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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 73.2
edited by Xiaoling
on 2023/06/13 10:25
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To version 77.4
edited by Xiaoling
on 2023/06/13 14:11
Change comment: There is no comment for this version

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Title
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1 -DDS45-LB -- LoRaWAN Distance Detection Sensor User Manual
1 +DDS20-LB -- LoRaWAN Ultrasonic Liquid Level Sensor User Manual
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230613100900-1.png||height="683" width="683"]]
2 +[[image:image-20230613133716-2.png||height="717" width="717"]]
3 3  
4 4  
5 5  
6 +
7 +
8 +
9 +
10 +
6 6  **Table of Contents：**
7 7  
8 8  {{toc/}}
... ... @@ -14,24 +14,26 @@
14 14  
15 15  = 1. Introduction =
16 16  
17 -== 1.1 What is LoRaWAN Distance Detection Sensor ==
22 +== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
18 18  
19 19  
20 -The Dragino DDS45-LB is a (% style="color:blue" %)** 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:blue" %)** ultrasonic sensing technology**(%%) for (% style="color:blue" %)**distance measurement**(%%), and (% style="color:blue" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The DDS45-LB 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.
25 +The Dragino DDS20-LB is a (% style="color:blue" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:blue" %)**none-contact method **(%%)to measure the (% style="color:blue" %)**height of liquid**(%%) in a container without opening the container, and send the value via LoRaWAN network to IoT Server.
21 21  
22 -It detects the distance(% style="color:blue" %)**  between the measured object and the sensor**(%%), and uploads the value via wireless to LoRaWAN IoT Server.
27 +The DDS20-LB sensor is installed directly below the container to detect the height of the liquid level. User doesn't need to open a hole on the container to be tested. The none-contact measurement makes the measurement safety, easier and possible for some strict situation. 
23 23  
24 -The LoRa wireless technology used in DDS45-LB 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.
29 +DDS20-LB uses (% style="color:blue" %)**ultrasonic sensing technology**(%%) for distance measurement. DDS20-LB is of high accuracy to measure various liquid such as: (% style="color:blue" %)**toxic substances**(%%), (% style="color:blue" %)**strong acids**(%%), (% style="color:blue" %)**strong alkalis**(%%) and (% style="color:blue" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
25 25  
26 -DDS45-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
31 +The LoRa wireless technology used in DDS20-LB 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.
27 27  
28 -DDS45-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
33 +DDS20-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
29 29  
30 -Each DDS45-LB 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.
35 +DDS20-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
31 31  
32 -[[image:image-20230613102459-3.png||height="476" width="855"]]
37 +Each DDS20-LB 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.
33 33  
39 +[[image:image-20230613140115-3.png||height="453" width="800"]]
34 34  
41 +
35 35  == 1.2 ​Features ==
36 36  
37 37  
... ... @@ -38,9 +38,10 @@
38 38  * LoRaWAN 1.0.3 Class A
39 39  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
40 40  * Ultra-low power consumption
41 -* Distance Detection by Ultrasonic technology
42 -* Flat object range 280mm - 7500mm
43 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
48 +* Liquid Level Measurement by Ultrasonic technology
49 +* Measure through container, No need to contact Liquid
50 +* Valid level range 20mm - 2000mm
51 +* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
44 44  * Cable Length : 25cm
45 45  * Support Bluetooth v5.1 and LoRaWAN remote configure
46 46  * Support wireless OTA update firmware
... ... @@ -77,69 +77,163 @@
77 77  * Sleep Mode: 5uA @ 3.3v
78 78  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
79 79  
80 -== 1.4 Rated environmental conditions ==
81 81  
89 +== 1.4 Suitable Container & Liquid ==
82 82  
83 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
84 -|(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
85 -**Minimum value**
86 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
87 -**Typical value**
88 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)(((
89 -**Maximum value**
90 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks**
91 -|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
92 -|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
93 -|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
94 -|(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
95 -
96 96  
97 -
98 -)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
92 +* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
93 +* Container shape is regular, and surface is smooth.
94 +* Container Thickness:
95 +** Pure metal material.  2~~8mm, best is 3~~5mm
96 +** Pure non metal material: <10 mm
97 +* Pure liquid without irregular deposition.(% style="display:none" %)
99 99  
99 +
100 +
101 +== 1.5 Install DDS20-LB ==
102 +
103 +
104 +(% style="color:blue" %)**Step 1**(%%):  Choose the installation point.
105 +
106 +DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
107 +
108 +
109 +[[image:image-20220615091045-3.png]]
110 +
111 +
112 +
100 100  (((
101 -(% style="color:red" %)**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
114 +(% style="color:blue" %)**Step 2**(%%):  Polish the installation point.
115 +)))
102 102  
103 -(% style="color:red" %)** 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)**
117 +(((
118 +For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
119 +)))
104 104  
105 -
121 +[[image:image-20220615092010-11.png]]
122 +
123 +
124 +No polish needed if the container is shine metal surface without paint or non-metal container.
125 +
126 +[[image:image-20220615092044-12.png]]
127 +
128 +
129 +
130 +(((
131 +(% style="color:blue" %)**Step3:   **(%%)Test the installation point.
106 106  )))
107 107  
108 -== 1.5 Effective measurement range Reference beam pattern ==
134 +(((
135 +Power on DDS20-LB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
136 +)))
109 109  
110 110  
111 -(% style="color:blue" %)**1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
139 +(((
140 +It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
141 +)))
112 112  
113 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852253176-749.png?rev=1.1||alt="1654852253176-749.png"]]
143 +[[image:1655256160324-178.png||height="151" width="419"]][[image:image-20220615092327-13.png||height="146" width="260"]]
114 114  
115 115  
116 -(% style="color:blue" %)**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.**
146 +(((
147 +After paste the DDS20-LB well, power on DDS20-LB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
148 +)))
117 117  
118 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1||alt="1654852175653-550.png"]]
119 119  
151 +(((
152 +(% style="color:red" %)**LED Status:**
153 +)))
120 120  
155 +* (((
156 +Onboard LED: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
157 +)))
158 +
159 +* (((
160 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** always ON**(%%): Sensor is power on but doesn't detect liquid. There is problem in installation point.
