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After the setup is successful, the mobile phone will receive a piece of
‘&751&succeful setting&&’. Then, each time when the ward leaves this
area, the terminal will send the alarming information of being out of the
fence to the center number.
(2) Fence Reading Function
Send commands to the terminal: # command number (752) # user
password 4 digits ##; after the command is set successfully, the terminal
will read the data of the module fence working status and return message
to the sending mobile phone, or PASSWORD ER if the password is
wrong.
Example: #752#0000##
Return:#open:1#lat:11456.209400#lng:2233.470100#distance:500#time:5
#status:2
Where, open: 1 indicates fence open; Open: 0 indicates fence
closed;
lat:11456.209400, latitude;
lng: 2233.470100; longitude;
distance: 500; fence radius;
time: 5 sampling interval;
status: 2, terminal has obtained valid satellite data, fence works normally;
