TWI764289B - Parking Sensing Device - Google Patents

Abstract

The parking sensing device provided by the present invention is installed on the edge of the roadside parking grid and is connected to a cloud parking management platform to generate parking status information and static image files when a vehicle is detected. Upload it to the cloud parking management platform to facilitate subsequent license plate recognition and parking management operations. Its power supply device includes a rechargeable battery module and a solar charging module. It only activates the parking sensor when it senses that a vehicle has entered the roadside parking grid. The detection device involves relatively power-consuming devices such as photographing functions, so as to save the power consumption of the parking sensor device. When an artificial intelligence edge computing chip is installed in the camera module, it can also analyze and find the position of the license plate, capture the license plate image, and then form a small static image file for uploading to the cloud parking management platform. When a memory module is further installed in the parking sensing device, a parking video file can be generated to record the entire process of the vehicle entering the parking space. When the upload of the static image file fails or the license plate recognition fails, the parking video file is It can be extracted and used manually or automatically to supplement and log in the relevant parking status information and static image files, so as to facilitate the subsequent parking management and charging operations.

Description

Parking Sensing Device

The present invention mainly provides a sensing device applicable to a cloud parking management platform, especially a parking sensing device.

On-street parking is an open parking environment, which is completely different from the management method of off-street parking. The applicant has previously proposed an invention applied to on-street parking management, and applied for a domestic patent that was approved on record, such as: I624809 "Parking Billing System" and its operation method" and I662515 "Parking Billing System". To enable the management of on-street parking, it can be further implemented through the Internet of Things. The image of the vehicle inside the vehicle is captured and identified, and the toll management can be carried out by Bilibili. The relevant battery modules and wireless network modules are built into the parking meter, so that the installation of the smart parking meter can be completed quickly without burying power lines or network lines in the surrounding area. Construction is easier. In addition, the applicant has also filed another patent application for "parking billing and payment system and its backup method", which provides a smart parking meter with multiple parking sensors for parking management of multiple parking spaces The smart parking meter does not have to be set on the edge of the parking grid, it only needs to set the parking sensor on the edge of the parking grid, so that the setting position of the smart parking meter is more unrestricted and can save more money. The number of smart parking meters used.

The process of capturing vehicle images and uploading vehicle images to the system or network platform consumes the most power. The longer the camera used to capture vehicle images is turned on, or the larger the uploaded vehicle image, the more power is consumed. Especially when the smart parking meter and the parking sensor are installed separately, the parking sensor is implemented in a more compact form, and the power consumption management is more important.

The main purpose of the present invention is to provide a parking sensing device, which can effectively sense the parking state of a roadside parking space, and activate the parking sensing device only when a vehicle is detected entering the roadside parking space. Functions and other power-hungry devices, and accurately activate the timing of camera operation. In order to achieve the above-mentioned purpose, the parking sensing device of the present invention is installed on the edge of a parking grid on the roadside and is connected to a cloud parking management platform through a network, which includes: a control circuit; a detection element, which is electrically connected to A control circuit is used to detect whether a vehicle is parked in the parking grid, so as to generate a parking status information to the control circuit; a camera module is electrically connected to the control circuit, when the control circuit judges the parking grid according to the parking status information When a vehicle is parked, the control circuit controls the camera module to execute the procedure of turning on the camera to take pictures to obtain a static image file; a wireless transmission module is electrically connected to the control circuit to connect to the Internet and then park with the cloud The management platform is connected to the network, and uploads parking status information and static image files to the cloud parking management platform; and a power supply device, which is electrically connected to the control circuit to supply the power required for the operation of the parking sensing device. In this way, the timing of taking pictures of the camera module can be precisely controlled and unnecessary power consumption is reduced. Status information to facilitate subsequent parking management and charging operations.

During implementation, the camera module may further include an artificial intelligence edge computing chip, after the camera module performs the process of turning on the camera to take pictures, performs edge computing analysis and finds the license plate position A license plate image is obtained and a license plate image is obtained to form the static image file. In this way, only the license plate image is captured and uploaded to the cloud parking management platform, thereby greatly reducing the file size of the static image file and then uploading it, which not only saves network resources, but also reduces the storage space of the cloud parking management platform.

