An in-transit real-time monitoring system for dangerous goods status

as well as its location based on wireless sensor networks（WSNs） is presented.The sensor nodes can be selected according to different kinds transportation tools and dangerous goods.Each of the sensor not may either be deployed the means of transport or attached to the dangerous goods.After being loading into the system all deployed sensors notes autonomously form Ad hoc sensor networks.So the remote wireless data can be access and transmitted through the sensor network in-vehicle by GPRS.The design scheme of system structure

hardware and software.The experimental results show that the measurement error of designed system is very small and can meet practical needs of use.