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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 120.1
edited by Xiaoling
on 2023/11/28 14:29
Change comment: Uploaded new attachment "1701152946067-561.png", version {1}
To version 124.4
edited by Xiaoling
on 2023/11/28 15:18
Change comment: There is no comment for this version

Summary

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... ... @@ -47,6 +47,8 @@
47 47  * Firmware upgradable via program port or LoRa protocol
48 48  * Built-in 2400mAh battery or power by external power source
49 49  
50 +
51 +
50 50  == 1.3 Specification ==
51 51  
52 52  
... ... @@ -60,6 +60,8 @@
60 60  * ToF FoV: ±9°, Total 18°
61 61  * Light source: VCSEL
62 62  
65 +
66 +
63 63  == 1.4 Power Consumption ==
64 64  
65 65  
... ... @@ -73,6 +73,8 @@
73 73  * Idle: 21 mA @ 3.3v
74 74  * Max : 360 mA
75 75  
80 +
81 +
76 76  = 2. Configure DS20L to connect to LoRaWAN network =
77 77  
78 78  == 2.1 How it works ==
... ... @@ -206,138 +206,121 @@
206 206  === 2.3.2 Uplink Payload, FPORT~=2 ===
207 207  
208 208  
209 -(((
210 -DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
215 +==== (% style="color:red" %)**MOD~=1**(%%) ====
211 211  
212 -periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
217 +Regularly detect distance and report. When the distance exceeds the limit, the alarm flag is set to 1, and the report can be triggered by external interrupts.
213 213  
214 -Uplink Payload totals 11 bytes.
215 -)))
219 +Uplink Payload totals 10 bytes.
216 216  
217 217  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
218 -|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
219 -**Size(bytes)**
220 -)))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% 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: 80px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**
221 -|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
222 -[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
223 -)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
224 -[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
225 -)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
226 -[[Message Type>>||anchor="HMessageType"]]
227 -)))
222 +|(% style="background-color:#4f81bd; color:white; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:30px" %)**2**|(% style="background-color:#4f81bd; color:white; width:130px" %)**1**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:100px" %)**1**|(% style="background-color:#4f81bd; color:white; width:120px" %)**4**
223 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+ Alarm+Interrupt|(% style="width:74px" %)Distance|(% style="width:100px" %)Sensor State|(% style="width:119px" %)Interrupt Count
228 228  
229 -[[image:image-20230805104104-2.png||height="136" width="754"]]
225 +[[image:1701155076393-719.png]]
230 230  
227 +(% style="color:blue" %)**Battery Info:**
231 231  
232 -==== (% style="color:blue" %)**Battery Info**(%%) ====
229 +Check the battery voltage for DS20L
233 233  
231 +Ex1: 0x0E10 = 3600mV
234 234  
235 -Check the battery voltage for DS20L.
236 236  
237 -Ex1: 0x0B45 = 2885mV
234 +(% style="color:blue" %)**MOD & Alarm & Interrupt:**
238 238  
239 -Ex2: 0x0B49 = 2889mV
236 +(% style="color:red" %)**MOD:**
240 240  
238 +**Example: ** (0x60>>6) & 0x3f =1
241 241  
242 -==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
240 +**0x01:**  Regularly detect distance and report.
241 +**0x02: ** Uninterrupted measurement (external power supply).
243 243  
243 +(% style="color:red" %)**Alarm:**
244 244  
245 -This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
245 +When the detection distance exceeds the limit, the alarm flag is set to 1.
246 246  
247 +(% style="color:red" %)**Interrupt:**
247 247  
248 -**Example**:
249 +Whether it is an external interrupt.
249 249  
250 -If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
251 251  
252 -If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
252 +(% style="color:blue" %)**Distance info:**
253 253  
254 -
255 -==== (% style="color:blue" %)**Distance**(%%) ====
256 -
257 -
258 -Represents the distance value of the measurement output, the default unit is cm, and the value range parsed as a decimal number is 0-1200. In actual use, when the signal strength value Strength.
259 -
260 -
261 261  **Example**:
262 262  
263 -If the data you get from the register is 0x0B 0xEA, the distance between the sensor and the measured object is 0BEA(H) = 3050 (D)/10 = 305cm.
256 +If payload is: 0708H: distance = 0708H = 1800 mm
264 264  
265 265  
266 -==== (% style="color:blue" %)**Distance signal strength**(%%) ====
259 +(% style="color:blue" %)**Sensor State:**
267 267  
261 +Ex1: 0x00: Normal collection distance
268 268  
269 -Refers to the signal strength, the default output value will be between 0-65535. When the distance measurement gear is fixed, the farther the distance measurement is, the lower the signal strength; the lower the target reflectivity, the lower the signal strength. When Strength is greater than 100 and not equal to 65535, the measured value of Dist is considered credible.
263 +Ex2 0x0x: Distance collection is wrong
270 270  
271 271  
272 -**Example**:
266 +(% style="color:blue" %)**Interript Count:**
273 273  
274 -If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
268 +If payload is:000007D0H: count = 07D0H =2000
275 275  
276 -Customers can judge whether they need to adjust the environment based on the signal strength.
277 277  
278 278  
279 -**1) When the sensor detects valid data:**
272 +==== (% style="color:red" %)**MOD~=2**(%%)** ** ====
280 280  
281 -[[image:image-20230805155335-1.png||height="145" width="724"]]
274 +Uninterrupted measurement. When the distance exceeds the limit, the output IO is set high and reports are reported every five minutes. The time can be set and powered by an external power supply.Uplink Payload totals 11bytes.
