Saturday, May 7, 2011

【 Weak current College 】 smart home wireless RF (HomeRF) technology


HomeRF technology introduction

As wireless technology programme, HomeRF replaces the need for cable laying expensive transmission lines in the home network, the network devices such as laptops and application provides roaming capabilities.

In the United States Federal Communications Commission (FCC) formally approved HomeRF standard HomeRF Working Group had before it, as in the family context for voice and data wireless communications to develop a specification that is shared wireless access protocol (SWAP). SWAP specification advent, in addition to the extended high-performance, multi-band cordless telephone technology, but also greatly facilitates low-cost wireless data network technology development. However, HomeRF occupy with 802 .11b and Bluetooth same 2.4G frequency segments and too limited in functionality, and then the family application, taking into account the Office areas have 802.11b achieved status, I am afraid that in future more difficult.

In China, there are also some smart home company using radio frequency technology, often mainly uses 433.29MHz, this technique has the advantage that some products do not need to re-route use point-to-point radio frequency technology to home appliances and lighting control, installation settings are relatively easy, mainly used in the implementation of certain electrical equipment or lighting control, cost is moderate. But the system function is relatively weak, compared to a single control mode and vulnerable around wireless device environment particularly in the frequency and obstructions interference and shielding; more applicable to the newly renovated and has been renovated.

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