Last modified by Mengting Qiu on 2024/03/07 08:41
<
From version < 138.5 >
edited by Xiaoling
on 2022/06/10 17:04
To version < 147.3 >
edited by Xiaoling
on 2022/06/10 17:36
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -58,7 +58,6 @@
58 58  * 4000mAh or 8500mAh Battery for long term use
59 59  
60 60  
61 -
62 62  == 1.3  Specification ==
63 63  
64 64  === 1.3.1  Rated environmental conditions ===
... ... @@ -73,16 +73,20 @@
73 73  
74 74  === 1.3.2  Effective measurement range Reference beam pattern ===
75 75  
76 -**(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"]]
75 +**(1) The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
77 77  
78 78  
79 79  
80 -**(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"]]
79 +[[image:1654852253176-749.png]]
81 81  
82 -(% style="display:none" %) (%%)
83 83  
82 +**(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.**
84 84  
85 85  
85 +[[image:1654852175653-550.png]](% style="display:none" %) ** **
86 +
87 +
88 +
86 86  == 1.5 ​ Applications ==
87 87  
88 88  * Horizontal distance measurement
... ... @@ -96,7 +96,6 @@
96 96  * Bottom water level monitoring
97 97  
98 98  
99 -
100 100  == 1.6  Pin mapping and power on ==
101 101  
102 102  
... ... @@ -237,6 +237,7 @@
237 237  * If the sensor value is 0x0000, it means system doesn’t detect ultrasonic sensor.
238 238  * If the sensor value lower than 0x0118 (280mm), the sensor value will be invalid. Since v1.1.4, all value lower than 280mm will be set to 0x0014(20mm) which means the value is invalid.
239 239  
242 +
240 240  === 2.3.3  Interrupt Pin ===
241 241  
242 242  This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H4.2A0SetInterruptMode"]] for the hardware and software set up.
... ... @@ -248,6 +248,7 @@
248 248  0x01: Interrupt Uplink Packet.
249 249  
250 250  
254 +
251 251  === 2.3.4  DS18B20 Temperature sensor ===
252 252  
253 253  This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
... ... @@ -531,7 +531,6 @@
531 531  
532 532  
533 533  
534 -
535 535  === 2.6.4  AU915-928(AU915) ===
536 536  
537 537  (((
... ... @@ -688,7 +688,6 @@
688 688  
689 689  
690 690  
691 -
692 692  === 2.6.6  KR920-923 (KR920) ===
693 693  
694 694  (((
... ... @@ -761,7 +761,6 @@
761 761  
762 762  
763 763  
764 -
765 765  === 2.6.7  IN865-867 (IN865) ===
766 766  
767 767  (((
... ... @@ -798,18 +798,21 @@
798 798  
799 799  
800 800  
801 -
802 802  == 2.7  LED Indicator ==
803 803  
804 -The LLDS12 has an internal LED which is to show the status of different state.
804 +The LDDS75 has an internal LED which is to show the status of different state.
805 805  
806 -* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
806 +
807 +* Blink once when device power on.
808 +* The device detects the sensor and flashes 5 times.
809 +* Solid ON for 5 seconds once device successful Join the network.
807 807  * Blink once when device transmit a packet.
808 808  
812 +
809 809  == 2.8  ​Firmware Change Log ==
810 810  
811 811  
812 -**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/]]
816 +**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/]]
813 813  
814 814  
815 815  **Firmware Upgrade Method: **[[Firmware Upgrade Instruction>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome]]
... ... @@ -816,71 +816,58 @@
816 816  
817 817  
818 818  
819 -= 3.  LiDAR ToF Measurement =
823 +== 2.9  Mechanical ==
820 820  
821 -== 3.1 Principle of Distance Measurement ==
822 822  
823 -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.
826 +[[image:image-20220610172003-1.png]]
824 824  
825 -[[image:1654831757579-263.png]]
828 +[[image:image-20220610172003-2.png]]
826 826  
827 827  
831 +== 2.10  Battery Analysis ==
828 828  
829 -== 3.2 Distance Measurement Characteristics ==
833 +=== 2.10.1  Battery Type ===
830 830  
831 -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:
835 +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.
832 832  
833 -[[image:1654831774373-275.png]]
834 834  
838 +The battery related documents as below:
835 835  
836 -(((
837 -(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
840 +* (((
841 +[[ Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
838 838  )))
839 -
840 -(((
841 -(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
843 +* (((
844 +[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
842 842  )))
843 -
844 -(((
845 -(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
846 +* (((
847 +[[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]]
846 846  )))
847 847  
850 + [[image:image-20220610172400-3.png]]
848 848  
849 -(((
850 -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:
851 -)))
852 852  
853 853  
854 -[[image:1654831797521-720.png]]
854 +=== 2.10.2  Replace the battery ===
855 855  
856 +(((
857 +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.
858 +)))
856 856  
857 857  (((
858 -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.
861 +
859 859  )))
860 860  
861 -[[image:1654831810009-716.png]]
862 -
863 -
864 864  (((
865 -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.
