Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual

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

From version < 100.9 >

edited by Xiaoling
on 2022/06/10 11:37

To version < 98.1 >

edited by Xiaoling
on 2022/06/10 11:29

Change comment: Uploaded new attachment "1654831797521-720.png", version {1}

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@@ -485,16 +485,14 @@
  * Reply to the confirmation package: 14 01
  * Reply to non-confirmed packet: 14 00
++== 2.8 Frequency Plans ==
--
--== 2.6  Frequency Plans ==
--
  (((
--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.
++The LSPH01 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.
  )))
--=== 2.6.1  EU863-870 (EU868) ===
++=== 2.8.1 EU863-870 (EU868) ===
  (((
  (% style="color:blue" %)**Uplink:**
@@ -554,7 +554,7 @@
--=== 2.6.2  US902-928(US915) ===
++=== 2.8.2 US902-928(US915) ===
  (((
  Used in USA, Canada and South America. Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
@@ -571,12 +571,8 @@
  * 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)
++=== 2.8.3 CN470-510 (CN470) ===
--
--
--
--=== 2.6.3 CN470-510 (CN470) ===
--
  (((
  Used in China, Default use CHE=1
  )))
@@ -663,9 +663,8 @@
++=== 2.8.4 AU915-928(AU915) ===
--=== 2.6.4 AU915-928(AU915) ===
--
  (((
  Frequency band as per definition in LoRaWAN 1.0.3 Regional document.
  )))
@@ -685,11 +685,8 @@
  * 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)
++=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
--
--
--=== 2.6.5 AS920-923 & AS923-925 (AS923) ===
--
  (((
  (% style="color:blue" %)**Default Uplink channel:**
  )))
@@ -796,9 +796,8 @@
++=== 2.8.6 KR920-923 (KR920) ===
--=== 2.6.6 KR920-923 (KR920) ===
--
  (((
  (% style="color:blue" %)**Default channel:**
  )))
@@ -869,9 +869,8 @@
++=== 2.8.7 IN865-867 (IN865) ===
--=== 2.6.7 IN865-867 (IN865) ===
--
  (((
  (% style="color:blue" %)**Uplink:**
  )))
@@ -906,25 +906,24 @@
++== 2.9 LED Indicator ==
--== 2.7  LED Indicator ==
++The LSPH01 has an internal LED which is to show the status of different state.
--The LLDS12 has an internal LED which is to show the status of different state.
--
  * The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
  * Blink once when device transmit a packet.
++== 2.10 Firmware Change Log ==
--== 2.8  Firmware Change Log ==
++**Firmware download link:**
--**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/]]
++[[http:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/LSPH01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/Firmware/]]
  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>path:/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/]]
--
  = 3.  LiDAR ToF Measurement =
  == 3.1  Principle of Distance Measurement ==
@@ -931,7 +931,7 @@
  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.
--[[image:1654831757579-263.png]]
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
@@ -939,7 +939,7 @@
  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:
--[[image:1654831774373-275.png]]
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]
  ①Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
@@ -952,12 +952,12 @@
  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]]
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image003.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]]
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image004.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.
@@ -973,6 +973,8 @@
  * 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 =
  (((
@@ -1087,6 +1087,8 @@
  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.
@@ -1098,6 +1098,7 @@
  * Reply to the confirmation package: 26 01
  * Reply to non-confirmed packet: 26 00
++
  Device will send an uplink after got this downlink command. With below payload:
  Configures info payload:
@@ -1350,6 +1350,7 @@
  * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
++
  = 10.  Packing Info =
@@ -1364,6 +1364,7 @@
  * 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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