G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 3/14 (2006.01) G01R 31/02 (2006.01) G01S 3/02 (2006.01) G01S 5/00 (2006.01) G01S 5/04 (2006.01) G01W 1/10 (2006.01)
Patent
CA 2074096
A lightning direction finder controller (LDFC) (201) for use at re- mote sites in a lightning Detection Network (101) provides information on lightning return strokes to a ne- twork controller (104). The LDFC (201) digitizes and processes return stroke data from an analogue direc- tion finder unit (222), time tags each return stroke with an absolute time accurate to the nearest 10-4 second of NIST time, and provides an inter face (210) for satellite and/or land line communication of lightning flash data to the network controller (104). The LDFC (201) includes a CPU board (206), a multi-function analogue and digital input/output board (216) that provides an inter- face to the analog direction finder unit (222), and an Interface Facility (210) that provides an interface for: satellite (202) and/or bisynchronous(200) communications, a local data storage device (120), diagnostic devices (114), and a satellite controlled clock (218). A watchdog timer (324) on the Interface Facility (210) resets the CPU (328) of the LDFC (201) when data communications cease, or the execution of the main program halts. The LDFC (201) supports a communications network overlay, using Reroute/Header messages, which allows the routing and passing of commands from any location in the network (101) to any other location, e.g. for remote diagnostic purposes. The LDFC (201) also supports virtual screen/keyboard capabilities, configurable parameter tables, various counts, status indica- tions and screens, and a time correction technique for an out-of-sync LDFC (201).
Blankenbaker Paul
Henderson Ronald W.
Cassan Maclean
The Research Foundation Of State University Of New York
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