Last modified by Mengting Qiu on 2024/03/07 08:41
<
From version < 137.3 >
edited by Xiaoling
on 2022/06/10 16:55
To version < 147.1 >
edited by Xiaoling
on 2022/06/10 17:34
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Summary

Details

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Content
... ... @@ -57,6 +57,8 @@
57 57  * IP66 Waterproof Enclosure
58 58  * 4000mAh or 8500mAh Battery for long term use
59 59  
60 +
61 +
60 60  == 1.3  Specification ==
61 61  
62 62  === 1.3.1  Rated environmental conditions ===
... ... @@ -71,15 +71,20 @@
71 71  
72 72  === 1.3.2  Effective measurement range Reference beam pattern ===
73 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"]]
76 +**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
75 75  
76 76  
77 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"]]
80 +[[image:1654852253176-749.png]]
79 79  
80 -(% style="display:none" %) (%%)
81 81  
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.**
82 82  
85 +
86 +[[image:1654852175653-550.png]](% style="display:none" %) ** **
87 +
88 +
89 +
83 83  == 1.5 ​ Applications ==
84 84  
85 85  * Horizontal distance measurement
... ... @@ -92,6 +92,8 @@
92 92  * Sewer
93 93  * Bottom water level monitoring
94 94  
102 +
103 +
95 95  == 1.6  Pin mapping and power on ==
96 96  
97 97  
... ... @@ -98,6 +98,7 @@
98 98  [[image:1654847583902-256.png]]
99 99  
100 100  
110 +
101 101  = 2.  Configure LDDS75 to connect to LoRaWAN network =
102 102  
103 103  == 2.1  How it works ==
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111 111  )))
112 112  
113 113  
124 +
114 114  == 2.2  ​Quick guide to connect to LoRaWAN server (OTAA) ==
115 115  
116 116  (((
... ... @@ -243,6 +243,7 @@
243 243  0x01: Interrupt Uplink Packet.
244 244  
245 245  
257 +
246 246  === 2.3.4  DS18B20 Temperature sensor ===
247 247  
248 248  This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
... ... @@ -329,6 +329,7 @@
329 329  )))
330 330  
331 331  
344 +
332 332  === 2.6.1  EU863-870 (EU868) ===
333 333  
334 334  (((
... ... @@ -525,28 +525,54 @@
525 525  
526 526  
527 527  
528 -
529 529  === 2.6.4  AU915-928(AU915) ===
530 530  
531 531  (((
532 -Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
533 -)))
544 +Default use CHE=2
534 534  
535 -(((
536 -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.
537 -)))
546 +(% style="color:blue" %)**Uplink:**
538 538  
539 -(((
540 -
541 -)))
548 +916.8 - SF7BW125 to SF12BW125
542 542  
543 -(((
544 -After Join success, the end node will switch to the correct sub band by:
545 -)))
550 +917.0 - SF7BW125 to SF12BW125
546 546  
547 -* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
548 -* 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)
552 +917.2 - SF7BW125 to SF12BW125
549 549  
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 +
586 +
587 +)))
588 +
550 550  === 2.6.5  AS920-923 & AS923-925 (AS923) ===
551 551  
552 552  (((
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655 655  
656 656  
657 657  
658 -
659 659  === 2.6.6  KR920-923 (KR920) ===
660 660  
661 661  (((
... ... @@ -728,7 +728,6 @@
728 728  
729 729  
730 730  
731 -
732 732  === 2.6.7  IN865-867 (IN865) ===
733 733  
734 734  (((
... ... @@ -765,18 +765,22 @@
765 765  
766 766  
767 767  
768 -
769 769  == 2.7  LED Indicator ==
770 770  
771 -The LLDS12 has an internal LED which is to show the status of different state.
807 +The LDDS75 has an internal LED which is to show the status of different state.
772 772  
773 -* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
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.
774 774  * Blink once when device transmit a packet.
775 775  
815 +
816 +
776 776  == 2.8  ​Firmware Change Log ==
777 777  
778 778  
779 -**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/]]
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/]]
780 780  
781 781  
782 782  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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783 783  
784 784  
785 785  
786 -= 3.  LiDAR ToF Measurement =
827 +== 2.9  Mechanical ==
787 787  
788 -== 3.1 Principle of Distance Measurement ==
789 789  
790 -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.
830 +[[image:image-20220610172003-1.png]]
791 791  
792 -[[image:1654831757579-263.png]]
832 +[[image:image-20220610172003-2.png]]
793 793  
794 794  
835 +== 2.10  Battery Analysis  ==
795 795  
796 -== 3.2 Distance Measurement Characteristics ==
837 +=== 2.10.1  Battery Type ===
797 797  
798 -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:
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.
799 799  
800 -[[image:1654831774373-275.png]]
801 801  
842 +The battery related documents as below:
802 802  
803 -(((
804 -(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
844 +* (((
845 +[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
805 805  )))
806 -
807 -(((
808 -(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
847 +* (((
848 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
809 809  )))
810 -
811 -(((
812 -(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
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]]
813 813  )))
814 814  
854 + [[image:image-20220610172400-3.png]]
815 815  
816 -(((
817 -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:
818 -)))
819 819  
820 820  
821 -[[image:1654831797521-720.png]]
858 +=== 2.10.2  Replace the battery ===
822 822  
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 +)))
823 823  
824 824  (((
825 -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.
865 +
826 826  )))
827 827  
828 -[[image:1654831810009-716.png]]
829 -
830 -
831 831  (((
832 -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.
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)
833 833  )))
834 834  
835 835  
836 836  
837 -== 3.3 Notice of usage: ==
874 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
838 838  
839 -Possible invalid /wrong reading for LiDAR ToF tech:
840 -
841 -* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
842 -* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
843 -* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
844 -* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
845 -
846 -= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
847 -
848 848  (((
849 849  (((
850 850  Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
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