Last modified by Mengting Qiu on 2024/03/07 08:41
<
From version < 136.1 >
edited by Xiaoling
on 2022/06/10 16:50
To version < 145.1 >
edited by Xiaoling
on 2022/06/10 17:29
>
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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.
... ... @@ -280,7 +280,7 @@
280 280  
281 281  == 2.4  Uplink Interval ==
282 282  
283 -The LLDS12 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
295 +The LDDS75 by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H4.1ChangeUplinkInterval"]]
284 284  
285 285  
286 286  
... ... @@ -311,47 +311,25 @@
311 311  
312 312  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
313 313  
314 -(% style="color:blue" %)**Step 4**(%%)**: Create LLDS12 product.**
326 +(% style="color:blue" %)**Step 4**(%%)**: Search the LDDS75 and add DevEUI.**
315 315  
316 -[[image:1654832691989-514.png]]
328 +[[image:1654851029373-510.png]]
317 317  
318 318  
319 -[[image:1654592833877-762.png]]
331 +After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
320 320  
333 +[[image:image-20220610165129-11.png||height="595" width="1088"]]
321 321  
322 -[[image:1654832740634-933.png]]
323 323  
324 324  
325 -
326 -(((
327 -(% style="color:blue" %)**Step 5**(%%)**: add payload decode**
328 -)))
329 -
330 -(((
331 -
332 -)))
333 -
334 -[[image:1654833065139-942.png]]
335 -
336 -
337 -
338 -[[image:1654833092678-390.png]]
339 -
340 -
341 -
342 -After added, the sensor data arrive TTN, it will also arrive and show in Datacake.
343 -
344 -[[image:1654833163048-332.png]]
345 -
346 -
347 -
348 348  == 2.6  Frequency Plans ==
349 349  
350 350  (((
351 -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.
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.
352 352  )))
353 353  
354 354  
344 +
355 355  === 2.6.1  EU863-870 (EU868) ===
356 356  
357 357  (((
... ... @@ -415,20 +415,51 @@
415 415  === 2.6.2  US902-928(US915) ===
416 416  
417 417  (((
418 -Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
419 -)))
408 +Used in USA, Canada and South America. Default use CHE=2
420 420  
421 -(((
422 -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.
423 -)))
410 +(% style="color:blue" %)**Uplink:**
424 424  
425 -(((
426 -After Join success, the end node will switch to the correct sub band by:
427 -)))
412 +903.9 - SF7BW125 to SF10BW125
428 428  
429 -* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
430 -* 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)
414 +904.1 - SF7BW125 to SF10BW125
431 431  
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 +
451 +)))
452 +
432 432  === 2.6.3  CN470-510 (CN470) ===
433 433  
434 434  (((
... ... @@ -517,28 +517,54 @@
517 517  
518 518  
519 519  
520 -
521 521  === 2.6.4  AU915-928(AU915) ===
522 522  
523 523  (((
524 -Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
525 -)))
544 +Default use CHE=2
526 526  
527 -(((
528 -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.
529 -)))
546 +(% style="color:blue" %)**Uplink:**
530 530  
531 -(((
532 -
533 -)))
548 +916.8 - SF7BW125 to SF12BW125
534 534  
535 -(((
536 -After Join success, the end node will switch to the correct sub band by:
537 -)))
550 +917.0 - SF7BW125 to SF12BW125
538 538  
539 -* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
540 -* 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
541 541  
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 +
542 542  === 2.6.5  AS920-923 & AS923-925 (AS923) ===
543 543  
544 544  (((
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647 647  
648 648  
649 649  
650 -
651 651  === 2.6.6  KR920-923 (KR920) ===
652 652  
653 653  (((
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720 720  
721 721  
722 722  
723 -
724 724  === 2.6.7  IN865-867 (IN865) ===
725 725  
726 726  (((
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757 757  
758 758  
759 759  
760 -
761 761  == 2.7  LED Indicator ==
762 762  
763 -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.
764 764  
765 -* 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.
766 766  * Blink once when device transmit a packet.
767 767  
815 +
816 +
768 768  == 2.8  ​Firmware Change Log ==
769 769  
770 770  
771 -**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/]]
772 772  
773 773  
774 774  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
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775 775  
776 776  
777 777  
778 -= 3.  LiDAR ToF Measurement =
827 +== 2.9  Mechanical ==
779 779  
780 -== 3.1 Principle of Distance Measurement ==
781 781  
782 -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]]
783 783  
784 -[[image:1654831757579-263.png]]
832 +[[image:image-20220610172003-2.png]]
785 785  
786 786  
835 +== 2.10  Battery Analysis  ==
787 787  
788 -== 3.2 Distance Measurement Characteristics ==
837 +=== 2.10.1  Battery Type ===
789 789  
790 -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.
791 791  
792 -[[image:1654831774373-275.png]]
793 793  
842 +The battery related documents as below:
794 794  
795 -(((
796 -(% 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]],
797 797  )))
798 -
799 -(((
800 -(% 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]],
801 801  )))
802 -
803 -(((
804 -(% 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]]
805 805  )))
806 806  
854 + [[image:image-20220610172400-3.png]]
807 807  
808 -(((
809 -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:
810 -)))
811 811  
812 812  
813 -[[image:1654831797521-720.png]]
858 +=== 2.10.2  Replace the battery ===
814 814  
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 +)))
815 815  
816 816  (((
817 -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 +
818 818  )))
819 819  
820 -[[image:1654831810009-716.png]]
821 -
822 -
823 823  (((
824 -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)
825 825  )))
826 826  
827 827  
828 828  
829 -== 3.3 Notice of usage: ==
874 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
830 830  
831 -Possible invalid /wrong reading for LiDAR ToF tech:
832 -
833 -* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
834 -* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
835 -* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
836 -* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
837 -
838 -= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
839 -
840 840  (((
841 841  (((
842 842  Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
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