282 282  
276 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
277 +|(% style="background-color:#4f81bd; color:white; width:70px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:40px" %)**2**|(% style="background-color:#4f81bd; color:white; width:130px" %)**1**|(% style="background-color:#4f81bd; color:white; width:130px" %)**4**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**
278 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+Alarm+Do+Limit flag|(% style="width:74px" %)Distance Limit Alarm count|(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
283 283  
284 -**2) When the sensor detects invalid data:**
280 +[[image:1701155150328-206.png]]
285 285  
286 -[[image:image-20230805155428-2.png||height="139" width="726"]]
282 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
287 287  
284 +(% style="color:red" %)**MOD:**
288 288  
289 -**3) When the sensor is not connected:**
286 +**Example: ** (0x60>>6) & 0x3f =1
290 290  
291 -[[image:image-20230805155515-3.png||height="143" width="725"]]
288 +**0x01:**  Regularly detect distance and report.
289 +**0x02: ** Uninterrupted measurement (external power supply).
292 292  
291 +(% style="color:red" %)**Alarm:**
293 293  
294 -==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
293 +When the detection distance exceeds the limit, the alarm flag is set to 1.
295 295  
295 +(% style="color:red" %)**Do:**
296 296  
297 -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.
297 +When the distance exceeds the set threshold, pull the Do pin high.
298 298  
299 -Note: The Internet Pin is a separate pin in the screw terminal. See pin mapping of GPIO_EXTI .
299 +(% style="color:red" %)**Limit flag:**
300 300  
301 -**Example:**
301 +Mode for setting threshold: 0~~5
302 302  
303 -If byte[0]&0x01=0x00 : Normal uplink packet.
303 +0: does not use upper and lower limits
304 304  
305 -If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
305 +1: Use upper and lower limits
306 306  
307 +2: is less than the lower limit value
307 307  
308 -==== (% style="color:blue" %)**LiDAR temp**(%%) ====
309 +3: is greater than the lower limit value
309 309  
311 +4: is less than the upper limit
310 310  
311 -Characterize the internal temperature value of the sensor.
313 +5: is greater than the upper limit
312 312  
313 -**Example: **
314 -If payload is: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
315 -If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
316 316  
316 +(% style="color:blue" %)**Upper limit:**
317 317  
318 -==== (% style="color:blue" %)**Message Type**(%%) ====
318 +The upper limit of the threshold cannot exceed 2000mm.
319 319  
320 320  
321 -(((
322 -For a normal uplink payload, the message type is always 0x01.
323 -)))
321 +(% style="color:blue" %)**Lower limit:**
324 324  
325 -(((
326 -Valid Message Type:
327 -)))
323 +The lower limit of the threshold cannot be less than 3mm.
328 328  
329 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
330 -|=(% 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**
331 -|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload
332 -|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
333 333  
334 -[[image:image-20230805150315-4.png||height="233" width="723"]]
335 -
336 -
337 337  === 2.3.3 Historical measuring distance, FPORT~=3 ===
338 338  
339 339  
340 -DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
329 +DS20L stores sensor values and users can retrieve these history values via the downlink command.
341 341  
342 342  The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
343 343  
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465 465  
466 466  After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
467 467  
468 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
457 +[[image:1701152946067-561.png]]
469 469  
470 470  
471 471  == 2.5 Frequency Plans ==
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549 549  )))
550 550  * (((
551 551  Example 2: Downlink Payload: 0100003C  ~/~/ Set Transmit Interval (TDC) = 60 seconds
541 +
542 +
543 +
552 552  )))
553 553  
554 554  === 3.3.2 Set Interrupt Mode ===
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589 589  
590 590  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
591 591  
592 -
593 593  == 3.3.3 Set work mode ==
594 594  
595 595  
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628 628  )))
629 629  |(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
630 630  
631 -
632 -
633 633  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
634 634  |(% rowspan="11" style="color:blue; width:120px" %)**AT+DOL=5,1800,0,0,400**|(% rowspan="6" style="width:240px" %)The first bit sets the limit mode|(% style="width:150px" %)0: Do not use upper and lower limits
635 635  |(% style="width:251px" %)1: Use upper and lower limits
... ... @@ -655,8 +655,16 @@
655 655  
656 656  * Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
657 657  
647 +* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,0,100,0,400
658 658  
649 +* Example 3: Downlink Payload: 0703200000064000190  **~-~-->**  AT+MOD=3,1800,100,0,400
659 659  
651 +* Example 4: Downlink Payload: 070407080000000190  **~-~-->**  AT+MOD=4,0,100,0,400
652 +
653 +* Example 5: Downlink Payload: 070507080000000190  **~-~-->**  AT+MOD=5,1800,100,0,400
654 +
655 +
656 +
660 660  = 4. Battery & Power Consumption =
661 661  
662 662  
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693 693  DS20L use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
694 694  
695 695  
693 +== 6.2 DS20L programming line ==
694 +
695 +
696 +缺图 后续补上
697 +
698 +feature:
699 +
700 +for AT commands
701 +
702 +Update the firmware of DS20L
703 +
704 +Support interrupt mode
705 +
706 +
707 +== 6.3 LiDAR probe position ==
708 +
709 +
710 +[[image:1701155390576-216.png||height="285" width="307"]]
711 +
712 +The black oval hole in the picture is the LiDAR probe.
713 +
714 +
715 +== 6.4 Interface definition ==
716 +
717 +[[image:image-20231128151132-2.png||height="305" width="557"]]
718 +
719 +
696 696  = 7. Trouble Shooting =
697 697  
698 698  == 7.1 AT Command input doesn't work ==
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