WO2020228381A1 - 车辆底盘检查装置、方法及车辆扫描系统 - Google Patents

车辆底盘检查装置、方法及车辆扫描系统 Download PDF

Info

Publication number
WO2020228381A1
WO2020228381A1 PCT/CN2020/073890 CN2020073890W WO2020228381A1 WO 2020228381 A1 WO2020228381 A1 WO 2020228381A1 CN 2020073890 W CN2020073890 W CN 2020073890W WO 2020228381 A1 WO2020228381 A1 WO 2020228381A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
image acquisition
vehicle chassis
inspection device
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/073890
Other languages
English (en)
French (fr)
Inventor
王永明
陶海鹏
韩文学
许艳伟
喻卫丰
胡煜
宗春光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nuctech Co Ltd
Original Assignee
Nuctech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nuctech Co Ltd filed Critical Nuctech Co Ltd
Publication of WO2020228381A1 publication Critical patent/WO2020228381A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means

Definitions

  • the present disclosure relates to the technical field of safety inspection, and in particular to a vehicle chassis inspection device, method, and vehicle scanning system.
  • Vehicle chassis inspection systems are mostly distributed at highway bayonet gates, border inspections, prisons, important meetings and security sites, and are used to check the problems of drugs, explosives, guns, and chassis modification on the vehicle chassis.
  • the chassis inspection system uses image acquisition equipment to take pictures of the vehicle chassis from underneath the vehicle, store the collected pictures locally, and provide an external interface to output the collected images.
  • chassis inspection system has various forms, it can only be simply used as a vehicle chassis image acquisition device.
  • a vehicle chassis inspection device including:
  • the vehicle speed collection component is configured to collect the driving speed information of the vehicle
  • An image acquisition component configured to take an image of the vehicle chassis
  • the control component is configured to determine the image collection period according to the traveling speed information collected by the vehicle speed collection component, and obtain the vehicle chassis image taken by the image acquisition component according to the image collection period.
  • the vehicle speed collection component includes a detection component configured to detect the position and driving speed information of the vehicle;
  • the vehicle speed collecting part is configured to collect the position and driving speed information of the vehicle from detection parts other than the vehicle chassis inspection device.
  • the shooting frequency of the image acquisition component is set according to the determined image acquisition period.
  • control component is configured to set the initial shooting frequency of the image acquisition component according to the driving speed information before the vehicle reaches the vehicle chassis inspection device, and according to the driving speed information during the vehicle passing through the vehicle chassis inspection device Adjust the shooting frequency of the image acquisition component in real time.
  • control component is configured to make the image acquisition component take pictures according to the photographing frequency required when the vehicle passes at the highest driving speed, and extract the photographed images according to the image acquisition period to form processed photographed images.
  • control component is configured to determine the image acquisition period according to the number of frames that the image acquisition component needs to acquire within a preset movement distance of the vehicle.
  • the vehicle chassis inspection device further includes a heating component, which is arranged near the image acquisition component for drying.
  • the image acquisition component is configured to acquire the degree of adhesion of the dryable object in the area corresponding to the photographing surface of the image acquisition component, and the heating component is turned on when the degree of adhesion of the dryable object exceeds a first preset threshold; and /or
  • the vehicle chassis inspection device further includes a temperature detection component configured to detect the temperature of the area surrounding the image acquisition component, and the heating component is turned on when the temperature is lower than a second preset threshold.
  • the vehicle chassis inspection device further includes a housing and an air blowing assembly, and the air blowing assembly includes:
  • Gas source configured to provide compressed gas
  • the air inlet is provided on the housing and is configured to introduce compressed gas provided by the gas source;
  • At least one set of blowing ports are arranged on the housing, and the blowing ports are facing the surface to be cleaned of the vehicle chassis inspection device, and are configured to blow the introduced compressed gas to the surface to be cleaned for decontamination.
  • the image acquisition component is configured to acquire the degree of adhesion on the surface to be cleaned, and the blowing assembly is turned on when the degree of adhesion exceeds a third preset threshold;
  • the blowing component is turned on at a preset time interval.
  • the vehicle chassis inspection device adopts a portable structure, and the vehicle chassis inspection device further includes a housing and a reflective component provided on the housing.
  • the reflective component includes a reflective surface inclined with respect to a horizontal plane and is configured to image the vehicle chassis , The photographing surface of the image capturing component is opposite to the reflecting surface.
  • the vehicle chassis inspection device further includes: a plurality of supplementary light sources arranged in the housing and located on the side of the image acquisition component away from the reflecting surface along the first direction, and each supplementary light source is spaced apart along the second direction , Is configured to provide an auxiliary light source to the image acquisition component; wherein the second direction is perpendicular to the first direction and the height direction of the vehicle chassis inspection device.
  • the vehicle chassis inspection device further includes:
  • the first window is provided on the housing and is configured to cover the photographing surface of the image acquisition component
  • the second window is provided on the housing and is configured to cover the irradiation surface of the supplemental light source
  • An air blowing assembly includes at least one set of air blowing ports facing the surface to be cleaned;
  • the surface to be cleaned includes at least one of a reflective surface, a first window and a second window.
  • the image capturing component is provided in the middle area of the housing along the second direction, and at least a part of the blowing ports are located on both sides of the installation side wall of the first window along the second direction, and face the reflective surface and the first window. At least one of them.
  • the housing includes a ramp structure, which slopes outward from top to bottom, and is provided in the end of the housing close to the vehicle entering direction in the first direction and the end of the housing in the second direction Wherein, the second direction is perpendicular to the first direction and the height direction of the vehicle chassis inspection device.
  • the vehicle chassis inspection device adopts an underground structure, and further includes a housing.
  • the image acquisition component is arranged in the housing, and the photographing surface is arranged upward.
  • the vehicle chassis inspection device further includes: a plurality of supplementary light sources arranged in the housing and arranged side by side on both sides of the image acquisition component in the second direction, configured to provide auxiliary light sources for the image acquisition component; Wherein, the second direction is perpendicular to the first direction and the height direction of the vehicle chassis inspection device.
  • the vehicle chassis inspection device further includes:
  • the third window is provided on the housing and is configured to entirely cover the irradiation surface of the supplemental light source and the photographing surface of the image acquisition component;
  • the blowing assembly includes at least one set of blowing openings, the blowing openings are arranged on the top of the casing and located on one side of the third window along the first direction, and the blowing openings face the third window.
  • the housing includes:
  • Box body the top surface of the box body is provided with an opening
  • the cover plate is located on the top of the box and closes the opening
  • the slope structure is arranged on the cover plate and extends along the second direction, and the slope structure is inclined outward from top to bottom; wherein the second direction is perpendicular to the first direction and the height direction of the vehicle chassis inspection device.
  • a vehicle scanning system including:
  • X-ray scanning device configured to scan the vehicle carried
  • the vehicle chassis image and the image scanned by the ray scanning device on the vehicle carried are all associated with the vehicle identity information.
  • the vehicle chassis inspection device uses battery power.
  • the radiographic scanning device and the vehicle chassis inspection device adopt wireless communication.
  • the vehicle scanning system further includes a license plate recognition device, and at least one of a vehicle type recognition device and a vehicle weighing device.
  • the vehicle chassis image is associated with the vehicle identity information obtained by the license plate recognition device, and the vehicle chassis image is associated with the vehicle type.
  • the vehicle type information obtained by the identification device is associated with at least one of the weight information obtained by the vehicle weighing device.
  • a vehicle chassis inspection method including:
  • the image acquisition period is determined according to the collected driving speed information, and the vehicle chassis image taken by the image acquisition component is acquired according to the image acquisition period.
  • the step of acquiring the vehicle chassis image taken by the image acquisition component according to the image acquisition cycle includes:
  • Make the image acquisition component take pictures of the vehicle chassis according to the set frequency.
  • the vehicle chassis inspection method before the step of setting the shooting frequency of the image acquisition component according to the image acquisition period, the vehicle chassis inspection method further includes:
  • the step of acquiring the vehicle chassis image taken by the image acquisition component according to the image acquisition cycle includes:
  • the captured images are drawn according to the image acquisition cycle to form processed captured images.
  • the step of acquiring the vehicle chassis image taken by the image acquisition component according to the image acquisition cycle includes:
  • the image collection period is determined.
  • Figure 1 is a schematic diagram of the module composition of some embodiments of the vehicle chassis inspection device of the present disclosure
  • Figure 2 is a schematic structural diagram of some embodiments of the vehicle chassis inspection device of the present disclosure.
  • FIG. 3 is a schematic structural diagram of other embodiments of the vehicle chassis inspection device of the present disclosure.
  • FIG. 4 is a schematic structural diagram of still other embodiments of the vehicle chassis inspection device of the present disclosure.
  • first and second appearing in the present disclosure are only for convenience of description, to distinguish different components with the same name, and do not indicate a sequence or a primary-secondary relationship.
  • the "first direction” mentioned later is consistent with the direction of vehicle passing, such as the X direction
  • the "second direction” is perpendicular to the first direction in the horizontal plane, such as the Y direction
  • the Z direction represents the vehicle
  • the height direction of the chassis inspection device is consistent with the height direction of the vehicle.
  • the chassis inspection system has various forms, it can only be simply used as a vehicle chassis image acquisition device.
  • the images collected when the vehicle is shifted through the chassis inspection system may be distorted or deformed; and the equipment has poor environmental adaptability. Dust, rain and snow have a greater impact on the normal use of the equipment and the quality of the image, requiring regular maintenance by personnel; in addition, although some
  • the product integrates a license plate recognition system, which can bind the captured chassis image to the license plate, but the function is still relatively single.
  • the present disclosure provides a vehicle chassis inspection device, method, and vehicle scanning system, which can improve the accuracy of vehicle chassis inspection.
  • the control component can determine the image collection period according to the vehicle driving speed information collected by the vehicle speed collection component, and obtain the vehicle chassis image taken by the image acquisition component according to the image collection period.
  • vehicle chassis inspection device The vehicle chassis image capturing process can be adjusted according to the vehicle speed. When the vehicle changes speed, the clarity of the vehicle chassis image can also be ensured, and the image can be prevented from blurring and deformation, thereby improving the accuracy and efficiency of the vehicle chassis inspection.
  • the present disclosure provides a vehicle chassis inspection device, which will be referred to as “inspection device” in the following.
  • vehicle speed acquisition component is configured to collect the driving speed information of the vehicle
  • the image acquisition component 4 is configured to capture images of the vehicle chassis.
  • a line scan camera or an area scan camera can be used.
  • the line scan camera can capture images of any length.
  • the control component 10 is configured to determine an image collection period according to the driving speed information collected by the vehicle speed collection component, and obtain the vehicle chassis image taken by the image acquisition component 4 according to the determined image collection period.
  • Such a vehicle chassis inspection device can adjust the parameters for acquiring the vehicle chassis image according to the vehicle speed. When the vehicle shifts, it can also ensure the clarity of the vehicle chassis image and prevent the image from being blurred and deformed, thereby improving the accuracy and efficiency of the vehicle chassis inspection.
  • the vehicle speed collection component may include a detection component 9 configured to detect the position and driving speed information of the vehicle. Since the detection component 9 is provided in the inspection device, the inspection device can be used independently to inspect the vehicle chassis, which improves the flexibility and convenience of use.
  • the detection component 9 may adopt an area laser scanner, a geomagnetic sensor, an ultrasonic sensor, or an infrared diffuse reflection sensor.
  • the housing 1 of the inspection device is provided with a communication interface
  • the vehicle speed collection component is configured to collect the position and driving speed information of the vehicle from the detection component 9 other than the inspection device.
