Monday, July 15, 2024

Use location information with AWS IoT System Administration to watch and handle your IoT fleet

Use location information with AWS IoT System Administration to watch and handle your IoT fleet

Because the variety of Web of Issues (IoT) gadgets enhance exponentially, enterprises want superior instruments that may leverage location information to handle their IoT fleets throughout completely different geographies. Realizing your gadgets’ location is essential not just for asset administration and theft detection, but in addition to dispatch well timed remediation when your gadgets are non-operational. Furthermore by combining location and system state metadata, you’ll be able to derive richer insights about your IoT fleet, equivalent to detecting location-specific connectivity points or understanding utilization traits by location. For instance, should you function merchandising machines or commercial kiosks, you’ll be able to prioritize fleet enlargement, upgrades, or commercials based mostly on the geographic places related to larger consumer interplay.

With AWS IoT System Administration’s location indexing and geoquery function, you’ll be able to seek for gadgets based mostly on their final reported location. You can even leverage location data to boost your IoT fleet administration and monitoring actions. This location indexing and geoquery function permits you to listing gadgets which are situated inside a particular geographic space, carry out a proximity search relative to a reference location, implement focused over-the-air (OTA) updates, derive location-specific system efficiency insights, and determine gadgets which are not in a desired geographic boundary.

On this weblog, you’ll discover ways to get began with indexing location information and utilizing geoqueries to help your day-to-day IoT fleet administration operations.

Fleet Indexing and Geoquery Overview

AWS IoT System Administration is a completely managed cloud service that you should use to remotely monitor and handle your IoT gadgets at scale. It’s Fleet indexing functionality permits you to index, search, mixture, and group your gadgets based mostly on any mixture of connectivity and system state, metadata saved throughout the next IoT information sources: AWS IoT registry, AWS IoT System Shadow, AWS IoT connectivity, AWS IoT System Administration Software program Package deal Catalog, and AWS IoT System Defender violations. With location indexing and geoqueries, you’ll be able to slim your searches by location for particular insights and monitoring.

Reference architecture for ingesting, indexing and consuming the location information using AWS IoT Device Management

Determine 1: Reference structure for ingesting, indexing, and consuming location data utilizing AWS IoT System Administration.

Determine 1 depicts a reference structure to ingest, index, and devour location data utilizing AWS IoT providers. To make use of location information in searches, you need to retailer your system’s geolocation data (latitude and longitude) within the traditional shadow or named shadow and allow location indexing in AWS IoT Core Settings. Geolocation data might be saved in one in every of the 4 supported location information codecs (for extra data, see supported information codecs ). For gadgets that don’t have built-in world positioning system (GPS), you should use AWS IoT Core’s System Location function to resolve the placement of the system. Then you should use the AWS IoT Guidelines Engine to retailer the placement to the system into its traditional shadow or named shadow. As soon as the placement information is listed by IoT System Administration service, it may be utilized by a number of downstream functions equivalent to to watch the system fleet’s mixture state in Amazon CloudWatch, to question close by gadgets utilizing Amazon API Gateway or to research and generate location based mostly insights for the system fleet.

Geoqueries use fleet indexing’s present search and aggregation APIs with a further ‘geodistance’ enter parameter. This geodistance parameter specifies a search radius boundary from the required latitude and longitude coordinates. Geoqueries might be mixed with fleet metrics and Amazon CloudWatch to research traits over time and create alarms to watch the state of your fleet based mostly on pre-defined thresholds. Different examples embody, discovering the variety of e-bikes accessible at a given time in a high-demand location, monitoring the provision KPIs for the electrical car (EV) chargers, being alerted when a tool strikes from its put in location, reporting the cost terminal places to regulatory our bodies, producing location-sensitive insights about photo voltaic cell efficiency, diagnosing system malfunctions attributable to geo-influenced elements (equivalent to temperature and humidity).

Getting began with geoqueries

The next sections discover a few of the geoqueries capabilities. In these walk-throughs, you develop a system for an EV public charging infrastructure world supplier. This instance supplies EV chargers with completely different connecter sorts, energy rankings, and charging speeds. Utilizing geoqueries, you’ll be able to tackle the next enterprise necessities:

  1. Close to real-time means to find chargers in close by places.
  2. Monitor the variety of accessible chargers to make sure a particular service stage availability (SLA).
  3. Discover the distribution of EV charger kind (Degree 1, Degree 2, and Degree 3 – representing completely different charging speeds) that exceed a particular day by day transaction quantity.


