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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 94.1
edited by Saxer Lin
on 2023/08/05 14:43
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To version 113.4
edited by Xiaoling
on 2023/11/10 09:32
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Summary

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Title
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1 -LDS12-LB -- LoRaWAN LiDAR ToF Distance Sensor User Manual
1 +DS20L -- LoRaWAN Smart Distance Detector User Manual
Author
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1 -XWiki.Saxer
1 +XWiki.Xiaoling
Content
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1 1  (% style="text-align:center" %)
2 -[[image:image-20230614153353-1.png]]
2 +[[image:image-20231110085342-2.png||height="481" width="481"]]
3 3  
4 4  
5 5  
... ... @@ -7,6 +7,7 @@
7 7  
8 8  
9 9  
10 +
10 10  **Table of Contents：**
11 11  
12 12  {{toc/}}
... ... @@ -18,43 +18,36 @@
18 18  
19 19  = 1. Introduction =
20 20  
21 -== 1.1 What is LoRaWAN LiDAR ToF Distance Sensor ==
22 +== 1.1 What is LoRaWAN Smart Distance Detector ==
22 22  
23 23  
24 -The Dragino LDS12-LB is a (% style="color:blue" %)**LoRaWAN LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable to measure the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)!. The LiDAR probe uses laser induction technology for distance measurement.
25 +The Dragino (% style="color:blue" %)**DS20L is a smart distance detector**(%%) base on long-range wireless LoRaWAN technology. It uses (% style="color:blue" %)**LiDAR sensor**(%%) to detect the distance between DS20L and object, then DS20L will send the distance data to the IoT Platform via LoRaWAN.
25 25  
26 -The LDS12-LB can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
27 +DS20L allows users to send data and reach extremely long ranges via LoRaWAN. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current 
28 +consumption. It targets professional wireless sensor network applications such smart cities, building automation, and so on.
27 27  
28 -It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
30 +DS20L has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) for long-term use up to several years*. Users can also power DS20L with an external power source for (% style="color:blue" %)**continuous measuring and distance alarm / counting purposes.**
29 29  
30 -The LoRa wireless technology used in LDS12-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 +DS20L is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
31 31  
32 -LDS12-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
34 +DS20L supports (% style="color:blue" %)**Datalog feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
33 33  
34 -LDS12-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
36 +[[image:image-20231110091506-4.png||height="391" width="768"]]
35 35  
36 -Each LDS12-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.
37 37  
38 -[[image:image-20230615152941-1.png||height="459" width="800"]]
39 -
40 -
41 41  == 1.2 ​Features ==
42 42  
43 43  
44 -* LoRaWAN 1.0.3 Class A
45 -* Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
46 -* Ultra-low power consumption
47 -* Laser technology for distance detection
48 -* Measure Distance: 0.1m~~12m @ 90% Reflectivity
49 -* Accuracy :  ±5cm@(0.1-6m), ±1%@(6m-12m)
50 -* Monitor Battery Level
51 -* Support Bluetooth v5.1 and LoRaWAN remote configure
52 -* Support wireless OTA update firmware
42 +* LoRaWAN Class A protocol
43 +* LiDAR distance detector, range 3 ~~ 200cm
44 +* Periodically detect or continuously detect mode
53 53  * AT Commands to change parameters
54 -* Downlink to change configure
55 -* 8500mAh Battery for long term use
46 +* Remotely configure parameters via LoRaWAN Downlink
