A light-sensing parking space system and a parking space sensing method

Abstract

The application relates to the technical field of parking auxiliary equipment, in particular to a light-sensing type parking space system and a parking space sensing method. The light-sensing type parking space system comprises a main light strip, the main light strip is arranged in the interior of a main body of a parking space, and a light-emitting surface of the main light strip covers a main body surface of the parking space; a light strip control module is electrically connected with the main light strip, and the light strip control module is used for controlling the light intensity of the light strip. The parking space sensing method comprises the following steps: when a vehicle is reversing, a vehicle sensing system senses and measures the distance of the parking space; and whether the parking space is an effective parking space is judged according to the width of a parking space area indicated by the main light strip. The application distinguishes the main body of the parking space and the edge through the arrangement of light strips of different colors, so that the light illumination condition of the garage is improved, and the recognition ability of the vehicle-mounted visual sensing system to the parking space is enhanced.

Description

Technical Field

[0001] This application relates to the field of parking assistance equipment technology, and in particular to a light-sensing parking space system and a parking space sensing method. Background Technology

[0002] In mechanical parking spaces, the parking area is mainly enclosed by an upward-curving edge (steel plate). Mechanical parking spaces generally have multiple layers. When a vehicle is parked in a lower level, the light is easily blocked by the upper level, especially when the parking space is underground, where the light is even weaker. This makes the vehicle's visual perception system (reversing camera, reversing radar, etc.) have a low recognition rate for the parking space and is prone to recognition errors. Summary of the Invention

[0003] The technical problem that this invention aims to solve is that the existing underground mechanical parking garages are poorly lit, resulting in unclear parking space identification.

[0004] Therefore, the present invention provides a light-sensing parking space system and a parking space sensing method.

[0005] The technical solution adopted by this invention to solve its technical problem is: A light-sensing parking system includes: The main light strip is installed inside the main body of the parking space, and the luminous surface of the main light strip covers the main body of the parking space. The light strip control module is electrically connected to the main light and is used to control the light intensity of the light strip.

[0006] By adopting the above technical solution, light strips are installed in the garage to indicate the location of parking spaces. The light strips also supplement the ambient light intensity, reducing the occurrence of parking space recognition errors due to poor lighting in the garage, thereby improving the effectiveness and efficiency of parking space recognition.

[0007] Furthermore, the photosensitive sensor is mounted on the base plate above the parking space, and the photosensitive sensor is electrically connected to the light strip control module.

[0008] Furthermore, it also includes auxiliary light strips, which are set on the edges of both sides of the parking space.

[0009] Furthermore, the color of the auxiliary light strip is different from the color of the main light strip.

[0010] By adopting the above technical solution, auxiliary light strips and main light strips are used to distinguish between the edge and the parking space. The parking space and its edge in the mechanical parking space are usually made of steel plate. In poor lighting conditions, the edge and the parking space are easily confused, which can lead to the wheels squeezing against the edge when reversing, resulting in unstable reversing and deviation in the reversing position. Different colors are used to distinguish the edge and the parking space area, which makes it easier to clearly identify the parking space and improves the reversing efficiency.

[0011] Furthermore, the auxiliary light strip is electrically connected to the light strip control module.

[0012] Furthermore, the light intensity of the main light strip and the auxiliary light strip varies from 0 to A (lux). When the light intensity detected by the photosensitive sensor is less than A (lux), the light strip control module controls the light intensity of the main light strip and the auxiliary light strip to change until the light intensity detected by the photosensitive sensor reaches A (lux).

[0013] A parking space sensing method includes the following steps: When the vehicle is reversing, the vehicle sensing system detects the parking space and measures the distance. Determine whether a parking space is valid based on the width of the parking area indicated by the measured main light strip.

[0014] Furthermore, if only one auxiliary light strip is detected or no auxiliary light strip is detected, and the width of the detected main light strip area is greater than Jm, then it is determined to be a valid parking space, where J = I + a, I is the vehicle width, a is a positive number, and a is the margin of the vehicle width between the side wall of the vehicle and the boundary of the parking space.

[0015] Furthermore, if the width of the detected main light strip area is less than Jm, or if no main light strip area is detected, the parking space is determined to be invalid.

[0016] Furthermore, if two auxiliary light strips are detected, then as long as the main light strip is detected, it is determined to be a valid parking space.

[0017] The beneficial effect of this invention is that it adds light strips to the edge and bottom plate of existing mechanical parking spaces, and installs a photosensitive sensor on the bottom plate above the parking space. The photosensitive sensor monitors the ambient light and automatically adjusts the light intensity of the light strips to maintain the ambient light intensity within a suitable range, thereby improving the poor lighting environment in the garage.

[0018] By using an in-vehicle vision perception system to identify light strips, the system's ability to perceive and detect mechanical parking spaces is enhanced, greatly improving the success rate of parking space recognition, especially in environments with low light intensity. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the light-sensing parking system in this invention.

[0021] Figure 2 This is a schematic diagram of the identification strategy for determining valid parking spaces in this invention. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] A light-sensing parking system includes a main light strip, an auxiliary light strip, a light strip control module, and a light sensor.

[0026] The main light strip is installed inside the main body of the parking space, and its luminous surface covers the main body of the parking space. There are two auxiliary light strips, which are installed on the edges of both sides of the parking space. The main light strip and the auxiliary light strip are different colors, with the main light strip being yellow and the auxiliary light strip being white. Both the main light strip and the auxiliary light strip are electrically connected to the light strip control module, which is used to adjust the light intensity of the main light strip and the auxiliary light strip. The light intensity range of the main light strip and the auxiliary light strip is 0-A (lux).

