Changes for page Notes for ChirpStack

Last modified by Kilight Cao on 2024/09/24 15:23
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From version < 217.1 >
edited by Kilight Cao
on 2024/07/17 10:26
To version < 243.1 >
edited by Kilight Cao
on 2024/09/24 15:05
>
Change comment: Uploaded new attachment "SN50v3-LB_协议008（AU915）(1).bin", version {1}

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... ... @@ -45,7 +45,7 @@
45 45  
46 46  **Step 1: Add application**
47 47  
48 -[[image:image-20230702094608-1.png||height="537" width="1015"]]
48 +[[image:image-20240831154333-1.png||height="553" width="1074"]]
49 49  
50 50  
51 51  **Step 2：Fill name**
... ... @@ -629,10 +629,140 @@
629 629  [[image:image-20220531174046-19.png]]
630 630  
631 631  
632 -= 9.  Multiply Uplink in ChirpStack =
632 += 9.  Chirpstack Multicast Configuration =
633 633  
634 634  
635 +== 9.1  Introduction ==
636 +
637 +ChirpStack has support for creating multicast-groups to which devices can be assigned. When enqueueing a downlink payload for a multicast-group, ChirpStack will analyze which gateways must be used for broadcasting to cover the complete multicast-group. This means that potentially, a single multicast downlink payload will be emitted multiple times.
638 +
639 +Multicast can be used for the following device-classes:
640 +
641 +* Class-B
642 +* Class-C
643 +
644 +== 9.2  Example to configure chirpstack Multicast ==
645 +
646 +
647 +This section illustrates how to configure ChirpStack Multicast. Below is the network structure, we use our LPS8v2 as the LoRaWAN gateway and two SN50v3-LB as the LoRaWAN end-node here.
648 +
649 +[[image:image-20240923105725-1.png]]
650 +
651 +
652 +This example assumes users already have:
653 +
654 +* SN50v3-LB register on ChirpStack server already
655 +* The user is able to see the data on the ChirpStack server device page.
656 +
657 +(% class="wikigeneratedid" %)
658 +(% style="color:red" %)**Note: **(%%)SN50v3-LB must enable CLASS C and DISFCNTCHECK(The downlink fcnt is not compared with the fcnt of the node).
659 +
660 +(% class="wikigeneratedid" %)
661 +AT command: **AT+CLASS=C**
662 +
663 +(% class="wikigeneratedid" %)
664 + **AT+DISFCNTCHECK=1**
665 +
666 +
667 +=== Step 1. Create the multicast group ===
668 +
669 +
670 +Create the multicast group on the corresponding **Application~-~->multicast groups~-~->Add multicast-group** interface, For example, multicast_test01_au915
671 +
672 +[[image:image-20240923141847-3.png||height="620" width="1207"]]
673 +
674 +
675 +Enter the Multicast address,Multicast network session key,Multicast application session key.
676 +
677 +Use the default LoRaWAN settings, as below:
678 +
679 +* EU868: 869525000hz, DR0
680 +
681 +* US915: 923300000hz, DR8
682 +
683 +* CN470: 505300000hz, DR0
684 +
685 +* AU915: 923300000hz, DR8
686 +
687 +* AS923: 923200000hz, DR2
688 +
689 +* KR920: 921900000hz, DR0
690 +
691 +* IN865: 866550000hz, DR2
692 +
693 +* RU864: 869100000hz, DR0
694 +
695 +Group type: **Class-C**
696 +
697 +Class-C scheduling type : **Delay**
698 +
699 +[[image:image-20240923142446-5.png||height="720" width="1208"]]
700 +
701 +
702 +=== Step 2. Add gateways and devices to the multicast group ===
703 +
704 +
705 +Select a gateway on the "**Gateways**" screen, click "**selected gateways"**, and click "**Add to multicast-group**" to add the gateway to the corresponding multicast group, for example, **multicast_test01_au915**.
