Intelligent parking system based on beidou satellite positioning

Abstract

The utility model discloses a kind of intelligent park system of wisdom park based on big dipper satellite positioning, it is related to intelligent parking technical field, and includes vehicle terminal, cloud server terminal and parking lot parking space data acquisition and transmission terminal;Through the design of image recognition system, for recording the information of vehicle in and out, and vehicle information is transmitted to cloud server terminal, vehicle owner views vehicle information and nearby parking space condition through vehicle terminal, again utilize cloud server, infrared induction design, through big dipper satellite positioning fusion satellite positioning etc. Technology, for the vehicle in the signal coverage range of big dipper satellite positioning according to the principle of nearest distribution, first entering first distribution, and send parking position information to vehicle terminal, can guide vehicle to enter available parking space, simultaneously, the vehicle entering parking space is implemented identity identification, can better solve the phenomenon of parking space snatching, be conducive to realizing sequential parking, promote the construction of wisdom city.

Description

Technical Field

[0001] This utility model belongs to the field of smart park intelligent parking technology, and in particular relates to a smart park intelligent parking system based on Beidou satellite positioning. Background Technology

[0002] Smart parks encompass industrial parks, commercial parks, logistics parks, urban industrial parks, science and technology parks, and creative parks. With the development of 5G technology, 5G base stations are also being deployed in smart parks. However, with the increasing number of vehicles, finding a suitable parking space is becoming increasingly difficult. Often, drivers arrive at their workplace only to find no parking available nearby, requiring them to search elsewhere, wasting considerable time. Furthermore, parking elsewhere exacerbates the shortage of parking spaces at the corresponding workplace, indicating a lack of rational planning.

[0003] With the increasing number of vehicles, parking spaces are becoming increasingly scarce. Drivers often don't know the exact location of available spaces, sometimes having to drive around the entire parking lot to find one. Furthermore, when there are many vehicles, available spaces are difficult to spot, leading to frequent missed opportunities. Additionally, the shortage of parking spaces often results in drivers scrambling for spots. In the process of strengthening smart city construction, it is necessary to regulate this uncivilized behavior and promote orderly parking. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a smart parking system for smart parks based on Beidou satellite positioning, which addresses the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0006] A smart parking system for smart parks based on BeiDou satellite positioning includes an on-board terminal, a cloud server terminal, and a parking space data collection and transmission terminal; the on-board terminal and the cloud server terminal are connected, and the cloud server terminal is connected to the parking space data collection and transmission terminal.

[0007] The parking space data acquisition and transmission terminal includes a Beidou satellite positioning unit, a license plate recognition unit, a controller module, a wireless transmission module, and a power supply module; the Beidou satellite positioning unit, the license plate recognition unit, the wireless transmission module, and the power supply module are respectively connected to the controller module; the license plate recognition unit includes an infrared sensor, an infrared camera, and a data cache module, the infrared sensor is connected to the controller module, and the infrared camera is connected to the controller module through the data cache module.

[0008] As a further preferred embodiment of the intelligent parking system for smart parks based on BeiDou satellite positioning of this utility model, the data cache module includes an input FIFO module, a DDR controller, an image parameter calculation module, a DDR2 SDRAM, and an output FIFO module. The output terminal of each image acquisition module is connected to the input terminal of the input FIFO module, the output terminal of the input FIFO module is connected to the input terminal of the DDR2 SDRAM, the output terminal of the DDR2 SDRAM is connected to the input terminal of the output FIFO module, the output terminal of the image parameter calculation module is also connected to the input terminal of the DDR2 SDRAM through the DDR controller, and the output terminal of the output FIFO module is connected to the input terminal of the main control module.

