Changes for page General Manual for -CB , -CS models
Last modified by Mengting Qiu on 2025/03/08 11:35
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... ... @@ -900,8 +900,6 @@ 900 900 901 901 [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]] 902 902 903 - 904 - 905 905 906 906 == 6.4 What if the signal is good but the domain name resolution fails? == 907 907 ... ... @@ -927,9 +927,67 @@ 927 927 [[image:image-20240827150121-5.png||height="476" width="680"]][[image:image-20240827145055-4.png||height="484" width="678"]] 928 928 929 929 928 +== 6.5 GPS debugging == 930 930 931 931 931 +The following are three related AT commands that introduce GPS functions. 932 932 933 +* **Turn on/off GPS** 933 933 935 +(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GPS ** 934 934 937 +**Ex1: **AT+GPS=0 ~/~/ Turn off GPS 938 + 939 +**Ex2: **AT+GPS=1 ~/~/ Turn on GPS 940 + 941 +(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x11(%%)** 942 + 943 +Format: Command Code (0x11) followed by 1 byte. 944 + 945 +Example: Downlink Payload: **11 01 **~/~/ AT+GPS=1 946 + 947 + 948 +* **Set GNSS open time** 949 + 950 +Extend the time to turn on GNSS. The automatic GPS location time is extended when the node is activated. 951 + 952 +(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GNSST** 953 + 954 +Example: AT+GNSST=30 ~/~/ Set the GPS positioning time to 30 seconds 955 + 956 +(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x10(%%)** 957 + 958 +Format: Command Code (0x10) followed by 2 bytes. 959 + 960 +Example: Downlink Payload: **10 00 1E **~/~/ AT+GNSST=30 961 + 962 + 963 +* **Set GPS positioning interval** 964 + 965 +Feature: Set GPS positioning interval (unit: hour). 966 + 967 +When GPS is enabled, the node automatically locates and uplinks each time it passes **GTDC time** after activation. 968 + 969 +(% style="color:blue" %)**AT Command: **(% style="color:#037691" %)**AT+GTDC** 970 + 971 +Example: AT+GTDC=24 ~/~/ Set the GPS positioning interval to 24h. 972 + 973 +(% style="color:blue" %)**Downlink command:**(%%)** (% style="color:#037691" %)0x12(%%)** 974 + 975 +Format: Command Code (0x12) followed by 3 bytes. 976 + 977 +Example: 24 hours: 24(D)=0x18(H) 978 + 979 + Downlink Payload: **12 00 00 18 **~/~/ AT+GTDC=24 980 + 981 + 982 +Indoor GPS signal is very weak, outdoor positioning is generally recommended. 983 + 984 + 985 + 986 + 987 + 988 + 989 + 990 + 935 935