The Research and Implement of the Intelligent Parking Reservation Management System Based on ZigBee Technology

Cui Shiyao, Wu Ming, Liu Chen, Rong Na School of Information Science and Engineering, University of Jinan,

Shandong Provincial Key Laboratory of Network Based Intelligent Computing, Jinan, Shandong, 250022, Chinaise_cuisyy@163.com

Abstract With the rapid development of economy and the improvement of city modernization level, traffic congestion and parking have become serious social problems due tothe explosive growth of the per capita amount of vehicle. Sothis paper put forward the design and implementation of smart parking system trying to solve the parking problem.The bottom part of this system is composed of ZigBee network which sent pressure information to PC through a coordinator and then update database. The application layer can quickly get the parking information through the Internet, and use advantages of Webservice to gather all the scattered parking information to bring convenience to the people who want to get a parking position.

Keywords- ZigBee ;Webservice; android; Database

I. INTRODUCTION Parking problem becomes more and more universal

among most cities in our country, this not only disturbed most motorists and the broad masses of pedestrians, at the same time also caused great impact on public transport and urban order. However, drivers still cannot achieve parking information in time in the case of there have enough parking space, lead to the parking big but useless". Difficulty in obtaining parking space has caused extensive concern of the society from all walks of life, researches on how to solve the parking problems have great relationship to the people's quality of life and the establishment of a harmonious society, so obtaining parking information timely and publishing the empty parking space information is of great social significance.

II. INTEGRATED DESIGNThe system composition principle is shown in figure 1,

consists of a mobile client and server side parking lot. Client request parking information to server through webservice interface, then parking lot server queries the database andreturn the parking information to client through web -service interface. The mobile clients keep real-time update status, to insure the accuracy and the validity of the transient information in the process. The parking lot internal server not only implement information scheduling and parking places state information acquisition, but also have aindependent management function, besides it is able to make summary of parking information, parking reserved, dynamic management, and other specific functions, to realize the digital and intelligent of the parking lot.

Figure 1. The system composition principle

III. THE CLIENT SYSTEM DESIGN

A. The application of intelligent parking planning This design idea develops an application which is able to

reserve parking spaces in a smart phone, after running the APP, click "chewei" button on parking reservation interface can create a new tracking, then the real-time Service read database data in the background and get parking information, the parking space real-time state is mapped to mobile phone screen, click on the button which shows "kongxian" to reserve parking space. And users can check and cancel order through button of "dingdan",

Based on these ideas, android intelligent parking applications development diagram is shown in figure 2: onthe smart phone hardware platform, develop intelligent parking application based on the Android mobile phone operating system. We can divide the development into the following steps: (1) Design application UI. (2) Design database. (3) Interface translator (4) Achieves Service services. (5) Improve and implement programs. (6) Packagesoftware, sign the application and app released

Figure 2. Development of block diagram

2014 Sixth International Conference on Measuring Technology and Mechatronics Automation

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2014 Sixth International Conference on Measuring Technology and Mechatronics Automation

978-1-4799-3434-8/14 $31.00 2014 IEEEDOI 10.1109/ICMTMA.2014.182

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2014 Sixth International Conference on Measuring Technology and Mechatronics Automation

978-1-4799-3434-8/14 $31.00 2014 IEEEDOI 10.1109/ICMTMA.2014.182

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2014 Sixth International Conference on Measuring Technology and Mechatronics Automation

978-1-4799-3434-8/14 $31.00 2014 IEEEDOI 10.1109/ICMTMA.2014.182

741

2014 Sixth International Conference on Measuring Technology and Mechatronics Automation

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B. The design of the smartparking application system What the system mainly used are Android Application

Layer, Application Framework Layer, Common Function Library, Android Runtime Environment and the Linux kernel layer. We have used various components of the Android API interface to develop GPS intelligent navigation system and web server interface, besides, the kernel layer provides the corresponding underlying drivers.

C. Design for interface and function An Activity is an interface of the phone's screen. So the

Activity can be one of the most basic module of Android, anAndroid application that we can think that is composed of multiple Activity interaction, this can be mutually jump among Activity. Different activity can achieve different functions. The application of intelligent parking system mainly include Logo interface, the host interface, GPS,parking reservation interface, order query interface.

Figure 3. Function and interface design

D. The experimental results and effect analysis Intelligent parking system is based on the Android

operating system which has the advantage of framework has nothing to do with the development platform. In the design of the system, take full the advantages of Android system which is easy to transplant and has high efficiency into consideration ,besides, use the Android system interface API module, making the system whether the development efficiency or operation efficiency both have a larger increase.

IV. THE STRUCTURE DESIGN OF THE PARKING SYSTEMThe whole structure of the Parking System is showed as

the figure 4.

Figure 4. The Parking System

A. Design and implementation of the hardware 1) CC2530 introduction

CC2530 is an IEE802.15.4 compatible system on chip which Integrated enhanced 8051 core and combining the TI-ATACK protocol stack can set up its own wireless communications network easily.

