With the development of wireless communication technology,short distance wireless communication technology that is suitable for various application scenarios has emerged.ZigBee technology is a bidirectional wireless communication technology that offers close range,low complexity,low power consumption,low data rate,and low cost.Due to the unpredictable transmission delay of ZigBee,it is not suitable for real-time voice communication.To improve the latency issue,a voice intercom system using ZigBee chip AT86RF231 as the communication chip was designed.Using the MAC layer and physical layer of the chip,real-time wireless voice communication was achieved by controlling the transmission and reception timing through FPGA,meeting the wireless voice communication requirements of a certain system.
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