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1.7 | 1 | **~ Contents:** |
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1.2 | 2 | |
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1.1 | 3 | {{toc/}} |
4 | |||
5 | |||
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1.2 | 6 | = 1. Introduction = |
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1.1 | 7 | |
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1.2 | 8 | This article shows how to use [[LBT1>>url:http://www.dragino.com/products/lora-lorawan-end-node/item/165-lbt1.html]] to build an Indoor Positioning Solution. |
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1.1 | 9 | |
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6.2 | 10 | [[image:image-20220526150521-2.png]] |
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1.1 | 11 | |
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1.2 | 12 | LBT1 Indoor Positioning Network Structure |
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1.1 | 13 | |
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6.2 | 14 | |
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1.2 | 15 | = 2. Prepare Map = |
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1.1 | 16 | |
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1.2 | 17 | == 2.1 Prepare iBeacons == |
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1.1 | 18 | |
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1.2 | 19 | ((( |
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1.3 | 20 | ((( |
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1.2 | 21 | Any BLE iBeacons should work in this solution, each iBeacon stands for a fix position in the map. Here is an iBeacon for example. |
22 | ))) | ||
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1.3 | 23 | ))) |
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1.1 | 24 | |
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1.2 | 25 | ((( |
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1.3 | 26 | ((( |
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1.2 | 27 | First of all, user needs to accurately place the beacon at each location, which is the reference for positioning. |
28 | ))) | ||
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1.3 | 29 | ))) |
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1.1 | 30 | |
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1.2 | 31 | ((( |
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1.3 | 32 | ((( |
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1.2 | 33 | BCN01 iBeacon from Dragino: [[http:~~/~~/www.dragino.com/products/accessories/item/166-bcn01.html>>url:http://www.dragino.com/products/accessories/item/166-bcn01.html]] |
34 | ))) | ||
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1.3 | 35 | ))) |
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1.1 | 36 | |
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6.2 | 37 | [[image:image-20220526150651-4.png]] |
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1.1 | 38 | |
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1.2 | 39 | BCN01 iBeacon |
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1.1 | 40 | |
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1.2 | 41 | ((( |
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1.3 | 42 | ((( |
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1.2 | 43 | We need to get the UUID, MAJOR, MINOR, TXPOWER where each iBeacon is placed. We can get it with the iBeacon software, such as "EW-beacon". |
44 | ))) | ||
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1.3 | 45 | ))) |
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1.1 | 46 | |
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1.2 | 47 | [[image:https://wiki.dragino.com/images/thumb/f/fa/Ibeacon2.jpg/400px-Ibeacon2.jpg||height="867" width="400"]] |
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1.1 | 48 | |
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1.2 | 49 | beacon software |
50 | |||
51 | |||
52 | [[image:https://wiki.dragino.com/images/thumb/f/f2/Ibeacon3.jpg/400px-Ibeacon3.jpg||height="867" width="400"]] | ||
53 | |||
54 | beacon software | ||
55 | |||
56 | == 2.2 Create Map == | ||
57 | |||
58 | ((( | ||
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1.3 | 59 | ((( |
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1.2 | 60 | Here we use the indoor map at [[https:~~/~~/studio.mapwize.io/>>url:https://studio.mapwize.io/]]. Below shows the steps for create a map and put the iBeacon on a fix position. |
61 | ))) | ||
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1.3 | 62 | ))) |
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1.2 | 63 | |
64 | ((( | ||
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1.3 | 65 | ((( |
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1.2 | 66 | ~1. Register an account at [[https:~~/~~/studio.mapwize.io/>>url:https://studio.mapwize.io/]] to create an indoor map. |
67 | ))) | ||
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1.3 | 68 | ))) |
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1.2 | 69 | |
70 | ((( | ||
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1.3 | 71 | ((( |
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1.2 | 72 | 2. Create Place Types. |
73 | ))) | ||
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1.3 | 74 | ))) |
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1.2 | 75 | |
76 | [[image:https://wiki.dragino.com/images/thumb/4/4d/Beacon10.png/600px-Beacon10.png||height="274" width="600"]] | ||
77 | |||
78 | Create place types | ||
