KR101760312B1 - A detecting system for the over loaded vehicles for the service of the road traffic safety - Google Patents

A detecting system for the over loaded vehicles for the service of the road traffic safety Download PDF

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Publication number
KR101760312B1
KR101760312B1 KR1020150168214A KR20150168214A KR101760312B1 KR 101760312 B1 KR101760312 B1 KR 101760312B1 KR 1020150168214 A KR1020150168214 A KR 1020150168214A KR 20150168214 A KR20150168214 A KR 20150168214A KR 101760312 B1 KR101760312 B1 KR 101760312B1
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South Korea
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vehicle
information
slit
cargo
camera
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KR1020150168214A
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Korean (ko)
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KR20170062702A (en
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허병회
정상운
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(주) 알티솔루션
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis

Abstract

The present invention relates to a cargo loading state detection system for a road traffic safety service, which comprises a camera and a slit camera around a cargo-carrying vehicle entrance structure, irradiating the cargo vehicle with laser slit light, The position information and the height information are generated as three-dimensional information based on the measured height information, and the length of the entire vehicle is obtained as the traveling speed of the vehicle to synthesize the 3D data of the entire vehicle A load detection device for restoring a vehicle to extract a car, a car width, a length information and a volume bias degree; A vehicle center system for determining whether the vehicle is overloaded in a vehicle exceeding a reference value according to the load state of the cargo taking into account the height, width, length, and volume of the cargo determined and transmitted by the load detection device; An intermittent server for receiving luggage information of an overload transmitted from the intermediate medium system and displaying related information or storing information for interrupting the overload by transmitting information about an overload vehicle to a nearby vehicle; And a driving unit for receiving information on an overloaded vehicle to be transmitted through the V2V communication to the control server or transmitting information about the overloaded vehicle to the infra-red infrastructure through V2I communication.
Accordingly, the laser slit is irradiated to the cargo object, the position of the slit is detected by the camera image, the height is calculated by the triangular method, the camera image and the three-dimensional data are generated, and the height, width and volume And can provide positional information sharing and alarm service of dangerous vehicle by overload by enabling the location of dangerous vehicle, sharing information of loading information, and danger alarm service using communication between vehicles passing through.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle loading status detection system for a road traffic safety service,

The present invention relates to a cargo loading state detection system for a road traffic safety service. More specifically, the present invention relates to a cargo loading state detection system for a road traffic safety service, in which a laser slit is irradiated onto a cargo carrying object, Image and three-dimensional data are generated to measure the height, width and volume of the cargo as it passes through the vehicle. By using the communication between the vehicles, it is possible to share the location of dangerous cargo, And more particularly, to a cargo loading state detection system for a road traffic safety service capable of sharing position information of a vans and providing an alarm service.

A poorly loaded car on the road has poor lateral and rear view visibility, and it is anxious to operate the car in case of overloading, which causes a serious obstacle to safe driving. In addition, if there is a falling object, it can cause a large traffic accident and give an uneasiness to the driver of another vehicle, which poses a great danger to safety operation. Therefore, in order not only to control the overload of the freight vehicle but also to secure the driving safety, the loading defect condition is checked and interrupted. Currently, unauthorized car inspections are carried out at the entrance of the sales office and the main road of the expressway through the naked eye by manual workers, security patrol officers, and mobility officers at CCTV, sales office entrance, And it is the fact that it is controlled.

There is no system that automatically detects the cargo loading condition and uses the information to prevent traffic safety service for the advance control or prevention, and there is also a very lack of technology for measuring and detecting the loading condition.

A CCTV camera is installed in the lane of entering the highway sales office car to inspect the loading fault. In other words, the laser sensor is installed at the height limit position to judge only whether or not the height interruption criterion is exceeded. Most of the width and length volume depend on the visual interruption.

There is no description about automatic detection and acquisition of status information through other methods other than visual inspection, because falling traffic caused by loading failure of freight vehicle and vehicle accident cause serious danger to safety traffic. Therefore, it is necessary to measure the height, width, and volume of the cargo by using camera image and 3D measurement technology, and to control it by biased.