865 +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)
866 866  )))
867 867  
868 868  
869 869  
870 -== 3.3 Notice of usage: ==
870 += 3.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
871 871  
872 -Possible invalid /wrong reading for LiDAR ToF tech:
873 -
874 -* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
875 -* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might wrong.
876 -* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
877 -* The sensor window is made by Acrylic. Don’t touch it with alcohol material. This will destroy the sensor window.
878 -
879 -= 4.  Configure LLDS12 via AT Command or LoRaWAN Downlink =
880 -
881 881  (((
882 882  (((
883 -Use can configure LLDS12 via AT Command or LoRaWAN Downlink.
874 +Use can configure LDDS75 via AT Command or LoRaWAN Downlink.
884 884  )))
885 885  )))
886 886  
... ... @@ -901,7 +901,7 @@
901 901  )))
902 902  
903 903  (((
904 -There are two kinds of commands to configure LLDS12, they are:
895 +There are two kinds of commands to configure LDDS75, they are:
905 905  )))
906 906  )))
907 907  
... ... @@ -942,75 +942,68 @@
942 942  
943 943  * (((
944 944  (((
945 -(% style="color:#4f81bd" %)** Commands special design for LLDS12**
936 +(% style="color:#4f81bd" %)** Commands special design for LDDS75**
946 946  )))
947 947  )))
948 948  
949 949  (((
950 950  (((
951 -These commands only valid for LLDS12, as below:
942 +These commands only valid for LDDS75, as below:
952 952  )))
953 953  )))
954 954  
955 955  
956 956  
957 -== 4.1  Set Transmit Interval Time ==
948 +== 3.1  Access AT Commands ==
958 958  
959 -Feature: Change LoRaWAN End Node Transmit Interval.
950 +LDDS75 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LDDS75 for using AT command, as below.
960 960  
961 -(% style="color:#037691" %)**AT Command: AT+TDC**
952 +[[image:image-20220610172924-4.png||height="483" width="988"]]
962 962  
963 -[[image:image-20220607171554-8.png]]
964 964  
955 +Or if you have below board, use below connection:
965 965  
966 -(((
967 -(% style="color:#037691" %)**Downlink Command: 0x01**
968 -)))
969 969  
970 -(((
971 -Format: Command Code (0x01) followed by 3 bytes time value.
972 -)))
958 +[[image:image-20220610172924-5.png]]
973 973  
974 -(((
975 -If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
976 -)))
977 977  
978 -* (((
979 -Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
980 -)))
981 -* (((
982 -Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
983 -)))
961 +In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LDDS75. LDDS75 will output system info once power on as below:
984 984  
985 -== 4.2  Set Interrupt Mode ==
986 986  
987 -Feature, Set Interrupt mode for GPIO_EXIT.
964 + [[image:image-20220610172924-6.png||height="601" width="860"]]
988 988  
989 -(% style="color:#037691" %)**AT Command: AT+INTMOD**
990 990  
991 -[[image:image-20220610105806-2.png]]
992 992  
968 +== 3.2  Set Transmit Interval Time ==
993 993  
994 -(((
995 -(% style="color:#037691" %)**Downlink Command: 0x06**
996 -)))
970 +Feature: Change LoRaWAN End Node Transmit Interval.
997 997  
972 +(% style="color:#037691" %)**AT Command: AT+TDC**
973 +
974 +[[image:image-20220610173409-7.png]]
975 +
976 +
977 +
978 +
998 998  (((
999 -Format: Command Code (0x06) followed by 3 bytes.
980 +(% style="color:#037691" %)**Downlink Command: 0x01**
1000 1000  )))
1001 1001  
1002 1002  (((
1003 -This means that the interrupt mode of the end node is set to 0x000003=3 (rising edge trigger), and the type code is 06.
984 +(((
985 +Format: Command Code (0x01) followed by 3 bytes time value.
986 +
987 +If the downlink payload=0100003C, it means set the END Node’s Transmit Interval to 0x00003C=60(S), while type code is 01.
988 +
989 +* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
990 +* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
1004 1004  )))
1005 1005  
1006 -* (((
1007 -Example 1: Downlink Payload: 06000000 ~/~/ Turn off interrupt mode
993 +
994 +
1008 1008  )))
1009 -* (((
1010 -Example 2: Downlink Payload: 06000003 ~/~/ Set the interrupt mode to rising edge trigger
1011 -)))
1012 1012  
1013 -== 4.3  Get Firmware Version Info ==
997 +== 3.3  Get Firmware Version Info ==
1014 1014  
1015 1015  Feature: use downlink to get firmware version.
1016 1016  
1654852175653-550.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +106.2 KB
Content
1654852253176-749.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +106.6 KB
Content
image-20220610172003-1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +5.9 KB
Content
image-20220610172003-2.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +18.6 KB
Content
image-20220610172400-3.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +370.3 KB
Content
image-20220610172924-4.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +1.5 MB
Content
image-20220610172924-5.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +901.4 KB
Content
image-20220610172924-6.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +68.6 KB
Content
image-20220610173409-7.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +11.8 KB
Content

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0