Parking space detection device

Abstract

The utility model provides a parking space detection device, which is characterized in that a device body comprises a bottom wall and a plurality of side walls connected with the bottom wall, the bottom wall and the plurality of side walls enclose an accommodating cavity, the side walls are recessed towards the accommodating cavity to form a groove, a probe device is positioned in the groove, a protective sleeve is arranged in the groove, and the protective sleeve is sleeved on the probe device. The probe device comprises a front-facing camera with 800W pixels, a left camera with 400W pixels and a right camera with 400W pixels, the front-facing camera is arranged on one side wall, the left camera and the right camera are respectively arranged on the left side wall and the right side wall of the front-facing camera, the cover plate is fixed at one end of the opening of the device body, and the cover plate seals the accommodating cavity. The three cameras can monitor the idle and busy states of the parking spaces in real time and can cover a plurality of parking spaces for real-time detection, the detection efficiency is improved, the probe device is not prone to damage, the probe device can be further protected and prevented from being affected by abnormal conditions such as weather, and the detection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parking space detection, in particular to a parking space detection device.

Background Art

[0002] The existing parking space detection technology basically adopts a single camera, which can only identify a small number of parking spaces with poor recognition. Moreover, the camera probe is exposed outside the parking space detection device, making it easy to be damaged. When applied in outdoor and roadside large venues, it is easily affected by abnormal weather, which affects the function of the camera and thus reduces the detection and recognition effect.

[0003] In view of this, it is necessary to provide a new type of parking space detection device to overcome the above defects.

Content of the Utility Model

[0004] The purpose of the utility model is to provide a parking space detection device that can identify more parking spaces, protect the probe device, and improve the detection and recognition effect.

[0005] To achieve the above purpose, the utility model provides a parking space detection device, which includes a device body with one end open, a cover plate located above the device body, and a probe device arranged on the device body; the device body includes a bottom wall and several side walls connecting the bottom wall, the bottom wall and the several side walls enclose a receiving cavity, the side walls are recessed towards the direction close to the receiving cavity to form grooves, the probe device is located in the grooves, a protective sleeve is arranged in the grooves, and the protective sleeve is sleeved on the probe device; the probe device includes a front camera with 8 million pixels, a left camera with 4 million pixels, and a right camera with 4 million pixels, the front camera is arranged on one of the side walls, and the left camera and the right camera are respectively arranged on the side walls on the left and right sides of the front camera; the cover plate is fixed at the open end of the device body, and the cover plate seals the receiving cavity.

[0006] In a preferred embodiment, the probe device is inclined towards the direction close to the lower part of the side wall, and the included angle between the probe device and the vertical direction is 40 - 60 degrees.

[0007] In a preferred embodiment, the protective sleeve includes a fixing part and a hollow protective part extending from the fixing part towards the direction away from the side wall, the fixing part is fixed in the groove, the probe device is located in the hollow structure of the protective part, and the end of the protective part away from the fixing part extends beyond the probe device.

[0008] In a preferred embodiment, the edge of the cover plate extends towards the direction close to the probe device to form an outer edge, the included angle between the outer edge and the cover plate is greater than 90 degrees, and the outer edge covers the probe device.

[0009] In a preferred embodiment, a connecting post is provided on one side of the cover plate away from the device body, and a thread is provided inside the connecting post.

[0010] In a preferred embodiment, a control board is housed in the receiving cavity. The control board is connected to the front camera, the left camera, and the right camera, and the control board is also connected to the ultrasonic component.

[0011] In a preferred embodiment, the control board is also connected to a voice collection component and a voice broadcast component.

[0012] In a preferred embodiment, the control board is also connected to a 4G communication module and a Bluetooth communication module.

[0013] In a preferred embodiment, the control board is connected with a tail wire, and the tail wire includes a network connector, an external light connector, a power connector, and a serial port connector.

[0014] In a preferred embodiment, the control board is connected to the camera at the parking space through the network connector, the control board is connected to the LED indicator light through the external light connector, and the control board is connected to the parking space guiding sign in the lane through the serial port connector.

