Multi-image vehicle type acquisition unit

Abstract

The utility model provides a multi-image vehicle model acquisition unit, which comprises a quadrangular column, and a chassis is arranged at the foot part of the column; the vehicle body camera is arranged at the head part of the upright post and is arranged on a first side vertical surface of the upright post; the vehicle tail camera and the vehicle head camera are installed at the head of the stand column, the vehicle tail camera is installed on the second side vertical face of the stand column, the vehicle head camera is installed on the third side vertical face of the stand column, and the first side vertical face of the stand column is located between the second side vertical face and the third side vertical face; the laser head is installed in the middle of the stand column and installed on the first side vertical face of the stand column. The light supplementing lamps are located in the middle of the stand column, and the light supplementing lamps are arranged on the first side vertical face, the second side vertical face and the third side vertical face of the stand column. The vehicle type acquisition unit provided by the utility model can provide comprehensive and clear images for vehicle type identification.

Description

Technical Field

[0001] This application relates to the technical field of traffic control systems for vehicles, and specifically, to a multi-image vehicle type acquisition unit. Background Art

[0002] Currently, most toll collection checkpoints on highways and in parking lots are machine-based. Since the toll rates for different vehicle types are different, it is necessary for the highway automatic toll collection machine to accurately identify the vehicle type before accurately charging by collecting comprehensive and accurate images of the passing vehicles. Vehicle identification mostly uses image recognition, so image acquisition devices need to be set up at toll collection checkpoints. Especially for highway toll collection checkpoints, it is necessary to accurately and comprehensively collect images of vehicles passing by quickly. How to collect comprehensive and accurate images of passing vehicles is one of the key problems that need to be solved in highway automatic toll collection. Summary of the Invention

[0003] To solve the above problems, this application provides a multi-image vehicle type acquisition unit, aiming to collect comprehensive and accurate images of vehicles passing through the multi-image vehicle type acquisition unit.

[0004] Specifically, the multi-image vehicle type acquisition unit includes:

[0005] A column, in the shape of a quadrangular prism, with a chassis provided at the foot of the column;

[0006] A body camera, installed at the head of the column and on the first side surface of the column;

[0007] A rear-end camera and a front-end camera, installed at the head of the column, the rear-end camera is installed on the second side surface of the column, the front-end camera is installed on the third side surface of the column, and the first side surface of the column is located between the second side surface and the third side surface;

[0008] A laser head, installed at the waist of the column and on the first side surface of the column;

[0009] A fill light, installed at the waist of the column, and the fill light is provided on the first side surface, the second side surface and the third side surface of the column.

[0010] In a preferred embodiment, the body camera is a fish-eye camera.

[0011] In a preferred embodiment, both the rear-end camera and the front-end camera are installed on a pan-tilt head, and the pan-tilt head drives the rear-end camera and the front-end camera to pitch and rotate. In a preferred embodiment, the height of the body camera is lower than that of the rear-end camera and the front-end camera.

[0012] In a preferred embodiment, the range of the pan-tilt head driving the rear vehicle camera and the front vehicle camera to pitch is from 15 degrees of upward view to 15 degrees of downward view.

[0013] In a preferred embodiment, sun visors are provided along the upper edges of the vehicle body camera, the rear vehicle camera, and the front vehicle camera.

[0014] In a preferred embodiment, the laser emission direction of the laser head is obliquely downward.

[0015] In a preferred embodiment, the laser heads are grouped in pairs and there are three groups, and the three groups of laser heads are arranged vertically.

[0016] In a preferred embodiment, the light emission direction of the fill light provided on the second side elevation is parallel to the optical axis of the lens of the rear vehicle camera;

[0017] The light emission direction of the fill light provided on the third side elevation is parallel to the optical axis of the lens of the front vehicle camera.

[0018] In a preferred embodiment, the height of the fill light provided on the first side elevation of the column is lower than that of the fill lights provided on both the second side elevation and the third side elevation.