[0009] As a further preferred embodiment of the intelligent parking system for smart parks based on Beidou satellite positioning of this utility model, the infrared sensor includes resistor R5, resistor R6, sliding rheostat RV1, voltage comparator Q1, and infrared photoelectric module U3; wherein, one end of resistor R5 is connected to pin 1 of infrared photoelectric module U3, the other end of resistor R5 is connected to one end of resistor R6 and the positive power supply terminal of voltage comparator Q1, pin 2 of infrared photoelectric module U3 is grounded, pin 4 of infrared photoelectric module U3 is grounded, pin 5 of infrared photoelectric module U3 is connected to the other end of resistor R6 and the non-inverting input terminal of voltage comparator Q1, the inverting input terminal of voltage comparator Q1 is connected to pin 1 of sliding rheostat RV1, pin 2 of sliding rheostat RV1 is connected to VCC terminal, pin 3 of sliding rheostat RV1 is connected to the negative power supply terminal of voltage comparator Q1, and the output terminal of voltage comparator Q1 is connected to GD.

[0010] As a further preferred embodiment of the intelligent parking system for smart parks based on Beidou satellite positioning of this utility model, the power supply module includes a chip U1, a power supply B1, a capacitor C1, a capacitor C2, an inductor L1, and a Zener diode D1; wherein, pin 1 of chip U1 is connected to the positive terminal of power supply B1 and one end of capacitor C1 respectively, the negative terminal of power supply B1 is grounded, the other end of capacitor C1 is grounded, pin 3 of chip U1 is grounded, pin 5 of chip U1 is grounded, pin 2 of chip U1 is connected to the negative terminal of Zener diode D1 and one end of inductor L1 respectively, the positive terminal of Zener diode is grounded, the other end of inductor L1 is connected to one end of capacitor C2, pin 4 of chip U1, and the output terminal respectively, and the other end of capacitor C2 is grounded.

[0011] As a further preferred embodiment of the intelligent parking system for smart parks based on BeiDou satellite positioning of this utility model, the controller module includes chip U2, capacitors C3, C4, and C5, crystal oscillator X1, switch S1, resistors R1, R2, R3, and R4; wherein, one end of capacitor C3 is connected to one end of crystal oscillator X1 and pin 19 of chip U2, the other end of crystal oscillator X1 is connected to one end of capacitor C4 and pin 18 of chip U2, the other end of capacitor C3 is grounded, the other end of capacitor C4 is grounded, and one end of resistor R5 is connected to one end of capacitor C5, ... One end of switch S1 is connected to pin 9 of chip U2. The other end of resistor R5 is grounded. The other end of capacitor C5 is connected to VCC and the other end of switch S1 respectively. One end of resistor R1 is connected to pin 39 of chip U2 and the other end of resistor R1 is connected to VCC. One end of resistor R2 is connected to pin 38 of chip U2 and the other end of resistor R2 is connected to VCC. One end of resistor R3 is connected to pin 37 of chip U2 and the other end of resistor R3 is connected to VCC. One end of resistor R4 is connected to pin 36 of chip U2 and the other end of resistor R4 is connected to VCC.

[0012] As a further preferred embodiment of the intelligent parking system for smart parks based on BeiDou satellite positioning according to this utility model, the infrared photoelectric module U3 is model number TCRT5000.

[0013] As a further preferred embodiment of the intelligent parking system for smart parks based on BeiDou satellite positioning of this utility model, the chip U1 is model number LM2596.

[0014] As a further preferred embodiment of the intelligent parking system for smart parks based on BeiDou satellite positioning according to this utility model, the chip model of the wireless transmission module is nRF905.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0016] This utility model discloses a smart parking system for smart parks based on BeiDou satellite positioning, comprising an on-board terminal, a cloud server terminal, and a parking space data acquisition and transmission terminal. The parking space data acquisition and transmission terminal includes a BeiDou satellite positioning unit, a license plate recognition unit, a controller module, a wireless transmission module, and a power supply module. The license plate recognition unit includes an infrared sensor, an infrared camera, and a data cache module. This utility model, through the design of an image recognition system, records information about vehicles entering and exiting the parking lot and transmits this information to the cloud server terminal. Vehicle owners can view vehicle information and nearby parking space availability through the on-board terminal. Utilizing the cloud server and infrared sensing design, and through BeiDou satellite positioning fusion technology, parking spaces are allocated to vehicles within the BeiDou satellite positioning signal coverage area according to the principle of "nearest allocation, first-come, first-served," and the parking space location information is sent to the on-board terminal. This guides vehicles to available parking spaces and simultaneously identifies vehicles entering the parking spaces, effectively solving the problem of vying for parking spaces, promoting orderly parking, and contributing to the construction of smart cities. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a smart parking system for smart parks based on BeiDou satellite positioning, according to this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the parking space data acquisition and transmission terminal of this utility model;

