GMT100 @Track Air Interface Protocol GSM/GPRS/GPS Tracker GMT100 @Track Air Interface Protocol Application Notes: TRACGMT100AN001 Revision: 1.0 TRACGMT100AN001 –0– http://www.queclink.com sales@queclink.
GMT00 @Track Air Interface Protocol Document Title GMT100 @Track Air Interface Protocol Version 1.0 Date 2011-08-16 Status Draft Document Control ID TRACGMT100AN001 General Notes Queclink offers this information as a service to its customers, to support application and engineering efforts that use the products designed by Queclink. The information provided is based upon requirements specifically provided to Queclink by the customers.
GMT00 @Track Air Interface Protocol Contents Contents ............................................................................................................................................ 2 0. Revision history ............................................................................................................................ 4 1. Overview ....................................................................................................................................... 5 1.1.
GMT00 @Track Air Interface Protocol 3.5. Server Acknowledgement................................................................................................ 107 Appendix: Message Index .............................................................................................................
GMT100 @Track Air Interface Protocol 0. Revision history Revision Date Author Description of change V1.
GMT00 @Track Air Interface Protocol 1. Overview 1.1. Scope of This Document The @Track Air Interface Protocol is a digital communication interface based on printable ASCII characters over SMS or GPRS which is used for all communication between the backend server and the terminal. The backend server sends a command to the terminal and then the terminal confirms with an acknowledgement message. If necessary, the terminal also sends report messages to the backend server.
GMT00 @Track Air Interface Protocol 2. System Architecture k l n i a l i t c n e e u Q nfid o C The backend server can be accessed by many terminals and should have the following abilities: The backend server should be able to access the internet and listen to the connection originating from the terminal. The backend server should be able to support a TCP or UDP connection with the terminal. It should be able to receive data from the terminal and send data to the terminal.
GMT00 @Track Air Interface Protocol 3. Message Description 3.1. Message Format All of the @Track Air Interface Protocol messages are composed of printable ASCII characters. Each message has the following format: Message format Message type AT+GTXXX=,,…$ Command +ACK:GTXXX,,,…$ Acknowledgement k l n i a l i t c n e e u Q nfid o C +RESP:GTXXX,,,…$ Report The entire message string ends with character „$‟.
GMT00 @Track Air Interface Protocol Command Acknowledgement Terminal Backend Server Report Report Report k l n i a l i t c n e e u Q nfid o C Figure 1: @Tracker Protocol messages flow TRACGMT100AN001 –8–
GMT00 @Track Air Interface Protocol 3.2. Command And Acknowledgement 3.2.1. Bearer Setting Information The command AT+GTBSI is used to configure the GPRS parameters.
GMT00 @Track Air Interface Protocol Example: +ACK:GTBSI,080100,135790246811220,,0000,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z', '0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Default k l n i a l i t c n e e u Q nfid o C Tail Character 1 $ $ : The protocol version that the terminal conforms
GMT00 @Track Air Interface Protocol 3.2.2. Backend Server Register Information The command AT+GTSRI is used to configure where and how to report all the messages, including the server information and the communication method between the backend server and the terminal. When the terminal is configured correctly, it should be able to report data to the backend server. AT+GTSRI= Example: AT+GTSRI=gmt100,3,,1,116.226.44.17,7011,116.226.45.229,7012,+8613812341234,15,1,,,,, 0001$ AT+GTSRI=gmt100,3,,1,some.
GMT00 @Track Air Interface Protocol 0: Stop reporting. 1: TCP short-connection preferred mode. The connection is based on TCP protocol. The terminal connects to the backend server every time it needs to send data and will shut down the connection when the terminal finishes sending data. And if it fails to establish TCP connection to the backend server (both Main Server and Backup Server), it will try to send data via SMS to the SMS gateway. 2: TCP short-connection forced mode.
GMT00 @Track Air Interface Protocol when report mode is TCP long-connection mode or UDP mode. If set to 0, no heartbeat package message sending. : This defines whether the backend server should respond to the terminal with SACK message when receiving messages from the terminal. 0: the backend server does not reply SACK message after receiving message from the terminal. 1: the backend server replies SACK message when receiving any message from the terminal.
GMT00 @Track Air Interface Protocol 3.2.3. Quick Start Setting The command AT+GTQSS is used to configure the GPRS parameter and backend server information in one command if all these settings are within 160 bytes, otherwise use AT+GTBSI and AT+GTSRI in two steps. AT+GTQSS= Example: AT+GTQSS=gmt100,cmnet,,,3,,1,116.226.44.17,7011,116.226.45.
GMT00 @Track Air Interface Protocol Example: +ACK:GTQSS,080100,135790246811220,,0002,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z', '0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Default k l n i a l i t c n e e u Q nfid o C Tail Character TRACGMT100AN001 1 $ $ – 15 –
GMT00 @Track Air Interface Protocol 3.2.4. Global Configuration The AT+GTCFG command is used to configure the global parameters. AT+GTCFG= Example: AT+GTCFG=gmt100,123456,gmt100,,,,,,,,,,,,,,,,,,,0003$ AT+GTCFG=gmt100,,,1,123.