  • the vehicle speed collection component may obtain the vehicle's position and driving speed information from the detection component 9 of the radiation scanning device 20, or it may obtain the vehicle's position and driving speed information from the detection component 9 separately installed outside the inspection device.
  • This kind of inspection device can be used in conjunction with other devices in the field to reduce the size and weight of the inspection device, and make it more convenient to carry when a portable inspection device is used; in addition, because the inspection device is closer to the ground, the inspection component 9 is installed At a higher position outside of the inspection device, the driving condition of the vehicle can be detected more accurately, the accuracy of the chassis inspection can be improved, and the damage caused by the rolling of the vehicle tire can also be avoided, and the reliability and safety of use can be improved.
  • chassis images based on vehicle speed information Three different ways to obtain chassis images based on vehicle speed information are given below.
  • the control component 10 determines the image acquisition period according to the driving speed information.
  • the image acquisition period decreases with the increase of the driving speed.
  • the shooting frequency of the image acquisition component 4 is determined according to the The image acquisition period is set, the control component 10 retains the original number of frames after acquiring the image captured by the image acquisition component 4, without performing extraction processing.
  • the shooting frequency required by the image acquisition component 4 to ensure a clear image at different driving speed points can be determined through experiments, and the inverse of the shooting frequency can be used to obtain the image acquisition period, and then the image acquisition period can be obtained by fitting. Change curve of driving speed.
  • the shooting frequency of the image acquisition component 4 is set in real time according to the vehicle driving speed.
  • a clear and undistorted image can be obtained by setting the shooting frequency of the image acquisition component 4, and the number of image acquisition frames can be acquired as needed, which can reduce the memory occupation of the control component 10 and increase the processing speed.
  • control part 10 is configured to set the initial shooting frequency of the image acquisition part 4 according to the driving speed information before the detection part 9 detects that the vehicle has reached the inspection device, and in the process of detecting that the vehicle passes the inspection device, according to the driving The speed information adjusts the shooting frequency of the image acquisition part 4 in real time.
  • This inspection method can set the photographing frequency matching the vehicle speed in advance before the vehicle passes the inspection device, which can improve the clarity of the images obtained by the vehicle during the initial period of time when the vehicle enters the inspection device, and obtain high-quality chassis images as a whole.
  • control component 10 is configured to make the image acquisition component 4 take photographs at the photographing frequency required when the vehicle passes at the highest speed, and extract the photographed images according to the determined image acquisition period to eliminate useless Frames to form processed captured images.
  • This embodiment enables the image acquisition component 4 to take high-frequency photography, and obtains a clear captured image through post-processing of the control component 10, which can reduce the need for the response speed of the image acquisition component 4, and the control component 10 can also respond to the shooting according to the situation.
  • the image is processed in real time or delayed.
  • control component 10 is configured to determine the number of frames that the image acquisition component 4 needs to collect within the preset movement distance, and determine the number of frames that need to be collected within the preset movement distance of the vehicle.
  • the image acquisition period is such that the image acquisition component 4 acquires chassis images in a fixed-length trigger mode.
  • the chassis image can be acquired in the manner of external triggering according to the distance parameter, which can reduce the real-time requirements of the image acquisition component 4.
  • the above three embodiments can ensure that the obtained vehicle chassis image is clear and reduce image distortion by introducing the driving speed information of the vehicle. Moreover, according to the detection component 9, it can be determined that the vehicle enters and exits the inspection device, and the image collection is turned on or off in time, thereby reducing the power consumption of the device and the amount of memory occupied by the control component.
  • the inspection device of the present disclosure may further include a heating component 3, which is provided at a position close to the image acquisition component 4 for drying.
  • the heating component 3 may be an electric heating component, such as an electric heating wire, an electric heating tube, or an electric heating plate, or it may be an electromagnetic heating component.
  • the inspection device includes a housing 1, and heating glass can be installed at a position of the housing 1 close to the image acquisition component 4, or at least part of the housing 1 close to the image acquisition component 4 can be directly designed as heating glass.
  • This method has a simple structure and can reduce the space occupied by the heating component 3.
  • a heating component 3 may be provided on the top of the casing 1 to improve the drying efficiency.
  • the image acquisition component 4 is configured to acquire the degree of adhesion of the dryable object in the corresponding area of the photographing surface of the image acquisition component 4,
  • the dryable object may be snow, rain, or other liquid or solid objects that can be heated and evaporated, and the heating component 3 Turn on when the degree of adhesion of the dryable material exceeds the first preset threshold.
  • the degree of adhesion of the drying material can be determined by the image acquisition component, and the image can be used to accurately identify whether the lens is blocked by rain or snow, so as to accurately determine the timing of turning on the heating component 3.
  • the vehicle chassis inspection device further includes a temperature detection component 3A configured to detect the temperature of the area around the image acquisition component 4, and the heating component 3 is turned on when the temperature is lower than the second preset threshold.
  • This embodiment can automatically turn on the heating element 3 when low temperature is detected to prevent snow from accumulating in rainy and snowy weather. This judgment method is simple and reliable.
  • control component 10 may determine the clarity of the image taken by the image acquisition component 4 through an image recognition algorithm to determine whether it is working in rain or snow. This method does not require additional detection components and can reduce the size of the inspection device.
  • This embodiment can automatically turn on the heating function to melt snow and dry the surface water droplets when it is determined that the area corresponding to the photographing surface of the image acquisition component 4 is covered by rain, snow, etc., to achieve the purpose of removing snow and water, and to ensure the image shooting effect, even in rain In snowy weather or when liquid is attached to the inspection device, the accuracy of the vehicle chassis inspection can also be improved, thereby improving the versatility of use in different climates and different regions.
  • the inspection device of the present disclosure further includes a housing 1 and a blowing assembly 6.
  • the blowing assembly 6 includes a gas source configured to provide compressed gas, and the gas source includes An external air compressor, an internal or external cylinder, etc.; an air inlet 61, which is provided on the housing 1, and is configured to introduce compressed gas provided by an air source; and at least one set of blowing ports 62, which are provided on the housing 1
  • the blowing port 62 faces the surface to be cleaned of the vehicle chassis inspection device, and is configured to blow the introduced compressed gas to the surface to be cleaned for decontamination.
  • the surface to be cleaned may be a lens of an optical device, a reflective surface, or an illuminated surface of a fill light.
  • This embodiment can automatically clean the surface to be cleaned of the inspection device to remove dust or particles on the surface to be cleaned, reduce the false detection rate of optical devices through effective decontamination, and avoid scratches on the surface to be cleaned by wiping .
  • the maintenance cycle of the inspection device can be lengthened, maintenance costs and maintenance difficulties can be reduced, and the use experience of the equipment can be improved.
  • the automatic cleaning and chassis inspection can be carried out at the same time, and there is no need to stop the machine when the surface is cleaned, which can improve the efficiency of the equipment and improve the customer's experience of using the equipment.
  • the image acquisition component 4 is configured to acquire the degree of adhesion on the surface to be cleaned, and the blowing assembly 6 is turned on when the degree of adhesion exceeds a third preset threshold.
  • This embodiment can perform decontamination when it is determined that the surface to be cleaned is dirty, and the decontamination timing can be determined according to the actual degree of contamination, so as to prevent frequent activation of the blowing assembly 6.
  • the area laser scanner may have a self-detection function, and is configured to send a prompt signal when it detects that the dirtiness of the surface to be cleaned exceeds the third preset threshold.
  • the blowing assembly 6 is turned on at a preset time interval.
  • This embodiment can periodically decontaminate the optical device at a certain time interval, without judging the timing of decontamination, and the control is simple, and the cleanliness of the optical device can be ensured by regular decontamination, and the working reliability is improved; because there is no need to set the dirt level detection Therefore, it is not affected by the working environment and can be reliably decontaminated in harsh working environments.
  • the time interval can be set according to the cleanliness of the use environment.
  • the inspection device of this embodiment can also be used normally in areas with a lot of sand and dust, and the air blowing assembly 6 can also assist in removing rain and snow, and has strong environmental adaptability. After blowing the rain and snow through the blowing assembly 6, the time for the heating part 3 to dry the rain and snow on the surface of the housing 1 can be shortened, and the adaptability of the inspection device in rain and snow weather is improved, and it is very practical when used outdoors. It solves the problem that existing products cannot be used normally in rain and snow seasons.
  • the air blowing assembly 6 also includes a solenoid valve for controlling the on and off of the air circuit.
  • the control component 10 opens the solenoid valve, and the blowing port 62 releases high-pressure gas to blow away the floating dust and particles on the surface to be cleaned.
  • the blowing mode can be continuous or pulsed. After cleaning is completed or when the air pressure provided by the air source is lower than the preset pressure, the solenoid valve is closed and the air compressor is started to increase the pressure.
  • the air path between the air source and the air blowing port 62 is sequentially provided with a filter and a dryer to remove moisture and impurities in the external air, and prevent impurities carried in the air from impacting on the surface to be cleaned and causing scratches. Damage, or the moisture in the gas adheres to the surface to be cleaned and affects the detection or imaging, and it can also prevent damage to the components in the gas system.
  • the air blowing assembly 6 further includes: an overflow valve and a pressure detection component.
  • the overflow valve is arranged downstream of the gas source and the overflow pressure is adjustable.
  • the pressure detection component is used to detect the supply pressure of the gas source so as to Adjust the overflow pressure of the overflow valve to realize the pressure regulation function of the air circuit system. In this way, the air pressure can be adjusted according to the degree of adhesion to ensure sufficient air pressure for decontamination, while saving compressed air and preventing excessive air pressure from causing damage to the cleaned surface.
  • the control component 10 can also turn on the air compressor in the air source when the detection value of the pressure detection component is lower than the preset pressure, so as to ensure a sufficient supply of compressed air and the decontamination function can be turned on at any time.
  • the vehicle chassis inspection device adopts a portable structure.
  • the vehicle chassis inspection device also includes a housing 1 and a reflective component provided on the housing 1.
  • the reflective component includes an inclined reflective surface 5,
  • the photographing surface of the image acquisition component 4 is opposite to the reflecting surface 5, including parallel and oblique opposing situations, and is used to acquire the vehicle chassis imaging in the reflecting surface 5 to indirectly obtain the vehicle chassis image through the reflecting surface 5. .
  • the housing 1 has a substantially flat rectangular parallelepiped structure as a whole, and the reflective component is provided at the end of the housing 1 away from the vehicle entering in the first direction, and the reflective surface 5 faces the vehicle entering direction and extends along the second direction to The edge of the shell 1.
  • the image acquisition component 4 is arranged horizontally, and the photographing surface and the reflecting surface 5 are arranged oppositely. The distance between the reflecting surface 5 and the photographing surface gradually increases from bottom to top, and the incident angle formed between the photographing direction and the reflecting surface is an acute angle, such as 45°.
  • the image acquisition component 4 is arranged in the middle area of the housing 1 along the second direction, and installation side walls are provided on both sides, and the installation side walls are spaced apart from the bottom of the reflective surface 5. In order to increase the shooting area of the image acquisition component 4, the image acquisition component 4 may protrude from the installation side wall and be covered with a curved first window 41.
  • the portable inspection device is flexible and convenient to use. This structure can reduce the overall height of the inspection device. Since the portable inspection device is directly placed on the ground for use, it is suitable for the inspection requirements of vehicles with low chassis. Alternatively, the photographing surface of the image acquisition component 4 may also be arranged obliquely with respect to the horizontal plane.
  • the inspection device has a width of 400mm and a height of 75mm. It has a compact appearance and can inspect vehicles with low chassis and narrow wheelbases. , Improve the portability and practicality of the system.
