1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T G.9958 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2018) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Access networks In premises networks Generic architecture of home networks for energy m
2、anagement Recommendation ITU-T G.9958 ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERISTICS COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERIST
3、ICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC LINES G.400G.449 COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450G.499 TRANSMISSIO
4、N MEDIA AND OPTICAL SYSTEMS CHARACTERISTICS G.600G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 DIGITAL NETWORKS G.800G.899 DIGITAL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 MULTIMEDIA QUALITY OF SERVICE AND PERFORMANCE GENERIC AND USER-RELATED ASPECTS G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS
5、 G.6000G.6999 DATA OVER TRANSPORT GENERIC ASPECTS G.7000G.7999 PACKET OVER TRANSPORT ASPECTS G.8000G.8999 ACCESS NETWORKS G.9000G.9999 Metallic access networks G.9700G.9799 Optical line systems for local and access networks G.9800G.9899 In premises networks G.9900G.9999 For further details, please r
6、efer to the list of ITU-T Recommendations. Rec. ITU-T G.9958 (03/2018) i Recommendation ITU-T G.9958 Generic architecture of home networks for energy management Summary Recommendation ITU-T G.9958 specifies functional definitions of components and networks to provide energy management services in th
7、e home. It also specifies home network configurations and requirements for these services. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T G.9958 2018-03-16 15 11.1002/1000/13557 Keywords Energy management, home network, IoT. * To access the Recommendation, type the URL http
8、:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T G.9958 (03/2018) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the fiel
9、d of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizi
10、ng telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered
11、by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate
12、both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved wh
13、en all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPER
14、TY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted
15、by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that
16、this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2018 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. I
17、TU-T G.9958 (03/2018) iii Table of Contents Page 1 Scope . 1 2 References . 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 3 5 Conventions 3 6 Network configurations 3 6.1 Summary . 3 6.2 Monitor of power consumption 5 6.3 Mo
18、nitor and control of power consumption through a utility network 5 6.4 Monitor and control of power consumption using a general purpose network . 7 Appendix I A use case of real deployment in Japan . 12 I.1 Definitions of service routes . 12 I.2 Feature requirements of Route B 13 I.3 Example of comm
19、unication protocols 13 Bibliography. 15 iv Rec. ITU-T G.9958 (03/2018) Introduction Standardization of IoT (Internet of Things) has been promoted actively in ITU-T. Q15/15 in ITU-T has discussed the standardization of communication networks for power grids. One of the activities in Q15/15 has been s
20、pecifications of smart meter networks as one of the promising applications in IoT. This Recommendation specifies generic architecture for home energy management services using smart meter networks and provides an example of real deployment for such services. In these services data protection is an i
21、mportant requirement. This Recommendation mentions security features used to provide secure communication such as isolation of traffic flows. However, the specification of these security features is out of the scope of this Recommendation. Rec. ITU-T G.9958 (03/2018) 1 Recommendation ITU-T G.9958 Ge
22、neric architecture of home networks for energy management 1 Scope This Recommendation specifies home network configurations and requirements for the provision of energy management services in the home. The proposed set of network configurations is also expected to result in a communication framework
23、 suitable for a broader set of other IoT applications. The relationship between this Recommendation and other Recommendations on IoT and home networks is described as follows. IoT generic architecture and requirements have been specified in ITU-T Y.4000 and ITU-T Y.4113. Architecture and requirement
24、s in IP home networks connected to broadband wide area networks have been specified in ITU-T G.9970 and ITU-T G.9971. Home energy management has been described in ITU-T Y.4409. This Recommendation is based on the Recommendations mentioned above and does not introduce any conflicts. 2 References The
25、following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this
26、Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does
27、 not give it, as a stand-alone document, the status of a Recommendation. ITU-T G.9970 Recommendation ITU-T G.9970 (2009), Generic home network transport architecture. ITU-T G.9971 Recommendation ITU-T G.9971 (2010), Requirements of transport functions in IP home networks. ITU-T Y.4000 Recommendation
28、 ITU-T Y.4000/Y.2600 (2012), Overview of the Internet of things. ITU-T Y.4113 Recommendation ITU-T Y.4113 (2016), Requirements of the network for the Internet of things. ITU-T Y.4409 Recommendation ITU-T Y.4409 (2015), Requirements and architecture of the home energy management system and home netwo
29、rk services. 3 Definitions The following definitions specify the functionality of various components and networks with regard to home energy management services and do not include implementation details. 3.1 Terms defined elsewhere None. 2 Rec. ITU-T G.9958 (03/2018) 3.2 Terms defined in this Recomm
30、endation This Recommendation defines the following terms: 3.2.1 Components 3.2.1.1 HEMS controller: A home energy management system (HEMS) controller is a networking device used to connect home appliances to the home network through a variety of IP and/or non-IP network interfaces. It provides intel