GMT00 @Track Air Interface Protocol : Set to change the current password. : An ASCII string to represent the name of the device. : Enable/disable the odograph function to calculate the total mileage. The current mileage is included in every position report message. : The initial value for calculating the total mileage. : Whether to close GPS chip after retrieving GPS position information.
GMT00 @Track Air Interface Protocol : Bitwise mask to configure which event report should be sent to the backend server.
GMT00 @Track Air Interface Protocol charging, the external power supply will power the unit, otherwise the internal backup battery will supply power for unit. 2: The external power supply will charge the internal backup battery when ignition on is detected or when the internal backup battery capacity is less than 30 percent if ignition is off. During charging, the external power supply will power the unit, otherwise the internal backup battery will supply power for unit.
GMT00 @Track Air Interface Protocol 3.2.5. Digital Output The AT+GTOUT command is used to output specified wave shape from the digital output ports. Total three wave shapes is supported as below. If set to wave shape 1, the device will maintain this wave shape at the specified output port after power reset.
GMT00 @Track Air Interface Protocol Toggle Times <=3 0 – 255 0 CUT Relay Status 1 0|1 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Serial Number 4 0000 – FFFF Tail Character 1 $ k l n i a l i t c n e e u Q nfid o C $ : Used only for the wave shape 1 as shown in Figure 2 to set the final status of the output port. 0: Disable status. 1: Enable status.
GMT00 @Track Air Interface Protocol Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ $ k l n i a l i t c n e e u Q nfid o C TRACGMT100AN001 – 22 –
GMT00 @Track Air Interface Protocol 3.2.6. Digital Input Port Setting The command AT+GTDIS is used to configure the parameters of 2 digital input ports. Input is dedicated for ignition detection. The digital input port 1 is customizable. If the logical status is changed on the digital input port 1, the device will report message +RESP:GTDIS to the backend server.
GMT00 @Track Air Interface Protocol The acknowledgment message of AT+GTDIS command: +ACK:GTDIS, Example: +ACK:GTDIS,080100,135790246811220,,0005,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ Default k l n i a l i t c n e e u Q nfid o C TRACGMT100A
GMT00 @Track Air Interface Protocol 3.2.7. Input/Output Port Binding This command is used to configure the user defined output-port action triggered by input ports. If the IO combination is set and the corresponding condition appears, the device will output specified wave shape on the specified output port. Otherwise, the device will restore the initial status of the specified output port.
GMT00 @Track Air Interface Protocol port to trigger the IOB event. Set to 1 to use enable status as the trigger condition and 0 to use disable status. Only when the logical status of all the input ports in one IO binding meets the trigger condition is the IOB event triggered. bit0: ignition detection bit1: digital input 1 : The period to check the status of all the digital input ports in one IO binding.
GMT00 @Track Air Interface Protocol 3.2.8. External Power Supply Monitoring The command AT+GTEPS is used to configure the parameters of external power supply monitoring. The device will measure and monitor the voltage of the external power supply. If the voltage of the external power supply matches the predefined alarm condition, the device will report an alarm message +RESP:GTEPS to the backend server to notify the status of the external power supply.
GMT00 @Track Air Interface Protocol range of (, ), the +RESP:GTEPS alarm will be triggered. : The lower limit to the voltage of the external power supply to trigger the alarm. : The upper limit to the voltage of the external power supply to trigger the alarm. : The sampling period to measure the external power supply.
GMT00 @Track Air Interface Protocol 3.2.9. Analog Input Port Setting The command AT+GTAIS is used to configure the parameters of analog input port.
GMT00 @Track Air Interface Protocol 2: Enable analog input alarm. If the current input voltage is outside the range of (, ), the alarm will be triggered. : The lower limit to the voltage of the analog input port to trigger the alarm. : The upper limit to the voltage of the analog input port to trigger the alarm. : The sampling period of the analog input port.
GMT00 @Track Air Interface Protocol 3.2.10. Fixed Report Information The command AT+GTFRI is used to configure the parameters of scheduled report (+RESP:GTFRI).
GMT00 @Track Air Interface Protocol : The working mode of the fixed report. 0: Disable this function. 1: Fixed Timing Report. The positional report message is sent to the backend server periodically according to the parameter . 2: Fixed Distance Report.
GMT00 @Track Air Interface Protocol the unit is second. If in AT+GTSRI is set to force on SMS, this should be greater than 15 seconds. : the specified distance to send the position information when is 2. Unit: meter. : the specified length to send the position information when is 3 and 4. Unit: meter. : The threshold to determine whether the device is turning around a corner. 0 to disable the corner report.
GMT00 @Track Air Interface Protocol 3.2.11. Geo-Fence Information The command AT+GTGEO is used to configure the parameters of Geo-Fence. (Geo-Fence is a virtual perimeter on a geographic area using a location-based service, so that when the geofencing terminal enters or exits the area a notification is generated. The notification can contain information about the location of the terminal and may be sent to the backend server.) AT+GTGEO= Example: AT+GTGEO=gmt100,0,3,121.412248,31.
GMT00 @Track Air Interface Protocol 2: Exiting the zone. The report will be generated only when the terminal exits from the Geo-Fence. 3: Both entering and exiting. : The longitude of a point which is defined as the center of the Geo-Fence circular region. The format is “(–)xxx.xxxxxx” and the value range is from “–180.000000” to “180.000000”. The unit is degree. West longitude is defined as negative starting with minus “–” and east longitude is defined as positive without “+”.
