Last modified by Mengting Qiu on 2024/04/02 17:03
<
From version < 83.4 >
edited by Xiaoling
on 2022/12/08 09:47
To version < 83.10 >
edited by Xiaoling
on 2022/12/08 11:32
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Summary

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Content
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4 4  
5 5  **Table of Contents：**
6 6  
7 +{{toc/}}
7 7  
8 8  
9 9  
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15 15  
16 16  (((
17 17  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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18 18  
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19 19  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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20 20  
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21 21  NMDS200 can (% style="color:blue" %)**measure two distances**(%%): the closest object and next object behind the closest one.
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22 22  
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23 23  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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24 24  
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25 25  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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26 26  
37 +(((
27 27  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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28 28  
41 +(((
29 29  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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30 30  
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31 31  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.
32 32  )))
33 33  
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103 103  Sensor measure direction and angle is as below. When install the sensor, please make sure the sensor direct to object.
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105 105  
106 -[[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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108 108  
109 109  
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293 293  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.
294 294  
295 295  
296 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
297 -|=(% 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**
298 -|=(% 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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300 -(% border="1.5" style="background-color:#ffffcc; color:green; width:450px" %)
301 -|(% 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" %)(((
302 302  **1-32 group**
303 303  )))
304 -|(% 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" %)...
305 305  
306 306  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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333 333  * (% style="color:#037691" %)**Timestamp: **(%%)0x6390453d =1670399293 (Unix Time)
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335 335  
336 -
337 337  == 2.4  Payload Explanation and Sensor Interface ==
338 338  
339 339  === 2.4.1  Device ID ===
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449 449  * For each uplink probe, LED will be on for 500ms.
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451 451  
452 -
453 453  == 2.7  Distance alarm function ==
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455 455  
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467 467  AT+ ALARM2 =200,1500  ~/~/ Alarm when temperature lower than 1500
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469 469  
470 -
471 -
472 472  == 2.8  Set the number of data to be uploaded and the recording time ==
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474 474  
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596 596  
597 597  AT+INTMOD            : Set the trigger interrupt mode
598 598  
599 -AT+5VT  : Set extend the time of 5V power  
610 +AT+5VT  : Set extend the time of 5V power  
600 600  
601 -AT+PRO  : Choose agreement
612 +AT+PRO  : Choose agreement
602 602  
603 -AT+RXDL  : Extend the sending and receiving time
614 +AT+RXDL  : Extend the sending and receiving time
604 604  
605 -AT+SERVADDR  : Server Address
616 +AT+SERVADDR  : Server Address
606 606  
607 607  AT+TR      :  Get or Set record time
608 608  
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610 610  
611 611  AT+CDP     :  Read or Clear cached data
612 612  
613 -AT+DEBUG:  Enable or Disable debug mode
624 +AT+DEBUG:  Enable or Disable debug mode
614 614  
615 615  AT+ALARM1:  Get or Set alarm of distance1
616 616  
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690 690  
691 691  * NMDS200 NB-IoT Microwave Radar Distance Sensor x 1
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704 +
693 693  = 9.  Support =
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695 695  

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