During implementation, a memory module electrically connected to the control circuit can be further arranged in the parking sensing device. When the camera module executes the procedure of turning on the camera to take pictures, the memory module performs synchronous image archiving to generate a parking video file. The parking video file records the complete picture including the vehicle starting to enter the parking space until the vehicle is fully parked; when the cloud parking management platform fails the license plate recognition process, the parking video file can be automatically captured to facilitate manual identification by management personnel. When the capacity of the memory module is insufficient, the latest parking video file can automatically overwrite the oldest parking video file in the memory module, and the latest parking video file is archived in a circular archiving manner. In addition, when the upload of the static image file fails, a mobile device with authorization is used to wirelessly connect to the parking sensing device, and read the static image file or the parking video file to obtain the parking status information and the static image file or parking video through the mobile device. The file is then uploaded to the cloud parking management platform.

During implementation, a photosensitive element electrically connected to the control circuit and a flashing light electrically connected to the control circuit can be further arranged in the parking sensing device. When the camera module executes the procedure of turning on the camera, the control circuit controls the photosensitive element to be The ambient light source is metered for the control circuit to determine whether the ambient light source is greater than a preset value, and when the control circuit determines that the ambient light source is less than the preset value, the flash is activated to fill in the light, such as at night, in poor weather or when the ambient light source is damaged. When shading, the fill light of the flash can be used to make the license plate image clearer and easier to identify.

When implemented, the power supply device includes a rechargeable battery module and a solar charging module for charging the rechargeable battery module, so as to convert the ambient light source into electricity usable for the parking sensing device.

During implementation, a waterproof case can be covered on the outside of the parking sensing device, the waterproof case is provided with a first waterproof window corresponding to the detection element, the waterproof case is provided with a second waterproof window corresponding to the camera module, and the solar charging module is exposed on the In addition to the waterproof case, the parking sensor device has the effect of dustproof and waterproof (for example, it meets the specifications of the international protection level certification IP68).

During implementation, the bottom of the waterproof case is provided with a fixing seat, the fixing seat is provided with a protection frame surrounding the periphery of the waterproof case, and the outer edge of the protection frame has an anti-slip slope, so that the parking sensing device is erected on the road or sidewalk. Safer when run over by car tires or stepped on by pedestrians, it can be used to distribute pressure and prevent damage to parking sensors.

During implementation, the parking sensing device may be disposed on a toll parking pole, so as to be integrated with the toll parking pole for implementation.

When implemented, the parking sensing device may further include a beacon receiving module electrically connected to the control circuit to receive the identification beacon, so as to facilitate identification and parking management of special vehicles.

During implementation, the detection element is a radar (Radar), a laser radar (Lidar) or an ultrasonic detector to detect whether a vehicle is parked in the parking compartment.

When implemented, the wireless transmission module is a WIFI device or a mobile communication device, so that the wireless transmission module can be connected to the Internet through a local area network, or connected to the Internet through a mobile communication network.

Compared with the prior art, the parking sensing device provided by the present invention can take pictures with low power consumption to generate static image files and upload them to the cloud parking management platform. In addition, it can also analyze and find the license plate position and license plate image capture program through edge computing, and only capture a small part of the file (license plate image) to form a static image file to provide parking status information and license plates to the cloud parking management platform. Video, to facilitate subsequent parking management and license plate recognition operations. A memory module is also arranged in the parking sensing device, and when the procedure of turning on the camera to take pictures is executed, the synchronous image archive can be performed to generate A parking video file to use the memory module to store the complete parking image. When the cloud parking management platform fails to perform license plate recognition on the license plate image (for example, when the license plate is not photographed or the license plate image is not clear), the cloud parking management platform can The complete parking video file is automatically captured, and the management personnel can perform manual identification, and the management personnel do not need to go to the parking site to investigate and take pictures, which can save a lot of manpower. Or when the upload of the static image file fails, you can also wirelessly connect to the parking sensing device through a mobile device with permission to obtain the same parking status information and supplementary login information of the static image file or parking video file through the mobile device and upload it to the parking sensor. Cloud parking management platform.