31、ligent functions, such as the monitoring of real-time and/or cumulative power consumption, feedback to users for ecology, etc., for energy management services in conjunction with a home gateway and/or smart meter. 3.2.1.2 HEMS-managed home appliances: HEMS-managed home appliances are devices associa
32、ted with a HEMS controller by IP or non-IP interface. They are managed and controlled by the HEMS controller. Examples of such managed appliances include energy management facilities in the home, such as power conditioners for a photovoltaic (PV) power system, fuel cells, storage batteries, electric
33、 vehicles (EV) / plug-in hybrid vehicles (PHV), air conditioners, lighting equipment, water heaters etc. 3.2.1.3 home gateway: A home gateway is a networking device designated for use in a home which associates a general-purpose network and one or more general-purpose home networks and is responsibl
34、e for the transfer of information between these networks. A home gateway may provide other user-oriented services such as video-on-demand, in addition to generic communication functionality. 3.2.1.4 non-HEMS appliance: A non-HEMS appliance is a device connected to the home network which is not manag
35、ed by a HEMS controller. 3.2.1.5 smart meter: A smart meter is an electronic device that records consumption of electric energy in periodic intervals of an hour (or less) and reports this information to the electric utility for monitoring and billing. A smart meter enables two-way communication betw
36、een the meter and the utility company. In addition to the function of automated meter reading it also can receive and handle control information regarding energy management from the utility, and report power quality monitoring information. The smart meter does not provide open access to its function
37、ality to the users, regardless of its physical installation location (outdoor plant, in-building, in-home etc.). 3.2.2 Networks 3.2.2.1 dedicated home network: A dedicated home network is a local area network deployed in a home in order to connect specific managed home appliances. It is deployed as
38、either a physical network or a logical network and it is independent of the general purpose home network. 3.2.2.2 general purpose home network: A general purpose home network is a local area network deployed in a home. This network provides wired and/or wireless connectivity to any device in the hom
39、e, utilizing mainly IP technologies. This network is positioned as a backbone network in a home for general purpose use. 3.2.2.3 general purpose network: A general purpose network is a wide area network (WAN) which can be used for any legitimate purpose and does not impose any restrictions regarding
40、 its usage. A general purpose network must provide Internet access and may provide additional services such as telephony and video distribution services. 3.2.2.4 utility network: In this Recommendation, a utility network is deployed and managed by an electric utility company for the purposes of elec
41、tric energy management, monitoring and billing. Rec. ITU-T G.9958 (03/2018) 3 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: AEM Advanced Energy Management EV Electric Vehicle FTTH Fibre To The Home HEMS Home Energy Management System HES Head End Syst
42、em HGW Home Gateway IoT Internet of Things MDMS Meter Data Management System PHV Plug-in Hybrid Vehicle PV Photo-Voltaic WAN Wide Area Network 5 Conventions In clause 6, the scopes of the descriptions on “Physical configuration“ and “Communication path“ are defined as follows. “Physical configuratio
43、n“: physical connections between the components defined in clause 3. These connections can be categorized by a combination of the networks described in clause 3. “Communication path“: communication flows of data between components across networks. A communication path is a logical configuration prov
44、ided by a combination of physical configurations. Various services for home energy management can be provided over communication paths. 6 Network configurations Home energy management services are provided using the following network configurations. These configurations are the most representative n
45、etwork configurations used to offer home energy management services. Home energy management services must utilize secure communications. This Recommendation mentions the isolation of communication paths as a means to achieve secure communications among various components and assumes that all network
46、s and components provide adequate security features. For example, communication for home energy management services is physically separated from other communications by person, devices and application software for cybersecurity reasons. These configuration is to prevent hackers from injecting harmfu
47、l data and/or programs into the utility network through home network. However, secure communication protocols, their implementation, as well as the set of security features that must be provided by components and networks, are outside the scope of this Recommendation. 6.1 Summary The relationship be
48、tween components and networks are described in Table 1. This table indicates physical configuration. Each row and column in Table 1 denote “network“ and “component“, respectively. An “x“ mark denotes “connection“. Grey rows denote the home network parts. 4 Rec. ITU-T G.9958 (03/2018) Table 1 Physica
49、l configuration of components and networks Smart meter HEMS C HEMS AP HGW Descriptions Purpose Utility Net X 6.2 Electric power companies measure electric supply and/or electricity sales with the use of one smart meter per contractor. No HEMS controller is present. Gen Net G HNW D HNW Utility Net X 6.3.1 Intelligent energy management services, such as a demand-response service, are provided by an installed HEMS controller. Gen Net G HNW X X D HNW X X Utility Net X 6.3.2 Gen Net G HNW D HNW X X
