Using mobile devices on ATE systems

On large UUTs such as helicopters or jet aircraft, it is often difficult to perform required tests using a static test station located outside the UUT. For example, running a test sequence that requires a technician to follow a set of instructions, such as toggling breakers and switches in an aircraft cockpit, can be challenging and time-consuming. This situation may require the technician to move in and out of the cockpit after each test, or perhaps even require the use of two technicians - one reading off the instructions and the other performing the task. Integrating mobile devices into ATE systems allows the technician to freely move about the UUT, both inside and out, while running the TPS. The mobile device displays the instructions and receives the technician´s response while the main ATE console executes the test program and collects the data. Mobile applications for ATE are rapidly moving from a niche market to industry mainstream. However, mobile devices are so ubiquitous in today´s technology that targeting all device types from an ATE standpoint can be difficult and costly. Screen size, screen resolution, hardware characteristics, operating systems and even the operating system versions all need to be considered when targeting a mobile device. Tablets, with their 10 inch high-definition (HD) touch screens appear to be best suited for ATE mobile applications but almost any mobile device may be used. Arguably, there are four major tablet platforms available today, each with its own operating system: Apple iOS (iPad), Android, BlackBerry Tablet OS, and Microsoft. Any one of these is suitable for ATE mobile applications but each platform has advantages and disadvantages. This paper discusses the use of mobile devices to extend ATE test applications and what to consider when choosing to develop ATE applications that target mobile devices.