[0019] The multi-image vehicle model acquisition unit provided by the present application includes: a column in the shape of a quadrangular prism, and a chassis is provided at the foot of the column; a vehicle body camera is installed at the head of the column and on the first side elevation of the column; a rear vehicle camera and a front vehicle camera are installed at the head of the column, the rear vehicle camera is installed on the second side elevation of the column, the front vehicle camera is installed on the third side elevation of the column, and the first side elevation of the column is located between the second side elevation and the third side elevation; a laser head is installed in the middle of the column and on the first side elevation of the column; a fill light is located in the middle of the column, and the fill lights are provided on the first side elevation, the second side elevation, and the third side elevation of the column. Vehicle photos are collected by cameras in different positions to provide comprehensive image information for vehicle model judgment. The lasers emitted by the laser heads are used to separate continuously passing vehicles, and fill lights are provided to timely increase the ambient brightness and ensure image quality, so as to be able to provide comprehensive and clear images for vehicle model recognition.

[0020] To further clarify, the aspects and advantages of the embodiments disclosed in the present application will become apparent in the following description section, or be understood through the practice of the embodiments disclosed in the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present application and form a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention.

[0022] Figure 1 It is a schematic structural diagram of the multi-image vehicle type acquisition unit provided in Embodiment 1 of the present application;

[0023] Figure 2 It is an enlarged schematic diagram of a part of the structure of the multi-image vehicle type acquisition unit in Embodiment 1 of the present application. Specific Embodiments

[0024] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0025] Embodiment 1

[0026] This embodiment provides a multi-image vehicle type acquisition unit for carrying an image acquisition device, which is installed at a toll gate to acquire images of vehicles passing through the multi-image vehicle type acquisition unit. The vehicle images obtained through the multi-image vehicle type acquisition unit provided in this embodiment can be used to determine the vehicle type, so as to accurately charge fees.

[0027] Refer to Figure 1 , specifically, the multi-image vehicle type acquisition unit includes:

[0028] Column 1, which is a quadrangular prism, and the foot of Column 1 is provided with a chassis 5; it is connected to the bottom surface of the toll island through the chassis 5;

[0029] Body camera 2, which is installed at the head of Column 1 and on the first side surface of Column 1 ( Figure 1 the side facing away from the paper surface in

[0030] Rear vehicle camera 3 and front vehicle camera 4, which are installed at the head of Column 1. The rear vehicle camera 3 is installed on the second side surface of Column 1, and the front vehicle camera 4 is installed on the third side surface of Column 1. The first side surface of Column 1 is located between the second side surface and the third side surface; in this embodiment, the front vehicle camera 4 and the rear vehicle camera 3 are symmetrically distributed with respect to the body camera 2;

[0031] Laser head 6, which is installed at the waist of Column 1 and on the first side surface of Column 1;

[0032] Fill light 7, which is installed at the waist of Column 1, and fill lights 7 are provided on the first side surface, the second side surface and the third side surface of Column 1. Refer to Figure 1 , the fill light 7 located on the first side surface is located below the laser head 6, and there is no mutual coverage or occlusion between the two.

[0033] The multi-image vehicle model acquisition unit provided in this embodiment collects vehicle photos through cameras located at different positions (the body camera 2 facing the vehicle passing through the passage, the head camera 4 facing the oncoming vehicle direction, and the tail camera 3 facing the vehicle leaving direction), providing comprehensive image information for vehicle model judgment.

[0034] Furthermore, the multi-image vehicle model acquisition unit provided in this embodiment uses the laser emitted by the laser head 6 to separate continuously passing vehicles, and a fill light 7 is provided to appropriately increase the ambient brightness and ensure image quality, so as to be able to provide comprehensive and clear images for vehicle model recognition.

[0035] In a preferred implementation manner, the body camera 2 is a fish-eye camera, which can collect body photos at a larger angle, regardless of whether it is a car with a smaller body height or a truck with a larger body height.

[0036] In a preferred implementation manner, both the tail camera 3 and the head camera 4 are installed on a pan-tilt head. The pan-tilt head drives the tail camera 3 and the head camera 4 to pitch and rotate to collect head photos and tail photos of vehicles with different head and tail heights. In this implementation manner, the height of the body camera 2 is lower than that of the tail camera 3 and the head camera 4. On the one hand, in terms of the angle itself, the body camera 2 needs to be slightly lower than the head camera 4 and the tail camera 3. On the other hand, the head camera 4 and the tail camera 4 are installed on the pan-tilt head and need to have a pitch angle.

[0037] In a preferred implementation manner, the range of pitch rotation of the pan-tilt head driving the tail camera 3 and the head camera 4 is from 15 degrees of upward view to 15 degrees of downward view.

