Last modified by Mengting Qiu on 2025/07/03 18:55
From version 135.1
edited by Edwin Chen
on 2024/02/08 00:17
on 2024/02/08 00:17
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To version 145.1
edited by Edwin Chen
on 2024/02/29 23:34
on 2024/02/29 23:34
Change comment:
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... ... @@ -22,9 +22,13 @@ 22 22 To attache NB-IoT sensors to NB-IoT Network, You need to: 23 23 24 24 1. Get a NB-IoT SIM card from Service Provider. (Not the same as the SIM card we use in mobile phone) 25 -1. Insert the SIM card to Sensor 25 +1. Power Off End Node ( See below for the power off/on position) 26 +1. Insert the SIM card to Sensor. ( See below for direction) 27 +1. Power On End Node 26 26 1. [[Configure APN>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20configure%20APN%20in%20the%20node/]] in the sensor (AT+APN=<APN>) 27 27 30 +[[image:image-20240208102804-1.png||height="286" width="696"]] 31 + 28 28 [[image:image-20230808205045-1.png||height="293" width="438"]] 29 29 30 30 After doing above, the NB-IoT Sensors should be able to attach to NB-IoT network . ... ... @@ -90,8 +90,6 @@ 90 90 91 91 * (% style="color:#037691" %)**AT+SERVADDR=120.24.4.116,5601** (%%) ~/~/ Set UDP server address and port 92 92 93 -* (% style="color:#037691" %)**AT+CFM=1** (%%) ~/~/ If the server does not respond, this command is unnecessary 94 - 95 95 [[image:image-20230802112413-2.png]] 96 96 97 97 ... ... @@ -641,6 +641,15 @@ 641 641 1*. **AT+TDC=7200** ~/~/ Uplink every 2 hours. 642 642 1*. this will mean each uplink will actually include the 6 uplink data (24 set data which cover 12 hours). So if device doesn;t lost 6 continue data. There will not data lost. 643 643 646 + 647 +== 4.2 Why the uplink JSON format is not standard? == 648 + 649 +The json format in uplink packet is not standard Json format. Below is the example. This is to make the payload as short as possible, due to NB-IoT transmit limition, a standard Json is not able to include 32 sets of sensors data with timestamp. 650 + 651 +[[image:image-20240229233154-1.png]] 652 + 653 + 654 + 644 644 = 5. Trouble Shooting: = 645 645 646 646 == 5.1 Checklist for debuging Network Connection issue. Signal Strenght:99 issue. == ... ... @@ -669,7 +669,7 @@ 669 669 If you have check all above and still fail. please send console log files (as many as possible) to [[support@dragino.com>>mailto:support@dragino.com]] so we can check. 670 670 671 671 672 -== 5.2 NBIOT did not respond issue.==683 +== 5.2 Issue: "NBIOT did not respond" == 673 673 674 674 (% class="box errormessage" %) 675 675 ((( ... ... @@ -694,3 +694,26 @@ 694 694 4) push reset button. 695 695 696 696 [[image:image-20240208001740-1.png]] 708 + 709 + 710 +== 5.3 Issue: "Failed to readI MSI number" == 711 + 712 +(% class="box errormessage" %) 713 +((( 714 +[18170]Failed to read IMSI:1umber. 715 +[20109]Failed to read IMSI numoer. 716 +[22048]Failed to read IMSI number. 717 +[29842lRestart the module... 718 +))) 719 + 720 +Make sure that the SIM card is insert in correct direction and device is power off/on during insert. Here is reference link: [[Insert SIM Card>>||anchor="H2.1GeneralConfiguretoattachnetwork"]]. 721 + 722 + 723 +== 5.4 Why sometime the AT Command is slow in reponse? == 724 + 725 +When the MCU is communicating with the NB-IoT module, the MCU response of AT Command will become slower, it might takes several seconds to response. 726 + 727 +[[image:image-20240226111928-1.png]] 728 + 729 + 730 +
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