CN111002890A - Large truck - Google Patents

Large truck Download PDF

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Publication number
CN111002890A
CN111002890A CN201911079125.7A CN201911079125A CN111002890A CN 111002890 A CN111002890 A CN 111002890A CN 201911079125 A CN201911079125 A CN 201911079125A CN 111002890 A CN111002890 A CN 111002890A
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image
unit
threshold
receiving
contrast
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CN201911079125.7A
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Chinese (zh)
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陈嘉琴
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Individual
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Individual
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Priority to CN201911079125.7A priority Critical patent/CN111002890A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/43—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle
    • B60P1/435—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle the ramp being attached to or making part of the side- or tailboards of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/04—Enclosed load compartments ; Frameworks for movable panels, tarpaulins or side curtains
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/136—Segmentation; Edge detection involving thresholding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • H04N23/67—Focus control based on electronic image sensor signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/10—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used
    • B60R2300/105—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of camera system used using multiple cameras
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/802—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring and displaying vehicle exterior blind spot views
    • B60R2300/8026—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for monitoring and displaying vehicle exterior blind spot views in addition to a rear-view mirror system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20004—Adaptive image processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20021—Dividing image into blocks, subimages or windows
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20212—Image combination
    • G06T2207/20224—Image subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30248—Vehicle exterior or interior
    • G06T2207/30252—Vehicle exterior; Vicinity of vehicle

Abstract

The invention provides a large truck comprising: the truck comprises a vehicle head and a truck carriage, wherein a discharge port is arranged at the side end of the truck carriage, and a turnover cargo door is hinged to the discharge port; and the top of the truck compartment is provided with a solar panel. The cargo door of the large truck is hinged on the cargo unloading opening in a turnover mode, when unloading or loading is needed, the cargo door is turned over and falls onto the ground, and cargoes can directly slide to the ground through the cargo door during unloading; when loading goods, the goods can be pushed into the carriage by virtue of the inclined goods door, so that the whole structure is simple and the use is convenient; the top of the carriage is provided with a solar panel which can supply power to some power utilization units in the truck.

Description

Large truck
Technical Field
The invention relates to an automobile, in particular to a large truck.
Background
Trucks, also called trucks, commonly referred to as vans, refer to vehicles primarily intended for transporting goods, and sometimes also to vehicles that may tow other vehicles, and belong to the category of commercial vehicles. Generally, the vehicle can be classified into a heavy type and a light type according to the weight of the vehicle. Most trucks use a diesel engine as a power source, but some light trucks use gasoline, petroleum gas, or natural gas. Trucks include dump trucks, haul trucks, off-highway and off-road trucks in off-highway areas, and various trucks that are specifically manufactured for special needs (e.g., airport ferries, fire and ambulance trucks, tank trucks, container haul trucks, etc.). The unloading door of the existing trucks is generally arranged at the rear end, so that the unloading is inconvenient.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a large truck which is simple in structure and is provided with a cargo door capable of turning downwards and hinged to a cargo unloading opening.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a large truck, including: the truck comprises a vehicle head and a truck carriage, wherein a discharge port is arranged at the side end of the truck carriage, and a turnover cargo door is hinged to the discharge port; and the top of the truck compartment is provided with a solar panel. The goods door of the large truck is hinged on the goods unloading opening in a turnover mode, when unloading or loading is needed, the goods door is turned over and falls onto the ground, and the goods can directly slide to the ground through the goods door during unloading; when loading goods, the goods can be pushed into the carriage by virtue of the inclined goods door, so that the whole structure is simple and the use is convenient; the top of the carriage is provided with a solar panel which can supply power to some power utilization units in the truck.
