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 H.785.0 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (10/2014) SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS IPTV multimedia services and applications for IPTV Digital Signage Digital signage: Requirements for disaster in
2、formation services Recommendation ITU-T H.785.0 ITU-T H-SERIES RECOMMENDATIONS AUDIOVISUAL AND MULTIMEDIA SYSTEMS CHARACTERISTICS OF VISUAL TELEPHONE SYSTEMS H.100H.199 INFRASTRUCTURE OF AUDIOVISUAL SERVICES General H.200H.219 Transmission multiplexing and synchronization H.220H.229 Systems aspects
3、H.230H.239 Communication procedures H.240H.259 Coding of moving video H.260H.279 Related systems aspects H.280H.299 Systems and terminal equipment for audiovisual services H.300H.349 Directory services architecture for audiovisual and multimedia services H.350H.359 Quality of service architecture fo
4、r audiovisual and multimedia services H.360H.369 Telepresence H.420H.429 Supplementary services for multimedia H.450H.499 MOBILITY AND COLLABORATION PROCEDURES Overview of Mobility and Collaboration, definitions, protocols and procedures H.500H.509 Mobility for H-Series multimedia systems and servic
5、es H.510H.519 Mobile multimedia collaboration applications and services H.520H.529 Security for mobile multimedia systems and services H.530H.539 Security for mobile multimedia collaboration applications and services H.540H.549 Mobility interworking procedures H.550H.559 Mobile multimedia collaborat
6、ion inter-working procedures H.560H.569 BROADBAND, TRIPLE-PLAY AND ADVANCED MULTIMEDIA SERVICES Broadband multimedia services over VDSL H.610H.619 Advanced multimedia services and applications H.620H.629 Ubiquitous sensor network applications and Internet of Things H.640H.649 IPTV MULTIMEDIA SERVICE
7、S AND APPLICATIONS FOR IPTV General aspects H.700H.719 IPTV terminal devices H.720H.729 IPTV middleware H.730H.739 IPTV application event handling H.740H.749 IPTV metadata H.750H.759 IPTV multimedia application frameworks H.760H.769 IPTV service discovery up to consumption H.770H.779 Digital Signage
8、 H.780H.789 E-HEALTH MULTIMEDIA SERVICES AND APPLICATIONS Interoperability compliance testing of personal health systems (HRN, PAN, LAN and WAN) H.820H.859 Multimedia e-health data exchange services H.860H.869 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T H.785.0
9、 (10/2014) i Recommendation ITU-T H.785.0 Digital signage: Requirements for disaster information services Summary Recommendation ITU-T H.785.0 describes overall aspects and high-level requirements for disaster information services provided through digital signage. The main services expected to be ap
10、plied are early warning to lessen damages, reports of up-to-the-minute situations and announcements of traffic status/evacuation sites. The requirements are categorized into eight areas: general, operational management, application/delivery, contents, security, network, terminal device/display and a
11、ccessibility. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T H.785.0 2014-10-14 16 11.1002/1000/12247 Keywords Digital signage, disaster information service. _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, follo
12、wed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T H.785.0 (10/2014) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technolog
13、ies (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 standardizing telecommunications on a worldwide basis. The World Telecommun
14、ication 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 by the procedure laid down in WTSA Resolution 1. In some areas o
15、f 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 both a telecommunication administration and a recognized operati
16、ng 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 when all of these mandatory provisions are met. The words “shall“
17、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 PROPERTY RIGHTSITU draws attention to the possibility that the practic
18、e 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 by ITU members or others outside of the Recommendation developme
19、nt 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 this may not represent the latest information and are therefore
20、strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T H.785.0 (10/2014) iii Table of Contents Page 1 Scope . 1 2
21、References . 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 2 5 Conventions 3 6 Overview . 3 6.1 General disaster information services 3 6.2 Consideration on content of disaster information 5 6.3 Flows of disaster information
22、 . 8 6.4 Types of DS terminal devices . 9 7 Requirements 9 7.1 General . 9 7.2 Operational management 11 7.3 Application/delivery . 12 7.4 Content . 12 7.5 Security . 13 7.6 Network 13 7.7 Terminal device/display . 13 7.8 Accessibility requirements . 14 Appendix I A sample workflow in disaster situa
23、tions 15 Appendix II General overview of terminology based on the United Nations International Strategy for Disaster Reduction 17 Bibliography. 19 Rec. ITU-T H.785.0 (10/2014) 1 Recommendation ITU-T H.785.0 Digital signage: Requirements for disaster information services 1 Scope This Recommendation a
24、ddresses the high-level requirements for digital signage services under disaster situations. Disaster informational services contain three aspects: 1) Early warning to lessen damages caused by a disaster 2) Reporting up-to-the minute situations on disaster 3) Announcements of traffic status or evacu
25、ation sites. 2 References The 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 subje
26、ct to revision; users of this 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 w
27、ithin this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T H.780 Recommendation ITU-T H.780 (2012), Digital signage: Service requirements and IPTV-based architecture. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following te
28、rms defined elsewhere: 3.1.1 alert b-ITU-T X.674: A warning or alarm message concerning an impending danger or problem. 3.1.2 alert agency b-ITU-T X.674: A national, regional or international entity responsible for the management of alerts. 3.1.3 content ITU-T H.780: A combination of audio, still im