GMT00 @Track Air Interface Protocol 3.2.12. Tow Alarm Configuration The AT+GTTOW command is used to configure the motion sensor and the parameters for tow alarm.
GMT00 @Track Air Interface Protocol 0: Disable the tow alarm 1: Enable the tow alarm : A time parameter to judge whether the device is considered being towed after the engine off. If the motion sensor doesn‟t detect stillness within the specified time after engine off, the device is being towed. : After engine off and stillness detected, if the motion sensor detects moving again, the device turns into a state called fake tow.
GMT00 @Track Air Interface Protocol Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ $ k l n i a l i t c n e e u Q nfid o C TRACGMT100AN001 – 38 –
GMT00 @Track Air Interface Protocol 3.2.13. Speed Alarm This command is used to set a speed-alarm range for the terminal. According to the working mode, the terminal will report message +RESP:GTSPD to the backend server when its moving speed is outside or inside of the range.
GMT00 @Track Air Interface Protocol Tail Character 1 $ $ : The working mode of the speed alarm. 0: Disable speed alarm. 1: Report speed alarm if the current speed is within the speed range defined by and . 2: Report speed alarm if the current speed is outside the speed range defined by and . 3: Report speed alarm only one time if the current speed is within or outside the speed range defined by and .
GMT00 @Track Air Interface Protocol 3.2.14. SOS Function This command is used to configure the specified input port for emergency. When an emergency occurs, the end user can use this input port to trigger reporting current position as a google maps hyperlink to via SMS and report position message +RESP:GTSOS to the backend server. A specified wave shape can be configured to output on specified output port.
GMT00 @Track Air Interface Protocol The acknowledgment message of AT+GTSOS command: +ACK:GTSOS, Example: +ACK:GTSOS,080100,135790246811220,,000D,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{„A‟ – „Z‟,‟0‟ – „9‟} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Default k l n i a l i t c n e e u Q nfid o C Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ TRACGMT100A
GMT00 @Track Air Interface Protocol 3.2.15. Excessive Idling Detection The command AT+GTIDL is used to detect the engine excessive idling (stationary while ignition on). To use this command, the ignition signal must be connected to the device. When the device detects that the vehicle is entering into the idle status, it will report event message +RESP:GTIDN to the backend server. When the vehicle leaves the idle status, the device will report event message +RESP:GTIDF to the backend server.
GMT00 @Track Air Interface Protocol long, it is considered to be in idling status.
GMT00 @Track Air Interface Protocol 3.2.16. Harsh Behavior Monitoring The command AT+GTHBM is used to monitor the harsh behavior of drive with GPS. Two harsh behaviors are monitored, the harsh braking and the harsh acceleration. According the speed read from GPS, 3 levels of speed are defined including high speed, medium speed and low speed. For each speed level, 2 thresholds of speed change are defined to determine the harsh braking and harsh acceleration.
GMT00 @Track Air Interface Protocol 0 – 255 Toggle Times <=3 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Serial Number 4 0000 – FFFF Tail Character 1 $ 0 $ : Enable or disable this function. 0: Disable this function 1: Enable this function , : If the last known speed of the device read from GPS is greater or equal to , the vehicle that the device is attached to is considered to be high speed.
GMT00 @Track Air Interface Protocol The acknowledgment message of AT+GTHBM command: +ACK:GTHBM, Example: +ACK:GTHBM,080100,135790246811220,,000F,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Default k l n i a l i t c n e e u Q nfid o C Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ TRACGMT100A
GMT00 @Track Air Interface Protocol 3.2.17. Time Adjustment The command AT+GTTMA is used to adjust the local time of the device remotely. Upon this command, the device will set the time zone and daylight saving accordingly. Then it will use the given UTC time to adjust the local time based on the time zone and daylight saving setting. This command will also trigger the device to start GPS. After a successful GPS fix, the device will update the local time with the GPS UTC time again.
GMT00 @Track Air Interface Protocol +ACK:GTTMA,080100,135790246811220,,00010,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{„A‟ – „Z‟,‟0‟ – „9‟} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ Default $ k l n i a l i t c n e e u Q nfid o C TRACGMT100AN001 – 49 –
GMT00 @Track Air Interface Protocol 3.2.18. Outside Working Hours To protect the privacy of the driver when they are off duty, the device could be configured to report empty location information during the outside working hours. The command AT+GTOWH is used to define the working hours and the working mode to protect the privacy. When this function is enabled, the device will report empty latitude, empty longitude, empty LAC and empty Cell ID in all the report messages except for +RESP:GTSOS and +RESP:GTSOA.
GMT00 @Track Air Interface Protocol 1: Automatic mode. Under this mode, the device will ignore the status of the digital input. It will automatically check the current time against the working hours arrange. If outside the working hours, hide the location information. Otherwise report normally. : Specify the working days in a week in a bitwise manner.
GMT00 @Track Air Interface Protocol 3.2.19. Protocol Watchdog The AT+GTDOG command is used to reboot the device in a time based manner or upon ignition. This helps the device avoid working in an exceptional status for a long time. Besides these two automatically reboot method, the device also supports to use the digital input to trigger the reboot manually.