[0019] Figure 3 This is a schematic diagram of the data caching module of this utility model;

[0020] Figure 4 This is the circuit diagram of the infrared sensor of this utility model;

[0021] Figure 5 This is the circuit diagram of the power supply module of this utility model;

[0022] Figure 6 This is the circuit diagram of the controller module of this utility model. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings:

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] A smart parking system for smart parks based on BeiDou satellite positioning, such as Figure 1 As shown, it includes an in-vehicle terminal, a cloud server terminal, and a parking space data collection and transmission terminal; the in-vehicle terminal and the cloud server terminal are connected, and the cloud server terminal is connected to the parking space data collection and transmission terminal.

[0026] like Figure 2 As shown, the parking space data acquisition and transmission terminal includes a Beidou satellite positioning unit, a license plate recognition unit, a controller module, a wireless transmission module, and a power supply module; the Beidou satellite positioning unit, the license plate recognition unit, the wireless transmission module, and the power supply module are respectively connected to the controller module; the license plate recognition unit includes an infrared sensor, an infrared camera, and a data cache module, the infrared sensor is connected to the controller module, and the infrared camera is connected to the controller module through the data cache module.

[0027] This invention utilizes an image recognition system to record information about vehicles entering and exiting the parking lot. This information is transmitted to a cloud server terminal, allowing vehicle owners to view vehicle information and nearby parking availability via their in-vehicle terminals. By combining cloud server and infrared sensing technologies with BeiDou satellite positioning, vehicles within the BeiDou satellite positioning signal coverage area are allocated parking spaces according to the principle of "nearest allocation, first-come, first-served." The parking space location information is then sent to the in-vehicle terminal, guiding vehicles to available spaces. Simultaneously, vehicle identification is performed upon entry, effectively addressing the problem of vying for parking spaces and promoting orderly parking, thus contributing to the construction of smart cities.

[0028] like Figure 3 As shown, the data buffer module includes an input FIFO module, a DDR controller, an image parameter calculation module, a DDR2 SDRAM, and an output FIFO module. The output of each image acquisition module is connected to the input of the input FIFO module, the output of the input FIFO module is connected to the input of the DDR2 SDRAM, the output of the DDR2 SDRAM is connected to the input of the output FIFO module, the output of the image parameter calculation module is also connected to the input of the DDR2 SDRAM through the DDR controller, and the output of the output FIFO module is connected to the input of the main control module.

[0029] The FIFO module is mainly used to solve the problems of inconsistent data bit width and mismatched data transmission speed between modules. DDR2 is mainly used to meet the requirements of high-speed and large-capacity data caching. The data transmission module uses Gigabit Ethernet to send image data to the host computer software in jumbo frame format for real-time display.

[0030] This utility model's data caching module adopts a three-level data caching mechanism, utilizing the high-efficiency read / write performance of the internal FIFO and the large-capacity external DDR2 storage to form a complementary advantage in speed and capacity (time and space), which well meets the performance requirements of high-speed image data transmission systems for image data transmission.

[0031] like Figure 4 As shown, the infrared sensor includes resistor R5, resistor R6, sliding rheostat RV1, voltage comparator Q1, and infrared photoelectric module U3. One end of resistor R5 is connected to pin 1 of infrared photoelectric module U3, and the other end of resistor R5 is connected to one end of resistor R6 and the positive power supply terminal of voltage comparator Q1. Pin 2 and pin 4 of infrared photoelectric module U3 are grounded. Pin 5 of infrared photoelectric module U3 is connected to the other end of resistor R6 and the non-inverting input terminal of voltage comparator Q1. The inverting input terminal of voltage comparator Q1 is connected to pin 1 of sliding rheostat RV1. Pin 2 of sliding rheostat RV1 is connected to the VCC terminal. Pin 3 of sliding rheostat RV1 is connected to the negative power supply terminal of voltage comparator Q1. The output terminal of voltage comparator Q1 is connected to GD.

