REQ-2015-0508-Potential_Use_Cases_for_Home_Domain
Potential Use Cases for Home Domain
Group Name: WG1
Source: Yong-Suk Park, KETI, yspark@keti.re.kr
Meeting Date: 2015-01-dd
Agenda Item: Discussion
Introduction
• Purpose
– Present use cases relevant to the home domain from different
organizations in industry
– Discuss the use cases presented for consideration and inclusion in
the Home Domain Enablement TR
– Discover other areas for potential use cases
M2M/IoT Sectors
Source: http://www.beechamresearch.com/article.aspx?id=4
Consumer & Home Domain
Source: http://www.beechamresearch.com/article.aspx?id=9
• Infrastructure, including wiring, network access and home energy management
• Awareness/Safety, including home security and fire alarms, monitoring elderly (not
clinical) and children
• Convenience/Entertainment, including climate control, lighting management,
appliances and entertainment
Home Gateway Initiative
• Home Gateway Initiative (HGI)
– Partner Type 2
– Initial role was to specify requirements and test plans for Home
Gateways (HGs) that support Quality of Service and the rollout of
triple-play, broadband services. The scope has been expanded to
cover the entire spectrum of requirements for devices and service
support in the digital home
– Use Cases for Media Gateway and Home Energy Management
Service
• Source
– http://www.homegatewayinitiative.org/documents/Current_HGI_Pu
blications.asp
HGI – MG Use Cases
• Use Cases for a Media Gateway
– Seamless interaction between the growing variety of video and network enabled
retail devices in the home
– Involve the Media Gateway working in conjunction with a Cloud service
– Some include media consumption outside the home to support customers “on-thego”
HGI – MG Use Cases
• “Follow-me” Use Case
– Enables users to suspend the current content stream and resume it later on any of
their devices, either within or beyond the home
– The MG can control which content is allowed to be streamed outside the home
depending on the nature of the service and license conditions
Source: HGI-BR040 : Use Cases and Business Requirements for a Media Gateway (MG)
HGI – HEM Use Cases
• HEM Use Cases
– Coming principally from Energy@home and BeyWatch projects
• Use Case: Alarms
– The HG can relay or activate alarms on a variety of devices
– The user can set alarm priorities
• Use Case: Home Domain Overload Management
– Individual appliances have their behavior regulated based upon home power
availability
– Aim is to encourage the use of appliances when there is enough power in order to
avoid overloading
• Use Case: Optimize Energy Cost
– The system performs actions in order to reduce and optimize the energy cost
– The optimization of energy cost applies in the case of a multi-tariff contract
– Configuration of a monthly cost limit is also supported
HGI – HEM Use Cases
• Use Case: Alarms
– Notification of potential Home Domain Overload
• The customer is informed promptly when the overall power drawn is near the maximum available
power, hence indicating a potential Home Domain Overload. The notification could be done via
acoustic alarms and/or SMS. The customer can also access the alarm history
– Notification if a user configured limit is reached
• The customer is informed promptly when the overall power drawn exceeds a limit which has been
configured by the user. The notification could be done as per 3.1. The customer can also access the
alarm history
– Black out
• In case of energy blackout the Home Gateway, if equipped with an UPS, is able to guarantee the
correct activity for a minimum time (< 60 s). It can alert the customer about the event with an
alarm (e.g. SMS, phone call)
– Abnormal appliance consumption
• The customer is informed promptly in the case of abnormal appliance consumption (e.g.: possibly
indicating a fridge with a door left open)
HGI – HEM Use Cases
• Use Case: Home Domain Overload Management
– Home Domain Overload management for smart and non-smart appliances
• The system can optimize the use of power in order to avoid Home Domain Overload
• The customer can define/modify the load shedding priorities and strategies in the case of a Home
Domain Overload. This can be applied to smart and non-smart appliances (via Smart Plugs). A
central unit located inside the house will implement the coordination logic. An alarm (e.g.
