A method for determining road parking regulations based on ultrasonic sensors

Abstract

The present invention provides a method for determining road parking specification detection based on an ultrasonic sensor, which relates to the field of intelligent parking technology. The determination method is as follows: when a road parking space intelligent terminal enters a parking specification detection state, it first communicates with the two terminals in front and behind to determine whether both are in a parking state. If both are in a parking state, the detection is skipped; otherwise, detection is performed with the corresponding terminals respectively to determine whether there is a vehicle in the middle. By deploying an ultrasonic sensor in the road parking space intelligent terminal, an ultrasonic detector is used to transmit ultrasonic waves and receive echoes, and the distance between the parking space and the sensor is measured in real time. When a parked vehicle is detected, an analysis and judgment is performed based on the ultrasonic distance data, combined with a preset standard distance range, to determine whether the vehicle meets the parking specifications, thereby preventing the driver from parking between two road parking space intelligent terminals and affecting other drivers' parking.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent parking, and in particular to a determination method for detecting road parking regulations based on an ultrasonic sensor. Background Art

[0002] In the context of urban traffic congestion and limited parking spaces, the reasonable and effective management of roadside parking has become an important task. However, many drivers have irregular behaviors when choosing parking spaces or parking, such as parking in inappropriate locations, exceeding markings, occupying sidewalks, etc., which brings safety hazards and inconvenience to traffic order and pedestrian traffic.

[0003] The existing application number is: 202311286405.1, which is a method and system for detecting and warning abnormal parking space occupancy. The method includes: obtaining parking occupancy detection data information of a target parking space through a parking space detector; extracting vehicle features from the parking occupancy detection data information through a vehicle identification submodule to obtain vehicle appearance feature information; obtaining object feature vehicle information of the target parking space based on a parking space management system; performing matching analysis based on the vehicle appearance feature information and the object feature vehicle information to obtain a vehicle feature matching result; when the vehicle feature matching result is a mismatch, using the abnormal warning submodule to perform abnormal identification and warning on the parking occupancy detection data information. The use of this method can achieve the technical effect of realizing intelligent real-time detection of parking space occupancy, improving the accuracy of abnormal occupancy identification, and thus ensuring the timeliness of parking space occupancy warning.

[0004] Another example is a parking space detection system, method, and smart parking platform with application number: 201911106468.8. The parking space detection system of the present invention includes a parking space unit, a master control unit, and a bus unit. The parking space unit is responsible for processing the information detected by the various sensors on each parking space and transmitting this information to the master control unit through the bus unit. After receiving the information from each parking space unit, the master control unit fuses the information and determines the parking space usage based on the fused information through the parking space determination algorithm. The determined information is then sent to the data processing center through the communication module. The driver and the parking management party can obtain this data information through the relevant application to the data processing center. The present invention has the advantages of high detection accuracy and low construction, construction, and maintenance costs. The detection system of the present invention can be laid in different types of parking lots and has strong adaptability.

[0005] Another example is an IoT-based smart parking management system with application number: 202110407874.9, which includes a management platform, a data server, a parking lot smart parking module, a roadside smart parking module and a car owner terminal. The user information input is used to collect and input corresponding vehicle information and store it in the data server; the fee rate adjustment is used to reward or punish corresponding vehicles; the car owner terminal includes an APP and a mini-program. The present invention can punish car owners for illegal parking through the blacklist management, user information input and fee rate adjustment of the management platform, improve parking order, and facilitate vehicle management. The alarm, gravity sensor, geomagnetic sensor and video parking space detector of the roadside smart parking module can remind car owners to park their vehicles in designated locations, avoiding situations where car owners park their vehicles on the parking line, occupy two parking spaces or park across the line, thereby improving the utilization rate of parking spaces.

