GEOVIEWER Real-Time Monitoring Software

Описание оборудования

GeoViewer is a data viewer that provides flexible console viewing of large data sets from automatic data acquisition systems (ADAS). The program runs on Windows®, with full functionality under Windows Server®. GeoViewer operates on a LabVIEW™ platform, which has facilitated the evolution of the product, to support multiple loggers, on-web serving of data, numerous devices, web events, mobile access, etc. The robust, fast, feature-rich, ever-improving LabVIEW™ platform permits new functionality to be added readily.

Much GeoViewer data originates in data loggers which transmit their data by various logger-specific means to files which are locally or remotely accessible to the GeoViewer server. Because of this file model, any file with a public format which contains time-stamped data may be presented in GeoViewer: spreadsheets, databases, comma-separated text files, GPS data, public weather data, etc.

ALARM FUNCTIONS

Full-featured alarms are available for all channels, calculations from channels, communication status, etc. The alarms include high/low warn and alarm levels, hysteresis, event triggers, alarm levels computed from data, device outputs, privilege alarm mask. It is suggested that not every channel be alarmed and alarms be implemented incrementally to minimize nuisance alarms.

WEB FUNCTIONALITY & MOBILE FRIENDLY VIEWS

GeoViewer utilizes Internet communications in numerous ways. Data acquisition may use wired or wireless web communication as a link in a communications chain, local and wide area networks may be used to access data files outside the GeoViewer server, back-up may use offsite resources. 

End users may view data by remote computer or mobile device, and receive alarms by e-mail, text messages etc. Privileged users can maintain the system from offsite, typically by VPN (virtual private network) remote access. Because of the limited screen size of mobile devices, mobile-friendly views are typically required, with large buttons and reduced clutter.

CALIBRATION & COMPUTATION

With all data storage in raw format, calibration is typically performed on-the-fly using a calibration database. Numerous functions are available: linear, polynomial, transcendental, relational across the entire system (not just within a logger).

Deferred calibration is a powerful maintenance tool: if the calibration of a sensor is found to be incorrect, the appropriate calibration page is edited, and the entire record is automatically updated from the first reading. If a sensor is replaced, intermediate variables are created which point to the discontinuous record, each with an appropriate calibration, and a composite variable is created which switches from one intermediate variable to the other on the replacement date.