testing staff can be according to the image that chassis trolley obtains to vehicle
Chassis detected, to can also be detected to the chassis of vehicle in the detection occasion that can not carry out vehicle lifting,
Safe operation is simple and convenient.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is shown in a kind of chassis trolley provided by the utility model embodiment, the knot of there-dimensional laser scanning device
Structure schematic diagram；
Fig. 2 shows in a kind of chassis trolley provided by the utility model embodiment, the structural schematic diagram of control module.
Icon: 100- photographing module；102- power supply；104- microcontroller；106- laser ranging system；The rotation of 108- machinery
Zero detector；110- motor driver；112- motor；114- encoder；116- filter circuit；118- analog-to-digital conversion electricity
Road；120- operation amplifier circuit；122- digital signal output circuit；124- image synthesizes arithmetic element；126- point cloud data
Processing unit；128- calculated result cache unit；130-RS232 communication interface；132-RS485 communication interface；134-USB communication
Interface；136-WiFi communication interface；138-I2C communication interface；200-WiFi module；202- processing unit；203- satellite communication
Extend card slot；204- general I/O port；206- satellite navigation system baseband processing chip；208- analog-to-digital conversion subelement；
210- satellite navigation system radio frequency chip；212- satellite navigation system antenna；214- secondary cell；216- internal memory card interface.
Specific embodiment
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the utility model and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
Three-dimensional laser scanning technique is a new and high technology for starting middle nineteen nineties in last century to occur, and is after GPS sky
Between another item surveying and mapping technology new breakthrough after positioning system.It passes through the method for high-rate laser scanning survey, large area high-resolution
Rate quick obtaining measurand surface three-dimensional coordinate data.Point position in space information can quickly, be largely acquired, is fast run-up
The 3-dimensional image model of vertical object provides a kind of completely new technological means.It is untouchable with rapidity, real-time, dynamic, master
Dynamic property, the characteristics such as high density, high-precision, digitlization, automation.
Three-dimensional laser scanning technique is the new technology occurred in recent years, it is using laser distance measuring principle, by recording quilt
Survey body surfaceThe information such as three-dimensional coordinate, reflectivity and the texture of the point off density of amount form point cloud information, can quickly rebuild out
The various graph data such as the threedimensional model and line of measured target, face, body.Since three-dimensional laser scanning technique can be denselyAmount
The data point for obtaining target object, relative to traditional spot measurement, three-dimensional laser scanning technique also referred to as from spot measurement into
Change the revolutionary technological break-through to planar survey.
During diagnosing to vehicle applying working condition and failure, chassis detection is a particularly important link, is led to
Cross chassis detection, it can be determined that whether vehicle has oil leak, leakage situation；Whether chassis structure, which has slight crack or did repair welding, is answered；
Whether exhaust system is unimpeded, if generates corrosion or rot；Whether suspension working condition is normal；Whether engine compartment components
There are aging and loosening.Any one problem on chassis can all seriously affect service life and the use of vehicle, play the valuation of vehicle greatly
Discount.
Currently, chassis detection be observed with testing staff based on, after lifting to vehicle, testing staff is in chassis Xia Guan
Chassis is examined, the result of the detection on chassis is provided.The result of chassis detection relies primarily on testing staff's experience and obtains.Can not carry out
In the detection occasion of vehicle lifting, testing staff can not just be detected the chassis of vehicle.
Based on this, the present embodiment proposes a kind of chassis trolley and 3-D scanning imaging system, allows being provided with three-dimensional laser and sweep
The chassis trolley of imaging apparatus drives to below vehicle chassis the image for acquiring vehicle chassis, instead of testing staff to the bottom of vehicle
Disk is observed, and testing staff can detect according to chassis of the image that chassis trolley obtains to vehicle, thus can not
Can also detect the chassis of vehicle in the detection occasion of vehicle lifting, safe operation is simple and convenient.
Embodiment
The present embodiment proposes a kind of chassis trolley, comprising: trolley body and the three-dimensional being mounted in the trolley body swash
Light scanning apparatus.
