Software wireless technology-based heterogeneous network experimental device

Abstract

The invention discloses a software wireless technology-based heterogeneous network experimental device. The device faces a wireless sensor network, a wireless local area network, a frequency modulation broadcast network and the Internet. Experimental equipment comprises universal gateway nodes, wireless sensor nodes, a frequency modulation receiver and a host on the Internet. A universal gateway node is structured by software wireless technology and comprises front-end hardware equipment and a rear-end software module, wherein the rear-end software module runs on a universal computer; and the front-end hardware equipment and the rear-end software module are connected through a wire. The universal gateway node can communicate with any experimental equipment and also can realize conversion of various heterogeneous network protocols. The invention designs a heterogeneous network experimental device embodiment and also designs a data transmission experimental embodiment on the basis of the heterogeneous network experimental device embodiment. Compared with the traditional device, the software wireless technology-based heterogeneous network experimental device has rich content of courses and an open experiment environment and it is convenient for students to study and research various heterogeneous networks and more heterogeneous networks.

Description

technical field [0001] The invention relates to a teaching experiment device, in particular to a heterogeneous network teaching experiment device for wireless sensor networks, wireless local area networks, FM broadcast networks and the Internet built on the basis of software radio technology. Background technique [0002] With the development of wireless communication technology and the promotion of various applications, a variety of different wireless networks have emerged, such as wireless sensor networks, whose physical layer and MAC layer are based on the IEEE802. , Low-speed wireless applications; such as wireless local area network, its physical layer and MAC layer are based on the IEEE802.11b standard, for medium-distance high-speed, burst data applications. In addition, the Internet, as a global network, relies on the TCP / IP protocol for interconnection, and has been widely used. As a traditional broadcasting method, FM broadcasting network is still popular because ...

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Problems solved by technology

[0003] However, there are few existing teaching devices for heterogeneous network interconnection, and most of the platforms used are based on the interconnection between various heterogeneous device gateways, that is, different access gateway devices need to be configured for different protocols, and there are many devices. The implementation is complicated and cannot meet the purpose of efficient interconnection and heterogeneous network teaching

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