[0027] The light sensor is connected to the base plate above the parking space. The light sensor is used to sense the intensity of ambient light and is electrically connected to the light strip control module.

[0028] The ambient light intensity adjustment strategy in the LED strip control module is as follows: When the ambient light intensity X (lux) detected by the photosensitive sensor is greater than A (lux), the light strip control module can control the light intensity of the main light strip and the auxiliary light strip to be appropriately reduced until the ambient light intensity detected by the photosensitive sensor reaches A (lux). When the ambient light intensity X (lux) detected by the photosensitive sensor is less than A (lux), the light strip control module adjusts the light intensity of the main light strip and the auxiliary light strip until the ambient light intensity X (lux) reaches A (lux). When the ambient light intensity X (lux) detected by the photosensitive sensor is equal to A (lux), the light strip control module controls the light intensity of the main light strip and the auxiliary light strip to remain unchanged.

[0029] A parking space sensing method includes the following steps: Step 1: When the vehicle is reversing, the vehicle sensing system senses the parking space and measures the distance. Step 2: Determine whether a parking space is a perceptible parking space based on the width of the parking space area indicated by the measured main light strip. The parking space identification strategy is shown in Table 1.

[0030]

[0031] Specifically, the auxiliary light strip is inspected, then the main light strip is inspected, and the width of the detected main light strip is determined.

[0032] Provided that the ambient light intensity is greater than or equal to Alux, when the vehicle-mounted visual perception system (reversing camera, reversing radar) detects auxiliary light strips, or when the vehicle-mounted visual perception system (reversing camera, reversing radar) detects two auxiliary light strips but does not detect the main light strip, the area is determined to be an invalid parking space where parking is not allowed.

[0033] When the vehicle vision perception system (reversing camera, reversing radar) detects auxiliary light strips, and when the vehicle vision perception system (reversing camera, reversing radar) detects two auxiliary light strips and also detects the main light strip, regardless of the width of the detected main light strip, it determines that the area is a valid parking space.

[0034] When the vehicle's visual perception system (reversing camera, reversing radar) detects a missed detection in the auxiliary light strip (i.e., only one or both auxiliary light strips are detected), it detects the main light strip. If the main light strip is detected but the width of the main light strip area (main parking space area) is less than Jm, the area is determined to be a valid parking space. If the width of the main light strip area (main parking space area) is between Jm and Km, the area is determined to be a valid parking space.

[0035] Where J = I + a, I is the vehicle width, a is a positive number, a is the margin between the side wall of the vehicle and the boundary of the parking space, a ranges from 20cm to 50cm, and K is the widest vehicle width among existing vehicles.

[0036] Step 3: When the vehicle's visual perception system detects a valid parking space, continue reversing. If no valid parking space is detected, control the vehicle to move forward, adjust the direction, and reverse again. Repeat Step 2 until a valid parking space is detected.

[0037] In summary, this application adds light strips to the edges and floor of existing mechanical parking spaces, and installs a photosensitive sensor on the floor above the parking space. The photosensitive sensor monitors the ambient light and automatically adjusts the light intensity of the light strips to maintain the ambient light intensity within a suitable range, thereby improving the poor lighting environment in the garage.

[0038] By using an in-vehicle vision perception system to identify light strips, the system's ability to perceive and detect mechanical parking spaces is enhanced, greatly improving the success rate of parking space recognition, especially in environments with low light intensity.

[0039] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A light-sensing parking space system, characterized in that, include: The main light strip is installed inside the main body of the parking space, and the luminous surface of the main light strip covers the main body of the parking space. A light strip control module is electrically connected to the main light and is used to control the light intensity of the light strip. Auxiliary light strips are installed on the edges of both sides of the parking space; A parking space sensing method, comprising the following steps: When the vehicle is reversing, the vehicle sensing system detects the parking space and measures the distance. Determine whether a parking space is valid based on the width of the parking area indicated by the main light strip. If only one auxiliary light strip is detected or no auxiliary light strip is detected, if the width of the detected main light strip area is greater than Jm, it is judged as a valid parking space, where J=I+a, I is the vehicle width, a is a positive number, and a is the margin of the vehicle width between the side wall of the vehicle and the boundary of the parking space. If the width of the detected main light strip area is less than Jm, or if no main light strip area is detected, the parking space is determined to be invalid. If two auxiliary light strips are detected, then as long as the main light strip is detected, the parking space is considered valid.

2. The light-sensing parking system according to claim 1, characterized in that, It also includes a light sensor, which is mounted on the base plate above the parking space and is electrically connected to the light strip control module.

3. The light-sensing parking system according to claim 1, characterized in that, The color of the auxiliary light strip is different from the color of the main light strip.

4. The light-sensing parking system according to claim 1, characterized in that, The auxiliary light strip is electrically connected to the light strip control module.

5. The light-sensing parking system according to claim 1, characterized in that, The light intensity of the main light strip and the auxiliary light strip varies from 0 to A (lux). When the light intensity detected by the photosensitive sensor is less than A (lux), the light strip control module controls the light intensity of the main light strip and the auxiliary light strip to change until the light intensity detected by the photosensitive sensor reaches A (lux).

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