The truck belongs to a larger automobile, and the blind area of the large truck is much more than that of the common family sedan because the structure of the truck body is special. Generally, the main sight range in the cab of a large truck is the area with the included angle of 200 degrees at the two sides in front and the visible range of about 60 degrees at the side and the rear provided by three rearview mirrors on the truck, and the volume of the rear compartment of some large trucks is large, so that the rear condition of the indoor rearview mirrors cannot be seen completely, the indoor rearview mirrors can only be observed by the rearview mirrors at the two sides, the number of visual blind areas of the truck is large, and particularly, the indoor rearview mirrors are easy to rub against vehicles or pedestrians at the sides in the steering process, even serious traffic accidents can be caused, and people die. And this technical scheme's large truck possesses side car distance and detects warning mechanism, and its factor of safety improves greatly. The large truck includes:
the side cameras are arranged on two sides of the truck compartment and used for horizontally shooting images of the side environment of the truck to obtain and output instant side images;
the self-adaptive processing unit is connected with the side camera and used for receiving the instant side image output by the side camera, measuring the contrast of the instant side image to obtain corresponding real-time contrast, and uniformly partitioning the instant side image based on the real-time contrast to obtain a plurality of corresponding sub-images;
a driving control unit connected to the adaptive processing unit, for receiving the plurality of sub-images and performing the following processing for each sub-image: acquiring brightness component values of all pixel points of the subimages, adding the brightness component values of all pixel points of the subimages, taking the added result as the brightness parameters of the subimages, sending a zooming driving signal when all the brightness parameters of all the subimages fall within a preset parameter threshold range, and sending a driving ending signal when the brightness parameters in all the brightness parameters of all the subimages fall outside the preset parameter threshold range; the preset parameter threshold range consists of a preset parameter upper threshold and a preset parameter lower threshold, and the preset parameter upper threshold is smaller than the preset parameter lower threshold;
the integral analysis unit is connected with the side camera and used for receiving the instant side image and determining an integral segmentation threshold corresponding to the instant side image based on the distribution condition of pixel values of all pixel points in the instant side image;
the contrast analysis unit is used for receiving the instant lateral image and carrying out contrast analysis on the instant lateral image so as to obtain and output a corresponding contrast;
the self-adaptive processing unit is connected with the contrast analysis unit and used for receiving the contrast and carrying out image segmentation processing on the instant lateral image based on the contrast so as to obtain a plurality of sub-images, wherein the higher the contrast is, the more the number of the obtained sub-images is;
the area analysis unit is connected with the self-adaptive processing unit and used for receiving the plurality of sub-images, determining area division thresholds corresponding to the sub-images based on the distribution condition of pixel values of all pixel points in each sub-image and outputting all area division thresholds corresponding to all the sub-images;
the region correction unit is respectively connected with the region analysis unit and the whole analysis unit and is used for receiving the whole segmentation threshold and each region segmentation threshold, carrying out numerical value adjustment on each region segmentation threshold based on the whole segmentation threshold, and obtaining the adjusted region segmentation threshold to be used as a region adjustment threshold to be output;
the partitioning and dividing unit is connected with the area correcting unit and is used for partitioning each sub-image by adopting a corresponding area adjusting threshold value so as to obtain a corresponding target sub-image, and combining all the target sub-images so as to obtain and output a target image to be processed;
the self-adaptive high-frequency analysis unit is connected with the block segmentation unit and used for receiving the target image to be processed, carrying out contrast measurement on the target image to be processed so as to obtain real-time contrast corresponding to the target image to be processed, and determining a corresponding high-frequency distribution frequency band in the target image to be processed based on the real-time contrast so as to output the high-frequency distribution frequency band as a target frequency band;
the image differentiation unit is respectively connected with the frequency band extraction unit and the contrast measurement unit and is used for receiving the target frequency band and the target image to be processed, executing high-pass filtering processing based on the target frequency band on the target image to be processed so as to obtain a corresponding high-pass filtering image and outputting the high-pass filtering image;
a difference value obtaining unit, connected to the image differentiation unit, for obtaining the target image to be processed and the high-pass filtered image, and further for subtracting the high-pass filtered image from the target image to be processed pixel by pixel to obtain a corresponding difference value processed image, and outputting the difference value processed image;
the targeted processing unit is respectively connected with the difference value acquisition unit and the image differentiation unit, and is used for receiving the high-pass filtering image and the difference value processing image, performing feature enhancement processing on the high-pass filtering image to obtain and output a corresponding feature enhanced image, and adding the feature enhanced image and the difference value processing image pixel by pixel to obtain a corresponding reconstructed image and outputting the reconstructed image;
the detection alarm mechanism is connected with the targeted processing unit and used for receiving the reconstructed image, measuring each depth of field of each automobile target in the reconstructed image, taking the nearest depth of field in each depth of field as an alarm parameter, sending out vehicle over-close information when the alarm parameter is less than a limit amount, and sending out vehicle distance normal information when the alarm parameter is greater than or equal to the limit amount;
and the central control display screen is arranged in the vehicle head, is respectively connected with the detection alarm mechanism and the side camera, and is used for receiving and displaying the instant lateral image when receiving the vehicle passing-by information.
