Development of an International Standard for ECHONET Lite Application Communication Interface (AIF) Specifications to Start
To improve interconnectivity between home air conditioners and HEMS*1 controllers
February 6, 2019
In response to Japan’s proposal to develop a new international standard for ECHONET Lite Application Communication Interface (AIF) Specifications between Home Air Conditioners and HEMS Controllers, the ISO/IEC Joint Technical Committee 1 (hereinafter referred to as the “JTC1”) has decided to start development of such standard.
Establishment and publication of the new standard proposed by Japan and dissemination of home air conditioners that meet the standard will encourage people both in Japan and overseas to introduce HEMS into their households, and therefore the standard will contribute to worldwide energy conservation and strengthening competitive advantages of Japanese products in international markets.
1. Purpose of and background to the proposal
In order to improve interconnectivity of equipment that is manufactured by different companies, ECHONET Lite AIF specifications define the operations and the behaviors that are specific to the kinds of equipment, and comply with the international standards for ECHONET Lite*2.
In Japan, AIF specifications were stipulated targeting eight priority HEMS devices*3 and the third-party certification program began. Aiming to not only further disseminate HEMS in Japan but also ensure dissemination overseas, Japan decided to develop international standards that cover specifications for overseas product models.
As air conditioners, one of the eight priority HEMS devices, tend to expend more energy than other household appliances and are widely disseminated all over the world, Japan submitted to the JTC1 a New Work Item Proposal (NP) for development of a new international standard for the AIF Specifications between Home Air Conditioners and HEMS Controllers. The JTC1 approved the proposal and decided to start discussions on development of the new international standard*4.
*1. The term “HEMS” is an acronym for “Home Energy Management System.”
*2. The term “ECHONET Lite” refers to communication standards under which household communication networks allow interconnectivity of a variety of IoT home appliances, housing facilities and facilities for generating and storing energy that are manufactured by different companies. As international standards for this technology, ISO/IEC14543-4-3 and IEC62394 have already been published.
*3. These eight devices are: air conditioners, photovoltaic power generators, storage batteries, lighting equipment, water heaters, fuel cells, smart meters and chargers-dischargers for electric vehicles.
*4. Japan submitted the NP to the ISO/IEC JTC 1/SC 25 (Interconnection of information technology equipment).
2. Outline of the proposal
Japan proposed development of a new standard for not only communication protocols but also communication-related operations and behaviors of devices in order to secure interconnectivity and reliability of such equipment in connecting home air conditioners and HEMS controllers.
3. Expected effects
Establishment and publication of the new standard proposed by Japan and dissemination of home air conditioners that meet the standard will encourage people both in Japan and overseas to introduce HEMS into their households, and therefore the standard will contribute to worldwide energy conservation and expansion of markets in the related service industries.
Source: ECHONET Consortium
For further information, please refer to the website below:
Division in Charge
International Electrotechnology Standardization Division, Industrial Science and Technology Policy and Environment Bureau