- 型号:RELIANCE ELECTRIC 600434-6R
- 数量:2
- 制造商: 厦门兴锐达自动化设备有限公司
- 有效期:2019/2/1 0:00:00
瑞恩RELIANCE ELECTRIC 600434-6R
瑞恩RELIANCE ELECTRIC 600434-6R
瑞恩RELIANCE ELECTRIC 600434-6R
在传统的局域网或者广域网当中,远距离和低功耗只能二选其一,但是随着智慧城市及智慧农业、牧业的全面部署以及城市感知与互联的发展需求,城市、农田、牧场越来越多的碎片化终端设备需要接入网络,这就需要低功耗长距离的网络覆盖。LoRa通信基于扩频技术兼顾了远距离与低功耗。LoRa网络技术的实施部署,将颠覆传统智慧城市网络的运营方式,并重构智慧城市的运营模式和生态环境。
以双向数据通信满足前端与后台的无缝对接,LoRa网络架构属于典型的星形拓扑结构,以终端、基站、服务器组成,基站作为中间件连接终端及后台服务器。基于扩频技术具有超强的抗干扰能力,穿透性强,300bps至50Kbps的低数据传输速率(自适应数据速率),小于10毫瓦的发射功率,通信距离达到了空旷地带15公里,建筑密集区2到3公里的广域覆盖。
在智慧城市的建设中,建设智慧交通构建车联网,对路灯实施控制实现智能照明,对井盖广告牌的管理,城市及各行业水电消耗的监控建设智能楼宇,土壤水质的环境监测分析等。LoRa作为通信网络将辅助于一系列的智能城市的应用,以增加城市运行的日常效率。在农牧业,LoRa也将大显身手,根据农业的发展,需要对资源进行合理的控制,提高产量,考虑到农田所处的网络环境即绝大部分的农田都没有蜂窝覆盖,对土壤、空气等环境因素进行监测分析,对于土壤及空气的温度、湿度和土壤酸碱度等的数据监测就要求传感器的数据采集在时间上需要具有长效性,还需要由外在的经济合理性对成本进行控制,LoRa以超长的电池寿命,低速率远距离传输的低成本控制,将为最理想的选择。
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