基于智能車位鎖的共享停車位管理系統(tǒng)研究與設(shè)計(jì)
[Abstract]:In recent years, the number of private cars in China is increasing rapidly, but the number of parking spaces is increasing slowly, and the problem of parking difficulties is becoming more and more serious. Relying on information technology to improve the utilization rate of parking space will be an important way to alleviate parking difficulties. The shared parking space management system based on intelligent parking lock is designed in this paper, which combines the Internet of things technology with the traditional parking space lock, and manages the private parking space and roadside parking space through the parking space lock equipment to realize the informatization of parking space. To provide a technical solution for the time-sharing of urban parking spaces. The intelligent parking lock controller can receive the command from the cloud server, realize the remote unlock function, at the same time, it can automatically detect whether the vehicle is leaving, and send the "car has left" message to the cloud server after the vehicle leaves. And automatically raise parking lock, waiting for the next open lock order. The intelligent parking lock uses the STM32 controller based on the Cortex-M3 kernel, which not only meets the current control performance requirements of the system, but also provides the hardware support for the on-line upgrade of the late system software. The GSM/GPRS module SIM800C, is used to realize the networking between parking lockers and cloud servers and the real time data transmission between the two sides. With regard to the security of parking lock-switch command, the source of the unlocking command is judged to prevent malware from unlocking SIM800C and supporting Bluetooth 3.0. it provides hardware support for controlling parking lock by Bluetooth in the later period. The lock-arm of parking space is driven by DC motor to lift up and down, and the position of lift and fall is detected by optoelectronic switch, which replaces the method of detecting the mechanical proximity switch, and improves the service life of the equipment. A small amplifier photoelectric sensor is used to detect the state of the vehicle in the parking space. The detection algorithm adopts the method of multiple sampling with interval pulses to ensure the accuracy of the detection and reduce the power consumption of the detector. The intelligent parking lock is powered by lead-acid colloidal battery. It optimizes the power consumption of the system from the aspects of hardware design and software operation, reduces the running power consumption of the parking space lock control system, and improves the service time and service life of the battery. In order to ensure the safe and reliable operation of the equipment, the method based on voltage detection is used to estimate the battery quantity. When the battery power is insufficient, it sends messages to users and maintainers to remind them to charge or replace the battery in time. Shared parking management system server software includes payment service website, parking space management system software and database. The payment service website connects to the third-party payment server, displays the QR code to the user, generates the order, and completes the payment. Parking space management system software connects smart parking lock, payment service website and database. This paper introduces the running principle of parking space management software and the realization process of parking service in detail. Finally, this paper summarizes the experience and lessons in the design and development of intelligent parking lock and shared parking space management system, and puts forward a reasonable plan for the improvement of its functional performance, so as to promote the system to better serve the sharing and management of urban parking spaces.
【學(xué)位授予單位】:山東大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:U491.7;U495
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