1. Detecting system of overloaded vehicle (Patent Application No. 10-2003-0097685) 2. An automatic method for supervising an overloaded vehicles (Patent Application No. 10-2004-0025864)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to irradiate a cargo stacked object with a laser slit, to detect the position of a slit through a camera image, to calculate height by a triangular method, It measures the height, width, and volume of cargo, and can share the location of dangerous cargo and information on dangerous cargo and danger warning service by using communication between vehicles that pass through. And to provide a cargo loading state detection system for traffic safety service.

Further, the present invention utilizes a vehicle safety support service and Vehicle to Infra (V2I), which informs the information of the vehicle acquired by detecting an overloaded vehicle, using the short V2V (Vehicle to Vehicle) The present invention is to provide a cargo loading state detection system for a road traffic safety service that can be utilized in a communication platform for realizing the present invention.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a cargo vehicle information acquisition and oversampling system for a road traffic safety service according to an embodiment of the present invention is characterized in that a 2D camera and a slit camera are installed around a gantry structure, , The height of the slit is detected by the camera image, the height is calculated by the triangulation method, the height information and the position information are generated as three-dimensional information to calculate the length of the entire vehicle, and the 3D data synthesis A load detection device for restoring the vehicle to extract a car, a car width, a length information, and a volume congestion degree to calculate an overcurrent image; A vehicle center system for determining whether the vehicle is overloaded in a vehicle exceeding a reference value according to the load state of the cargo taking into account the height, width, length, and volume of the cargo determined and transmitted by the load detection device; An intermittent server for receiving luggage information of an overload transmitted from the intermediate medium system and displaying related information or storing information for interrupting the overload by transmitting information about an overload vehicle to a nearby vehicle; And a traveling device that is interlocked with the air traffic control server in wireless communication and transmits information of an overload vehicle through V2I communication, the system comprising: a load detection unit for detecting a cargo loading state for a road traffic safety service, The length of the slit is detected by the camera image according to the irradiation of the laser slit light, the height is calculated by using the height information and the position information, the length of the entire vehicle is calculated, A control unit for controlling various operations of the load detection device to extract vehicle width, length information, and volume bias to determine whether the vehicle is overloaded, a gantry structure that is separated from the slit camera at one side of the gantry structure So that the laser beam is irradiated to the incoming vehicle through the laser slit light generating unit, and the position of the first slit A first laser irradiating unit for generating a camera view by displaying a laser beam on a slit camera on the basis of a slit camera on the upper side of the gantry structure entering the cargo loaded vehicle, A first laser irradiating unit for irradiating the first laser irradiating unit and the second laser irradiating unit to irradiate the first laser irradiating unit and the second laser irradiating unit, A slit camera for transmitting the image information of the slit so that the height information of the first slit and the second slit generated for the vehicle are calculated by the image processing unit in a triangulation manner, image information of the slit transmitted through the slit camera, The height information calculated from the slit position detection by the triangulation method in the image processing unit and the upper A 2D exclusive camera for generating information of three-dimensional information to calculate the length of the entire vehicle and transmitting the image information of the overloaded vehicle to the intermediate medium system so that the vehicle information of the overloaded vehicle is extracted through the height, width, , A laser is irradiated to each of the first laser irradiation unit and the second laser irradiation unit to determine whether or not the cargo is loaded at the time of entering the gantry of the cargo loaded vehicle according to the control signal of the control unit to display the position of the slit A slit light generation unit for generating a camera view in response to a control signal of the control unit, and a control unit for controlling the slit light generation unit in accordance with irradiation of the laser slit light of the laser irradiation unit through the slit light generation unit according to entry of the cargo loading vehicle into the gantry, The position of the slit is detected through the camera image to calculate the height, and the calculated height information and the position information are stored in the three-dimensional information Generated is characterized in that calculating the total length of the vehicle and comprises an image processing unit through a 3D data synthesis garage, calculating the image of the overload whether to extract the degree of vehicle width, the length information and the volume concentrated.

delete

In the cargo loading state detection system for the road traffic safety service of the present invention, the vehicle movement speed at the time of vehicle restoration through 3D data synthesis in the 2D private camera is obtained by finding the pixel movement in the image through feature point tracking for each image frame, And calculates the actual speed of each frame to calculate the speed of the vehicle based on the overall vehicle shape and the feature point matching.

