This paper provides a WiFi-Electric Vehicle WiFi system and practical application scheme based on 4G wireless network. It briefly introduces the basic knowledge of WiFi application of high-speed rail WiFi-Electric Car, and describes the application of 4G Netcom in high-speed trains. Through practical application, the desired results have been obtained.
Keywords: High-speed Rail WiFi; EMU WiFi; 4G Netcom; WiFi sniffing;
Part 1 Overview
With the rapid development of the mobile Internet, users expect to enjoy entertainment, online shopping, and information at any time and place. High-speed trains are one of the places where smartphone users use mobile Internet at a high frequency, and most of the passengers tend to use the mobile terminal to access the Internet. Passing the journey time, there is a clear demand for "train WiFi".
Since the restructuring of the Ministry of Railways into a railway company, it has been committed to enhancing the customer experience, shaping the image of the railway, and further looking for profitable opportunities in the huge railway and passenger flow resources. After the train covers the WiFi signal, passengers can offset the fatigue caused by long-distance travel through the WiFi network. At the same time, they can help the railway companies improve their service levels. When a large number of passenger resources are online, they can obtain new profit points through advertising marketing, data mining, etc. .
The second part of the system design
I. Talent Technology provides solutions for high-speed rail WiFi-EMU WIFI coverage:
1. Through multi-network integrated communication technology, over 4G bandwidth of any two operators and tens of megabits of communication bandwidth are obtained during actual operation. Passengers can surf the Internet, chat, and swipe web pages.
2. Use the workshop connection technology to build the local area network on the train between the various trains of the train to form a virtual community of nearly a thousand people on the car. Passengers can make friends and games on the car.
3. By establishing a local area network model, passengers can download applications, watch high-definition video, etc. on each hard disk.
The overall plan is briefly described as follows:
In this solution, a high-end car WiFi router is deployed for wireless coverage in each carriage, wireless bridges or network cables are interconnected between the carriages, a high-end vehicle WiFi router is deployed in a train, and dual 4G links are used for trains to pass through routers. Connected to the Internet, high-end automotive WiFi routers use gigabit wireless networks to synchronize local storage information within the site. When the user accesses and communicates with each other, the high-end on-vehicle WiFi router performs user auditing, security control, application identification, and traffic restriction based on the user's access to the Internet.
At the same time, the entire network is equipped with a marketing management platform, which can be used to implement user access authentication through various convenient authentication methods such as WeChat and SMS, and pushes rich advertising content during authentication to help customers collect key behavior data of end users. Big data mining provides data support, profitability, etc.
(a) hardware configuration:
1, hardware design
project
content
Car power interface
Car power interface: unique car power interface design, not loose
Metal shell design
Industrial grade metal housing design eliminates fire hazards
Monitoring means
With I\O port, detection and alarm vehicle breakdown, GPS vehicle positioning
Industrial CPU
Industrial-grade ARM high-performance embedded processing; with two Krait 300 CPU cores, clocked at up to 1.4GHz, integrated two multi-threaded network accelerator engines, up to 730MHz, capable of handling up to 5Gbps of data throughput
Industrial Wireless Module
Industrial-grade wireless module, strong anti-interference, compatible with dual-card bandwidth superposition, stable transmission
Real-time operating system
Linux operating system, with memory management unit, strong real-time performance, fast function upgrade, stable system, complete with TCP/IP protocol stack
Enhanced circuit board
PCB adopts the principles of 20H and 3W. At the same time, all of the company's product circuit boards are produced using high-quality materials to ensure the stability and reliability of the boards.
Industrial grade components
The entire machine components are produced using strictly selected industrial components.
Industrial power supply
Wide voltage power supply design, power supply range of DC7V - DC32V, built-in power reverse protection and over-voltage over-current protection
Electromagnetic protection
Ethernet interface built-in 1.5KV electromagnetic isolation protection
Anti-jamming design
With metal shell, shielding electromagnetic interference, system protection grade IP31; antenna with lightning protection design; system ultra-low temperature and ultra-high temperature design; especially suitable for use in harsh industrial environment
2, smart anti-offline, support for online testing, online maintenance, dropped automatically redial, to ensure that the device is always online.
3, WiFi interface
The professional independent 2.4GWiFi module and 5.8GWiFi module can output 2 SSID-WiFi signals at the same time. Ensure that all brands of mobile phones on the market can access WiFi and use it smoothly.
4, 4G interface
The default comes with two 4G slots, two SIM card interfaces, while supporting dual-card online bandwidth overlay.
5, local storage interface
Support mini PCIE solid state hard disk interface, support SATA3 mechanical hard disk interface, support TF card interface.
(b) The scheme topology:
(3) Multiple authentication methods: WeChat, QQ, SMS, and a healthy Internet
(4) Site news push “measured according to local conditionsâ€, second greetings to enhance the warmth of tourists, and realize high-speed rail WiFi-car WiFi advertising value-added marketing
When tourists access the high-speed rail-trained car wireless Wi-Fi system, push our recent thematic activities and other information to achieve meticulous and targeted marketing, and enhance the railway business capacity;
(5) Internet behavior management
1, the site's management and control. You can manage customer access to websites: which websites are allowed to visit customers and which websites are not allowed to access.
