Wireless sensor network multi-interface gateway equipment with terminal function and uses thereof

Abstract

The invention discloses a multi-interface network gateway with terminal function for a wireless sensor. The network gateway comprises a processor, an Ethernet communication unit, a serial interface communication unit, a Bluetooth communication unit, a wireless communication unit and a subscriber display unit. The invention also discloses a data transmission method based on the network gateway; data stream transmission is controlled through a data distribution module, thus realizing one-to-multiple and multiple-to-one reliable transmissions. The network gateway is integrated with terminal displaying function, and is capable of data displaying, storing and controlling to the network of the wireless sensor without other terminal units, thus realizing the terminal function of the network gateway. The network gateway is small in size and light in weight and can be effectively applied in outdoor occasions when PCs or large terminal units are inconvenient to carry, solving the problem that conventional network gateways are out of use when no PC or DC electrical source is available; therefore the network gateway accelerates the development of the practicality of the wireless sensor network.

Description

technical field [0001] The invention relates to the technical fields of embedded systems and wireless sensor networks, in particular to a wireless sensor network multi-interface gateway device with terminal functions and its application. Background technique [0002] At present, as a brand-new information acquisition and processing technology, wireless sensor network has begun to be more and more widely used in military, environment, health, family and other fields. For various long-term or short-term environmental monitoring applications, traditional wired measurement and control systems are often incompetent due to difficult wiring and complex structures. As an important extension and supplement of the wired measurement and control system, the wireless sensor network solves this problem well. [0003] figure 1 It is a schematic diagram of a typical structure of a wireless sensor network system, which describes three types of nodes contained in a wireless sensor network s...

AI Technical Summary

Problems solved by technology

[0004] 1. In the actual environment, it is often impossible to carry large equipment such as PCs and provide 220V AC power for them

[0005] 2. In the absence of terminal devices such as PCs, data access to the sensor network cannot be performed

[0006] 3. The gateway interface is single, and it is impossible to connect multiple terminal devices at the same time to realize data sharing

[0007] 4. It cannot be connected with widely popular portable devices, such as PDA (handheld computer) and smart phones

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