Summary

• Page properties (2 modified, 0 added, 0 removed)
• Attachments (0 modified, 4 added, 0 removed)
  • 1655254599445-662.png
  • 1655255122126-327.png
  • image-20220615090910-1.png
  • image-20220615090910-2.png

Details

Page properties

Title

...	...	@@ -1,1 +1,1 @@
1		-LDDS75 - LoRaWAN Distance Detection Sensor User Manual
	1	+LDDS20 - LoRaWAN Ultrasonic Liquid Level Sensor User Manual

Content

...	...	@@ -1,11 +1,10 @@
1	1	(% style="text-align:center" %)
2		-[[image:1654846127817-788.png]]
	2	+[[image:1655254599445-662.png]]
3	3
4		-**Contents:**
5	5
6		-{{toc/}}
7	7
8	8
	7	+**Table of Contents:**
9	9
10	10
11	11
...	...	@@ -12,9 +12,11 @@
12	12
13	13
14	14
	14	+
	15	+
15	15	= 1.  Introduction =
16	16
17		-== 1.1 ​ What is LoRaWAN Distance Detection Sensor ==
	18	+== 1.1 ​ What is LoRaWAN Ultrasonic liquid level Sensor ==
18	18
19	19	(((
20	20
...	...	@@ -21,7 +21,8 @@
21	21
22	22	(((
23	23	(((
24		-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.
	25	+(((
	26	+The Dragino LDDS20 is a (% style="color:#4472c4" %)**LoRaWAN Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:#4472c4" %)**none-contact method **(%%)to measure the height of liquid in a container without opening the container, and send the value via LoRaWAN network to IoT Server
25	25	)))
26	26
27	27	(((
...	...	@@ -29,7 +29,7 @@
29	29	)))
30	30
31	31	(((
32		-It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
	34	+The LDDS20 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 (% style="color:#4472c4" %)**none-contact measurement makes the measurement safety, easier and possible for some strict situation**.
33	33	)))
34	34
35	35	(((
...	...	@@ -37,7 +37,7 @@
37	37	)))
38	38
39	39	(((
40		-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.
	42	+LDDS20 uses ultrasonic sensing technology for distance measurement. LDDS20 is of high accuracy to measure various liquid such as: (% style="color:#4472c4" %)**toxic substances**(%%), (% style="color:#4472c4" %)**strong acids**(%%), (% style="color:#4472c4" %)**strong alkalis**(%%) and (% style="color:#4472c4" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
41	41	)))
42	42
43	43	(((
...	...	@@ -45,7 +45,7 @@
45	45	)))
46	46
47	47	(((
48		-LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
	50	+The LoRa wireless technology used in LDDS20 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.
49	49	)))
50	50
51	51	(((
...	...	@@ -53,7 +53,7 @@
53	53	)))
54	54
55	55	(((
56		-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.
	58	+LDDS20 is powered by (% style="color:#4472c4" %)**8500mA Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
57	57	)))
58	58
59	59	(((
...	...	@@ -61,13 +61,24 @@
61	61	)))
62	62
63	63	(((
	66	+Each LDDS20 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.
	67	+)))
	68	+
	69	+(((
	70	+
	71	+)))
	72	+)))
	73	+
	74	+(((
	75	+(((
64	64	(% style="color:#4472c4" %) * (%%)Actually lifetime depends on network coverage and uplink interval and other factors.
65	65	)))
66	66	)))
67	67	)))
	80	+)))
68	68
69	69
70		-[[image:1654847051249-359.png]]
	83	+[[image:1655255122126-327.png]]
71	71
72	72
73	73
...	...	@@ -75,9 +75,10 @@
75	75
76	76	* LoRaWAN 1.0.3 Class A
77	77	* Ultra low power consumption
78		-* Distance Detection by Ultrasonic technology
79		-* Flat object range 280mm - 7500mm
80		-* Accuracy: ±(1cm+S*0.3%) (S: Distance)
	91	+* Liquid Level Measurement by Ultrasonic technology
	92	+* Measure through container, No need to contact Liquid.
	93	+* Valid level range 20mm - 2000mm
	94	+* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
81	81	* Cable Length : 25cm
82	82	* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
83	83	* AT Commands to change parameters
...	...	@@ -84,40 +84,30 @@
84	84	* Uplink on periodically
85	85	* Downlink to change configure
86	86	* IP66 Waterproof Enclosure
87		-* 4000mAh or 8500mAh Battery for long term use
	101	+* 8500mAh Battery for long term use
88	88
89	89
90		-== 1.3  Specification ==
91	91
92		-=== 1.3.1  Rated environmental conditions ===
	105	+== 1.3  Suitable Container & Liquid ==
93	93
94		-[[image:image-20220610154839-1.png]]
	107	+* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
	108	+* Container shape is regular, and surface is smooth.
	109	+* Container Thickness:
	110	+** Pure metal material.  2~~8mm, best is 3~~5mm
	111	+** Pure non metal material: <10 mm
	112	+* Pure liquid without irregular deposition.
95	95
96		-(((
97		-**Remarks: (1) a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);  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)**
98		-)))
99	99
100	100