2. Control on downloading: You can manage the download behavior of the customer: which site content is allowed to be downloaded by the customer, or which site content is not allowed to be downloaded by the customer; which tools the customer is allowed to use for download, or which tools the customer is not allowed to use for downloading.
You can manage the customer's upload behavior: allow the customer to upload content or not allow the customer to upload the content; allow customers to use which tools to upload, or do not allow customers to use which tools to upload.
3, flow control: You can set a group or group of customers online time, you can set a group or a group of customers maximum access traffic, and for each device or custom group for bandwidth, traffic allocation.
4, information: You can use the Mac address to check the customer posting content.
5, go hand in hand: You can set through the settings, the user will follow the set advertising banner when browsing the web page.
6, accurate push: You can set accurate regional advertising.
7. WIFI sniffing: sniffs the MAC information of various terminal mobile devices and reports it to the platform for analysis and statistics. And comply with the audit docking data.
Through the Xiamen Cai Mao high-end vehicle-mounted route marketing system, not only data transmission, GPS positioning, WiFi coverage, but also intelligent marketing functions of advertising can be realized.
The Weihao WIFI system provides WeChat authentication, SMS authentication, Weibo authentication, and portal authentication. After the user connects to the wifi, the project implementer can collect various information of the access user. The information includes, but is not limited to, mobile phone numbers, micro signal, micro blog number, mobile phone MAC address, mobile phone operating system, mobile phone application software, and the like. The project implementer can use the access information wifi to strongly associate the user with the merchant and pave the way for secondary marketing or multiple marketing.
Mao Mao WIFI system provides perfect marketing promotion tools. Cai Mao WIFI back office management system provides queries and reports on access users' mobile phone numbers, statistics and reports on visiting websites, statistics and reports on the number of ad clicks, and total visits to websites. Statistics and reports on the amount of WiFi sniffed data statistics and output reports.
Cai Mao WIFI system background can provide a variety of complete reports, these reports can be displayed by histograms, pie charts, or EXEL, PDF file output.
Part III: Program Value
1. Fit customized solutions to customer needs
Product in-depth scene customization, a variety of features highly integrated, the product meets the total iron 153 documents;
Provides unified products that are compatible with wired and wireless bridging. Flexible and diverse networking deployment methods are suitable for high-speed rail environments;
Supports automatic synchronization of content from the central server to the bicycle server, guiding users to optimal bike server access and improving user experience.
2. Built-in features to ensure user experience
Built-in media server and storage to meet passenger car entertainment needs;
Rich link load and bandwidth management functions ensure user experience;
Comprehensive security measures to protect the network and data security.
3. Guarantee profit protection and maintenance
Rich user authentication advertising marketing platform provides strong support for profitability;
Comprehensive data statistics and analysis provide decision-making basis for advertising marketing;
Related hardware devices implement "zero configuration";
Provide online content control, audit, and meet the requirements for safe Internet access in public places.
The fourth part of the core product
Cai Mao high-end vehicle routing is a set of perfect WiFi coverage operating system designed for high-speed rail - train - bus - bus and other mobile vehicles.
The main function of the product:
1. Built-in 2-way 4G Netcom module, dual-mode at the same time online, can be freely switched, and can also be bandwidth superimposed to ensure the user in the process of use, smooth use.
2. Support 2.4G and 5.8G dual SSID-WiFi access at the same time.
3, support the largest 2T SSD or maximum 10T mechanical hard drive mass storage.
4, support WEB, CLI, SSH, platform, a variety of parameter management methods, local, remote, platform firmware and patch upgrades.
5, support WEB configuration save and restore, implement parameter backup and batch device rapid configuration
6, smart anti-offline, support for online testing, online maintenance, dropped automatically redial, to ensure that the device is always online.
Product Features:
1, support dual SIM card at the same time online, you can freely switch networks, while supporting bandwidth superposition.
2. Dual WiFi band: Support 2.4G and 5.8G dual SSID output at the same time.
3. Single frequency supports 150 users access at the same time, and dual frequency supports 300 users access at the same time.
4, with WiFi sniffing capabilities, sniffing the terminal's MAC reported to the platform analysis statistics.
5, the industry to achieve the first double-active mode, the LAN LAN port division, which several ports take the wired network, which several ports go 4G network, while monitoring the dual-link network conditions, a network link failure All switch to another link.
5. Support online behavior management functions that comply with national mandatory regulations.
6, site update function, the vehicle arrives at the site to use the site's wifi to update multimedia resources, save 4G traffic, but also speed up the update speed, support for breakpoints continued transmission function.
7, support as a PPP server, a variety of authentication methods, support for two-way authentication.
Summary of the plan
Cai Mao high-end vehicle routing high-speed rail WiFi - train WiFi system, successfully helped the Ministry of Railways to solve the problems encountered in the course of WiFi operations, improve the quality of service of the Ministry of Railways.
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