A multi-sensor wireless dental machine

Abstract

This invention provides a multi-sensor wireless dental scanner, comprising a housing and a vehicle identification component mounted on the housing. The identification component includes a detection head mounted on one side of the housing, a geomagnetic sensor disposed within the detection head capable of detecting changes in the magnetic field of a target area, a radar sensor electrically connected to the geomagnetic sensor capable of matching object information in the target area, and an image recognition module electrically connected to the radar sensor capable of image recognition of object information in the target area. Based on existing radar and image sensor technology architectures, this invention adds a geomagnetic sensor, using the change in magnetic field strength within the detection area relative to a baseline value to determine vehicle detection. This effectively addresses false detection problems caused by pedestrians and non-motorized vehicles obstructing the view, while also overcoming potential failures of radar and video systems under adverse weather conditions such as rain and snow, thereby significantly improving the accuracy and reliability of detection.

Description

Technical Field

[0001] This utility model relates to technical experience in vehicle testing equipment, and in particular to a multi-sensor wireless dental scanner. Background Technology

[0002] The curb-mounted parking space recorder is installed on the curb of the road. It records the entry and exit of vehicles and the status of the parking space (including whether it is vacant, occupied, or blocked by objects) in real time, and reports it to the service management center in the form of pictures and text. This helps the management unit manage the parking spaces, improve the turnover rate and parking efficiency, and also assists in collecting parking fees, thus alleviating the traffic impact caused by "parking difficulties".

[0003] In the traditional field of vehicle detection, the use of single environmental sensing devices (such as millimeter-wave radar, lidar, and cameras) is often affected by environmental factors, resulting in poor vehicle detection and recognition performance.

[0004] To address these issues, existing vehicle detection technologies typically integrate different types of sensors based on the principle of complementary advantages. For example, radar and image sensors are combined. Specifically, camera sensors are used to acquire visible light images, providing high accuracy in perceiving the shape and category of objects. Although lens-based perception and image processing technologies are relatively mature, they are susceptible to weather and environmental factors in practical applications, as well as the problem of false detections caused by pedestrians and non-motorized vehicles obstructing the view, making it difficult to accurately identify vehicles and resulting in frequent false alarms. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a multi-sensor wireless roadway machine to solve the problem that the existing roadway machine is difficult to accurately identify vehicles and frequently causes false alarms.

[0006] To achieve the above and other related objectives, this utility model provides a multi-sensor wireless dental machine, including a housing and an identification component disposed on the housing for identifying vehicles. The identification component includes a detection head disposed on one side of the housing, a geomagnetic sensor disposed inside the detection head for detecting changes in the magnetic field of a target area, a radar sensor electrically connected to the geomagnetic sensor for matching object information in the target area, and an image recognition module electrically connected to the radar sensor for image recognition of object information in the target area.

[0007] By adopting the above technical solution, a geomagnetic sensor is added to the existing radar and image sensor technology architecture. The change in magnetic field strength in the detection area relative to the baseline value is used to detect and judge vehicles. This can effectively deal with the false detection problem caused by pedestrians and non-motorized vehicles blocking the view. At the same time, it can overcome the failure problem that radar and video systems may fail under adverse weather conditions such as rain and snow, thereby significantly improving the accuracy and reliability of detection.

[0008] In one embodiment of this utility model, the side wall of the detection head is provided with an inclined mounting surface, the radar sensor and the image recognition module are correspondingly disposed on the mounting surface, and the geomagnetic sensor is built into the inside of the detection head.

[0009] By adopting the above technical solution, multiple sensors can be installed on the mounting surface of the detection head, enabling it to detect the target area. The geomagnetic sensor can be miniaturized and built into the detection head, eliminating the need for roadbed installation and simplifying construction. The radar sensor can dynamically monitor the parking space area covered by the mounting surface.

[0010] In one embodiment of the present invention, a power supply component for power supply is provided inside the housing. The power supply component includes a lithium battery disposed inside the housing, a solar panel disposed on the upper surface of the housing, and a solar converter connected to the solar panel to convert the current generated by the solar panel and transmit it to the lithium battery.