Earlier than finishing the next steps, you need to have:

  1. An AWS account with entry and permission to carry out the actions on AWS IoT Core and AWS IoT System Administration.
  2. AWS Id and Entry administration (IAM) permissions to create and assign roles in AWS IoT Core.
  3. Entry to AWS CloudShell, and primary data of Linux and utilizing the AWS Command Line Interface (AWS CLI).


Preliminary setup and config

On this part you create a set of issues in AWS IoT Core to symbolize the EV chargers. The scripts and code use the us-east-1 Area. The script creates a factor and generates related meta-data associated to charger specification. It additionally generates a named shadow, chargerusage, that comprises information concerning the charger location and its utilization. It’s best to use CloudShell in us-east-1 to create the preliminary setup and run the geoqueries.

  1. Login to the AWS Administration Console and open CloudShell.
  2. Challenge the next to clone the git repository to obtain scripts.
$ git clone
  1. Run the script to create a fleet of EV chargers.
    For those who use the parameters as supplied within the instructions beneath, you’ll have 10 issues named as geoquery-test-<n> in AWS IoT Core. The script additionally generates some short-term recordsdata which are saved within the native listing and are utilized by subsequent scripts.
$ cd aws-iot-device-management-geoquery
$ bash geoquery-test 10

Be aware: Ignore following error should you see it within the output

An error occurred (ResourceAlreadyExistsException) when calling the CreatePolicy operation: Coverage can't be created - identify already exists (identify=blog_fi_geoquery_policy)

  1. Run script to replace the issues’ shadow paperwork.
$ bash

Configure Fleet Indexing

  1. Go to AWS Administration Console and seek for AWS IoT Core.
  2. In AWS IoT Core (us-east-1 Area), select Settings within the configuration pane.
  3. Go to the Fleet indexing part and select Handle indexing.
    1. Choose the checkboxes for Factor Indexing and Add factor connectivity.
    2. Choose the checkbox for Add named shadows. If you don’t see chargerusage listed below the Named shadow choice, choose Browse shadow names by factor.
    3. Select one of many issues that have been created within the earlier part.
    4. Choose chargerusage from the listing and choose Add shadow names.
  4. Navigate to Index location information and select Add new subject.
    1. Add shadow.identify.chargerusage.reported.config.location below Information path.
    2. Choose Lat, lengthy from the Sequence dropdown listing.
  5. Navigate to Customized fields for aggregation and choose Add new subject.
    1. Add attributes.kind below Area Identify and choose String from the Area Kind dropdown listing.
    2. Navigate to the underside of display and choose Replace.
  6. Verify the standing of index by operating following command.
$ aws iot describe-index --index-name "AWS_Things" --region us-east-1

Wait till indexStatus is ACTIVE.

Determine 2: AWS IoT Core settings to allow fleet indexing

Use case 1: Proximity search 

On this part, you utilize the SearchIndex API to exhibit how car homeowners can discover close by chargers appropriate to their EV. This instance’s assumption are as follows:

  • The car helps Degree 1 and Degree 2 electrical chargers.
  • The car is conscious of its present location’s latitude and longitude (37.723028, -122.375811) by way of onboard GPS modules.
  • The car proprietor desires to seek for an acceptable charger inside a 15 mile radius of the car’s present location.
  1. Goto CloudShell you utilized in earlier steps.
  2. Challenge the next command on the command immediate.
aws iot search-index 
--index-name "AWS_Things" 
--region us-east-1 
--query-string "( 
    attributes.kind:Level_1 OR 
    attributes.kind:Level_2) AND 
    shadow.identify.chargerusage.reported.utilization.isOnline:true AND 
  1. The JSON format output lists of all chargers assembly the question standards. Following is a truncated output for reference. The values in output might fluctuate.
sample output for search-index

Determine 3: Output of search-index question

Use Case 2: Location-specific fleet monitoring
On this step, you utilize the fleet indexing fleet metrics function to watch the variety of operational EV chargers within the geography of curiosity.