Further, the side camera comprises an optical lens and a zooming motor, and the optical lens is positioned on an imaging light path of the side camera; the zooming motor is respectively connected with the optical lens and the driving control unit and used for realizing the movement control of the optical lens when receiving the zooming driving signal so as to correspondingly change the imaging focal length of the side camera.
Further, the zoom motor is further configured to interrupt the movement control of the optical lens when receiving the driving end signal, so as to keep the imaging focal length of the side camera unchanged.
Further, in the region modification unit, performing numerical adjustment on each region division threshold value based on the overall division threshold value includes: and adjusting the value of the region segmentation threshold value based on the difference value from the integral segmentation threshold value to each region segmentation threshold value.
Further, in the region modification unit, the numerically adjusting the region division threshold value based on the difference value between the overall division threshold value and each region division threshold value includes: the adjusted region segmentation threshold is the sum of the region segmentation threshold and one fourth of the difference.
Further, the central control display screen is further used for stopping receiving and displaying the instant lateral image when the normal distance information is received.
(III) advantageous effects
The cargo door of the large truck is hinged on the cargo unloading opening in a turnover mode, when unloading or loading is needed, the cargo door is turned over and falls onto the ground, and cargoes can directly slide to the ground through the cargo door during unloading; when loading goods, the goods can be pushed into the carriage by virtue of the inclined goods door, so that the whole structure is simple and the use is convenient; the top of the carriage is provided with a solar panel which can supply power to some power utilization units in the truck.
Drawings
FIG. 1 is a schematic view of the construction of a large truck according to the present invention;
wherein: 1 is a vehicle head, 2 is a truck carriage, 3 is a discharge port, 4 is a cargo door, and 5 is a solar panel.
Detailed Description
Referring to fig. 1, the present invention provides a large truck comprising: the device comprises a vehicle head 1 and a truck carriage 2, wherein a discharge port 3 is arranged at the side end of the truck carriage 2, and a turnover cargo door 4 is hinged on the discharge port 3; the top of the truck bed 2 is provided with a solar panel 5. The goods door of the large truck is hinged on the goods unloading opening in a turnover mode, when unloading or loading is needed, the goods door is turned over and falls onto the ground, and the goods can directly slide to the ground through the goods door during unloading; when loading goods, the goods can be pushed into the carriage by virtue of the inclined goods door, so that the whole structure is simple and the use is convenient; the top of the carriage is provided with a solar panel which can supply power to some power utilization units in the truck.
The truck belongs to a larger automobile, and the blind area of the large truck is much more than that of the common family sedan because the structure of the truck body is special. Generally, the main sight range in the cab of a large truck is the area with the included angle of 200 degrees at the two sides in front and the visible range of about 60 degrees at the side and the rear provided by three rearview mirrors on the truck, and the volume of the rear compartment of some large trucks is large, so that the rear condition of the indoor rearview mirrors cannot be seen completely, the indoor rearview mirrors can only be observed by the rearview mirrors at the two sides, the number of visual blind areas of the truck is large, and particularly, the indoor rearview mirrors are easy to rub against vehicles or pedestrians at the sides in the steering process, even serious traffic accidents can be caused, and people die. And this technical scheme's large truck possesses side car distance and detects warning mechanism, and its factor of safety improves greatly. The large truck includes:
the side cameras are arranged on two sides of the truck compartment 2 and used for horizontally shooting images of the side environment of the truck to obtain and output instant side images;
the self-adaptive processing unit is connected with the side camera and used for receiving the instant side image output by the side camera, measuring the contrast of the instant side image to obtain corresponding real-time contrast, and uniformly partitioning the instant side image based on the real-time contrast to obtain a plurality of corresponding sub-images;
a driving control unit connected to the adaptive processing unit, for receiving the plurality of sub-images and performing the following processing for each sub-image: acquiring brightness component values of all pixel points of the subimages, adding the brightness component values of all pixel points of the subimages, taking the added result as the brightness parameters of the subimages, sending a zooming driving signal when all the brightness parameters of all the subimages fall within a preset parameter threshold range, and sending a driving ending signal when the brightness parameters in all the brightness parameters of all the subimages fall outside the preset parameter threshold range; the preset parameter threshold range consists of a preset parameter upper threshold and a preset parameter lower threshold, and the preset parameter upper threshold is smaller than the preset parameter lower threshold;
