Antenna Optimization; Perl Clients & Shell Scripts - OVMS User Manual

OVMS: Renault Twizy User Guide
V3.6: max drive/recup power levels (BMS limits) in W
•
V3.6: auto power adjustment levels (drive/recup) as a factor 0..1
•
V3.6: battery current min/max in A measured on the GPS section
•
Example:
RT-GPS-Log,2013-01-01 19:03:40,27461,51.257704,7.160899,139,242,48,1,119,20,...

Antenna optimization

The GPS log entries include the current vehicle speed, a GPS stale counter (counting down from
120 to 0, the lower it is the staler the coordinates) and the GSM signal quality (value range 0..31,
the higher the better).
Analyzing these values + connection drops, you can use the GPS log to optimize your antenna
positioning:
– Define a fixed route for a test drive.
– Take the tour, retrieve the GPS log.
– Change the antenna position.
– Take another tour, retrieve the new GPS log.
– Compare GPS and GSM signal qualities along the track, keep the antenna position that
delivers better values.
Perl clients & shell scripts
The perl clients are simple text clients for the OVMS server. They communicate with the server just
the same way an App does, but are not limited by a graphical user interface. Think of it as an
OVMS shell.
To use a perl client, you need a working perl installation and some additional perl packages (all
available by CPAN). Follow the instructions in the "HOWTO-Server" document.
All client scripts are located in the "client" directory.
bit 4 = 0x10: 1 = Car awake (key turned)
bit 5 = 0x20: 1 = Charging
bit 6 = 0x40: 1 = Switch-ON/-OFF phase / 0 = normal operation
bit 7 = 0x80: 1 = CAN-Bus online (test flag to detect offline)
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2019/05/02 RT3.9.1