ARM9 features
Refer to ARM9E-S to see the internal modes and related performance of ARM9. The main features of ARM9E-S are as follows:
(1) Thirty-two-bit fixed-point RISC processor, supporting real-time debugging;
(2) Static access to memory, access device size is variable; (3) Buffer capacity from 512 bytes to 1024 bytes;
(4) Design multiple units, and the access equipment can be divided into multiple parts for care;
(5) Use relevant bus interfaces to provide consistent interface locations for external devices;
(6) Support external auxiliary processing equipment, and the command and data buses have signal support;
(7) Support basic method detection theory, and support BIST (built-in-self-test);
There is a common method on the market that uses hardware integration to implement IP telephone networks.
Close method. It is composed of voice card, resource card and network card. Among them, the D/41 voice card realizes voice sampling and playback. The C6200 resource card has a TMS320C6201DSP chip, which is used to complete voice compression and decompression as well as echo cancellation. The PC completes most functions of the H.323 protocol stack, and the network card can send and receive IP packets.
This article is based on the ARM9E-S processor hardware platform and uC/OS-II real-time operating system software platform. On these two platforms, the TCP/IP network protocol stack, H.323 protocol stack and G.729 protocol codec are studied and completed. Algorithm to implement IP voice gateway. The IP voice gateway implementation structure is shown in Figure 1.Industrial gateway
4.2.3 Encourage pioneering and support power supply companies to take the lead in trials
To improve the efficiency of the construction and promotion of integrated marketing information systems, it is necessary to introduce corresponding policies to encourage pioneering and encourage power supply enterprises to actively participate in the pilot team of the new marketing system. Of course, in the process of promoting the information marketing system, full consideration should be given to We must understand the development of the business and the innovation and innovation needs of each power supply enterprise, and combine these needs to formulate effective technical support strategies and management strategies to meet the business development needs of each power supply system. Of course, effective incentives should be taken to encourage the promotion of integrated marketing systems, fully leverage the advantages of integrated marketing information systems, and promote the rapid development of power supply enterprises.
Conclusion
The voice gateway serves as a bridge connecting the Internet network (whether it is a public network or a private network) and the public telephone network. Nowadays, the whole world is studying voice gateways based on embedded systems. Here, only one research method and related design are proposed.
To sum up, in the current process of rapid development of information technology, power supply enterprises have gradually applied advanced integrated marketing information systems.Pass
Through this article’s analysis of existing problems and countermeasures in the construction and promotion of integrated marketing information systems, the author mainly analyzes the shortcomings in the current construction and promotion of integrated marketing information systems. At the same time, he also proposes relevant improvement countermeasures to facilitate the development of power supply enterprises and Provide corresponding suggestions for the construction and promotion of integrated marketing information systems.