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Last modified by Mengting Qiu on 2023/12/14 11:15
From version 155.2
edited by Mengting Qiu
on 2023/12/09 15:56
Change comment: There is no comment for this version
To version 170.1
edited by Edwin Chen
on 2023/12/11 22:50
Change comment: There is no comment for this version

Summary

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1 -XWiki.ting
1 +XWiki.Edwin
Content
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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 +
50 50  == 1.3 Specification ==
51 51  
52 -
53 53  (% style="color:#037691" %)**LiDAR Sensor:**
54 54  
55 55  * Operation Temperature: -40 ~~ 80 °C
... ... @@ -60,12 +60,13 @@
60 60  * ToF FoV: ±9°, Total 18°
61 61  * Light source: VCSEL
62 62  
63 +
63 63  == 1.4 Power Consumption ==
64 64  
65 65  
66 66  (% style="color:#037691" %)**Battery Power Mode:**
67 67  
68 -* Idle: 0.003 mA @ 3.3v
69 +* Idle: 3uA @ 3.3v
69 69  * Max : 360 mA
70 70  
71 71  (% style="color:#037691" %)**Continuously mode**:
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73 73  * Idle: 21 mA @ 3.3v
74 74  * Max : 360 mA
75 75  
77 +
78 +== 1.5 Use Case ==
79 +
80 +(% class="mark" %)**Regular Distance Detect**
81 +
82 +[[image:image-20231211220922-1.png||height="352" width="605"]]
83 +
84 +
85 +(% class="mark" %)**Counting / Alarm**
86 +
87 +[[image:image-20231211221253-2.png]]
88 +
89 +
90 +[[image:image-20231211221436-3.png]]
91 +
92 +
76 76  = 2. Configure DS20L to connect to LoRaWAN network =
77 77  
78 78  == 2.1 How it works ==
... ... @@ -112,12 +112,16 @@
112 112  
113 113  
114 114  
115 -=== Step 2: Activate on DS20L ===
132 +=== Step 2: Activate DS20L ===
116 116  
117 117  [[image:image-20231128133704-1.png||height="189" width="441"]]
118 118  
119 119  Press the button for 5 seconds to activate the DS20L.
120 120  
138 +The switch is switched to (% style="color:blue" %)**E** (%%)and the external power supply is used.
139 +
140 +The switch is switched to (% style="color:blue" %)**I** (%%)and DS20L will be power by the built-in battery.
141 +
121 121  (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
122 122  
123 123  After join success, it will start to upload messages to TTN and you can see the messages in the panel.
... ... @@ -197,7 +197,7 @@
197 197  === 2.3.2 Uplink Payload, FPORT~=2 ===
198 198  
199 199  
200 -==== (% style="color:red" %)**MOD~=1**(%%) ====
221 +==== (% style="color:red" %)**AT+MOD~=1**(%%) ====
201 201  
202 202  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.
203 203  
... ... @@ -245,24 +245,100 @@
245 245  
246 246  Ex1: 0x00: Normal collection distance
247 247  
248 -Ex2 0x0x: Distance collection is wrong
269 +Ex2: 0x0x: Distance collection is wrong
249 249  
250 250  
251 -(% style="color:blue" %)**Interript Count:**
272 +(% style="color:blue" %)**Interrupt Count:**
252 252  
253 253  If payload is:000007D0H: count = 07D0H =2000
254 254  
255 255  
256 256  
257 -==== (% style="color:red" %)**MOD~=2**(%%)** ** ====
278 +==== (% style="color:red" %)**AT+MOD~=2**(%%)** ** ====
258 258  
259 -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.
260 260  
281 +The power consumption of uninterrupted measurement is high, and the device needs to use external power supply.(The switch is switched to E and the external power supply is used.)
282 +
283 +[[image:image-20231128133704-1.png||height="189" width="441"]]
284 +
285 +
286 +* **Set over-limit alarm mode: AT+DOL=3,500,244,**(% style="color:red" %)0(%%)**,120**
287 +
288 +(% class="wikigeneratedid" id="HUninterruptedmeasurement.Whenthedistanceexceedsthelimit2CtheoutputIOissethighandreportsarereportedeveryfiveminutes.Thetimecanbesetandpoweredbyanexternalpowersupply.UplinkPayloadtotals11bytes." %)
289 +Uninterrupted measurement. When the distance exceeds the limit, the output IO high, instant alarm. Uplink Payload totals 9 bytes.
290 +
261 261  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
292 +|(% 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" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**
293 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+Alarm+DO+Limit flag|(% style="width:74px" %)Distance |(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
294 +
295 +[[image:image-20231209171127-3.png||height="374" width="1209"]]
296 +
297 +(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
298 +
299 +(% style="color:red" %)**MOD:**
300 +
301 +**Example: ** (0x60>>6) & 0x3f =1
302 +
303 +**0x01:**  Regularly detect distance and report.
304 +**0x02: ** Uninterrupted measurement (external power supply).
305 +
306 +(% style="color:red" %)**Alarm:**
307 +
308 +When the detection distance exceeds the limit, the alarm flag is set to 1.
309 +
310 +(% style="color:red" %)**DO:**
311 +
312 +When the distance exceeds the set threshold, pull the Do pin high.
313 +
314 +(% style="color:red" %)**Limit flag:**
315 +
316 +Mode for setting threshold: **0~~3**
317 +
318 +**0:** does not use upper and lower limits
319 +
320 +**1:** Use upper and lower limits
321 +
322 +**2:** Less than the upper limit
323 +
324 +**3: **Greater than the lower limit
325 +
326 +
327 +(% style="color:blue" %)**Distance:**
328 +
329 + Actual sampling distance values.
