Smart park vehicle control system

By identifying the imaging area of ​​the stereo parking mechanism and the human body target in the image, calculating the arithmetic average of the depth of field value, judging the visual distance between the two, and performing corresponding alarm operations, the problem of lack of effective detection and early warning mechanisms in the prior art is solved, and the real-time alarm function in the parking space conversion process of the stereo parking mechanism is realized.

CN119851510AInactive Publication Date: 2025-04-18NANJING MICAILE ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510075313.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-04-03
Filing Date
2025-01-17
Publication Date
2025-04-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

There is a lack of an effective solution mechanism in the prior art to detect and early warning whether the human targets are in contact with the three-dimensional parking mechanism during operation.

Method used

By identifying the imaging area occupied by the stereoscopic parking mechanism and the human body target in the continuous processing image, the arithmetic average of the depth of field values ​​of each pixel point is calculated as the reference depth of field value, the visual distance between the two is judged, and the connection or phase separation recognition signal is emitted under preset conditions, and the corresponding photoelectric alarm operation is performed.

Benefits of technology

Real-time judgment and alarm of the contact between human targets and the three-dimensional parking mechanism during parking space conversion process of three-dimensional parking mechanisms is realized, and the safety and efficiency of vehicle management in smart parks is improved.

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Abstract

The invention relates to a smart park vehicle control system which comprises a displacement control mechanism, a state judgment mechanism, a scene shooting mechanism, a continuous processing mechanism, a first recognition device, a second recognition device, a third recognition device and a customized alarm device. The system can realize intelligent management of vehicles in an intelligent park.
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Description

Technical Field

[0001] The present invention relates to the field of smart parks, and more specifically, to a smart park vehicle control system. Background Art

[0002] Image analysis is closely related to image processing, computer graphics and other research contents, and they overlap with each other. However, image processing mainly studies image transmission, storage, enhancement and restoration; computer graphics mainly studies the representation methods of points, lines, surfaces and bodies and the display methods of visual information; image analysis focuses on the description methods of constructing images, and more often uses symbols to represent various images, rather than operating on the image itself, and using various related knowledge to make inferences. Image analysis is also closely related to the study of human vision. The study of certain recognizable modules in the human visual mechanism can promote the improvement of computer vision capabilities.

[0003] Currently, image analysis has been applied in a large number of fields, for example, in the management of smart parks. Generally speaking, in order to improve the efficiency of the use of the site, the park uses three-dimensional parking spaces to manage parking. There are some specific areas in the application where image analysis can be used for monitoring and processing. For example, it is necessary to perform on-site scene detection, judgment and early warning of whether a human target is in contact with the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism. Obviously, there is a lack of corresponding mature solution mechanisms in the existing technology. Summary of the invention

[0004] In order to solve the technical problems in the related fields, the present invention provides a smart park vehicle control system, which can identify the imaging area occupied by the three-dimensional parking mechanism in the continuously processed image as the first recognition block based on the imaging characteristics of the three-dimensional parking mechanism, identify the imaging area occupied by the human target in the continuously processed image as the second recognition block based on the imaging characteristics of the human target, and use the arithmetic mean of each depth of field value corresponding to each pixel point in the first recognition block after removing the maximum value and the minimum value as the first reference depth of field value, and use the arithmetic mean of each depth of field value corresponding to each pixel point in the second recognition block after removing the maximum value and the minimum value as the second reference depth of field value. The depth value is also used to send out a contact recognition signal when the difference between the first reference depth of field value and the second reference depth of field value is between 0 and a preset depth of field threshold and there are overlapping pixels in the first recognition block and the second recognition block, and use a preset flashing frequency to execute a photoelectric alarm operation corresponding to the human target contacting the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism; otherwise, send out a separation recognition signal to temporarily suspend the use of the preset flashing frequency to execute the photoelectric alarm operation corresponding to the human target contacting the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism, thereby realizing real-time alarm based on the visual distance analysis results between the three-dimensional parking mechanism and the human target during the parking space conversion process of the three-dimensional parking mechanism.

