The purpose of this system is the collection of weather data, backup and transmission to the base located 5 km away. The system is portable and durable for outdoor use (rain, dust ...).


System Diagram


Hardware Technology

The system is composed of :

  • Suitcase containing :
    • industrial Pocket PC (windows CE)
    • two RS ports
    • network port (RJ45)
    • PCMCIA acquisition card for special signals,
    • battery to extend power life
  • two wifi access points or UHF transmitters
  • two antennas
  • PC computer located in the base

Software Technology

PC operating software : MS Windows XP
Pocket PC operating software : MS Windows CE
Measurement software : NI LabVIEW Pocket PC and NI LabVIEW on the PC

How does it work ?

The operator connects the suitcase to the weather station. He opens the suitcase, switches on the Pocket PC and selects, via its touch screen, to transmit data.
The weather station sent weather data to the pocket PC, on RS port and acquisition card. The Pocket PC computes data and sends these to the base via, depending of the hardware configuration, WIFI (RJ45 connected to WIFI access point) or UHF (RS port connected to UHF transmitter).
In the base, a computer receives computes and displays data on the screen.

Tags: labview

What is LabVIEW?

LabVIEW LabVIEW is a development environment specialized in industrial and scientific applications. Its uniqueness is that it relies on the G language, created by National Instruments, which is fully graphical. It can create complex software, while facilitating the programming and thus reduce development time. Through its library of functions for data acquisition, instrumentation, analysis of mathematical measures, but also through the rapid creation of GUIs and coding simplified, the engineer has more time to focus on specific functions of the instrumentation communication and measurement analysis.

LabVIEW is particularly suitable for developing control, supervision, test and measurement systems.

What is LabWindows/CVI?

LabWindows/CVI LabWindows is a development environment in C language for the implementation of test systems, measurement and instrumentation. Thus, it is possible to enjoy both the power and precision of the C language but also libraries of functions for instrumentation and signal processing from National Instruments.

With LabWindows / CVI, you can develop:

  • software for Windows (exe) or UNIX Linux,
  • libraries (DLL, Active X,. NET),
  • instrument drivers,
  • on embedded targets,
  • on real-time target.

What is Measurement Studio

Measurement Studio pour Visual Studio C++, C# et Visual Basic These are libraries of graphical controls and functions for the rapid development of industrial or laboratory solutions containing .NET technology used directly in Visual Studio, to have power tools National Instruments software and instrumentation functions for C++ , C# or Visual Basic.

What is TestStand

TestStandTestStand is a instruction sequences engine and a development environment for creating a test sequencer evolved several common test for different products. We have a generic software that loads, as the test product, sequences specifying actions, tests and tolerances, and components (such as DLLs) for communication with the hardware.