Taking one step beyond its previous Bluetooth wireless strategy, CSR plc has just introduced its SiRFusion software development kit for Android platform developers who want to create indoor positioning using a wide spectrum of wireless communications protocols.
According to product marketing manager Dave Huntingford , SiRFusion combines real-time Wi-Fi signals, satellite positioning information, pedestrian dead reckoning, and the company’s cloud-based CSR Positioning Center to calculate accurate indoor location.
“Offering indoor positioning accurate enough to be useful has been a challenge that the industry has been trying to solve for many years,” he said, and with the kit developers can now leverage the SiRFusion library to rapidly integrate new location-based capabilities and services such as indoor location tagging and analytics for social networking applications, indoor navigation, lone worker efficiency and safety capabilities, as well as indoor asset tracking and targeted e-commerce services.
Because it does not depend on just one source of postioning information, he said, SiRFusion can provide the accurate indoor position fixes needed to make continuous indoor navigation a part of everyday life.
“The system automatically crowd-sources indoor Wi-Fi signatures as consumers walk through the location,” said Huntingford, ” and has also been architected to accommodate future proximity and location technologies such as Bluetooth Smart beacons, Wi-Fi Round Trip Time (RTT), and Indoor Messaging System (IMES).
The SDK, he said, makes use of the Fused Location Provider in Google's latest Android implementations which allows developers to interact with location information to track users as they walk through a location with an SIRFusion based app. From a cloud-based database will be generated navigation information that dynamically and continuously regenerates taking advantage of the fact that usually only three percent of access points are on the move. The cloud-based database sends the required potion of information pertaining to a particular location to the the user's device to calculate accurate indoor locations.
Huntingford said that instead of having an app talk to different location data sources, the Fused Location Provider makes possible a single programmable interface that feeds cellular, WiFi, GPS, and sensor data to developers’ applications. In tests, he said, SIRFusion provided a location accuracy of about 12 to 15 feet (3 meters) about 50 percent of the time, with a fully learned cloud-based CSR Positioning Center database.
SiRFusion for Android can be integrated into any app running on Android version 4.4 or later. The SDK will be available for download ww.csr.com in Q1 2015, and will include the SiRFusion library, API descriptions, and a Developer’s Guide.
CSR will demonstrate SiRFusion for Android at the Location and Context World conference from December 2-3, 2014 at the JW Marriott in San Francisco, and at Consumer Electronics Show (CES) in Las Vegas from January 6-9, 2015.