About GPRS networking, is there any expert who can tell me about the methods of networking? method?

IP MODEM networking is a C/S network architecture network system based on wireless mobile cellular networks and transmitting data through TCP/UDP network protocols. It can support point-to-point, point-to-multipoint and other networking communication methods, and supports extended SMS functions and application systems released by multiple information service platforms.

1) Server public network fixed IP method

2) Server public network floating IP method

IP MODEM supports the function of connecting domain names, and is not fixed on the server side In the case of IP, the domain name can be bound on the server side. IP MODEM can connect to the server by accessing the domain name bound to the server.

3) APN (VPDN) private network method

IP MODEM supports the APN (VPDN) function. Customers who have applied for the APN (VPDN) network can easily implement terminal and Data center networking communications.

4) Point-to-point mode

When you only need to realize remote communication between two serial port terminals, you can use point-to-point transmission.

Point-to-point transmission uses one IP MODEM as the server and another IP MODEM as the client. The client actively connects to the server IP MODEM to establish a transmission link, thereby realizing communication between the two terminals. This networking method requires that the card inserted into the server-side IP MODEM has a fixed IP.

2. Introduction to extended network topology

1) Multi-center, active and backup centers, SMS and other network expansion

Set to a single center, and the main center When the backup center is configured, the IP MODEM will first connect to the main center for communication. If the main center is abnormal, the IP MODEM will connect to the backup center. After the main center recovers, the IP MODEM will hang up the backup center and reconnect to the main center.

If there are multiple centers and it is set to multi-center, the IP MODEM will connect to all the centers set, and communication between the multi-center and IP MODEM can be achieved.

2) Point-to-point application networking expansion

In the absence of a fixed IP, TCP forwarding through a third-party point-to-point server can be used to achieve point-to-point transmission.

3) Support application-based networking methods released by multiple platforms

After IP MODEM networking data is sent to the server, the server can publish the information that needs to be published through TCP, WEB, etc. Or provide online query and control via mobile phone, Dianhao, PDA and other methods.

4) Network transformation from local serial communication mode to wireless remote transmission system

If the terminal equipment on site has already transmitted data through RS232 or 485 bus, and now you want to realize remote wireless transmission, you can Using IP MODEM+T2COM+, customers use serial port software to implement it.

The topology map will not be uploaded yet