  • this inspection device further includes: a plurality of supplementary light sources 2, for example, LED light sources or laser light sources, etc., are arranged in the housing 1, and located on the side of the image acquisition component 4 away from the reflective surface 5 along the first direction
  • a plurality of supplementary light sources 2 is arranged at intervals along the second direction, and the irradiation surface of the supplementary light source 2 can be arranged upwards, and is configured to provide an auxiliary light source for the image acquisition component 4, specifically, can increase the brightness of the vehicle chassis and the reflective surface 5 , So that the image capturing component 4 obtains a clear image.
  • the first direction is consistent with the vehicle passing direction
  • the second direction is perpendicular to the first direction.
  • this inspection device further includes: a first window 41, which is provided on the housing 1, and is configured to cover the photographing surface of the image acquisition component 4; and a second window 21, which is provided on the housing 1, and is configured to cover The irradiation surface of the supplementary light source 2; and the blowing assembly 6, which includes at least one set of blowing ports 62, which face the surface to be cleaned.
  • the surface to be cleaned includes at least one of the reflective surface 5, the first window 41 and the second window 21.
  • the image capturing component 4 is provided in the middle area of the housing 1 along the second direction, and at least a part of the blowing ports 62 are located on both sides of the installation side wall of the first window 41 along the second direction, and face the reflective surface 5 and at least one of the first window 41.
  • the air blowing port 62 provided here can simultaneously blow the area corresponding to the reflective surface 5 and the imaging surface of the image capturing component 4.
  • a blowing port 62 may be provided on the top surface of the housing 1.
  • the housing 1 includes a ramp structure 13, which is inclined outward from top to bottom, and is provided at the end of the housing 1 close to the vehicle entry direction along the first direction and the housing 1 along the second direction At least one of the ends of the
  • the chassis is located directly above the inspection device, and the tires on both sides are located on the left and right sides of the inspection device.
  • the tires may press on the top of the inspection device and pass through. Prevent the tire from colliding with the inspection device, improve the driving comfort of the vehicle, and increase the service life of the inspection device.
  • the inspection device adopts a buried structure, the image acquisition component 4 is arranged in the housing 1, and the photographing surface is arranged upward.
  • the main part of the shell 1 is embedded under the ground, which can reduce the exposed ground height and meet the needs of vehicles with lower chassis; moreover, the inspection device is firmly installed, and no positional misalignment occurs during the inspection process, which improves inspection accuracy.
  • this inspection device further includes: a plurality of supplementary light sources 2 arranged in the housing 1, and arranged side by side on both sides of the image acquisition component 4 in the second direction, so that the supplementary light on both sides is balanced ,
  • the illumination surface of the supplemental light source 2 faces upward, and is configured to provide an auxiliary light source to the image acquisition component 4 to obtain a clearer image.
  • this inspection device further includes: a third window 42 provided on the housing 1 and configured to entirely cover the irradiation surface of the supplementary light source 2 and the photographing surface of the image acquisition component 4.
  • the third window 42 may It is a rectangular window.
  • the blowing assembly 6 includes at least one set of blowing openings 62.
  • the blowing openings 62 are provided on the top of the housing 1 and located on one side of the third window 42 along the first direction, and the blowing openings 62 face the third window 42.
  • the blowing port 62 may be horizontally arranged, so that the gas is blown along the tangential direction of the third window 42.
  • the set of blowing ports 62 can simultaneously blow the image acquisition component 4 and the supplementary light source 2 and has a simple structure.
  • the housing 1 includes: a box body 11, the top surface of the box body 11 is provided with an opening, and the opening is provided with a mounting flange; a cover plate 12 is provided on the mounting flange on the top of the box body 11 and closes the opening And the slope structure 13, which is provided on the cover 12 and extends in the second direction, the slope structure 13 is inclined from top to bottom outwards, that is, the slope structure 13 slopes from bottom to bottom toward the side away from the image acquisition component 4; Wherein, the second direction is perpendicular to the vehicle passing direction.
  • the slope structure 13 may be provided on both sides of the image capturing part 4 in the first direction.
  • the cover plate 12 is provided with a first mounting block 81 and a second mounting block 82 arranged adjacently or at intervals along the first direction.
  • the image acquisition component 4 and the supplementary light source 2 are arranged in the box 11 and the upper part is located
  • the third window 42 is provided on the top of the first installation block 81.
  • the top of the second mounting block 82 is higher than the first mounting block 81
  • the blowing port 62 is provided on the side wall of the second mounting block 82 facing the first mounting block 81 and higher than the first mounting block 81 so as to lead out from the blowing port 62
  • the airflow sweeps the surface of the third window 42.
  • the second mounting block 82 is located between the first mounting block 81 and the vehicle entry end along the first direction.
  • the ramp structure 13 may be provided at the ends of the first mounting block 81 and the second mounting block 82 away from each other.
  • the box body 11 and the cover 12 can be located below the ground as a whole, and only the first mounting block 81 and the second mounting block 82 are located above the ground, and the exposed height can be reduced.
  • the first mounting block 81 and the second mounting block When the sum of the size of 82 along the first direction is smaller than the size of the cover 12, the area of the exposed part of the inspection device can also be reduced.
  • the present disclosure also provides a vehicle scanning system.
  • a vehicle scanning system includes: a ray scanning device 20 configured to scan the vehicle’s carry items such as containers.
  • the ray scanning device 20 includes a ray source and The detector on the door frame is used to receive the radiation emitted by the radiation source to inspect the vehicle carried; and the inspection device of the above embodiment.
  • the vehicle chassis image and the image scanned by the ray scanning device 20 of the vehicle carried are all associated with the vehicle identity information.
  • the vehicle identity information may be a license plate number or a special number.
  • the inspection device may be installed on the ground directly below the door frame of the ray scanning device 20, or on the ground that does not reach the door frame, or may be installed on the ground beyond the door frame.
  • the housing 1 of the inspection device is provided with an input and output interface, and the vehicle speed collection component obtains the vehicle position and vehicle speed information detected by the detection component 9 in the radiation scanning device 20 through the input and output interface.
  • the detection component 9 detects that the vehicle is about to arrive, the inspection device and the radiation scanning device 20 can be turned on at the same time. Or the inspection device can be used alone.
  • the inspection device can use at least one of the following power supply methods:
  • the inspection device has a plug that can be connected to an external socket for power supply. In this way, the inspection device can meet the needs of long-term use and provide stable power supply.
  • the inspection device is powered by the power supply of the radiation scanning device 20. This method can reduce the requirement for setting an external power source, and it is more flexible to use with the radiation scanning device 20.
  • the inspection device is powered by a battery, and the battery capacity can be designed according to the battery life requirement, and the battery can also be replaced to increase the continuous working time of the system. This method can improve the flexibility of using the inspection device.
  • the inspection device can be flexibly transferred between different radiation scanning devices 20 according to requirements, without considering the power connection problem, and it is convenient to use.
  • the inspection device can also be provided with battery power supply and external power supply at the same time, and the control component 10 is configured to select a power supply strategy according to the time the inspection device needs to continue to work, so as to select a suitable power supply mode.
  • both the ray scanning device 20 and the inspection device are provided with a wireless data transmission module 8 for wireless communication.
  • a wireless data transmission module 8 for wireless communication.
  • control component 10 sends control instructions to each image acquisition component and the supplementary light source 2 in the inspection device, and each image acquisition component uploads the vehicle chassis image information to the control component 10.
  • the control component 10 of the inspection device and the control component of the radiation scanning device 20 can be installed separately or integrated.
  • the control component 10 of the inspection device can be directly embedded in the control component of the radiation scanning device 20 to further reduce inspections.
  • the volume and weight of the device improve portability.
  • the inspection device When the inspection device is powered by a battery and wirelessly communicates with the radiation scanning device 20, the inspection device and the radiation scanning device 20 physically form two independent components, without any wiring, easy to arrange and adjust the position of the inspection device, and can also Improve the reliability and safety of system work.
  • a wire hole 7 may be provided on the side of the housing 1 to allow the power cord and the communication wire to pass through.
  • the air inlet 61 and the wire passing hole 7 can also be set as an integrated hole 7'.
  • the vehicle scanning system of the present disclosure further includes a license plate recognition device 30, and at least one of the vehicle type recognition device 40 and the vehicle weighing device 50, and the vehicle chassis image is related to the vehicle identity information obtained by the license plate recognition device 30
  • the vehicle chassis image is associated with at least one of the vehicle type information obtained by the vehicle type recognition device 40 and the weight information obtained by the vehicle weighing device 50.
  • inspection method includes:
  • Step 101 Collect the driving speed information of the vehicle through the vehicle speed collection component.
  • Step 102 Determine an image collection period according to the collected driving speed information, and obtain the vehicle chassis image taken by the image acquisition component 4 according to the determined image collection period.
  • steps 101 and 102 can be executed cyclically during the chassis inspection process, step 101 is executed before 102, and step 102 can be executed by the control component 10.
  • This inspection method can adjust the parameters of obtaining the vehicle chassis image according to the vehicle speed. When the vehicle shifts, it can also ensure the clarity of the vehicle chassis image and prevent the image from blurring and deformation, thereby improving the accuracy and efficiency of the vehicle chassis inspection.
  • obtaining the vehicle chassis image captured by the image capturing component 4 according to the image capturing cycle in step 102 specifically includes:
  • Step 201 Set the shooting frequency of the image acquisition component 4 according to the image acquisition period
  • Step 202 Enable the image acquisition component 4 to capture images of the vehicle chassis according to the set shooting frequency.
  • Steps 201 and 202 can be executed sequentially by the control unit 10.
  • clear and undistorted images can be obtained by setting the shooting frequency of the image acquisition unit 4, and the number of image collection frames can be acquired as needed, which can reduce the memory usage of the control unit 10 , Improve processing speed.
  • this inspection method further includes:
  • Step 203 Determine whether the vehicle has reached the vehicle chassis inspection device. If not, set the initial shooting frequency of the image acquisition component 4 according to the driving speed information; if it is passing, adjust the shooting frequency of the image acquisition component 4 in real time according to the driving speed information .
  • This inspection method can set the photographing frequency matching the vehicle speed in advance before the vehicle passes the inspection device, which can improve the clarity of the images obtained by the vehicle during the initial period of time when the vehicle enters the inspection device, and obtain high-quality chassis images as a whole.
  • acquiring the vehicle chassis image captured by the image capturing component 4 according to the image capturing cycle in step 102 specifically includes:
  • Step 301 Make the image acquisition component 4 perform shooting according to the shooting frequency required when the vehicle passes at the highest speed.
  • Step 302 Extract the captured images according to the image collection period to form processed captured images.
  • Steps 301 and 302 can be executed by the control component 10 sequentially.
  • the data can be uploaded in batches.
  • the sequence extraction process is performed in step 302 to increase the data processing speed.
  • acquiring the vehicle chassis image captured by the image capturing component 4 according to the image capturing cycle in step 102 specifically includes:
  • Step 401 Determine the number of frames that the image acquisition component 4 needs to collect within a preset movement distance
  • Step 402 Determine the image collection period according to the number of frames that the vehicle needs to collect within the preset movement distance.
  • the chassis image can be acquired in the manner of external triggering according to the distance parameter, which can reduce the real-time requirements of the image acquisition component 4.
  • the above three embodiments can ensure that the obtained vehicle chassis image is clear and reduce image distortion by introducing the driving speed information of the vehicle. Moreover, according to the detection component 9, it can be determined that the vehicle enters and exits the inspection device, and the image collection is turned on or off in time, thereby reducing the power consumption of the device and the amount of memory occupied by the control component.
  • control components and algorithm steps of the present disclosure can be implemented by electronic hardware, computer software, or a combination of the two.
  • the software module can be placed in any form of computer storage medium.