[0015] Compared with the prior art, for the parking space detection device provided by the present utility model, the device body includes a bottom wall and several side walls connected to the bottom wall. The bottom wall and the several side walls enclose a receiving cavity. The side walls are recessed towards the direction close to the receiving cavity to form grooves. The probe device is located in the grooves, and a protective sleeve is provided in the grooves. The protective sleeve is sleeved on the probe device. The probe device includes a front camera with 8 million pixels, a left camera with 4 million pixels, and a right camera with 4 million pixels. The front camera is provided on one of the side walls, and the left camera and the right camera are respectively provided on the side walls on the left and right sides of the front camera. The cover plate is fixed at the open end of the device body, and the cover plate seals the receiving cavity. With such a design, the three cameras can monitor the busy and idle state of the parking space in real time, and can cover multiple parking spaces for real-time detection, improving the detection efficiency. The probe device will not be exposed outside the device body, and the probe device is not easily damaged. The protective sleeve is sleeved on the probe device, which can further protect the probe device and prevent the probe device from being affected by abnormal situations such as weather, improving the detection effect.

Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0017] Figure 1 This is a three-dimensional structure diagram of the parking space detection device provided by the present utility model.

[0018] Figure 2 This is a planar structure diagram of the parking space detection device provided by the present utility model.

[0019] Figure 3 This is a schematic block diagram of the control board in the parking space detection device.

[0020] Figure 4 This is a structure diagram of the tail wire connected to the control board in the parking space detection device.

[0021] Figure 5 This is a schematic wiring diagram of the external lamp connector of the tail wire.

Specific Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] Please refer to Figure 1 , which is a three-dimensional structure diagram of the parking space detection device 100 provided by the present utility model. The parking space detection device 100 provided by the present utility model can identify more parking spaces, can protect the probe device, and improve the detection and recognition effect.

[0024] Please refer to it together Figure 2, which is a plan view structure diagram of the parking space detection device 100 provided by the present utility model. The parking space detection device 100 includes a device body 10 with an open end, a cover plate 20 located above the device body, and a probe device 30 provided on the device body. The device body 10 includes a bottom wall 11 and a plurality of side walls 12 connecting the bottom wall 11. The bottom wall 11 and the plurality of side walls 12 enclose a receiving cavity. The side wall 12 is recessed towards the direction close to the receiving cavity to form a groove 121. The probe device 30 is located in the groove 121, and a protective sleeve 13 is provided in the groove 121. The protective sleeve 13 is sleeved on the probe device 30. The probe device 30 includes a front camera 31 with 8 million pixels, a left camera 32 with 4 million pixels, and a right camera 33 with 4 million pixels. The front camera 31 is provided on one of the side walls 12, and the left camera 32 and the right camera 33 are respectively provided on the side walls 12 on the left and right sides of the front camera 31. The cover plate 20 is fixed at the open end of the device body 10, and the cover plate 20 seals the receiving cavity.

[0025] Specifically, the probe device 30 includes a front camera 31 with 8 million pixels, a left camera 32 with 4 million pixels, and a right camera 33 with 4 million pixels. Three high-definition cameras are adopted, and the three high-definition cameras are respectively in the front, left, and right directions. The three-way cameras can monitor the busy and idle state of the parking space in real time, and can cover multiple parking spaces for real-time detection. Through reasonable position deployment, up to 12 parking spaces can be detected, improving the detection efficiency. The three cameras can be night vision cameras, which is beneficial to obtaining the picture at the parking space when the light is insufficient to achieve parking space detection. Moreover, the probe device 30 is arranged in the groove 121 of the side wall 12 of the device body 10, so that the probe device 30 will not be exposed outside the device body, and the probe device 30 is not easily damaged. A protective sleeve 13 is also provided in the groove 121. The protective sleeve 13 is sleeved on the probe device 30, which can further protect the probe device and avoid the probe device being affected by abnormal conditions such as weather, improving the detection effect.