acoustic) can be generated to notify the customer of any critical condition
• In order to simplify the process, default configurations could be considered
– Request confirmation to start if the available power (in the home) is not sufficient
to run a Smart Appliance
• The system may require explicit confirmation from the customer if the use of a Smart Appliance
may lead to power overload
• The system checks if the total available power in the home is sufficient to run the Smart Appliance,
depending on its power profile estimation, on other Smart Appliances estimated power profile and
on the current total consumption
• The customer is notified that there is not enough available power to run the Smart Appliance and
the customer can make the final decision what to do
HGI – HEM Use Cases
• Use Case: Optimize Energy Cost (1/2)
– Multi-tariff energy use optimization in the case of both smart and non-smart
appliances
• The system provides an optimization of appliance usage in order to optimize energy cost according
to the variable energy tariffs. This Use Case is meaningful for all those appliances which are
activated by the customer and perform a specific operating cycle, such as a washing machine or
dishwasher. The most important exception is the fridge, which operates continuously
• The customer can define/modify the house rules for energy cost optimization in the case of single
or multiple appliances. For any appliance, the customer can set parameters like the operational
time interval allowed for the device (e.g. from 6:00 to 24:00). Smart Plugs could be used to
manage the operational time interval for non-smart appliances (e.g. a boiler). In order to simplify
the process, default configurations could be considered
HGI – HEM Use Cases
• Use Case: Optimize Energy Cost (2/2)
– Automatic time shifting of some phases or functions of the Smart Appliance for
favorable economic conditions
• This Use Case foresees Smart Appliances' capability to delay some of their specific functions
(either activated by the customer or automatically within the cycle) according to current tariff and
energy cost
• The coordination between the different entities in the house and their needs in terms of power
consumption will allow consideration of the overall power consumption forecast and thus better
optimize the energy costs and prevent overloads
– Configure cost limit
• Users may configure their HEM system to limit monthly cost. The system offers a simple way to
configure these limits with a clear and intuitive interface. The HEM system can suggest the
recommended consumption of each application to achieve the configured cost limit. This would
need to be in user friendly terms, e.g. number of washing machine usages
Raising the Floor Consortium
• Raising the Floor Consortium
– Focuses on developing Global Public Inclusive Infrastructure (GPII)
– GPII ensures that everyone who faces accessibility barriers due to
disability, literacy, digital literacy, or aging, regardless of economic
resources, can access and use Internet technology to access
information, communities, things and services for education,
employment, daily living, civic participation, health, and safety
– Provides use cases on assistive technology, auto-personalization and
configuration
• Source
– http://wiki.gpii.net/w/Use_Cases_and_Implementations
GPII – Smart House Use Cases
• Smart Houses in a Foreign Environment
– People that need assistive technology usually have it set up at home
– Applying the same configuration at a foreign place is time-consuming and
wearisome
– Easy application of personal settings in various home environments (in parents’
house, at a friend, in a hotel, etc.) is necessary
• Smart House (home appliances); Multiple Preference Sets
– People in need of assistive technology usually live in a place together with
someone else
– In some cases, the preferences for appliances and devices, set by one might not be
appropriate for other
– Support for multiple preference sets in one environment is necessary
GPII – Smart House Use Cases
• Smart Houses in a Foreign Environment (1/2)
– Helen is a 25 years old student. She lives alone and is worried about the safety of
her home, so she has a security system installed. Helen is heavily dependent on
non-visual feedback from any devices she is using (she completely lost her sight
due to an accident). The security system requires a numeric code to be entered to
be turned on or off. It has a feature of pronouncing the number corresponding to
the button pressed. The A/C system is controlled by a remote control that vibrates
in different patterns as air conditioning is turned on/off or the temperature is
changed. Helen often visits her parents’ home where she needs the same settings
to feel comfortable. They want these settings to be applied only when she visits
them, so they have installed an RFID card reader at the entrance
GPII – Smart House Use Cases
• Smart Houses in a Foreign Environment (2/2)
– Ivan Petrov is 23 years old Bulgarian. He is sent to Germany for experimental
treatment procedures. During his stay there he is been accommodated in modern
Hotel near a clinic. Ivan doesn't understand German and he has difficulties with his
mobility and motor skills (Down Syndrome). The Hotel is equipped with some of
the latest technology advancements in order to accept patients with similar
conditions. The multimedia system (TV, Radio, Stereo), phone, etc. have ability to
personalize their button mapping and language in order to help the patient during
their stay. Ivan uses similar home appliances in his home back in Bulgaria, so he
has his personal settings on his mobile phone and can transfer them to the devices
in the hotel room using NFC
GPII – Smart House Use Cases
• Smart House (home appliances); Multiple Preference Sets
– Albena is 40-year old user. She wears a hearing aid although it doesn’t restore her hearing completely.