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Studio Devices (AREA)

Abstract

本公开涉及一种车辆底盘检查装置、方法及车辆扫描系统，其中，车辆底盘检查装置包括：车速采集部件，被配置为采集车辆的行驶速度信息；图像获取部件(4)，被配置为拍摄车辆底盘图像；和控制部件(10)，被配置为根据车速采集部件采集的行驶速度信息确定图像采集周期，并按照图像采集周期获取图像获取部件(4)拍摄的车辆底盘图像。

Description

车辆底盘检查装置、方法及车辆扫描系统
本公开是以申请号为 201910387643.9，申请日为 2019年5月10日的中国申请为基础，并主张其优先权，该中国申请的公开内容在此作为整体引入本公开中。
技术领域
本公开涉及安全检查技术领域，尤其涉及一种车辆底盘检查装置、方法及车辆扫描系统。
背景技术
车辆底盘检查系统多分布在公路卡口、边防检查、监狱、重要会议和安保场所，用于检查车辆底盘夹藏毒品、爆炸物、枪支以及底盘改装等问题。底盘检查系统采用图像采集设备从车辆下方对车辆底盘进行拍摄，并将采集的图片进行本地存储，还可提供对外接口输出采集图像。
发明人所知晓的相关技术中，底盘检查系统虽然具有多种形式，但只能简单地作为一个车辆底盘图像采集设备。
发明内容
根据本公开的一方面，提供了一种车辆底盘检查装置，包括：
车速采集部件，被配置为采集车辆的行驶速度信息；
图像获取部件，被配置为拍摄车辆底盘图像；和
控制部件，被配置为根据车速采集部件采集的行驶速度信息确定图像采集周期，并按照图像采集周期获取图像获取部件拍摄的车辆底盘图像。
在一些实施例中，车速采集部件包括检测部件，被配置为检测车辆的位置和行驶速度信息；或者
车速采集部件被配置为从车辆底盘检查装置以外的检测部件中采集车辆的位置和行驶速度信息。
在一些实施例中，图像获取部件的拍摄频率根据确定的图像采集周期设定。
在一些实施例中，控制部件被配置为在车辆到达车辆底盘检查装置之前，根据行驶速度信息设定图像获取部件的初始拍摄频率，并在车辆通过车辆底盘检查装置的过 程中，根据行驶速度信息实时调整图像获取部件的拍摄频率。
在一些实施例中，控制部件被配置为使图像获取部件按照车辆以最高行驶速度通过时所需的拍摄频率进行拍摄，并对拍摄图像按照图像采集周期抽列，以形成处理后的拍摄图像。
在一些实施例中，控制部件被配置为根据图像获取部件在车辆预设的运动距离内需要采集的帧数，确定图像采集周期。
在一些实施例中，车辆底盘检查装置还包括加热部件，设在靠近图像获取部件的位置，用于实现烘干。
在一些实施例中，图像获取部件被配置为获取自身拍摄面对应区域的可烘干物的附着程度，加热部件在可烘干物的附着程度超过第一预设阈值的情况下开启；和/或
车辆底盘检查装置还包括温度检测部件，被配置为检测图像获取部件周围区域的温度，加热部件在温度低于第二预设阈值的情况下开启。
在一些实施例中，车辆底盘检查装置还包括壳体和吹气组件，吹气组件包括：
气源，被配置为提供压缩气体；
进气口，设在壳体上，被配置为引入气源提供的压缩气体；和
至少一组吹气口，设在壳体上，吹气口朝向车辆底盘检查装置的待清洁表面，被配置使引入的压缩气体吹向待清洁表面进行除污。
在一些实施例中，图像获取部件被配置为获取待清洁表面上的粘污程度，吹气组件在粘污程度超过第三预设阈值时开启；或者
吹气组件按照预设的时间间隔开启。
在一些实施例中，车辆底盘检查装置采用便携式结构，车辆底盘检查装置还包括壳体和设在壳体上的反射部件，反射部件包括相对于水平面倾斜的反射面，被配置为对车辆底盘成像，图像获取部件的拍摄面与反射面相对。
在一些实施例中，车辆底盘检查装置还包括：多个补光光源，设在壳体内，且沿第一方向位于图像获取部件远离反射面的一侧，各个补光光源沿第二方向间隔设置，被配置为向图像获取部件提供辅助光源；其中，第二方向垂直于第一方向和车辆底盘检查装置的高度方向。
在一些实施例中，车辆底盘检查装置还包括：
第一窗口，设在壳体上，被配置为覆盖图像获取部件的拍摄面；
第二窗口，设在壳体上，被配置为覆盖补光光源的照射面；和
吹气组件，吹气组件包括至少一组吹气口，吹气口朝向待清洁表面；
其中，待清洁表面包括反射面、第一窗口和第二窗口中的至少一处。
在一些实施例中，图像获取部件沿第二方向设在壳体的中间区域，至少部分组吹气口位于第一窗口的安装侧壁沿第二方向的两侧，且朝向反射面和第一窗口中的至少一处。
在一些实施例中，壳体包括斜坡结构，斜坡结构从上至下朝外倾斜，且设在壳体沿第一方向靠近车辆驶入方向的端部和壳体沿第二方向的端部中的至少一个位置；其中，第二方向垂直于第一方向和车辆底盘检查装置的高度方向。
在一些实施例中，车辆底盘检查装置采用地埋式结构，还包括壳体，图像获取部件设在壳体内，且拍摄面朝上设置。
在一些实施例中，车辆底盘检查装置还包括：多个补光光源，设在壳体内，且并排设在图像获取部件沿第二方向的两侧，被配置为向图像获取部件提供辅助光源；其中，第二方向垂直于第一方向和车辆底盘检查装置的高度方向。
在一些实施例中，车辆底盘检查装置还包括：
第三窗口，设在壳体上，被配置为整体覆盖补光光源的照射面和图像获取部件的拍摄面；和
吹气组件，吹气组件包括至少一组吹气口，吹气口设在壳体顶部，且沿第一方向位于第三窗口的一侧，吹气口朝向第三窗口。
在一些实施例中，壳体包括：
箱体，箱体的顶面设有开口；
盖板，设在箱体顶部且封闭开口；和
斜坡结构，设在盖板上，且沿第二方向延伸，斜坡结构从上至下向外倾斜；其中，第二方向垂直于第一方向和车辆底盘检查装置的高度方向。
根据本公开的另一方面，提供了一种车辆扫描系统，包括：
射线扫描装置，被配置为对车辆携带品进行扫描；和
上述实施例的车辆底盘检查装置；
其中，车辆底盘图像和射线扫描装置对车辆携带品扫描的图像均与车辆身份信息相关联。
在一些实施例中，车辆底盘检查装置采用电池供电。
在一些实施例中，射线扫描装置与车辆底盘检查装置采用无线通信。
在一些实施例中，车辆扫描系统还包括车牌识别装置，以及车型识别装置和车辆称重装置中的至少一种，车辆底盘图像与车牌识别装置获得的车辆身份信息相关联，车辆底盘图像与车型识别装置获得的车型信息和车辆称重装置获得的重量信息中的至少一种相关联。
根据本公开的再一方面，提供了一种车辆底盘检查方法，包括：
通过车速采集部件采集车辆的行驶速度信息；和
根据采集的行驶速度信息确定图像采集周期，并按照图像采集周期获取图像获取部件拍摄的车辆底盘图像。
在一些实施例中，按照图像采集周期获取图像获取部件拍摄的车辆底盘图像的步骤包括：
根据图像采集周期设定图像获取部件的拍摄频率；
使图像获取部件按照设定的拍摄频率拍摄车辆底盘图像。
在一些实施例中，在根据图像采集周期设定图像获取部件的拍摄频率的步骤之前，车辆底盘检查方法还包括：
判断车辆是否到达车辆底盘检查装置，如果未到达，则根据行驶速度信息设定图像获取部件的初始拍摄频率；如果正在通过，则根据行驶速度信息实时调整图像获取部件的拍摄频率。
在一些实施例中，按照图像采集周期获取图像获取部件拍摄的车辆底盘图像的步骤包括：
使图像获取部件按照车辆以最高行驶速度通过时所需的拍摄频率进行拍摄；
对拍摄图像按照图像采集周期抽列，以形成处理后的拍摄图像。
在一些实施例中，按照图像采集周期获取图像获取部件拍摄的车辆底盘图像的步骤包括：
确定图像获取部件在预设的运动距离内需要采集的帧数；
根据车辆在预设的运动距离内需要采集的帧数，确定图像采集周期。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本申请的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为本公开车辆底盘检查装置的一些实施例的模块组成示意图；
图2为本公开车辆底盘检查装置的一些实施例的结构示意图；
图3为本公开车辆底盘检查装置的另一些实施例的结构示意图；
图4为本公开车辆底盘检查装置的再一些实施例的结构示意图。
附图标记说明
1、壳体；11、箱体；12、盖板；13、斜坡结构；2、补光光源；21、第二窗口；3、加热部件；3A、温度检测部件；4、图像获取部件；41、第一窗口；42、第三窗口；5、反射面；6、吹气组件；61、进气口；62、吹气口；7、过线孔；7’、集成孔；8、无线数据传输模块；9、检测部件；10、控制部件；20、射线扫描装置；30、车牌识别装置；40、车型识别装置；50、车辆称重装置。
具体实施方式
以下详细说明本公开。在以下段落中，更为详细地限定了实施例的不同方面。如此限定的各方面可与任何其他的一个方面或多个方面组合，除非明确指出不可组合。尤其是，被认为是优选的或有利的任何特征可与其他一个或多个被认为是优选的或有利的特征组合。
本公开中出现的“第一”、“第二”等用语仅是为了方便描述，以区分具有相同名称的不同组成部件，并不表示先后或主次关系。
在本公开的描述中，采用了“上”、“下”、“顶”、“底”、“前”、“后”、“内”和“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开，而不是指示或暗示所指的装置必须具有特定的方位、以特定的方位构造和操控，因此不能理解为对本公开保护范围的限制。如图2和图3所示，后面提到的“第一方向”与车辆通过方向一致，如X方向，“第二方向”在水平面内垂直于第一方向，如Y方向，Z方向表示车辆底盘检查装置的高度方向，与车辆高度方向一致。
发明人所知晓的相关技术中，底盘检查系统虽然具有多种形式，但只能简单地作为一个车辆底盘图像采集设备。在车辆通过底盘检查系统发生变速时采集的图像可能失真或变形；而且设备环境适应性差，粉尘和雨雪天气对设备的正常使用和图像的质量影响较大，需要人员定期维护；另外，虽然部分产品集成了车牌识别系统，可将拍 摄的底盘图像与车牌绑定，不过功能仍比较单一。
为此，本公开提供了一种车辆底盘检查装置、方法及车辆扫描系统，能够提高车辆底盘检查的准确性。
本公开一些实施例的车辆底盘检查装置，控制部件能够根据车速采集部件采集的车辆行驶速度信息确定图像采集周期，并按照图像采集周期获取图像获取部件拍摄的车辆底盘图像，此种车辆底盘检查装置能够根据车速调整车辆底盘图像拍摄过程，在车辆发生变速时，也能保证车辆底盘图像的清晰度，防止图像出现模糊变形，从而提高车辆底盘检查的准确度和效率。