[0026] Therefore, for the parking space detection device 100 provided by the present utility model, the device body 10 includes a bottom wall 11 and a plurality of side walls 12 connected to the bottom wall 11. The bottom wall 11 and the plurality of side walls 12 enclose a receiving cavity. The side walls 12 are recessed towards the direction close to the receiving cavity to form grooves 121. The probe device 20 is located in the grooves 121. A protective sleeve 13 is provided in the grooves 121. The protective sleeve 13 is sleeved on the probe device 30. The probe device 30 includes a front camera 31 with 8 million pixels, a left camera 32 with 4 million pixels, and a right camera 33 with 4 million pixels. The front camera 31 is arranged on one of the side walls. The left camera 32 and the right camera 33 are respectively arranged on the side walls 12 on the left and right sides of the front camera 31. The cover plate 20 is fixed at one end of the opening of the device body 10, and the cover plate 20 seals the receiving cavity. With such a design, the three cameras can monitor the busy and idle state of the parking space in real time, and can cover multiple parking spaces for real-time detection, improving the detection efficiency. The probe device 30 is not exposed outside the device body, and the probe device 30 is not easily damaged. The protective sleeve 13 is sleeved on the probe device 30, which can further protect the probe device and prevent the probe device from being affected by abnormal situations such as weather, improving the detection effect.

[0027] In some embodiments, the probe device 30 is inclined towards the direction close to the lower part of the side wall 12, and the included angle between the probe device 30 and the vertical direction is 40 - 60 degrees. Specifically, the parking space detection device is usually installed at a high place, such as an installation rod more than 10 meters above the ground. The front camera 31, the left camera 32, and the right camera 33 all incline downwards, which is beneficial to improving the detection view angle of the three cameras and can cover more parking spaces. Preferably, the included angle between the probe device 30 and the vertical direction is 50 degrees.

[0028] In some embodiments, the protective sleeve 13 includes a fixing part 131 and a hollow protective part 132 extending from the fixing part 131 towards the direction away from the side wall 12. The fixing part 131 is fixed in the groove 121. The probe device 30 is located in the hollow structure of the protective part 132, and the end of the protective part 132 away from the fixing part 131 extends beyond the probe device 30. It can be understood that setting the fixing part 131 fixed in the groove 121 can enhance the connection stability between the protective sleeve 13 and the side wall 12, and the protective part 132 extending beyond the probe device 30 can better protect the probe device 30 and prevent the probe device from being damaged in an abnormal environment.

[0029] In some embodiments, an outer edge 21 is formed by extending the edge of the cover plate 20 towards the probe device 30. The angle between the outer edge 21 and the cover plate 20 is greater than 90 degrees, and the outer edge 21 covers the probe device 30. It can be understood that the angle between the outer edge 21 and the cover plate 20 is greater than 90 degrees and less than 180 degrees. The setting of the outer edge 21 can cover the probe device 30 to prevent rain or sunlight from contaminating the probe device 30.

[0030] Furthermore, a connecting post 22 is provided on the side of the cover plate 20 away from the device body 30. A thread 221 is provided inside the connecting post 22, and the thread 221 is used to install the detection device. With the threaded installation method, the detection device is convenient to disassemble and assemble. Specifically, the cover plate 20, the outer edge 21, and the connecting post 22 can be integrally formed.

[0031] Please refer to Figure 3 which is a schematic block diagram of the control board in the parking space detection device. A control board 40 is housed in the receiving cavity. The control board 40 is connected to the front camera 31, the left camera 32, and the right camera 33. The control board 40 is also connected to an ultrasonic component 41, and the ultrasonic component may specifically include an ultrasonic sensor for sensing whether there is a vehicle or foreign object in the parking space. In this embodiment, the control board is further connected to a voice collection component 42 and a voice broadcast component 43. The voice collection component may include a microphone for recording prompt voices, and the voice broadcast component may include a speaker for playing prompt voices. The control board is also connected to a 4G communication module 44 and a Bluetooth communication module 45 for communicating with a parking space lock, a parking space guiding sign, etc.