161 +)))
162 +* (((
163 +(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
164 +)))
165 +
166 +(((
167 +LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
168 +)))
169 +
170 +
171 +(((
172 +(% style="color:red" %)**Note 2:**
173 +)))
174 +
175 +(((
176 +(% style="color:red" %)**Ultrasonic coupling paste** (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
177 +)))
178 +
179 +
180 +(((
181 +(% style="color:blue" %)**Step4:   **(%%)Install use Epoxy ab glue.
182 +)))
183 +
184 +(((
185 +Prepare Eproxy AB glue.
186 +)))
187 +
188 +(((
189 +Put Eproxy AB glue in the sensor and press it hard on the container installation point.
190 +)))
191 +
192 +(((
193 +Reset DDS20-LB and see if the BLUE LED is slowly blinking.
194 +)))
195 +
196 +[[image:image-20220615091045-8.png||height="203" width="341"]] [[image:image-20220615091045-9.png||height="200" width="284"]]
197 +
198 +
199 +(((
200 +(% style="color:red" %)**Note 1:**
201 +)))
202 +
203 +(((
204 +Eproxy AB glue needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
205 +)))
206 +
207 +
208 +(((
209 +(% style="color:red" %)**Note 2:**
210 +)))
211 +
212 +(((
213 +(% style="color:red" %)**Eproxy AB glue**(%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
214 +)))
215 +
216 +
121 121  == 1.6 Applications ==
122 122  
123 123  
124 -* Horizontal distance measurement
125 -* Liquid level measurement
126 -* Parking management system
127 -* Object proximity and presence detection
128 -* Intelligent trash can management system
129 -* Robot obstacle avoidance
130 -* Automatic control
131 -* Sewer
132 -* Bottom water level monitoring
220 +* Smart liquid control solution.
133 133  
134 -== 1.7 Sleep mode and working mode ==
222 +* Smart liquefied gas solution.
135 135  
136 136  
225 +== 1.7 Precautions ==
226 +
227 +
228 +* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
229 +
230 +* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
231 +
232 +* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.(% style="display:none" %)
233 +
234 +
235 +
236 +== 1.8 Sleep mode and working mode ==
237 +
238 +
137 137  (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
138 138  
139 139  (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
140 140  
141 141  
142 -== 1.8 Button & LEDs ==
244 +== 1.9 Button & LEDs ==
143 143  
144 144  
145 145  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
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158 158  )))
159 159  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
160 160  
161 -== 1.9 BLE connection ==
263 +== 1.10 BLE connection ==
162 162  
163 163  
164 164  DDS45-LB support BLE remote configure.
... ... @@ -173,12 +173,12 @@
173 173  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
174 174  
175 175  
176 -== 1.10 Pin Definitions ==
278 +== 1.11 Pin Definitions ==
177 177  
178 178  [[image:image-20230523174230-1.png]]
179 179  
180 180  
181 -== 1.11 Mechanical ==
283 +== 1.12 Mechanical ==
182 182  
183 183  
184 184  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
... ... @@ -192,16 +192,9 @@
192 192  
193 193  (% style="color:blue" %)**Probe Mechanical:**
194 194  
297 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS45%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654915562090-396.png?rev=1.1||alt="1654915562090-396.png"]]
195 195  
196 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-1.png?rev=1.1||alt="image-20220610172003-1.png"]]
197 197  
198 -
199 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-2.png?rev=1.1||alt="image-20220610172003-2.png"]]
200 -
201 -
202 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610172003-2.png?rev=1.1||alt="image-20220610172003-2.png"]]
203 -
204 -
205 205  = 2. Configure DDS45-LB to connect to LoRaWAN network =
206 206  
207 207  == 2.1 How it works ==
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218 218  
219 219  The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
220 220  
221 -[[image:image-20230613102426-2.png||height="476" width="855"]](% style="display:none" %)
316 +[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
222 222  
223 223  
224 224  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
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301 301  
302 302  
303 303  (((
304 -Get the distance. Flat object range 280mm - 7500mm.
399 +Get the distance. Flat object range 30mm - 4500mm.
305 305  )))
306 306  
307 307  (((
308 -For example, if the data you get from the register is 0x0B 0x05, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
403 +For example, if the data you get from the register is **0x0B 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
309 309  
310 -(% style="color:#4472c4" %)**0B05(H) = 2821 (D) = 2821 mm.**
405 +(% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
311 311  )))
312 312  
313 -
314 314  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
315 -* If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. All value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
409 +* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
316 316  
317 317  === 2.3.3  Interrupt Pin ===
318 318  
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563 563  Example 1: Downlink Payload: 0100001E  ~/~/ Set Transmit Interval (TDC) = 30 seconds
564 564  )))
565 565  * (((
566 -Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
567 -
568 -
569 -
660 +Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
570 570  )))
571 571  
572 572  === 3.3.2 Set Interrupt Mode ===
... ... @@ -623,7 +623,7 @@
623 623  
624 624  * Fix bugs.
625 625  
626 -Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/7la95mae0fn03xe/AACtzs-32m22TLb75B-iIr-Qa?dl=0]]**
717 +Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/a5ue0nfrzqy9nz6/AABbvlATosDJKDwBmbirVbMYa?dl=0]]**
627 627  
628 628  Methods to Update Firmware:
629 629  
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