CN220509475U

CN220509475U - Charging pile parking space management device

Info

Publication number: CN220509475U
Application number: CN202322174117.9U
Authority: CN
Inventors: 刘小超
Original assignee: Chengdu I See Tech Information Technology Co ltd
Current assignee: Chengdu I See Tech Information Technology Co ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-02-20
Anticipated expiration: 2033-08-14

Abstract

The utility model belongs to the technical field of parking space management, and discloses a charging pile parking space management device, which comprises: the light supplementing lamp panel is provided with a light supplementing lamp circuit; the system comprises an IO control board, a power management module, a communication module, a ground sensing detection circuit and a barrier gate control circuit, wherein the ground sensing detection circuit is used for detecting the in and out of a vehicle; the barrier gate control circuit is used for controlling the opening and the falling of the barrier gate; the vehicle parking lock comprises a core plate, wherein a main control chip and an image sensor are arranged on the core plate, the main control chip is used for recognizing a vehicle number plate through a vehicle image acquired by the image sensor, judging whether a vehicle is a fuel vehicle or a non-fuel vehicle, and controlling a parking lock to fall through a communication module when the vehicle is the non-fuel vehicle. According to the charging pile parking space management device, the fuel oil vehicle is prevented from entering illegal occupation by identifying vehicle information and combining parking space lock control.

Description

Charging pile parking space management device

Technical Field

The utility model belongs to the technical field of parking space management, and particularly relates to a charging pile parking space management device.

Background

With the high-speed growth of new energy automobiles in China, the charging requirement of electric automobiles is continuously increased. However, in the actual operation process of the charging pile station, a large amount of parking spaces are occupied by fuel vehicles in a gratuitous manner, and new energy automobile owners are difficult to park, so that a series of problems of large waste of idle charging space resources, low utilization rate and the like are caused.

Disclosure of Invention

The present utility model aims to solve the above technical problems at least to some extent. Therefore, the utility model aims to provide a charging pile parking space management device.

The technical scheme adopted by the utility model is as follows:

fill electric pile parking stall management device includes:

the light supplementing lamp panel is electrically connected with the core board, and a light supplementing lamp circuit is arranged on the light supplementing lamp panel;

the IO control board is electrically connected with the core board, and is provided with a power management module, a communication module, a ground sensing detection circuit and a barrier gate control circuit, wherein the ground sensing detection circuit is used for detecting the in and out of a vehicle; the barrier gate control circuit is used for controlling the opening and the falling of the barrier gate;

the vehicle parking lock comprises a core plate, wherein a main control chip and an image sensor are arranged on the core plate, the main control chip is used for recognizing a vehicle number plate through a vehicle image acquired by the image sensor, judging whether a vehicle is a fuel vehicle or a non-fuel vehicle, and controlling a parking lock to fall through a communication module when the vehicle is the non-fuel vehicle.

Preferably, the power management module comprises a protection circuit and a DC-DC circuit, wherein the protection circuit comprises a Schottky diode D1 and a TVS diode D2; the DC-DC circuit is used for supplying power to the core board and the IO control board after the power supply is reduced.

Preferably, the communication module comprises a first RS485 circuit communicated with the display screen and a second RS485 circuit communicated with the parking spot lock.

Preferably, the communication module further comprises a Bluetooth circuit which is communicated with the parking spot lock.

Preferably, the main control chip is connected with the upper computer through a network interface, and the main control chip is connected with the loudspeaker through a power amplifying circuit.

Preferably, the network interface is an RJ45 interface.

Preferably, the IO control board, the core board and the light supplementing lamp board are stacked and mounted.

Preferably, the main control chip is SSC30KD, and the image sensor is SC501AI.

The beneficial effects of the utility model are as follows:

according to the charging pile parking space management device provided by the utility model, the vehicle information is identified, the parking space lock control and the voice alarm are combined, the illegal occupation of the fuel vehicle is stopped, the entrance and exit time of the vehicle is judged for the new energy vehicle entering the ground, the vehicle parking time is compared with the charging time length, the short charging and long stopping are solved, the user experience is ensured, and meanwhile, the problems of low charging pile utilization rate, occupation of the charging pile and the like are perfectly solved.

Drawings

Fig. 1 is a schematic block diagram of a charging pile parking space management device of the present utility model.