[0038] In a preferred implementation manner, sunshades are provided at the upper edges of the body camera 2, the tail camera 3, and the head camera 4.

[0039] In a preferred implementation manner, referring to Figure 2 , the laser emission direction of the laser head 6 is obliquely downward. A certain laser reflection angle is beneficial to improving the accuracy of laser scanning.

[0040] Continuing to refer to Figure 2 , the laser heads 6 are grouped in pairs and are provided with three groups: a high-position group 61, a middle-position group 62, and a low-position group 63. The high-position group 61, the middle-position group 62, and the low-position group 63 are arranged vertically.

[0041] And the plate surface of the mounting plate for installing the laser head 6 is inclined downward in the vehicle passing direction, so that the laser emission direction of the laser head 6 installed on it is obliquely downward.

[0042] In this embodiment, the mounting plate 64 is divided into three sections. The lower end of the upper section of the mounting plate 64 is connected to the upper rear side of the lower section of the mounting plate 64 (the rear side is the side of the mounting plate facing the column 1), so as to ensure that the distance between each laser head 64 and the passing direction of the vehicle is the same, and save the installation space of the multi-image vehicle model acquisition unit.

[0043] In a preferred embodiment, the light emission direction of the fill light 7 provided on the second side elevation is parallel to the optical axis of the lens of the rear vehicle camera 3;

[0044] The light emission direction of the fill light 7 provided on the third side elevation is parallel to the optical axis of the lens of the front vehicle camera 4.

[0045] By this embodiment, the fill light efficiency can be improved.

[0046] In a preferred embodiment, the height of the fill light 7 provided on the first side elevation of the column 1 is lower than that of the fill lights 7 provided on the second side elevation and the third side elevation.

[0047] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technical solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the technical solution.

[0048] In the technical solution of the present application, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the technical solution of the present application can be understood according to specific situations.

[0049] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this technical solution. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0050] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. Multi-image vehicle model acquisition unit, characterized in that: Include: The column is in the form of a quadrangular prism, and a base is provided at the foot of the column; A body camera mounted on the head of the pillar and on a first side elevation of the pillar; A rear camera and a front camera are mounted on the head of the pillar, the rear camera is mounted on the second side elevation of the pillar, the front camera is mounted on the third side elevation of the pillar, and the first side elevation of the pillar is located between the second side elevation and the third side elevation; A laser head is mounted on the waist of the column and on the first side elevation of the column; The fill light is installed at the waist of the column, and the fill light is arranged on the first side elevation, the second side elevation and the third side elevation of the column.

2. The multi-image vehicle type acquisition unit according to claim 1, characterized in that: The vehicle body camera is a fisheye camera.

3. The multi-image vehicle type acquisition unit according to claim 2, characterized in that: The rear camera and the front camera are both mounted on a pan-tilt platform, and the pan-tilt platform drives the rear camera and the front camera to pitch and rotate.

4. The multi-image vehicle type acquisition unit according to claim 3, characterized in that: The height of the vehicle body camera is lower than that of the rear camera and the front camera.

5. The multi-image vehicle type acquisition unit according to claim 4, characterized in that: The pan / tilt platform drives the rear camera and the front camera to pitch and rotate in a range of 15 degrees upward to 15 degrees downward.

6. The multi-image vehicle type acquisition unit according to claim 4, characterized in that: Sun visors are arranged on the upper edges of the vehicle body camera, the rear camera and the front camera.

7. The multi-image vehicle type acquisition unit according to claim 1, characterized in that: The laser head emits laser light in an obliquely downward direction.

8. The multi-image vehicle type acquisition unit according to claim 1, characterized in that: The laser heads are arranged in groups of two and three groups are arranged vertically.

9. The multi-image vehicle type acquisition unit according to claim 1, characterized in that: The light emission direction of the fill light arranged on the second side elevation is parallel to the lens optical axis of the rear camera; The light emission direction of the fill light arranged on the third side facade is parallel to the optical axis of the lens of the front camera.

10. The multi-image vehicle type acquisition unit according to claim 9, characterized in that: The height of the fill-in light arranged on the first side elevation of the column is lower than the fill-in lights arranged on the second side elevation and the third side elevation.

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