2) The coordinator node The design thought of this system coordinator node: We

choose Shenzhen JLX electronic companys Production JLX12864G-086 which powerful and stable display as Liquid crystal display module. The part of serial port were using virtual serial port which integrated by the XWWK-CC2530A module and driven by FT232 to establish a reliable connection between RS422/RS485 and USB. And it has the advantages of long distance transmission and good anti-interference performance. The two modules are composed of coordinator node structure diagram like what figure 5 showed.

Figure 5. The coordinator node design

3) The acquisition node Hardware architecture of acquisition node is showed as

the figure 6.

Figure 6. The acquisition node design

The pressure sensors are commonly used resistance strain sensor, capacitive, piezoelectric pressure sensor. We choose the high cost performance resistance strain pressure sensor used in the system. A/D analog-to-digital conversion chip we selected HX711 which has integrated regulated power supply and the on-chip clock oscillator and so on better than other chip. So it has the advantages of high integration, fast response speed, strong anti-jamming etc. Acquisition node should be connected to the pressure sensor module in order to gather information of the pressure. The amplifying circuits amplify and integrate the signals from all the pressure sensors as the analog signal strong enough, and

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then the A/D chip convert analog signals into digital signals processing and transmitting by the terminal nodes.

4) The realization of the function between nodes Coordinator node will wait for the terminal node join

network after it has set up Star Network. Once the terminal node join network it will send Information that collected by pressure sensor to the coordinator deal with at regular time. And the time interval is 10s. The coordinator will timely analyses what it received and control liquid crystal display the information of parking space. At the same time it will hand those information in PC machine through the serialport help it using those information to update the database. And due to the website call to the database to refresh interface all the time so the user can through the liquid crystal or search the Internet access garage parking space information. The parking space monitoring flow chart is showed as figure 7.

Epigynous machine will deliver signal of reserve to coordinator when someone booked parking space A through mobile clients or the garage control terminal received information of reserve and press the reserve button. After that coordinator will update what LCD screen display and send those information to Terminal a make the terminal node (TN) which is in charge of control the parking space flash red in order to show this one has been reserved. And the same applies to cancel parking space. When someone cancels the reservation the LCD screen display will be updated and the red will also be put out. Parking reservation service flow chart is showed as figure 8.

5) The realization of Hardwears function The pressure sensor module is installed in the router

node and terminal node of ZigBee network in this system. And the acquisition node have installed in a position of a parking space. Of course multiple pressure sensor modules can be controlled by a acquisition node. The pressure sensor will send information of pressure to routing node and terminal node which in charge of control once a car parked in a parking place. And the acquisition node which has received will package that information and transmit to the coordinator through the ZigBee wireless network. Coordination control LCD screen update garage parking information and at the same time, through the serial port to upload information to the database to update the database of the parking information. So we can monitor parking state at any time. The structure diagram is showed as figure 9.

Figure 7. Parking real-time monitoring flow chart

Figure 8. Parking reservation service flow chart

Figure 9. Parking space monitoring structure diagram

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B. Internet Information Server Internet IIS is a server which developed by Microsoft can

provide Web, FTP and Gopher services. It not only can take advantage of every function of Windows XP Server but also can publishing information on the Internet. IIS provide ISAPI to extend the functions of Web server, and it can also realize the rapid development of Web program through ASP.NET. In addition, IIS also includes Microsoft Index Server that can achieve the full text of the Web site content retrieval and analyze site access conditions. Because of the management function of IIS is based on WindowsXP Server, so it can make full use of the security service and directory service what Windows XP Server provides. Its Security model is based on NTFS security mechanism can fully guarantee the security of IIS based Web site.

C. Database Parking spaces is an essential part of parking system, so

we should set up the parking information entity to save every parking spaces detail information. The parking information entity attribute graph is showed as figure 10.

Figure 10. The parking information entity attribute graph

In order to Increase the security of the system, the parking systems managers must through the authentication in the login module when they want to enter the administrator interface. So its necessary to create aadministrator entity to save managers information. The administrator entity is showed as figure 11.

Figure 11. The administrator entity attribute graph

D. The backstage management design The background management interface of this parking

system mainly uses ADO.NET database operation technology. And in the use of ADO.NET we mainly used four objects that ConnectionCommandDataAdaper and DataSet. Connection is mainly responsible for connecting to the database, Command is mainly responsible for generating and executing the SQL

statement, DataAdaper is mainly responsible for generated and filled with DataSet and DataTable after the Command object execute the SQL statement , While DataSet is mainly responsible for the access and update data.

System administrators can look over a series of information about parking space such as the current state of parking spaces, parking state change history, parking fee information and so on after he passed the authentication login. Especially can reserved parking spaces for specific users.

V. CONCLUSIONSThis paper studied on the smart parking system and came

up with a complete method to realize in view of the parking problem. The system can not only help people more convenient parking but also can make management of parking lot more intelligent. The test analysis result is showed as Table 1. Further more, it has the advantages of simple, convenient and economic practicability, at the same time, can implement large-scale promotion and application and can bring great economic benefits.

Table 1. Test analysis diagram

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