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57	57	* IP66 Waterproof Enclosure
58	58	* 4000mAh or 8500mAh Battery for long term use
59	59
60		-
61		-
62	62	== 1.3  Specification ==
63	63
64	64	=== 1.3.1  Rated environmental conditions ===
...	...	@@ -73,20 +73,15 @@
73	73
74	74	=== 1.3.2  Effective measurement range Reference beam pattern ===
75	75
76		-**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
	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"]]
77	77
78	78
79	79
80		-[[image:1654852253176-749.png]]
	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"]]
81	81
	80	+(% style="display:none" %) (%%)
82	82
83		-**(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.**
84	84
85		-
86		-[[image:1654852175653-550.png]](% style="display:none" %) ** **
87		-
88		-
89		-
90	90	== 1.5 ​ Applications ==
91	91
92	92	* Horizontal distance measurement
...	...	@@ -99,8 +99,6 @@
99	99	* Sewer
100	100	* Bottom water level monitoring
101	101
102		-
103		-
104	104	== 1.6  Pin mapping and power on ==
105	105
106	106
...	...	@@ -107,7 +107,6 @@
107	107	[[image:1654847583902-256.png]]
108	108
109	109
110		-
111	111	= 2.  Configure LDDS75 to connect to LoRaWAN network =
112	112
113	113	== 2.1  How it works ==
...	...	@@ -121,7 +121,6 @@
121	121	)))
122	122
123	123
124		-
125	125	== 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
126	126
127	127	(((
...	...	@@ -254,7 +254,6 @@
254	254	0x01: Interrupt Uplink Packet.
255	255
256	256
257		-
258	258	=== 2.3.4  DS18B20 Temperature sensor ===
259	259
260	260	This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
...	...	@@ -337,11 +337,10 @@
337	337	== 2.6  Frequency Plans ==
338	338
339	339	(((
340		-The LDDS75 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
	328	+The LLDS12 uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
341	341	)))
342	342
343	343
344		-
345	345	=== 2.6.1  EU863-870 (EU868) ===
346	346
347	347	(((
...	...	@@ -405,51 +405,20 @@
405	405	=== 2.6.2  US902-928(US915) ===
406	406
407	407	(((
408		-Used in USA, Canada and South America. Default use CHE=2
	395	+Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
	396	+)))
409	409
410		-(% style="color:blue" %)**Uplink:**
	398	+(((
	399	+To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.
	400	+)))
411	411
412		-903.9 - SF7BW125 to SF10BW125
413		-
414		-904.1 - SF7BW125 to SF10BW125
415		-
416		-904.3 - SF7BW125 to SF10BW125
417		-
418		-904.5 - SF7BW125 to SF10BW125
419		-
420		-904.7 - SF7BW125 to SF10BW125
421		-
422		-904.9 - SF7BW125 to SF10BW125
423		-
424		-905.1 - SF7BW125 to SF10BW125
425		-
426		-905.3 - SF7BW125 to SF10BW125
427		-
428		-
429		-(% style="color:blue" %)**Downlink:**
430		-
431		-923.3 - SF7BW500 to SF12BW500
432		-
433		-923.9 - SF7BW500 to SF12BW500
434		-
435		-924.5 - SF7BW500 to SF12BW500
436		-
437		-925.1 - SF7BW500 to SF12BW500
438		-
439		-925.7 - SF7BW500 to SF12BW500
440		-
441		-926.3 - SF7BW500 to SF12BW500
442		-
443		-926.9 - SF7BW500 to SF12BW500
444		-
445		-927.5 - SF7BW500 to SF12BW500
446		-
447		-923.3 - SF12BW500(RX2 downlink only)
448		-
449		-
450		-
	402	+(((
	403	+After Join success, the end node will switch to the correct sub band by:
451	451	)))
452	452
	406	+* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
	407	+* Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
	408	+
453	453	=== 2.6.3  CN470-510 (CN470) ===
454	454
455	455	(((
...	...	@@ -538,54 +538,28 @@
538	538
539	539
540	540
	497	+
541	541	=== 2.6.4  AU915-928(AU915) ===
542	542
543	543	(((
544		-Default use CHE=2
	501	+Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
	502	+)))
545	545
546		-(% style="color:blue" %)**Uplink:**
	504	+(((
	505	+To make sure the end node supports all sub band by default. In the OTAA Join process, the end node will use frequency 1 from sub-band1, then frequency 1 from sub-band2, then frequency 1 from sub-band3, etc to process the OTAA join.
