针对车间实时数据采集组网模式技术中轮询制信道利用率低的问题,提出一种基于时分多址技术的RF433M通信方法,在实际项目中制定射频组网主动发送机制。与其他射频组网轮询制的比较结果表明,基于时分多址技术的主动发送机制无论是在通信速率、通信稳定性还是在组网灵活性上,性能都更优。该技术能更好解决车间的射频组网同步问题,有效提高车间无线网络的信道利用率和通信速率。 In order to solve the problem of low utilization rate of polling system in real-time data collection and networking mode, a RF433M communication method based on time division multiple access technology is proposed. Active transmission mechanism of radio frequency network is established in practical project. Compared with other radio network polling systems, the active transmission mechanism based on time division multiple access technology shows better performance in terms of communication rate, communication stability and network flexibility. The technology can better solve the workshop RF network synchronization problems, effectively improve the workshop wireless network channel utilization and communication speed.