CJ790 3G GPS tracker unknown protocol

Tarique2 years ago

Hello Everyone,
I have a CJ790D 3G GPS tracker with SOS nutton, relay, and microphone. I want to know the protocol of my device, it is working on 10 digit ID instead of an IMEI. currently, it is compatible with “yuntrack” android app and works on the “gpscj.net” platform. Most commands are terminated by “#”.
“param1” command shows the IP address 113.98.254.178:7700
some other commands which are supported by this device are
tracker123456#
monitor123456#
rst
check123456#
555–>oil cut off
666–>resume oil
imei123456#
upload12456 time
sleep123456 off
admin123456 phone number

but

adminip123456 IP port this command is not responding, I have tried to change the IP and ports of other servers but it is neither changing the IP nor replying.

Model/company name is not mentioned on this tracker.
anyone from this forum can identify the protocol?

Best Regards

Tarique

shyy2 years ago

you need to set the port to 5013 for this device
the command is : adminip123456"ip_address:5013"

Tarique2 years ago

Thanks for the response, but the problem is solved,
problem was not with the port but "adminip123456 IP port" was not responding.
if the admin phone number is not registered then it responds and changes IP and port, but if the admin phone number is already registered then it will neither reply nor change the IP.
so whenever I have to change IP, first I have to use "noadmin" or I have to reset with "begin123456" then "adminip" is the usable command

I don't know what is the reason but now the device is ok

anyways
thanks

Richard Acosta2 years ago

the reason is... you need to read the manual, that's how the device works.

Rogerio Sobreraa year ago

Tarique , can you let me know which PORT you used to configure your tracker please?
I use this same device cj780.

waseema year ago

Dears
I have just installed a CJ750 in my OBD after inserting SIM card with GPRS, SMS and calling facilities. The tracker is responding via SMS but is showing offline on the APP gpscj, what went wrong while commissioning this device?
Can anybody help me here to complete the commissioning of the device.
Thanks
Waseem

inetsof5 months ago

Hi, I recently start to work with CJ790, but random report longitude whithout sign -, then traccar report arabian sea position, my question: there any way to tell traccar when longitude is positive then change sign?

+--------+----------+---------------------+--------------------+-------------------+
| id     | deviceid | servertime          | latitude           | longitude         |
+--------+----------+---------------------+--------------------+-------------------+
| 787035 |       20 | 2023-12-09 14:30:30 | 10.463326666666667 | 64.18059333333333 |
| 787040 |       20 | 2023-12-09 14:30:41 | 10.463326666666667 | 64.18059333333333 |
| 787041 |       20 | 2023-12-09 14:30:41 | 10.463326666666667 | 64.18059333333333 |
| 787047 |       20 | 2023-12-09 14:30:56 | 10.463326666666667 | 64.18059333333333 |
| 787049 |       20 | 2023-12-09 14:31:00 | 10.463326666666667 | 64.18059333333333 |
| 787056 |       20 | 2023-12-09 14:31:20 | 10.463326666666667 | 64.18059333333333 |
Anton Tananaev5 months ago

I think you can use computed attributes for that.

inetsof5 months ago

I did manually

UPDATE tc_positions SET longitude = -longitude WHERE longitude > 0 AND longitude < 70;

But the distances, odometers, fuel, is wrong, negative distances after delete distance

inetsof5 months ago

Hi Anton, I remember 8 years ago, when i try to add a new gps, you send me fixed server.jar

https://github.com/traccar/traccar/issues/730

It will be possible to do something with the server.jar so that it always places the longitude in negative, there are 3 GPS that are reporting the same failure and the provider does not want to replace the equipment.

Anton Tananaev5 months ago

I believe there's already a configuration option for it.