[0005] The present invention needs to have at least the following important invention points: Invention point A: Based on the imaging characteristics of the three-dimensional parking mechanism, the imaging area occupied by the three-dimensional parking mechanism in the continuously processed image is identified as the first identification block, and based on the imaging characteristics of the human target, the imaging area occupied by the human target in the continuously processed image is identified as the second identification block; Invention point B: The arithmetic mean of the depth of field values ​​corresponding to each pixel point in the first recognition block after removing the maximum value and the minimum value is used as the first reference depth of field value, and the arithmetic mean of the depth of field values ​​corresponding to each pixel point in the second recognition block after removing the maximum value and the minimum value is used as the second reference depth of field value; Invention point C: When the difference between the first reference depth of field value and the second reference depth of field value is between 0 and a preset depth of field threshold and there are overlapping pixels in the first identification block and the second identification block, a contact identification signal is issued, and a preset flashing frequency is used to execute a photoelectric alarm operation corresponding to the human target contacting the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism; otherwise, a separation identification signal is issued to temporarily suspend the use of the preset flashing frequency to execute the photoelectric alarm operation corresponding to the human target contacting the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism, thereby realizing real-time alarm based on the visual distance analysis results between the three-dimensional parking mechanism and the human target during the parking space conversion process of the three-dimensional parking mechanism.

[0006] According to the present invention, a smart park vehicle control system is provided, the system comprising: A shift control mechanism, serving the three-dimensional parking mechanism and comprising a plurality of drive motors, a plurality of positioning components and a timing synchronization component, for realizing position switching of a plurality of parking spaces in the three-dimensional parking mechanism between different positions of the three-dimensional parking mechanism; A state judgment mechanism, connected to the shift control mechanism, for sending a first judgment signal when it is detected that the shift control mechanism is in an operating state at the current moment, and for sending a second judgment signal otherwise; A scene shooting mechanism, connected to the state judgment mechanism and arranged facing the three-dimensional parking mechanism, for executing a shooting action of the scene where the three-dimensional parking mechanism is located upon receiving the first judgment signal, so as to obtain and output a corresponding parking scene image; A continuous processing mechanism, comprising a first-layer processing component, a second-layer processing component and a final-layer processing component and connected to the scene shooting mechanism, for continuously performing histogram equalization processing, image content enhancement processing based on logarithmic transformation and band-stop filtering processing on the received parking scene image, so as to obtain and output a corresponding continuously processed image; a first recognition device connected to the continuous processing mechanism, and used to recognize an imaging area occupied by the three-dimensional parking mechanism in the continuously processed image as a first recognition block based on the imaging characteristics of the three-dimensional parking mechanism, and to recognize an imaging area occupied by a human target in the continuously processed image as a second recognition block based on the imaging characteristics of a human target, wherein the imaging characteristics of the three-dimensional parking mechanism are a standard contour pattern of the three-dimensional parking mechanism, and the imaging characteristics of the human target are a standard contour pattern of the human target; A second recognition device, connected to the first recognition device, is used to take the arithmetic mean of the depth of field values ​​corresponding to the pixels in the first recognition block after removing the maximum value and the minimum value as the first reference depth of field value, and take the arithmetic mean of the depth of field values ​​corresponding to the pixels in the second recognition block after removing the maximum value and the minimum value as the second reference depth of field value; A third identification device is connected to the second identification device, and is used to send a connection identification signal when the difference between the first reference depth of field value and the second reference depth of field value is between 0 and a preset depth of field threshold value and there are overlapping pixels in the first identification block and the second identification block, otherwise, send a separation identification signal; The customized alarm device is connected to the third identification device and is used to perform a photoelectric alarm operation corresponding to a human target contacting the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism using a preset flashing frequency when receiving a contact identification signal.