79 | |||
80 | 3. Search Venues. (Indoor map area identification) | ||
81 | |||
82 | [[image:https://wiki.dragino.com/images/thumb/e/e8/Beacon11.jpg/600px-Beacon11.jpg||alt="Beacon11.jpg" height="324" width="600"]] | ||
83 | |||
84 | ((( | ||
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1.4 | 85 | ((( |
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1.2 | 86 | The map accurately places the beacon of ibeacon, which is the reference for positioning. At this time, UUID, MAJOR and MINOR must be filled in correctly. |
87 | ))) | ||
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1.4 | 88 | ))) |
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1.2 | 89 | |
90 | 4. Upload Floor plan. | ||
91 | |||
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1.8 | 92 | [[image:https://wiki.dragino.com/images/thumb/d/d1/Beacon12.png/800px-Beacon12.png||alt="File:Beacon12.png" height="196" width="598"]] |
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1.2 | 93 | |
94 | add images | ||
95 | |||
96 | 5. Create Layer | ||
97 | |||
98 | [[image:https://wiki.dragino.com/images/thumb/0/0e/Beacon13.png/600px-Beacon13.png||height="208" width="600"]] | ||
99 | |||
100 | create layer | ||
101 | |||
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1.4 | 102 | ((( |
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1.2 | 103 | 6. Add iBeacon position info. Drag the iBeacon to match position and input the UUID, MAJOR and MINOR of this iBeacon. |
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1.4 | 104 | ))) |
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1.2 | 105 | |
106 | [[image:https://wiki.dragino.com/images/thumb/1/1d/Beacon14.png/600px-Beacon14.png||height="261" width="600"]] | ||
107 | |||
108 | create iBeacon | ||
109 | |||
110 | = 3. Configure TTN = | ||
111 | |||
112 | == 3.1 Configure LBT1 to Upload data to TTN == | ||
113 | |||
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2.4 | 114 | Please refer the instruction in the [[User Manual>>url:http://www.dragino.com/downloads/index.php?dir=accessories/Bluetooth/BCN01]]. Note the (% style="color:#4f81bd" %)**LBT1 need to set to MOD=3**(%%) here. |
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1.2 | 115 | |
116 | == 3.2 Decoder in TTN == | ||
117 | |||
118 | (% class="box" %) | ||
119 | ((( | ||
120 | function Decoder(bytes, port) { | ||
121 | \\~/~/ Decode an uplink message from a buffer | ||
122 | \\~/~/ (array) of bytes to an object of fields. | ||
123 | \\value = bytes[0] << 8 | bytes[1]; | ||
124 | \\var batV = value/1000;~/~/Battery,units:V | ||
125 | \\var mode = bytes[5]; | ||
126 | \\~/~/var value=(bytes[3]-0x30)*1000 +(bytes[5]-0x30)*100 + (bytes[5]-0x30)*10 +(bytes[6]-0x30); | ||
127 | \\~/~/var value = bytes.slice(3); | ||
128 | \\var i; | ||
129 | \\var con; | ||
130 | \\var str = ""; | ||
131 | \\var major = 1; | ||
132 | \\var minor = 1; | ||
133 | \\var rssi = 0; | ||
134 | \\var addr = ""; | ||
135 | \\if(mode ==2 ) { | ||
136 | \\ for(i = 38 ; i<50 ; i++) { | ||
137 | \\ con = bytes[i].toString(); | ||
138 | \\ str += String.fromCharCode(con); | ||
139 | \\ } | ||
140 | \\ addr = str; | ||
141 | \\ str = ""; | ||
142 | \\ for(i = 6 ; i<38 ; i++) { | ||
143 | \\ con = bytes[i].toString(); | ||
144 | \\ str += String.fromCharCode(con); | ||
145 | \\ } | ||
146 | \\ value = str; | ||
147 | \\} | ||
148 | \\if(mode == 3 ) { | ||
149 | \\ str = ""; | ||
150 | \\ for(i = 18 ; i < 22 ; i++) { | ||
151 | \\ con = bytes[i].toString(); | ||
152 | \\ str += String.fromCharCode(con); | ||
153 | \\ } | ||
154 | \\ major = parseInt(str, 16); | ||
155 | \\ str = ""; | ||
156 | \\ for(i = 22 ; i < 26 ; i++) { | ||
157 | \\ con = bytes[i].toString(); | ||
158 | \\ str += String.fromCharCode(con); | ||
159 | \\ } | ||
160 | \\ minor = parseInt(str, 16); | ||
161 | \\ str = ""; | ||
162 | \\ for(i = 28 ; i < 32 ; i++) { | ||
163 | \\ con = bytes[i].toString(); | ||
164 | \\ str += String.fromCharCode(con); | ||
165 | \\ } | ||
166 | \\ rssi = parseInt(str); | ||
167 | \\ str = ""; | ||
168 | \\ for(i = 6 ; i < 18 ; i++) { | ||
169 | \\ con = bytes[i].toString(); | ||
170 | \\ str += String.fromCharCode(con); | ||
171 | } | ||
172 | \\ value = str; | ||
173 | } | ||
174 | \\if(mode == 1) { | ||
175 | \\ for(i = 6 ; i<11 ; i++) { | ||
176 | \\ con = bytes[i].toString(); | ||
177 | \\ str += String.fromCharCode(con); | ||
178 | \\ } | ||
179 | \\ value = str; | ||
180 | } | ||
181 | \\var uuid = value; | ||
182 | \\var alarm = bytes[2] >> 4 & 0x0F; | ||
183 | \\var step_count = (bytes[2] & 0x0F) << 16 | bytes[3] << 8 | bytes[4]; | ||
184 | \\return { | ||
185 | UUID: uuid, | ||
186 | ADDR: addr, | ||
187 | MAJOR: major, | ||
188 | MINOR: minor, | ||
189 | RSSI:rssi, | ||
190 | STEP: step_count, | ||
191 | ALARM: alarm, | ||
192 | BatV:batV, | ||
193 | }; | ||
194 | } | ||
195 | |||
196 | ))) | ||
197 | |||
198 | = 4. Set Up Converter Server = | ||
199 | |||
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1.4 | 200 | * ((( |
201 | How to install and run this service on Linux? | ||
202 | ))) | ||
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1.2 | 203 | |
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1.4 | 204 | ((( |
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1.2 | 205 | Step1.Rent a Linux on Amazon cloud or alicloud to the host, and pre install the Linux system (Debian, Ubuntu, CentOS are available for distribution). |
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1.4 | 206 | ))) |
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1.2 | 207 | |
