基于Android系統(tǒng)的車載商業(yè)信息發(fā)布平臺的研究與開發(fā)
[Abstract]:As a link of modern urban infrastructure, intelligent public transport system has developed rapidly with the development of science and technology, and the electronic products of public transportation have become more and more diversified. As one of the rapidly developing vehicle products in recent years, the commercial information publishing platform is becoming more and more popular. Most of the commercial information publishing platforms on the bus can realize the video advertisement broadcast, but the function of this kind of product is relatively single. The content update lags behind, in practicability is not perfect. In order to solve this problem, this paper studies a bus-borne commercial information publishing platform which is connected with the voice station device. Its composition mainly includes: vehicle information terminal and background control system. The vehicle information terminal is composed of voice station broadcast platform, converter, terminal player and Buck-Boost type vehicle power regulator module. The terminal player software is developed based on Android system. The data transmission between the voice station broadcast platform and the terminal player is realized by means of the converter STM8S207 and RS-485 communication, and the function of inserting and broadcasting the picture of the station is realized while the advertisement is played. Background control system includes control server, background management terminal, database. The control system server is attached to the FTP protocol to provide database support for the player and transmit files through the network with the vehicle terminal. The multimedia files needed for advertisement playing and the station data are all stored in the database. The management terminal (bus online system) requests the server through the HTTP protocol, and can monitor the running of the vehicle through the WEB browser. In addition, the backstage control system is designed to estimate the arrival time and optimize the departure time. After a large number of tests, the system has been loaded into more than 300 units, and the stability of the system during trial operation is good. This research makes the on-board commercial information publishing platform has many functions, such as advertising, publishing information, clock display, image display station and information prediction, which makes up for the shortcomings of the existing single function product. This new multi-function vehicle-mounted information publishing platform has good practical and commercial value and has a broad development prospect. In this paper, the general structure is adopted. Firstly, the functional requirement analysis and system architecture of the vehicle business information publishing platform are summarized, and the key technologies of the system implementation are expounded. Secondly, the research methods of vehicle terminal are explained in detail from two aspects of hardware system development and software system program development, and the Buck-boost voltage stabilizing system and hardware watchdog reset circuit are studied emphatically. RS-485 zero delay circuit and terminal player based on Android platform; Then, the paper studies the method of sending commercial information and vehicle monitoring by backstage control system, and constructs the vehicle arrival time prediction model based on BP neural network and the vehicle departure time interval optimization model. Finally, the final effect of the vehicle information publishing platform is demonstrated through the system test, and the testing multimedia play function and the site plugging function are tested by the test platform. The adaptability of the testing environment and the remote network transmission are tested by the vehicle-mounted test method.
【學(xué)位授予單位】:華南理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:TP311.52;TP316
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