GMT00 @Track Air Interface Protocol means no report, 1 to report. If this is enabled, the device will make a real-time location before sending the message in order to send it with the current location information. : ID of the digital input port which is used to trigger the manually reboot. 0 means do not use manual reboot. Only port 1 is supported.
GMT00 @Track Air Interface Protocol 3.2.20. Auto-unlock PIN The command AT+GTPIN is used to configure the auto-unlock PIN function of the device. Some operators offer SIM card with PIN code protection by default. To make the device work with the PIN-protected SIM card, use this command to let the device auto-unlock the SIM PIN with the pre-set PIN code.
GMT00 @Track Air Interface Protocol Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ $ k l n i a l i t c n e e u Q nfid o C TRACGMT100AN001 – 55 –
GMT00 @Track Air Interface Protocol 3.2.21. Real Time Operation The command AT+GTRTO is used to retrieve information from the terminal or control the terminal to execute certain actions.
GMT00 @Track Air Interface Protocol The acknowledgment message of AT+GTRTO command: +ACK:GTRTO, Example: +ACK:GTRTO,080100,135790246811220,,IOS,0014,20090214093254,11F1$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Default k l n i a l i t c n e e u Q nfid o C Sub Command <=6 Sub command string Serial Number 4 0000 – FFFF Send Time 14 YYYYMMDDHHMMSS Count Number 4 000
GMT00 @Track Air Interface Protocol 3.2.22. Ignition Time Counter The command AT+GTHMC is used to measure time of use with each actuation of the ignition on. To use this command, the ignition signal must be connected to the device. When the device sends +RESP:GTFRI and +RESP:GTIGN and +RESP:GTIGF, will be sent in these reports.
GMT00 @Track Air Interface Protocol The acknowledgment message of AT+GTHMC command: +ACK:GTHMC, Example: +ACK:GTHMC,080100,135790246811220,,0015,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ Default k l n i a l i t c n e e u Q nfid o C TRACGMT100A
GMT00 @Track Air Interface Protocol 3.2.23. Jamming Detection The command AT+GTJDC is used to configure the parameter for jamming detection. When the detection condition is matched, the device will report +RESP:GTJDR event message to the backend server.
GMT00 @Track Air Interface Protocol Example: +ACK:GTJDC,080100,135790246811220,,0016,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z', '0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Serial Number 4 0000 – FFFF Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Default k l n i a l i t c n e e u Q nfid o C Tail Character TRACGMT100AN001 1 $ $ – 61 –
GMT00 @Track Air Interface Protocol 3.3. Report This section defines the formats of the report messages. Due to the max length of SMS message (160 bytes), it is recommended to carefully set the in AT+GTCFG to limit the length of the report which contains GPS position information if you choose SMS as the transmit method. Otherwise the report will be truncated to fit the length of SMS message. 3.3.1.
GMT00 @Track Air Interface Protocol +RESP:GTHBM, If harsh behavior is detected, this message will be sent to the backend server. All of the above report messages have the same format as shown below. Example: +RESP:GTTOW,080100,135790246811220,,,10,1,1,4.3,92,70.0,121.354335,31.222073,200902 14013254,0460,0000,18d8,6141,00,2000.0,20090214093254,11F0$ +RESP:GTDIS,080100,135790246811220,,,10,1,1,4.3,92,70.0,121.354335,31.222073,2009021 4013254,0460,0000,18d8,6141,00,2000.
GMT00 @Track Air Interface Protocol X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Report ID/Report Type 2 X(0-4)X(0-3) Number 1 0–1 GPS Accuracy <=2 0|1 – 50 Speed <=5 0.0 – 999.9 km /h Azimuth <=3 0 – 359 Altitude <=8 (–)xxxxx.x m Longitude <=11 (–)xxx.xxxxxx Latitude <=10 (–)xx.xxxxxx GPS UTC Time 14 YYYYMMDDHHMMSS MCC 4 0XXX MNC 4 0XXX LAC 4 XXXX Cell ID 4 XXXX Reserved 2 00 Mileage <=9 0.0 – 4294967.
GMT00 @Track Air Interface Protocol is high speed, 2 is medium speed and 1 is low speed. For the rest of the messages, it will always be 0. Report type has different meanings in different messages as below. In the +RESP:GTDIS report message generated by the digital input 0: The current logical status of the input port is disable status. 1: The current logical status of the input is enable status.
GMT00 @Track Air Interface Protocol +RESP:GTFRI, If fixed report is enabled, the device will send the message +RESP:GTFRI to the backend server according to the working mode. Example: +RESP:GTFRI,080100,135790246811220,,,10,1,1,4.3,92,70.0,121.354335,31.222073,2009021 4013254,0460,0000,18d8,6141,00,2000.0,12345:12:34,,80,,,,,,20090214093254,11F0$ +RESP:GTFRI,080100,135790246811220,,,10,2,1,4.3,92,70.0,121.354335,31.222073,2009021 4013254,0460,0000,18d8,6141,00,0,4.3,92,70.0,121.354335,31.
