Purple Robot is a core component of CBITs mobile offerings.

This site is under active construction, so please be patient as we bring all of our content online. If you have specific content that you’d like to see prioritized, e-mail Chris Karr to discuss what you need online.

The app provides the following major features for constructing context-aware interventions and experiences:

  • A full real-time sensor data acquisition platform for collecting information about the user and their immediate surroundings. Purple Robot provides
    • Full access to the Android sensor framework, including the accelerometer, gyroscope, pressure sensor, and more.
    • Access to other device information such as battery level, running software & apps, and hardware information.
    • Options to scan for external devices such as wireless access points and visible Bluetooth devices.
    • Location sensors that use the built-in GPS and cellular triangulation options to map the user’s location.
    • Local environmental data sources such as solar event timing (sunrise & sunset) and weather conditions.
    • Statistical summaries of the user’s communication patterns, including phone logs and text-message transcripts.
    • Cryptographic anonymization of personally-identifiable information before it leaves the device.
  • Robust Javascript & Scheme scripting engines
    • An embedded web server that exposes the scripting engine to put web-based applications on an equal footing with native applications.
    • A complete programming framework that allows other applications (native & web-based) to store data, launch applications, update homescreen widgets, and create customized native prompts and dialogs.
    • The ability to define new sensors & features using standard Javascript.
    • Networked configuration options built around the scripting engine that allow for remote configuration (with proper authorization).
  • A robust store-and-forward architecture for transmitting sensor data and user-provided information to custom data warehouses.
  • A full trigger framework for defining conditions when scripted actions should occur.
    • Date & triggers fire at preselected intervals specified by the standard iCalendar format.
    • Sensor-based triggers fire when a condition matching a predefined pattern occurs.
    • Triggers have access to the full scripting runtime, providing rich interactions.

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