Fig. 2 is a circuit diagram of a main control chip of the present utility model.

Fig. 3 is a circuit diagram of an image sensor of the present utility model.

Fig. 4 is a schematic diagram of the protection circuit of the present utility model.

Fig. 5 is a circuit diagram of a portion of a DC-DC circuit of the present utility model.

Fig. 6 is another partial circuit diagram of the DC-DC circuit of the present utility model.

Fig. 7 is a circuit diagram of yet another portion of the DC-DC circuit of the present utility model.

Fig. 8 is a circuit diagram of yet another portion of the DC-DC circuit of the present utility model.

Fig. 9 is a schematic diagram of a first RS485 circuit of the utility model.

Fig. 10 is a schematic diagram of a second RS485 circuit of the utility model.

FIG. 11 is a schematic diagram of a local sense detection circuit of the present utility model.

FIG. 12 is a circuit diagram of a portion of the barrier control circuit of the present utility model.

FIG. 13 is a circuit diagram of another portion of the barrier control circuit of the present utility model.

Fig. 14 is a circuit diagram of a portion of a power amplifying circuit of the present utility model.

Fig. 15 is another partial circuit diagram of the power amplifying circuit of the present utility model.

Fig. 16 is a schematic diagram of an RJ45 interface of the present utility model.

Fig. 17 is a schematic diagram of a light supplement lamp circuit of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should also be appreciated that in the embodiments, the functions/acts may occur in a different order than the figures. For example, two figures shown in succession may in fact be executed substantially concurrently or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.

As shown in fig. 1, the charging pile parking space management device of the embodiment comprises a light supplementing lamp plate, an IO control plate and a core plate, wherein the core plate is connected with the light supplementing lamp plate and the IO control plate respectively.

The core board is provided with a main control chip and an image sensor, as shown in fig. 2, the main control chip adopts SSC30KD, which is SSC33X series chip of SigmaStar company, resolution 5MP@30FPS, 1Gb DDR is built in, and 0.5T AI calculation power is provided. The chip is a highly integrated multimedia system-on-chip (SoC) product, and is suitable for high-resolution intelligent video recording applications such as an IP camera, a vehicle-mounted camera, a USB camera and the like. Comprises a 32-bit single-core RISC processor, an advanced Image Signal Processor (ISP), a high-performance MJPEG/H.264/H.265 video encoder, a Deep Learning Accelerator (DLA) and an Intelligent Video Engine (IVE) which are used as high-speed I/O interfaces such as MIPI, ethernet and the like.

As shown in fig. 3, the image sensor employs SC501AI, which is a 3K-level image sensor product newly introduced by the company sitwiki.

The IO control board is provided with a power management module, a communication module, a ground sensing detection circuit, a barrier gate control circuit, a network interface and a power amplification circuit, wherein the power management module comprises a protection circuit and a DC-DC circuit, as shown in fig. 4, after power is input, the power is firstly transmitted through the protection circuit and then is transmitted through a Schottky diode, and the protection circuit comprises a Schottky diode D1 and a TVS diode D2. The schottky diode conducts electricity unidirectionally and can prevent reverse connection of a power supply. When the TVS diode is impacted by reverse transient high energy, the high resistance between the two electrodes is immediately reduced to low resistance at the speed of 10-12 seconds in a short time, the surge power of thousands of watts is absorbed, the voltage clamping element between the two electrodes is at a preset voltage value, and the precise components in the electronic circuit are effectively protected.

After passing through the protection circuit, the power supply is divided into two parts for respectively supplying power to the core board and the IO control board. The power supply of the core board is divided into six paths, and proper working voltages are respectively provided for the main control chip and the image sensor. The 12V voltage is converted into 3.3V voltage through a DC-DC circuit, and the 3.3V voltage is supplied to a main control chip for IO ports and peripheral equipment. The chip selected by the circuit is SY8120, the chip synchronously rectifies, an external diode is not needed, the area of the PCB is effectively reduced, and the related circuit is shown in figure 5.

The 3.3V voltage output by the upper stage is converted into 1.8V voltage through a DC-DC circuit, and the 1.8V voltage is supplied to the main control chip for the auxiliary circuit. The chip selected by the circuit is SM8081, the chip rectifies synchronously, no external diode is needed, the area of the PCB is effectively reduced, and the related circuit is shown in figure 6.