[0032] like Figure 5 As shown, the power module includes a chip U1, a power supply B1, a capacitor C1, a capacitor C2, an inductor L1, and a Zener diode D1. Pin 1 of chip U1 is connected to the positive terminal of power supply B1 and one end of capacitor C1, while the negative terminal of power supply B1 is grounded. The other end of capacitor C1 is grounded. Pin 3 and pin 5 of chip U1 are grounded. Pin 2 of chip U1 is connected to the negative terminal of Zener diode D1 and one end of inductor L1, while the positive terminal of Zener diode is grounded. The other end of inductor L1 is connected to one end of capacitor C2, pin 4 of chip U1, and the Output terminal, while the other end of capacitor C2 is grounded.

[0033] Considering that the microcontroller system and infrared sensor are powered by a +5V power supply, and each 18650 lithium battery has a nominal voltage of 3.7V, the LM2596 is a 3A current output buck switching integrated voltage regulator chip. It has a built-in 150kHz fixed-frequency oscillator and a 1.23V reference regulator, and features thermal shutdown protection, overcurrent protection, and overvoltage protection circuits. A stable and efficient voltage regulator circuit module can be constructed using this chip and a very small number of external components such as capacitors and resistors. The LM2596 has excellent linearity and load regulation characteristics, providing fixed outputs of 3.3V, 5V, and 12V, and adjustable outputs from 0 to 37V. Therefore, the power supply module is constructed using 18650 lithium batteries, the LM2596, and a few external components. Three 18650 lithium batteries are connected in series to obtain approximately +12V DC voltage, which is then regulated by the adjustable voltage chip LM2596 to output +5V.

[0034] like Figure 6 As shown, the controller module includes chip U2, capacitors C3, C4, and C5, crystal oscillator X1, switch S1, and resistors R1, R2, R3, and R4. One end of capacitor C3 is connected to one end of crystal oscillator X1 and pin 19 of chip U2. The other end of crystal oscillator X1 is connected to one end of capacitor C4 and pin 18 of chip U2. The other end of capacitor C3 and capacitor C4 are grounded. One end of resistor R5 is connected to one end of capacitor C5, one end of switch S1, and pin 9 of chip U2. Connect the other end of resistor R5 to ground, connect the other end of capacitor C5 to VCC and the other end of switch S1 respectively, connect one end of resistor R1 to pin 39 of chip U2 and the other end of resistor R1 to VCC, connect one end of resistor R2 to pin 38 of chip U2 and the other end of resistor R2 to VCC, connect one end of resistor R3 to pin 37 of chip U2 and the other end of resistor R3 to VCC, connect one end of resistor R4 to pin 36 of chip U2 and the other end of resistor R4 to VCC.

[0035] The core component of the control module of this system is the STC89C52 microcontroller. The STC89C52 belongs to the 51 series of microcontrollers, and compared to other 51 series microcontrollers such as the STC89C51, it has advantages such as low power consumption, high operating speed, ISP in-system programming capability, strong anti-interference ability, and two 16-bit programmable timer / counters.

[0036] Furthermore, the STC89C52 instruction set is fully compatible with the general 51 series microcontroller instruction set. It contains 8KB of Flash program storage and 512 bytes of random access memory (RAM), and its price is relatively low. The peripheral circuitry of its minimum system is simple. Through multiple experiments, test results show that the STC89C52's processing speed and accuracy fully meet the requirements of the intelligent line-following car system.

[0037] Preferably, the infrared photoelectric module U3 is model TCRT5000.

[0038] The chip U1 is model number LM2596.

[0039] The chip model of the wireless transmission module is nRF905.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A smart parking system for smart parks based on BeiDou satellite positioning, characterized in that: It includes an in-vehicle terminal, a cloud server terminal, and a parking space data collection and transmission terminal; the in-vehicle terminal and the cloud server terminal are connected, and the cloud server terminal is connected to the parking space data collection and transmission terminal. The parking space data acquisition and transmission terminal includes a Beidou satellite positioning unit, a license plate recognition unit, a controller module, a wireless transmission module, and a power supply module; the Beidou satellite positioning unit, the license plate recognition unit, the wireless transmission module, and the power supply module are respectively connected to the controller module; the license plate recognition unit includes an infrared sensor, an infrared camera, and a data cache module, the infrared sensor is connected to the controller module, and the infrared camera is connected to the controller module through the data cache module.

