Last modified by Mengting Qiu on 2024/04/02 17:03
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From version < 78.1 >
edited by Xiaoling
on 2022/12/07 17:38
To version < 70.25 >
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Change comment: Update document after refactoring.

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1 1  (% style="text-align:center" %)
2 -[[image:LMDS200_10.jpg]]
2 +[[image:image-20221117105556-1.png]]
3 3  
4 4  
5 +
6 +
7 +
8 +
9 +
5 5  **Table of Contents：**
6 6  
12 +{{toc/}}
7 7  
8 8  
9 9  
10 10  
17 +
11 11  = 1.  Introduction =
12 12  
13 -== 1.1 ​ What is NMDS200 NB-IoT Microwave Radar Distance Sensor ==
20 +== 1.1 ​ What is NDS03A NB-IoT Open/Close Door Sensor ==
14 14  
15 15  
16 16  (((
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.
24 +The Dragino NDS03A is an (% style="color:blue" %)**Open/Close NB-IoT Door Sensor**(%%). It detects door (% style="color:blue" %)**open/close status**(%%) and (% style="color:blue" %)**uplinks**(%%) to IoT server via NB-IoT network. NDS03A can connect two door sensors. user can see the door status, open duration, open counts in the IoT Server.
25 +)))
18 18  
27 +(((
28 +The NDS03A will send periodically data (% style="color:blue" %)**every 4 hours** (%%)as well as for each door open/close action. It also counts the door open times and calculates the last door open duration. Users can also disable the uplink for each open/close event, instead, NDS03A can count each open event and uplink periodically.
29 +)))
19 19  
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.
31 +(((
32 +NDS03A has a (% style="color:blue" %)**Datalog feature**(%%), it will record the open/close event and the user can retrieve the history from NB-IoT.
33 +)))
21 21  
22 -NMDS200 can (% style="color:blue" %)**measure two distances**(%%): the closest object and next object behind the closest one.
35 +(((
36 +NDS03A has the(% style="color:blue" %)**open alarm feature**(%%), user can set this feature so the device will send an alarm if the door has been open for a certain time.
37 +)))
23 23  
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.
39 +(((
40 +NDS03A is designed for outdoor use. It has a weatherproof enclosure and industrial level battery to work in low to high temperatures.
41 +)))
25 25  
43 +(((
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.
45 +)))
27 27  
28 -NMDS200 (% style="color:blue" %)**supports different uplink**(%%) methods including (% style="color:blue" %)**TCP, MQTT, UDP, and CoAP**(%%) for different application requirements.
47 +(((
48 +NDS03A supports different uplink methods including (% style="color:blue" %)**TCP, MQTT, UDP, and CoAP**(%%) for different application requirements.
49 +)))
29 29  
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)
51 +(((
52 +NDS03A 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)
53 +)))
31 31  
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.
55 +(((
56 +To use NDS03A, user needs to check if there is NB-IoT coverage in the field and with the Nb-IoT bands that NDS03A supports. If local operator support it, user needs to get a (% style="color:blue" %)**NB-IoT SIM card**(%%) from the operator and install into NDS03A to get NB-IoT network connection.
33 33  )))
34 34  
35 35  
... ... @@ -38,9 +38,10 @@
38 38  
39 39  
40 40  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
41 -* Short uplink interval for Distance Alarm
65 +* Open/Close detect
66 +* Open/Close statistics
42 42  * Monitor Battery Level
43 -* Microwave Radar for distance detection
68 +* connect two door sensors
44 44  * Datalog feature
45 45  * Uplink periodically
46 46  * Downlink to change configure
... ... @@ -53,27 +53,22 @@
53 53  
54 54  
55 55  
56 -== 1.3 Radar probe specification ==
81 +== 1.3  Storage & Operation ==
57 57  
58 58  
59 -* Measuring Method: FMCW
60 -* Frequency: 24.000 24.500 GHz
61 -* Measurement output power: 6dBm
62 -* Measure range: 0.5 20m
63 -* Accuracy: ±0.1m
64 -* Resolution: 0.01m
65 -* Horizontal Angel: 78°
66 -* Vertical Angel: 23°
84 +Temperature -40°C to +85°C
67 67  
68 68  
87 +== 1.4  Mechanical ==
69 69  
70 70  
71 -== 1.4  Storage Temperature ==
90 +[[image:image-20221117114937-4.png]]
72 72  
73 73  
74 - -40°C to +85°C
93 +[[image:image-20221117114949-5.png]]
75 75  
76 76  
96 +[[image:image-20221117115010-6.png]]
77 77  
78 78  
79 79  
... ... @@ -80,19 +80,10 @@
80 80  == 1.5 ​ Applications ==
81 81  
82 82  
103 +[[image:image-20221117114842-3.png]]
83 83  
84 -* Horizontal distance measurement
85 -* Liquid level measurement
86 -* Parking management system
87 -* Object proximity and presence detection
88 -* Intelligent trash can management system
89 -* Robot obstacle avoidance
90 -* Automatic control
91 -* Sewer
92 -* Bottom water level monitoring
93 93  
94 94  
95 -
96 96  == 1.6  Specification ==
97 97  
98 98  
... ... @@ -99,7 +99,7 @@
99 99  (% style="color:blue" %)**Common DC Characteristics:**
100 100  
101 101  * Supply Voltage: 2.1v ~~ 3.6v
102 -* Operating Temperature: 0 ~~ 70°C
113 +* Operating Temperature: -40 ~~ 85°C
103 103  
104 104  (% style="color:blue" %)**NB-IoT Spec:**
105 105  
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112 112  
113 113  
114 114  
115 -== 1.7  Installation ==
126 +== 1.7  Pin Definitions and Switch ==
116 116  
117 117  
118 -Sensor measure direction and angle is as below. When install the sensor, please make sure the sensor direct to object.