100: Parking grid

200: Cloud Parking Management Platform

300: Internet

10: Parking Sensing Device

11: Control circuit

12: Detection element

13: Camera Module

13a: AI edge computing chips

14: Wireless transmission module

15: Memory Module

16: Photosensitive element

17: Flash

18: Power supply unit

181: Rechargeable battery module

182: Solar charging module

183: Infrared charging module

19: Beacon receiving module

20: Smart Parking Meter

30: Waterproof case

31: Bottom box

32: upper cover

33: The first waterproof window

34: Second waterproof window

35: Fixed seat

36: Protective frame

361: Anti-slip slope

S1: No car state

S2: When a vehicle is parked

S3: Upload parking status information

S4: car status

S5: Turn on the camera to take pictures

S6: Edge operation analysis and find the license plate position

S7: license plate image capture

S8: Upload still image file

S9: License Plate Recognition

S10: Create parking management information

S11: Synchronized image archive

S12: Parking Video File

S13: Capture parking images

S14: Grab instruction

S15: Upload parking video file

S16: Manual license plate recognition

The first figure is a block diagram of the first embodiment of the present invention.

The second figure is a schematic diagram of the operation flow of connecting to the cloud management platform according to the first embodiment of the present invention.

The third figure is a schematic diagram of the setting environment of the first embodiment of the present invention.

The fourth figure is a three-dimensional appearance view of the first embodiment of the present invention.

Figure 5 is an exploded perspective view of the first embodiment of the present invention.

The sixth figure is a schematic diagram of the setting environment of the second embodiment of the present invention.

Please refer to Figures 1 to 3, which are a block diagram of the first embodiment of the present invention, a schematic diagram of an operation process of connecting to a cloud management platform, and a schematic diagram of the setting environment. The figures show that the parking sensing device 10 is installed on the road The edge of the side parking space 100. During implementation, a plurality of parking sensing devices 10 can be wirelessly connected to a smart parking meter 20 to perform parking management on a plurality of parking spaces 100 (as shown in the third figure). The parking sensing devices 10 can communicate through the smart parking meter 20 The relay is connected to the Internet 300, so that the sense of parking The testing device 10 can be connected to the cloud parking management platform 200 via a network. The settings of the above-mentioned cloud parking management platform 200 may vary according to different management and government units, and the related operation and connection methods, as well as the types of servers and the number of servers may be different. For example, the cloud parking management platform 200 can provide a data The transmission intermediary layer (DCU), the data transmission intermediary layer is also connected to the AI license plate recognition system, the background parking management system, the electronic ticket system, the banking system, and the third-party payment system to achieve the purpose of parking management.

The parking sensing device 10 includes a control circuit 11, a detection element 12 connected to the control circuit 11, a camera module 13, a wireless transmission module 14, a memory module 15, a photosensitive element 16, a flash 17, a power supply device 18, and a signal. Mark receiving module 19.

The control circuit 11 is not limited to be implemented on a single circuit board, and some of its control elements and wirings can also be dispersed in the detection element 12, the camera module 13, the wireless transmission module 14, the memory module 15, the photosensitive element 16, In the circuit of the flash 17 , the power supply device 18 or the beacon receiving module 19 .

The detection element 12 is used to detect the vehicle status of the parking grid 100 , and the detection element 12 can be a radar (Radar), a laser radar (Lidar) or an ultrasonic detector, so as to detect whether a vehicle is parked in the parking grid 100 or not. detect.

The camera module 13 has a built-in camera, which can generate a static image file after taking pictures of the parking space. The camera module 13 of this embodiment further includes an artificial intelligence edge computing chip 13a (Edge AI chip), which has the ability to The function of capturing the image of the license plate in the image by performing edge calculation on the photographed image, so that the generated static image file only contains the image of the license plate, so as to exclude the images other than the image of the license plate, thereby greatly reducing the file size of the static image file.

The wireless transmission module 14 is connected to the Internet 300 and then connected to the cloud parking management platform 200 , so that information can be transmitted between the parking sensing device 10 and the cloud parking management platform 200 . The wireless transmission module 14 can be a WIFI device or a mobile communication device (eg, a 4G communication device), so that there is no The line transmission module 14 can be connected to the Internet 300 through a local area network, or connected to the Internet 300 through a mobile communication network.

The memory module 15 performs synchronous image archiving on the pictures captured by the camera module 13 .

The photosensitive element 16 can measure the ambient light source when the camera module 13 is taking pictures, so that the control circuit 11 can determine whether the ambient light source is greater than a preset value, and activate the flash 17 to compensate when the ambient light source is less than the preset value. Light. The photosensitive element 16 and the flash 17 may be disposed adjacent to the detection element 12 or the camera module 13 during implementation, or directly integrated into the detection element 12 or the camera module 13 .

