Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual
Last modified by Mengting Qiu on 2025/02/26 15:04
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... ... @@ -831,25 +831,37 @@ 831 831 [[image:1654831774373-275.png]] 832 832 833 833 834 +((( 834 834 (% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable. 836 +))) 835 835 838 +((( 836 836 (% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m. 840 +))) 837 837 842 +((( 838 838 (% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m. 844 +))) 839 839 840 840 847 +((( 841 841 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: 849 +))) 842 842 843 843 844 844 [[image:1654831797521-720.png]] 845 845 846 846 855 +((( 847 847 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. 857 +))) 848 848 849 849 [[image:1654831810009-716.png]] 850 850 851 851 862 +((( 852 852 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. 864 +))) 853 853 854 854 855 855 ... ... @@ -867,52 +867,78 @@ 867 867 = 4. Configure LLDS12 via AT Command or LoRaWAN Downlink = 868 868 869 869 ((( 882 +((( 870 870 Use can configure LLDS12 via AT Command or LoRaWAN Downlink. 871 871 ))) 885 +))) 872 872 873 873 * ((( 888 +((( 874 874 AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]]. 875 875 ))) 891 +))) 876 876 * ((( 893 +((( 877 877 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]] 878 878 ))) 896 +))) 879 879 880 880 ((( 899 +((( 881 881 901 +))) 882 882 903 +((( 883 883 There are two kinds of commands to configure LLDS12, they are: 884 884 ))) 906 +))) 885 885 886 886 * ((( 909 +((( 887 887 (% style="color:#4f81bd" %)** General Commands**. 888 888 ))) 912 +))) 889 889 890 890 ((( 915 +((( 891 891 These commands are to configure: 892 892 ))) 918 +))) 893 893 894 894 * ((( 921 +((( 895 895 General system settings like: uplink interval. 896 896 ))) 924 +))) 897 897 * ((( 926 +((( 898 898 LoRaWAN protocol & radio related command. 899 899 ))) 929 +))) 900 900 901 901 ((( 932 +((( 902 902 They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]] 903 903 ))) 935 +))) 904 904 905 905 ((( 938 +((( 906 906 907 907 ))) 941 +))) 908 908 909 909 * ((( 944 +((( 910 910 (% style="color:#4f81bd" %)** Commands special design for LLDS12** 911 911 ))) 947 +))) 912 912 913 913 ((( 950 +((( 914 914 These commands only valid for LLDS12, as below: 915 915 ))) 953 +))) 916 916 917 917 918 918