Based On The Study Of The Nrf24e1 High-speed Wireless Sensor Data Acquisition System And Realization

Since SoC (System on Chip) came into the world, short-range wireless communication is provided with simple reliable solution. Wireless SoC is one of kinds of core technology which has some advantage in developing low-cost and low-power projects. nRF24E1 chip produced by Nordic VLSI corporation works in ISM band ranged from 2.4 to 2.5GHz. Its price is low and with the help of it, development cycle is shortening. It is an excellent wireless transceiver chip.A high-speed wireless sensor network data collecting system based on nRF24E1 is introduced. Data coming from sensor go through wireless connection and then are stored in PDA while are shown to user.It analyses the whole system and designs reasonable function according to requirements. The system is composed of two parts:1. Wireless data transmitting subsystem based on nRF24E1. In this part, it introduces a solution to wireless data transmitting by using RF which is in ISM band provided by nRF24E1. For improving anti-interfere we take use of frequency hopping. Furthermore, to avoid communicating collision, communication are operated in turn between center node and sensor nodes. This can improve efficient.2. Data processing system based on Windows Mobile. In this part, many Pocket PC operation systems are introduced in brief. Sensor data are analyzed and stored forever on windows mobile platform. Users have choices to show figures as they like. Data are display in Instance, dynamic and historic way. Such design makes whole system humanity.Finally, a compare test is running after system integrated. This test is to verify reliability of system under different environments. System that passes the examination is very strong.