如图1所示，本公开提供了一种车辆底盘检查装置，后续简称“检查装置”，在一些实施例中，包括：车速采集部件、图像获取部件4和控制部件10。其中，车速采集部件被配置为采集车辆的行驶速度信息；图像获取部件4被配置为拍摄车辆底盘图像，例如，可采用线阵相机或面阵相机等，线阵相机可拍摄任意长度图像，适用于对不同长度车辆底盘的拍摄；控制部件10被配置为根据车速采集部件采集的行驶速度信息确定图像采集周期，并按照已确定的图像采集周期获取图像获取部件4拍摄的车辆底盘图像。
此种车辆底盘检查装置能够根据车速调整获取车辆底盘图像的参数，在车辆发生变速时，也能保证车辆底盘图像的清晰度，防止图像出现模糊变形，从而提高车辆底盘检查的准确度和效率。
在该实施例中，车速采集部件可包括检测部件9，被配置为检测车辆的位置和行驶速度信息。由于检测部件9设在检查装置中，因此，该检查装置可独立使用对车辆底盘进行检查，提高使用的灵活性和便捷性。例如，检测部件9可采用区域激光扫描仪、地磁传感器、超声波传感器或红外漫反射传感器等。
或者检查装置的壳体1上设有通信接口，车速采集部件被配置为从检查装置以外的检测部件9中采集车辆的位置和行驶速度信息。例如，车速采集部件可以从射线扫描装置20的检测部件9中获取车辆的位置和行驶速度信息，也可以从检查装置以外独立安装的检测部件9中获取车辆的位置和行驶速度信息。
此种检查装置可与场地中的其它装置配合使用，减小检查装置的体积和重量，在采用便携式检查装置时可使携带更方便；另外，由于检查装置离地面较近，将检测部件9安装于检查装置以外更高的位置，能够更准确地检测到车辆的行驶情况，提高底盘检查的准确性，而且也可避免受到车辆轮胎碾压而发生损坏，提高使用的可靠性和 安全性。
下面给出根据车辆行驶速度信息获取底盘图像的三种不同方式。
在第一种实施例中，控制部件10根据行驶速度信息确定图像采集周期，图像采集周期随行驶速度的增加而减小，在对车辆底盘检查的过程中，图像获取部件4的拍摄频率根据确定的图像采集周期设定，控制部件10在获得图像获取部件4拍摄的图像后保留原有帧数，无需进行抽列处理。
具体地，可通过试验确定车辆在不同行驶速度点下为了保证图像清晰图像获取部件4所需的拍摄频率，并将拍摄频率求倒数得到图像采集周期，再通过拟合得出图像采集周期随车辆行驶速度的变化曲线。在对车辆底盘检查的过程中，图像获取部件4的拍摄频率根据车辆行驶速度实时设定。
该实施例通过设定图像获取部件4的拍摄频率可获得清晰不变形的图像，按需获取图像采集帧数，可减小控制部件10的内存占用量，提高处理速度。
进一步地，控制部件10被配置为在检测部件9检测到车辆到达检查装置之前，根据行驶速度信息设定图像获取部件4的初始拍摄频率，并在检测到车辆通过检查装置的过程中，根据行驶速度信息实时调整图像获取部件4的拍摄频率。
该检查方式能够在车辆通过检查装置之前，提前设定与车速匹配的拍摄频率，可提高车辆在进入检查装置的初始时间段内获取图像的清晰程度，整体获得高质量的底盘图像。
在第二种实施例中，控制部件10被配置为使图像获取部件4按照车辆以最高行驶速度通过时所需的拍摄频率进行拍摄，并对拍摄图像按照确定的图像采集周期抽列，剔除无用帧，以形成处理后的拍摄图像。
该实施例可使图像获取部件4高频拍摄，并通过控制部件10后处理的方式获得清晰的拍摄图像，能够降低对图像获取部件4反应速度的需求，控制部件10也可根据情况对拍摄的图像进行实时处理或延时处理。
在第三种实施例中，控制部件10被配置为确定所述图像获取部件4在预设的运动距离内需要采集的帧数，并根据车辆在预设的运动距离内需要采集的帧数确定所述图像采集周期，以使图像获取部件4按照定长触发的方式获取底盘图像。
该实施例可以按照距离参数进行外触发的方式获取底盘图像，可降低对图像获取部件4的实时性要求。
上述三种实施例通过引入车辆的行驶速度信息，可保证获得的车辆底盘图像清 晰，减小图像畸变。而且，根据检测部件9可判断车辆进入与离开检查装置，以及时开启或关闭图像采集，减小装置耗电量和占用控制部件的内存量。
在一些实施例中，如图2和图3所示，本公开的检查装置还可包括加热部件3，加热部件3设在靠近图像获取部件4的位置，用于实现烘干。例如，加热部件3可以是电加热部件，例如电热丝、电热管或电热板等，或者也可以是电磁加热部件等。
在一种实现方式中，检查装置包括壳体1，可在壳体1靠近图像获取部件4的位置安装加热玻璃，或者直接将靠近图像获取部件4的至少部分壳体1设计为加热玻璃，此种方式结构简单，可减小加热部件3占用的空间。
在另一种实现方式中，由于雨雪等可烘干物一般积聚在壳体1顶部，因此，可在壳体1的顶部设置加热部件3，以便提高烘干效率。
在此基础上，图像获取部件4被配置为获取自身拍摄面对应区域的可烘干物的附着程度，可烘干物可以是雪、雨或其它可加热蒸发的液体或固体物，加热部件3在可烘干物的附着程度超过第一预设阈值的情况下开启。该实施例可通过图像获取部件判断可烘干物的附着程度，能够通过图像比较准确地识别出遮挡镜头的是否为雨雪等，以便准确判断出开启加热部件3的时机。
或者如图4所示，车辆底盘检查装置还包括温度检测部件3A，被配置为检测图像获取部件4周围区域的温度，加热部件3在温度低于第二预设阈值的情况下开启。该实施例可在检测到低温时自动开启加热部件3，防止雨雪天气发生积雪，此种判断方式简单可靠。
或者也可由控制部件10通过图像识别算法判断图像获取部件4拍摄图像的清晰度，以判断是否工作于雨雪天气，此种方式无需额外增加检测部件，可减小检查装置的体积。
该实施例在判断出图像获取部件4拍摄面对应区域被雨雪等覆盖时，可自动开启加热功能进行融雪并烘干表面水滴，达到除雪除水的目的，保证图像拍摄效果，即使在雨雪天气或检查装置上附着液体情况下，也能提高车辆底盘检查的准确性，从而提高在不同气候、不同地域使用的通用性。
在一些实施例中，如图2和图3所示，本公开的检查装置还包括壳体1和吹气组件6，吹气组件6包括：气源，被配置为提供压缩气体，气源包括外置空气压缩机、内置或外置气缸等；进气口61，设在壳体1上，被配置为引入气源提供的压缩气体；和至少一组吹气口62，设在壳体1上，吹气口62朝向车辆底盘检查装置的待清洁表 面，被配置使引入的压缩气体吹向待清洁表面进行除污。例如，待清洁表面可以是光学器件的镜头、反射面或补光灯的照射面等。
该实施例可检查装置的待清洁表面进行自动清洁，以去除待清洁表面的灰尘或颗粒物，通过有效除污可降低光学器件的误检测率，并避免擦拭的方式在待清洁表面留下划痕。而且，通过自动清洁还能加长检查装置的维护周期，降低维护成本和维护难度，提高设备的使用体验。另外，自动清洁和底盘检查环节可同时进行，在表面清洁时无需停机，可提高设备的使用效率，提升客户对设备的使用体验。
在此基础上，图像获取部件4被配置为获取待清洁表面上的粘污程度，吹气组件6在粘污程度超过第三预设阈值时开启。
该实施例能够在判断出待清洁表面较脏时进行除污，可根据实际脏污程度确定除污时机，防止吹气组件6频繁启动。
或者车速采集部件包括区域激光扫描仪时，区域激光扫描仪可带有自检测功能，被配置为在检测到待清洁表面的粘污程度超过第三预设阈值时发出提示信号。
或者吹气组件6按照预设的时间间隔开启。该实施例能够以一定的时间间隔定期对光学器件除污，无需判断除污时机，控制简单，而且通过定期除污可保证光学器件的清洁性，提高工作可靠性；由于无需设置脏污程度检测功能，因而不受工作环境影响，在恶劣的工作环境中也能可靠地进行除污。时间间隔可根据使用环境的洁净程度设定。
该实施例的检查装置在沙尘气候较多的地区也能正常使用，并且吹气组件6也能辅助清除雨雪，具有较强的环境适应性。在通过吹气组件6吹扫雨雪后，可缩短加热部件3将壳体1表面的雨雪烘干的时间，提高检查装置在雨雪天气的适应性，在户外使用时具有很强的实用性，解决了现有产品雨雪季节不能正常使用的问题。
具体的，吹气组件6还包括电磁阀，用于控制气路的通断。在需要清洁时，控制部件10使电磁阀开启，吹气口62释放高压气体，吹走待清洁表面的浮尘和颗粒物，喷气方式可以是连续或脉冲式的。清理完成后或气源提供的气压低于预设压力时，电磁阀关闭，同时启动空气压缩机进行加压。
在一些实施例中，气源与吹气口62之间的气路上依次设有过滤器和干燥器，以除去外部空气中的水分和杂质，防止气体中携带的杂质冲击到待清洁表面上造成划伤，或者气体中的水分附着在待清洁表面上影响检测或成像，另外还能防止对气路系统中各部件带来损伤。
在一些实施例中，吹气组件6还包括：溢流阀和压力检测部件，溢流阀设在气源下游且溢流压力可调，压力检测部件用于检测气源的供气压力，以便调节溢流阀的溢流压力，实现气路系统的调压功能。这样能够根据粘污程度的不同调整气路压力，以保证有足够的气压除污，同时还能节省压缩气体，并防止气压过大对待清洁表面造成损伤。而且，控制部件10还能在压力检测部件的检测值低于预设压力时开启气源中的空气压缩机，从而保证压缩空气供应充足，可随时开启除污功能。
在一些实施例中，如图2所示，车辆底盘检查装置采用便携式结构，车辆底盘检查装置还包括壳体1和设在壳体1上的反射部件，反射部件包括倾斜的反射面5，用于对车辆底盘成像，图像获取部件4的拍摄面与反射面5相对，包括平行相对和倾斜相对的情况，用于获取反射面5中的车辆底盘成像，以通过反射面5间接获得车辆底盘图像。
如图2所示，壳体1整体大致呈扁平长方体结构，反射部件设在壳体1沿第一方向远离车辆进入的一端，且反射面5朝向车辆进入方向，并沿着第二方向延伸至壳体1边缘。图像获取部件4水平设置，且拍摄面与反射面5相对设置，反射面5从下至上与拍摄面的距离逐渐增大，拍摄方向与反射面之间形成的入射角为锐角，例如45°。图像获取部件4沿第二方向设在壳体1的中间区域，两侧设有安装侧壁，安装侧壁与反射面5底部间隔设置。为了增大图像获取部件4的拍摄区域，图像获取部件4可凸出安装侧壁，并用弧面的第一窗口41覆盖。
便携式检查装置使用灵活方便，此种结构可降低检查装置的整体高度，由于便携式检查装置直接放置于地面上使用，因此可适用于底盘较低车辆的检查需求。可替代地，图像获取部件4的拍摄面也可相对于水平面倾斜设置。
在选型时，可选择尺寸较小的图像获取部件4，在一个具体的实施例中，检查装置的宽度为400mm，高度为75mm，外形紧凑，可对底盘低和轮距窄的车辆进行检查，提高系统的便携性和实用性。
