【主 营】： AB、GE、施耐德等各类PLC产品
【价 格】： 电议
【发布人】： 何工
【电 话】： 13400741523，0592-6518307
【所在地】： 福建 - 厦门
【邮 箱】：
【来 源】： 供应信息 > 电工、电气 > PLC
【Q Q】： 3430880181
美国权威咨询机构FORRESTER预测，到2020年，世界上物物互联的业务，跟人与人通信的业务相比，将达到30比1。因此，“物联网”被称为是下一个万亿级的通信业务。
根据AT&T的评估，到2020年，全球M2M的连接数量将达到500亿。实际上，随着M2M解决方案的日渐成熟，通信、传感设备成本的下降，物联网将逐步渗入各个行业。
汽车、机械、大型设备等机器的全球互联，利用新的分析技术和商业智能解决方案，可以从海量数据中抽取出更多有价值的信息，也可以为客户提供更多的增值服务。
“物联网最核心、最基础的就是传感器。”中国物联网研究发展中心主任叶甜春说，没有传感器就没有办法让机器自动感知信息。正是因为有了传感器加入网络，物联网的概念才被提出来。
传感器作为现代科技的前沿技术，被认为是现代信息技术的三大支柱之一，也是国内外公认的最具有发展前途的高技术产业。然而，在传感器迎来春天的时候，中国公众看到的似乎仍然是国外半导体巨头的盛宴。业内人士认为，虽然中国的传感器市场发展很快，但本土传感器技术与世界水平相比仍存在很大差距。这种差距，一方面表现为传感器在感知信息方面的落后，另一方面，则表现为传感器自身在智能化和网络化方面的技术落后。由于没有形成足够的规模化应用，导致国内的传感器不仅技术低，而且价格高，在市场上很难有竞争力。
中国传感器产业的那些差距
清华大学精密仪器系教授董永贵介绍，中国大致从1980年以后开始重视传感器技术的研究。经过多年的努力，在传感器研究方面的发展水平还算是比较好的。但是，在产品化方面的技术进步还不是很理想，很多传感器技术，其实国内的实验室研究水平并不是很差，可惜未能充分利用，没有转化为进入市场的成熟产品。
他说，传感器技术的研究需要比较长时间的投入，一款传感器的研发，要6年-8年才能成熟，一般中国企业都承受不了这么长的周期。中国企业更难以承受失败，而传感器的研究失败的风险很高。
根据董永贵在日本访问时了解到的情况，日本企业支持的研发中，很多形不成产品，但是企业能够承受，10项中只要2项-3项能够变成产品就行。
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21382 Sew-Eurodrive DRS71M4DH Motor Gearbox 0.75HP
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