The 3.3V voltage output by the upper stage is converted into 1.5V voltage through a DC-DC circuit, and the 1.5V voltage is supplied to the main control chip and used for an internal RAM circuit. The chip selected by the circuit is SM8081, the chip rectifies synchronously, no external diode is needed, the area of the PCB is effectively reduced, and the related circuit is shown in figure 7.

The 3.3V voltage output by the upper stage is converted into about 1.0V voltage through a DC-DC circuit, and the voltage is supplied to the main control chip and used for an internal core circuit. The chip selected by the circuit is SM8082, and is controlled to be conducted through a mos tube, so that different resistor configurations are realized, and four groups of different voltages of 0.855V,0.9V,0.957V and 1.002V can be output for adjusting the working frequency of the chip. The associated circuitry is shown in fig. 8.

The communication module comprises a first RS485 circuit which is communicated with the display screen, and as shown in fig. 9, the first RS485 circuit is communicated with the display screen to display vehicle information, charging time length, charging amount and the like in real time. RS485 is half duplex communication, but in this circuit application, only need one-way communication, the one-way data transmission of charging pile camera to the display screen promptly, so only connect the transmission control line can, the fixed mode that sets up of enabling end, retrench the circuit, improve product stability. The RS-485 transceiver chip uses SP3485, is a high-speed transceiver, can support communication rate up to 10Mbps, adopts a differential signal transmission mode, has extremely strong common mode interference resistance, and supports multi-point data communication.

Since the 485 receiver differential input to ground common mode voltage allows a range of-7V to 12V, overvoltage transients beyond this range may damage the device. To protect 485 chips, a special electrostatic suppressor SM712 is used, which has an asymmetric breakdown voltage of unique characteristics +13.3V and-7.5V, matching the +12V to-7V transceiver common mode range of RS-485 chips, to provide optimal protection.

As shown in fig. 10, the communication module further includes a second RS485 circuit for the parking space lock to communicate. And the second RS485 circuit is communicated with the parking space lock to control the parking space lock to rise and fall. When the main control chip recognizes the vehicle license plate through the vehicle image acquired by the image sensor, the vehicle is judged to be a fuel vehicle or a non-fuel vehicle, and the parking space lock is controlled to fall through the communication module when the vehicle is the non-fuel vehicle, so that the occupation of the fuel vehicle is prevented.

RS485 is half duplex communication, i.e. only one channel, transmitting signals from either a to B or B to a at the same time, and not simultaneously bi-directionally. Therefore, the RS485 interface chip needs a "transmit-receive switch" signal to control whether the interface chip is currently in a transmitting state or a receiving state. An additional GPIO is needed to control the switching of the receiving and transmitting states in the system, but the IO port resource of the camera is relatively tense, so an automatic receiving and transmitting switching circuit is adopted, and the working principle is as follows:

1. when the UART transmit pin usart_txd outputs a low level, the transistor Q5 is turned off, the reception enable #re and the transmission enable DE are pulled high at the same time, and the interface chip enters a transmit state. At this time, the low level connected to the transmission signal pin DI is transmitted, so that an output corresponding to the logic low level is obtained on the differential output RS485_a/RS 485_b.

2. When the usart_txd pin sends high level, the triode Q5 is turned on, the receiving enable #re and the sending enable DE are pulled down simultaneously, the interface chip enters a receiving state, and the two pins A, B are in high resistance state. However, the other network nodes connected to the RS485_a/RS485_b will interpret the high resistance state of the RS485_a/RS485_b as high level due to the pull-up and pull-down action of the resistors R2 and R5. Therefore, although the signal of usart_tx is not directly transmitted to RS485_a/RS485_b, the function of transmitting data and automatically controlling the switching of the transmitting and receiving states is logically achieved at the same time.

Similar to the first RS485 circuit, the RS-485 receiving and transmitting chip in the second RS485 circuit uses SP3485, and the electrostatic protection chip also uses SM712, so that the 485 circuit can work stably for a long time.

