SIM868 Series_GNSS_Application Note

SIM868 Series_GNSS _Application Note GPRS Module SIMCom Wireless Solutions Limited Building B, SIM Technology Building, No.633, Jinzhong Road Changning District, Shanghai P.R. China Tel: 86-21-31575100 support@simcom.com www.simcom.com

SIM868 Series_GNSS_Application Note_V1.02 SIM868 Series_GNSS_Application Note 1.02 2020-06-22 Released Document Title: Version: Date: Status: GENERAL NOTES SIMCOM OFFERS THIS INFORMATION AS A SERVICE TO ITS CUSTOMERS, TO SUPPORT APPLICATION AND ENGINEERING EFFORTS THAT USE THE PRODUCTS DESIGNED BY SIMCOM. THE INFORMATION PROVIDED IS BASED UPON REQUIREMENTS SPECIFICALLY PROVIDED TO SIMCOM BY THE CUSTOMERS. SIMCOM HAS NOT UNDERTAKEN ANY INDEPENDENT SEARCH FOR ADDITIONAL RELEVANT INFORMATION, INCLUDING ANY INFORMATION THAT MAY BE IN THE CUSTOMER’S POSSESSION. FURTHERMORE, SYSTEM VALIDATION OF THIS PRODUCT DESIGNED BY SIMCOM WITHIN A LARGER ELECTRONIC SYSTEM REMAINS THE RESPONSIBILITY OF THE CUSTOMER OR THE CUSTOMER’S SYSTEM INTEGRATOR. ALL SPECIFICATIONS SUPPLIED HEREIN ARE SUBJECT TO CHANGE. COPYRIGHT THIS DOCUMENT CONTAINS PROPRIETARY TECHNICAL INFORMATION WHICH IS THE PROPERTY OF SIMCOM WIRELESS SOLUTIONS LIMITED COPYING, TO OTHERS AND USING THIS DOCUMENT, ARE FORBIDDEN WITHOUT EXPRESS AUTHORITY BY SIMCOM. OFFENDERS ARE LIABLE TO THE PAYMENT OF INDEMNIFICATIONS. ALL RIGHTS RESERVED BY SIMCOM IN THE PROPRIETARY TECHNICAL INFORMATION ，INCLUDING BUT NOT LIMITED TO REGISTRATION GRANTING OF A PATENT , A UTILITY MODEL OR DESIGN. ALL SPECIFICATION SUPPLIED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE AT ANY TIME. SIMCom Wireless Solutions Limited Building B, SIM Technology Building, No.633 Jinzhong Road, Changning District, Shanghai P.R.China Tel: +86 21 31575100 Email: simcom@simcom.com For more information, please visit: https://www.simcom.com/download/list-863-en.html For technical support, or to report documentation errors, please visit: https://www.simcom.com/ask/ or email to: support@simcom.com Copyright © 2020 SIMCom Wireless Solutions Limited All Rights Reserved. www.simcom.com 2 / 21

SIM868 Series_GNSS_Application Note_V1.02 About Document Version History Version Date V1.00 V1.01 V1.02 2017-01-03 2019-07-25 2020-06-15 Scope Owner Xiping.li Zhao.wang Fumei.zeng What is new New version Add AT+CGNSINFIX Change the style This document presents the AT command of GNSS function and application examples. The document can apply to SIM868 module witch hardware release version is V2.01 and above and the software release version is 1418B03SIM868M32 and later. www.simcom.com 3 / 21