[0006] Most of the aforementioned parking regulation detection methods are based on vision technology, using cameras or sensors for image analysis or target recognition. However, due to factors such as ambient light, obstructions, and camera angle, these methods may have limitations in accuracy and reliability in some cases. To address this issue, we propose a method for road parking regulation detection based on ultrasonic sensors to address the above issues. Summary of the Invention

[0007] The problem to be solved by the present invention is that most existing parking regulation detection methods are based on visual technology, using cameras or sensors for image analysis or target recognition. However, due to the influence of factors such as ambient light, obstructions, and camera angle, these methods may have limitations in accuracy and reliability in some cases.

[0008] In order to solve the above technical problems, the present invention provides a method for detecting road parking regulations based on ultrasonic sensors. The specific steps of the determination method are as follows:

[0009] S1: Install road parking space intelligent terminals in several vertically arranged roadside parking spaces;

[0010] S2: Connecting the road berth intelligent terminal to the server. The road berth intelligent terminal will pull the working parameters set by the server for the ultrasonic sensor and cache them. The working parameters include the trigger detection conditions.

[0011] S3: When the road parking space intelligent terminal enters the parking standard detection state, it first communicates with the two terminals in front and behind to determine whether both are in the parking state. If both are in the parking state, the detection is skipped. Otherwise, it checks with the corresponding terminal to determine whether there is a vehicle in the middle;

[0012] S4: The detection results are transmitted to the server. The server processes the ultrasonic detection data and determines whether the parking is in compliance with the judgment method. After the server processes the results, it returns them to the road parking intelligent terminal and starts the judgment program execution.

[0013] S5: Call the front and rear road parking space intelligent terminals to assist in the determination. After the current parking space sends ultrasonic detection data, the server will call the ultrasonic detection function of the front and rear terminals. After obtaining the detection data, the integrated data is used to obtain the result. Subsequent operations are the same as above.

[0014] Preferably, the road berth intelligent terminal in S1 includes a data acquisition module, a voice playback module, a mechanical lifting module, a terminal control module, and a network transmission module;

[0015] The data acquisition module includes an ultrasonic sensor, a pressure sensor, and an infrared sensor. The ultrasonic sensor transmits ultrasonic waves and receives echoes through an ultrasonic detector to measure the distance between the parking space and the sensor in real time. The pressure sensor is used to sense whether a vehicle enters the parking space.

[0016] The voice playback module is used to broadcast the determination result, the mechanical lifting module is used to adjust the position of the road berth intelligent terminal, the terminal control module is used to control the operation of each component in the road berth intelligent terminal, and the network transmission module is used to transmit data.

[0017] Preferably, the trigger detection condition in S2 is:

[0018] S201: Setting the road parking intelligent terminal to wake up the ultrasonic sensor every 3 minutes to detect parking regulations;

[0019] S202: When the pressure sensor of the road parking space intelligent terminal senses that a vehicle has entered the parking space, the ultrasonic sensor is awakened to detect parking regulations.

[0020] Preferably, the standard detection mechanism in S3 is that the current terminal A identifies whether there is an obstacle in front of it based on ultrasound, identifies the obstacle area size M1, and the obstacle comprehensive distance X1, and the front terminal B similarly detects the obstacle area size M2 and the obstacle comprehensive distance X2, and the method is as follows:

[0021] S301: First determine whether M1 and M2 are both greater than 0.7m 2 , if it exceeds the limit, it will be judged as a normal vehicle;

[0022] S302: If the distances X1 and X2 between A and B are less than two meters, it is determined that there is an abnormal vehicle, and foreign objects exceeding 2 meters are determined to be cars;

[0023] S303: If both S301 and S302 are satisfied, the first-level determination procedure will be executed. If S301 is satisfied and the distance in S302 is between 1 and 2 meters, the second-level determination procedure will be executed.

[0024] Preferably, the execution standard of the determination procedure in S303 is:

[0025] S3031: Level 1 judgment is for road parking spaces. The intelligent terminal will issue a voice prompt and conduct another check after 1 minute. If the parking is still illegal, the management platform will be reported and nearby inspectors will be notified to conduct on-site verification.