In the cargo loading state detection system for the road traffic safety service according to the embodiment of the present invention, the laser slit is irradiated to the cargo carrying object, the height of the slit is detected by the camera image, Dimensional data to measure the height, width, and volume of the cargo as it passes through the vehicle, share the location of the dangerous vehicle with the information of the car, and carry out the danger warning service, Information sharing and alarm service can be provided.

In addition, the cargo loading state detection system for road traffic safety service according to the embodiment of the present invention automatically detects the defective state and the biased state of the load through the three-dimensional measurement method, grasps the obtained cargo state information, Since bad cars can be controlled and controlled before entering the road, it provides the effect of preventing falling objects and preventing cargo accidents.

In addition, the cargo loading state detection system for the road traffic safety service according to the embodiment of the present invention can detect the loaded cargo freight and preliminarily control and control the vehicle through the acquired information, V2I to manage the overloaded vehicle, and overvoltage information is transmitted to the nearby vehicle through V2V, thereby preventing the traffic accident and reducing the damage.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a block diagram of a cargo loading state detection system for a road traffic safety service according to the present invention;
2 is a block diagram showing a detailed configuration of a load detection device of a cargo loading state detection system for a road traffic safety service according to FIG.
FIG. 3 is a structural view for three-dimensional stacking measurement of a cargo loaded state through a laser irradiation unit and a dedicated camera according to the present invention
4 is a schematic view showing a structure of a slit light generating part according to the present invention
5 is a cross-sectional view showing the state of the laser slit light according to the presence or absence of the cargo load according to the present invention
6 is a cross-sectional view showing a triangular structure for measuring the height of a load during laser light irradiation according to the present invention
7 is a flowchart for a method of detecting a cargo loading state for a road traffic safety service according to the present invention.
8 is a block diagram showing V2I for providing freight vehicle information according to an embodiment of the present invention.
9 is a sectional view showing the V2V vehicle safe running service status as another embodiment of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In the present specification, when any one element 'transmits' data or signals to another element, the element can transmit the data or signal directly to the other element, and through at least one other element Data or signal can be transmitted to another component.

1 is a block diagram of a cargo loading state detection system for a road traffic safety service according to the present invention. The cargo loading state detection system for a road traffic safety service according to the present invention includes a loading detection device 100, System 200, an intermittent server 300, and a vehicle 400. [

1, the detailed structure and operation of a cargo loading state detection system for a road traffic safety service according to the present invention will be described. The cargo loading detection device 100 includes a gantry structure A 2D camera and a slit camera are installed. The laser slit light is irradiated on the freight vehicle. The position of the slit is detected through the camera image, the height is calculated by the triangulation method, and the calculated height information and the position information are generated as three-dimensional information Calculates the length of the entire vehicle, restores the vehicle through 3D data synthesis, and extracts the height, width, length, and volume congestion of the vehicle to calculate the overload image.

The mid-shaft system 200 determines whether the vehicle is overloaded with respect to a vehicle exceeding a reference value corresponding to the loading state of the cargo, taking into account the height, width, length, and volume of the cargo determined and transmitted by the load detection device 100 .

The control server 300 receives the cargo information for the overload transmitted from the intermediate system 200 and displays the related information or transmits the information about the overloaded vehicle to the neighboring vehicle so as to control the overload .

In addition, the driving device 400 is configured to interwork with the intermittent speed server 300 through wireless communication such as a base station wireless repeater, and transmit information of the overtaking vehicle through V2I to the base station via wireless communication to manage the overtaking vehicle .

