Technical Report Document Number


Semantic Device Plug and Play



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Semantic Device Plug and Play

Description


This use case applies with any verticals, below just take home automation as an example. The use case is about when a device is newly registered in a home, it will find its own character and its relationship with its neighbour devices and Things automatically based on semantic information within the M2M system without the interference of human being. For example, the house owner bought a lamp and a switch to the lamp for his house. Both the lamp and switch is enabled with wireless abilities to be able to communicate with the home automation gateway and other devices. The lamp is for the lobby and accordingly the switch is located near the entrance of the lobby. When the house owner has placed the lamp and the switch properly, a simple power-on would make the lamp and the switch work fine.

Source


NEC (ETSI, TTC)

Actors


Home automation service provider: is providing home automation service by providing applications running on home automation devices such as gateway, lamp, switch, TV, air-condition etc.

Home automation management system (HAMS): is a network application.

Device manufacturer: produces devices as M2M nodes.

M2M service provider: provides M2M service acts as a platform where all M2M nodes can register to.

House owner: is a consumer of the home automation service.

Pre-conditions


The house owner has a contract with the home automation service provider for the home automation service. The home automation service provider has a business relationship with the M2M service provider and the device manufacturer. The home automation management system manages all the devices and their relationships registered in the house. Each device has its role and serves fixed services among all home devices.

Triggers


None

Normal Flow


When the house owner buys new devices for his house, the newly bought devices will register to the M2M service provider and expose to the M2M SP its role and functionalities including their semantic descriptions. According to such information, the HAMS will compare the semantic description of the new device with the semantic description of the existing devices in the house and judge their relationships by semantic inference. Then the HAMS will help establish the relationship between the new device and the device in the home and the relationship is maintained in the M2M SP. For example the HAMS finds that the lamp is to be controlled by the switch, it may then bind the status of the switch to the action of the lamp. If the status of the switch is ON, an “ON” command will be sent to the lamp automatically.

Alternative flow


None

Post-conditions


None

High Level Illustration


None

Potential Requirements


  1. The M2M System shall support a semantic data model that is at least common to the vertical industry in which a Thing is used to describe Things registered in the M2M System.

  2. The M2M entity shall be able to expose its semantic description to the M2M System.

  3. If a Thing is capable to expose semantic information to the M2M System the M2M System shall be able to use that information to represent the Thing.

  4. The M2M System shall be able to describe the semantic relationship between Things.


10Transportation Use Cases

Vehicle Diagnostic & Maintenance Report

Description


The Vehicle Service Centre wants to help the vehicle owner to be aware of the status of the vehicle and remind them to maintain the vehicle in a timely manner to avoid any damages.

Hence the Vehicle Service Centre needs to obtain and analyse data from the vehicle periodically. Based on the analysis result, it will notify to the vehicle owner showing what's going on with the vehicle —in simple language and images together with some maintenance suggestions.


Source


HUAWEI Technologies Co., Ltd.

Actors


Vehicle Owner:

By reading the Vehicle Diagnostic & Maintenance Report sent from the Vehicle Service Centre, the vehicle owner would decide whether to maintain his/her vehicle.



Vehicle Service Centre:

It operates a service platform for diagnostics and maintenance of vehicles, obtains and analyzes the diagnostics data from the vehicle. It will also send vehicle Diagnostic & Maintenance Report in e-mail together with maintenance suggestions to the vehicle owner.



Mobile Communication Network Operator:

As the transmission medium, it supports the network services between Vehicle Service Centre and Vehicle for the information transmission.



M2M Device:

It is embedded in a vehicle, which is used to send information to Vehicle Service Centre and implement diagnostics function from Vehicle Service Centre.


Pre-conditions


1. The vehicle supports the diagnostics pre-configured to report the diagnostics data collected from sensors within the vehicle periodically.

2. The vehicle is already ignited


Triggers


None

Normal Flow




Figure 10 43 Vehicle Diagnostics Normal Flow

  1. The vehicle collects the diagnostics data from sensors within the vehicle and sends it to the Vehicle Service Centre. The diagnostics data includes information from Engine and Transmission System, Stability Control System, Air Bag System, Emission System, Antilock Brake System and so on. The information includes tyre pressure, odometer data, life of engine oil, engine and gear-box status, antilock braking system status etc.

  2. The Vehicle Service Centre sends the diagnostics data to the “Vehicle Detection M2M Application”. This M2M application receives and analyzes the diagnostics data.

  3. The “Vehicle Detection M2M Application” finds that the Brake pads need to be replaced. It queries the maintenance services provided by “Vehicle Resolution M2M Application” and gets the information of the company who can provide the components.

  4. The “Vehicle Detection M2M Application” finally sends the Diagnostic & Maintenance Report to the vehicle owner together with the suggested component providers either by email or alert message displayed in the vehicle terminal.

  5. The vehicle owner will decide whether to maintain his/her vehicle based on the Diagnostic & Maintenance Report.

Alternative flow


None

Post-conditions


For normal flow, the vehicle owner maintains his/her vehicle according to the Diagnostic & Maintenance report in time.

High Level Illustration




Figure 10 44 Vehicle diagnostics Normal Flow

Potential Requirements


  1. The M2M application System shall enable the M2M Devices to exchange M2M application to diagnostic data periodically with the M2M Application in the network domain.

  2. The M2M System shall enable the M2M Application to configure the notification interval in the M2M Devices.

  3. The M2M system shall support a mechanism to describe the syntax and semantics format of the M2M application diagnostics data exchanged between the M2M Devices and the M2M Application in the network domain.


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