the integral analysis unit is connected with the side camera and used for receiving the instant side image and determining an integral segmentation threshold corresponding to the instant side image based on the distribution condition of pixel values of all pixel points in the instant side image;
the contrast analysis unit is used for receiving the instant lateral image and carrying out contrast analysis on the instant lateral image so as to obtain and output a corresponding contrast;
the self-adaptive processing unit is connected with the contrast analysis unit and used for receiving the contrast and carrying out image segmentation processing on the instant lateral image based on the contrast so as to obtain a plurality of sub-images, wherein the higher the contrast is, the more the number of the obtained sub-images is;
the area analysis unit is connected with the self-adaptive processing unit and used for receiving the plurality of sub-images, determining area division thresholds corresponding to the sub-images based on the distribution condition of pixel values of all pixel points in each sub-image and outputting all area division thresholds corresponding to all the sub-images;
the region correction unit is respectively connected with the region analysis unit and the whole analysis unit and is used for receiving the whole segmentation threshold and each region segmentation threshold, carrying out numerical value adjustment on each region segmentation threshold based on the whole segmentation threshold, and obtaining the adjusted region segmentation threshold to be used as a region adjustment threshold to be output;
the partitioning and dividing unit is connected with the area correcting unit and is used for partitioning each sub-image by adopting a corresponding area adjusting threshold value so as to obtain a corresponding target sub-image, and combining all the target sub-images so as to obtain and output a target image to be processed;
the self-adaptive high-frequency analysis unit is connected with the block segmentation unit and used for receiving the target image to be processed, carrying out contrast measurement on the target image to be processed so as to obtain real-time contrast corresponding to the target image to be processed, and determining a corresponding high-frequency distribution frequency band in the target image to be processed based on the real-time contrast so as to output the high-frequency distribution frequency band as a target frequency band;
the image differentiation unit is respectively connected with the frequency band extraction unit and the contrast measurement unit and is used for receiving the target frequency band and the target image to be processed, executing high-pass filtering processing based on the target frequency band on the target image to be processed so as to obtain a corresponding high-pass filtering image and outputting the high-pass filtering image;
a difference value obtaining unit, connected to the image differentiation unit, for obtaining the target image to be processed and the high-pass filtered image, and further for subtracting the high-pass filtered image from the target image to be processed pixel by pixel to obtain a corresponding difference value processed image, and outputting the difference value processed image;
the targeted processing unit is respectively connected with the difference value acquisition unit and the image differentiation unit, and is used for receiving the high-pass filtering image and the difference value processing image, performing feature enhancement processing on the high-pass filtering image to obtain and output a corresponding feature enhanced image, and adding the feature enhanced image and the difference value processing image pixel by pixel to obtain a corresponding reconstructed image and outputting the reconstructed image;
the detection alarm mechanism is connected with the targeted processing unit and used for receiving the reconstructed image, measuring each depth of field of each automobile target in the reconstructed image, taking the nearest depth of field in each depth of field as an alarm parameter, sending out vehicle over-close information when the alarm parameter is less than a limit amount, and sending out vehicle distance normal information when the alarm parameter is greater than or equal to the limit amount;
and the central control display screen is arranged in the locomotive 1, is respectively connected with the detection alarm mechanism and the side camera, and is used for receiving and displaying the instant lateral image when receiving the vehicle passing-by information.
The side camera comprises an optical lens and a zooming motor, and the optical lens is positioned on an imaging light path of the side camera; the zooming motor is respectively connected with the optical lens and the driving control unit and used for realizing the movement control of the optical lens when receiving the zooming driving signal so as to correspondingly change the imaging focal length of the side camera.