进一步地，此种检查装置还包括：多个补光光源2，例如，LED光源或激光光源等，设在壳体1内，且沿第一方向位于图像获取部件4远离反射面5的一侧，各个补光光源2沿第二方向间隔设置，补光光源2的照射面可朝上设置，被配置为向图像获取部件4提供辅助光源，具体地，可增加车辆底盘和反射面5的亮度，以使图像获取部件4获得清晰的图像。其中，第一方向与车辆通过方向一致，第二方向垂直于第一方向。
进一步地，此种检查装置还包括：第一窗口41，设在壳体1上，被配置为覆盖图像获取部件4的拍摄面；第二窗口21，设在壳体1上，被配置为覆盖补光光源2的照射面；和吹气组件6，吹气组件6包括至少一组吹气口62，吹气口62朝向待清洁表面。其中，待清洁表面包括反射面5、第一窗口41和第二窗口21中的至少一处。该实施例通过自动吹扫图像获取部件4拍摄面和反射面5，并保持补光亮度，可增加图像获取部件4获取图像的清晰程度。
如图2所示，图像获取部件4沿第二方向设在壳体1的中间区域，至少部分组吹气口62位于第一窗口41的安装侧壁沿第二方向的两侧，且朝向反射面5和第一窗口41中的至少一处。此处设置的吹气口62可同时对反射面5和图像获取部件4拍摄面对应的区域进行吹扫。为了吹扫补光光源2，可在壳体1的顶面上设置吹气口62。
仍参考图2，壳体1包括斜坡结构13，斜坡结构13从上至下朝外倾斜，且设在壳体1沿第一方向靠近车辆驶入方向的端部和壳体1沿第二方向的端部中的至少一个位置。车辆在正常行驶通过检查装置时，底盘位于检查装置正上方，两侧轮胎分别位于检查装置的左右两侧，在车辆发生左右偏移时，轮胎可能压着检查装置顶部通过，设置斜坡结构13可防止轮胎与检查装置发生碰撞，提高车辆行驶的平顺性，并提高检查装置的使用寿命。
在一些实施例中，如图3所示，检查装置采用地埋式结构，图像获取部件4设在壳体1内，且拍摄面朝上设置。壳体1的主体部分预埋在地面下，可减小露出地面高度，可满足底盘较低车辆的使用需求；而且，检查装置安装牢固，在检查过程中不会发生位置错动，提高了检查准确性。
如图3所示，此种检查装置还包括：多个补光光源2，设在壳体1内，且并排设在图像获取部件4沿第二方向的两侧，以使两侧补光均衡，补光光源2的照射面朝上，被配置为向图像获取部件4提供辅助光源，以获得更加清晰的图像。
进一步地，此种检查装置还包括：第三窗口42，设在壳体1上，被配置为整体覆盖补光光源2的照射面和图像获取部件4的拍摄面，例如，第三窗口42可以为矩形长条状窗口。吹气组件6，吹气组件6包括至少一组吹气口62，吹气口62设在壳体1顶部，且沿第一方向位于第三窗口42的一侧，吹气口62朝向第三窗口42，吹气口62可水平设置，以使气体沿第三窗口42的切向吹扫。该组吹气口62可同时吹扫图像获取部件4和补光光源2，结构简单。
仍参考图3，壳体1包括：箱体11，箱体11的顶面设有开口，开口处设有安装 法兰；盖板12，设在箱体11顶部的安装法兰上且封闭开口；和斜坡结构13，设在盖板12上，且沿第二方向延伸，斜坡结构13从上至下向外倾斜，即斜坡结构13从下至下朝向远离图像获取部件4的一侧倾斜；其中，第二方向垂直于车辆通过方向。斜坡结构13可设在图像获取部件4沿第一方向的两侧。
具体地，盖板12上设有沿着第一方向相邻或间隔设置的第一安装块81和第二安装块82，图像获取部件4、补光光源2设在箱体11内且上部位于第一安装块81内，第三窗口42设在第一安装块81顶部。第二安装块82的顶部高于第一安装块81，吹气口62设在第二安装块82朝向第一安装块81且高于第一安装块81的侧壁上，以便从吹气口62引出的气流对第三窗口42表面吹扫。例如，第二安装块82沿第一方向位于第一安装块81与车辆驶入端之间。斜坡结构13可设在第一安装块81和第二安装块82相互远离的端部。
在安装时，箱体11和盖板12可整体位于地面以下，只有第一安装块81和第二安装块82位于地面之上，可降低露出高度，在第一安装块81和第二安装块82沿第一方向的尺寸和小于盖板12尺寸时，还可减小检查装置露出部位的面积。
其次，本公开还提供了一种车辆扫描系统，在一些实施例中，包括：射线扫描装置20，被配置为对车辆的携带品例如集装箱等进行扫描，射线扫描装置20包括射线源和设在门架上的探测器，探测器用于接收射线源发出的射线以对车辆携带品进行检查；和上述实施例的检查装置。其中，车辆底盘图像和射线扫描装置20对车辆携带品扫描的图像均与车辆身份信息相关联，例如，车辆身份信息可以是车牌号或者特殊编号。
具体地，检查装置可设在射线扫描装置20门架的正下方的地面上，或者设在未到达门架的地面，也可设在超过门架的地面上。检查装置的壳体1上设有输入输出接口，车速采集部件通过输入输出接口获取射线扫描装置20中检测部件9检测的车辆位置和车速信息。在检测部件9检测到车辆即将到来时，可同时开启检查装置和射线扫描装置20。或者该检查装置也可单独使用。
检查装置至少可采用如下供电方式之一：
其一，检查装置带有插头，可通过与外部插座连接进行供电，此种方式可使检查装置满足长时间使用需求，供电稳定。
其二，检查装置通过射线扫描装置20的电源供电，此种方式可降低设置外部电源的要求，与射线扫描装置20配合使用更灵活。
其三，检查装置采用电池供电，电池容量可根据续航时间需求设计，也可采用更换电池的方式，提高系统的连续工作时间。此种方式可提高检查装置使用的灵活性，在使用便携式检查装置时，可根据需求灵活地将检查装置在不同射线扫描装置20之间转移，无需考虑电源接线问题，使用方便。
而且，检查装置也可同时设置电池供电和外接电源供电，控制部件10被配置为根据检查装置需要持续工作的时间选择供电策略，以便选择合适的供电方式。
在一些实施例中，射线扫描装置20与检查装置中均设有无线数据传输模块8，以进行无线通信。这样射线扫描装置20与检查装置之间无需设置通信线缆，在采用地埋式检查装置时省去了地下布线，在采用便携式检查装置时可防止车辆通过时接触线缆，提高了系统工作的可靠性与安全性。
具体地，控制部件10会向检查装置中的各个图像获取部件和补光光源2发送控制指令，各个图像获取部件向控制部件10上传车辆底盘图像信息。检查装置的控制部件10与射线扫描装置20自身的控制部件可分别设置，或者也可集成设置，直接将检查装置控制部件10嵌设在射线扫描装置20自身的控制部件中，以进一步减小检查装置的体积和重量，提高便携性。
在检查装置采用电池供电，并与射线扫描装置20采用无线通信时，检查装置与射线扫描装置20在物理上形成两个独立的部件，无需任何接线，易于布置和调整检查装置的位置，也能提高系统工作的可靠性和安全性。
可替代地，检查装置采用外接电源供电，或者采用有线网络通信时，如图2所示，壳体1的侧面可设置过线孔7，以使电源线和通信线穿过。如图3所示，进气口61和过线孔7也可设置为一个集成孔7’。
在一些实施例中，本公开的车辆扫描系统还包括车牌识别装置30，以及车型识别装置40和车辆称重装置50中的至少一种，车辆底盘图像与车牌识别装置30获得的车辆身份信息相关联，且车辆底盘图像与车型识别装置40获得的车型信息和车辆称重装置50获得的重量信息中的至少一种相关联。通过在车辆扫描系统中设置多个输入输出接口，就能够使检查装置获得的车辆底盘图像与其它与该车辆相关的信息绑定，使系统功能更加丰富。
最后，本公开提供了一种车辆底盘检查方法，后续简称“检查方法”，在一些实施例中，包括：
步骤101、通过车速采集部件采集车辆的行驶速度信息；和
步骤102、根据采集的行驶速度信息确定图像采集周期，并按照确定的图像采集周期获取图像获取部件4拍摄的车辆底盘图像。
其中，步骤101和102可在底盘检查过程中循环执行，步骤101在102之前执行，步骤102可由控制部件10执行。
此种检查方法能够根据车速调整获取车辆底盘图像的参数，在车辆发生变速时，也能保证车辆底盘图像的清晰度，防止图像出现模糊变形，从而提高车辆底盘检查的准确度和效率。
在第一种实施例中，步骤102中按照图像采集周期获取图像获取部件4拍摄的车辆底盘图像具体包括：
步骤201、根据图像采集周期设定图像获取部件4的拍摄频率；
步骤202、使图像获取部件4按照设定的拍摄频率拍摄车辆底盘图像。
步骤201和202可由控制部件10顺序执行，该实施例通过设定图像获取部件4的拍摄频率可获得清晰不变形的图像，按需获取图像采集帧数，可减小控制部件10的内存占用量，提高处理速度。
进一步地，在步骤201之前，此种检查方法还包括：
步骤203、判断车辆是否到达车辆底盘检查装置，如果未到达，则根据行驶速度信息设定图像获取部件4的初始拍摄频率；如果正在通过，则根据行驶速度信息实时调整图像获取部件4的拍摄频率。
该检查方式能够在车辆通过检查装置之前，提前设定与车速匹配的拍摄频率，可提高车辆在进入检查装置的初始时间段内获取图像的清晰程度，整体获得高质量的底盘图像。
在第二种实施例中，步骤102中按照图像采集周期获取图像获取部件4拍摄的车辆底盘图像具体包括：
步骤301、使图像获取部件4按照车辆以最高行驶速度通过时所需的拍摄频率进行拍摄；
步骤302、对拍摄图像按照图像采集周期抽列，以形成处理后的拍摄图像。
步骤301和302可由控制部件10顺序执行，例如，可采用分批上传数据的方式，在通过步骤301拍摄预设时长的图像之后，再通过步骤302进行抽列处理，可提高数据处理速度。
在第三种实施例中，步骤102中按照图像采集周期获取图像获取部件4拍摄的车 辆底盘图像具体包括：
步骤401、确定图像获取部件4在预设的运动距离内需要采集的帧数；
步骤402、根据车辆在预设的运动距离内需要采集的帧数，确定图像采集周期。
该实施例可以按照距离参数进行外触发的方式获取底盘图像，可降低对图像获取部件4的实时性要求。
上述三种实施例通过引入车辆的行驶速度信息，可保证获得的车辆底盘图像清晰，减小图像畸变。而且，根据检测部件9可判断车辆进入与离开检查装置，以及时开启或关闭图像采集，减小装置耗电量和占用控制部件的内存量。
本领域普通技术人员可以意识到，本公开的控制部件及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现。并且软件模块可以置于任意形式的计算机存储介质中。
以上对本公开所提供的一种车辆底盘检查装置、方法及车辆扫描系统进行了详细介绍。本文中应用了具体的实施例对本公开的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本公开的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开原理的前提下，还可以对本公开进行若干改进和修饰，这些改进和修饰也落入本公开权利要求的保护范围内。

