times (Ringing for 1-3 times then hang off, the corresponding specific number LED will not
light and not ring), device will automatically activate GPS, If rings more than 3 times, it will
not activate GPS, which will enter dialing proceed directly, indicate guardian want to
normally talk to their wards.
GPS searching time can be last for 5 min in maximum after booting device. If succeed to
activate GPS, device will send accurate location SMS to specific number, which just called,
e.g.: “Location (LBS): Bao’an Road, Bao’an District, Shenzhen, Guangdong
(N22.57139,E113.87710)”. Then the GPS will be off again.
If it is overtime and not able to be located in 5 minutes, the device will not send GPS
accurate address information and will turn off the GPS automatically.
When GPS is off, device will send LBS information to the server, if still needs to use GPS,
call the device via specific number again.
7.2 Checking location via SMS command
Only the 4 specific numbers have authority to check the location of device via
SMS command. The rest of mobiles will receive a error SMS from device if
they are trying to send checking command, for instance: ERROR:110.
7.2.1 Position check
Specific numbers send SMS command to device:
Position
Apply device to reply its position SMS of location. If command is sent
successfully, the specific numbers will receive LBS position SMS.
If GPS functions of device active within 5mins, device will send an extra
accurate position SMS. If not, device will not send extra SMS as well.
Replying examples of LBS Chinese position SMS:
“Current Location (LBS): nearby Bao’an Road Bao’an District, Shenzhen,
Guangdong (22.571,113.876)
”
Replying examples of GPS Chinese position SMS:
“Accurate location (GPS): Bao’an Road, Bao’an District, Shenzhen,
Guangdong (N22.57139,E113.87710)
”
7.2.2 GPS longitude and latitude location check
Specific numbers send SMS command to device:
WHERE#
apply for longitude and
latitude
Replying examples of longitude and latitude SMS:
Lat:N22.571285,Lon:E113.877115,Course:42.20,Speed:0.0740,DateTime:10-11-23
22:28:51
7.2.3 GPS location web link check
Specific numbers send SMS command to device:
URL# apply for google link
Replying examples of google link SMS:
<DateTime:10-11-23 23:42:51>
http://maps.google.com/maps?q=N22.571490,E113.877103
