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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... ... @@ -57,6 +57,8 @@ 57 57 * IP66 Waterproof Enclosure 58 58 * 4000mAh or 8500mAh Battery for long term use 59 59 60 + 61 + 60 60 == 1.3 Specification == 61 61 62 62 === 1.3.1 Rated environmental conditions === ... ... @@ -97,6 +97,8 @@ 97 97 * Sewer 98 98 * Bottom water level monitoring 99 99 102 + 103 + 100 100 == 1.6 Pin mapping and power on == 101 101 102 102 ... ... @@ -237,6 +237,8 @@ 237 237 * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor. 238 238 * If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid. 239 239 244 + 245 + 240 240 === 2.3.3 Interrupt Pin === 241 241 242 242 This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up. ... ... @@ -806,6 +806,8 @@ 806 806 * Solid ON for 5 seconds once device successful Join the network. 807 807 * Blink once when device transmit a packet. 808 808 815 + 816 + 809 809 == 2.8 Firmware Change Log == 810 810 811 811 ... ... @@ -824,7 +824,7 @@ 824 824 [[image:image-20220610172003-2.png]] 825 825 826 826 827 -== 2.10 Battery Analysis == 835 +== 2.10 Battery Analysis == 828 828 829 829 === 2.10.1 Battery Type === 830 830 ... ... @@ -846,30 +846,73 @@ 846 846 [[image:image-20220610172400-3.png]] 847 847 848 848 857 += 3. LiDAR ToF Measurement = 849 849 850 -== =2.10.2Replace thebattery===859 +== 3.1 Principle of Distance Measurement == 851 851 861 +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. 862 + 863 +[[image:1654831757579-263.png]] 864 + 865 + 866 + 867 +== 3.2 Distance Measurement Characteristics == 868 + 869 +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: 870 + 871 +[[image:1654831774373-275.png]] 872 + 873 + 852 852 ((( 853 - Youcan changetheatteryintheLDDS75.The type of battery isotlimited aslong astheoutputsbetween3v to3.6v. Onthemain board,thereisa diode(D1)betweenthe battery and the maincircuit. If you need to use a batterywithlessthan 3.3v, pleaseremovethe D1 and shortcut the two padsofitsotherewon’t be voltage dropbetween battery and main board.875 +(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable. 854 854 ))) 855 855 856 856 ((( 857 - 879 +(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m. 858 858 ))) 859 859 860 860 ((( 861 - Thedefaultbatterypackof LDDS75 includesaER18505 plus super capacitor. If user can’tfind thispack locally,theycan findER18505 orequivalence,which will alsoworkinmost case.TheSPCcanenlargethebattery lifefor highfrequency use (update period below 5 minutes)883 +(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m. 862 862 ))) 863 863 864 864 887 +((( 888 +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: 889 +))) 865 865 866 -= 3. Configure LLDS12 via AT Command or LoRaWAN Downlink = 867 867 892 +[[image:1654831797521-720.png]] 893 + 894 + 868 868 ((( 896 +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. 897 +))) 898 + 899 +[[image:1654831810009-716.png]] 900 + 901 + 869 869 ((( 870 - Use can configureLDDS75viaATCommand orLoRaWANDownlink.903 +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. 871 871 ))) 905 + 906 + 907 + 908 +== 3.3 Notice of usage: == 909 + 910 +Possible invalid /wrong reading for LiDAR ToF tech: 911 + 912 +* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings. 913 +* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong. 914 +* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe. 915 +* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window. 916 + 917 += 4. Configure LLDS12 via AT Command or LoRaWAN Downlink = 918 + 919 +((( 920 +((( 921 +Use can configure LLDS12 via AT Command or LoRaWAN Downlink. 872 872 ))) 923 +))) 873 873 874 874 * ((( 875 875 ((( ... ... @@ -888,7 +888,7 @@ 888 888 ))) 889 889 890 890 ((( 891 -There are two kinds of commands to configure LD DS75, they are:942 +There are two kinds of commands to configure LLDS12, they are: 892 892 ))) 893 893 ))) 894 894 ... ... @@ -929,87 +929,252 @@ 929 929 930 930 * ((( 931 931 ((( 932 -(% style="color:#4f81bd" %)** Commands special design for LD DS75**983 +(% style="color:#4f81bd" %)** Commands special design for LLDS12** 933 933 ))) 934 934 ))) 935 935 936 936 ((( 937 937 ((( 938 -These commands only valid for LD DS75, as below:989 +These commands only valid for LLDS12, as below: 939 939 ))) 940 940 ))) 941 941 942 942 943 943 944 -== 3.1AccessATCommands ==995 +== 4.1 Set Transmit Interval Time == 945 945 946 - LDDS75 supportsATCommand setin the stock firmware.You canuse a USB toTTL adapterto connect to LDDS75 for using ATcommand, asbelow.997 +Feature: Change LoRaWAN End Node Transmit Interval. 