The power supply device 18 supplies the power required for the operation of the parking sensing device 10. The power supply device 18 includes a rechargeable battery module 181 and a solar charging module 182 for charging the rechargeable battery module 181 to convert ambient light sources into Power available for the parking sensing device 10 . In addition, during implementation, the power supply device 18 may further add an infrared charging module 183 to charge the rechargeable battery module 181 by means of infrared irradiation.

The beacon receiving module 19 is used to receive the identification beacons of special vehicles, in order to deal with the parking management of special vehicles, such as vehicles with disabled parking permits, or other regulations announced by the competent authority that are different from general on-street parking management rules For special vehicles, beacon transmitters (such as bluetooth beacons, Bluetooth beacon) can be set on the special vehicles during implementation to release the identification beacons of the special vehicles to the beacon receiving module 19 and upload them to the cloud parking management The platform 200 enables identification and parking management of special vehicles.

When the detection element 12 does not detect that the vehicle is parked, the cloud management platform 200 determines that the parking space 100 is in the no-vehicle state S1; when the detection element 12 detects that the vehicle is parked, S2, a parking state information is generated, And through the wireless transmission module 14 , the procedure of uploading the parking status information S3 is executed to the cloud parking management platform 200 , so that the cloud management platform 200 can know that the parking space 100 is in the vehicle state S4 .

The camera module 13, when the detection element 12 detects that a vehicle is parked in the parking space 100 S2, sequentially executes the procedures such as turning on the camera to take pictures S5, performing edge operation analysis and searching for the position of the license plate S6, and capturing the image of the license plate S7 and other procedures to obtain a The license plate image is formed into a static image file, and the static image file S8 is uploaded through the wireless transmission module 14, and the static image file is uploaded to the cloud parking management platform 200 to perform license plate recognition S9 on the static image file. If the license plate recognition S9 is successfully obtained After the vehicle number, the parking status information can be integrated into the cloud parking management platform 200 to execute the procedure of creating the parking management information S10. The basis for parking charges.

In this embodiment, the camera module 13 provided with the AI edge computing chip 13a is used as a representative description. If the camera module 13 is not provided with the AI edge computing chip 13a, or when the AI edge computing chip 13a is not activated, it is sufficient to The procedure of searching for the license plate position S6 and the license plate image capturing S7 is omitted, and the still image file S8 is formed directly with the picture obtained when the camera is turned on to take a picture S5, and the static image file S8 is uploaded through the wireless transmission module 14 to the cloud parking management platform 200, and the cloud parking management platform 200 performs the license plate recognition S9 program including the analysis, search and retrieval of the license plate position.

Secondly, when the camera module 13 turns on the camera to take pictures S5, the memory module 15 executes the procedure of synchronizing the image archive S11, so as to obtain a complete parking video file S12 during the entire parking process, which can record including the time when the vehicle starts to enter the parking space to Full picture of the vehicle parked. When the license plate recognition S9 fails and the vehicle number cannot be obtained, the cloud parking management platform 200 executes the procedure of capturing the parking image S13, so as to issue the capturing instruction S14 through the wireless transmission module 14, and capture the parking video file S12, Then, the procedure of uploading the parking video file S15 is executed, so that the management personnel of the cloud parking management platform 200 can perform manual license plate recognition S16 to confirm the vehicle number, so as to execute the procedure of creating the parking management information S10.

In addition, when the uploading or communication function of the parking sensing device 10 fails and the still image file S8 cannot be uploaded smoothly, the parking road video file S12 can also be sent to the corresponding parking bay by the management personnel when the uploading of the static image file S8 fails. At this point, use a mobile device with connection authority to wirelessly connect to the parking sensing device 10, and read the static image file S8 or the parking video file 12 to obtain supplementary registration information that is the same as the aforementioned parking status information, and then use the mobile device to supplement the registration. The information is uploaded to the cloud parking management platform 200 to execute the procedure of creating parking management information S10 to create complete parking management information corresponding to the vehicle number.