[0026] S3032: The second level is determined by the road parking intelligent terminal through voice prompts. It will be tested again after 1 minute. If it is still abnormal, it will be reported to the management platform. The customer service staff of the management platform will determine whether it is necessary to notify nearby inspectors by querying the road camera.

[0027] Preferably, the road berth intelligent terminal further includes an exception handling module, and the exception handling module includes pressure sensor failure, ultrasonic sensor failure, and data transmission interruption.

[0028] Preferably, the measuring range of the ultrasonic sensor is 2-3 meters, the number of the road berth intelligent terminals is two, and the ultrasonic sensor is inclined at 30° to the plane of the road berth intelligent terminal.

[0029] Preferably, both the road berth intelligent terminal and the server are provided with a heartbeat detection module, which describes the availability of each function, and the status of each road berth intelligent terminal can be clearly found in the management background.

[0030] Technical effects and advantages of the present invention:

[0031] The present invention deploys ultrasonic sensors in road parking space intelligent terminals, uses ultrasonic detectors to emit ultrasonic waves and receive echoes, and measures the distance between the parking space and the sensor in real time. When a parked vehicle is detected, it analyzes and judges based on the ultrasonic distance data, and combines it with a preset standard distance range to determine whether the vehicle meets the parking standards. This prevents drivers from parking between two road parking space intelligent terminals, affecting other drivers' parking. At the same time, it reduces the workload of inspectors, helps improve urban traffic order, and enhances drivers' parking awareness and civilized quality.

[0032] The present invention uses ultrasound to detect the position of the vehicle. As a radio wave, ultrasound has the advantages of good penetrability, being unaffected by ambient light, and being adaptable to different weather conditions. It can provide reliable distance data information. Compared with other sensors, it has the characteristics of low cost and strong adaptability, which is conducive to improving the accuracy of the determination method.

[0033] The present invention is provided with an exception handling module. When the pressure sensor in the terminal fails, the ultrasonic sensor or other sensors malfunction, or an abnormality occurs in the calling function, the abnormal data will be uploaded to the maintenance list of the management system, and the maintenance personnel will be notified for inspection. When the data transmission is interrupted, the intelligent terminal will have a data upload record. If the first attempt fails, a second attempt will be made to connect to the server. If the connection cannot be made after three attempts, the heartbeat detection interface will be called again in 5 minutes. If it is not online, the terminal will be actively lowered and the device will be offline. After the device is offline, if the heartbeat interface of the management background cannot connect to the device, the maintenance personnel will be notified to check and repair it, which is beneficial to improve the stability of the road berth intelligent terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the framework structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the overall process of the present invention. DETAILED DESCRIPTION

[0036] The present invention provides a method for determining road parking regulations based on ultrasonic sensors, such as Figure 1-2 As shown, the specific steps of the determination method are as follows:

[0037] S1: Install road parking space intelligent terminals in several vertically arranged roadside parking spaces;

[0038] S2: Connecting the road berth intelligent terminal to the server. The road berth intelligent terminal will pull the working parameters set by the server for the ultrasonic sensor and cache them. The working parameters include the trigger detection conditions.

[0039] S3: When the road parking space intelligent terminal enters the parking standard detection state, it first communicates with the two terminals in front and behind to determine whether both are in the parking state. If both are in the parking state, the detection is skipped. Otherwise, it checks with the corresponding terminal to determine whether there is a vehicle in the middle;

[0040] S4: The detection results are transmitted to the server. The server processes the ultrasonic detection data and determines whether the parking is in compliance with the judgment method. After the server processes the results, it returns them to the road parking intelligent terminal and starts the judgment program execution.

[0041] S5: Call the front and rear road parking space intelligent terminals to assist in the judgment. After the current parking space sends the ultrasonic detection data, the server will call the ultrasonic detection function of the front and rear terminals. After obtaining the detection data, the comprehensive data will be used to obtain the result. The subsequent operations are the same as above.