[0011] By adopting the above technical solution, the nonlinear current generated by the solar panel can be converted into a stable linear current through the solar controller to charge the lithium battery. When the charging voltage is higher than the protection voltage, the charging of the lithium battery is automatically turned off. When the voltage drops to the maintenance voltage, the lithium battery enters the float charging state. When it is lower than the recovery voltage, the float charging is turned off and the equalization charging state is entered. This realizes the solar charging of the lithium battery and the power supply of various components through the lithium battery. Moreover, the power supply components and the detection head are set up separately, making their spatial arrangement more reasonable.

[0012] In one embodiment of the present invention, the image recognition module includes a lens disposed on the mounting surface, an image sensor connected to the lens, and a processing chip disposed in the detection head.

[0013] By adopting the above technical solution, the lens and image sensor are used to acquire video images within the coverage area of ​​the camera lens; the image processing module is used to perform license plate recognition and parking space status recognition on the images output by the image sensor, and capture license plate images, vehicle entry and parking images, and parking space empty images to form a chain of image evidence.

[0014] In one embodiment of the present invention, the detection head is further provided with a wireless communication module, which includes a 4G module and a Wi-Fi module disposed on the detection head.

[0015] By adopting the above technical solutions, the license plate recognition information and captured image evidence chain output by the image recognition module can be transmitted to the on-street parking fee collection platform via the 4G module, or a hotspot service can be provided via the Wi-Fi module after the image recognition module is powered on. Mobile phones, tablets or laptops can connect to the hotspot via wireless network cards or WLAN modules to easily access the camera and obtain real-time video, captured images and debugging information.

[0016] In one embodiment of this utility model, a supplementary light and a berth status light are also provided on the mounting surface.

[0017] By adopting the above technical solution and setting up supplementary lighting, the image quality of the image recognition module is ensured, and parking space status lights are used to display parking space status information.

[0018] In one embodiment of this utility model, a baffle is also horizontally provided on the upper side of the mounting surface.

[0019] By adopting the above technical solution, it is easier for the lens to capture images of the target area.

[0020] In one embodiment of this utility model, the detection head is rotatably connected to the side wall of the housing.

[0021] By adopting the above technical solution, the detection area can be adjusted by rotating the detection head, making it easier to install and use.

[0022] In one embodiment of this utility model, the radar sensor is a millimeter-wave radar or a lidar.

[0023] As described above, the multi-sensor wireless dental machine of this invention has the following beneficial effects:

[0024] 1. Make full use of solar energy and reduce operating costs: In open areas with plenty of sunshine, the solar panels installed on the top can generate electricity independently without the need for frequent battery replacements, thereby greatly reducing labor and operating costs.

[0025] 2. Convenient construction and accelerated project progress: No need to damage the road surface for power supply or wiring. It can be easily deployed simply by installing it on the road surface or the top surface of the curb, which effectively shortens the project construction time.

[0026] 3. Optimize space utilization and improve energy efficiency: By cleverly installing solar panels on the top of the equipment, the top space is maximized, which not only improves energy efficiency but also maintains the compactness of the equipment;

[0027] 4. Intelligent detection, reduced energy consumption: Using geomagnetic and radar technology to accurately determine vehicle entry and exit, compared with traditional video evidence collection methods, it not only significantly reduces processing time, but also significantly reduces power consumption;

[0028] 5. Precise filtering improves detection accuracy: The application of geomagnetic technology enables the system to effectively distinguish between pedestrians and non-motorized vehicles, avoiding false detections. At the same time, it can still work stably in severe weather conditions such as rain and snow, solving the problem of radar and image sensor failure.

[0029] 6. Fast startup and reduced camera power consumption: The camera uses a high-performance CPU chip, which can start up and begin capturing images within seconds. This not only reduces the camera's power consumption, but also captures images of vehicles entering and exiting in real time, reducing customer complaints.

[0030] 7. Supports WiFi hotspots to improve operation and maintenance efficiency: The device has a built-in WiFi hotspot function, allowing mobile phones, computers and other devices to access it at any time, which provides great convenience for operation and maintenance personnel and further improves operation and maintenance efficiency. Attached Figure Description

[0031] Figure 1 The diagram shown is a schematic representation of the overall structure disclosed in the embodiments of this utility model.