47 +* Alarm & Counting mode
48 +* Datalog Feature
49 +* Firmware upgradable via program port or LoRa protocol
50 +* Built-in 2400mAh battery or power by external power source
56 56  
57 -
58 58  == 1.3 Specification ==
59 59  
60 60  
... ... @@ -65,20 +65,10 @@
65 65  
66 66  (% style="color:#037691" %)**Probe Specification:**
67 67  
68 -* Storage temperature：-20℃~~75℃
69 -* Operating temperature : -20℃~~60℃
70 -* Measure Distance:
71 -** 0.1m ~~ 12m @ 90% Reflectivity
72 -** 0.1m ~~ 4m @ 10% Reflectivity
73 -* Accuracy : ±5cm@(0.1-6m), ±1%@(6m-12m)
74 -* Distance resolution : 5mm
75 -* Ambient light immunity : 70klux
76 -* Enclosure rating : IP65
77 -* Light source : LED
78 -* Central wavelength : 850nm
79 -* FOV : 3.6°
80 -* Material of enclosure : ABS+PC
81 -* Wire length : 25cm
62 +* Measure Range: 3cm~~200cm @ 90% reflectivity
63 +* Accuracy: ±2cm @ (3cm~~100cm); ±5% @ (100~~200cm)
64 +* ToF FoV: ±9°, Total 18°
65 +* Light source: VCSEL
82 82  
83 83  (% style="color:#037691" %)**LoRa Spec:**
84 84  
... ... @@ -100,7 +100,6 @@
100 100  * Sleep Mode: 5uA @ 3.3v
101 101  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
102 102  
103 -
104 104  == 1.4 Applications ==
105 105  
106 106  
... ... @@ -112,7 +112,6 @@
112 112  * Automatic control
113 113  * Sewer
114 114  
115 -
116 116  (% style="display:none" %)
117 117  
118 118  == 1.5 Sleep mode and working mode ==
... ... @@ -142,7 +142,6 @@
142 142  )))
143 143  |(% 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.
144 144  
145 -
146 146  == 1.7 BLE connection ==
147 147  
148 148  
... ... @@ -159,8 +159,8 @@
159 159  
160 160  == 1.8 Pin Definitions ==
161 161  
162 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/WL03A-LB_LoRaWAN_None-Position_Rope_Type_Water_Leak_Controller_User_Manual/WebHome/image-20230613144156-1.png?rev=1.1||alt="image-20230613144156-1.png"]]
163 163  
144 +[[image:image-20230805144259-1.png||height="413" width="741"]]
164 164  
165 165  == 1.9 Mechanical ==
166 166  
... ... @@ -196,7 +196,7 @@
196 196  
197 197  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.
198 198  
199 -[[image:image-20230615153004-2.png||height="459" width="800"]](% style="display:none" %)
180 +[[image:image-20231110091447-3.png||height="383" width="752"]](% style="display:none" %)
200 200  
201 201  
202 202  (% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
... ... @@ -316,7 +316,7 @@
316 316  (((
317 317  LDS12-LB will send this uplink **after** Device Status once join the LoRaWAN network successfully. And LDS12-LB will:
318 318  
319 -periodically send this uplink every 20 minutes, this interval [[can be changed>>https://111]].
300 +periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
320 320  
321 321  Uplink Payload totals 11 bytes.
322 322  )))
... ... @@ -383,18 +383,33 @@
383 383  Customers can judge whether they need to adjust the environment based on the signal strength.
384 384  
385 385  
367 +**1) When the sensor detects valid data:**
368 +
369 +[[image:image-20230805155335-1.png||height="145" width="724"]]
370 +
371 +
372 +**2) When the sensor detects invalid data:**
373 +
374 +[[image:image-20230805155428-2.png||height="139" width="726"]]
375 +
376 +
377 +**3) When the sensor is not connected:**
378 +
379 +[[image:image-20230805155515-3.png||height="143" width="725"]]
380 +
381 +
386 386  ==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
387 387  
388 388  
389 389  This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
390 390  
391 -Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]].
387 +Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]] of GPIO_EXTI .
392 392  
393 393  **Example:**
394 394  
395 -0x00: Normal uplink packet.
391 +If byte[0]&0x01=0x00 : Normal uplink packet.
396 396  
397 -0x01: Interrupt Uplink Packet.