SIM868 Series_GNSS_Application Note_V1.02 Contents About Document .................................................................................................................... 3 Version History ...................................................................................................................................... 3 Scope .................................................................................................................................................... 3 Contents ................................................................................................................................. 4 Introduction ..................................................................................................................... 6 1 1.1 Purpose of the document ............................................................................................................ 6 1.2 Related documents ..................................................................................................................... 6 1.3 Conventions and abbreviations ................................................................................................... 6 2 AT Command ................................................................................................................... 8 2.1 AT+CGNSPWR GNSS power control ....................................................................................... 8 2.2 AT+CGNSSEQ Define the last NMEA sentence that parsed .................................................. 9 2.3 AT+CGNSINF GNSS navigation information parsed from NMEA sentences ......................... 11 2.4 AT+CGNSINFIX Fix parameters of GNSS navigation information statement ......................... 12 2.5 AT+CGNSURC GNSS navigation, GEO-fences and speed alarm URC report .................... 13 2.6 AT+CGNSCMD Send command to GNSS ............................................................................. 14 2.7 AT+CGNSTST Send NMEA data to AT UART ........................................................................ 15 2.8 AT+CGNSDEL Check EPO file property ................................................................................ 15 2.9 AT+CGNSDEL Delete EPO file .............................................................................................. 16 2.10 AT+CGNSIPR Configure UART2 baud rate ........................................................................... 17 2.11 AT+CGNSAID Send EPO file to GNSS engine ...................................................................... 17 2.12 AT+CRFLOC Give reference location to GNSS engine .......................................................... 18 2.13 AT+CGNSVER Query GNSS version ..................................................................................... 19 2.14 AT+CGNSSAV Save http data to EPO file .............................................................................. 19 3 CME Error Code ............................................................................................................ 20 4 AT Commands Examples ............................................................................................. 21 www.simcom.com 4 / 21

SIM868 Series_GNSS_Application Note_V1.02 Tables and Figures Figure 1-1 SIM868 System connection .............................................................................. 6 www.simcom.com 5 / 21

SIM868 Series_GNSS_Application Note_V1.02 1 Introduction 1.1 Purpose of the document SIM868 module combines GNSS technology for satellite navigation. Featuring an industry-standard interface and GNSS function, it allows variable assets to be tracked seamlessly at any location and anytime with signal coverage. GNSS application provides a method to interact with a GNSS module. Figure 1-1 SIM868 System connection 1) For hardware design, please refer to SIM868_Hardware_Design_V1.02 "All-in-one mode". 1.2 Related documents 1.3 Conventions and abbreviations Abbreviation APN Description Access Point Name www.simcom.com 6 / 21

SIM868 Series_GNSS_Application Note_V1.02 URC FTP GGA GLL GNSS GPS AGPS DGPS GPRS GSA GSV HPA VPA GEO-Fence HDOP HTTP NMEA PDOP PDP RMC VDOP VTG ZDA EPO Unsolicited Result Code File Transfer Protocol Global Positioning System Fixed Data Geographic Position - Latitude/Longitude Global Navigation Satellite System Global Positioning System Assisted GPS Differential Global Positioning System General Packet Radio Service GNSS DOP and Active Satellites GNSS Satellites in View Horizontal Position Accuracy Vertical Position Accuracy A geographic area Horizontal Dilution of Precision Hypertext Transfer Protocol National Marine Electronics Association Position Dilution of Precision Packet Data Protocol Recommended Minimum Specific GNSS Data Vertical Dilution of Precision Course Over Ground and Ground Speed Time & Date Extended Prediction Orbit www.simcom.com 7 / 21

SIM868 Series_GNSS_Application Note_V1.02 2 AT Command SIM868 module provides GNSS AT command sets as below. Command AT+CGNSPWR AT+CGNSSEQ AT+CGNSINF AT+CGNSINFIX AT+CGNSURC AT+CGNSCMD AT+CGNSTST AT+CGNSCHK AT+CGNSDEL AT+CGNSIPR AT+CGNSAID AT+CRFLOC AT+CGNSVER Description GNSS power control Define the last NMEA sentence that parsed GNSS navigation information parsed from NMEA sentences Fix parameters of GNSS navigation information statement GNSS navigation, GEO-fence and speed alarm URC report control Send command to GNSS Send NMEA data to AT UART Check EPO file property Delete EPO file Configure UART2 baud rate Send EPO file to GNSS engine Give reference location to GNSS engine Query GNSS version 2.1 AT+CGNSPWR GNSS power control AT+CGNSPWR GNSS power control Test Command AT+CGNSPWR=? Read Command AT+CGNSPWR? Write Command AT+CGNSPWR= Response +CGNSPWR: (list of supported s ) OK Response TA returns the current status of GNSS Power supply. +CGNSPWR: OK Response GNSS POWER CONTROL ON/OFF OK or www.simcom.com 8 / 21

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