The trolley body can use the structure of existing any remote-control car, no longer repeat one by one here.
It, can be in trolley body along the side of the side of chassis trolley direction of travel in order to guarantee the durability of chassis trolley
Collision prevention girders are set on face.
The structural schematic diagram of there-dimensional laser scanning device shown in Figure 1, the there-dimensional laser scanning device, comprising:
Photographing module 100,3 D laser scanning module, acquisition module, image processing module and communication interface modules, control module and electricity
Source 102.
The photographing module 100, the 3 D laser scanning module, the acquisition module, described image processing module, institute
It states communication interface modules and the control module is sequentially connected；The control module is also connect with the power supply 102.
The height of the trolley body is less than the distance between vehicle chassis and ground, allows chassis trolley in vehicle
Chassis downward driving.
In one embodiment, photographing module 100 can use high-resolution lens.
The 3 D laser scanning module, comprising: microcontroller 104, laser ranging system 106, mechanical rotation zero-bit inspection
Survey device 108, motor driver 110, motor 112 and encoder 114；
The microcontroller 104 is examined with the photographing module, laser ranging system 106, the mechanical rotation zero-bit respectively
It surveys device 108 and the motor driver 110 connects；The motor driver 110 also respectively with the motor 112
It is connected with the encoder 114, the encoder 114 is also connect with the acquisition module.
Laser ranging system 106, can be using laser range finder any in the prior art；Machinery rotation zero testing dress
108 are set, it can be using mechanical rotation zero testing device any in the prior art；Here it is not repeating one by one.
The acquisition module, comprising: sequentially connected filter circuit 116, analog to digital conversion circuit 118, operational amplifier electricity
Road 120 and digital signal output circuit 122.
The filter circuit 116 is connect with the encoder 114；The digital signal output circuit 122 and described image
Processing module connection.
The acquisition module, for the analog signal of the chassis image of acquisition to be converted to digital signal.
Described image processing module, comprising: sequentially connected image synthesizes arithmetic element 124, Point Cloud Processing unit
126 and calculated result cache unit 128；
Described image synthesis arithmetic element is also connect with the digital signal output circuit, the calculated result cache unit
Also it is connect with the communication interface modules.
In one embodiment, described image synthesis arithmetic element 124 can use image processor；The calculating knot
Fruit cache unit 128 can use nonvolatile memory.Optionally, the calculated result cache unit 128 can be using sudden strain of a muscle
It deposits.
In one embodiment, above-mentioned Point Cloud Processing unit 126 can use points cloud processing device.
Any points cloud processing core that points cloud processing can be carried out to image sequence in the prior art can be used in points cloud processing device
Piece.
Preferably, above-mentioned points cloud processing device can be but not limited to: Intel Xeon E5-2680v3 (Haswell) processing
Device.
The communication interface modules, comprising: RS232 communication interface 130, RS485 communication interface 132, USB communication interface
134, Wireless Fidelity WiFi communication interface 136 and I2C communication interface 138.
The RS232 communication interface, the RS485 communication interface, the USB communication interface, the WiFi communication interface
It is connect respectively with the calculated result cache unit with the I2C communication interface；The USB communication interface and the control module
Connection.
The RS232 communication interface, the RS485 communication interface and the I2C communication interface, can be used as extension
Interface connects with the peripheral hardware with I2C communication interface described in the RS232 communication interface, the RS485 communication interface, and/or person
It connects, so that there-dimensional laser scanning device be allow to carry out wired interaction with the peripheral hardware connected.
The WiFi communication interface, for being wirelessly connected with peripheral apparatus such as mobile terminals with WiFi communication interface,
To allow there-dimensional laser scanning device to carry out wireless data transmission interaction with the peripheral hardware connected.
It can be seen that the photographing module in there-dimensional laser scanning device by above content, for acquiring vehicle chassis
Image, described image processing module is by laser distance measuring principle by the sky of the surface point of the collected automobile chassis of photographing module
Between coordinate handled, obtain the point cloud information on vehicle chassis surface.