129 +[[image:image-20221021110429-4.png]]
119 119  
120 120  
121 -[[image:image-20221207170748-1.png]] [[image:image-20221207170748-2.png||height="366" width="672"]]
132 +=== 1.7.1  Pin Definition ===
122 122  
123 123  
135 +The device is pre-configured to connect to a door sensor. The other pins are not used. If user wants to know more about other pins, please refer to the user manual of LSN50v2 at:  [[https:~~/~~/www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0>>https://www.dropbox.com/sh/djkxs7mr17y94mi/AABVlWbM9uzK9OA3mXyAT10Za?dl=0]]
124 124  
125 -== 1.8  Pin Definitions and Switch ==
126 126  
138 +=== 1.7.2  Jumper JP2(Power ON/OFF) ===
127 127  
128 -[[image:1670404362039-351.png]]
129 129  
141 +Power on Device when putting this jumper.
130 130  
131 -= 2.  Use NMDS200 to communicate with IoT Server =
132 132  
144 +=== 1.7.3  BOOT MODE / SW1 ===
145 +
146 +
147 +1)  ISP:  upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. The firmware won't run.
148 +
149 +2)  Flash:  working mode, the device starts to work for NB-IoT connection and sends out console output for further debugging.
150 +
151 +
152 +=== 1.7.4  Reset Button ===
153 +
154 +
155 +Press to reboot the device.
156 +
157 +
158 +=== 1.7.5  LED ===
159 +
160 +
161 +The LED will blink when :
162 +
163 +1.  Boot the device in flash mode
164 +
165 +2.  Send an uplink packet
166 +
167 +
168 +== 1.8  Magnet Distance ==
169 +
170 +
171 +(% style="color:blue" %)**Wood Door:**(%%) 10 ~~ 30mm
172 +
173 +(% style="color:blue" %)**Iron Door:**(%%)**    **30 ~~ 45mm
174 +
175 +
176 += 2.  Use NDS03A to communicate with IoT Server =
177 +
133 133  == 2.1  How it works ==
134 134  
135 135  
136 -The NB-IoT network will forward this value to IoT server via the protocol defined by NMDS200.
181 +In this user case, the NDS03A is installed on the door edge to detect the open/close event and send the status to the NB-IoT server. The NB-IoT network will forward this value to IoT server via the protocol defined by NDS03A.
137 137  
138 -The diagram below shows the working flow in the default firmware of NMDS200:
183 +The diagram below shows the working flow in the default firmware of NDS03A:
139 139  
140 140  [[image:image-20221021110615-5.png]]
141 141  
142 142  
143 -== 2.2 ​ Configure NMDS200 ==
188 +== 2.2 ​ Configure NDS03A ==
144 144  
190 +=== 2.2.1 Test Requirement ===
145 145  
146 -To use NMDS200 in your city, make sure to meet below requirements:
147 147  
193 +To use NDS03A in your city, make sure to meet below requirements:
194 +
148 148  * Your local operator has already distributed an NB-IoT Network.
149 -* The local NB-IoT network used the band that NMDS200 supports.
196 +* The local NB-IoT network used the band that NDS03A supports.
150 150  * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
151 151  
152 -Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NMDS200 will use** (% style="color:red" %)CoAP(120.24.4.116:5683)(%%)** or raw (% style="color:red" %)**UDP(120.24.4.116:5601) **(%%)or (% style="color:red" %)**MQTT(120.24.4.116:1883) **(%%)or (% style="color:red" %)**TCP(120.24.4.116:5600)protocol**(%%) to send data to the test server.
199 +Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NDS03A will use** (% style="color:red" %)CoAP(120.24.4.116:5683)(%%)** or raw (% style="color:red" %)**UDP(120.24.4.116:5601) **(%%)or (% style="color:red" %)**MQTT(120.24.4.116:1883) **(%%)or (% style="color:red" %)**TCP(120.24.4.116:5600)protocol**(%%) to send data to the test server.
153 153  
154 -[[image:image-20221207173300-4.png]]
201 +[[image:image-20221117142300-1.png]]
155 155  
156 156  
157 -=== 2.2.1 Insert NB-IoT SIM card ===
204 +=== 2.2.2 Insert NB-IoT SIM card ===
158 158  
159 159  
160 160  Insert the NB-IoT Card get from your provider.
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366 366  
367 367  * (% style="color:#037691" %)**Timestamp:**(%%) 0x637590df =1668649183 (Unix Time)
368 368  
416 +
417 +
369 369  == 2.4  Payload Explanation and Sensor Interface ==
370 370  
371 371  === 2.4.1  Device ID ===
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482 482  * After NDS03A join NB-IoT network. The LED will be ON for 3 seconds.
483 483  * For each uplink probe, LED will be on for 500ms.
484 484  
534 +
535 +
485 485  == 2.7  Alarm Base on Timeout ==
486 486  
487 487  
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806 806  
807 807  * NDS03A Open/Close Door Sensor x 1
808 808  
860 +
861 +
809 809  = 9.  Support =
810 810  
811 811  
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