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14:15:52 <dom> Meeting: Web of Things (WoT) Status Update and Demos  - TPAC 2022 breakout
14:15:54 <dom> Chair: Michael_McCool
14:15:56 <dom> Agenda:  https://www.w3.org/events/meetings/03807e2f-01bb-4572-8261-3fcde9c9cf3e#agenda
14:15:58 <dom> RRSAgent, make log public
14:16:00 <dom> RRSAgent, this meeting spans midnight
14:19:26 <dom> RRSAgent, stay
14:19:28 <dom> Zakim, stay
14:19:28 <Zakim> I don't understand 'stay', dom
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16:13:39 <dom> agenda+ breakout
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21:56:05 <kaz> Meeting: Web of Things (WoT) Status Update and Demos
21:56:33 <kaz> present+ Kaz_Ashimura, Geunhyung_Kim, David_Ezell
21:58:25 <kaz> present+ Maria_Mandlis
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22:00:49 <Geun-Hyung_Kim> present+
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22:01:09 <bneedham> p+
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22:02:48 <kaz> present+ Javad_Chamanara
22:03:11 <kaz> present+ Pierre, Alexandre
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22:03:27 <dezell> present+
22:03:33 <kaz> scribenick: kaz
22:05:29 <kaz> present+ Carey_Ferro, Hiroki_Endo, Hromu_Ogawa, Hiroshi_Fujisawa, Kunihiko_Toumura, Osamu_Nakamura, Tomoaki_Mizushima
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22:06:01 <kaz> present+ Takuya_Sakamoto
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22:06:10 <pchampin> present+
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22:06:23 <dezell> present+ David_Ezell
22:06:27 <kaz> rrsagent, make log
22:06:27 <RRSAgent> I'm logging. I don't understand 'make log', kaz.  Try /msg RRSAgent help
22:06:30 <kaz> rrsagent, make log public
22:06:32 <careyf> present+ Carey_Ferro
22:06:36 <kaz> rrsagent, draft minutes
22:06:36 <RRSAgent> I have made the request to generate https://www.w3.org/2022/09/14-wot-demo-minutes.html kaz
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22:07:56 <kaz> agenda: https://www.w3.org/wiki/TPAC/2022/SessionIdeas#Web_of_Things_.28WoT.29_Status_Update_and_Demos
22:08:09 <kaz> chair: McCool
22:08:41 <kaz> topic: Overview
22:08:51 <kaz> mm: would adapt Web tech to IoT
22:09:03 <kaz> ... fragmentation issue with IoT
22:09:18 <kaz> ... mashing up various IoT mechanisms by WoT
22:10:06 <kaz> i|would|-> https://github.com/w3c/wot/blob/main/PRESENTATIONS/2022-09-hybrid-f2f/2022-09-14-WoT-Overview-McCool.pdf McCool's slides|
22:10:43 <kaz> ... WoT Thing Description 1.0 REC published during the previous Charter
22:10:52 <kaz> ... we're extending its capability now
22:11:07 <kaz> ... [Descrptive Interoperability: TDs]
22:11:32 <kaz> ... [Discovery]
22:11:47 <kaz> ... The other thing for this Charter period is WoT Discovery
22:12:04 <kaz> ... obtain TD of interest from devices
22:12:18 <kaz> ... not limited to local network
22:12:28 <kaz> ... 2-phase access
22:12:44 <kaz> ... introduction and exploration
22:13:03 <kaz> ...open and controlled, respectively
22:13:16 <kaz> ... variety of introduction mechanisms
22:13:25 <kaz> ... URL, DID ,QR code, etc.
22:13:44 <kaz> ... can be a directory service
22:13:51 <kaz> ... [Orchestration]
22:14:01 <kaz> ... consume TD
22:14:17 <kaz> ... node-gen based on Node-RED
22:14:30 <kaz> ... and node-wot uisng the WoT Scripting API
22:14:34 <kaz> ... [Deliverables]
22:14:40 <kaz> ... links to the current EDs
22:15:01 <kaz> ... Architecture 1.1, D 1.1, Discovery and Profile
22:15:11 <kaz> ... also Notes
22:15:16 <kaz> ... [Recent Activity]
22:15:34 <kaz> ... focused on testing for CR/PR transition
22:15:48 <kaz> ... commercial usages
22:15:58 <kaz> ... directory implemetation
22:16:09 <kaz> ... [Applications]
22:16:36 <kaz> ... Takenaka Corporation, Siemens, Netzo and ditto project
22:16:52 <kaz> ... [Resources and Contacts]
22:16:59 <kaz> ... www.w3.org/WoT
22:17:03 <kaz> topic: Demos
22:17:09 <kaz> mm: switch to demos
22:17:54 <kaz> subtopic: McCool/Ezell - Retail, Home Assistant Integration, Node-RED, Discovery
22:18:22 <kaz> -> https://github.com/w3c/wot/blob/main/PRESENTATIONS/2022-09-hybrid-f2f/2022-05-WoT-Connexxus-McCool.pdf McCool's slides
22:18:34 <kaz> mm: convenient stores and gas stations
22:18:55 <kaz> ... [Outline]
22:18:59 <kaz> ... [Applications]
22:19:09 <kaz> .... [Test Scenario: Cooler Monitor]
22:19:16 <kaz> s/..../.../
22:19:42 <kaz> ... devices provided by different vendors
22:19:56 <kaz> ... probably would have a local proxy
22:20:07 <kaz> ... various protocol translation
22:21:06 <kaz> ... [Why Hubs]
22:21:12 <kaz> ... [Desired Behavior]
22:21:18 <kaz> ... door open alert, etc.