The structural schematic diagram of control module shown in Figure 2, the control module, comprising: WiFi module 200 and processing
Unit 202.
The processing unit 202 is connect with the WiFi module 200 and the power supply 102 respectively, and logical by the USB
Letter interface is connect with the calculated result cache unit.
The processing unit 202 obtains a complete chassis three-dimensional imaging for doing splicing to the image adopted
Figure.The operating condition of vehicle chassis can be judged by the figure, provide digitlization foundation for maintenance, maintenance and price evaluation.
In one embodiment, the processing unit 202 can use raspberry3b+ single-chip microcontroller.Certainly, described
Processing unit 202, can also using it is existing it is any can to the single-chip microcontroller that the there-dimensional laser scanning device is controlled, in
Central processor and microprocessor, no longer repeat one by one here.
The there-dimensional laser scanning device can be distinguished by the WiFi module 200 connecting with processing unit 202
The mobile terminal used with host computer or testing staff interacts.
The control module, further includes: the general I/O port 204 being connect with the processing unit.The processing is single
Member can be connect by the general I/O port 204 of connection with the laser radar sensor of chassis trolley, so as to institute
State the data that laser radar sensor is controlled and obtains the laser radar sensor acquisition.
The transmission range of WiFi than relatively limited, in order in host computer and/or testing staff not in the detection place of vehicle
When, the mobile terminal that still chassis trolley can be made to use with position machine and/or testing staff interacts.The present embodiment proposes
Chassis trolley in, the control module, further includes: the spare communication module being connect with the processing unit 202.
The spare communication module, comprising: sequentially connected satellite navigation system baseband processing chip 206, analog-to-digital conversion
Subelement 208, satellite navigation system radio frequency chip 210 and satellite navigation system antenna 212.
The satellite navigation system baseband processing chip 206 is also connect with the processing unit 202.
The processing unit 202 is also connected with satellite communication extension card slot 203, for being inserted into satellite communication expansion card.
Correspondingly, be plugged with satellite communication expansion card in the host computer and the mobile terminal, so as to three
The spare communication module of dimension laser scanning device setting interacts, so that there-dimensional laser scanning device passes through the spare logical of setting
Believe that module will be in the image of the vehicle chassis of acquisition is sent to host computer and testing staff uses mobile terminal.
Satellite navigation system baseband processing chip 206 and satellite navigation system radio frequency chip 210 can use: big-dipper satellite
Navigation system (BeiDou Navigation Satellite System, BDS), GPS or GLONASS satellite navigation system
The baseband processing chip and radio frequency chip of (GLOBAL NAVIGATION SATELLITE SYSTEM, GLONASS).So defending
Star communication extension card, can be but not limited to: Beidou card, GPS card or GLONASS card.
In one embodiment, in order to obtain the image of the vehicle chassis of transmission by foreign agencies, and in order to protect
Safety when card transmission data, satellite navigation system baseband processing chip preferably use Beidou satellite navigation system Base-Band Processing
Chip；Satellite navigation system radio frequency chip preferably uses Beidou satellite navigation system radio frequency chip.
Since a BDS generation uses active location method, in bis- generation of BDS, uses passive location method, in positioning method and penetrates
It is all different for taking place frequently and sending a BDS generation and bis- generation of BDS in frequency, so in order to guarantee the stability for transmitting data by BDS,
Beidou satellite navigation system radio frequency chip should include: that Beidou generation satellite navigation system radio frequency chip, Beidou II satellite are led
Boat system radio frequency chip and power divider, Beidou generation satellite navigation system radio frequency chip and Beidou II satellite navigation system
Radio frequency chip is connect with analog-to-digital conversion subelement 208 respectively, and by power divider, is connected with satellite navigation system antenna 212
It connects.
