Last modified by Mengting Qiu on 2025/02/26 15:04
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From version < 94.9 >
edited by Xiaoling
on 2022/06/10 10:50
To version < 100.7 >
edited by Xiaoling
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... ... @@ -485,14 +485,17 @@
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 +
491 +== 2.6  Frequency Plans ==
492 +
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.
494 +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) ===
498 +=== 2.6.1  EU863-870 (EU868) ===
496 496  
497 497  (((
498 498  (% style="color:blue" %)**Uplink:**
... ... @@ -894,25 +894,74 @@
894 894  
895 895  
896 896  
897 -== 2.9 LED Indicator ==
900 +== 2.7  LED Indicator ==
898 898  
899 -The LSPH01 has an internal LED which is to show the status of different state.
902 +The LLDS12 has an internal LED which is to show the status of different state.
900 900  
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  
906 906  
907 -**Firmware download link:**
909 +== 2.8  ​Firmware Change Log ==
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/]]
910 910  
912 +**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/]]
911 911  
914 +
912 912  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
913 913  
914 914  
915 915  
919 += 3.  LiDAR ToF Measurement =
920 +
921 +== 3.1 Principle of Distance Measurement ==
922 +
923 +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.
924 +
925 +[[image:1654831757579-263.png]]
926 +
927 +
928 +
929 +== 3.2 Distance Measurement Characteristics ==
930 +
931 +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:
932 +
933 +[[image:1654831774373-275.png]]
934 +
935 +
936 +①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
937 +
938 +②Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
939 +
940 +③Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
941 +
942 +
943 +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:
944 +
945 +
946 +[[image:1654831797521-720.png]]
947 +
948 +
949 +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.
950 +
951 +[[image:1654831810009-716.png]]
952 +
953 +
954 +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.
955 +
956 +
957 +
958 +== 3.3 Notice of usage: ==
959 +
960 +Possible invalid /wrong reading for LiDAR ToF tech:
961 +
962 +* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
963 +* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
964 +* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
965 +* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
966 +
967 +
916 916  = 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
917 917  
918 918  (((
... ... @@ -1003,9 +1003,11 @@
1003 1003  
1004 1004  (% style="color:#037691" %)**AT Command: AT+INTMOD**
1005 1005  
1006 -[[image:image-20220607171716-9.png]]
1058 +[[image:image-20220610105806-2.png]]
1007 1007  
1008 1008  
1061 +
1062 +
1009 1009  (((
1010 1010  (% style="color:#037691" %)**Downlink Command: 0x06**
1011 1011  )))
... ... @@ -1026,7 +1026,6 @@
1026 1026  )))
1027 1027  
1028 1028  
1029 -
1030 1030  == 4.3  Get Firmware Version Info ==
1031 1031  
1032 1032  Feature: use downlink to get firmware version.
... ... @@ -1059,7 +1059,7 @@
1059 1059  Always 0x02
1060 1060  )))
1061 1061  
1062 -**Software Type**: Always 0x03 for LSPH01
1115 +**Software Type**: Always 0x03 for LLDS12
1063 1063  
1064 1064  
1065 1065  **Frequency Band**:
... ... @@ -1105,7 +1105,7 @@
1105 1105  
1106 1106  0x06: LSNPK01
1107 1107  
1108 -0x07: LDDS12
1161 +0x07: LLDS12
1109 1109  
1110 1110  
1111 1111  
... ... @@ -1290,7 +1290,6 @@
1290 1290  * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1291 1291  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1292 1292  
1293 -
1294 1294  = 10. ​ Packing Info =
1295 1295  
1296 1296  
... ... @@ -1305,7 +1305,6 @@
1305 1305  * Package Size / pcs : cm
1306 1306  * Weight / pcs : g
1307 1307  
1308 -
1309 1309  = 11.  ​Support =
1310 1310  
1311 1311  * 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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