[0032] Component designation explanation

[0033] 1. Housing; 2. Detection head; 3. Geomagnetic sensor; 4. Radar sensor; 5. Image recognition module; 6. Mounting surface; 7. Edge; 8. Wireless communication module; 9. Lithium battery; 10. Solar panel; 11. Solar controller; 12. Supplemental lighting; 13. Berth status light. Detailed Implementation

[0034] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0035] Please see Figure 1 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0036] like Figure 1As shown, this utility model provides a multi-sensor wireless dental scanner, comprising a housing 1, an identification component disposed on the housing 1 for identifying vehicles, the identification component including a detection head 2 disposed on one side of the housing 1, a geomagnetic sensor 3 disposed inside the detection head 2 for detecting changes in the magnetic field of the target area, a radar sensor 4 electrically connected to the geomagnetic sensor 3 for matching object information in the target area, and an image recognition module 5 electrically connected to the radar sensor 4 for image recognition of object information in the target area.

[0037] The detection head 2 is rotatably connected to one side of the housing 1. The side wall of the detection head 2 is provided with an inclined mounting surface 6, which is set in a vertical direction. The radar sensor 4 and the image recognition module 5 are correspondingly set on the mounting surface 6. The geomagnetic sensor 3 is built into the detection head 2. A baffle 7 is also horizontally set on the upper side of the mounting surface 6.

[0038] Radar sensor 4 and electromagnetic sensor detect the presence or absence of a vehicle by monitoring changes in the energy value and magnetic field strength of radar objects in the berth. When a vehicle enters and occupies a berth, or when a vehicle leaves the berth and the berth becomes vacant, image recognition module 5 is activated. Radar sensor 4 is a millimeter-wave radar or lidar.

[0039] The image recognition module 5 includes a lens mounted on the mounting surface 6, an image sensor connected to the lens, and a processing chip located inside the detection head 2. The lens is mounted on the mounting surface 6, and a supplementary light 12 and a berthing status light 13 are also located below the lens.

[0040] The lens and image sensor are used to acquire video images within the coverage area of ​​the camera lens; the image processing module is used to perform license plate recognition and parking space status recognition on the images output by the image sensor, and capture images of license plates, vehicles entering and stopping, and empty parking spaces to form a chain of image evidence.

[0041] The detection head 2 is also equipped with a wireless communication module 8, which includes a 4G module and a Wi-Fi module. The 4G module is used to transmit the license plate recognition information and the captured image evidence chain output by the camera to the on-street parking fee collection platform.

[0042] The on-street parking fee collection platform is used to calculate the parking fee for vehicles with corresponding license plates based on occupancy information and license plate recognition information.

[0043] The Wi-Fi module provides a hotspot service after the image recognition module is activated. Portable devices such as mobile phones, tablets, or laptops can connect to the hotspot via wireless network cards or the WLAN module to easily access the camera, obtain real-time video, capture images, and obtain debugging information.

[0044] The housing 1 is equipped with a power supply component for power supply. The power supply component includes a lithium battery 9 disposed in the housing 1, a solar panel 10 disposed on the upper surface of the housing 1, and a solar converter connected to the solar panel 10 to convert the current generated by the solar panel 10 and send it to the lithium battery 9.

[0045] The solar controller 11 is used to convert the nonlinear current generated by the solar panel 10 into a stable linear current to charge the lithium battery 9. When the charging voltage is higher than the protection voltage, the charging of the lithium battery 9 is automatically turned off. When the voltage drops to the maintenance voltage, the lithium battery 9 enters the float charging state. When it is lower than the recovery voltage, the float charging is turned off and the battery enters the equalization charging state.

[0046] The lithium battery 9 is used to power the radar sensor 4, the geomagnetic sensor 3, the image recognition module 5, the wireless communication module 8, the supplementary light 12, and the berth status light 13.

[0047] When a vehicle enters, the geomagnetic sensor 3 detects that the change in the magnetic field within the target area exceeds the default threshold, and then the radar sensor 4 is activated.