Please refer to FIG. 4 and FIG. 5, which are a three-dimensional appearance view and a three-dimensional exploded view of the first embodiment of the present invention. The figure shows that the exterior of the parking sensing device 10 is covered by a waterproof case 30 . The waterproof case 30 has a bottom box 31 and an upper cover 32 covering the bottom cover 31 . The bottom box 31 is provided with a corresponding detection element 12 . The first waterproof window 33 and the bottom box 31 are provided with a second waterproof window 34 corresponding to the camera module 13 , and the solar charging module 182 is exposed outside the waterproof case 30 , so that the parking sensing device 10 has the effect of dustproof and waterproof.

The bottom of the waterproof case 30 is provided with a fixed seat 35 , and a protective frame 36 is arranged on the fixed seat 35 to surround the periphery of the waterproof case 30 , and the outer edge of the protective frame 36 has an anti-slip slope 361 . In order to make the parking sensing device 10 more secure when erected on the road or sidewalk, it can be used to disperse the pressure and prevent the parking sensing device 10 from being damaged when it is run over by a car tire or stepped on by a pedestrian.

Please refer to FIG. 6, which are schematic diagrams of the setting environment of the second embodiment of the present invention. The difference between the second embodiment and the first embodiment is that the parking sensing device 10 is integrated on the toll parking pole 20. , during implementation, two parking sensing devices 10 can even be integrated into one toll parking pole 20 to detect two parking spaces 100 at the same time.

The above is only to illustrate the preferred embodiments of the present invention, not to limit the scope of implementation. All simple substitutions and equivalent changes made according to the scope of the patent application of the present invention and the content of the patent specification belong to the patent of the present invention. application category.

200…Cloud Parking Management Platform 300…Internet 10…Parking Sensing Device 11...Control circuit 12...detection element 13…Camera Module 13a…AI edge computing chips 14...Wireless transmission module 15…Memory Module 16…Photosensitive element 17…Flash 18…Power supply unit 181…Rechargeable battery module 182…Solar charging module 183…Infrared charging module 19…Beacon receiver module 20…Smart Parking Meter

Claims (10)

A parking sensing device is installed on the edge of a parking grid on the side of the road and is connected to a cloud parking management platform through a network, which comprises: a control circuit; a camera module is electrically connected to the control circuit, when the control circuit judges that the parking space has When the vehicle is parked, the control circuit controls the camera module to execute the procedure of opening the camera to take pictures to obtain a static image file. The camera module includes an artificial intelligence edge computing chip, and the camera module performs the process of opening the camera to take pictures. After the program, perform edge operation analysis and find the license plate position and license plate image capture program to obtain a license plate image to form the static image file; a wireless transmission module is electrically connected to the control circuit to connect to the Internet After the road is connected to the cloud parking management platform network, and upload the parking status information and the static image file to the cloud parking management platform; and a power supply device electrically connected to the control circuit for the parking sensing device For the power required for operation, the power supply device includes a rechargeable battery module and a solar charging module for charging the rechargeable battery module. The parking sensing device according to claim 1, further comprising a memory module electrically connected to the control circuit, when the camera module executes the procedure of turning on the camera to take pictures, the memory module performs synchronous image archiving to generate a parking video file. The parking sensing device according to claim 1, further comprising a photosensitive element electrically connected to the control circuit and a flashing light electrically connected to the control circuit, when the camera module executes the procedure of turning on the camera, The control circuit controls the photosensitive element to measure the ambient light source, so that the control circuit can determine whether the ambient light source is greater than a preset value, and when the control circuit determines that the ambient light source is less than the preset value, the flasher is activated to fill in light. The parking sensing device according to claim 1, wherein the exterior is covered by a waterproof case, the waterproof case is provided with a first waterproof window corresponding to the detection element, and the waterproof case is provided with a first waterproof window corresponding to the camera module In the second waterproof window, the at least one solar charging module is exposed outside the waterproof casing. According to the parking sensing device of claim 4, the bottom of the waterproof case is provided with a fixing seat, the fixing seat is provided with a protection frame surrounding the periphery of the waterproof case, and the outer edge of the protection frame has an anti-slip slope. The parking sensing device according to claim 1, which is provided on a toll parking pole. The parking sensing device of claim 1, wherein the power supply device further comprises an infrared charging module. The parking sensing device according to claim 1, further comprising a beacon receiving module electrically connected to the control circuit to receive an identification beacon. The parking sensing device according to claim 1, wherein the detection element is a radar, a laser radar or an ultrasonic detector. The parking sensing device according to claim 1, wherein the wireless transmission module is a WIFI device or a mobile communication device.

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