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The low cost wireless sensor network time soon arrives
Origin: Control engineering China net input time: 07-06-29 17:02:41English version

Crossbox simultaneously promotes Imote2 embarked a formidable PXA271IntelXScale processor chip, also may establish the low voltage (0.85V), the low frequency (13MHz) the pattern, also may establish to the 416MHz frequency may promote the processing pattern. Compared with formerly the wireless sensor network hardware platform, Imote2 has provided the more memories resources, including 256KB SRAM, 32MB SDRAM and 32MB Flash.

    On chip I/O and the sensor connection extremely facilitates Imote2 to carry on two times of developments and the integration, greatly enhanced the Imote2 compatibility. Imote2 provides general and the nimble platform may the widespread application to the picture, acoustics, the earthquake and the vibration signal processing. The IEEE802.15.4 standard radio frequency and the 2.4GHz band width, 16 channels, the 250kb/s data output rate is compatible. In sets the 2.4GHz antenna can achieve 30m the standard receive scope. Enhances outside the receive scope passable SMA articulate to set at the antenna.

    With all the new technology which develops is being same, besides the cost question, the wireless sensor network product still lacked a unified standard solution mutually operational question, this kind of situation has similarly become the wireless sensor network development disadvantage factor. Uses TinyOS which Burkley University of California develops to have the help. Crossbow MoteWorks the software and hardware wireless Mesh network developed the platform to use TinyOS, it supported based on the IEEE802.15.4/ZigBee standard is fast, nimble and the open style design. This opening overhead construction can cause the high intelligence multipurpose transmitter dynamic and reliable carries on the self- adjustment, in order to in any time, any place comes effectively the gain and the transmission physics data.

    The wireless sensor network lives at home the application in the intelligence also to place the great expectations, it will be able to realize the people about "the future hut" many tentative plans. For instance automatically regulates room temperature with the light, monitors in the living room in the bedroom the situation and so on. Although the IRIS pitch point cost already fell to 300 Yuan in, but still was unable to achieve the price sensitive home use market the anticipation. Crossbow Qin Fei indicated that, the wireless sensor network enters the family is an inevitable tendency, but still needed the long process.

   

Chief-editor: Article author: Week luxuriant publication time: 2007-06-26 along with pitch point cost, power loss and volume question solution, wireless sensor network (Wireles

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