[0032] Please refer to Figure 4, which is a structural diagram of the tail wire connected to the control board in the parking space detection device. The control board 40 is connected with a tail wire 46, and the tail wire 46 includes a network connector 461, an external light connector 462, a power connector 463, and a serial port connector 464. Specifically, there are two network connectors 461, labeled LAN1 and LAN2. The network connector 461 supports 10 - 100 Mbps Ethernet transmission, supports bypass, and supports POE charging. The RJ45 interfaces labeled LAN1 / LAN2 in the device tail wire are the camera Ethernet network interfaces, used to transmit camera control commands, captured image results, and video streams. The default factory IP address of the camera is 192.168.1.100, the user name is admin, and the password is admin. Users can view images and configure camera parameters through a web browser. There are three external light connectors 462, labeled LED1, LED2, and LED3, which are connected to external indicator lights, providing 5V power supply and light control for the external indicator lights, and supporting the models of external indicator lights. The tail wire has this interface. The standard working voltage of the power connector 463 is DC12V / 1A, and it supports a wide range of voltages from DC 9 - 36V. The serial port connector 464 is RS485, which is connected to the parking space guide sign in the lane to provide RS485 data inter - transmission.

[0033] Please refer to Figure 5 , which is the wiring schematic diagram of the external light connector of the tail wire. Each external light connector includes 5V, R, G, and B terminals. The 5V terminal is connected to the 5V terminal of the external light tail wire to supply power to the external light; the R / G / B terminals are sequentially connected to the R / G / B terminals on the external light tail wire port to control the light color.

[0034] It can be understood that the existing technologies of parking space cameras basically only recognize three - space and six - space parking spaces, and the recognition effect outdoors is poor. Either the recognition effect is low, or the device's waterproof performance cannot reach IP66, and it can only be used in underground parking lots. The detection and recognition in outdoor and roadside large - scale occasions and the alarm of occupied parking spaces cannot be effectively solved. Moreover, most of them have only a single detection method, either video detection or ultrasonic detection. By monitoring parking occupancy through a camera, the situation of the parking space is displayed in real - time, and it is ensured that the camera can work normally under any weather conditions. The defect is that there may be a visual blind area when the vehicle is parked, and there may also be a certain delay in signal transmission and data update; ultrasonic parking guidance is a technology that uses ultrasonic waves. Since the ultrasonic parking guidance system mainly relies on sensors on the parking space, if the sensor is damaged or the parking space situation is misdetected, the system may malfunction, making the device unable to operate normally.

[0035] The parking space detection device 100 provided by the present utility model integrates an 800W night vision high-definition detection device, is equipped with a large model algorithm, synchronizes three cameras, ensures that the cameras can work normally under any weather conditions, and there are no blind spots in the field of vision. It can detect up to 12 parking spaces at the same time. Moreover, an ultrasonic foreign object positioning device is installed. When the video probe malfunctions, the ultrasonic wave can be immediately used to detect the situation of the parking space, playing an auxiliary occupancy role. It integrates a Bluetooth chip, a 4G module, and a universal voice chip, ensuring that when the wired network is disconnected, it can switch to 4G communication, and the Bluetooth chip assists the indoor Bluetooth navigation system to quickly find the car. This Bluetooth positioning device can intuitively provide users with the location and availability information of the parking space. When the car owner needs to park, they can view the situation of the vacant parking spaces through the display screen or the mobile application, and select a suitable parking space for parking. When the parking is incorrect, the front-end device emits a self-defined voice alarm for prompt.

[0036] The parking space detection device 100 has a night vision high-definition imaging effect. The parking space intelligent camera is equipped with 800W, 4 million for three imaging, and an ultrasonic component detection hybrid solution, providing maximum foreign object detection, video images, and picture output. It supports wireless control unlocking, Bluetooth control unlocking, and RS485 control unlocking, and has a text-to-speech universal voice alarm broadcast. It has a strong operating environment, can detect the status of indoor and outdoor parking spaces, and has complete adaptability to light scenarios such as night, day, front light, and backlight. It can not only meet the license plate recognition requirements, but also provide clearer details of the vehicle head and vehicle logo, and the vehicle type status helps the algorithm to better identify.