[0042] By deploying ultrasonic sensors in road parking space smart terminals, using ultrasonic detectors to emit ultrasonic waves and receive echoes, the distance between the parking space and the sensor is measured in real time. When a parked vehicle is detected, analysis and judgment are made based on the ultrasonic distance data, combined with the preset standard distance range, to determine whether the vehicle meets the parking standards, thereby preventing drivers from parking between two road parking space smart terminals, affecting other drivers' parking. At the same time, it reduces the workload of inspectors, helps improve urban traffic order, and enhances drivers' parking awareness and civilized quality.

[0043] Furthermore, the road berth intelligent terminal in S1 includes a data acquisition module, a voice playback module, a mechanical lifting module, a terminal control module, and a network transmission module;

[0044] The data acquisition module includes an ultrasonic sensor, a pressure sensor, and an infrared sensor. The ultrasonic sensor transmits ultrasonic waves and receives echoes through an ultrasonic detector to measure the distance between the parking space and the sensor in real time. The pressure sensor is used to sense whether a vehicle has entered the parking space.

[0045] The voice playback module is used to broadcast the judgment results, the mechanical lifting module is used to adjust the position of the road berth intelligent terminal, the terminal control module is used to control the operation of each component in the road berth intelligent terminal, and the network transmission module is used to transmit data.

[0046] Ultrasonic waves are used to detect the position of the vehicle. As a type of radio wave, ultrasonic waves have the advantages of good penetration, no influence from ambient light, and adaptability to different weather conditions. They can provide reliable distance data information. Compared with other sensors, they are low-cost and highly adaptable, which helps to improve the accuracy of this determination method.

[0047] Furthermore, the trigger detection conditions in S2 are:

[0048] S201: Setting the road parking intelligent terminal to wake up the ultrasonic sensor every 3 minutes to detect parking regulations;

[0049] S202: When the pressure sensor of the road parking space intelligent terminal senses that a vehicle has entered the parking space, the ultrasonic sensor is awakened to detect parking regulations.

[0050] By setting trigger detection conditions, the stability of the road berth intelligent terminal can be improved, thereby reducing missed calculations and under-calculation.

[0051] Furthermore, the standard detection mechanism in S3 is that the current terminal A uses ultrasound to identify whether there is an obstacle in front, and identifies the obstacle area size M1 and the obstacle comprehensive distance X1. The front terminal B also detects the obstacle area size M2 and the obstacle comprehensive distance X2. The method is as follows:

[0052] S301: First determine whether M1 and M2 are both greater than 0.7m 2 , if it exceeds the limit, it will be judged as a normal vehicle;

[0053] S302: If the distances X1 and X2 between A and B are less than two meters, it is determined that there is an abnormal vehicle, and foreign objects exceeding 2 meters are determined to be cars;

[0054] S303: If both S301 and S302 are satisfied, the first-level determination procedure will be executed. If S301 is satisfied and the distance in S302 is between 1 and 2 meters, the second-level determination procedure will be executed.

[0055] Furthermore, the execution criteria of the determination procedure in S303 are:

[0056] S3031: Level 1 judgment is for road parking spaces. The intelligent terminal will issue a voice prompt and conduct another check after 1 minute. If the parking is still illegal, the management platform will be reported and nearby inspectors will be notified to conduct on-site verification.

[0057] S3032: The second level is determined by the road parking intelligent terminal through voice prompts. It will be tested again after 1 minute. If it is still abnormal, it will be reported to the management platform. The customer service staff of the management platform will determine whether it is necessary to notify nearby inspectors by querying the road camera.

[0058] By standardizing the detection mechanism and determining the execution standards of the procedures, illegal parking can be reported to the management platform. At the same time, the customer service staff of the management platform can determine whether it is necessary to notify nearby inspectors by querying road cameras, thereby reducing the workload of inspectors.

[0059] Furthermore, the road berth intelligent terminal also includes an exception handling module, which includes pressure sensor failure, ultrasonic sensor failure, and data transmission interruption.

