Application
uGraph is a Microsoft Windows based program designed for the non-realtime presentation of data obtained using CR1000 / CR800 datalogger in graphic as well as tabular formats. With proper configuration, uGraph has been successfully used for instrumentation projects including multi-stories buildings, tunnels, deep excavations, railways, subway systems, airports, dams, and hydroelectric schemes.
Features
- Utilises industrial standard Microsoft Access database engine.
- Display trend graph of each sensor or a group of sensors against time.
- Display profile plots to show how the sensors vary along a string of sensors.
- View sensor data over a plan or section with three level alarm threshold checking.
- View plots in raw data format or in engineering units.
- User definable plotting period and datum date.
- Mouse driven graphics based user interface.
- User definable window for zooming of graphs.
- User specified plotting style and scale.
- High quality printing and exporting of graphs.
- Data can be exported in comma delimited ASCII format for further processing using third party program such as Excel.
- Online and content sensitive help.
Data Acquisition
uGraph is primarily designed for use with data collected with Campbell Scientifics’ data loggers. Before the data can be processed by uGraph, the data can be collected in the field with a portable PC running PC208W or a Palm PDA running PConnect and be transferred on to the PC’s hard disk. Alternatively, data can be collected remotely and automatically via communication devices such as short-haul modem, telephone modem and radio modem, etc.
Data Processing
uGraph organizes data from data logger into project database. Raw data from up to 200 sensors per logger are processed and stored in a database that is compatible with Microsoft’s Access 97. Information including the sensor’s calibration factors and how to present the data are also contained in the database.
Graphical Data Presentation
uGraph comes with facilities to graph and to replay historical data for reporting and post analysis. The data can be displayed in trend graphs, in profile plots, or in plan view or section view similar to the real-time display.
Trend Graphs
Data readings from a group of sensors against time 
Graph data can be exported to Microsoft Excel for additional processing
Profile Plots
The graph on the right presents the profile plot of a string lof linked EL beam sensors
Plan or Section View
The readings of the sensors are displayed over images of site in plan view, section view, or actual photograph as the example on the right.
Alarm Checking
Up to three alarm thresholds can be assigned to each sensor. While running in plan or section view, uGraph will test readings from each sensor against the alarm limits and display the readings in green, blue, amber, and red accordingly. The figure below showed sensor readings are displayed in appropriate locations, color-coded for alarm status, and with instant access to trend plots for past three days.
