Wireless sensor network system used for environmental monitoring inside spacecraft

Abstract

The invention relates to a wireless sensor network system used for environmental monitoring inside a spacecraft. The wireless sensor network system comprises: a local network, that is, a data collection and transmission network, which employs a wireless networking technology to collect and transmit an environmental parameter inside a spacecraft; a gateway, which is used for carrying out bridging between the local network and a spaceborne data network / bus so as to realize data exchange between the local network and the spaceborne data network / bus; the spaceborne data network / bus, which is used for realizing communication between terminals on the bus and between a terminal and a spaceborne computer; and the spaceborne computer, which is used for carrying out processing on sensor data collected by the local network and emitting an appropriate instruction according to a result.

Description

technical field [0001] The invention relates to the field of avionics network, in particular to a wireless sensor network system for environment monitoring in spacecraft. Background technique [0002] At present, the monitoring of environmental parameters in spacecraft generally adopts the time-division data collection method. The system consists of multiple remote acquisition and editing units and a central program unit. The far end of the parameter is collected locally, and the collected encoded data is transmitted to the central unit through the serial port. The central unit is equipped with a number of remote acquisition and editing unit interfaces and digital interfaces, which control the data acquisition and transmission of the remote acquisition and editing unit. And the synthesis of all the telemetry data. [0003] Due to the large number of parameters to be measured and the wide distribution, there are also many remote acquisition and editing units and digital inte...

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Problems solved by technology

[0003] Due to the large number of parameters to be measured and the wide distribution, there are also many remote acquisition and editing units and digital interfaces, which brings the problem of a large number of acquisition and editing unit interfaces and digital interfaces on the central unit. There are more than a dozen cables, and the signal access and transfer are intricate. The many cables and connectors not only cause the burden of quality, volume, and power consumption, but also cause the complexity of layout and wiring, which increases the test and maintenance in the later period. difficulty

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