The zoom motor is further used for interrupting the movement control of the optical lens when the driving end signal is received so as to keep the imaging focal length of the side camera unchanged.
In the region correction unit, numerically adjusting each region division threshold value based on the overall division threshold value includes: and adjusting the value of the region segmentation threshold value based on the difference value from the integral segmentation threshold value to each region segmentation threshold value. In the region correction unit, the numerically adjusting the region division threshold value based on the magnitude of the difference from the overall division threshold value to each region division threshold value includes: the adjusted region segmentation threshold is the sum of the region segmentation threshold and one fourth of the difference.
And the central control display screen is also used for stopping receiving and displaying the instant lateral image when the normal distance information is received.
In addition, in the instant headway check alarm system, the targeted processing unit is implemented by a gal (genericarray logic) device.
The large truck has a side distance detection alarm function, and aims at the technical problem of insufficient self-protection capability of automobiles in the prior art, the depth of field of each automobile target in an image from the side of the automobile is measured, and the nearest depth of field in each depth of field is used as an alarm parameter, so that when the side distance is too close, a driver is reminded to pay attention to the side; determining a driving signal of a zooming motor of the side camera through contrast analysis and brightness analysis of an imaging result of the side camera so as to realize automatic zooming processing of the side camera; a self-adaptive image sharpening processing mode is adopted, so that the image sharpening effect is ensured; an adaptive adjustment mode for adjusting the block threshold based on the integral threshold is established, so that the target detection gives consideration to the integral characteristics and the characteristics, and the effectiveness of the target image to be processed for subsequent image processing is ensured, thereby solving the technical problems.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A large truck, comprising: the truck comprises a vehicle head (1) and a truck carriage (2), wherein a discharge port (3) is arranged at the side end of the truck carriage (2), and a turnover cargo door (4) is hinged to the discharge port (3); the top of the truck carriage (2) is provided with a solar panel (5).
2. The large truck according to claim 1, further comprising:
the side cameras are arranged on two sides of the truck compartment (2) and used for horizontally shooting images of the side environment of the truck to obtain and output instant side images;
the self-adaptive processing unit is connected with the side camera and used for receiving the instant side image output by the side camera, measuring the contrast of the instant side image to obtain corresponding real-time contrast, and uniformly partitioning the instant side image based on the real-time contrast to obtain a plurality of corresponding sub-images;
a driving control unit connected to the adaptive processing unit, for receiving the plurality of sub-images and performing the following processing for each sub-image: acquiring brightness component values of all pixel points of the subimages, adding the brightness component values of all pixel points of the subimages, taking the added result as the brightness parameters of the subimages, sending a zooming driving signal when all the brightness parameters of all the subimages fall within a preset parameter threshold range, and sending a driving ending signal when the brightness parameters in all the brightness parameters of all the subimages fall outside the preset parameter threshold range; the preset parameter threshold range consists of a preset parameter upper threshold and a preset parameter lower threshold, and the preset parameter upper threshold is smaller than the preset parameter lower threshold;
the integral analysis unit is connected with the side camera and used for receiving the instant side image and determining an integral segmentation threshold corresponding to the instant side image based on the distribution condition of pixel values of all pixel points in the instant side image;
the contrast analysis unit is used for receiving the instant lateral image and carrying out contrast analysis on the instant lateral image so as to obtain and output a corresponding contrast;
the self-adaptive processing unit is connected with the contrast analysis unit and used for receiving the contrast and carrying out image segmentation processing on the instant lateral image based on the contrast so as to obtain a plurality of sub-images, wherein the higher the contrast is, the more the number of the obtained sub-images is;
the area analysis unit is connected with the self-adaptive processing unit and used for receiving the plurality of sub-images, determining area division thresholds corresponding to the sub-images based on the distribution condition of pixel values of all pixel points in each sub-image and outputting all area division thresholds corresponding to all the sub-images;
the region correction unit is respectively connected with the region analysis unit and the whole analysis unit and is used for receiving the whole segmentation threshold and each region segmentation threshold, carrying out numerical value adjustment on each region segmentation threshold based on the whole segmentation threshold, and obtaining the adjusted region segmentation threshold to be used as a region adjustment threshold to be output;
