If you want to transmit every time the route has a specific angle, you can try this angle report command and that helps to draw the route better.
SMS Command :
*ANGLE#user password#Angle Threshold#Speed Threshold#Sensitivity##
For example: *ANGLE#0000#45#3#3##
Reply: SET GPS ANGLE OK.
ANG, Angle Threshold, Speed Threshold, Sensitivity
For example ANG,45,3,3
If the device checks that the angle in the positioning information is greater than the set angle threshold and the speed exceeds the set speed threshold and continues to exceed the set sensitivity the number of times, then the device will upload the current positioning information as compensation data to the platform.
Where the speed threshold is to filter the invalid angle compensation, when set to 0 means no filtering, as long as the angle threshold and sensitivity are exceeded the device will be data compensation.
Sensitivity is also for filtering invalid angle compensation, when set to 0, it means the highest sensitivity, and no filtering will be performed, as long as the angle threshold and speed threshold are exceeded once the device will perform data compensation.