GMT00 @Track Air Interface Protocol Reserved Backup Battery Percentage <=3 0 – 100 Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ Reserved Reserved Reserved Reserved $ k l n i a l i t c n e e u Q nfid o C : The voltage of the external power supply.
GMT00 @Track Air Interface Protocol send the message +RESP:GTEPS to the backend server when the voltage of the external power supply enters the alarm range. +RESP:GTAIS, If the analog input alarm is enabled by the command AT+GTAIS, the device will send the message +RESP:GTAIS to the backend server when analog input voltage enters the alarm range. Example: +RESP:GTEPS,080100,135790246811220,,13500,00,1,1,4.3,92,70.0,121.354335,31.222073,20 090214013254,0460,0000,18d8,6141,00,2000.
GMT00 @Track Air Interface Protocol Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ $ < Analog Input VCC>: The value of the analog input voltage. When the voltage of the analog input meets the alarm condition as set by command AT+GTEPS or AT+GTAIS, the device will send the current analog input voltage with +RESP:GTEPS or +RESP:GTAIS message to the backend server. : The report ID and the type of the report type in hex format.
GMT00 @Track Air Interface Protocol Altitude <=8 (–)xxxxx.x m Longitude <=11 (–)xxx.xxxxxx Latitude <=10 (–)xx.xxxxxx GPS UTC Time 14 YYYYMMDDHHMMSS MCC 4 0XXX MNC 4 0XXX LAC 4 XXXX Cell ID 4 XXXX Reserved 2 00 Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ 00 k l n i a l i t c n e e u Q nfid o C $ : The phone number of the incoming call which triggers the report message.
GMT00 @Track Air Interface Protocol 3.3.2. Device Information Report If the device information report function is enabled by the command AT+GTCFG, the device will send the device information by the message +RESP:GTINF to the backend server periodically. +RESP:GTINF, Example: +RESP:GTINF,080100,135790246811220,,16,898600810906F8048812,16,0,1,11870,,4.
GMT00 @Track Air Interface Protocol Daylight Saving 1 0|1 Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ $ : The current motion state of the device. 16 (Tow): The device attached vehicle is ignition off and it is towed. 1A (Fake Tow): The device attached vehicle is ignition off and it might be towed. 11 (Ignition Off Rest): The device attached vehicle is ignition off and it is motionless.
GMT00 @Track Air Interface Protocol From the lowest bit to the highest bit, each bit represents the digital output 1 and CUT relay output respectively. For each bit, 0 means disable status, 1 means enable status.
GMT00 @Track Air Interface Protocol 3.3.3. Report of Real Time Querying 3.3.3.1. +RESP:GTGPS After the device receives the command AT+GTRTO to read the GPS information, it will send the GPS information to the backend server by the message +RESP:GTGPS.
GMT00 @Track Air Interface Protocol Example: +RESP:GTALL,080100,135790246811220,,BSI,cmnet,,,,,,,SRI,3,1,1,116.226.44.17,7011,116.2 26.45.229,7012,+8613812341234,15,1,,,,,CFG,gmt100,gmt100,1,123.4,0,0,0000,1,,02FF,,0,1,30 0,0,,0,0,,,TOW,1,10,0,120,1,0,5,10,200,10,4,,,,,,,,,EPS,2,250,11870,3,2,1,1,0,0,1,,,,DIS,0,1,,,1,1, 4,,2,1,,,,,,,TMZ,–0330,0,,,,,FRI,1,1,,1,1000,2300,180,30,1000,1000,,0,600,,,GEO,0,3,121.41224 8,31.
GMT00 @Track Air Interface Protocol SACK Enable 1 0|1 Reserved 0 Reserved 0 Reserved 0 Reserved 0 CFG 3 CFG Password 4 – 6 '0' – '9' 'a' – 'z' 'A' – 'Z' Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' ODO Enable 1 0|1 ODO Initial Mileage <=9 0.0 – 4294967.
GMT00 @Track Air Interface Protocol Tow Interval <=5 0 – 86400 sec Tow Output ID 1 0–2 Tow Output Status 1 0|1 Tow Output Duration <=3 0 – 255(×100ms) Tow Output Toggle Times <=3 0 – 255 Rest Duration <=3 1 – 255(×15sec) Motion Duration <=2 1 – 99(×100ms) Motion Threshold 1 2–9 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 EPS 3 EPS Mode 1 0–2 Min Threshold <=5 250 – 28000 mV Max Threshold <=5 250 – 28000 mV Sample
GMT00 @Track Air Interface Protocol DIS 3 DIS DIS Ignition Detection 1 0 0 Sample Period <=2 0|1 – 12(×2s) Reserved 0 Reserved 0 Input ID 1 1 1 Enable 1 0|1 Debounce Time <=2 0 – 20(×10ms) Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 TMZ 3 TMZ Time Zone 5 –|+HHMM Daylight Saving 1 0|1 Reserved 0 Reserved 0 Reserved 0 Reserved 0 FRI 3 FRI Mode 1 0–4 Discard No Fix 2 0|1 Reserved 0 Period Enable 1 0|1 Begin Time 4 HHMM
GMT00 @Track Air Interface Protocol Distance <=5 300 – 65535m Mileage <=5 300 – 65535m Reserved 0 Corner Report <=3 0 | 40 – 100 IGF Report Interval <=5 300-86400sec Reserved 0 Reserved 0 GEO 3 GEO GEO GEO ID0 1 0 0 Mode 1 0–3 Longitude <=11 (–)xxx.xxxxxx Latitude <=10 (–)xx.
