摘要
随着现代通信技术发展越来越快,无线传输通信技术得到广泛应用。在工业应用领域无线传输技术的应用场景越来越多,如不同功耗速率传输的2G、3G、4G等广域网技术等。而低功耗低速率的广域网传输技术Lora侧基于扩频技术的超远距离无线传输方案,可提供无线通信技术运行于ISM频段(Industrial Scientific Medical Band),具有经济性好、组网方便、易于实现,并具有较好的抗干扰性等特点。它最大特点就是在同样的功耗条件下比其他无线方式传播的距离更远,实现了低功耗和远距离的统一,它在同样的功耗下比传统的无线射频通信距离扩大3-5倍,传输距离范围长达15至20公里。文章从无线传输技术应用需求为解决近距离可靠传输进行分析,结合两个站点间相距1公里内的无线通信存在的信号衰减、传输数据量和抗干扰能力等因素,提供了具有针对性的无线通信解决方案。
With the rapid development of modern communication technology,wireless transmission communication technology has been widely used,and there are more and more application scenarios of wireless transmission technology in industrial application fields.Such as 2G,3G,4G and other wide area network technologies with different power consumption rates.The ultra-long-distance wireless transmission scheme based on spread spectrum technology on the Lora side of the low-power and low-rate WAN transmission technology can provide wireless communication technology to run in the ISM band(Industrial Scientific Medical Band).It has the characteristics of good economy,convenient networking,easy implementation,good anti-interference and so on.Its biggest characteristic is that under the same power consumption condition,it propagates farther than other wireless methods,realizing the unity of low power consumption and long distance.With the same power consumption,it expands the distance of wireless radio frequency communication by 3-5 times,and the transmission distance is as long as 15 to 20 kilometers.In this paper,the application requirements of wireless transmission technology are analyzed to solve the problem of short-range reliable transmission.According to the signal attenuation,transmission data volume and anti-interference ability of wireless communication within 1 km between the two stations,a targeted wireless communication solution is provided.
出处
《科技创新与应用》
2021年第31期116-119,123,共5页
Technology Innovation and Application
关键词
物联网
无线通信
数传电台
485通信协议
低功耗
广域网技术
Internet of Things
wireless communication
data transmission station
485 communication protocol
low power consumption
wide area network technology
