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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... ... @@ -804,8 +804,6 @@ 804 804 * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected. 805 805 * Blink once when device transmit a packet. 806 806 807 - 808 - 809 809 == 2.8 Firmware Change Log == 810 810 811 811 ... ... @@ -833,37 +833,25 @@ 833 833 [[image:1654831774373-275.png]] 834 834 835 835 836 -((( 837 -(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable. 838 -))) 834 +**(% style="color:blue" %)① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable. 839 839 840 -((( 841 -(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m. 842 -))) 836 +**(% style="color:blue" %)② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m. 843 843 844 -((( 845 -(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m. 846 -))) 838 +**(% style="color:blue" %)③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m. 847 847 848 848 849 -((( 850 850 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: 851 -))) 852 852 853 853 854 854 [[image:1654831797521-720.png]] 855 855 856 856 857 -((( 858 858 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. 859 -))) 860 860 861 861 [[image:1654831810009-716.png]] 862 862 863 863 864 -((( 865 865 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. 866 -))) 867 867 868 868 869 869 ... ... @@ -876,81 +876,58 @@ 876 876 * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe. 877 877 * The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window. 878 878 865 + 866 + 867 + 879 879 = 4. Configure LLDS12 via AT Command or LoRaWAN Downlink = 880 880 881 881 ((( 882 -((( 883 883 Use can configure LLDS12 via AT Command or LoRaWAN Downlink. 884 884 ))) 885 -))) 886 886 887 887 * ((( 888 -((( 889 889 AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]]. 890 890 ))) 891 -))) 892 892 * ((( 893 -((( 894 894 LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]] 895 895 ))) 896 -))) 897 897 898 898 ((( 899 -((( 900 900 901 -))) 902 902 903 -((( 904 904 There are two kinds of commands to configure LLDS12, they are: 905 905 ))) 906 -))) 907 907 908 908 * ((( 909 -((( 910 910 (% style="color:#4f81bd" %)** General Commands**. 911 911 ))) 912 -))) 913 913 914 914 ((( 915 -((( 916 916 These commands are to configure: 917 917 ))) 918 -))) 919 919 920 920 * ((( 921 -((( 922 922 General system settings like: uplink interval. 923 923 ))) 924 -))) 925 925 * ((( 926 -((( 927 927 LoRaWAN protocol & radio related command. 928 928 ))) 929 -))) 930 930 931 931 ((( 932 -((( 933 933 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]] 934 934 ))) 935 -))) 936 936 937 937 ((( 938 -((( 939 939 940 940 ))) 941 -))) 942 942 943 943 * ((( 944 -((( 945 945 (% style="color:#4f81bd" %)** Commands special design for LLDS12** 946 946 ))) 947 -))) 948 948 949 949 ((( 950 -((( 951 951 These commands only valid for LLDS12, as below: 952 952 ))) 953 -))) 954 954 955 955 956 956 ... ... @@ -963,6 +963,7 @@ 963 963 [[image:image-20220607171554-8.png]] 964 964 965 965 929 + 966 966 ((( 967 967 (% style="color:#037691" %)**Downlink Command: 0x01** 968 968 ))) ... ... @@ -980,6 +980,9 @@ 980 980 ))) 981 981 * ((( 982 982 Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 947 + 948 + 949 + 983 983 ))) 984 984 985 985 == 4.2 Set Interrupt Mode == ... ... @@ -1010,6 +1010,7 @@ 1010 1010 Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1011 1011 ))) 1012 1012 980 + 1013 1013 == 4.3 Get Firmware Version Info == 1014 1014 1015 1015 Feature: use downlink to get firmware version. ... ... @@ -1206,14 +1206,10 @@ 1206 1206 1207 1207 1208 1208 ((( 1209 -((( 1210 1210 In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12. 1211 -))) 1212 1212 1213 -((( 1214 1214 LLDS12 will output system info once power on as below: 1215 1215 ))) 1216 -))) 1217 1217 1218 1218 1219 1219 [[image:1654593712276-618.png]] ... ... @@ -1234,9 +1234,7 @@ 1234 1234 == 8.1 AT Commands input doesn’t work == 1235 1235 1236 1236 1237 -((( 1238 1238 In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string. 1239 -))) 1240 1240 1241 1241 1242 1242 == 8.2 Significant error between the output distant value of LiDAR and actual distance == ... ... @@ -1282,8 +1282,6 @@ 1282 1282 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 1283 1283 1284 1284 1285 - 1286 - 1287 1287 = 10. Packing Info = 1288 1288 1289 1289 ... ... @@ -1298,6 +1298,7 @@ 1298 1298 * Package Size / pcs : cm 1299 1299 * Weight / pcs : g 1300 1300 1261 + 1301 1301 = 11. Support = 1302 1302 1303 1303 * 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.