Claims (28)

  1. 一种车辆底盘检查装置，包括：
    车速采集部件，被配置为采集车辆的行驶速度信息；
    图像获取部件(4)，被配置为拍摄车辆底盘图像；和
    控制部件(10)，被配置为根据所述车速采集部件采集的行驶速度信息确定图像采集周期，并按照所述图像采集周期获取所述图像获取部件(4)拍摄的车辆底盘图像。
  2. 根据权利要求1所述的车辆底盘检查装置，其中，
    所述车速采集部件包括检测部件(9)，所述检测部件(9)被配置为检测车辆的位置和行驶速度信息；或者
    所述车速采集部件被配置为从所述车辆底盘检查装置以外的检测部件中采集车辆的位置和行驶速度信息。
  3. 根据权利要求1所述的车辆底盘检查装置，其中所述图像获取部件(4)的拍摄频率根据确定的图像采集周期设定。
  4. 根据权利要求3所述的车辆底盘检查装置，其中所述控制部件(10)被配置为在车辆到达所述车辆底盘检查装置之前，根据所述行驶速度信息设定所述图像获取部件(4)的初始拍摄频率，并在车辆通过所述车辆底盘检查装置的过程中，根据所述行驶速度信息实时调整所述图像获取部件(4)的拍摄频率。
  5. 根据权利要求1所述的车辆底盘检查装置，其中所述控制部件(10)被配置为使所述图像获取部件(4)按照车辆以最高行驶速度通过时所需的拍摄频率进行拍摄，并对拍摄图像按照所述图像采集周期抽列，以形成处理后的拍摄图像。
  6. 根据权利要求1所述的车辆底盘检查装置，其中所述控制部件(10)被配置为根据所述图像获取部件(4)在车辆预设的运动距离内需要采集的帧数，确定所述图像采集周期。
  7. 根据权利要求1～6任一所述的车辆底盘检查装置，还包括加热部件(3)，设在靠近所述图像获取部件(4)的位置，用于实现烘干。
  8. 根据权利要求7所述的车辆底盘检查装置，其中所述图像获取部件(4)被配置为获取自身拍摄面对应区域的可烘干物的附着程度，所述加热部件(3)在可烘干物的附着程度超过第一预设阈值的情况下开启；和/或
    所述车辆底盘检查装置还包括温度检测部件(3A)，被配置为检测所述图像获取部件(4)周围区域的温度，所述加热部件(3)在所述温度低于第二预设阈值的情况下开启。
  9. 根据权利要求1～6任一所述的车辆底盘检查装置，还包括壳体(1)和吹气组件(6)，所述吹气组件(6)包括：
    气源，被配置为提供压缩气体；
    进气口(61)，设在所述壳体(1)上，被配置为引入所述气源提供的压缩气体；和
    至少一组吹气口(62)，设在所述壳体(1)上，所述吹气口(62)朝向所述车辆底盘检查装置的待清洁表面，被配置使引入的压缩气体吹向所述待清洁表面进行除污。
  10. 根据权利要求9所述的车辆底盘检查装置，其中，
    所述图像获取部件(4)被配置为获取所述待清洁表面上的粘污程度，所述吹气组件(6)在所述粘污程度超过第三预设阈值时开启；或者
    所述吹气组件(6)按照预设的时间间隔开启。
  11. 根据权利要求1所述的车辆底盘检查装置，其中所述车辆底盘检查装置采用便携式结构，所述车辆底盘检查装置还包括壳体(1)和设在所述壳体(1)上的反射部件，所述反射部件包括相对于水平面倾斜的反射面(5)，被配置为对车辆底盘成像，所述图像获取部件(4)的拍摄面与所述反射面(5)相对。
  12. 根据权利要求11所述的车辆底盘检查装置，还包括：多个补光光源(2)，设在所述壳体(1)内，且沿第一方向位于所述图像获取部件(4)远离所述反射面(5)的一侧，各个所述补光光源(2)沿第二方向间隔设置，被配置为向所述图像获取部件(4)提供辅助光源；其中，所述第二方向垂直于所述第一方向和所述车辆底盘检查装置的高度方向。
  13. 根据权利要求12所述的车辆底盘检查装置，还包括：
    第一窗口(41)，设在所述壳体(1)上，被配置为覆盖所述图像获取部件(4)的拍摄面；
    第二窗口(21)，设在所述壳体(1)上，被配置为覆盖所述补光光源(2)的照射面；和
    吹气组件(6)，所述吹气组件(6)包括至少一组吹气口(62)，所述吹气口(62) 朝向待清洁表面；
    其中，所述待清洁表面包括所述反射面(5)、所述第一窗口(41)和所述第二窗口(21)中的至少一处。
  14. 根据权利要求13所述的车辆底盘检查装置，其中所述图像获取部件(4)沿所述第二方向设在壳体(1)的中间区域，至少部分组吹气口(62)位于所述第一窗口(41)的安装侧壁沿所述第二方向的两侧，且朝向所述反射面(5)和所述第一窗口(41)中的至少一处。
  15. 根据权利要求11所述的车辆底盘检查装置，其中所述壳体(1)包括斜坡结构(13)，所述斜坡结构(13)从上至下朝外倾斜，且设在所述壳体(1)沿第一方向靠近车辆驶入方向的端部和所述壳体(1)沿第二方向的端部中的至少一个；其中，所述第二方向垂直于所述第一方向和所述车辆底盘检查装置的高度方向。
  16. 根据权利要求1所述的车辆底盘检查装置，其中所述车辆底盘检查装置采用地埋式结构，还包括壳体(1)，所述图像获取部件(4)设在所述壳体(1)内，且拍摄面朝上设置。
  17. 根据权利要求16所述的车辆底盘检查装置，还包括：多个补光光源(2)，设在所述壳体(1)内，且并排设在所述图像获取部件(4)沿第二方向的两侧，被配置为向所述图像获取部件(4)提供辅助光源；其中，所述第二方向垂直于第一方向和所述车辆底盘检查装置的高度方向。
  18. 根据权利要求17所述的车辆底盘检查装置，还包括：
    第三窗口(42)，设在所述壳体(1)上，被配置为整体覆盖所述补光光源(2)的照射面和所述图像获取部件(4)的拍摄面；和
    吹气组件(6)，所述吹气组件(6)包括至少一组吹气口(62)，所述吹气口(62)设在所述壳体(1)顶部，且沿所述第一方向位于所述第三窗口(42)的一侧，所述吹气口(62)朝向所述第三窗口(42)。
  19. 根据权利要求16所述的车辆底盘检查装置，其中所述壳体(1)包括：
    箱体(11)，所述箱体(11)的顶面设有开口；
    盖板(12)，设在所述箱体(11)顶部且封闭所述开口；和
    斜坡结构(13)，设在所述盖板(12)上，且沿第二方向延伸，所述斜坡结构(13)从上至下向外倾斜；其中，所述第二方向垂直于第一方向和所述车辆底盘检查装置的高度方向。
  20. 一种车辆扫描系统，包括：
    射线扫描装置(20)，被配置为对车辆携带品进行扫描；和
    权利要求1～19任一所述的车辆底盘检查装置；
    其中，车辆底盘图像和所述射线扫描装置(20)对车辆携带品扫描的图像均与车辆身份信息相关联。
  21. 根据权利要求20所述的车辆扫描系统，其中所述车辆底盘检查装置采用电池供电。
  22. 根据权利要求20所述的车辆扫描系统，其中所述射线扫描装置(20)与所述车辆底盘检查装置采用无线通信。
  23. 根据权利要求20所述的车辆扫描系统，还包括车牌识别装置(30)，以及车型识别装置(40)和车辆称重装置(50)中的至少一种，所述车辆底盘图像与所述车牌识别装置(30)获得的车辆身份信息相关联，且所述车辆底盘图像与所述车型识别装置(40)获得的车型信息和所述车辆称重装置(50)获得的重量信息中的至少一种相关联。
  24. 一种车辆底盘检查方法，包括：
    通过车速采集部件采集车辆的行驶速度信息；和
    根据采集的行驶速度信息确定图像采集周期，并按照所述图像采集周期获取所述图像获取部件(4)拍摄的车辆底盘图像。
  25. 根据权利要求24所述的车辆底盘检查方法，其中按照所述图像采集周期获取所述图像获取部件(4)拍摄的车辆底盘图像的步骤包括：
    根据所述图像采集周期设定所述图像获取部件(4)的拍摄频率；
    使所述图像获取部件(4)按照设定的拍摄频率拍摄车辆底盘图像。
  26. 根据权利要求25所述的车辆底盘检查方法，其中在根据所述图像采集周期设定所述图像获取部件(4)的拍摄频率的步骤之前，所述车辆底盘检查方法还包括：
    判断车辆是否到达所述车辆底盘检查装置，如果未到达，则根据行驶速度信息设定所述图像获取部件(4)的初始拍摄频率；如果正在通过，则根据行驶速度信息实时调整所述图像获取部件(4)的拍摄频率。
  27. 根据权利要求24所述的车辆底盘检查方法，其中按照所述图像采集周期获取所述图像获取部件(4)拍摄的车辆底盘图像的步骤包括：
    使所述图像获取部件(4)按照车辆以最高行驶速度通过时所需的拍摄频率进行 拍摄；
    对拍摄图像按照所述图像采集周期抽列，以形成处理后的拍摄图像。
  28. 根据权利要求24所述的车辆底盘检查方法，其中按照所述图像采集周期获取所述图像获取部件(4)拍摄的车辆底盘图像的步骤包括：
    确定所述图像获取部件(4)在预设的运动距离内需要采集的帧数；
    根据车辆在预设的运动距离内需要采集的帧数，确定所述图像采集周期。
PCT/CN2020/073890 2019-05-10 2020-01-22 车辆底盘检查装置、方法及车辆扫描系统 Ceased WO2020228381A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910387643.9A CN110031911B (zh) 2019-05-10 2019-05-10 车辆底盘检查装置、方法及车辆扫描系统
CN201910387643.9 2019-05-10