393 +If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
398 398  
399 399  
400 400  ==== (% style="color:blue" %)**LiDAR temp**(%%) ====
... ... @@ -420,13 +420,97 @@
420 420  
421 421  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
422 422  |=(% style="width: 161px;background-color:#4F81BD;color:white" %)**Message Type Code**|=(% style="width: 164px;background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 174px;background-color:#4F81BD;color:white" %)**Payload**
423 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]
424 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.ConfigureLDS12-LB"]]
419 +|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
420 +|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
425 425  
422 +[[image:image-20230805150315-4.png||height="233" width="723"]]
426 426  
427 -=== 2.3.3 Decode payload in The Things Network ===
428 428  
425 +=== 2.3.3 Historical measuring distance, FPORT~=3 ===
429 429  
427 +
428 +LDS12-LB stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
429 +
430 +The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
431 +
432 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
433 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
434 +**Size(bytes)**
435 +)))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)1|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD; color: white; width: 85px;" %)**1**|=(% style="background-color: #4F81BD; color: white; width: 85px;" %)4
436 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
437 +Reserve(0xFF)
438 +)))|Distance|Distance signal strength|(% style="width:88px" %)(((
439 +LiDAR temp
440 +)))|(% style="width:85px" %)Unix TimeStamp
441 +
442 +**Interrupt flag & Interrupt level:**
443 +
444 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
445 +|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
446 +**Size(bit)**
447 +)))|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit7**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit6**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**[bit5:bit2]**|=(% style="width: 90px; background-color: #4F81BD; color: white;" %)**bit1**|=(% style="background-color: #4F81BD; color: white; width: 90px;" %)**bit0**
448 +|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)No ACK message|(% style="width:62.5px" %)Poll Message Flag|Reserve|(% style="width:91px" %)Interrupt level|(% style="width:88px" %)(((
449 +Interrupt flag
450 +)))
451 +
452 +* (((
453 +Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, LDS12-LB will send max bytes according to the current DR and Frequency bands.
454 +)))
455 +
456 +For example, in the US915 band, the max payload for different DR is:
457 +
458 +**a) DR0:** max is 11 bytes so one entry of data
459 +
460 +**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
461 +
462 +**c) DR2:** total payload includes 11 entries of data
463 +
464 +**d) DR3:** total payload includes 22 entries of data.
465 +
466 +If LDS12-LB doesn't have any data in the polling time. It will uplink 11 bytes of 0
467 +
468 +
469 +**Downlink:**
470 +
471 +0x31 64 CC 68 0C 64 CC 69 74 05
472 +
473 +[[image:image-20230805144936-2.png||height="113" width="746"]]
474 +
475 +**Uplink:**
476 +
477 +43 FF 0E 10 00 B0 1E 64 CC 68 0C 40 FF 0D DE 00 A8 1E 64 CC 68 29 40 FF 09 92 00 D3 1E 64 CC 68 65 40 FF 02 3A 02 BC 1E 64 CC 68 A1 41 FF 0E 1A 00 A4 1E 64 CC 68 C0 40 FF 0D 2A 00 B8 1E 64 CC 68 E8 40 FF 00 C8 11 6A 1E 64 CC 69 24 40 FF 0E 24 00 AD 1E 64 CC 69 6D
478 +
479 +
480 +**Parsed Value:**
481 +
482 +[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
483 +
484 +
485 +[360,176,30,High,True,2023-08-04 02:53:00],
486 +
487 +[355,168,30,Low,False,2023-08-04 02:53:29],
488 +
489 +[245,211,30,Low,False,2023-08-04 02:54:29],
490 +
491 +[57,700,30,Low,False,2023-08-04 02:55:29],
492 +
493 +[361,164,30,Low,True,2023-08-04 02:56:00],
494 +
495 +[337,184,30,Low,False,2023-08-04 02:56:40],
496 +
497 +[20,4458,30,Low,False,2023-08-04 02:57:40],
498 +
499 +[362,173,30,Low,False,2023-08-04 02:58:53],
500 +
501 +
502 +**History read from serial port：**
503 +
504 +[[image:image-20230805145056-3.png]]
505 +
506 +
507 +=== 2.3.4 Decode payload in The Things Network ===
508 +
509 +
430 430  While using TTN network, you can add the payload format to decode the payload.
