Campbell PC208W Bedienungsanleitung PDF herunterladen (Seite 10)

Data Retrieval, Processing and Final Storage in the Lake Victoria Basin Database

Detailed Outline of Data Trajectory

The datalogger works under a specific Campbell Scientific operating system and is controlled by either the METSTAT

or HYDROSTN datalogger program, for meteorological and hydrometrical stations respectively. These programs are

specifically created by GCP/RAF/304/JPN for the sensor configuration and data requirements in the Lake Victoria

Monitoring Network. Once they work satisfactorily (as they have proved to do after extensive testing at the Project

Office), the two programs require no further user intervention.

As indicated in paragraph 2.2, data is transferred from datalogger to PC with help of the SM192 storage module.

This module uses a specific Campbell Scientific data format, which is extremely condensed in order to make optimal

use of its memory.

The next steps are performed in PC208W Datalogger Support Software. This concerns a package developed by

Computer at the office. It uses of a specific storage format which can not be read by normal PCs.

The role of the SC532 Interface is to convert this specific storage module format into a RS232 compatible one. The

latter is part of the communication standard for IBM compatible PCs.

Data processing, rearrangement and final storage in the LVBD is accomplished on PC.

2.3 Software

Figure 2 presents the various software packages and programs, as well as the concerned file formats, playing a

role in the data acquisition, processing and storage process..

Figure 2: Software components and file formats involved in data acquisition process.

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Campbell PC208W Bedienungsanleitung Seite 10