In order to facilitate certain special places, the parking space lock is installed and can not be grooved and laid, the communication module further comprises a Bluetooth circuit communicated with the parking space lock, and the parking space lock is controlled through Bluetooth communication. The Bluetooth chip of the Bluetooth circuit adopts ESP32-S3 newly manufactured by Lexin company, and the chip is carried32-bit LX7 dual coreThe main frequency of the processor is up to 240MHz, and the processor is internally provided with 512KBSRAM and supports 2.4GHzwi-Fi and low-power consumption Bluetooth dual-mode wireless communication.

As shown in fig. 11, the ground sensing detection circuit is implemented by an optocoupler circuit, and can be used for ground sensing detection of vehicle in and out. The ground induction coil is buried under the lane, and when the vehicle passes through, a signal is triggered. In order to protect the main control chip, an optical coupler is adopted for isolation.

As shown in fig. 12 and 13, the barrier gate control circuit is implemented by using two independent relays, and can be used for controlling the opening and the falling of the barrier gate.

As shown in fig. 14 and 15, the main control chip is connected to the speaker through a power amplifying circuit. The main control chip SSC30KD supports the G.711 coding and decoding standard and the voice output function, and can be externally connected with a 10W loudspeaker through a power amplification circuit, so that the voice is flood and bright, and voice prompt and alarm for vehicles entering and exiting the ground are facilitated.

The power amplifier chip adopts NS4110B, is a class D audio power amplifier, has the efficiency of 92 percent, can achieve the output power of 10W, and does not need filtering. The built-in overcurrent protection, overheat protection and undervoltage protection functions can effectively protect the chip from being damaged under abnormal working conditions.

When the power amplification circuit works, the instantaneous current can reach 1.5A, so that the stable work of the power amplification circuit is ensured, other circuits are not influenced, and the power chip SY8120 is used for independently supplying power to the power amplification circuit.

The main control chip is connected with the upper computer through a network interface. As shown in fig. 16, the network interface is an RJ45 interface. The main control chip SSC30KD integrates the Ethernet MAC and PHY, so that the network communication circuit design is very simple, and the network communication circuit can communicate with an upper computer only by externally connecting RJ 45. The RJ45 interface supports a hot plug function, is easily damaged by static electricity, and is protected by a discharge tube P3100SC in design. The P3100SC semiconductor discharge tube is an overvoltage protection device, is manufactured by using a thyristor principle, is triggered to conduct and discharge by means of breakdown current of a PN junction, and can flow a large surge current or pulse current. The range of breakdown voltage constitutes the range of overvoltage protection.

And a light supplementing lamp circuit is arranged on the light supplementing lamp plate. As shown in fig. 17, the light-compensating lamp circuit controls the luminance by PWM, and the darker the surrounding environment, the stronger the light-compensating lamp luminance. In the environment with sufficient light, the light supplementing lamp is automatically turned off, so that energy is saved.

In order to reduce the PCB area, the light supplementing lamp plate, the core plate and the IO plate are stacked, and the copper studs are fixedly arranged on the shell.

The utility model is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present utility model, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present utility model, fall within the scope of protection of the present utility model.

Claims

1. Fill electric pile parking stall management device, its characterized in that includes:

2. The charging pile parking space management device according to claim 1, wherein: the power management module comprises a protection circuit and a DC-DC circuit, wherein the protection circuit comprises a Schottky diode D1 and a TVS diode D2; the DC-DC circuit is used for supplying power to the core board and the IO control board after the power supply is reduced.

3. The charging pile parking space management device according to claim 1, wherein: the communication module comprises a first RS485 circuit communicated with the display screen and a second RS485 circuit communicated with the parking space lock.

4. The charging pile parking space management device according to claim 1, wherein: the communication module further comprises a Bluetooth circuit which is communicated with the parking spot lock.

5. The charging pile parking space management device according to claim 1, wherein: the main control chip is connected with the upper computer through a network interface, and is connected with the loudspeaker through a power amplifying circuit.

6. The charging pile parking space management device according to claim 5, wherein: the network interface is an RJ45 interface.

7. The charging pile parking space management device according to claim 1, wherein: and the IO control board, the core board and the light supplementing lamp panel are stacked and installed.

8. The charging pile parking space management device according to any one of claims 1 to 7, characterized in that: the main control chip is SSC30KD, and the image sensor is SC501AI.