FIG. 2 is a block diagram showing a detailed configuration of a load detection device of a cargo loading status detection system for a road traffic safety service according to FIG. 1, FIG. 3 is a block diagram of a cargo loading status detection system The load detection system for the cargo loading state detection system for the road traffic safety service according to the present invention includes a control unit 110, a first laser irradiation unit 120, a second laser irradiation unit 120, A 2D dedicated camera 140, a slit camera 150, an illumination unit 160, a slit light generation unit 170, an image processing unit 180, a transceiver unit 190, and a storage unit.

1 to 3, the detailed structure and operation of the load detection device 100 of the cargo loading state detection system for road traffic safety service according to the present invention will be described. First, The length of the slit is detected by the camera image according to the irradiation of the laser slit light, the height is calculated by using the height information and the position information, the length of the entire vehicle is calculated, The vehicle width, the length information, and the volume congestion degree, and controls various operations of the load detection device to determine whether the vehicle is overloaded.

The first laser irradiation unit 120 is fixedly installed at one side of the upper part of the gantry structure to enter the cargo truck, separated from the slit camera 150, and irradiates the laser to the entrance vehicle through the laser slit light generation unit, The second laser irradiation unit 130 irradiates the first laser irradiation unit 120 with the slit camera 150 as a reference on one side of the gantry structure on the cargo loaded vehicle entrance gantry structure, And the position of the second slit is displayed by irradiating a laser beam to the entrance vehicle through the laser slit light generating unit so that a camera view is generated.

The slit camera 150 is located at the center of the upper part of the gantry structure for entering the cargo truck and is irradiated from the first laser irradiation unit 120 and the second laser irradiation unit 130 to generate the first slit and the second slit The image processing unit 180 transmits the image information of the slit so that the height information is calculated by the triangulation method.

The 2D-dedicated camera 140 receives height information and position information calculated through slit position detection in a triangulation method in the image processing unit 180 through the image information of the slit transmitted through the slit camera 150, And transmits the image information of the overloaded vehicle to the intermediate system so that the vehicle information of the overloaded vehicle is extracted through the height, width, length, and volume bias of the vehicle.

The illuminating unit 160 interlocks with the slit light generating unit 170 to automatically set the illuminance according to the entry of the vehicle and to detect the slit position according to the driving of the first laser irradiation unit 120 and the second laser irradiation unit 130 And controls the brightness and focus of the photographed image so that the camera can be photographed.

The slit light generating unit 170 may control the first laser irradiating unit 120 and the second laser irradiating unit 120 to determine whether or not the cargo is overloaded when the cargo loaded vehicle enters the inside of the gantry according to the control signal of the controller 110. [ The laser irradiation unit 130 irradiates a laser to display the position of the slit to generate a camera view.

The image processing unit 180 responds to the control signal of the control unit 110 to irradiate laser slit light of the laser irradiation units 120 and 130 through the slit light generating unit 170 in accordance with the entry of the cargo loaded vehicle into the gantry. The position of the slit is detected through the camera image of the slit camera 150 to calculate the height, the calculated height information and the position information are generated as three-dimensional information to calculate the length of the entire vehicle, , The car width, the length information, and the volume bias degree,

The transceiver 190 responds to the control signal of the controller 110 and transmits vehicle information of the oversleep depending on the garage, width, length information, and volume congestion extracted and stored in the storage unit, Respectively.

The storage unit stores the image of the oversleep extracted as garage, width, length information, and volume congestion through 3D data synthesis in the image processing unit 180 according to the control signal of the controller 110. [

As shown in FIG. 4, the slit light generator 170 includes a laser irradiator, a laser generator, a spherical lens, a cylindrical lens, and laser line light. The laser is condensed through the spherical lens, and a slit light in the form of a line is generated while passing through the cylindrical lens.

The irradiation angle is determined according to the thickness and the curvature of the cylindrical lens. In this case, the laser used is an invisible light region, which is an IR band of 800 nm to 1500 nm, which is strong against sunlight and the surrounding environment. .

5, when the laser beam is irradiated through the laser irradiation units 120 and 130 in the slit light generating unit 170, only the laser beams irradiated to the bottom of the road are displayed, If there is a load on the freight vehicle, the image of the position of the slit is generated according to the height of the load as the vehicle moves.