Wherein, Beidou generation satellite navigation system radio frequency chip, for passing through Beidou generation satellite communication network for vehicle
The image on chassis is sent to host computer and mobile terminal；Beidou II satellite navigation system radio frequency chip, for passing through Beidou two
It sends the image of vehicle chassis on host computer and mobile terminal for satellite communication network.
By the way that Beidou generation satellite navigation system radio frequency core is respectively set in Beidou satellite navigation system radio frequency chip 210
Piece and Beidou II satellite navigation system radio frequency chip, so that there-dimensional laser scanning device transmits the figure of vehicle chassis by BDS
When picture, it can also both be penetrated by Beidou II satellite navigation system by Beidou generation satellite navigation system radio frequency chip
Frequency chip ensure that the stability of data transmission.
By the above description as can be seen that there-dimensional laser scanning device can be by the spare communication module of setting by vehicle
In the mobile terminal that the image on chassis is sent to host computer and testing staff uses, since satellite communication network can cover ground
Each corner of ball, it is possible to anywhere establish the host computer of the image for receiving vehicle chassis and testing staff
The image on chassis can also can be sent by spare communication module in any position of the earth, there-dimensional laser scanning device
In the mobile terminal used to host computer and testing staff, not necessarily worry there-dimensional laser scanning device and host computer and/or
The hypertelorism of testing staff and cause data transmission lose.
The image of the vehicle chassis stored in there-dimensional laser scanning device, above-mentioned three-dimensional are got in order to facilitate testing staff
Laser scanning device further include: the internal memory card interface 216 being connect with processing unit 202 by system bus, the internal memory card interface
216 for being inserted into safety digital storage card (Secure Digital Memory Card, SD card).
It, can be by SD card by the collected vehicle chassis of there-dimensional laser scanning device after internal memory card interface is inserted into SD card
Image stored.
In order in the power failure, still guarantee that above-mentioned there-dimensional laser scanning device can work normally, this
The chassis trolley that embodiment proposes, further includes: the secondary cell 214 being connect with the processing unit 202.
It can be seen that by above description by the way that secondary cell is arranged in there-dimensional laser scanning device, go out in power supply
There-dimensional laser scanning device can be still powered by secondary cell when existing failure, make there-dimensional laser scanning device still can be with
It works normally.
In order to can to testing staff show acoustic imaging system working condition, the present embodiment propose acoustic imaging system,
Further include: the indicator light (not shown) being connect with the processing unit.
In one embodiment, the indicator light uses light emitting diode.Certainly, the indicator light can use existing
Any light source, under control of the processing unit to testing staff show acoustic imaging system working condition, here no longer one by one
It repeats.
In one embodiment, in order to be traveled freely chassis trolley under vehicle chassis.The present embodiment proposes
Chassis trolley the laser radar sensor that connect with the processing unit, the processing in reception there-dimensional laser scanning device are housed
The control of unit makees chassis trolley in the relative position of vehicle chassis and builds figure in real time, and position signal is fed back to processing list
Member realizes the automatic cruising of chassis trolley.
In order to interact chassis trolley and host computer and mobile terminal, the present embodiment also propose a kind of 3-D scanning at
As system, comprising: host computer, mobile terminal and above-mentioned chassis trolley；
The chassis trolley is equipped with there-dimensional laser scanning device.
The there-dimensional laser scanning device is interacted with the host computer and the mobile terminal respectively.
In conclusion chassis trolley and 3-D scanning imaging system that the present embodiment proposes, by there-dimensional laser scanning device
It is arranged on the chassis trolley at a distance from highly less than vehicle chassis between ground, in the detecting field that can not carry out vehicle lifting
In conjunction, the chassis trolley for being provided with there-dimensional laser scanning device is allowed to drive to below vehicle chassis the figure for acquiring vehicle chassis
Picture is observed instead of chassis of the testing staff to vehicle, and testing staff can be according to the image that chassis trolley obtains to vehicle
Chassis detected, to can also be detected to the chassis of vehicle in the detection occasion that can not carry out vehicle lifting,
Safe operation is simple and convenient.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described with power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of chassis trolley characterized by comprising trolley body and the three-dimensional laser being mounted in the trolley body are swept
Imaging apparatus；
The there-dimensional laser scanning device, comprising: photographing module, 3 D laser scanning module, acquisition module, image processing module
With communication interface modules, control module and power supply；
The photographing module, the 3 D laser scanning module, the acquisition module, described image processing module, the communication
Interface module and the control module are sequentially connected；The control module is also connect with the power supply；
The height of the trolley body is less than the distance between vehicle chassis and ground.