[0048] After radar sensor 4 continuously monitors an object that has stayed for more than 30 seconds and whose size matches the car, it activates image recognition module 5.

[0049] The image recognition module 5 confirms the license plate number and the wheel crossing the line status. After the data from the three sensors are consistent, they are uploaded to the management platform.

[0050] Upon departure, the geomagnetic field returns to its initial state, radar sensor 4 detects the object's movement trajectory, and image recognition module 5 captures a second image to complete the billing loop.

[0051] The radar sensor 4, the geomagnetic sensor 3, and the image recognition module 5 are integrated into the curb machine housing 1 and the detection head 2. The dustproof and waterproof design is suitable for roadside installation scenarios.

[0052] Low-power collaborative solution: The geomagnetic sensor 3 serves as a resident trigger unit, while the radar sensor 4 and the image recognition module 5 are woken up on demand, reducing overall energy consumption.

[0053] Optimized spatial layout: The housing 1 and the detection head 2 are set up as separate modules, and the power supply component and the identification component are set up separately, so that the geomagnetic module is miniaturized and built into the detection head 2, which does not need to be installed on the roadbed, simplifying construction;

[0054] The millimeter-wave radar is tilted and mounted on the head of the device to provide dynamic monitoring of the parking space area.

[0055] Within the image recognition module 5, the lens can adopt wide-angle and upward angles, and combined with AI distortion correction algorithms, it can solve the blind spots in close-up shooting.

[0056] Within the image recognition module 5, the processing chip can deploy a lightweight CNN model to achieve license plate recognition and parking space occupancy status judgment (vacant / parked beyond time limit / object encroachment), reducing reliance on the cloud.

[0057] In summary, this invention, based on existing radar and image sensor technology architecture, adds a geomagnetic sensor 3. By detecting the change in magnetic field strength within the detection area relative to a baseline value, it can determine vehicle detection. This effectively addresses false detection caused by pedestrians and non-motorized vehicles obstructing the view, and overcomes potential failures of radar and video systems under adverse weather conditions such as rain and snow, thus significantly improving detection accuracy and reliability. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0058] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A multi-sensor wireless key device comprising a housing, an identification assembly provided on the housing for identifying a vehicle, characterized in that, The identification component includes a detection head disposed on one side of the housing, a geomagnetic sensor disposed inside the detection head that can detect changes in the magnetic field of the target area, a radar sensor that is electrically connected to the geomagnetic sensor and can match the object information of the target area, and an image recognition module that is electrically connected to the radar sensor and can recognize the object information of the target area.

2. The multi-sensor wireless dental machine according to claim 1, characterized in that: The detection head has an inclined mounting surface on its side wall. The radar sensor and the image recognition module are respectively mounted on the mounting surface, and the geomagnetic sensor is built into the detection head.

3. The multi-sensor wireless dental machine according to claim 1, characterized in that: The housing is equipped with a power supply component for power supply. The power supply component includes a lithium battery disposed inside the housing, a solar panel disposed on the upper surface of the housing, and a solar converter connected to the solar panel to convert the current generated by the solar panel and send it to the lithium battery.

4. The multi-sensor wireless dental machine according to claim 2, characterized in that: The image recognition module includes a lens mounted on the mounting surface, an image sensor connected to the lens, and a processing chip located inside the detection head.

5. The multi-sensor wireless dental machine according to claim 1, characterized in that: The detection head is also equipped with a wireless communication module, which includes a 4G module and a Wi-Fi module.

6. The multi-sensor wireless dental machine according to claim 2, characterized in that: The mounting surface is also equipped with supplementary lighting and berth status lights.

7. The multi-sensor wireless dental machine according to claim 2, characterized in that: A retaining edge is also horizontally provided on the upper side of the mounting surface.

8. The multi-sensor wireless dental machine according to claim 1, characterized in that: The detection head is rotatably connected to the side wall of the housing.

9. The multi-sensor wireless dental machine according to claim 1, characterized in that: The radar sensor is a millimeter-wave radar or a lidar.

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