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Title
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1 -LDDS75 - LoRaWAN Distance Detection Sensor User Manual
1 +LLDS12-LoRaWAN LiDAR ToF Distance Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:1654846127817-788.png]]
2 +[[image:image-20220610095606-1.png]]
3 3  
4 +
4 4  **Contents:**
5 5  
7 +{{toc/}}
6 6  
7 7  
8 8  
... ... @@ -12,33 +12,38 @@
12 12  
13 13  = 1.  Introduction =
14 14  
15 -== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
17 +== 1.1 ​ What is LoRaWAN LiDAR ToF Distance Sensor ==
16 16  
17 17  (((
18 18  
19 19  
20 20  (((
21 -The Dragino LDDS75 is a (% style="color:#4472c4" %)** LoRaWAN Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:#4472c4" %)** ultrasonic sensing** (%%)technology for distance measurement, and (% style="color:#4472c4" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The LDDS75 can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
23 +The Dragino LLDS12 is a (% style="color:blue" %)**LoRaWAN LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable to measure the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)!. The LiDAR probe uses laser induction technology for distance measurement.
24 +)))
22 22  
26 +(((
27 +The LLDS12 can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
28 +)))
23 23  
24 -It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
30 +(((
31 +It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
32 +)))
25 25  
34 +(((
35 +The LoRa wireless technology used in LLDS12 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
36 +)))
26 26  
27 -The LoRa wireless technology used in LDDS75 allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
38 +(((
39 +LLDS12 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
40 +)))
28 28  
29 -
30 -LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
31 -
32 -
33 -Each LDDS75 pre-loads with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect if there is network coverage, after power on.
34 -
35 -
36 -(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors
42 +(((
43 +Each LLDS12 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
37 37  )))
38 38  )))
39 39  
40 40  
41 -[[image:1654847051249-359.png]]
48 +[[image:1654826306458-414.png]]
42 42  
43 43  
44 44  
... ... @@ -45,45 +45,41 @@
45 45  == ​1.2  Features ==
46 46  
47 47  * LoRaWAN 1.0.3 Class A
48 -* Ultra low power consumption
49 -* Distance Detection by Ultrasonic technology
50 -* Flat object range 280mm - 7500mm
51 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
52 -* Cable Length : 25cm
55 +* Ultra-low power consumption
56 +* Laser technology for distance detection
57 +* Operating Range - 0.1m~~12m①
58 +* Accuracy - ±5cm@(0.1-6m), ±1%@(6m-12m)
59 +* Monitor Battery Level
53 53  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
54 54  * AT Commands to change parameters
55 55  * Uplink on periodically
56 56  * Downlink to change configure
57 -* IP66 Waterproof Enclosure
58 -* 4000mAh or 8500mAh Battery for long term use
64 +* 8500mAh Battery for long term use
59 59  
60 -== 1.3  Specification ==
66 +== 1.3  Probe Specification ==
61 61  
62 -=== 1.3.1  Rated environmental conditions ===
68 +* Storage temperature ：-20℃~~75℃
69 +* Operating temperature - -20℃~~60℃
70 +* Operating Range - 0.1m~~12m①
71 +* Accuracy - ±5cm@(0.1-6m), ±1%@(6m-12m)
72 +* Distance resolution - 5mm
73 +* Ambient light immunity - 70klux
74 +* Enclosure rating - IP65
75 +* Light source - LED
76 +* Central wavelength - 850nm
77 +* FOV - 3.6°
78 +* Material of enclosure - ABS+PC
79 +* Wire length - 25cm
63 63  
64 -[[image:image-20220610154839-1.png]]
81 +== 1.4  Probe Dimension ==
65 65  
66 -**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);**
67 67  
68 -**b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
84 +[[image:1654827224480-952.png]]
69 69  
70 70  
71 -
72 -=== 1.3.2  Effective measurement range Reference beam pattern ===
73 -
74 -**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**[[image:image-20220610155021-2.png||height="440" width="1189"]]
75 -
76 -
77 -
78 -**(2)** The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.[[image:image-20220610155021-3.png||height="437" width="1192"]]
79 -
80 -(% style="display:none" %) (%%)
81 -
82 -
83 83  == 1.5 ​ Applications ==
84 84  
85 85  * Horizontal distance measurement
86 -* Liquid level measurement
87 87  * Parking management system
88 88  * Object proximity and presence detection
89 89  * Intelligent trash can management system
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90 90  * Robot obstacle avoidance
91 91  * Automatic control
92 92  * Sewer
93 -* Bottom water level monitoring
94 94  
95 -
96 96  == 1.6  Pin mapping and power on ==
97 97  
98 98  
99 -[[image:1654847583902-256.png]]
100 +[[image:1654827332142-133.png]]
100 100  
101 101  
102 -= 2.  Configure LDDS75 to connect to LoRaWAN network =
103 += 2.  Configure LLDS12 to connect to LoRaWAN network =
103 103  
104 104  == 2.1  How it works ==
105 105  
106 106  (((
107 -The LDDS75 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LDDS75. If there is coverage of the LoRaWAN network, it will automatically join the network via OTAA and start to send the sensor value
108 +The LLDS12 is configured as LoRaWAN OTAA Class A mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and power on the LLDS12. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
108 108  )))
109 109  
110 110  (((
111 -In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H3.A0ConfigureLDDS75viaATCommandorLoRaWANDownlink"]]to set the keys in the LDDS75.
