Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual

Last modified by Mengting Qiu on 2025/02/26 15:04

From version < 120.3 >

edited by Xiaoling
on 2022/06/10 15:44

To version < 111.25 >

edited by Xiaoling
on 2022/06/10 14:35

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--LDDS75 - LoRaWAN Distance Detection Sensor User Manual
++LLDS12-LoRaWAN LiDAR ToF Distance Sensor User Manual

Content

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  (% style="text-align:center" %)
--[[image:1654846127817-788.png]]
++[[image:image-20220610095606-1.png]]
++
  **Contents:**
++{{toc/}}
@@ -12,33 +12,38 @@
  = 1.  Introduction =
--== 1.1  What is LoRaWAN Distance Detection Sensor ==
++== 1.1  What is LoRaWAN LiDAR ToF Distance Sensor ==
  (((
  (((
--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.
++The Dragino LLDS12 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.
++)))
++(((
++The LLDS12 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.
++)))
--It detects the distance** (% style="color:#4472c4" %) between the measured object and the sensor(%%)**, and uploads the value via wireless to LoRaWAN IoT Server.
++(((
++It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
++)))
++(((
++The LoRa wireless technology used in LLDS12 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.
++)))
--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.
++(((
++LLDS12 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
++)))
--
--LDDS75 is powered by (% style="color:#4472c4" %)** 4000mA or 8500mAh Li-SOCI2 battery**(%%); It is designed for long term use up to 10 years*.
--
--
--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.
--
--
--(% style="color:#4472c4" %) ***** (%%)Actually lifetime depends on network coverage and uplink interval and other factors
++(((
++Each LLDS12 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.
  )))
  )))
--[[image:1654847051249-359.png]]
++[[image:1654826306458-414.png]]
@@ -45,19 +45,17 @@
  == 1.2  Features ==
  * LoRaWAN 1.0.3 Class A
--* Ultra low power consumption
--* Distance Detection by Ultrasonic technology
--* Flat object range 280mm - 7500mm
--* Accuracy: ±(1cm+S*0.3%) (S: Distance)
--* Cable Length : 25cm
++* Ultra-low power consumption
++* Laser technology for distance detection
++* Operating Range - 0.1m~~12m①
++* Accuracy - ±5cm@(0.1-6m), ±1%@(6m-12m)
++* Monitor Battery Level
  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
  * AT Commands to change parameters
  * Uplink on periodically
  * Downlink to change configure
--* IP66 Waterproof Enclosure
--* 4000mAh or 8500mAh Battery for long term use
++* 8500mAh Battery for long term use
--
  == 1.3  Probe Specification ==
  * Storage temperature ：-20℃~~75℃
@@ -463,6 +463,7 @@
  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
  * 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)
++
  === 2.6.3  CN470-510 (CN470) ===
  (((
@@ -573,6 +573,7 @@
  * Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
  * 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)
++
  === 2.6.5  AS920-923 & AS923-925 (AS923) ===
  (((
@@ -826,37 +826,25 @@
  [[image:1654831774373-275.png]]
--(((
--(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
--)))
++①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
--(((
--(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
--)))
++②Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
--(((
--(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
--)))
++③Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
--(((
  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:
--)))
  [[image:1654831797521-720.png]]
--(((
  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.
--)))
  [[image:1654831810009-716.png]]
--(((
  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.
--)))
@@ -869,81 +869,56 @@
  * The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
  * The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
++
  = 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
  (((
--(((
  Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
  )))
--)))
  * (((
--(((
  AT Command Connection: See [[FAQ>>||anchor="H7.A0FAQ"]].
  )))
--)))
  * (((
--(((
  LoRaWAN Downlink instruction for different platforms: [[IoT LoRaWAN Server>>doc:Main.WebHome]]
  )))
--)))
  (((
--(((
--)))
--(((
  There are two kinds of commands to configure LLDS12, they are:
  )))
--)))
  * (((
--(((
  (% style="color:#4f81bd" %)** General Commands**.
  )))
--)))
  (((
--(((
  These commands are to configure:
  )))
--)))
  * (((
--(((
  General system settings like: uplink interval.
  )))
--)))
  * (((
--(((
  LoRaWAN protocol & radio related command.
  )))
--)))
  (((
--(((
  They are same for all Dragino Device which support DLWS-005 LoRaWAN Stack. These commands can be found on the wiki: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
  )))
--)))
  (((
--(((
  )))
--)))
  * (((
--(((
  (% style="color:#4f81bd" %)** Commands special design for LLDS12**
  )))
--)))
  (((
--(((
  These commands only valid for LLDS12, as below:
  )))
--)))
@@ -956,6 +956,7 @@
  [[image:image-20220607171554-8.png]]
++
  (((
  (% style="color:#037691" %)**Downlink Command: 0x01**
  )))
@@ -973,6 +973,9 @@
  )))
  * (((
  Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
++
++
++
  )))
  == 4.2  Set Interrupt Mode ==
@@ -1003,6 +1003,8 @@
  Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
  )))
++
++
  == 4.3  Get Firmware Version Info ==
  Feature: use downlink to get firmware version.
@@ -1199,14 +1199,10 @@
  (((
--(((
  In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LLDS12.
--)))
--(((
  LLDS12 will output system info once power on as below:
  )))
--)))
   [[image:1654593712276-618.png]]
@@ -1218,7 +1218,7 @@
  == 7.1  How to change the LoRa Frequency Bands/Region ==
--You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
++You can follow the instructions for [[how to upgrade image>>||anchor="H2.10200BFirmwareChangeLog"]].
  When downloading the images, choose the required image file for download.
@@ -1227,9 +1227,7 @@
  == 8.1  AT Commands input doesn’t work ==
--(((
  In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
--)))
  == 8.2  Significant error between the output distant value of LiDAR and actual distance ==
@@ -1274,7 +1274,6 @@
  * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
--
  = 10.  Packing Info =
@@ -1289,7 +1289,6 @@
  * Package Size / pcs : cm
  * Weight / pcs : g
--
  = 11.  Support =
  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.

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