22:21:22 <kaz> ... [Devices]
22:22:27 <kaz> ... test devices and commercial devices
22:22:35 <kaz> ... [Video: System Demo]
22:22:51 <kaz> ... (shows a video uploaded to YouTube)
22:23:15 <kaz> ... both commercial devices and test devices work collaboratively
22:23:37 <kaz> ... very simple application
22:23:54 <kaz> ... [Two implementation]
22:24:09 <kaz> ... home assistant native rules, Node RED
22:24:31 <kaz> ... home assistant based on an opensource
22:24:56 <kaz> ... automation rules underneath with YAML
22:25:08 <kaz> ... [Node-RED/WoT Discovery]
22:25:56 <kaz> ... [Node-RED subflows]
22:26:32 <kaz> ... fetch TD, extract payload
22:27:06 <kaz> subtopic: Toumura - Discovery (mDNS-SD, TD Directory)
22:27:28 <kaz> present+ Jinkyu
22:27:50 <kaz> kt: [Node-RED - WoT Discovery Integration
22:28:59 <kaz> ... two tools added: node generator (node-gen) and Thing Explorer
22:29:41 <kaz> ... Explorer can be easily added to the ordinary Node RED environment as plugin
22:29:53 <kaz> ... [Supported Discovery Methods]
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22:30:14 <kaz> ... several methods available
22:31:34 <kaz> ... [Visualize relationship between Thing]
22:31:55 <kaz> ... [Visualization Example=
22:32:01 <kaz> s/=/]/
22:32:19 <kaz> ... black circle is a Thing
22:32:49 <kaz> ... the arcs are relationship between Things
22:33:09 <kaz> ... [Demo]
22:34:36 <kaz> ... generate nodes by dragging them
22:35:06 <kaz> ... configure relationship
22:35:21 <kaz> ... [Lessons Learned]
22:36:06 <kaz> ... "tdid" contains the "id" of the targe TD
22:36:16 <kaz> s/targe/target/
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22:36:58 <kaz> subtopic: Endo - NHK Hybridcast Connect
22:38:15 <kaz> ... [Outline]
22:38:19 <kaz> ... objective
22:38:25 <kaz> ... previous pposed media use cases
22:38:26 <kaz> ... demo
22:38:39 <kaz> ... WoT-enabled Hybridcast Connect
22:38:59 <kaz> ... commercial TV also available for that purpose
22:39:05 <kaz> ... [Objective]
22:39:39 <kaz> ... integration of contents from broadcast wave and Web
22:39:49 <McCool> q?
22:40:20 <McCool> (please use "q+" if you have a question, and we will take them in order when Endo-san is done)
22:40:28 <kaz> ... [Previous Proposed Media Use Case from NHK]
22:40:43 <kaz> ... TPAC 2019, 2020 and 2021
22:41:27 <kaz> ... commercial TV certified by IPTV Forum available
22:41:32 <kaz> ... [Demo]
22:41:46 <kaz> ... TV shows a soccer program
22:42:11 <kaz> ... but air cleaner make noise
22:42:16 <kaz> s/make/makes/
22:43:36 <kaz> ... if the TV receives event message to "replay" many times, the air cleaner will reduce the noise
22:44:06 <McCool> q?
22:44:07 <kaz> q+
22:44:26 <kaz> ... [Demo System Configuration]
22:44:42 <kaz> ... TV and Node RED app
22:45:06 <kaz> s/ and/,/
22:45:16 <kaz> s/app/app, and Node RED dashboard UI/
22:46:59 <kaz> q+ to ask (1) any gateway between tv and UI, and (2) how to specify the rules
22:47:15 <kaz> ... [WoT-enabled Hybridcast Connect]
22:48:47 <kaz> ... Hybridcast app on TV - Hybridcast Conect WoT node - user app (as a WoT Consumer) - ECHONET WoT node - air cleaner emulator
22:49:15 <kaz> ... broadcasting services can be cnnected to various devices now!