29、age, graphic, video, or data. NOTE A variety of formats are classified as “data“ (e.g., text, encoded values, multimedia description language introduced by b-ITU-T H.760). 3.1.4 digital signage (DS) ITU-T H.780: A system that sends information, advertising and other messages to electronic devices (e
30、.g., displays, speakers) in accordance with the time of day and the location of the display, or the actions of audience. Contents and their relevant information such as display schedules are delivered over networks. 3.1.5 multimedia b-ITU-T T.174: The property of handling several types of representa
31、tion media. 3.1.6 service provider b-ITU-T M.1400: A general reference to an operator that provides telecommunication services to customers and other users either on a tariff or contract basis. A service provider can optionally operate a network. A service provider can optionally be a customer of an
32、other service provider. 2 Rec. ITU-T H.785.0 (10/2014) NOTE Typically, the service provider acquires or licenses content from content providers, and packages this into a service that is consumed by end-users. 3.1.7 terminal device (TD) b-ITU-T Y.1901: An end-user device which typically presents and/
33、or processes the content, such as a personal computer, a computer peripheral, a mobile device, a TV set, a monitor, a VoIP terminal or an audio-visual media player. 3.1.8 universal design b-ITU-T Y.1901: The design of the products and environments to be useable by all people, to the greatest extent
34、possible by including accessibility features in the original design to prevent the need for adaptation after deployment. NOTE The intent of universal design is to simplify life for everyone by making products, communications, and the built environment more usable by as many people as possible at lit
35、tle or no extra cost. Universal design benefits people of all ages and abilities. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 reconstruction phase: A later stage of disaster recovery, when definitive repair of the infrastructure affected by a disas
36、ter is done. 3.2.2 restoration phase: The earlier stage of disaster recovery, when the first steps to restore services to the population affected by a disaster are taken. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: DS Digital Signage ETS Emergency
37、Telecommunication Service ICT Information and Communication Technology IPTV Internet Protocol Television NFC Near Field Communication NGN Next Generation Networks PGP Pretty Good Privacy RFID Radio Frequency Identification S/MIME Secure/Multipurpose Internet Mail Extensions SVG Scalable Vector Graph
38、ics TD Terminal Device TLS Transport Layer Security UPS Uninterruptable Power Supply Rec. ITU-T H.785.0 (10/2014) 3 5 Conventions In this Recommendation: The keywords “is required to“ indicate a requirement which must be strictly followed and from which no deviation is permitted, if conformance to t
39、his Recommendation is to be claimed. The keywords “is recommended“ indicate a requirement which is recommended but which is not absolutely required. Thus, this requirement need not be present to claim conformance. The keywords “can optionally“ indicate an optional requirement that is permissible, wi
40、thout implying any sense of being recommended. This term is not intended to imply that the vendors implementation must provide the option, and the feature can be optionally enabled by the network operator/service provider. Rather, it means the vendor may optionally provide the feature and still clai
41、m conformance with this Recommendation. 6 Overview 6.1 General disaster information services Information and communication technology (ICT) services treating disaster information are expected to deliver reliable content to people both swiftly and surely, and in a manner that may differ from usual de
42、livery. The content delivered is based on the affected locations and/or damage-levels. From the viewpoint of disseminating content to a large number of people, it is desirable that ICT services be used daily and that they be well recognized by the masses. It is also preferable to provide the disaste
43、r information content through diverse communication methods (e.g., terrestrial broadcasting, cellular services, IPTV). NOTE 1 b-TR-FG DR to give up-to-date reports on disaster conditions; to provide the status of public infrastructure in and around affected areas; to give guidance on evacuation rout
44、es to shelters; and to report on the safety of victims. That is, DS services are expected to continuously provide disaster-relevant information over a period of time: before disasters, after disasters, in the restoration phase (i.e., an early stage of disaster recovery), and in the reconstruction ph
45、ase (i.e., a later stage of disaster recovery). Hence, DS terminal devices may be also installed in locations serving as potential evacuation shelters/places. Classifying service locations in times of disaster is necessary because the content may be altered depending on audience location, which can
46、significantly relate to the degree of damage from the disaster. 4 Rec. ITU-T H.785.0 (10/2014) The following types of service locations can be assumed for DS services at or during a disaster: in shelters, where information on the current situation of a disaster and announcements from the local gover
47、nment can be delivered to evacuees; in places close to residential areas, where information on disaster situations and on evacuation details can be delivered to terminal devices and targeted to people living in those areas; in public places, where information on disaster situations and on evacuation
48、 plans can be delivered to persons using public facilities; in tourist resorts, where information on disaster situations and on evacuation plans can be delivered to tourists; at work places, where information on disaster situations and on evacuation plans can be delivered to employees; on roads, whe
49、re information on disaster situations and on evacuation plans can be delivered to persons in cars. NOTE 2 b-ETSI TS 102 182 introduces some service scenarios in emergency telecommunications. The scenarios include a service to citizens in their own dwelling; this Recommendation especially pays attention, however, to outside-the-home services in public spaces including evacuation shelters/places. In addition, it is useful to examine the requirements of DS services duri
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