	116	+== 1.4  Mechanical ==
101	101
102		-=== 1.3.2  Effective measurement range Reference beam pattern ===
	118	+[[image:image-20220615090910-1.png]]
103	103
104		-**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
105	105
	121	+[[image:image-20220615090910-2.png]]
106	106
107	107
108		-[[image:1654852253176-749.png]]
109	109
110		-
111		-
112		-(((
113		-**(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.**
114		-)))
115		-
116		-
117		-[[image:1654852175653-550.png]](% style="display:none" %) ** **
118		-
119		-
120		-
121	121	== 1.5 ​ Applications ==
122	122
123	123	* Horizontal distance measurement
...	...	@@ -130,8 +130,6 @@
130	130	* Sewer
131	131	* Bottom water level monitoring
132	132
133		-
134		-
135	135	== 1.6  Pin mapping and power on ==
136	136
137	137
...	...	@@ -168,6 +168,8 @@
168	168	)))
169	169
170	170	(((
	173	+
	174	+
171	171	(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
172	172	)))
173	173
...	...	@@ -178,11 +178,19 @@
178	178	[[image:image-20220607170145-1.jpeg]]
179	179
180	180
	185	+(((
181	181	For OTAA registration, we need to set **APP EUI/ APP KEY/ DEV EUI**. Some server might no need to set APP EUI.
	187	+)))
182	182
	189	+(((
183	183	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	191	+)))
184	184
	193	+(((
	194	+
	195	+
185	185	**Add APP EUI in the application**
	197	+)))
186	186
187	187	[[image:image-20220610161353-4.png]]
188	188
...	...	@@ -225,11 +225,15 @@
225	225	== 2.3  ​Uplink Payload ==
226	226
227	227	(((
	240	+(((
228	228	LDDS75 will uplink payload via LoRaWAN with below payload format:
	242	+)))
229	229
	244	+(((
230	230	Uplink payload includes in total 4 bytes.
231	231	Payload for firmware version v1.1.4. . Before v1.1.3, there is on two fields: BAT and Distance
232	232	)))
	248	+)))
233	233
234	234	(((
235	235
...	...	@@ -264,9 +264,13 @@
264	264
265	265	=== 2.3.2  Distance ===
266	266
	283	+(((
267	267	Get the distance. Flat object range 280mm - 7500mm.
	285	+)))
268	268
	287	+(((
269	269	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" %)** 0B05(H) = 2821 (D) = 2821 mm.**
	289	+)))
270	270
271	271
272	272	* If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
...	...	@@ -300,9 +300,13 @@
300	300
301	301	=== 2.3.5  Sensor Flag ===
302	302
	323	+(((
303	303	0x01: Detect Ultrasonic Sensor
	325	+)))
304	304
	327	+(((
305	305	0x00: No Ultrasonic Sensor
	329	+)))
306	306
307	307
308	308
...	...	@@ -315,7 +315,9 @@
315	315
316	316	The payload decoder function for TTN V3 is here:
317	317
	342	+(((
318	318	LDDS75 TTN V3 Payload Decoder: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LDDS75/Payload_Decoder/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Payload_Decoder/]]
	344	+)))
319	319
320	320
321	321
...	...	@@ -844,10 +844,17 @@
844	844	== 2.8  ​Firmware Change Log ==
845	845
846	846
	873	+(((
847	847	**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
	875	+)))
848	848
	877	+(((
	878	+
	879	+)))
849	849
	881	+(((
850	850	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
	883	+)))
851	851
852	852
853	853
...	...	@@ -991,7 +991,9 @@
991	991	[[image:image-20220610172924-5.png]]
992	992
993	993
	1027	+(((
994	994	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:
	1029	+)))
995	995
996	996
997	997	[[image:image-20220610172924-6.png||height="601" width="860"]]
...	...	@@ -1015,16 +1015,19 @@
1015	1015	(((
1016	1016	Format: Command Code (0x01) followed by 3 bytes time value.
1017	1017
	1053	+(((
1018	1018	If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
	1055	+)))
1019	1019
1020	1020	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
1021	1021	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1022	1022	)))
	1060	+)))
1023	1023
1024	1024
1025		-
1026		-)))
1027	1027
	1064	+
	1065	+
1028	1028	== 3.3  Set Interrupt Mode ==
1029	1029
1030	1030	Feature, Set Interrupt mode for GPIO_EXIT.
...	...	@@ -1038,7 +1038,9 @@
1038	1038
1039	1039	Format: Command Code (0x06) followed by 3 bytes.
1040	1040
	1079	+(((
1041	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.
	1081	+)))
1042	1042
1043	1043	* Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
1044	1044	* Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger

1655254599445-662.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+117.0 KB

Content

1655255122126-327.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+101.7 KB

Content

image-20220615090910-1.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+8.3 KB

Content

image-20220615090910-2.png

Author

...	...	@@ -1,0 +1,1 @@
	1	+XWiki.Xiaoling

Size

...	...	@@ -1,0 +1,1 @@
	1	+5.7 KB

Content