Southwest China Logistics Wireless Mesh Network Solution

The Southwest China Logistics Center in Beijing is a large-scale professional book warehousing logistics enterprise in China. In order to better cooperate in all logistics links, enhance logistics security, improve work efficiency and early warning performance. Recently, Beijing southwest logistics center has used adelia's wireless mesh network technology to cover the entire logistics area, and has implemented video monitoring, wireless Internet access, voice communication, and handheld wireless access.

Figure: southwest Beijing Logistics Center

I. project requirements
The southwest Beijing Logistics Center is located in Yushu district, huaxiang district, Fengtai District, Beijing. It is adjacent to the freight yard Fengtai Railway Station of the West Railway Station. It is 1 km away from the four-Ring Expressway in Southwest China and only 800 metres away from the exit of the west exit of jingshi Expressway, formed a fast and Fast transportation network. Southwest China Logistics provides shipping, storage, packaging, shipping, and distribution services for many publishers across the country. There are 8 large reservoir areas in Beijing, covering an area of more than 500 mu and a large national transportation network. It is an indispensable and important distribution channel in the book market. To improve the quality and efficiency of logistics work, Southwest logistics needs a powerful network that provides the following functions:
● Integrate all the warehouses, offices, and headquarters in a unified Wireless Network
● Video surveillance at the door and in some key areas in all partitions
● Achieve wireless access of handheld terminals in the logistics Application System
● Support for VoIP Voice Communication
● Provide data communication and Internet services for some warehouse offices and dormitories
● High network reliability and scalability

Ii. Objectives and Principles of Wireless Mesh Network Construction
1. Project Design Objectives
In this project, the network coverage of Southwest China Logistics is realized, at the same time, video surveillance is implemented for each partition warehouse and some key areas, wireless access to the handheld terminal of the logistics system, and voice communication is supported.
2. Design Principles
Because Southwest China Logistics has many functions to implement, it also needs to reserve space for resizing for the planned phase II Network project. Therefore, the scalability and high security of wireless networks have high requirements. At the same time, the network must have high-capacity bandwidth and ensure smooth access to the Internet, video and audio transmission, information transmission, and other functions.

3. Wireless Mesh Network Solution

1. Transmission Network System Architecture

Figure: Transmission Network System Architecture

The Southwest China Logistics wireless bearer network adopts a hybrid network consisting of adelia indoor wireless routers MSR4000, MSR2000, and indoor wireless routers MSR1000.
Each region is covered by one or two wireless routers, and the frequency is set. One radio overwrites the targeted area, and the other radio forms the return link.
2. Logistics System Application
The Wi-Fi wireless handheld terminal can seamlessly connect to the Azalea wireless mesh network to realize data interaction between Internal Logistics application systems. In this way, information-based and automated office work can be achieved to improve enterprise efficiency.
3. Broadband Access
Azalea indoor and outdoor wireless routers are used together to provide broadband wireless access for staff dormitory buildings and office buildings in Southwest China Logistics Park.
4. Voice Service System
The customer's Wi-Fi phones and other devices can seamlessly connect to the azalea wireless mesh network, making internal communications more convenient and saving enterprise operation costs.
5. Monitoring System

Figure: Camera Access System Method

The adelia Wireless Mesh Network System provides multiple access methods for terminal camera access, making the Location Selection of terminal access more flexible.
Method 1: Wired Access. The camera uses a digital camera and uses an Ethernet jumper to directly access the MSR Ethernet interface.
Method 2: wireless access. The camera uses a wireless digital camera to access the network through the wireless module of the camera within the wireless network coverage.

Figure: adelia Wireless Mesh Network System

IV. Implementation results

After the project is completed, the southwest logistics center has accepted the project. According to the person in charge of the Information Department, adelia's wireless mesh network technology completely satisfies the business needs of Southwest China Logistics. The wireless access of handheld terminals in logistics and transportation is realized, and video surveillance can be performed on each area of the warehouse. At the same time, it enables access anytime, anywhere and supports voice communication. The redundancy mechanism greatly improves the security of the Logistics Park Information System.
The Southwest China Logistics Center said that the application of the wireless mesh network technology in the logistics center is a perfect combination of advanced network technology and the logistics industry. This greatly improves the efficiency and quality of logistics work, and forms a more advanced and perfect logistics system to meet the needs of many publishers and book companies.
"One-network multi-purpose" is a manifestation of the high intelligence of the wireless mesh network, adelia project leader said, because of the network structure of the wireless mesh network, so that the massive amount of information can be transmitted without barriers, and make the information system more secure, in order to meet the needs of Internet access, video monitoring, voice communication and other functions at the same time, this will bring a more efficient business environment for Southwest logistics, and improve the competitiveness of the Logistics Park.