	506	+)))
547	547
548		-916.8 - SF7BW125 to SF12BW125
549		-
550		-917.0 - SF7BW125 to SF12BW125
551		-
552		-917.2 - SF7BW125 to SF12BW125
553		-
554		-917.4 - SF7BW125 to SF12BW125
555		-
556		-917.6 - SF7BW125 to SF12BW125
557		-
558		-917.8 - SF7BW125 to SF12BW125
559		-
560		-918.0 - SF7BW125 to SF12BW125
561		-
562		-918.2 - SF7BW125 to SF12BW125
563		-
564		-
565		-(% style="color:blue" %)**Downlink:**
566		-
567		-923.3 - SF7BW500 to SF12BW500
568		-
569		-923.9 - SF7BW500 to SF12BW500
570		-
571		-924.5 - SF7BW500 to SF12BW500
572		-
573		-925.1 - SF7BW500 to SF12BW500
574		-
575		-925.7 - SF7BW500 to SF12BW500
576		-
577		-926.3 - SF7BW500 to SF12BW500
578		-
579		-926.9 - SF7BW500 to SF12BW500
580		-
581		-927.5 - SF7BW500 to SF12BW500
582		-
583		-923.3 - SF12BW500(RX2 downlink only)
584		-
585		-
	508	+(((
586	586
587	587	)))
588	588
	512	+(((
	513	+After Join success, the end node will switch to the correct sub band by:
	514	+)))
	515	+
	516	+* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
	517	+* Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
	518	+
589	589	=== 2.6.5  AS920-923 & AS923-925 (AS923) ===
590	590
591	591	(((
...	...	@@ -694,6 +694,7 @@
694	694
695	695
696	696
	627	+
697	697	=== 2.6.6  KR920-923 (KR920) ===
698	698
699	699	(((
...	...	@@ -766,6 +766,7 @@
766	766
767	767
768	768
	700	+
769	769	=== 2.6.7  IN865-867 (IN865) ===
770	770
771	771	(((
...	...	@@ -802,22 +802,18 @@
802	802
803	803
804	804
	737	+
805	805	== 2.7  LED Indicator ==
806	806
807		-The LDDS75 has an internal LED which is to show the status of different state.
	740	+The LLDS12 has an internal LED which is to show the status of different state.
808	808
809		-
810		-* Blink once when device power on.
811		-* The device detects the sensor and flashes 5 times.
812		-* Solid ON for 5 seconds once device successful Join the network.
	742	+* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
813	813	* Blink once when device transmit a packet.
814	814
815		-
816		-
817	817	== 2.8  ​Firmware Change Log ==
818	818
819	819
820		-**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/]]
	748	+**Firmware download link: **[[http:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LLDS12/Firmware/]]
821	821
822	822
823	823	**Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
...	...	@@ -824,55 +824,68 @@
824	824
825	825
826	826
827		-== 2.9  Mechanical ==
	755	+= 3.  LiDAR ToF Measurement =
828	828
	757	+== 3.1 Principle of Distance Measurement ==
829	829
830		-[[image:image-20220610172003-1.png]]
	759	+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.
831	831
832		-[[image:image-20220610172003-2.png]]
	761	+[[image:1654831757579-263.png]]
833	833
834	834
835		-== 2.10  Battery Analysis  ==
836	836
837		-=== 2.10.1  Battery Type ===
	765	+== 3.2 Distance Measurement Characteristics ==
838	838
839		-The LDDS75 battery is a combination of a 4000mAh or 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is non-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
	767	+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:
840	840
	769	+[[image:1654831774373-275.png]]
841	841
842		-The battery related documents as below:
843	843
844		-* (((
845		-[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
	772	+(((
	773	+(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
846	846	)))
847		-* (((
848		-[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
	775	+
	776	+(((
	777	+(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
849	849	)))
850		-* (((
851		-[[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]]
	779	+
	780	+(((
	781	+(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
852	852	)))
853	853
854		- [[image:image-20220610172400-3.png]]
855	855
	785	+(((
	786	+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:
	787	+)))
856	856
857	857
858		-=== 2.10.2  Replace the battery ===
	790	+[[image:1654831797521-720.png]]
859	859
860		-(((
861		-You can change the battery in the LDDS75.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.
862		-)))
863	863
864	864	(((
865		-
	794	+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.
866	866	)))
867	867
	797	+[[image:1654831810009-716.png]]
	798	+
	799	+
868	868	(((
869		-The default battery pack of LDDS75 includes a ER18505 plus super capacitor. If user can’t find this pack locally, they can find ER18505 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)
	801	+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.
870	870	)))
871	871
872	872
873	873
874		-= 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	806	+== 3.3 Notice of usage: ==
875	875
	808	+Possible invalid /wrong reading for LiDAR ToF tech:
	809	+
	810	+* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
	811	+* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
	812	+* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
	813	+* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
	814	+
	815	+= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
	816	+
876	876	(((
877	877	(((
878	878	Use can configure LLDS12 via AT Command or LoRaWAN Downlink.

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