[0037] It has high-precision parking space detection and scene-based algorithms. The comprehensive license plate recognition rate is 99.8%. It supports the recognition of ordinary blue license plates, single- and double-layer yellow license plates, large new energy vehicle license plates, small new energy vehicle license plates, supports the distinction of A and B fields, single- and double-layer police license plates, single- and double-layer armed police license plates, single- and double-layer military license plates, embassy license plates, consulate license plates, coach license plates, etc. for the license plate numbers, colors, etc. In typical scenarios, the mainstream license plate recognition rate is as high as 99.9%.

[0038] It can change the light for alarm prompt, and the voice broadcast accuracy rate reaches 99.8%. The large model algorithm is updated and improved in real time online, and there is a database for all things recognition, greatly improving the continuous iteration and update of the usage scenarios.

[0039] It can realize all-round perception of scene-based events, such as detecting events like parking on the line, non-white list vehicle occupancy, foreign object occupancy, personnel staying, tracking and analyzing the movement trajectory of animals, and occupancy alarm, with an extreme design combination form.

[0040] It can accurately guide the single-eye camera to support an external indicator light, realizing a 1:1 accurate guide between the indicator light and the parking space. The parking space detection has full coverage without dead angle defects. The three-eye camera can cover 12 parking spaces, and the two side cameras support a maximum angle of 120° wide video exploration through fish-eye lenses.

[0041] It can simplify deployment and support standard POE and non-standard POE. Non-standard POE can support up to 30 cameras hand in hand, solving the problem of high on-site wiring costs in current projects.

[0042] It has a variety of indicator light control modes. In complex corner scenes, it can achieve no-dead-angle coverage of parking spaces through sharing of recognition data and indicator lights between cameras. Bluetooth beacons support car-finding navigation assistance, and cooperate with Bluetooth ground locks and parking space whitelists to realize refined operations such as exclusive parking spaces and parking space reservations. It also has unmanned and efficient operations: it can identify abnormal events such as non-whitelisted vehicles, parking on the line, foreign objects occupying spaces, and stranded personnel, and provide timely voice reminders and event push notifications to improve parking space utilization and operational efficiency.

[0043] The parking space detection device provided by the utility model has the following advantages:

[0044] 1. This hybrid parking probe alarm recognition and alarm solution effectively solves the existing cameras on the market that only support three or six parking spaces detection at most. It can support up to 12 parking spaces detection without the defect of blind angle of video viewing angle, thus improving the usability of the product;

[0045] 2. This hybrid parking probe alarm recognition can be used not only indoors but also outdoors. It has a strong recognition effect and a low probability of recognition errors. It integrates a large model algorithm for all things recognition to avoid the situation where the product is not recognized due to the emergence of new objects, effectively improving the product's online self-improvement function and enhancing the product's ability to learn independently;

[0046] 3. This hybrid parking probe alarm recognition opens up the hybrid detection scheme of video detection and ultrasonic detection, allowing the two types of detection to run synchronously, greatly increasing the fault tolerance mechanism, 4G wireless communication, and Bluetooth positioning technology, which will play an underlying role in the basic construction of data for the promotion of unmanned driving in the future.

[0047] In summary, the parking space detection device provided by the present utility model is a new type of parking space detection hybrid detection voice alarm device, which can effectively realize real-time monitoring of the busy and idle status of parking spaces, use lights to guide the vehicle owner to find a parking space, and perform real-time alarm functions after identifying abnormal events such as non-whitelist vehicles, parking across the line, foreign object occupancy, and personnel retention. It can detect up to 12 parking spaces at most. It integrates an ultrasonic detection built-in device, three real-time high-definition cameras, front, left, and right three-way, and is connected to the parking space lock in real time through the RS485 protocol. The Bluetooth parking space lock wireless communication gate opening device covers 12 parking spaces for real-time detection and real-time control. The alarm accuracy rate for foreign objects and personnel can reach 99.8%, and the alarm accuracy rate for the movement trajectories of electric bicycles, bicycles, and animals can reach 99.5%. It effectively solves the situation where the basement parking space is occupied by other foreign objects, plays a role in avoiding and prompting, cooperates with the black box in the background to transmit data in real time, and gives mobile phone apps, phone prompts, WeChat official account pushes, and text message prompts to quickly inform the parking space management personnel of the occupancy situation of the parking space and quickly respond to solve the occupancy problem, avoiding the situation where social parking spaces cannot be effectively utilized and causing traffic congestion on the road conditions. At the same time, the front-end detection and alarm device flashes lights and gives voice alarms to warn the vehicle owner, occupancy personnel, and animals of the occupancy. The voice prompt integrates a universal voice module, and the alarm broadcast content can be customized.