22:49:33 <kaz> ... various possible use cases for WoT
22:49:38 <McCool> q?
22:50:29 <kaz> ... [Open source software tools]
22:50:51 <McCool> q+
22:50:59 <kaz> scribenick: McCool
22:51:00 <kaz> ack k
22:51:00 <Zakim> kaz, you wanted to ask (1) any gateway between tv and UI, and (2) how to specify the rules
22:51:18 <McCool> kaz: wondering abuot connection mechanism;
22:51:29 <McCool> ... but can you go back to connections diagram, slide 9
22:51:39 <McCool> ... use have a user app as the WoT consumer
22:51:54 <McCool> ... air cleaner is a Thing, using ECHONET
22:52:20 <McCool> ... what is the hybridcast TV itself?  Is it an app?
22:52:24 <dezell> q+ to remark on similarities of the roles between "Hybridcast Connect" and "Home Assistant" in two demos.
22:52:58 <McCool> mm: there is a TD for the TV, so is it a Thing?
22:53:21 <McCool> endo: in this demo scenario, tv can emit information only
22:53:59 <McCool> kaz: so tv could also automatically repeat based on noise, for example?
22:54:39 <McCool> kaz: second question, was how to specify rules
22:55:04 <McCool> ... depending on the user application?  just using node-RED?  JS?  What is your model?
22:55:23 <McCool> endo: this demo is just a very simple if-then algorithm
22:56:09 <kaz> q?
22:56:18 <kaz> scribenick: kaz
22:56:33 <kaz> mm: required by user requiring rules
22:57:04 <kaz> ... maybe the smart tv can make prompt to the user asking what to do
22:57:10 <kaz> ... potentially
22:57:27 <kaz> endo: yes, that's possible
22:57:50 <kaz> ... this time we used simple replay scenario but some kind of schema model could be applied
22:58:12 <kaz> ... and the use app can catch user's input
22:58:27 <kaz> mm: question for Toumura-san then
22:58:35 <kaz> ... could you please pick up your slides?
22:58:50 <kaz> ... local area network applications
22:58:59 <kaz> ... how to make that unique?
22:59:10 <kaz> ... you're using URN as an ID
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22:59:18 <kaz> ... also allows DID
22:59:37 <kaz> ... what can be used instead of HTTP URL?
22:59:53 <kaz> ... raising an interesting point
23:00:08 <kaz> ... related to an issue on  global DNS and CA
23:00:22 <kaz> kt: difficult to handle local network id
23:00:57 <kaz> mm: hostname is also kind of dangerous
23:01:06 <kaz> ... need to avoid collisions
23:01:37 <kaz> kt: if we use some random ID, would get another kind of problem
23:01:40 <kaz> mm: right
23:01:55 <kaz> ... let's have more discussion about IDs
23:02:08 <kaz> ... HTTPS on browsers depend on CAs
23:02:20 <kaz> q?
23:02:24 <kaz> ack m
23:02:38 <kaz> ack d
23:02:38 <Zakim> dezell, you wanted to remark on similarities of the roles between "Hybridcast Connect" and "Home Assistant" in two demos.
23:02:47 <kaz> de: great demos
23:02:54 <kaz> ... sort of same pattern
23:03:10 <kaz> ... more or less, smart assistant as home gateway
23:03:27 <kaz> ... Endo-san used Node RED
23:03:32 <kaz> ... that patter makes sense
23:03:43 <kaz> ... Node RED plays important role
23:03:48 <kaz> s/role/role for WoT/
23:03:57 <kaz> ... the other thing
23:04:33 <kaz> ... a question about how this mechanism works with browsers
23:04:57 <kaz> ... collaboration would be nice
23:05:00 <kaz> q+
23:05:27 <kaz> mm: we need to look at trust management, etc.
23:06:06 <kaz> kaz: and we should continue with the DAS WG guys as well :)
23:06:08 <kaz> [adjourned]
23:06:09 <kaz> ack k
23:06:14 <kaz> rrsagent, make log public
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23:06:18 <kaz> rrsagent, draft minutes
23:06:18 <RRSAgent> I have made the request to generate https://www.w3.org/2022/09/14-wot-demo-minutes.html kaz
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22:04:01 <dom> RRSAgent, bye
22:04:01 <RRSAgent> I see no action items