FIG. 6 is a cross-sectional view illustrating a triangular structure for measuring a height of a load during laser light irradiation according to the present invention. Referring to FIGS. 1 to 6, Laser beams L1 and L2 are generated when the first laser irradiation unit 120 and the second laser irradiation unit 130 irradiate the laser L1 and L2 entering the gantry respectively, LL1 and LL2 to the cargo truck and load that pass over the road. The irradiated laser slit is input through the camera image, and the position of the slit is detected in the image processing unit, and the height is calculated by the triangulation method.

That is, after the multi-slit beam is scanned in the object cargo, a slit line is formed as a minimum unit pixel in the image of each line obtained from the slit camera 150, and the laser spot becomes Xc.

A simple structure of three-dimensional measurement of a triangulation method considering a spot when a laser beam is irradiated, where Xc is a position that is formed on the original reference road surface in the absence of a vehicle, and Xd is a position that is formed in an actual object.

The position of Xc, which can be generated by a certain angle, can be obtained through calibration, and the position of Xd on the object can be found in the image of the camera.

Therefore, when the height from the road surface to the laser is H

beta = tan < -1 > (H / x)

The absolute height h1 of the object is obtained as follows.

h1 = dX tan (beta)

Therefore, the height of the irradiated point of the load changes by the triangular ratio of the position of the slit scanned on the road and the scanned position on the load, according to the angular position of each slit.

7 is a flowchart illustrating a method of detecting a cargo loading state for a road traffic safety service according to the present invention. Referring to FIGS. 1 to 7, a cargo loading state detection method for a road traffic safety service according to the present invention will be described. The laser slit image of the entry vehicle in the gantry is input through the first laser irradiation unit 120 and the second laser irradiation unit 130 through the slit light generating unit 170. In step S100,

(S200), the center point of the slit is extracted by gray thresholding and labeling (S300), and the extracted center point is positioned on the x-axis position of the 3D And calculates the height of the triangulation (S400).

Dimensional information using the height information and the X-axis and y-axis real world position information using the galley information as the height of the cargo with respect to the measured load amount (S500)

Thereafter, the controller checks whether the vehicle has passed through the gantry, generates the continuous data, obtains the length of the entire vehicle using the vehicle moving speed of the extracted image frame unit, synthesizes the 3D data of the entire vehicle based on the obtained length, ), Car width, length information, and volume bias degree are extracted using three-dimensional data to generate intermittent information for a vehicle exceeding the reference value (S800)

At this time, the vehicle movement speed at the time of restoring the vehicle through the 3D data synthesis is obtained by finding the pixel movement in the image through feature point tracking for each image frame in the 2D dedicated camera 140 and converting it to the actually moved distance, do.

That is, the 2D dedicated camera 140 is installed next to the slit camera 150, and is used to calculate the speed of the vehicle through the whole vehicle shape and feature point matching. The 2D dedicated camera must be calibrated after installation.

The oversampled vehicle information calculated above is transmitted to the transaxle system 200 through the transceiver 190 and the lorry information received from the transaxle system 200 is transmitted to the transceiver 200 via the V2V communication unit as shown in FIGS. And transmits it to the roadside infrastructure of the vehicle 400 through the V2I communication unit.

Therefore, when the inter-vehicle restricted vehicle enters the road via the V2V communication unit, the driving apparatus 400 notifies the loading vehicle information transmitted through the base station to the wireless network and the risk of collision with the nearby vehicle, Vehicle information can be transmitted to neighboring vehicles to reduce traffic accident damage.

In addition, the driving unit 400 provides the production and supply service of the freight vehicle-based traffic information that can be utilized in the communication platform through the V2I (Vehicle to Infra) communication unit, so that the position of the dangerous vehicle The cargo restricted vehicle information necessary for enabling the load information sharing and alarm service can be obtained.