GMT00 @Track Air Interface Protocol Duration <=3 0 – 255(×100ms) Toggle Times <=3 0 – 255 Reserved 0 Reserved 0 Reserved 0 Reserved 0 GEO ID2 1 2 Mode 1 0–3 Longitude <=11 (–)xxx.xxxxxx Latitude <=10 (–)xx.
GMT00 @Track Air Interface Protocol Reserved 0 Reserved 0 Reserved 0 Reserved 0 GEO ID4 1 4 Mode 1 0–3 Longitude <=11 (–)xxx.xxxxxx Latitude <=10 (–)xx.
GMT00 @Track Air Interface Protocol Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 Reserved 0 SOS 3 SOS Mode 1 0–2 Digital Input ID 1 0|1 SOS Number <=20 Output ID 1 0–2 Output Status 1 0|1 Duration <=3 0 – 255(×100ms) Toggle Times <=3 0 – 255 Reserved 0 Reserved 0 Reserved 0 Reserved 0 PIN 3 PIN Enable Auto-unlock PIN 1 0|1 PIN 1 '0' – '9' SIM PIN Lock 1 0|1 Reserved 0 Reserved 0 Reserved 0 Reserved
GMT00 @Track Air Interface Protocol Mode 1 0–1 Day of Work <=2 0 – 7F Working Hours Start1 4 HHMM Working Hours End1 4 HHMM Working Hours Start2 4 HHMM Working Hours End2 4 HHMM Reserved 0 Reserved 0 Reserved 0 Digital Output ID 1 0–2 Output Status 1 0|1 Duration <=3 0 – 255(×100ms) Toggle Times <=3 0 – 255 Reserved 0 Reserved 0 Reserved 0 Reserved 0 DOG 3 DOG Mode 1 0–2 Ignition Frequency <=3 10 – 120min Interval <=2 1 – 30 Time 4 HHMM Reserved 0
GMT00 @Track Air Interface Protocol Mode 1 0|1 Time to Stationary 1 1 – 5 min Time to Movement 1 1 – 5 min Reserved 0 Reserved 0 Reserved 0 Reserved 0 Output ID 1 0–2 Output Status 1 0|1 Duration <=3 0 – 255(×100ms) Toggle Times <=3 0 – 255 Reserved 0 Reserved 0 Reserved 0 Reserved 0 HMC 3 HMC 1 0|1 11 00000:00:00-99999:00:00 k l n i a l i t c n e e u Q nfid o C Ignition Enable Initial Count Time Ignition Counter Time Reserved 0 Reserved 0 Reserved 0 Re
GMT00 @Track Air Interface Protocol Reserved 0 High Speed <=3 100 – 400km/h ∆Vhb <=3 0 – 100km/h ∆Vha <=3 0 – 100km/h Reserved 0 Medium Speed <=3 100 – 400km/h ∆Vmb <=3 0 – 100km/h ∆Vma <=3 0 – 100km/h Reserved 0 Reserved 0 ∆Vlb <=3 0 – 100km/h ∆Vla <=3 0 – 100km/h Reserved 0 Output ID 1 0–2 Output Status 1 0|1 Duration <=3 0 – 255(×100ms) Toggle Times <=3 0 – 255 Reserved 0 Reserved 0 Reserved 0 Reserved 0 JDC 3 JDC JDC Mode 1 0|1 0 Signal Thres
GMT00 @Track Air Interface Protocol Output Status 1 0|1 Duration <=3 0 – 255(×100ms) Toggle Times <=3 0 – 255 Reserved 0 Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ $ 3.3.3.3. +RESP:GTCID k l n i a l i t c n e e u Q nfid o C After the device receives the command AT+GTRTO to read the ICCID of the SIM card, it will send the ICCID to the backend server by the message +RESP:GTCID.
GMT00 @Track Air Interface Protocol X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' CSQ RSSI <=2 0 – 31|99 CSQ BER <=2 0 – 7|99 Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ $ : The signal strength level. k l n i a l i t c n e e u Q nfid o C CSQ RSSI Signal Strength (dBm) 0 <-133 1 -111 2 – 30 -109 – -53 31 >-51 99 Unknown : The quality of the GSM signal.
GMT00 @Track Air Interface Protocol Count Number 4 0000 – FFFF Tail Character 1 $ $ : The type of the device. : The software version. The first two characters represent the major version and the last two characters represent the minor version. For example: 010A means the version 1.10. : The hardware version. The first two characters represent the major version and the last two characters represent the minor version.
