Last modified by Mengting Qiu on 2024/04/02 17:03
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From version < 83.5 >
edited by Xiaoling
on 2022/12/08 09:52
To version < 83.10 >
edited by Xiaoling
on 2022/12/08 11:32
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16 16  
17 17  (((
18 18  The Dragino NMDS200 is a(% style="color:blue" %)** NB-IoT Microwave Radar distance sensor**(%%). It uses (% style="color:blue" %)**24Ghz Microwave**(%%) to detect the distance between sensor and different objects. Compare vs ultrasonic or Lidar measurement method, Microwave Radar is (% style="color:blue" %)**more reliable for condensation / dusty environment**(%%). It can sense correct distance even there is water or thick dust on top of the sensor.
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19 19  
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20 20  The NMDS200 can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
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21 21  
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22 22  NMDS200 can (% style="color:blue" %)**measure two distances**(%%): the closest object and next object behind the closest one.
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23 23  
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24 24  NMDS200 (% style="color:blue" %)**supports Alarm Feature**(%%), user can set the NMDS200 to uplink data in a short interval when the distance is out of configured range.
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25 25  
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26 26  NarrowBand-Internet of Things (NB-IoT) is a (% style="color:blue" %)**standards-based low power wide area (LPWA) technology**(%%) developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity, and spectrum efficiency, especially in deep coverage.
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27 27  
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28 28  NMDS200 (% style="color:blue" %)**supports different uplink**(%%) methods including (% style="color:blue" %)**TCP, MQTT, UDP, and CoAP**(%%) for different application requirements.
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29 29  
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30 30  NMDS200 is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**,(%%) It is designed for long-term use of up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
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31 31  
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32 32  To use NMDS200, user needs to check if there is NB-IoT coverage in the field and with the Nb-IoT bands that NMDS200 supports. If local operator support it, user needs to get a** (% style="color:blue" %)NB-IoT SIM card(%%)** from the operator and install into NMDS200 to get NB-IoT network connection.
33 33  )))
34 34  
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104 104  Sensor measure direction and angle is as below. When install the sensor, please make sure the sensor direct to object.
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106 106  
107 -[[image:image-20221207170748-1.png]] [[image:image-20221207170748-2.png||height="366" width="672"]]
121 +[[image:image-20221207170748-1.png]] [[image:image-20221207170748-2.png||height="294" width="540"]]
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294 294  Each time the device uploads a data package. The user can use the AT+NOUD command to upload the recorded data.Up to 32 sets of recorded data can be uploaded.
295 295  
296 296  
297 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
298 -|=(% scope="row" style="width: 50px;" %)**Size(bytes)**|(% style="width:50px" %)**8**|(% style="width:20px" %)**2**|(% style="width:20px" %)**2**|(% style="width:65px" %)**1**|(% style="width:25px" %)**1**|(% style="width:50px" %)**1**|(% style="width:90px" %)**2**|(% style="width:100px" %)**2**
299 -|=(% style="width: 93px;" %)**Value**|(% style="width:67px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:40px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:45px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:75px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:54px" %)MOD|(% style="width:62px" %)Exit flag|(% style="width:94px" %) [[Distance 1>>||anchor="H2.4.5A0A0Distance"]] |(% style="width:93px" %) [[Distance  2>>||anchor="H2.4.5A0A0Distance"]]
311 +(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:450px" %)
312 +|=(% scope="row" style="width: 60px;" %)**Size(bytes)**|(% style="width:50px" %)**8**|(% style="width:30px" %)**2**|(% style="width:30px" %)**2**|(% style="width:75px" %)**1**|(% style="width:30px" %)**1**|(% style="width:50px" %)**1**|(% style="width:60px" %)**2**|(% style="width:60px" %)**2**
313 +|=(% style="width: 93px;" %)**Value**|(% style="width:67px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:40px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:45px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:75px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:54px" %)MOD|(% style="width:62px" %)Exit flag|(% style="width:94px" %) [[Distance 1>>||anchor="H2.4.5A0Distance"]] |(% style="width:93px" %) [[Distance 2>>||anchor="H2.4.5A0Distance"]]
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301 -(% border="1.5" style="background-color:#ffffcc; color:green; width:450px" %)
302 -|(% style="width:50px" %)**4**|(% style="width:90px" %)**2**|(% style="width:90px" %)**2**|(% style="width:60px" %)**4**|(% style="width:50px" %)(((
315 +(% border="1" style="background-color:#ffffcc; color:green; width:350px" %)
316 +|(% style="width:60px" %)**4**|(% style="width:60px" %)**2**|(% style="width:60px" %)**2**|(% style="width:60px" %)**4**|(% style="width:100px" %)(((
303 303  **1-32 group**
304 304  )))
305 -|(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.6A0Timestamp"]]| Distance 1 | Distance  2|(% style="width:67px" %)Time stamp|(% style="width:74px" %)...
319 +|(% style="width:98px" %)[[Time stamp>>||anchor="H2.4.6A0Timestamp"]]| Distance 1 | Distance  2|(% style="width:67px" %)Time stamp|(% style="width:98px" %)...
306 306  
307 307  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NMDS200 uplink data.
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334 334  * (% style="color:#037691" %)**Timestamp: **(%%)0x6390453d =1670399293 (Unix Time)
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336 336  
337 -
338 338  == 2.4  Payload Explanation and Sensor Interface ==
339 339  
340 340  === 2.4.1  Device ID ===
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450 450  * For each uplink probe, LED will be on for 500ms.
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452 452  
453 -
454 454  == 2.7  Distance alarm function ==
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456 456  
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468 468  AT+ ALARM2 =200,1500  ~/~/ Alarm when temperature lower than 1500
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470 470  
471 -
472 -
473 473  == 2.8  Set the number of data to be uploaded and the recording time ==
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597 597  
598 598  AT+INTMOD            : Set the trigger interrupt mode
599 599  
600 -AT+5VT  : Set extend the time of 5V power  
610 +AT+5VT  : Set extend the time of 5V power  
601 601  
602 -AT+PRO  : Choose agreement
612 +AT+PRO  : Choose agreement
603 603  
604 -AT+RXDL  : Extend the sending and receiving time
614 +AT+RXDL  : Extend the sending and receiving time
605 605  
606 -AT+SERVADDR  : Server Address
616 +AT+SERVADDR  : Server Address
607 607  
608 608  AT+TR      :  Get or Set record time
609 609  
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611 611  
612 612  AT+CDP     :  Read or Clear cached data
613 613  
614 -AT+DEBUG:  Enable or Disable debug mode
624 +AT+DEBUG:  Enable or Disable debug mode
615 615  
616 616  AT+ALARM1:  Get or Set alarm of distance1
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691 691  
692 692  * NMDS200 NB-IoT Microwave Radar Distance Sensor x 1
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704 +
694 694  = 9.  Support =
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696 696  

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