GLOBALSAT TR-203A - Manual (Page 68)

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7.4 Geo-fence
Geo-fence is for setting a rectangular area as permissible area or restricted
area. When TR-203 gets out the permissible area or goes in to the restricted
area, TR-203 will send its location to the preset mobile phone number via
SMS or to server via TCP, or UDP.
The behavior is as following:
Alert type of Geo-fence
1 2 3 4 5
Get in area
Get out of
area
Cross over
the boundary
Stay in area
Stay out of
area
7.4.1 Setup Geo-fence
Command’s format for set Geo-fence:
GS G ,IMEI,T,S,1=(type,upper_left_Lon,upper_left_Lat,right_botto
m_Lon,right_bottom_Lat[,gxxx][,StartTime,EndTime,weekday]),
2=(…),3=(…),…*Checksum!
Format Value Note
(right_bottom_Lon,right_bottom_Lat)
(upper_left_Lon,upper_left_Lat)