947 947 948 - [[image:image-20220610172924-4.png||height="483"width="988"]]999 +(% style="color:#037691" %)**AT Command: AT+TDC** 949 949 1001 +[[image:image-20220607171554-8.png]] 950 950 951 -Or if you have below board, use below connection: 952 952 1004 +((( 1005 +(% style="color:#037691" %)**Downlink Command: 0x01** 1006 +))) 953 953 954 -[[image:image-20220610172924-5.png]] 1008 +((( 1009 +Format: Command Code (0x01) followed by 3 bytes time value. 1010 +))) 955 955 1012 +((( 1013 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01. 1014 +))) 956 956 957 -In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below: 1016 +* ((( 1017 +Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 1018 +))) 1019 +* ((( 1020 +Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 1021 +))) 958 958 1023 +== 4.2 Set Interrupt Mode == 959 959 960 - [[image:image-20220610172924-6.png||height="601"width="860"]]1025 +Feature, Set Interrupt mode for GPIO_EXIT. 961 961 1027 +(% style="color:#037691" %)**AT Command: AT+INTMOD** 962 962 1029 +[[image:image-20220610105806-2.png]] 963 963 964 -== 3.2 Set Transmit Interval Time == 965 965 966 -Feature: Change LoRaWAN End Node Transmit Interval. 1032 +((( 1033 +(% style="color:#037691" %)**Downlink Command: 0x06** 1034 +))) 967 967 968 -(% style="color:#037691" %)**AT Command: AT+TDC** 1036 +((( 1037 +Format: Command Code (0x06) followed by 3 bytes. 1038 +))) 969 969 970 -[[image:image-20220610173409-7.png]] 1040 +((( 1041 +This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06. 1042 +))) 971 971 1044 +* ((( 1045 +Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1046 +))) 1047 +* ((( 1048 +Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1049 +))) 972 972 1051 +== 4.3 Get Firmware Version Info == 1052 + 1053 +Feature: use downlink to get firmware version. 1054 + 1055 +(% style="color:#037691" %)**Downlink Command: 0x26** 1056 + 1057 +[[image:image-20220607171917-10.png]] 1058 + 1059 +* Reply to the confirmation package: 26 01 1060 +* Reply to non-confirmed packet: 26 00 1061 + 1062 +Device will send an uplink after got this downlink command. With below payload: 1063 + 1064 +Configures info payload: 1065 + 1066 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 1067 +|=((( 1068 +**Size(bytes)** 1069 +)))|=**1**|=**1**|=**1**|=**1**|=**1**|=**5**|=**1** 1070 +|**Value**|Software Type|((( 1071 +Frequency 1072 + 1073 +Band 1074 +)))|Sub-band|((( 1075 +Firmware 1076 + 1077 +Version 1078 +)))|Sensor Type|Reserve|((( 1079 +[[Message Type>>||anchor="H2.3.7A0MessageType"]] 1080 +Always 0x02 1081 +))) 1082 + 1083 +**Software Type**: Always 0x03 for LLDS12 1084 + 1085 + 1086 +**Frequency Band**: 1087 + 1088 +*0x01: EU868 1089 + 1090 +*0x02: US915 1091 + 1092 +*0x03: IN865 1093 + 1094 +*0x04: AU915 1095 + 1096 +*0x05: KZ865 1097 + 1098 +*0x06: RU864 1099 + 1100 +*0x07: AS923 1101 + 1102 +*0x08: AS923-1 1103 + 1104 +*0x09: AS923-2 1105 + 1106 +*0xa0: AS923-3 1107 + 1108 + 1109 +**Sub-Band**: value 0x00 ~~ 0x08 1110 + 1111 + 1112 +**Firmware Version**: 0x0100, Means: v1.0.0 version 1113 + 1114 + 1115 +**Sensor Type**: 1116 + 1117 +0x01: LSE01 1118 + 1119 +0x02: LDDS75 1120 + 1121 +0x03: LDDS20 1122 + 1123 +0x04: LLMS01 1124 + 1125 +0x05: LSPH01 1126 + 1127 +0x06: LSNPK01 1128 + 1129 +0x07: LLDS12 1130 + 1131 + 1132 + 1133 += 5. Battery & How to replace = 1134 + 1135 +== 5.1 Battery Type == 1136 + 973 973 ((( 974 - (%style="color:#037691"%)**DownlinkCommand:0x01**1138 +LLDS12 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter. 975 975 ))) 976 976 977 977 ((( 978 - (((979 - Format: Command Code (0x01)followed by 3 bytes time value.1142 +The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 1143 +))) 980 980 981 - If the downlink payload=0100003C, itmeans set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.1145 +[[image:1654593587246-335.png]] 982 982 983 -* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 984 -* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 1147 + 1148 +Minimum Working Voltage for the LLDS12: 1149 + 1150 +LLDS12: 2.45v ~~ 3.6v 1151 + 1152 + 1153 + 1154 +== 5.2 Replace Battery == 1155 + 1156 +((( 1157 +Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery. 985 985 ))) 986 986 1160 +((( 1161 +And make sure the positive and negative pins match. 