706 +
707 +[[image:image-20240923144335-6.png||height="619" width="1209"]]
708 +
709 +[[image:image-20240923144418-7.png||height="572" width="1206"]]
710 +
711 +
712 +On the **Application->Devices** interface, select two SN50v3-LB nodes registered with multicast support, and then click "**Selected devices**". and click "**Add to multicast-group**" to add the node to the corresponding multicast group
713 +
714 +[[image:image-20240923144749-9.png||height="623" width="1211"]]
715 +
716 +
717 +Access the multicast group to check whether two SN50V3-LBs and gateways are added successfully
718 +
719 +[[image:image-20240923145148-10.png||height="601" width="1218"]]
720 +
721 +
722 +=== Step 3. Use the API for multicast Downlink ===
723 +
724 +
725 +To use API Downlink, user first need to generate an API key
726 +
727 +[[image:image-20240923145624-18.png||height="429" width="1211"]]
728 +
729 +[[image:image-20240923145520-16.png||height="422" width="1212"]]
730 +
731 +
732 +For example:**[[https:~~/~~/www.chirpstack.io/docs/chirpstack/api/index.html>>url:https://www.chirpstack.io/docs/chirpstack/api/index.html]]**
733 +
734 +[[image:image-20240923145953-21.png||height="808" width="1222"]]
735 +
736 +
737 +Users can access the Linux console of the gateway via SSH, and then use the curl command to multicast Downlink
738 +
739 +The format is as follows:
740 +
741 +(% class="box infomessage" %)
635 635  (((
743 +curl -X POST 'http:~/~/**Chirpstack_Server_Address**:8090/api/multicast-groups/**Multicast_Groups_ID**/queue' -H "Content-Type: application/json" -H "Authorization: Bearer **eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJhdWQiOiJjaGlycHN0YWNrIiwiaXNzIjoiY2hpcnBzdGFjayIsInN1YiI6IjM3YmRiNzBjLTNjODgtNDFjMi04YmQ2LTgyMDI4ZjdkNzY3NyIsInR5cCI6ImtleSJ9.p1xvRP1PAdwLnLAJn9w6ef612KM8oPZSa_2v4UYPV0w**" -d '{
744 + "queueItem": {
745 + "data": "EjRWeA==",
746 + "fCnt": 0,
747 + "fPort": 123
748 + }
749 +}'
750 +)))
751 +
752 +In the command,eyJ........._2v4UYPV0w is the API key, which can be obtained from the Chirpstack server and the data format is base64,
753 +
754 +
755 +=== Result ===
756 +
757 +Connecting to the SN50v3-LB using the serial USB-TTL port can check that two SN50v3-LBs are receiving Downlink at the same time
758 +
759 +[[image:image-20240923151814-23.png||height="563" width="1255"]]
760 +
761 +
762 += 10.  Multiply Uplink in ChirpStack =
763 +
764 +
765 +(((
636 636  nbtrans field is the value to determine the re-transmission time for unconfirmed uplink data.
637 637  )))
638 638  
... ... @@ -672,7 +672,7 @@
672 672  [[image:image-20220601102430-1.png||height="508" width="1120"]]
673 673  
674 674  
675 -== 9.1  Solution ==
805 +== 10.1  Solution ==
676 676  
677 677  
678 678  This example uses the Windows version as a template, other versions can refer to this. Similiar reference: [[https:~~/~~/confluence.alitecs.de/plugins/servlet/mobile?contentId=79790102#content/view/79790102>>url:https://confluence.alitecs.de/plugins/servlet/mobile?contentId=79790102#content/view/79790102]]
... ... @@ -791,7 +791,7 @@
791 791  Finish.
792 792  
793 793  
794 -= 10.  How to store/get all data traffic for a specific sensor, including raw payload, and uplink/ downlink history. =
924 += 11.  How to store/get all data traffic for a specific sensor, including raw payload, and uplink/ downlink history. =
795 795  
796 796  
797 797  All data is published to the MQTT topics. if you want to store/get the data, you would have to create an MQTT handler and store the data yourself.
... ... @@ -840,7 +840,7 @@
840 840  [[image:image-20221012173639-1.png||height="273" width="1206"]]
841 841  
842 842  
843 -= 11.  How to use Chirpstack API to batch register Sensor Node/Gateway in Chistapstack Server =
973 += 12.  How to use Chirpstack API to batch register Sensor Node/Gateway in Chistapstack Server =
844 844  
845 845  The following example is based on the built-in ChirpStack server for LPS8V2
846 846  
... ... @@ -847,7 +847,7 @@
847 847  [[image:image-20231201174640-1.png||height="584" width="1148"]]
848 848  
849 849  
850 -== **11.1 Generate API Tokens** ==
980 +== **12.1 Generate API Tokens** ==
851 851  
852 852  Access the built-in chirpstack , click "**API Key**" and "**Add API Key**".
