Last modified by Mengting Qiu on 2025/02/26 15:04
<
From version < 100.2 >
edited by Xiaoling
on 2022/06/10 11:31
To version < 94.7 >
edited by Xiaoling
on 2022/06/10 10:46
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -912,55 +912,7 @@
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 -= 3.  LiDAR ToF Measurement =
916 916  
917 -== 3.1 Principle of Distance Measurement ==
918 -
919 -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.
920 -
921 -[[image:1654831757579-263.png]]
922 -
923 -
924 -
925 -== 3.2 Distance Measurement Characteristics ==
926 -
927 -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:
928 -
929 -[[image:1654831774373-275.png]]
930 -
931 -
932 -①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
933 -
934 -②Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
935 -
936 -③Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
937 -
938 -
939 -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:
940 -
941 -
942 -[[image:1654831797521-720.png]]
943 -
944 -
945 -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.
946 -
947 -[[image:1654831810009-716.png]]
948 -
949 -
950 -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.
951 -
952 -
953 -
954 -== 3.3 Notice of usage: ==
955 -
956 -Possible invalid /wrong reading for LiDAR ToF tech:
957 -
958 -* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
959 -* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
960 -* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
961 -* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
962 -
963 -
964 964  = 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
965 965  
966 966  (((
... ... @@ -977,7 +977,7 @@
977 977  (((
978 978  
979 979  
980 -There are two kinds of commands to configure LLDS12, they are:
932 +There are two kinds of commands to configure LSPH01, they are:
981 981  )))
982 982  
983 983  * (((
... ... @@ -1008,12 +1008,12 @@
1008 1008  )))
1009 1009  
1010 1010  (((
1011 -These commands only valid for LLDS12, as below:
963 +These commands only valid for LSPH01, as below:
1012 1012  )))
1013 1013  
1014 1014  
1015 1015  
1016 -== 4.1  Set Transmit Interval Time ==
968 +== 3.1 Set Transmit Interval Time ==
1017 1017  
1018 1018  Feature: Change LoRaWAN End Node Transmit Interval.
1019 1019  
... ... @@ -1045,17 +1045,15 @@
1045 1045  
1046 1046  )))
1047 1047  
1048 -== 4.2  Set Interrupt Mode ==
1000 +== 3.2 Set Interrupt Mode ==
1049 1049  
1050 1050  Feature, Set Interrupt mode for GPIO_EXIT.
1051 1051  
1052 1052  (% style="color:#037691" %)**AT Command: AT+INTMOD**
1053 1053  
1054 -[[image:image-20220610105806-2.png]]
1006 +[[image:image-20220607171716-9.png]]
1055 1055  
1056 1056  
1057 -
1058 -
1059 1059  (((
1060 1060  (% style="color:#037691" %)**Downlink Command: 0x06**
1061 1061  )))
... ... @@ -1075,11 +1075,20 @@
1075 1075  Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1076 1076  )))
1077 1077  
1028 +(((
1029 +
1030 +)))
1078 1078  
1079 1079  
1080 1080  
1081 -== 4.3  Get Firmware Version Info ==
1034 +== 3.3 Calibrate Sensor ==
1082 1082  
1036 +Detail See [[Calibration Guide>>||anchor="H2.7Calibration"]] for the user of 0x13 and 0x14 downlink commands
1037 +
1038 +
1039 +
1040 +== 3.4 Get Firmware Version Info ==
1041 +
1083 1083  Feature: use downlink to get firmware version.
1084 1084  
1085 1085  (% style="color:#037691" %)**Downlink Command: 0x26**
... ... @@ -1110,7 +1110,7 @@
1110 1110  Always 0x02
1111 1111  )))
1112 1112  
1113 -**Software Type**: Always 0x03 for LLDS12
1072 +**Software Type**: Always 0x03 for LSPH01
1114 1114  
1115 1115  
1116 1116  **Frequency Band**:
... ... @@ -1156,7 +1156,7 @@
1156 1156  
1157 1157  0x06: LSNPK01
1158 1158  
1159 -0x07: LLDS12
1118 +0x07: LDDS12
1160 1160  
1161 1161  
1162 1162  
... ... @@ -1341,6 +1341,7 @@
1341 1341  * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
1342 1342  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
1343 1343  
1303 +
1344 1344  = 10. ​ Packing Info =
1345 1345  
1346 1346  
... ... @@ -1355,6 +1355,7 @@
1355 1355  * Package Size / pcs : cm
1356 1356  * Weight / pcs : g
1357 1357  
1318 +
1358 1358  = 11.  ​Support =
1359 1359  
1360 1360  * 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.
1654831757579-263.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -59.3 KB
Content
1654831774373-275.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -91.8 KB
Content
1654831797521-720.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -5.1 KB
Content
1654831810009-716.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -59.5 KB
Content
image-20220610105806-2.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -15.5 KB
Content

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0