UPB_Technology_Overview 9 | Biblioteca actuadores pcslighting

range residential communications market.

current technology with any significant penetration into

Current X-10 is 70~80% reliable. Reliability is defined as the fraction of transmitter/receiver

the physical and MAC layer requirements that a

For the past several years various companies have

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interactions.

of these devices. It is important that low volume and early-stage development be possible

Simplicity the solution should be able to be implemented with off the shelf components,

Interaction Should be able to be used in the same environment as other PLC

will satisfy the requirements of the retrofit residential

As a result of extensive research and investigation we have

no filtering, coupling, repeating or other "fixing" of the residence electrical system.

controls market. We have developed a specification of

Retrofit communication must be "no new wires", either power line or RF

set up, configuration, and computer control reasons. UPB will be 100% two-way capable.

concluded that no other PLC communications technology either

acceptable. Costing five or ten times as much as current X-10 products is not acceptable.

technology to address the large retrofit mid-price-

for a powerline based communication technology that

technologies, such as X-10, CEBus, or LonWorks, without causing unacceptable

without the use of ASIC's.

existing X-10 technology because this is the only

Much of this specification is stated in terms of the

pairs that communicate properly upon initial installation. This reliability must be achieved with

Two way - The media and protocol must be designed to be fully two way for a variety of

existing or in development will meet the cost / reliability requirements.

this market.

including using only standard microprocessors (no ASIC's required). The use of custom

been involved in PLC research and development,

communications technology must meet in order for that

ASIC's will be required as large volumes justify the cost reduction possible only with the use

Compliance - The communications media must be FCC compliant.

Communications Requirements

Reliability - The technology should be 99.98% reliable (1000 times better than X-10).

01/08/2002

Speed - UPB transmissions must be at least as fast as X-10 although faster would be a big

plus.

UPB Overview

due to transmitting/receiving component cost). Costing up to 50% more than X-10 is

spending several tens of millions of dollars searching

Cost The cost must be close to the cost of X-10 products (in terms of the incremental cost