18
space+code" to tracker, it will forward the code to carrier’s phone
number and return the balance message received from carrier’s phone
number.
Take china mobile for example, china mobile is one of carrier in china,
mobile users can send “ye” to china mobile number 10086, and 10086 will
send user’s balance back, following is an illustration how this function
works.
6.19. Alarms
6.19.1 Low battery alarm
6.19.1.1 Send SMS “lowpspace+on”, it will send SMS “low
latitude/longitude” to authorized numbers 2 times in total
in 15 minutes
interval
when voltage of battery is going to be about 3.55V.
6.19.1.2 This function activates as default, send SMS
“lowpspace+off” to deactivate.
6.19.2 Power off alarm
6.19.2.1 Send “ epspace+on” to activate, it will send SMS “power
alarm+latitude/longtitude” to authorized numbers every 3 minutes when external power is cut
off.
6.19.2.2
This function activates as default.
Cancel: Send SMS “ epspace+off” to deactivate it.
Send balance back
Mobile
balance123456 10086 ye
Tracker
Received and execute
Send ye out to 10086
10086(China mobile)
Received ye from number in
the tracker and process
Received Balance message
Forward balance message to mobile
phone