1162 +))) 987 987 988 - 1164 + 1165 + 1166 +== 5.3 Power Consumption Analyze == 1167 + 1168 +((( 1169 +Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval. 989 989 ))) 990 990 991 -== 3.3 Set Interrupt Mode == 1172 +((( 1173 +Instruction to use as below: 1174 +))) 992 992 993 -Feature, Set Interrupt mode for GPIO_EXIT. 994 994 995 - (% style="color:#037691"%)**DownlinkCommand:AT+INTMOD**1177 +**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: 996 996 997 -[[ima ge:image-20220610105907-1.png]]1179 +[[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]] 998 998 999 999 1000 - (% style="color:#037691"%)**DownlinkCommand:0x06**1182 +**Step 2**: Open it and choose 1001 1001 1002 -Format: Command Code (0x06) followed by 3 bytes. 1184 +* Product Model 1185 +* Uplink Interval 1186 +* Working Mode 1003 1003 1004 - This meansthat the interruptmodeofthednode issetto0x000003=3 (risingedgetrigger), and thetype code is 06.1188 +And the Life expectation in difference case will be shown on the right. 1005 1005 1006 -* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode 1007 -* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger 1190 +[[image:1654593605679-189.png]] 1008 1008 1009 1009 1193 +The battery related documents as below: 1010 1010 1195 +* ((( 1196 +[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]], 1197 +))) 1198 +* ((( 1199 +[[Lithium-Thionyl Chloride Battery datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]], 1200 +))) 1201 +* ((( 1202 +[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]] 1203 +))) 1011 1011 1205 +[[image:image-20220607172042-11.png]] 1012 1012 1207 + 1208 + 1209 +=== 5.3.1 Battery Note === 1210 + 1211 +((( 1212 +The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased. 1213 +))) 1214 + 1215 + 1216 + 1217 +=== 5.3.2 Replace the battery === 1218 + 1219 +((( 1220 +You can change the battery in the LLDS12.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board. 1221 +))) 1222 + 1223 +((( 1224 +The default battery pack of LLDS12 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes) 1225 +))) 1226 + 1227 + 1228 + 1013 1013 = 6. Use AT Command = 1014 1014 1015 1015 == 6.1 Access AT Commands == ... ... @@ -1086,10 +1086,10 @@ 1086 1086 1087 1087 1088 1088 1089 -= 6. Order Info =1305 += 9. Order Info = 1090 1090 1091 1091 1092 -Part Number: (% style="color:blue" %)**LD DS75-XX-YY**1308 +Part Number: (% style="color:blue" %)**LLDS12-XX** 1093 1093 1094 1094 1095 1095 (% style="color:blue" %)**XX**(%%): The default frequency band ... ... @@ -1103,19 +1103,12 @@ 1103 1103 * (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 1104 1104 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 1105 1105 1106 - (% style="color:blue"%)**YY**(%%):BatteryOption1322 += 10. Packing Info = 1107 1107 1108 -* **(% style="color:red" %)4**(%%): 4000mAh battery 1109 -* **(% style="color:red" %)8**(%%): 8500mAh battery 1110 1110 1111 - 1112 - 1113 -= 7. Packing Info = 1114 - 1115 - 1116 1116 **Package Includes**: 1117 1117 1118 -* LD DS75LoRaWAN DistanceDetectionSensor x 11327 +* LLDS12 LoRaWAN LiDAR Distance Sensor x 1 1119 1119 1120 1120 **Dimension and weight**: 1121 1121 ... ... @@ -1124,9 +1124,7 @@ 1124 1124 * Package Size / pcs : cm 1125 1125 * Weight / pcs : g 1126 1126 1336 += 11. Support = 1127 1127 1128 - 1129 -= 8. Support = 1130 - 1131 1131 * 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. 1132 1132 * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]].
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