2. chassis trolley according to claim 1, which is characterized in that the 3 D laser scanning module, comprising: microcontroller
Device, laser ranging system, mechanical rotation zero detector, motor driver, motor and encoder；
The microcontroller respectively with the photographing module, laser ranging system, the mechanical rotation zero detector and
The motor driver connection；The motor driver is also connect with the motor and the encoder respectively, the volume
Code device is also connect with the acquisition module.
3. chassis trolley according to claim 2, which is characterized in that the acquisition module, comprising: sequentially connected filtering
Circuit, analog to digital conversion circuit, operation amplifier circuit and digital signal output circuit；
The filter circuit is connect with the encoder；The digital signal output circuit is connect with described image processing module.
4. chassis trolley according to claim 3, which is characterized in that described image processing module, comprising: sequentially connected
Image synthesizes arithmetic element, Point Cloud Processing unit and calculated result cache unit；
Described image synthesis arithmetic element also connect with the digital signal output circuit, the calculated result cache unit also with
The communication interface modules connection.
5. chassis trolley according to claim 4, which is characterized in that the communication interface modules, comprising: RS232 communication
Interface, RS485 communication interface, USB communication interface, Wireless Fidelity WiFi communication interface and I2C communication interface；
The RS232 communication interface, the RS485 communication interface, the USB communication interface, the WiFi communication interface and institute
I2C communication interface is stated to connect with the calculated result cache unit respectively；The USB communication interface and the control module connect
It connects.
6. chassis trolley according to claim 5, which is characterized in that the control module, comprising: WiFi module and processing
Unit；
The processing unit is connect with the WiFi module and the power supply respectively, and by the USB communication interface with it is described
The connection of calculated result cache unit.
7. chassis trolley according to claim 6, which is characterized in that the control module, further includes: single with the processing
The general I/O port of member connection.
8. chassis trolley according to claim 6, which is characterized in that the control module, further includes: single with the processing
The spare communication module of member connection；
The spare communication module, comprising: sequentially connected satellite navigation system baseband processing chip, analog-to-digital conversion subelement,
Satellite navigation system radio frequency chip and satellite navigation system antenna；
The satellite navigation system baseband processing chip is also connect with the processing unit；
The processing unit is also connected with satellite communication extension card slot.
9. chassis trolley according to claim 6, which is characterized in that the control module, further includes: single with the processing
The internal memory card interface of member connection.
10. a kind of 3-D scanning imaging system characterized by comprising host computer, mobile terminal and the claims 1-
9 described in any item chassis trolleies；
The chassis trolley is equipped with there-dimensional laser scanning device；
The there-dimensional laser scanning device is interacted with the host computer and the mobile terminal respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920272924.5U CN209505708U (en) | 2019-03-04 | 2019-03-04 | A kind of chassis trolley and 3-D scanning imaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920272924.5U CN209505708U (en) | 2019-03-04 | 2019-03-04 | A kind of chassis trolley and 3-D scanning imaging system |
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| CN209505708U true CN209505708U (en) | 2019-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624507A (en) * | 2021-06-25 | 2021-11-09 | 北京航天发射技术研究所 | Vehicle chassis detecting system |
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2019
- 2019-03-04 CN CN201920272924.5U patent/CN209505708U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624507A (en) * | 2021-06-25 | 2021-11-09 | 北京航天发射技术研究所 | Vehicle chassis detecting system |
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