Abstract: A data collection and analysis device that downloads and updates firmware from operation platforms and an operating method of the same are revealed. The device includes a core unit, a program conducting and loading unit connected to the core unit, a translation unit connected to the core unit and the program conducting and loading unit, and a communication interface connected to the program conducting and loading unit, and the translation unit. The core unit is connected to a transmission unit, a memory unit, an indicator light unit, and an input unit. Thus users don't need to buy different data collection and analysis devices and the equipment cost is dramatically reduced. Moreover, the device and various test equipment are registered and synchronized by various ways so that the testing and analysis process is more convenient. The security of firmware installed is ensured. Firmware debugging and confirmation time after debugging are reduced.

Abstract: A telescopic test bar structure comprises a circuit unit and a winding device within a main body, and a telescopic test bar connected externally to the main body. The winding device has a shaft, which has a slit provided at the center thereof, protruding from a housing. A reel disk is received within the housing. A receiving groove for winding a sensing wire is formed on the reel disk and an accommodation space for receiving an elastic element is formed on the reel disk. The inner end of the sensing wire is electrically connected with the circuit unit. A sensor element on the outer end of the sensing wire is connected to the telescopic test bar. This structure has the advantage of better operational convenience in extension and shortening of the test bar without wiring entanglement.