[0007] The intelligent park vehicle control system of the present invention is intelligent in operation and easy to operate. Since it can identify the imaging area occupied by the three-dimensional parking mechanism in the continuously processed image as the first identification block, and identify the imaging area occupied by the human target in the continuously processed image as the second identification block, it can realize the intelligent judgment of whether the human target and the three-dimensional parking mechanism are in contact during the operation of the three-dimensional parking mechanism, thereby realizing real-time alarm based on the visual distance analysis results between the three-dimensional parking mechanism and the human target during the parking space conversion process of the three-dimensional parking mechanism. DETAILED DESCRIPTION

[0008] Example 1

[0009] The smart park vehicle control system according to embodiment 1 of the present invention includes: A shift control mechanism, serving the three-dimensional parking mechanism and comprising a plurality of drive motors, a plurality of positioning components and a timing synchronization component, for realizing position switching of a plurality of parking spaces in the three-dimensional parking mechanism between different positions of the three-dimensional parking mechanism; For example, the shift control mechanism, serving the three-dimensional parking mechanism and including a plurality of drive motors, a plurality of positioning components and a timing synchronization component, is used to realize the position switching of a plurality of parking spaces in the three-dimensional parking mechanism between different positions of the three-dimensional parking mechanism, including: a PLC device can be selected to realize the shift control mechanism, serving the three-dimensional parking mechanism and including a plurality of drive motors, a plurality of positioning components and a timing synchronization component, and realizing the position switching of a plurality of parking spaces in the three-dimensional parking mechanism between different positions of the three-dimensional parking mechanism; A state judgment mechanism, connected to the shift control mechanism, for sending a first judgment signal when it is detected that the shift control mechanism is in an operating state at the current moment, and for sending a second judgment signal otherwise; A scene shooting mechanism, connected to the state judgment mechanism and arranged facing the three-dimensional parking mechanism, for executing a shooting action of the scene where the three-dimensional parking mechanism is located upon receiving the first judgment signal, so as to obtain and output a corresponding parking scene image; A continuous processing mechanism, comprising a first-layer processing component, a second-layer processing component and a final-layer processing component and connected to the scene shooting mechanism, for continuously performing histogram equalization processing, image content enhancement processing based on logarithmic transformation and band-stop filtering processing on the received parking scene image, so as to obtain and output a corresponding continuously processed image; a first recognition device connected to the continuous processing mechanism, and used to recognize an imaging area occupied by the three-dimensional parking mechanism in the continuously processed image as a first recognition block based on the imaging characteristics of the three-dimensional parking mechanism, and to recognize an imaging area occupied by a human target in the continuously processed image as a second recognition block based on the imaging characteristics of a human target, wherein the imaging characteristics of the three-dimensional parking mechanism are a standard contour pattern of the three-dimensional parking mechanism, and the imaging characteristics of the human target are a standard contour pattern of the human target; A second recognition device, connected to the first recognition device, is used to take the arithmetic mean of the depth of field values ​​corresponding to the pixels in the first recognition block after removing the maximum value and the minimum value as the first reference depth of field value, and take the arithmetic mean of the depth of field values ​​corresponding to the pixels in the second recognition block after removing the maximum value and the minimum value as the second reference depth of field value; A third identification device is connected to the second identification device, and is used to send a connection identification signal when the difference between the first reference depth of field value and the second reference depth of field value is between 0 and a preset depth of field threshold value and there are overlapping pixels in the first identification block and the second identification block, otherwise, send a separation identification signal; A customized alarm device, connected to the third identification device, for, upon receiving a contact identification signal, using a preset flashing frequency to perform a photoelectric alarm operation corresponding to a human target contacting the three-dimensional parking mechanism during operation of the three-dimensional parking mechanism; Wherein, the customized alarm device is also used to temporarily suspend the use of a preset flashing frequency to perform a photoelectric alarm operation corresponding to a human target contacting the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism when receiving a phase separation recognition signal; Wherein, the scene shooting mechanism is further used to stop shooting the scene where the three-dimensional parking mechanism is located when receiving the second judgment signal; Among them, the shift control mechanism serves the three-dimensional parking mechanism and includes multiple drive motors, multiple positioning components and timing synchronization components, which is used to realize the position switching of multiple parking spaces in the three-dimensional parking mechanism between different positions of the three-dimensional parking mechanism. It includes: each parking space is configured with a drive motor and a positioning component.

