MEITRACK T622 GPRS Protocol
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whether the data identifier in the reply command is the same as that of the
sending commanding. If yes, cache data in the tracker will be deleted and then
continue to upload the remanings.
Applicable Model
T622
Example
GPRS Reply
When scheduled event 35 is generated, the tracker will sent the following information to
the server:
$$U86,369800013320014,CCC,020134000100000023418757019B5FCC06EA3E3C1A010
A1F000000000900370099C1080005AB0E00CC0100009227890E02001300A8010000000
00000*A4\r\n
3.46
Obtaining a Picture – D00
GPRS Sending
D00,
File name
,
Picture data packet start number
GPRS Reply
D00,
File name,Number of picture data packets
,
Current picture data packet
number
,
Picture data
Description
Before obtaining a picture from the tracker, use the D01 command to obtain the picture
list.
File name: Got from the tracker memory card. The file name is unique.
Picture data packet start number: indicates the start sequence number of a picture
package. The minimum value is
0
, indicating that you read the picture from the first
picture package. A picture can be divided into multiple packages.
Number of picture data packages: indicates the number of packets of a picture. The
minimum number is
1
.
Current picture data packet number: which picture packet is sent.
Picture data: hexadecimal. After all picture data is obtained, a picture will be composed
automatically.
Note: When the tracker receives the D00 command, eight picture packets will be
uploaded consecutively. After 2 seconds, the server sends the D00 command to obtain
picture data packets from the ninth picture data packet.
Applicable Model
T622
Example
GPRS Sending
@@O48,353358017784062,D00,0215080432_C2E03.jpg,0*DB\r\n
GPRS Reply
The example cannot be displayed because of hexadecimal characters.
3.47
Obtaining the Picture List – D01
GPRS Sending
D01,
Picture data packet start number
GPRS Reply
D01,
Number of picture data packets
,
Current picture data packet number
,
Picture name
(1)
|
Picture name (2)
|…|
Picture name (n)
|
Description
Picture name (n): indicates picture names, which are separated by |.
Picture data packet start number: indicates the start sequence number of a picture list.
The minimum number is
0
. For example, when the value is
0
, you can obtain the picture