[0048] The parking space detection device integrates a high-brightness parking space status indicator, which can display seven colors of red, green, yellow, blue, magenta, cyan, and white in real time. The colors for occupied and unoccupied parking spaces can be customized, as well as the front-end alarm voice prompt. It supports universal voice broadcast, and text settings can be directly converted into voice broadcasts. The male and female voices can be set and switched. It realizes video acquisition, vehicle detection, license plate recognition, data transmission, high-definition video, low power consumption, high performance, and high stability. It integrates a large model algorithm inside the device, continuously autonomously learns and optimizes the algorithm for the set alarm foreign objects, improves the large model base, and maximally meets the diverse needs of the market and users for product functions. It is applicable to large commercial parking lots such as office buildings, shopping centers, and commercial complexes. The industrial-grade outdoor equipment can be used completely outdoors, and the installation height needs to be more than 10 meters. It solves the situation of foreign objects and animals occupying parking spaces by the roadside, realizes efficient and intelligent parking operation, and the recognition rate can reach 98% and the alarm rate can reach 99.5% even in a relatively dark or lightless environment.

[0049] The above is only the implementation mode of the present utility model, and it does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.

Claims

1. A parking space detection device, characterized in that, It includes a device body with one end open, a cover plate located above the device body, and a probe device provided on the device body; the device body includes a bottom wall and several side walls connecting the bottom wall, the bottom wall and the several side walls enclose a receiving cavity, the side walls are recessed towards the direction close to the receiving cavity to form grooves, the probe device is located in the grooves, a protective sleeve is provided in the grooves, and the protective sleeve is sleeved on the probe device; the probe device includes a front camera with 8 million pixels, a left camera with 4 million pixels, and a right camera with 4 million pixels, the front camera is provided on one of the side walls, and the left camera and the right camera are respectively provided on the side walls on the left and right sides of the front camera; the cover plate is fixed at the open end of the device body, and the cover plate seals the receiving cavity.

2. The parking space detection device according to claim 1, characterized in that The probe device is inclined towards the direction close to the lower part of the side wall, and the included angle between the probe device and the vertical direction is 40-60 degrees.

3. The parking space detection device according to claim 1, characterized in that The protective sleeve includes a fixing part and a hollow protective part extending from the fixing part towards the direction away from the side wall, the fixing part is fixed in the groove, the probe device is located in the hollow structure of the protective part, and one end of the protective part away from the fixing part extends beyond the probe device.

4. The parking space detection device according to claim 1, characterized in that The edge of the cover plate extends towards the direction close to the probe device to form an outer edge, the included angle between the outer edge and the cover plate is greater than 90 degrees, and the outer edge covers the probe device.

5. The parking space detection device according to any one of claims 1-4, characterized in that A connecting column is provided on the side of the cover plate away from the device body, and a thread is provided inside the connecting column.

6. The parking space detection device according to claim 1, characterized in that A control board is received in the receiving cavity, the control board is connected to the front camera, the left camera, and the right camera, and the control board is also connected to an ultrasonic component.

7. The parking space detection device according to claim 6, characterized in that, The control board is also connected to a voice collection component and a voice broadcast component.

8. The parking space detection device according to claim 6, wherein The control board is also connected to a 4G communication module and a Bluetooth communication module.

9. The parking space detection device according to claim 6, characterized in that, The control board is connected with a tail wire, and the tail wire includes a network connector, an external light connector, a power connector, and a serial port connector.

10. The parking space detection device according to claim 9, characterized in that, The control board is connected to the camera at the parking space through the network connector, the control board is connected to the LED indicator light through the external light connector, and the control board is connected to the parking space guiding sign in the lane through the serial port connector.

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