英语翻译Wireless module adopts advanced ZigBee technology for it has self network building function,flexible networking,without manual interference.Andone net node can perceive other nods’ existence and determine connection relationship.Interna
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英语翻译Wireless module adopts advanced ZigBee technology for it has self network building function,flexible networking,without manual interference.Andone net node can perceive other nods’ existence and determine connection relationship.Interna
英语翻译
Wireless module adopts advanced ZigBee technology for it has self network building function,
flexible networking,without manual interference.And
one net node can perceive other nods’ existence and determine connection relationship.International general free frequency band(2.4̚2.48 GHz ISM) is adopted as usage frequency and direct sequence spread spectrum(DSSS) which has the ability of high anti- interference is adopted as transmission method to support high network physical performance[5].Above all,ZigBee technology is the best way for the network of road lighting control system.In practical design,Freescale’s MC13214 that incorporates a low power
2.4 GHz radio frequency transceiver and an 8-bit microcontroller is adopted as wireless transceiver chip.The RF transceiver is an 802.15.4 Standard compliant radio that operates in the 2.4 GHz ISM frequency band.So it can support many network connection manners such as point to point,mesh network,star network and tree network [7] and it can enhance flexibility and
adaptability of the net of road lighting.MC13214’s configuration is shown in Fig.4.
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英语翻译Wireless module adopts advanced ZigBee technology for it has self network building function,flexible networking,without manual interference.Andone net node can perceive other nods’ existence and determine connection relationship.Interna
无线模块,它采用先进的ZigBee技术具有自网络建设功能,灵活的网络,无需人工干预.
一个网络节点能够感知其他点头的存在,并确定连接关系.国际通用免费频段(2.4̚2.48 GHz的ISM)是使用频率和采用直接序列扩频(DSSS),其中具有高抗干扰能力的方法是通过传输网络,以支持高物理性能[5] .总之,ZigBee技术是道路照明控制系统网络的最佳途径.在实际设计,飞思卡尔的MC13214,包含了低功耗2.4 GHz的射频收发器和一个8位微控制器是采用无线收发芯片.该射频收发器是一种802.15.4无线电标准兼容,在2.4 GHz的ISM频段.因此,它可以支持点对点,如许多网络连接方式,网状网,星形网,树网络[7],它可以提高灵活性和适应性道路照明网.MC13214的配置如图4.