Wireless teknolojia Zigbee, WiFi sy 433MHz ny toetrany

Wireless teknolojia Zigbee, WiFi sy 433MHz ny toetrany

Zigbee, Wifi sy 433mhz dia teknolojia telo samy hafa ho an'ny serasera tsy misy tariby fohy. Ny teknolojia tsirairay dia manana ny fananany sy ny cons.

Zigbee dia hery ambany, Azo itokisana be, Technology Technology Yireless Mesh. Amin'ny alàlan'ny fampiasana ny làlambe, Tsy ny sehatry ny tambajotra tambajotra ihany no afaka miitatra mora sy amboarina, but also the “blind spot” in wireless communication environment can be eliminated. Ankoatry ny, Zigbee supports star, tree and mesh topologies. Ary noho izany, Zigbee is well-suited for both simple and complex built environment. Compared to the WiFi, na izany aza, Zigbee’s data rate is 250kbps, lower than WiFi’s 11Mbps-54Mbps. That makes Zigbee inappropriate for high data rate applications, such as internet surfing, large file downloading or uploading. For restaurant and catering industry, na izany aza, the data exchanged between server and terminals generally are just small amount. Ary noho izany, Zigbee is a quite suitable technology for ordering application.

WiFi can support high-data-rate applications. It also supports “always-on” feature, which makes the WiFi attractive for some applications. na izany aza, it has some drawbacks which have been noticed by the consumers, such as high power consumption, low reliability, long reconnection time, sns.

433MHz technology has been widely used in China for restaurant ordering application. Since it uses relatively low frequency band, its wireless signal can be transmitted further than Zigbee and WiFi, which operates in 2.4GHz band. na izany aza, the data rate of 433MHz is only 9.6kbps, much lower than WiFi and Zigbee’s data rate. Ary noho izany, 433MHz suits the application in which only small amount of data needs to be transmitted. Ankoatry ny, same as WiFi, 433MHz supports star topology only, which may cause “blind spot” within the wireless network coverage area.

Different from the WiFi’s “always-on” feature, in Zigbee and 433MHz system, the wireless link is established only when there is data need to be transmitted. This mechanism can dramatically reduce the interference to other devices in the network. The power consumption of the device is also reduced. na izany aza, If “always-on” is requested in Zigbee or 433MHz system, a function can be designed in the application software to support this feature.
(Source: Shehzhen Seabreeze Smart Card Co., Ltd.)