GSatMicro Protocol

GSE Open GPS Protocol is an open standard for GPS, M2M, or SCADA device manufacturers to utilize for ease of implementation and flexibility by using a common standard. This standard is open to additional message types as suggested by the community of manufactures of telematics devices and sensor manufactures. The protocol is designed to include multiple blocks of data in a single transmission, and can be broken into multiple transmissions as seen fit based on message size limitations of satellite, GSM, UDP, or the protocol of your choosing. The device in the field is typically microcontroller based, and therefore, compiling messages sequentially in an integer based binary format is preferred.[1]

This protocol format is a collaboration of multiple vendors to utilize a common protocol or messaging structure for low bandwidth, messaging style applications, where there is often a custom protocol definition for every hardware vendor in the IoT market. As there is a common dataset transmitted by most telematics and tracking devices, this open format and collaboration between any hardware vendor looking to utilize a common standard, will speed the integration time of hardware and platforms.

Hardware vendors benefit from immediately available data in any telematics or IoT[2] platform that already supports this format.

Platform vendors benefit from easy integration and testing of new hardware or additional capabilities from hardware vendors.

There is large blocks of datasets left open for definitions and expansions as new technologies come to market. Continually adding additional dataset definitions to this protocol will expand as the group of vendors continue to innovate these markets. Feel free to reach out to any of the group of vendors contributing to this protocol for comments, questions, reviews, and or additions.

Intended future uses include LoRA[3], 4G, NB-IOT, BLE 4, BLE 4.1, BLE 5, ANT+, and RFID.

Open License

Copyright (c) 2017 Global Satellite Engineering, Inc. Permission is hereby granted, free of charge, to any person to deal in the message format without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the message format, to send and receive messages formatted according to the message format, and to permit persons to whom the message format is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies of documentation describing the message format. THE MESSAGE FORMAT IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MESSAGE FORMAT OR THE USE OR OTHER DEALINGS IN THE MESSAGE FORMAT.

Supported Products

GSatMicro

GSatMicro X

GSatMicro OEM

Iridium Products[4]

Iridium Next Products

Inmarsat Terminals[5]

External Links:

GSatMicro

Mobile Originated and Mobile Terminated Packet Definitions

All data blocks are big-endian (MSB) unless otherwise specified.

Mobile Originated Packet

Mobile Originated Block Data Definitions

Mobile Terminated Packet

Mobile terminated blocks always include a message or block size in the message to help simple parsers (micro controllers) to decode and process blocks with simple loop and integer indexing.

Mobile Terminated Block Data Definitions

Future Expansion

References

External links

[1] “Integrating Wireless Sensor Networks with the Web” , Walter, Colitti 2011

[2] Rouse, Margaret (2019). “internet of things IoT”. IOT Agenda.

[3] “LoRa Modulation Basics”

[4] “Iridium”. Encyclopedia Astronautica. Retrieved 13 September 2016

[5] “Inmarsat-About Us”. www.inmarsat.com.