[0010] Example 2

[0011] A smart park vehicle control system is shown in accordance with Example 2 of the present invention.

[0012] Different from Example 1, the smart park vehicle control system in Example 2 may also include the following components: An SOC control chip is connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism respectively, and is used to provide configuration operations of working parameters for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner; The SOC control chip is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide the first identification device, the second identification device, the third identification device and the continuous processing mechanism with the configuration operation of the working parameters in a time-sharing manner, including: the first identification device, the second identification device, the third identification device and the continuous processing mechanism share the same working parameter configuration interface; Wherein, the first identification device, the second identification device, the third identification device and the continuous processing mechanism use different configuration address data; Wherein, a parallel connection of a communication data link is established between each of the first identification device, the second identification device, the third identification device and the continuous processing mechanism through a parallel data bus; Among them, the parallel connection of the communication data link established between the first identification device, the second identification device, the third identification device and the continuous processing mechanism through a parallel data bus includes: the parallel data bus is one of an 8-bit parallel data bus, a 16-bit parallel data bus and a 32-bit parallel data bus.

[0013] Example 3

[0014] Embodiment 3 of the present invention shows a smart park vehicle control system.

[0015] Different from Example 1, the smart park vehicle control system in Example 3 may also include the following components: A power support device, connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, respectively, for providing power distribution support of different working voltages to the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner; The power support device is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide power distribution support with different working voltages for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner, including: two or more devices with the same working voltage requirements in the first identification device, the second identification device, the third identification device and the continuous processing mechanism use the same power supply line; Wherein, the power support device is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide power distribution support of different working voltages for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner, and further includes: the power support device is an uninterruptible power supply device; Among them, the power support device is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide power distribution support with different working voltages for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in time-sharing, and further includes: providing different working voltages including 3.3V working voltage for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in time-sharing; And wherein, the power support device is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide power distribution support with different working voltages for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner, and also includes: providing different working voltages including a 5V working voltage for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner.

[0016] In addition, in the smart park vehicle control system, the shift control mechanism serves the three-dimensional parking mechanism and includes multiple drive motors, multiple positioning components and a timing synchronization component, which is used to realize the position switching of multiple parking spaces in the three-dimensional parking mechanism between different positions of the three-dimensional parking mechanism. It also includes: the timing synchronization component is respectively connected to multiple drive motors to realize the synchronous control of the driving actions of the multiple drive motors.

[0017] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications, equivalent structures and functions.

Claims

1. A smart park vehicle control system, characterized in that: The system comprises: A shift control mechanism, serving the three-dimensional parking mechanism and comprising a plurality of drive motors, a plurality of positioning components and a timing synchronization component, for realizing position switching of a plurality of parking spaces in the three-dimensional parking mechanism between different positions of the three-dimensional parking mechanism; A state judgment mechanism, connected to the shift control mechanism, for sending a first judgment signal when it is detected that the shift control mechanism is in an operating state at the current moment, and for sending a second judgment signal otherwise; A scene shooting mechanism, connected to the state judgment mechanism and arranged facing the three-dimensional parking mechanism, for executing a shooting action of the scene where the three-dimensional parking mechanism is located upon receiving the first judgment signal, so as to obtain and output a corresponding parking scene image; A continuous processing mechanism, comprising a first-layer processing component, a second-layer processing component and a final-layer processing component and connected to the scene shooting mechanism, for continuously performing histogram equalization processing, image content enhancement processing based on logarithmic transformation and band-stop filtering processing on the received parking scene image, so as to obtain and output a corresponding continuously processed image; a first recognition device connected to the continuous processing mechanism, and used to recognize an imaging area occupied by the three-dimensional parking mechanism in the continuously processed image as a first recognition block based on the imaging characteristics of the three-dimensional parking mechanism, and to recognize an imaging area occupied by a human target in the continuously processed image as a second recognition block based on the imaging characteristics of a human target, wherein the imaging characteristics of the three-dimensional parking mechanism are a standard contour pattern of the three-dimensional parking mechanism, and the imaging characteristics of the human target are a standard contour pattern of the human target; A second recognition device, connected to the first recognition device, is used to take the arithmetic mean of the depth of field values ​​corresponding to the pixels in the first recognition block after removing the maximum value and the minimum value as the first reference depth of field value, and take the arithmetic mean of the depth of field values ​​corresponding to the pixels in the second recognition block after removing the maximum value and the minimum value as the second reference depth of field value; A third identification device is connected to the second identification device, and is used to send a connection identification signal when the difference between the first reference depth of field value and the second reference depth of field value is between 0 and a preset depth of field threshold value and there are overlapping pixels in the first identification block and the second identification block, otherwise, send a separation identification signal; The customized alarm device is connected to the third identification device and is used to perform a photoelectric alarm operation corresponding to a human target contacting the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism using a preset flashing frequency when receiving a contact identification signal.