the partitioning and dividing unit is connected with the area correcting unit and is used for partitioning each sub-image by adopting a corresponding area adjusting threshold value so as to obtain a corresponding target sub-image, and combining all the target sub-images so as to obtain and output a target image to be processed;
the self-adaptive high-frequency analysis unit is connected with the block segmentation unit and used for receiving the target image to be processed, carrying out contrast measurement on the target image to be processed so as to obtain real-time contrast corresponding to the target image to be processed, and determining a corresponding high-frequency distribution frequency band in the target image to be processed based on the real-time contrast so as to output the high-frequency distribution frequency band as a target frequency band;
the image differentiation unit is respectively connected with the frequency band extraction unit and the contrast measurement unit and is used for receiving the target frequency band and the target image to be processed, executing high-pass filtering processing based on the target frequency band on the target image to be processed so as to obtain a corresponding high-pass filtering image and outputting the high-pass filtering image;
a difference value obtaining unit, connected to the image differentiation unit, for obtaining the target image to be processed and the high-pass filtered image, and further for subtracting the high-pass filtered image from the target image to be processed pixel by pixel to obtain a corresponding difference value processed image, and outputting the difference value processed image;
the targeted processing unit is respectively connected with the difference value acquisition unit and the image differentiation unit, and is used for receiving the high-pass filtering image and the difference value processing image, performing feature enhancement processing on the high-pass filtering image to obtain and output a corresponding feature enhanced image, and adding the feature enhanced image and the difference value processing image pixel by pixel to obtain a corresponding reconstructed image and outputting the reconstructed image;
the detection alarm mechanism is connected with the targeted processing unit and used for receiving the reconstructed image, measuring each depth of field of each automobile target in the reconstructed image, taking the nearest depth of field in each depth of field as an alarm parameter, sending out vehicle over-close information when the alarm parameter is less than a limit amount, and sending out vehicle distance normal information when the alarm parameter is greater than or equal to the limit amount;
and the central control display screen is arranged in the vehicle head (1), is respectively connected with the detection alarm mechanism and the side camera, and is used for receiving and displaying the instant lateral image when receiving the vehicle passing-by information.
3. The large truck according to claim 2, wherein the side camera includes therein an optical lens and a zoom motor, the optical lens being located on an imaging optical path of the side camera; the zooming motor is respectively connected with the optical lens and the driving control unit and used for realizing the movement control of the optical lens when receiving the zooming driving signal so as to correspondingly change the imaging focal length of the side camera.
4. The large truck according to claim 3, wherein the zoom motor is further configured to interrupt the movement control of the optical lens to keep the imaging focal length of the side camera constant upon receiving the driving end signal.
5. The large truck according to claim 4, wherein in the zone correction unit, numerically adjusting each zone split threshold based on the global split threshold comprises: and adjusting the value of the region segmentation threshold value based on the difference value from the integral segmentation threshold value to each region segmentation threshold value.
6. The large truck according to claim 5, wherein the region-modifying unit numerically adjusting the region-dividing threshold based on the magnitude of the difference of the overall-dividing threshold to each region-dividing threshold includes: the adjusted region segmentation threshold is the sum of the region segmentation threshold and one fourth of the difference.
7. The large truck of claim 6, wherein the central display screen is further configured to cease receiving and displaying the immediate lateral image upon receipt of the headway normality message.
CN201911079125.7A 2019-11-07 2019-11-07 Large truck Withdrawn CN111002890A (en)

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CN205059381U (en) * 2015-08-07 2016-03-02 陈伟 Remove commercial working car of management
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CN108985267A (en) * 2018-08-14 2018-12-11 浙江大丰实业股份有限公司 Auditorium identity scene identification system
CN109204106A (en) * 2018-08-27 2019-01-15 浙江大丰实业股份有限公司 Stage equipment mobile system
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205059381U (en) * 2015-08-07 2016-03-02 陈伟 Remove commercial working car of management
CN108189757A (en) * 2018-01-03 2018-06-22 潘荣兰 A kind of driving safety prompt system
CN108985267A (en) * 2018-08-14 2018-12-11 浙江大丰实业股份有限公司 Auditorium identity scene identification system
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