GMT00 @Track Air Interface Protocol +RESP:GTIOS, Example: +RESP:GTIOS,080100,135790246811220,,,12000,,00,00,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Reserved 0 Analog Input VCC1 <=4 Reserved 0 Digital Input 2 00 – 03 Digital Output 2 00 – 03 Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ Default 0 – 32000
GMT00 @Track Air Interface Protocol Tail Character 1 $ $ k l n i a l i t c n e e u Q nfid o C TRACGMT100AN001 – 90 –
GMT00 @Track Air Interface Protocol 3.3.4. Event Report The following event reports are triggered when certain events occur. +RESP:GTPNA: Power on report +RESP:GTPFA: Power off report +RESP:GTMPN: The report for connecting main power supply +RESP:GTMPF: The report for disconnecting main power supply +RESP:GTBTC: Backup battery starts charging report +RESP:GTSTC: Backup battery stop charging report. +RESP:GTBPL: Backup battery low +RESP:GTBPN: Backup battery is connected.
GMT00 @Track Air Interface Protocol Count Number 4 0000 – FFFF Tail Character 1 $ $ +RESP:GTMPN, +RESP:GTMPF, +RESP:GTBTC, +RESP:GTBPN, +RESP:GTBPF, +RESP:GTSOA, +RESP:GTJDR, Example: +RESP:GTMPN,080100,135790246811220,,0,4.3,92,70.0,121.354335,31.222073,2009021401 3254,0460,0000,18d8,6141,00,20090214093254,11F0$ +RESP:GTMPF,080100,135790246811220,,0,4.3,92,70.0,121.354335,31.222073,20090214013 254,0460,0000,18d8,6141,00,20090214093254,11F0$ +RESP:GTBTC,080100,135790246811220,,0,4.
GMT00 @Track Air Interface Protocol MCC 4 0XXX MNC 4 0XXX LAC 4 XXXX Cell ID 4 XXXX Reserved 2 00 Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ 00 $ k l n i a l i t c n e e u Q nfid o C +RESP:GTSTC, Example: +RESP:GTSTC,080100,135790246811220,,,0,4.3,92,70.0,121.354335,31.
GMT00 @Track Air Interface Protocol Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ $ +RESP:GTBPL, Example: +RESP:GTBPL,080100,135790246811220,,3.53,0,4.3,92,70.0,121.354335,31.222073,2009021 4013254,0460,0000,18d8,6141,00,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Backup Battery VCC <=4 0.0 – 4.
GMT00 @Track Air Interface Protocol Example: +RESP:GTSTT,080100,135790246811220,,16,0,4.3,92,70.0,121.354335,31.222073,200902140 13254,0460,0000,18d8,6141,00,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' State 2 11|12|21|22|41|42|16 GPS Accuracy <=2 0 Speed <=5 0.0 – 999.9 km /h Azimuth <=3 0 – 359 Altitude <=8 (–)xxxxx.
GMT00 @Track Air Interface Protocol +RESP:GTANT, Example: +RESP:GTANT,080100,135790246811220,,0,0,4.3,92,70.0,121.354335,31.222073,2009021401 3254,0460,0000,18d8,6141,00,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Default k l n i a l i t c n e e u Q nfid o C External GPS Antenna 1 0|1|2|3 GPS Accuracy <=2 0 Speed <=5 0.0 – 999.
GMT00 @Track Air Interface Protocol Example: +RESP:GTIGN,080100,135790246811220,,1200,0,4.3,92,70.0,121.354335,31.222073,2009021 4013254,0460,0000,18d8,6141,00,2000.0,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Duration of Ignition Off <=6 0 – 999999 sec GPS Accuracy <=2 0 Speed <=5 0.0 – 999.9 km /h Azimuth <=3 0 – 359 Altitude <=8 (–)xxxxx.
GMT00 @Track Air Interface Protocol +RESP:GTIGF, Example: +RESP:GTIGF,080100,135790246811220,,1200,0,4.3,92,70.0,121.354335,31.222073,2009021 4013254,0460,0000,18d8,6141,00,2000.0,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Duration of Ignition On <=6 0 – 999999 sec GPS Accuracy <=2 0 Speed <=5 0.0 – 999.
GMT00 @Track Air Interface Protocol +RESP:GTIDN,080100,135790246811220,,,,0,4.3,92,70.0,121.354335,31.222073,2009021401 3254,0460,0000,18d8,6141,00,2000.0,20090214093254,11F0$ Parameter Length(byte) Range/Format Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Reserved 0 Reserved 0 GPS Accuracy <=2 0 Default 0, Last known k l n i a l i t c n e e u Q nfid o C Speed <=5 0.0 – 999.
GMT00 @Track Air Interface Protocol Protocol Version 6 XX0000 – XXFFFF, X∈{'A' – 'Z','0' – '9'} Unique ID 15 IMEI Device Name <=10 '0' – '9' 'a' – 'z' 'A' – 'Z' Motion State 2 11|12|16|22 Duration of Idling Status <=6 0 – 999999 sec GPS Accuracy <=2 0 Speed <=5 0.0 – 999.9 km /h Azimuth <=3 0 – 359 Altitude <=8 (–)xxxxx.x m 0, Last known k l n i a l i t c n e e u Q nfid o C Longitude <=11 (–)xxx.xxxxxx Latitude <=10 (–)xx.