[0060] By setting up an exception handling module, when the pressure sensor in the terminal fails, the ultrasonic sensor malfunctions, or an abnormality occurs in the calling function, the exception handling module will upload the fault to the maintenance list of the management system and notify the maintenance personnel to inspect it. Regarding data transmission interruption, the smart terminal will have a data upload record. If the first attempt fails, a second attempt will be made to connect to the server. If the connection cannot be made after three attempts, the heartbeat detection interface will be called again in 5 minutes. If it is not online, the terminal will be actively lowered and the device will be offline. After the device is offline, the heartbeat interface of the management background cannot connect to the device and the maintenance personnel will be notified to check and repair it.

[0061] Furthermore, the measuring range of the ultrasonic sensor is 2-3 meters, the number of the road berth intelligent terminals is two, and the ultrasonic sensor is inclined at 30° to the plane of the road berth intelligent terminal.

[0062] The ultrasonic sensor is tilted 30 degrees to the plane of the road berth intelligent terminal to improve the accuracy of data collection.

[0063] Furthermore, both the road berth intelligent terminal and the server are equipped with a heartbeat detection module, which will describe the availability of each function. The status of each road berth intelligent terminal can be clearly found in the management background.

[0064] Through the heartbeat detection module, the availability of each function will be expressed in the heartbeat detection module, so that the status of each smart terminal can be clearly discovered in the management background, and abnormal terminals will be regularly inspected and replaced by maintenance personnel.

[0065] Server-side updates follow the normal iteration of Internet product development, and a more configurable approach is adopted for hardware. By configuring file functions on the server side and caching them in smart terminals through interfaces, the problem of regular hardware updates requiring on-site debugging and updates is reduced.

[0066] The working principle of the present invention is as follows: by deploying ultrasonic sensors in road parking intelligent terminals, using ultrasonic detectors to emit ultrasonic waves and receive echoes, the distance between the parking space and the sensor is measured in real time. When a vehicle is detected parked, it is analyzed and judged based on the ultrasonic distance data, and combined with the preset standard distance range, it is determined whether the vehicle meets the parking specifications, thereby preventing the driver from parking between two road parking intelligent terminals, affecting other drivers' parking, and reducing the work of inspectors, which helps to improve urban traffic order and enhance drivers' parking awareness and civilized quality. By using ultrasonic waves to detect the position of the vehicle, and as a radio wave, ultrasonic waves have the advantages of good penetration, unaffected by ambient light, and adaptable to different weather conditions, and can provide reliable distance data information. Compared with other sensors, it has the characteristics of low cost and strong adaptability, which is conducive to improving the accuracy of the judgment method. Through the exception handling module, when the pressure sensor in the terminal fails, the ultrasonic sensor and other sensors fail, and the calling function is abnormal, the abnormal data will be uploaded to the maintenance list of the management system to notify the maintenance personnel for inspection. When the data transmission is interrupted, the smart terminal will have a data upload record. If the first attempt fails, a second attempt will be made to connect to the server. If it cannot be connected after three attempts, the heartbeat detection interface will be called again in 5 minutes. If it is not online, the terminal will be actively lowered and the device will be offline. After the device is offline, the heartbeat interface of the management background cannot connect to the device and the maintenance personnel will be notified to check and repair it, which is conducive to improving the stability of the road berth smart terminal.