2. The smart park vehicle control system according to claim 1, characterized in that: The customized alarm device is also used to temporarily suspend the use of a preset flashing frequency to perform a photoelectric alarm operation corresponding to a human target contacting the three-dimensional parking mechanism during the operation of the three-dimensional parking mechanism when receiving a phase separation recognition signal; Wherein, the scene shooting mechanism is further used to stop shooting the scene where the three-dimensional parking mechanism is located when receiving the second judgment signal; Among them, the shift control mechanism serves the three-dimensional parking mechanism and includes multiple drive motors, multiple positioning components and timing synchronization components, which is used to realize the position switching of multiple parking spaces in the three-dimensional parking mechanism between different positions of the three-dimensional parking mechanism. It includes: each parking space is configured with a drive motor and a positioning component.

3. The smart park vehicle control system according to claim 2, characterized in that: The system further comprises: An SOC control chip is connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism respectively, and is used to provide configuration operations of working parameters for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner; Among them, the SOC control chip is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide the configuration operation of working parameters for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner, including: the first identification device, the second identification device, the third identification device and the continuous processing mechanism share the same working parameter configuration interface.

4. The smart park vehicle control system according to claim 3, characterized in that: The first identification device, the second identification device, the third identification device and the continuous processing mechanism use different configuration address data.

5. The smart park vehicle control system according to claim 3, characterized in that: Establishing parallel connections of communication data links between the first identification device, the second identification device, the third identification device and the continuous processing mechanism through parallel data buses; Among them, the parallel connection of the communication data link established between the first identification device, the second identification device, the third identification device and the continuous processing mechanism through a parallel data bus includes: the parallel data bus is one of an 8-bit parallel data bus, a 16-bit parallel data bus and a 32-bit parallel data bus.

6. The smart park vehicle control system according to claim 2, characterized in that: The system further comprises: A power support device, connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, respectively, for providing power distribution support of different working voltages to the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner; Among them, the power support device is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide power distribution support with different working voltages for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner, including: among the first identification device, the second identification device, the third identification device and the continuous processing mechanism, two or more devices with the same working voltage requirements use the same power supply line.

7. The smart park vehicle control system according to claim 6, characterized in that: The power support device is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide power distribution support with different working voltages for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner, and also includes: the power support device is an uninterruptible power supply device.

8. The smart park vehicle control system according to claim 7, characterized in that: The power support device is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide power distribution support with different working voltages for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner, and also includes: providing different working voltages including a 3.3V working voltage for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner.

9. The smart park vehicle control system according to claim 8, characterized in that: The power support device is respectively connected to the first identification device, the second identification device, the third identification device and the continuous processing mechanism, and is used to provide power distribution support with different working voltages for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner, and also includes: providing different working voltages including a 5V working voltage for the first identification device, the second identification device, the third identification device and the continuous processing mechanism in a time-sharing manner.