2. The intelligent parking system for smart parks based on BeiDou satellite positioning according to claim 1, characterized in that: The data caching module includes an input FIFO module, a DDR controller, an image parameter calculation module, a DDR2 SDRAM, and an output FIFO module. The output of the infrared camera is connected to the input of the input FIFO module, the output of the input FIFO module is connected to the input of the DDR2 SDRAM, the output of the DDR2 SDRAM is connected to the input of the output FIFO module, the output of the image parameter calculation module is also connected to the input of the DDR2 SDRAM through the DDR controller, and the output of the output FIFO module is connected to the input of the main control module.

3. The intelligent parking system for smart parks based on BeiDou satellite positioning according to claim 1, characterized in that: The infrared sensor includes resistor R5, resistor R6, sliding rheostat RV1, voltage comparator Q1, and infrared photoelectric module U3. One end of resistor R5 is connected to pin 1 of infrared photoelectric module U3, and the other end of resistor R5 is connected to one end of resistor R6 and the positive power supply terminal of voltage comparator Q1. Pin 2 and pin 4 of infrared photoelectric module U3 are grounded. Pin 5 of infrared photoelectric module U3 is connected to the other end of resistor R6 and the non-inverting input terminal of voltage comparator Q1. The inverting input terminal of voltage comparator Q1 is connected to pin 1 of sliding rheostat RV1. Pin 2 of sliding rheostat RV1 is connected to the VCC terminal, and pin 3 of sliding rheostat RV1 is connected to the negative power supply terminal of voltage comparator Q1. The output terminal of voltage comparator Q1 is connected to GD.

4. The intelligent parking system for smart parks based on BeiDou satellite positioning according to claim 1, characterized in that: The power module includes a chip U1, a power supply B1, a capacitor C1, a capacitor C2, an inductor L1, and a Zener diode D1. Pin 1 of chip U1 is connected to the positive terminal of power supply B1 and one end of capacitor C1. The negative terminal of power supply B1 is grounded, and the other end of capacitor C1 is grounded. Pin 3 and pin 5 of chip U1 are grounded. Pin 2 of chip U1 is connected to the negative terminal of Zener diode D1 and one end of inductor L1. The positive terminal of Zener diode is grounded. The other end of inductor L1 is connected to one end of capacitor C2, pin 4 of chip U1, and the output terminal. The other end of capacitor C2 is grounded.

5. A smart parking system for smart parks based on BeiDou satellite positioning according to claim 1, characterized in that: The controller module includes chip U2, capacitors C3, C4, and C5, crystal oscillator X1, switch S1, resistors R1, R2, R3, and R4. in One end of capacitor C3 is connected to one end of crystal oscillator X1 and pin 19 of chip U2. The other end of crystal oscillator X1 is connected to one end of capacitor C4 and pin 18 of chip U2. The other end of capacitor C3 is grounded. The other end of capacitor C4 is grounded. One end of resistor R5 is connected to one end of capacitor C5, one end of switch S1, and pin 9 of chip U2. The other end of resistor R5 is grounded. The other end of capacitor C5 is connected to VCC and the other end of switch S1. One end of resistor R1 is connected to pin 39 of chip U2 and the other end of resistor R1 is connected to VCC. One end of resistor R2 is connected to pin 38 of chip U2 and the other end of resistor R2 is connected to VCC. One end of resistor R3 is connected to pin 37 of chip U2 and the other end of resistor R3 is connected to VCC. One end of resistor R4 is connected to pin 36 of chip U2 and the other end of resistor R4 is connected to VCC.

6. A smart parking system for smart parks based on BeiDou satellite positioning according to claim 3, characterized in that: The infrared optoelectronic module U3 is model TCRT5000.

7. A smart parking system for smart parks based on BeiDou satellite positioning according to claim 4, characterized in that: The chip U1 is model number LM2596.

8. The intelligent parking system for smart parks based on BeiDou satellite positioning according to claim 1, characterized in that: The chip model of the wireless transmission module is nRF905.

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