Changes for page LDDS45 - LoRaWAN Distance Detection Sensor User Manual

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

From version < 95.5 >

edited by Xiaoling
on 2022/06/10 11:28

To version < 94.4 >

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

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@@ -912,60 +912,11 @@
  **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 ==
++= 3. Configure LSPH01 via AT Command or LoRaWAN Downlink =
--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:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
--
--
--
--== 3.2  Distance Measurement Characteristics ==
--
--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: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.
--
--②Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
--
--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: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: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.
--
--
--
--== 3.3  Notice of usage: ==
--
--Possible invalid /wrong reading for LiDAR ToF tech:
--
--* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
--* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
--* 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.
++Use can configure LSPH01 via AT Command or LoRaWAN Downlink.
  )))
  * (((
@@ -976,9 +976,7 @@
  )))
  (((
--
--
--There are two kinds of commands to configure LLDS12, they are:
++There are two kinds of commands to configure LSPH01, they are:
  )))
  * (((
@@ -997,7 +997,7 @@
  )))
  (((
--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>>path:/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
++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>>path:/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
  )))
  (((
@@ -1005,16 +1005,16 @@
  )))
  * (((
--(% style="color:#4f81bd" %)** Commands special design for LLDS12**
++(% style="color:#4f81bd" %)** Commands special design for LSPH01**
  )))
  (((
--These commands only valid for LLDS12, as below:
++These commands only valid for LSPH01, as below:
  )))
--== 4.1  Set Transmit Interval Time ==
++== 3.1 Set Transmit Interval Time ==
  Feature: Change LoRaWAN End Node Transmit Interval.
@@ -1046,17 +1046,15 @@
  )))
--== 4.2  Set Interrupt Mode ==
++== 3.2 Set Interrupt Mode ==
  Feature, Set Interrupt mode for GPIO_EXIT.
  (% style="color:#037691" %)**AT Command: AT+INTMOD**
--[[image:image-20220610105806-2.png]]
++[[image:image-20220607171716-9.png]]
--
--
  (((
  (% style="color:#037691" %)**Downlink Command: 0x06**
  )))
@@ -1076,10 +1076,20 @@
  Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
  )))
++(((
++
++)))
--== 4.3  Get Firmware Version Info ==
++== 3.3 Calibrate Sensor ==
++
++Detail See [[Calibration Guide>>||anchor="H2.7Calibration"]] for the user of 0x13 and 0x14 downlink commands
++
++
++
++== 3.4 Get Firmware Version Info ==
++
  Feature: use downlink to get firmware version.
  (% style="color:#037691" %)**Downlink Command: 0x26**
@@ -1089,7 +1089,6 @@
  * 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:
@@ -1111,7 +1111,7 @@
  Always 0x02
  )))
--**Software Type**: Always 0x03 for LLDS12
++**Software Type**: Always 0x03 for LSPH01
  **Frequency Band**:
@@ -1157,16 +1157,16 @@
 x06: LSNPK01
--0x07: LLDS12
++0x07: LDDS12
--= 5.  Battery & How to replace =
++= 4. Battery & How to replace =
--== 5.1  Battery Type ==
++== 4.1 Battery Type ==
  (((
--LLDS12 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
++LSPH01 is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is un-rechargeable battery with low discharge rate targeting for 8~~10 years use. This type of battery is commonly used in IoT target for long-term running, such as water meter.
  )))
  (((
@@ -1176,13 +1176,13 @@
  [[image:1654593587246-335.png]]
--Minimum Working Voltage for the LLDS12:
++Minimum Working Voltage for the LSPH01:
--LLDS12:  2.45v ~~ 3.6v
++LSPH01:  2.45v ~~ 3.6v
--== 5.2  Replace Battery ==
++== 4.2 Replace Battery ==
  (((
  Any battery with range 2.45 ~~ 3.6v can be a replacement. We recommend to use Li-SOCl2 Battery.
@@ -1194,7 +1194,7 @@
--== 5.3  Power Consumption Analyze ==
++== 4.3 Power Consumption Analyze ==
  (((
  Dragino Battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
@@ -1237,7 +1237,7 @@
--=== 5.3.1  Battery Note ===
++=== 4.3.1 Battery Note ===
  (((
  The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
@@ -1245,14 +1245,14 @@
--=== 5.3.2  Replace the battery ===
++=== 4.3.2 Replace the battery ===
  (((
--You can change the battery in the LLDS12.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.
++You can change the battery in the LSPH01.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.
  )))
  (((
--The default battery pack of LLDS12 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 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)
++The default battery pack of LSPH01 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 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)
  )))
@@ -1261,7 +1261,7 @@
  == 6.1  Access AT Commands ==
--LLDS12 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LLDS12 for using AT command, as below.
++LSPH01 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LSPH01 for using AT command, as below.
  [[image:1654593668970-604.png]]

image-20220610105806-2.png

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