Last modified by Mengting Qiu on 2025/02/26 15:04
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From version < 95.4 >
edited by Xiaoling
on 2022/06/10 11:18
To version < 100.9 >
edited by Xiaoling
on 2022/06/10 11:37
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... ... @@ -485,14 +485,16 @@
485 485  * Reply to the confirmation package: 14 01
486 486  * Reply to non-confirmed packet: 14 00
487 487  
488 -== 2.8 Frequency Plans ==
489 489  
489 +
490 +== 2.6  Frequency Plans ==
491 +
490 490  (((
491 -The LSPH01 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
493 +The LLDS12 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
492 492  )))
493 493  
494 494  
495 -=== 2.8.1 EU863-870 (EU868) ===
497 +=== 2.6.1  EU863-870 (EU868) ===
496 496  
497 497  (((
498 498  (% style="color:blue" %)**Uplink:**
... ... @@ -552,7 +552,7 @@
552 552  
553 553  
554 554  
555 -=== 2.8.2 US902-928(US915) ===
557 +=== 2.6.2  US902-928(US915) ===
556 556  
557 557  (((
558 558  Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
... ... @@ -569,8 +569,12 @@
569 569  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
570 570  * Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
571 571  
572 -=== 2.8.3 CN470-510 (CN470) ===
573 573  
575 +
576 +
577 +
578 +=== 2.6.3 CN470-510 (CN470) ===
579 +
574 574  (((
575 575  Used in China, Default use CHE=1
576 576  )))
... ... @@ -657,8 +657,9 @@
657 657  
658 658  
659 659  
660 -=== 2.8.4 AU915-928(AU915) ===
661 661  
667 +=== 2.6.4 AU915-928(AU915) ===
668 +
662 662  (((
663 663  Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
664 664  )))
... ... @@ -678,8 +678,11 @@
678 678  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
679 679  * Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
680 680  
681 -=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
682 682  
689 +
690 +
691 +=== 2.6.5 AS920-923 & AS923-925 (AS923) ===
692 +
683 683  (((
684 684  (% style="color:blue" %)**Default Uplink channel:**
685 685  )))
... ... @@ -786,8 +786,9 @@
786 786  
787 787  
788 788  
789 -=== 2.8.6 KR920-923 (KR920) ===
790 790  
800 +=== 2.6.6 KR920-923 (KR920) ===
801 +
791 791  (((
792 792  (% style="color:blue" %)**Default channel:**
793 793  )))
... ... @@ -858,8 +858,9 @@
858 858  
859 859  
860 860  
861 -=== 2.8.7 IN865-867 (IN865) ===
862 862  
873 +=== 2.6.7 IN865-867 (IN865) ===
874 +
863 863  (((
864 864  (% style="color:blue" %)**Uplink:**
865 865  )))
... ... @@ -894,19 +894,19 @@
894 894  
895 895  
896 896  
897 -== 2.9 LED Indicator ==
898 898  
899 -The LSPH01 has an internal LED which is to show the status of different state.
910 +== 2.7  LED Indicator ==
900 900  
912 +The LLDS12 has an internal LED which is to show the status of different state.
913 +
901 901  * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
902 902  * Blink once when device transmit a packet.
903 903  
904 -== 2.10 ​Firmware Change Log ==
905 905  
918 +== 2.8  ​Firmware Change Log ==
906 906  
907 -**Firmware download link:**
908 908  
909 -[[http:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/LSPH01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
921 +**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
910 910  
911 911  
912 912  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
... ... @@ -913,6 +913,54 @@
913 913  
914 914  
915 915  
928 += 3.  LiDAR ToF Measurement =
929 +
930 +== 3.1 Principle of Distance Measurement ==
931 +
932 +The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
933 +
934 +[[image:1654831757579-263.png]]
935 +
936 +
937 +
938 +== 3.2 Distance Measurement Characteristics ==
939 +
940 +With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
941 +
942 +[[image:1654831774373-275.png]]
943 +
944 +
945 +①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
946 +
947 +②Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
948 +
949 +③Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
950 +
951 +
952 +Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at the different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
953 +
954 +
955 +[[image:1654831797521-720.png]]
956 +
957 +
958 +In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
959 +
960 +[[image:1654831810009-716.png]]
961 +
962 +
963 +If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
964 +
965 +
966 +
967 +== 3.3 Notice of usage: ==
968 +
969 +Possible invalid /wrong reading for LiDAR ToF tech:
970 +
971 +* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
972 +* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
973 +* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
974 +* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
975 +
916 916  = 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
917 917  
918 918  (((
... ... @@ -1027,8 +1027,6 @@
1027 1027  Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1028 1028  )))
1029 1029  
1030 -
1031 -
1032 1032  == 4.3  Get Firmware Version Info ==
1033 1033  
1034 1034  Feature: use downlink to get firmware version.
... ... @@ -1040,7 +1040,6 @@
1040 1040  * Reply to the confirmation package: 26 01
1041 1041  * Reply to non-confirmed packet: 26 00
1042 1042  
1043 -
1044 1044  Device will send an uplink after got this downlink command. With below payload:
1045 1045  
1046 1046  Configures info payload:
... ... @@ -1293,7 +1293,6 @@
1293 1293  * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1294 1294  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1295 1295  
1296 -
1297 1297  = 10. ​ Packing Info =
1298 1298  
1299 1299  
... ... @@ -1308,7 +1308,6 @@
1308 1308  * Package Size / pcs : cm
1309 1309  * Weight / pcs : g
1310 1310  
1311 -
1312 1312  = 11.  ​Support =
1313 1313  
1314 1314  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
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