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Currently, some commercial car guard systems have little function, large volume and high power consumption. In this paper, a low power consumption guard system is designed with MSP430 micro controller. The system combines GPS receiver module with GSM communication network. By receiving position information from GPS, the longitude, latitude, velocity and position of object are calculated. At the same...
In order to ensure the high positioning precision of GPS land survey device and uploading the investigating data to data central real time, the paper analyses the advantages and disadvantages of several wireless communication technique in common use. And a data transmission system used in GPS land survey device is designed and developed based on GPRS. The results of lots of tests and applications...
A vehicle monitoring system communication protocol is designed in this paper. The protocol is divided into three layers and each layer of protocol and protocol streams have been carried out a detailed description, and finally an application example is given.
Equipped with recent advances in electronics and communication, wireless sensor networks gained a rapid development to provide reliable information with higher Quality of Service (QoS) at lower costs. This paper presents a realtime tracking system developed as a part of the ISSNIP BigNet Testbed project. Here a GPS receiver was used to acquire position information of mobile nodes and GSM technology...
It proposed a method of combining the two types of data service CSD and GPRS based on GSM applied to GPS vehicle real-time monitoring and alarming system. Based on this method, basic constitution and network structure of the system is given out, and then it implements the CSD and GPRS hardware interface and software flow based on the GR47 wireless communication module. Arm embedded system was used...
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