She needs a higher volume when using the home multimedia system (TV, DVD player, Home Theatre,
etc.) or for calls on the phone (she is hearing impaired). Also she prefers other types of interaction to
avoid relying only on the sound. The members of her family have normal hearing, and it is not possible
to configure the volume settings or the non-sound indicators once and for all, as there is no specific
setting that would be acceptable for all members
– When she is alone at home, Albena configures the home phone with her preferred settings by
identifying into the system (using her USB identifier, NFC ring or some other way). Once she logs in, the
phone settings automatically changes - the volume during call sets up to her preference level, and
visual indicators for incoming calls turn on
– When she wants to use the Multimedia system (watching TV or using the Home Theatre), she logs into
the system in the same way. Once she is identified, the volume of the system sets up to her preferred
level and subtitles are turned on
– Edge case: as the maximum volume level of the systems is harmful for her family, a priority of user
preferences is set: when other member of the family identifies with the Multimedia system (Albena still
logged in), the volume sets to the normal level, but the subtitles and other visual indicators remain
IETF ACE WG
• IETF Authentication and Authorization for Constrained
Environments (ACE) Working Group
– Focuses on authentication and authorization for constrained
environments
– Provides use cases involving constrained devices with certain
authorization problems to be solved
• Source
– https://tools.ietf.org/wg/ace/draft-ietf-ace-usecases/
ACE – Home Automation Use Cases
• Controlling the Smart Home Infrastructure
– Configuration must be easy and require little effort
– Administration effort needs to be kept at a minimum
– The owners of the automated home want to prevent unauthorized entities from
being able to deduce behavioral profiles from devices in the home network
• Seamless Authorization
– Home Owners want their devices to seamlessly (and in some cases even
unnoticeably) fulfill their purpose
– Usability is important since the necessary authorization related tasks in the
lifecycle of the device (commissioning, operation, maintenance and
decommissioning) likely need to be performed by the home owners who in most
cases have little knowledge of security
ACE – Home Automation Use Cases
• Remotely Letting in a Visitor
– The home owner wants to grant temporary access permissions to a party
– The home owner wants to spontaneously change the home’s access control
policies
– The home owner wants to be able to configure authorization policies remotely
– The home owner wants to spontaneously provision authorization means to visitors
– Authorized Users want to be able to obtain access with little effort
ACE – Home Automation Use Cases
• Controlling the Smart Home Infrastructure
– Alice and her husband Bob own a flat which is equipped with home automation
devices such as HVAC and shutter control, and they have a motion sensor in the
corridor which controls the light bulbs there
– Alice and Bob can control the shutters and the temperature in each room using
either wall-mounted touch panels or with an internet connected device (e.g. a
smartphone). Since Alice and Bob both have a full-time job, they want to be able
to change settings remotely, e.g. turn up the heating on a cold day if they will be
home earlier than expected
– The couple does not want people in radio range of their devices, e.g. their
neighbors, to be able to control them without authorization. Moreover, they don’t
want burglars to be able to deduce behavioral patterns from eavesdropping on the
network
ACE – Home Automation Use Cases
• Seamless Authorization
– Alice buys a new light bulb for the corridor and integrates it into the
home network, i.e. makes resources known to other devices in the
network. Alice makes sure that the new light bulb and her other
devices in the network get to know the authorization policies for the
new device. Bob is not at home, but Alice wants him to be able to
control the new device with his devices (e.g. his smartphone) without
the need for additional administration effort. She provides the
necessary configurations for that
ACE – Home Automation Use Cases
• Remotely Letting in a Visitor
– Alice and Bob have equipped their home with automated connected doorlocks and
an alarm system at the door and the windows. The couple can control this system
remotely
– Alice and Bob have invited Alice’s parents over for dinner, but are stuck in traffic
and can not arrive in time, while Alice’s parents who use the subway will arrive
punctually. Alice calls her parents and offers to let them in remotely, so they can
make themselves comfortable while waiting. Then Alice sets temporary
permissions that allow them to open the door, and shut down the alarm. She wants
these permissions to be only valid for the evening since she does not like it if her
parents are able to enter the house as they see fit
– When Alice’s parents arrive at Alice’s and Bob’s home, they use their smartphone
to communicate with the door-lock and alarm system
Other Potential Use Cases
• Broadband Forum
– BroadbandHome Working Group
• SD-308: Home Network Service Diagnostics Use Cases and Requirements
• http://www.broadband-forum.org/technical/technicalwip.php
• Continua Health Alliance
– Use Case Working Group
• http://www.continuaalliance.org/node/135