112 +In case you can’t set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the server, you can [[use AT Commands >>||anchor="H6.A0UseATCommand"]]to set the keys in the LLDS12.
112 112  )))
113 113  
114 114  
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119 119  )))
120 120  
121 121  (((
122 -[[image:1654848616367-242.png]]
123 +[[image:1654827857527-556.png]]
123 123  )))
124 124  
125 125  (((
... ... @@ -127,50 +127,50 @@
127 127  )))
128 128  
129 129  (((
130 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
131 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LSPH01.
131 131  )))
132 132  
133 133  (((
134 -Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
135 +Each LSPH01 is shipped with a sticker with the default device EUI as below:
135 135  )))
136 136  
137 137  [[image:image-20220607170145-1.jpeg]]
138 138  
139 139  
140 -For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
141 141  
142 -Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
142 +You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
143 143  
144 -**Add APP EUI in the application**
145 145  
146 -[[image:image-20220610161353-4.png]]
145 +**Register the device**
147 147  
148 -[[image:image-20220610161353-5.png]]
149 149  
150 -[[image:image-20220610161353-6.png]]
148 +[[image:1654592600093-601.png]]
151 151  
152 152  
153 -[[image:image-20220610161353-7.png]]
154 154  
152 +**Add APP EUI and DEV EUI**
155 155  
156 -You can also choose to create the device manually.
154 +[[image:1654592619856-881.png]]
157 157  
158 - [[image:image-20220610161538-8.png]]
159 159  
160 160  
158 +**Add APP EUI in the application**
161 161  
162 -**Add APP KEY and DEV EUI**
160 +[[image:1654592632656-512.png]]
163 163  
164 -[[image:image-20220610161538-9.png]]
165 165  
166 166  
164 +**Add APP KEY**
167 167  
168 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
166 +[[image:1654592653453-934.png]]
169 169  
170 170  
169 +(% style="color:blue" %)**Step 2**(%%): Power on LLDS12
170 +
171 +
171 171  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
172 172  
173 -[[image:image-20220610161724-10.png]]
174 +[[image:image-20220607170442-2.png]]
174 174  
175 175  
176 176  (((
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830 830  [[image:1654831774373-275.png]]
831 831  
832 832  
833 -(((
834 834  (% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
835 -)))
836 836  
837 -(((
838 838  (% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
839 -)))
840 840  
841 -(((
842 842  (% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
843 -)))
844 844  
845 845  
846 -(((
847 847  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:
848 -)))
849 849  
850 850  
851 851  [[image:1654831797521-720.png]]
852 852  
853 853  
854 -(((
855 855  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.
856 -)))
857 857  
858 858  [[image:1654831810009-716.png]]
859 859  
860 860  
861 -(((
862 862  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.
863 -)))
864 864  
865 865  
866 866  
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873 873  * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
874 874  * The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
875 875  
865 +
866 +
876 876  = 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
877 877  
878 878  (((
879 -(((
880 880  Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
881 881  )))
882 -)))
883 883  
884 884  * (((
885 -(((
886 886  AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
887 887  )))
888 -)))
889 889  * (((
890 -(((
891 891  LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
892 892  )))
893 -)))
894 894  
895 895  (((
896 -(((
897 897  
898 -)))
899 899  
900 -(((
901 901  There are two kinds of commands to configure LLDS12, they are:
902 902  )))
903 -)))
904 904  
905 905  * (((
906 -(((
907 907  (% style="color:#4f81bd" %)** General Commands**.
908 908  )))
909 -)))
910 910  
911 911  (((
912 -(((
913 913  These commands are to configure:
914 914  )))
915 -)))
916 916  
917 917  * (((
918 -(((
919 919  General system settings like: uplink interval.
920 920  )))
921 -)))
922 922  * (((
923 -(((
924 924  LoRaWAN protocol & radio related command.
925 925  )))
926 -)))
927 927  
928 928  (((
929 -(((
930 930  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]]
931 931  )))
932 -)))
933 933  
934 934  (((
935 -(((
936 936  
937 937  )))
938 -)))
939 939  
940 940  * (((
941 -(((
942 942  (% style="color:#4f81bd" %)** Commands special design for LLDS12**
943 943  )))
944 -)))
945 945  
946 946  (((
947 -(((
948 948  These commands only valid for LLDS12, as below:
949 949  )))
950 -)))
951 951  
952 952  
953 953  
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960 960  [[image:image-20220607171554-8.png]]
961 961  
962 962  
928 +
963 963  (((
964 964  (% style="color:#037691" %)**Downlink Command: 0x01**
965 965  )))
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977 977  )))
978 978  * (((
979 979  Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
946 +
947 +
948 +
980 980  )))
981 981  
982 982  == 4.2  Set Interrupt Mode ==
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1203 1203  
1204 1204  
1205 1205  (((
1206 -(((
1207 1207  In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
1208 -)))
1209 1209  
1210 -(((
1211 1211  LLDS12 will output system info once power on as below:
1212 1212  )))
1213 -)))
1214 1214  
1215 1215  
1216 1216   [[image:1654593712276-618.png]]
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1231 1231  == 8.1  AT Commands input doesn’t work ==
1232 1232  
1233 1233  
1234 -(((
1235 1235  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.
1236 -)))
1237 1237  
1238 1238  
1239 1239  == 8.2  Significant error between the output distant value of LiDAR and actual distance ==
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