853 853  
... ... @@ -860,7 +860,7 @@
860 860  [[image:image-20231204104802-1.png]]
861 861  
862 862  
863 -== **11.2 Template file** ==
993 +== **12.2 Template file** ==
864 864  
865 865  
866 866  Click on **"Template File Download"**, the user will download a **register.csv** template file,
... ... @@ -882,7 +882,7 @@
882 882  
883 883  
884 884  
885 -== **11.3 Batch Register** ==
1015 +== **12.3 Batch Register** ==
886 886  
887 887  [[image:image-20231204113136-11.png||height="362" width="1062"]]
888 888  
... ... @@ -895,7 +895,7 @@
895 895  
896 896  
897 897  
898 -= 12.  Example: Use Local Server ChirpStack and Node-Red in LPS8v2 =
1028 += 13.  Example: Use Local Server ChirpStack and Node-Red in LPS8v2 =
899 899  
900 900  
901 901  LPS8v2 includes a local ChirpStack Server and Node-Red. This example shows how to configure LHT65N to use with the local Node-Red server. This example assumes users already have:
... ... @@ -906,7 +906,7 @@
906 906  Below are the steps to plot the sensor data on LPS8v2 Node-Red.
907 907  
908 908  
909 -== 12.1 Link Node-Red to Local ChirpStack ==
1039 +== 13.1 Link Node-Red to Local ChirpStack ==
910 910  
911 911  
912 912  Users can download the Node-Red decoder from this link and import it into the Node-Red platform:  **[[attach:LHT65N-ChirpStack-node-red.json||target="_blank"]]**
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940 940  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Notes%20for%20TTN/WebHome/image-20220914140918-5.png?width=1121&height=602&rev=1.1||alt="image-20220914140918-5.png"]]
941 941  
942 942  
943 -== 12.2 Check result. ==
1073 +== 13.2 Check result. ==
944 944  
945 945  
946 946  Users can check logs by adding debug.
... ... @@ -950,9 +950,9 @@
950 950  [[image:image-20230529150923-1.png||height="424" width="1118"]]
951 951  
952 952  
953 -= 13.  Trouble Shooting =
1083 += 14.  Trouble Shooting =
954 954  
955 -== 13.1  MIC Mismatch or MIC Failed ==
1085 +== 14.1  MIC Mismatch or MIC Failed ==
956 956  
957 957  
958 958  (((
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963 963  Under normal circumstances, users need to change the APPKEY to solve this problem.
964 964  
965 965  
966 -== 13.2  The node is very close to the gateway, but the signal is poor ==
1096 +== 14.2  The node is very close to the gateway, but the signal is poor ==
967 967  
968 968  
969 969  If you are using US915 or AU915, you found the frequency points of different subband ranges in your uplink
... ... @@ -992,7 +992,7 @@
992 992  **Note: lorawan's protocol link——[[LoRaWAN® Regional Parameters v1.0.3revA (lora-alliance.org)>>url:https://resources.lora-alliance.org/document/lorawan-regional-parameters-v1-0-3reva]]**
993 993  
994 994  
995 -== 13.3  ChirpStackv4 node device displays "UPLINK_F_CNT_RETRANSMISSION" ==
1125 +== 14.3  ChirpStackv4 node device displays "UPLINK_F_CNT_RETRANSMISSION" ==
996 996  
997 997  
998 998  This is because the node's packets are retransmitted, and the Fcnt of these packets is the same.
... ... @@ -999,16 +999,33 @@
999 999  
1000 1000  The user can Disable frame-counter validation on the chirpstack node and this warning message will not appear in the logs.
1001 1001  
1002 -[[image:https://qiye.aliyun.com/attachment/downloadex?ri=%2Falimail%2FinternalLinks%2FrefreshToken&o=1&et=normal&ext=png&e=kilight%40dragino.cc&f=008dd83c-c893-43e6-8ad3-731d3b8d7be0&m=2_0%3ADzzzzyNOXCB%24---.YRE7agI&n=image001.png]][[image:image-20240717085339-1.jpeg]]
1003 1003  
1004 -[[image:image-20240717090537-2.jpeg||height="589" width="1078"]]
1133 +The packet is retransmitted because the node device has enabled the acknowledgment uplink packet mode and the node cannot receive the ACK acknowledgment packet delivered by the gateway.
1005 1005  
1006 1006  
1136 +**The possible reasons are: **
1137 +
1138 +~1. The signal of the node device and the gateway is not good
1139 +
1140 +2. Too many node devices affect the downlink of the gateway
1141 +
1142 +
1143 +[[image:image-20240717085339-1.jpeg]]
1144 +
1145 +
1146 +* **Disable frame-counter validation**
1147 +
1148 +[[image:image-20240717102613-5.png||height="803" width="1211"]]
1149 +
1150 +
1151 +* **Result**
1152 +
1007 1007  [[image:image-20240717092428-4.jpeg]]
1008 1008  
1009 -== 13.4  How to get the log information of the node？ ==
1010 1010  
1156 +== 14.4  How to get the log information of the node？ ==
1011 1011  
1158 +
1012 1012  ~1. Get information about a single node.
1013 1013  
1014 1014  * Download this file in the node's live data interface.
SN50v3-LB_协议008（AU915）(1).bin
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