As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms have been used, they have been used only in a general sense to easily describe the technical contents of the present invention and to facilitate understanding of the invention , And are not intended to limit the scope of the present invention. It is to be understood by those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100: load detection device
110: control unit 120: first laser irradiation unit
130: second laser irradiation unit 140: camera for 2D
150: camera for slit 160:
170: slit light generating unit 180: image processing unit
190: Transmitting /
200: Axis medium system
300: Cascade server
400: operating device

Claims (3)

Entering cargo loaded vehicle A 2D camera and a slit camera are laid around a gantry structure. A laser slit light is irradiated on a freight vehicle. The position of the slit is detected through a camera image, and the height is calculated by a triangulation method. Height information and position information are generated as three-dimensional information to calculate the length of the entire vehicle, and the vehicle is restored by synthesizing 3D data to extract the garage, car width, length information, and volume bias, Detection device 100; (200) for determining whether the vehicle is overloaded in a vehicle exceeding a reference value according to the loading state of the cargo taking into account the height, width, length, and volume of the cargo determined and transferred by the load detection device (100); An intermittent server 300 for receiving luggage information of an overload transmitted from the intermediate system 200 and displaying related information, or storing information for interrupting the overload by transmitting information about an overloaded vehicle to a nearby vehicle, ; And a traveling device (400) interlocked with the air traffic control server (300) in a wireless communication and transmitting information of an overload vehicle through V2I communication, the system comprising:
The load detection device 100
According to the laser slit light irradiation according to the entry of the cargo loaded vehicle, the height is calculated by detecting the position of the slit with the camera image, and the length of the entire vehicle is calculated by generating the three-dimensional information using the calculated height information and the position information. A control unit 110 for controlling various operations of the load detection device in order to determine whether the vehicle is overloaded by extracting the height, width, length,
The gantry structure of the cargo loaded vehicle is spaced apart from the slit camera 150 and is fixedly installed. The laser beam is irradiated to the entrance vehicle through the laser slit light generating unit to display the position of the first slit, A first laser irradiation unit 120 for generating a laser beam,
The first laser irradiation unit 120 is fixedly installed on one side of the gantry structure of the cargo loaded vehicle so that the first laser irradiation unit 120 is symmetrical with respect to the slit camera 150 and irradiated with the laser of the entrance vehicle through the laser slit light generation unit, A second agent lowering unit 130 for displaying a position and generating a camera view,
The first slit and the second slit irradiated from the first laser irradiation unit 120 and the second laser irradiation unit 130 and generated for the entrance vehicle are positioned at the center of the upper part of the gantry structure entering the cargo truck, A slit camera 150 for transmitting image information of the slit so that height information is calculated by the processing unit 180 in a triangulation manner,
The image information of the slit transmitted through the slit camera 150 is generated as three-dimensional information of height information and position information calculated through slit position detection in a triangulation method in the image processing unit 180, A 2D dedicated camera 140 for transmitting the image information of the overloaded vehicle to the intermediate medium system so that the overloaded vehicle information is extracted through the car height, the vehicle width, the length information, and the volume bias degree,
A laser is irradiated to the first laser irradiating unit 120 and the second laser irradiating unit 130 to the entrance vehicle in order to judge whether or not the cargo is loaded at the time of entering the gantry of the cargo loaded vehicle according to the control signal of the controller 110 A slit light generating unit 170 for generating a camera view by displaying the position of the slit by irradiation,
In response to the control signal from the controller 110, the slit light generator 170 is driven to enter the cargo loading vehicle into the gantry, and the slit camera 150 is irradiated with laser slit light from the laser irradiation units 120 and 130, The height of the slit is detected through the camera image of the slit, and the height information and the position information are calculated as three-dimensional information to calculate the length of the entire vehicle. And an image processing unit (180) for extracting the degree of biasing and calculating an image of overload.
delete The method according to claim 1,
In the 2D dedicated camera 140
Through the 3D data synthesis, the vehicle movement speed is obtained by finding the pixel movement in the image through feature point tracking for each image frame, converting it to the actually moved distance, calculating the actual speed in frame units, Characterized in that the speed of the vehicle is calculated Load Carrying Status Detection System for Road Traffic Safety Service.
KR1020150168214A 2015-11-30 2015-11-30 A detecting system for the over loaded vehicles for the service of the road traffic safety KR101760312B1 (en)

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