  1. Goto CloudShell you utilized in earlier steps.
  2. Challenge the next command on the command immediate to arrange a fleet metric. As soon as created, this fleet metric generates a knowledge level each 60 seconds, offering the depend of chargers which are inside a 50 mile radius of San Francisco, CA (37.723028,-122.375811) and are disconnected.
aws iot create-fleet-metric 
--metric-name "OfflineChargers" 
--region us-east-1 
--query-string " shadow.identify.chargerusage.reported.utilization.isOnline:false AND  
--aggregation-type "identify=Statistics,values=depend" 
--aggregation-field "registry.model" 
--period 60
  1. As soon as the fleet metric is setup, you’ll be able to view the OfflineChargers metric despatched to CloudWatch each minute.
  2. You can even setup CloudWatch alarms towards this metric. For the steps to create these alarms, see View fleet metrics in CloudWatch. When the alarm threshold that’s configured in CloudWatch is crossed, a number of notifications and ticketing-related actions are triggered to alert the upkeep groups. You possibly can create further fleet metrics utilizing completely different question standards utilizing the identical course of.

Use case 3 : Location-specific aggregated data/insights

On this part, you utilize the GetBucketsAggregation API to see the distribution of chargers based mostly on their kind (Level_1, Level_2 and Level_3) which are above a given day by day transaction threshold.

  1. Goto CloudShell you utilized in earlier steps.
  2. Challenge the next command on the command immediate. The question aggregates the chargers which are inside a 50 mile radius of San Francisco, CA (37.723028,-122.375811) and had greater than 25 transactions a day.
aws iot get-buckets-aggregation 
--index-name AWS_Things 
--region us-east-1 
--buckets-aggregation-type "termsAggregation={maxBuckets=5}" 
--query-string "shadow.identify.chargerusage.reported.utilization.dailySessions> 25 AND shadow.identify.chargerusage.reported.config.location:geo_distance,37.723028,-122.375811,50miles" 
--aggregation-field "attributes.kind"
  1. Your output must be much like Determine 4 beneath. This picture depicts what number of Level_1, Level_2, and Level_3 chargers meet the standards. The ‘depend’ might fluctuate in your deployment.
sample output for get Bucket Aggregation api call

Determine 4: Output of GetBucketAggregation question

Cleansing up

After you have accomplished these workouts, do the next to keep away from incurring further prices:

  1. If you do not want fleet indexing any longer, flip it off.
    1. In AWS IoT Core (us-east-1 Area), navigate to the left facet menu, choose Settings  
    2. Navigate to Fleet indexing part and choose Handle indexing
    3. Unselect checkboxes for Factor indexing
    4. Navigate to the underside of display and choose Replace
  1. Run the script to delete the AWS IoT issues that you simply created.
$ bash


On this submit, you discovered how one can use geolocation information with AWS IoT System Administration to go looking and monitor your system fleet. You discovered how one can configure the fleet indexing to index fleet system location information, use listed location information to derive insights, and use fleet metrics to watch your fleet and look at their traits. You possibly can prolong this instance to replace the charger shadow (location, utilization, and availability information) dynamically by modifying (present in aws-iot-device-management-geoquery listing of the cloned github venture), run location-based analytics on fleet information to determine location-based disconnection patterns, or goal OTA updates to gadgets in specified geographic boundaries. You possibly can additional discover AWS IoT Core System Location’s location decision functionality to resolve GNSS/Wi-Fi/Mobile metadata to geolocation, and subsequently index the geolocation information to make use of geoqueries. To be taught extra, see Indexing location information within the AWS IoT Developer Information, or login to the console to get began.

Writer bio

Reetesh Varshney Headshot

Reetesh Varshney

Reetesh is an IoT Specialist at Amazon Internet Providers. He works with clients throughout business verticals and helps their IoT-enabled enterprise alternatives and the expertise that drives their IoT options. He has helped clients to develop AWS IoT options for Sensible Linked Merchandise, Linked Autos, and Sensible Factories

Satej Sawant Headshot

Satej Sawant

Satej Sawant is a Software program Engineer at Amazon Internet Providers. He works on AWS IoT System Administration that helps clients remotely search, monitor, and handle their IoT gadgets at scale.

Surabhi Talwar Headshot

Surabhi Talwar

Surabhi Talwar is a Sr. Product Supervisor at Amazon Internet Providers. She focuses on AWS IoT System Administration that helps clients remotely search, monitor, and handle their IoT gadgets at scale. Previous to AWS, Surabhi labored in techniques engineering and product technique at Dish Community, Ericsson, and Meta, and within the telecommunications and media area.


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