GMT00 @Track Air Interface Protocol Unique ID 15 IMEI Fix Type 3 SOS|RTL|LBC|TOW|FRI|GI R MCC1 4 0XXX MNC1 4 0XXX LAC1 4 Cell ID1 4 RX Level1 2 Reserved 0 MCC2 4 0-63 0XXX k l n i a l i t c n e e u Q nfid o C MNC2 4 LAC2 4 Cell ID2 4 RX Level2 2 Reserved 0 MCC3 4 0XXX MNC3 4 0XXX LAC3 4 Cell ID3 4 RX Level3 2 Reserved 0 MCC4 4 0XXX MNC4 4 0XXX LAC4 4 Cell ID4 4 RX Level4 2 Reserved 0 MCC5 4 0XXX MNC5 4 0XXX LAC5 4 Cell ID5 4 TRACGMT100A
GMT00 @Track Air Interface Protocol RX Level5 2 0-63 Reserved 0 MCC6 4 0XXX MNC6 4 0XXX LAC6 4 Cell ID6 4 RX Level6 2 Reserved 0 MCC 4 0XXX MNC 4 0XXX LAC 4 Cell ID 4 RX Level 2 0-63 Reserved 2 00 Send Time 14 YYYYMMDDHHMMSS Count Number 4 0000 – FFFF Tail Character 1 $ 0-63 k l n i a l i t c n e e u Q nfid o C $ : A string to indicate what kind of GPS fixing this cell information is for.
GMT00 @Track Air Interface Protocol : Cell ID in hex format of the service cell. : The signal strength of the service cell. Note: 1. It probably includes only several neighbor cells‟ (even no neighbor cell) information. If some neighbor cell wasn‟t find, all the fields of the neighbor cell will be empty. 2. "ffff" in the field of , | means the terminal doesn‟t know the value. 3. This message cannot be sent via SMS. | |
GMT00 @Track Air Interface Protocol 3.3.5. Buffer Report If the buffer report function is enabled by command AT+GTSRI, the terminal will save the report messages in a local buffer when the following occurs. GSM network is not available Failed to activate GPRS context for the TCP or UDP connection. Failed to establish the TCP connection with the backend server. These messages will be sent to the backend server when connection to the server recovers again.
GMT00 @Track Air Interface Protocol 3.3.6. Report Google Maps hyperlink According to the setting of the command AT+GTSOS and the configuration of location by call, the device can send a SMS with Google Maps hyperlink to a mobile phone. If the was set to 2 in the command AT+GTSOS, the terminal will send a SMS with Google Maps hyperlink to the direct phone numbers. If is set to 2, the terminal will send its current position to the incoming call via SMS with Google Maps hyperlink.
GMT00 @Track Air Interface Protocol 3.4. Heartbeat Heartbeat is used to maintain the contact between the device and the backend server if communicating via GPRS. The heartbeat package is sent to the backend server at the interval defined by in AT+GTSRI command.
GMT00 @Track Air Interface Protocol 3.5. Server Acknowledgement If server acknowledgement is enabled by AT+GTSRI command, the backend server should reply to the device whenever it receives a message from the device.
GMT00 @Track Air Interface Protocol Appendix: Message Index Command and ACK AT+GTBSI +ACK:GTBSI AT+GTSRI +ACK:GTSRI AT+GTQSS +ACK:GTQSS AT+GTCFG +ACK:GTCFG AT+GTOUT +ACK:GTOUT AT+GTDIS +ACK:GTDIS AT+GTIOB +ACK:GTIOB AT+GTEPS +ACK:GTEPS AT+GTAIS +ACK:GTAIS AT+GTFRI +ACK:GTFRI AT+GTGEO +ACK:GTGEO AT+GTTOW +ACK:GTTOW AT+GTSPD +ACK:GTSPD AT+GTSOS +ACK:GTSOS AT+GTIDL +ACK:GTIDL AT+GTHBM +ACK:GTHBM AT+GTTMA +ACK:GTTMA AT+GTOWH +ACK:GTOWH AT+GTDOG +ACK:GTDOG AT+GTPIN +ACK:GTPIN k l n i a l i t c n e e u Q nfi
GMT00 @Track Air Interface Protocol AT+GTRTO +ACK:GTRTO AT+GTHMC +ACK:GTHMC AT+GTJDC +ACK:GTJDC Position Related Report +RESP:GTTOW +RESP:GTEPS +RESP:GTDIS +RESP:GTIOB +RESP:GTFRI +RESP:GTGEO +RESP:GTSPD +RESP:GTSOS +RESP:GTRTL +RESP:GTLBC +RESP:GTDOG +RESP:GTAIS +RESP:GTIGL +RESP:GTHBM k l n i a l i t c n e e u Q nfid o C Device Information Report +RESP:GTINF Report for Querying +RESP:GTGPS +RESP:GTALL +RESP:GTCID +RESP:GTCSQ +RESP:GTVER +RESP:GTBAT +RESP:GTIOS +RESP:GTTMZ Event Report +RES
GMT00 @Track Air Interface Protocol +RESP:GTSTC +RESP:GTBPL +RESP:GTBPN +RESP:GTBPF +RESP:GTSOA +RESP:GTSTT +RESP:GTANT +RESP:GTPDP +RESP:GTIGN +RESP:GTIGF +RESP:GTIDN +RESP:GTIDF +RESP:GTJDR k l n i a l i t c n e e u Q nfid o C Heartbeat +ACK:GTHBD +SACK:GTHBD Server Acknowledgement +SACK TRACGMT100AN001 – 110 –