431 431  
432 432  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592762713-715.png?rev=1.1||alt="1654592762713-715.png"]]
... ... @@ -619,7 +619,6 @@
619 619  * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
620 620  * The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.
621 621  
622 -
623 623  === 2.7.4  Reflectivity of different objects ===
624 624  
625 625  
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646 646  |(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%
647 647  |(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%
648 648  
649 -
650 650  = 3. Configure LDS12-LB =
651 651  
652 652  == 3.1 Configure Methods ==
... ... @@ -660,7 +660,6 @@
660 660  
661 661  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
662 662  
663 -
664 664  == 3.2 General Commands ==
665 665  
666 666  
... ... @@ -729,9 +729,9 @@
729 729  === 3.3.2 Set Interrupt Mode ===
730 730  
731 731  
732 -Feature, Set Interrupt mode for PA8 of pin.
809 +Feature, Set Interrupt mode for pin of GPIO_EXTI.
733 733  
734 -When AT+INTMOD=0 is set, PA8 is used as a digital input port.
811 +When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
735 735  
736 736  (% style="color:blue" %)**AT Command: AT+INTMOD**
737 737  
... ... @@ -742,7 +742,11 @@
742 742  OK
743 743  the mode is 0 =Disable Interrupt
744 744  )))
745 -|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
822 +|(% style="width:154px" %)(((
823 +AT+INTMOD=2
824 +
825 +(default)
826 +)))|(% style="width:196px" %)(((
746 746  Set Transmit Interval
747 747  0. (Disable Interrupt),
748 748  ~1. (Trigger by rising and falling edge)
... ... @@ -760,10 +760,9 @@
760 760  
761 761  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
762 762  
763 -
764 764  === 3.3.3  Set Power Output Duration ===
765 765  
766 -Control the output duration 3V3 . Before each sampling, device will
846 +Control the output duration 3V3(pin of VBAT_OUT) . Before each sampling, device will
767 767  
768 768  ~1. first enable the power output to external sensor,
769 769  
... ... @@ -779,6 +779,7 @@
779 779  OK
780 780  |(% style="width:154px" %)AT+3V3T=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
781 781  |(% style="width:154px" %)AT+3V3T=0|(% style="width:196px" %)Always turn on the power supply of 3V3 pin.|(% style="width:157px" %)OK
862 +|(% style="width:154px" %)AT+3V3T=65535|(% style="width:196px" %)Always turn off the power supply of 3V3 pin.|(% style="width:157px" %)OK
782 782  
783 783  (% style="color:blue" %)**Downlink Command: 0x07**(%%)
784 784  Format: Command Code (0x07) followed by 3 bytes.
... ... @@ -787,8 +787,8 @@
787 787  
788 788  * Example 1: Downlink Payload: 07 01 00 00  **~-~-->**  AT+3V3T=0
789 789  * Example 2: Downlink Payload: 07 01 01 F4  **~-~-->**  AT+3V3T=500
871 +* Example 3: Downlink Payload: 07 01 FF FF  **~-~-->**  AT+3V3T=65535
790 790  
791 -
792 792  = 4. Battery & Power Consumption =
793 793  
794 794  
... ... @@ -817,7 +817,6 @@
817 817  
818 818  * 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]]**.
819 819  
820 -
821 821  = 6. FAQ =
822 822  
823 823  == 6.1 What is the frequency plan for LDS12-LB? ==
... ... @@ -878,7 +878,6 @@
878 878  
879 879  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
880 880  
881 -
882 882  = 9. ​Packing Info =
883 883  
884 884  
... ... @@ -896,7 +896,6 @@
896 896  
897 897  * Weight / pcs : g
898 898  
899 -
900 900  = 10. Support =
901 901  
902 902  
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