[0067] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A method for detecting road parking regulations based on ultrasonic sensors, characterized by: The specific steps of the determination method are as follows: S1: Installing a roadside parking space intelligent terminal in a number of vertically arranged roadside parking spaces; the roadside parking space intelligent terminal includes a data acquisition module, a voice playback module, a mechanical lifting module, a terminal control module, and a network transmission module; wherein: the data acquisition module includes an ultrasonic sensor, a pressure sensor, and an infrared sensor; the ultrasonic sensor transmits ultrasonic waves and receives echoes through an ultrasonic detector to measure the distance between the parking space and the sensor in real time; the pressure sensor is used to sense whether a vehicle has entered the parking space; the voice playback module is used to broadcast the judgment result; the mechanical lifting module is used to adjust the position of the roadside parking space intelligent terminal; the terminal control module is used to control the operation of each component of the roadside parking space intelligent terminal; and the network transmission module is used to transmit data; S2: Connecting the road berth intelligent terminal to the server. The road berth intelligent terminal will pull the working parameters set by the server for the ultrasonic sensor and cache them. The working parameters include the trigger detection conditions. S3: When the road berth intelligent terminal enters the parking standard detection state, it first communicates with the front and rear terminals to determine whether both are in the parking state. If both are in the parking state, the detection is skipped. Otherwise, the corresponding terminals are detected to determine whether there is a vehicle in the middle. The mechanism of the standard detection is that the current terminal A uses ultrasonic waves to identify whether there is an obstacle in front, and identifies the obstacle area size M1 and the obstacle comprehensive distance X1. The front terminal B also detects the obstacle area size M2 and the obstacle comprehensive distance X2. The method is as follows: S301: First, determine whether M1 and M2 are both greater than 0.7m2. If they are greater than 0.7m2, it is determined to be a normal vehicle. S302: If the distances X1 and X2 between A and B are less than two meters, it is determined to be an abnormal vehicle, and foreign objects exceeding 2m are determined to be cars. S303: If both S301 and S302 are satisfied, the first-level determination procedure will be executed. If S301 is satisfied and the distance in S302 is between 1-2m, the second-level determination procedure will be executed. S4: The detection results are transmitted to the server. The server processes the ultrasonic detection data and determines whether the parking is in compliance with the judgment method. After the server processes the results, it returns them to the road parking intelligent terminal and starts the judgment program execution. S5: Call the front and rear road parking space intelligent terminals to assist in the judgment. After the current parking space sends the ultrasonic detection data, the server will call the ultrasonic detection function of the front and rear terminals. After obtaining the detection data, the comprehensive data will be used to obtain the result. The subsequent operations are the same as above.

2. The method for determining road parking regulations based on ultrasonic sensors according to claim 1, characterized in that: The trigger detection conditions in S2 are: S201: Setting the road parking intelligent terminal to wake up the ultrasonic sensor every 3 minutes to detect parking regulations; S202: When the pressure sensor of the road parking space intelligent terminal senses that a vehicle has entered the parking space, the ultrasonic sensor is awakened to detect parking regulations.

3. The method for determining road parking regulations based on ultrasonic sensors according to claim 1, characterized in that: The standard detection mechanism in S3 is that the current terminal A uses ultrasound to identify whether there is an obstacle in front, and identifies the obstacle area size M1 and the obstacle comprehensive distance X1. The front terminal B also detects the obstacle area size M2 and the obstacle comprehensive distance X2. The method is as follows: S301: First determine whether M1 and M2 are both greater than 0.7m 2 , if it exceeds the limit, it will be judged as a normal vehicle; S302: If the distances X1 and X2 between A and B are less than two meters, it is determined that there is an abnormal vehicle, and foreign objects exceeding 2 meters are determined to be cars; S303: If both S301 and S302 are satisfied, the first-level determination procedure will be executed. If S301 is satisfied and the distance in S302 is between 1 and 2 meters, the second-level determination procedure will be executed.

4. The method for determining road parking regulations based on ultrasonic sensors according to claim 1, characterized in that: The road berth intelligent terminal also includes an exception processing module, and the exception processing module includes pressure sensor failure, ultrasonic sensor failure, and data transmission interruption.

5. The method for determining road parking regulations based on ultrasonic sensors according to claim 1, characterized in that: The measuring range of the ultrasonic sensor is 2-3 meters, the number of the road berth intelligent terminals is two, and the ultrasonic sensor is inclined at 30 degrees to the plane of the road berth intelligent terminal.

6. The method for determining road parking regulations based on ultrasonic sensors according to claim 1, characterized in that: The road berth intelligent terminal and the server are both provided with a heartbeat detection module, which describes the availability of each function. The status of each road berth intelligent terminal can be clearly found in the management background.

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