Publications (1)

Publication Number Publication Date
WO2020228381A1 true WO2020228381A1 (zh) 2020-11-19

Family

ID=67241726

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/073890 Ceased WO2020228381A1 (zh) 2019-05-10 2020-01-22 车辆底盘检查装置、方法及车辆扫描系统

Country Status (2)

Country Link
CN (1) CN110031911B (zh)
WO (1) WO2020228381A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115235549A (zh) * 2022-08-10 2022-10-25 杭州悦马爱赏科技股份有限公司 一种车辆及携乘人员的安全检查系统
CN116482124A (zh) * 2023-06-25 2023-07-25 广州标动轨道装备有限公司 一种高铁车下探测检查仪
CN117877278A (zh) * 2023-12-22 2024-04-12 同方威视技术股份有限公司 车辆底盘检查装置和检查方法
CN119960078A (zh) * 2025-03-14 2025-05-09 上海船舶运输科学研究所有限公司 一种新能源汽车底盘非接触红外测温安检系统及方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110031911B (zh) * 2019-05-10 2024-12-13 同方威视技术股份有限公司 车辆底盘检查装置、方法及车辆扫描系统
CN110602466A (zh) * 2019-10-29 2019-12-20 同方威视科技江苏有限公司 车辆监控方法、系统、装置、电子设备及存储介质
CN111352123B (zh) * 2019-10-30 2020-09-11 清华大学 用于车辆检查的机器人和方法、确定车辆底盘中线的方法
CN110596776B (zh) * 2019-10-31 2020-10-27 威马汽车科技集团有限公司 一种汽车底盘安检检测装置
CN112345270A (zh) * 2020-11-09 2021-02-09 深圳市二郎神视觉科技有限公司 一种汽车底盘扫描装置、方法及计算机可读存储介质
CN116668833A (zh) * 2023-06-02 2023-08-29 清华大学 一种基于主动感知的车载相机帧率调节方法及装置
CN117799577B (zh) * 2024-03-01 2024-04-30 江阴帕沃特起重机械有限公司 一种基于光储充换的电动重卡自动充换电站及系统
CN121037657A (zh) * 2024-05-27 2025-11-28 宁德时代新能源科技股份有限公司 底盘扫描装置及底盘图像获取控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102981186A (zh) * 2012-12-22 2013-03-20 张森 一种便携式车辆底盘图像信息采集装置
CN108460351A (zh) * 2018-02-28 2018-08-28 北京航星机器制造有限公司 一种便携式车底扫查系统及使用方法
US20180293817A1 (en) * 2017-04-07 2018-10-11 Hunter Engineering Company Vehicle Inspection System and Method For Evaluating Vehicle Inspection and Service Information
CN110031911A (zh) * 2019-05-10 2019-07-19 同方威视技术股份有限公司 车辆底盘检查装置、方法及车辆扫描系统

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3807331B2 (ja) * 2002-03-06 2006-08-09 日産自動車株式会社 カメラの汚れ検出装置およびカメラの汚れ検出方法
JP4529768B2 (ja) * 2005-04-05 2010-08-25 日産自動車株式会社 車載物体検出装置、および物体検出方法
KR100692605B1 (ko) * 2005-09-27 2007-03-13 주식회사 제온이앤에스 차량 검문시스템 및 이를 이용한 차량 검문방법
JP2009107400A (ja) * 2007-10-26 2009-05-21 Victor Co Of Japan Ltd 車両用映像表示方法および車両用映像表示装置
US20100238290A1 (en) * 2008-08-27 2010-09-23 Kachemak Research Development, Inc. Drive over vehicle inspection systems and methods
KR101525552B1 (ko) * 2013-03-22 2015-06-10 (주)한성레이저 차량 하부 검색장치
KR101372832B1 (ko) * 2013-12-18 2014-03-11 주식회사 디앤에스테크놀로지 이동식 차량 하부 검색 시스템 및 방법
DE102014104029B3 (de) * 2014-03-24 2015-04-23 Sick Ag Optoelektronische Vorrichtung und Verfahren zur Aufnahme von scharfen Bildern
CN105438756B (zh) * 2014-08-22 2019-03-29 清华大学 一种小型车辆检查系统
US9539988B2 (en) * 2015-03-16 2017-01-10 Thunder Power Hong Kong Ltd. Vehicle camera cleaning system
DE102016112161A1 (de) * 2016-07-04 2018-01-04 Connaught Electronics Ltd. Verfahren zum Entfernen von Ablagerungen auf einer Linse einer Kamera eines Kraftfahrzeugs unter Berücksichtigung einer Temperatur der Linse, Reinigungsvorrichtung, Kameraanordnung sowie Kraftfahrzeug
CN206960681U (zh) * 2017-05-09 2018-02-02 杭州海康机器人技术有限公司 一种车辆底盘图像检测装置
CN108881704A (zh) * 2017-05-09 2018-11-23 杭州海康机器人技术有限公司 一种车辆底盘图像获取系统及图像获取控制方法
CN107491760B (zh) * 2017-08-22 2018-05-18 梁丽珠 危险车辆即时检测系统
CN107792019A (zh) * 2017-09-27 2018-03-13 北京图森未来科技有限公司 一种摄像头清洁方法及系统
CN208255438U (zh) * 2018-06-07 2018-12-18 新疆博微太赫兹信息科技有限公司 车辆底盘扫描装置
CN108622037A (zh) * 2018-06-15 2018-10-09 漳州市玉山电子制造有限公司 一种车辆底盘检查系统
CN109283592B (zh) * 2018-11-26 2021-02-09 河北工业大学 车辆底盘检测系统和车辆底盘检测方法
CN209821410U (zh) * 2019-05-10 2019-12-20 同方威视技术股份有限公司 车辆底盘检查装置及车辆扫描系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102981186A (zh) * 2012-12-22 2013-03-20 张森 一种便携式车辆底盘图像信息采集装置
US20180293817A1 (en) * 2017-04-07 2018-10-11 Hunter Engineering Company Vehicle Inspection System and Method For Evaluating Vehicle Inspection and Service Information
CN108460351A (zh) * 2018-02-28 2018-08-28 北京航星机器制造有限公司 一种便携式车底扫查系统及使用方法
CN110031911A (zh) * 2019-05-10 2019-07-19 同方威视技术股份有限公司 车辆底盘检查装置、方法及车辆扫描系统

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115235549A (zh) * 2022-08-10 2022-10-25 杭州悦马爱赏科技股份有限公司 一种车辆及携乘人员的安全检查系统
CN116482124A (zh) * 2023-06-25 2023-07-25 广州标动轨道装备有限公司 一种高铁车下探测检查仪
CN116482124B (zh) * 2023-06-25 2023-09-01 广州标动轨道装备有限公司 一种高铁车下探测检查仪
CN117877278A (zh) * 2023-12-22 2024-04-12 同方威视技术股份有限公司 车辆底盘检查装置和检查方法
CN119960078A (zh) * 2025-03-14 2025-05-09 上海船舶运输科学研究所有限公司 一种新能源汽车底盘非接触红外测温安检系统及方法

Also Published As

Publication number Publication date
CN110031911B (zh) 2024-12-13
CN110031911A (zh) 2019-07-19

Similar Documents

Publication Publication Date Title
CN110031911B (zh) 车辆底盘检查装置、方法及车辆扫描系统
US10007981B2 (en) Automated radial imaging and analysis system
ES2647738T3 (es) Dispositivo, sistema y método para punto de control de entrada
CN202947884U (zh) 一种动车组运行故障动态图像检测系统
US20100238290A1 (en) Drive over vehicle inspection systems and methods
KR101688695B1 (ko) 차량번호 인식 장치 및 그 방법, 그리고 상기 방법을 수행하는 프로그램을 기록한 컴퓨터 판독 가능한 기록 매체
CN109274866A (zh) 一种用于智慧交通的电子警察
CN114047197A (zh) 基于机器视觉的线缆表面缺陷检测用装置及操作方法
KR101625573B1 (ko) 차량 번호판 인식과 차량 하부 검색을 동시에 이용한 입출차 보안 시스템
CN209821410U (zh) 车辆底盘检查装置及车辆扫描系统
CN115205278B (zh) 一种电动汽车底盘划痕检测方法和系统
EP1560159A2 (en) Method and apparatus for detecting contaminants on a window surface of a viewing utilizing light
CN117877278A (zh) 车辆底盘检查装置和检查方法
KR101676444B1 (ko) 노측 설치식 다차로 구간 정보 수집 장치 및 방법
CN205844212U (zh) 一种液晶玻璃表面异物的检测设备
KR101626765B1 (ko) 다방면 촬영이 가능한 차량용 방범 촬영시스템
CN111524360A (zh) 埋入式车牌辨识筛选系统及其控制方法
CN106053484A (zh) 一种液晶玻璃表面异物的检测设备及其检测方法
KR101747919B1 (ko) 차량의 번호판 인식 장치
CN208953442U (zh) 一种垂直式机动车尾气不透光度监测装置
CN112070912A (zh) 集验票与身份核对于一体的检票闸机
CN219777963U (zh) 一种车底多相机全向监控与扫描成像检查装置
CN113740302B (zh) 溢油监测装置及监测方法
CN110675638A (zh) 一种车位检测机构、系统及检测方法
CN214278453U (zh) 一种车底检测设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20806686

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20806686

Country of ref document: EP

Kind code of ref document: A1