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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 75.2
edited by Xiaoling
on 2023/06/13 13:38
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To version 79.1
edited by Xiaoling
on 2023/06/13 14:31
Change comment: Uploaded new attachment "image-20230613143125-6.png", version {1}

Summary

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... ... @@ -19,24 +19,26 @@
19 19  
20 20  = 1. Introduction =
21 21  
22 -== 1.1 What is LoRaWAN Distance Detection Sensor ==
22 +== 1.1 What is LoRaWAN Ultrasonic liquid level Sensor ==
23 23  
24 24  
25 -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.
26 26  
27 -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. 
28 28  
29 -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.
30 30  
31 -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.
32 32  
33 -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.
34 34  
35 -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.
36 36  
37 -[[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.
38 38  
39 +[[image:image-20230613140115-3.png||height="453" width="800"]]
39 39  
41 +
40 40  == 1.2 ​Features ==
41 41  
42 42  
... ... @@ -43,10 +43,10 @@
43 43  * LoRaWAN 1.0.3 Class A
44 44  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
45 45  * Ultra-low power consumption
46 -* Distance Detection by Ultrasonic technology
47 -* Flat object range 30mm - 4500mm
48 -* Accuracy: ±(1cm+S*0.3%) (S: Distance)
49 -* Measure Angle: 60°
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)
50 50  * Cable Length : 25cm
51 51  * Support Bluetooth v5.1 and LoRaWAN remote configure
52 52  * Support wireless OTA update firmware
... ... @@ -55,7 +55,6 @@
55 55  * IP66 Waterproof Enclosure
56 56  * 8500mAh Battery for long term use
57 57  
58 -
59 59  == 1.3 Specification ==
60 60  
61 61  
... ... @@ -85,70 +85,162 @@
85 85  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
86 86  
87 87  
88 -== 1.4 Rated environmental conditions ==
89 +== 1.4 Suitable Container & Liquid ==
89 89  
90 90  
91 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
92 -|(% style="background-color:#d9e2f3; color:#0070c0; width:163px" %)**Item**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)(((
93 -**Minimum value**
94 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
95 -**Typical value**
96 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:87px" %)(((
97 -**Maximum value**
98 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Unit**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Remarks**
99 -|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
100 -|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
101 -|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
102 -|(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
103 -
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" %)
104 104  
105 -
106 -)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
107 107  
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 +
108 108  (((
109 -(% 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 +)))
110 110  
111 -(% 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 +)))
112 112  
113 -
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.
114 114  )))
115 115  
116 -== 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 +)))
117 117  
118 118  
119 -(% 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 +)))
120 120  
121 -[[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"]]
122 122  
123 123  
124 -(% 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 +)))
125 125  
126 -[[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"]]
127 127  
151 +(((
152 +(% style="color:red" %)**LED Status:**
153 +)))
128 128  
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 +
129 129  == 1.6 Applications ==
130 130  
131 131  
132 -* Horizontal distance measurement
133 -* Liquid level measurement
134 -* Parking management system
135 -* Object proximity and presence detection
136 -* Intelligent trash can management system
137 -* Robot obstacle avoidance
138 -* Automatic control
139 -* Sewer
140 -* Bottom water level monitoring
220 +* Smart liquid control solution.
141 141  
222 +* Smart liquefied gas solution.
142 142  
143 -== 1.7 Sleep mode and working mode ==
144 144  
225 +== 1.7 Precautions ==
145 145  
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 +
146 146  (% 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.
147 147  
148 148  (% 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.
149 149  
150 150  
151 -== 1.8 Button & LEDs ==
244 +== 1.9 Button & LEDs ==
152 152  
153 153  
154 154  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
... ... @@ -167,10 +167,9 @@
167 167  )))
168 168  |(% 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.
169 169  
263 +== 1.10 BLE connection ==
170 170  
171 -== 1.9 BLE connection ==
172 172  
173 -
174 174  DDS45-LB support BLE remote configure.
175 175  
176 176  
... ... @@ -183,12 +183,12 @@
183 183  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
184 184  
185 185  
186 -== 1.10 Pin Definitions ==
278 +== 1.11 Pin Definitions ==
187 187  
188 188  [[image:image-20230523174230-1.png]]
189 189  
190 190  
191 -== 1.11 Mechanical ==
283 +== 1.12 Mechanical ==
192 192  
193 193  
194 194  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
... ... @@ -205,7 +205,7 @@
205 205  [[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"]]
206 206  
207 207  
208 -= 2. Configure DDS45-LB to connect to LoRaWAN network =
300 += 2. Configure DDS20-LB to connect to LoRaWAN network =
209 209  
210 210  == 2.1 How it works ==
211 211  
... ... @@ -221,7 +221,7 @@
221 221  
222 222  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.
223 223  
224 -[[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" %)
225 225  
226 226  
227 227  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS45-LB.
... ... @@ -316,7 +316,6 @@
316 316  * If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
317 317  * If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
318 318  
319 -
320 320  === 2.3.3  Interrupt Pin ===
321 321  
322 322  
... ... @@ -507,7 +507,6 @@
507 507  
508 508  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
509 509  
510 -
511 511  == 3.2 General Commands ==
512 512  
513 513  
... ... @@ -570,7 +570,6 @@
570 570  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds 
571 571  )))
572 572  
573 -
574 574  === 3.3.2 Set Interrupt Mode ===
575 575  
576 576  
... ... @@ -605,7 +605,6 @@
605 605  
606 606  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
607 607  
608 -
609 609  = 4. Battery & Power Consumption =
610 610  
611 611  
... ... @@ -634,7 +634,6 @@
634 634  
635 635  * Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
636 636  
637 -
638 638  = 6. FAQ =
639 639  
640 640  == 6.1  What is the frequency plan for DDS45-LB? ==
... ... @@ -717,7 +717,6 @@
717 717  
718 718  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
719 719  
720 -
721 721  = 9. ​Packing Info =
722 722  
723 723  
... ... @@ -735,7 +735,6 @@
735 735  
736 736  * Weight / pcs : g
737 737  
738 -
739 739  = 10. Support =
740 740  
741 741  
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