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IPSO Smart Object Guideline Smart Objects Expansion Pack Internet Protocol for Smart Objects (IPSO) Alliance Technical Guideline IPSO Smart Object Committee 27 October, 2015 Copyright 2015 IPSO Alliance ©2015 IPSO Alliance 1

1. Introduction The availability of Internet Protocol (IP) on constrained devices with memory sizes of 16 kilobytes or less, including IPV6 and 6LowPAN, has made possible a new kind of interoperability for connected devices and Smart Objects. The IETF specify a set of standard protocols for IP-enabled networks in Constrained Resource Environments (CoRE), including the Constrained resource Application Protocol [2] (CoAP, RFC 7252) applicable to low power and low connection bandwidth devices. CoAP is an application protocol for machines and connected devices, as http is for web browsers, but designed specifically for machine interaction and operation over networks of constrained devices. IPSO Smart Object Guidelines provide a common design pattern, an object model, that can effectively use the IETF CoAP protocol to provide high level interoperability between Smart Object devices and connected software applications on other devices and services. Originally based on OMA LWM2M [1] Object model, IPSO Objects expand the definition it by means of reusable resources. IPSO Smart Objects can be registered with the OMA Name Authority (OMNA) enabling some degree of compliance between existing LWM2M and IPSO ones. The first set of 18 Smart Objects were intended as a “Starter Pack” and as example of how to use Smart Objects on some application specific use cases. To complement the initial set of objects, this new IPSO Smart Object Expansion Pack was created. The Expansion Pack covers a new set of 16 Common Template sensors, 6 Special template sensors, 5 Actuators and 6 Control switch types. Some of the new objects are generic in nature, such as voltage, altitude or percentage, while others are more specialized like the Color Object or the Gyrometer Object. New Actuators and Controllers are defined such as timer or buzzer and Joystick and Level. All of these objects were found to be necessary on a variety of use case domains. The IPSO Alliance is committed to making it easy for people to create new objects based on their use case needs, while promoting reusable and cross-domain standards to as great an extent as is practical. ©2015 IPSO Alliance 2

2. IPSO Smart Object Summary IPSO Smart Objects are based on the object model specified in OMA LightWeight M2M [1] Chapter 6, Identifiers and Resources. An IPSO Smart Object is a specified collection of reusable resources (See Table 2, Reusable Resources) that has a well-known object ID (See Table 1, Smart Objects) and which represents a particular type of physical sensor, actuator, connected object or other data source. The reusable resources, which make up the Smart Object, represent static and dynamic properties of the connected physical object and the embedded software contained therein. This document defines a set of IPSO Smart Objects, which conform to the OMA LWM2M Object Model, and which can be used as data objects, or web objects, to represent common sensors, actuators, and data sources. Table 1 Summarizes the Objects defined by this Technical Guideline. ©2015 IPSO Alliance 3

Table 1. Smart Objects defined by this Technical Guideline Type Common Template Sensors Special Template Sensors Actuators Controls Object Voltage Current Frequency Depth Percentage Altitude Load Pressure Loudness Concentration Acidity Conductivity Power Power Factor Rate Distance Energy Direction Time Gyrometer Color GPS Location Positioner Buzzer Audio Clip Timer Addressable Text Display On/Off Switch Push Button Level Control Up/Down Control Multistate Selector Multiple Axis Joystick Object ID 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3346 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3347 3343 3344 3348 3345 ©2015 IPSO Alliance 4

3. Common Template Sensors The following subsections include the new IPSO Objects and their Descriptions. The following Objects use a common template with the same default resource structure shared by all of the basic objects. Resources: Resource Name Resource Descriptions Mandatory Units Multiple Instances? Type Range or Enumeration Defined by “Units” resource. ID 5700 Access Type R No Mandatory Float Sensor Value Units 5701 R No Optional String Last or Current Measured Value from the Sensor Measurement Units Definition e.g. “Cel” for Temperature in Celsius. The minimum value measured by the sensor since power ON or reset The maximum value measured by the sensor since power ON or reset The minimum value that can be measured by the sensor The maximum value that can be measured by the sensor Reset the Min and Max Measured Values to Current Value 5601 R No Optional Float 5602 R No Optional Float 5603 R No Optional Float 5604 R No Optional Float Same as Measured Value Same as Measured Value Same as Measured Value Same as Measured Value Same as Measured Value Same as Measured Value Same as Measured Value Same as Measured Value 5605 E No Optional Min Measured Value Max Measured Value Min Range Value Max Range Value Reset Min and Max Measured Values ©2015 IPSO Alliance 5