330 +
331 +**Example:**
332 +
333 +**AT+DOL=1,500,244,**(% style="color:red" %)0(%%)**,120  **
334 +
335 +The distance is detected every 120ms.
336 +
337 +When the actual detection value is within the range of [244mm,500mm], the data is uploaded in the normal TDC time.
338 +
339 +When the actual detection value is outside the range of [244mm,500mm], the uplink data will be immediately alerted.
340 +
341 +If payload is: 0708H: distance = 0708H = 1800 mm
342 +
343 +
344 +(% style="color:blue" %)**Upper limit:**
345 +
346 +The upper limit of the threshold cannot exceed 2000mm.
347 +
348 +
349 +(% style="color:blue" %)**Lower limit:**
350 +
351 +The lower limit of the threshold cannot be less than 3mm.
352 +
353 +
354 +* **Set the person or object count mode: AT+DOL=1,500,244,**(% style="color:red" %)1(%%)**,120**
355 +
356 +Continuous measurement, detect and count people or things passing by in distance limit mode. Uplink Payload totals 11 bytes.
357 +
358 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:600px" %)
262 262  |(% 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**
263 -|(% 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
360 +|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+Alarm+Do+Limit flag|(% style="width:176px" %)Distance limit alarm count|(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
264 264  
265 -[[image:image-20231209155616-2.png||height="271" width="1262"]]
362 +[[image:image-20231209173457-5.png||height="277" width="1098"]]
266 266  
267 267  (% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
268 268  
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294 294  **3: **Greater than the lower limit
295 295  
296 296  
394 +(% style="color:blue" %)**Distance limit alarm count:**
395 +
396 +People or objects are collected and counted within a limited distance.
397 +
398 +The detection of a stationary person or object at each sampling time will be repeated three times, and the fourth sampling count will be added by 1.
399 +
400 +**Example:**
401 +
402 +**AT+DOL=1,500,244,**(% style="color:red" %)1(%%)**,120   **
403 +
404 +People or objects passing within the distance range of [244mm,500mm] are detected and counted every 120ms.
405 +
406 +If payload is: 0x56H, interrupt count =0x56H =86
407 +
408 +
297 297  (% style="color:blue" %)**Upper limit:**
298 298  
299 299  The upper limit of the threshold cannot exceed 2000mm.
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325 325  
326 326  
327 327  (((
328 -[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
440 +[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, onhuman-friendlya in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
329 329  )))
330 330  
331 331  
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398 398  == 3.3 Commands special design for DS20L ==
399 399  
400 400  
401 -These commands only valid for DS20L, as below:
513 +Below commands only valid for DS20L, as below:
402 402  
403 403  
404 404  === 3.3.1 Set Transmit Interval Time ===
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484 484  
485 485  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
486 486  
599 +
487 487  === 3.3.3 Set work mode ===
488 488  
489 489  
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505 505  
506 506  * **Example:** 0x0A02  ~/~/  Same as AT+MOD=2
507 507  
621 +
508 508  === 3.3.4 Set threshold and threshold mode ===
509 509  
510 510  
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522 522  )))
523 523  |(% style="width:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)OK
524 524  
525 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
639 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
640 +|=(% style="width: 162px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 155px;background-color:#4F81BD;color:white" %) Parameter
526 526  |(% rowspan="11" style="color:blue; width:120px" %)(((
527 527  
528 528  
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535 535  
536 536  
537 537  
538 -**AT+DOL=5,1800,0,0,400**
653 +**AT+DOL=1,1800,3,0,400**
539 539  )))|(% rowspan="4" style="width:240px" %)(((
540 540  
541 541  
542 542  
543 543  
544 -
545 -
546 546  The first bit sets the limit mode
547 547  )))|(% style="width:150px" %)0: Do not use upper and lower limits
548 548  |(% style="width:251px" %)1: Use upper and lower limits
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568 568  
569 569  * Example 1: Downlink Payload: 070107080064000190  **~-~-->**  AT+MOD=1,1800,100,0,400
570 570  
571 -* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,1800100,0,400
684 +* Example 2: Downlink Payload: 070200000064000190  **~-~-->**  AT+MOD=2,1800,100,0,400
572 572  
573 573  * Example 3: Downlink Payload: 070300000064000190  **~-~-->**  AT+MOD=3,0,100,0,400
574 574  
688 +(% style="color:Red" %)**Note: The over-limit alarm is applied to MOD1 and MOD2.**
689 +
690 +**For example:**
691 +
692 +* **AT+MOD=1**
693 +
694 + **AT+DOL=1,500,244,**(% style="color:blue" %)0(%%)**,300**
695 +
696 +Send data according to the normal TDC time. If the mode limit is exceeded, the alarm flag is set to 1:
697 +
698 +[[image:image-20231211113204-2.png||height="292" width="1093"]]
699 +
700 +* **AT+MOD=2  **
701 +
702 + **AT+DOL=1,500,244,**(% style="color:blue" %)0(%%)**,300**
703 +
704 +If the mode limit is exceeded, the data is immediately uplink and the alarm flag is set to 1:
705 +
706 +[[image:image-20231211114932-3.png||height="277" width="1248"]]
707 +
708 +
709 +
710 +
711 +
575 575  = 4. Battery & Power Consumption =
576 576  
577 577  
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600 600  
601 601  * Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
602 602  
740 +
603 603  = 6. FAQ =
604 604  
605 605  == 6.1 What is the frequency plan for DS20L? ==
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