Abstract: Although ZigBee technology makes fast networking more convenient, its network security completely depends on the network keys and lacks effective security configuration options, which makes the leak of keys and the lack of user information security. Based on frequency hopping spread spectrum technology, a ZigBee transmission method is proposed, which makes it difficult to track and catch the information of keys and enhances the ZigBee network security. Based on the proposed method, the model of QPSK frequency hopping spread spectrum transmission system is established and verified by simulation. The simulation results show that the QPSK wireless transmission system with frequency hopping spread spectrum technology has a good reliability.

Key words: ZigBee, frequency hopping spread spectrum, security, modeling