Access Type R,W Multiple Instances? No Mandatory Type Optional Float 5750 R,W No Optional String Resource Name Resource ID 5535 Calibration Offset Application Type Range or Enumeration Units Descriptions Read or Write the calibration offset value The application type of the sensor or actuator as a string depending on the use case. IPSO Object: Voltage 3.1 Description: This IPSO object should be used with voltmeter sensor to report measured voltage between two points. It also provides resources for minimum and maximum measured values, as well as the minimum and maximum range that can be measured by the sensor. An example measurement unit is volts (ucum: V). Object Info: Object Object ID Object URN Voltage 3316 urn:oma:lwm2m:ext:3316 Multiple Instances? Yes Description Voltage, example units = V IPSO Object: Current 3.2 Description: This IPSO object should be used with an ammeter to report measured electric current in amperes. It also provides resources for minimum and maximum measured values, as well as the minimum and maximum range that can be measured by the sensor. An example measurement unit is volts (ucum: A). Object Info: Object Object ID Object URN Current 3317 urn:oma:lwm2m:ext:3317 Multiple Instances? Yes Description Current, example units = A ©2015 IPSO Alliance 6

IPSO Object: Frequency 3.3 Description: This IPSO object should be used to report frequency measurements. It also provides resources for minimum and maximum measured values, as well as the minimum and maximum range that can be measured by the sensor. An example measurement unit is volts (ucum: Hz). Object Info: Object Object ID Object URN Frequency 3318 urn:oma:lwm2m:ext:3318 Multiple Instances? Yes Description Frequency, example units = hertz (Hz) IPSO Object: Depth 3.4 Description: This IPSO object should be used to report depth measurements. It can, for example, be used to describe a generic rain gauge that measures the accumulated rainfall in millimetres (mm) or in fathoms (fth). Object Info: Object Depth Object ID Object URN 3319 urn:oma:lwm2m:ext:3319 Multiple Instances? Yes Description Depth, example units = millimeters (mm) IPSO Object: Percentage 3.5 Description: This IPSO object should can be used to report measurements relative to a 0-100% scale. For example it could be used to measure the level of a liquid in a vessel or container in units of %. Object Info: Object Object ID Object URN Percentage 3320 urn:oma:lwm2m:ext:3320 Multiple Instances? Yes Description Percentage, example units = % ©2015 IPSO Alliance 7

IPSO Object: Altitude 3.6 Description: This IPSO object should be used with an altitude sensor to report altitude above sea level in meters. Note that Altitude can be calculated from the measured pressure given the local sea level pressure. It also provides resources for minimum and maximum measured values, as well as the minimum and maximum range that can be measured by the sensor. An example measurement unit is meters (ucum: m). Object Info: Object Object ID Object URN Altitude 3321 urn:oma:lwm2m:ext:3321 Multiple Instances? Yes Description Altitude, example units = meters (m) IPSO Object: Load 3.7 Description: Description: This IPSO object should be used with a load sensor (as in a scale) to report the applied weight or force. It also provides resources for minimum and maximum measured values, as well as the minimum and maximum range that can be measured by the sensor. An example measurement unit is kilograms (ucum: Kg). Object Info: Object Load Object ID Object URN 3322 urn:oma:lwm2m:ext:3322 Multiple Instances? Yes Description Load, example units = kilograms (KG) IPSO Object: Pressure 3.8 Description: This IPSO object should be used to report pressure measurements. It also provides resources for minimum and maximum measured values, as well as the minimum and maximum range that can be measured by the sensor. An example measurement unit is pascals (ucum: Pa). Object Info: ©2015 IPSO Alliance 8

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