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1.4 | 208 | ((( |
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1.2 | 209 | Step2.Run the code on the server after compiling. Compilation requires the support of libcurl. First, compile libmqtt in the code, and then compile location. |
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1.4 | 210 | ))) |
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1.2 | 211 | |
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1.4 | 212 | ((( |
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1.2 | 213 | System: Debian / Ubuntu |
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1.4 | 214 | ))) |
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1.2 | 215 | |
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1.4 | 216 | (% class="box" %) |
217 | ((( | ||
218 | step: | ||
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1.8 | 219 | \\1. sudo apt install libcurl4-dev |
220 | \\2. sudo apt install gcc automake autoconf libtool make cmake | ||
221 | \\3. git clone -b master https:~/~/github.com/mikayong/location.git | ||
222 | \\4. cd location/libmqtt | ||
223 | \\5. mkdir build | ||
224 | \\6. cd build && cmake ../ | ||
225 | \\7. make && sudo make install | ||
226 | \\8. cd ../ | ||
227 | \\9. make | ||
228 | \\10. sudo cp location_conf.json /etc/ | ||
229 | \\11. Edit the configuration file, and run the location service in the background: ./location & | ||
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1.4 | 230 | ))) |
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1.2 | 231 | |
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1.4 | 232 | ((( |
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1.2 | 233 | Step3.The location service subscribes to the lora information stream on TTN through the mqtt protocol, parses the information to generate a geographic location, and finally creates a geographic location on the mapwize map. The following is the configuration of the location service, the configuration file is in json format, the file is /etc/location_conf.json |
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1.4 | 234 | ))) |
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1.2 | 235 | |
236 | = 5. Configuration file: location_conf.json = | ||
237 | |||
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1.9 | 238 | * ((( |
239 | We use the 120.78.138.177 server as an example. The location service is currently installed on the 120.78.138.177 server, the code is in /root/location, and the configuration file for running location pre-read directly is /etc/location_conf.json. | ||
240 | ))) | ||
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1.2 | 241 | |
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1.9 | 242 | ((( |
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1.2 | 243 | { "location_conf": { |
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1.9 | 244 | ))) |
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1.2 | 245 | |
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1.5 | 246 | (% class="box" %) |
247 | ((( | ||
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1.9 | 248 | ((( |
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1.5 | 249 | "loctype": "indoor", ~/~/ indoor/outdoor |
250 | "locmap": "mapwize" ~/~/ Map interface: mapwize, traccar | ||
251 | ))) | ||
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1.9 | 252 | ))) |
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1.2 | 253 | |
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1.9 | 254 | ((( |
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1.2 | 255 | }, "mqtt_conf": { |
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1.9 | 256 | ))) |
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1.2 | 257 | |
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1.5 | 258 | (% class="box" %) |
259 | ((( | ||
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1.9 | 260 | ((( |
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1.5 | 261 | "servaddr": "[str]", ~/~/ Lorawan server address: Refer to TTN app handler:eu.thethings.network |
262 | "servport": [int], ~/~/ Lorawan server port: 1883 | ||
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1.9 | 263 | "clientid": "[str]", ~/~/ MQTT client identity: Custom |
264 | "qos":[int], ~/~/ (Optional) MQTT service quality: 0 | ||
265 | "username":"[str]", ~/~/ Agent name of mqtt: application ID of TTN | ||
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1.5 | 266 | "password":"[str]", ~/~/ The proxy password of mqtt: application access key of TTN |
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1.10 | 267 | "topic":"[str]", ~/~/ The topic of mqtt subscription: TTN is + / devices / + / up |
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1.5 | 268 | "connection":"[str]" }, ~/~/(Optional) mqtt is a string used for direct connection, composed of serveraddr and port |
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1.9 | 269 | "mapwize_conf":{ ~/~/Map settings |
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1.5 | 270 | "apikey": "[str]", ~/~/ The apikey of the map user can be found on the Api keys page of wapwize, and read and write permissions need to be set |
271 | "venueid":"[str]", ~/~/ (Optional)Indoor map area identification | ||
272 | "orgid":"[str]", ~/~/ The identity of the user organizer | ||
273 | "universesid":"[str]", ~/~/The range indicator of the indoor map, find it on the universes page | ||
274 | "placetype": "[str]" ~/~/The type of place used to identify the creation must be created on the placetypes page in the map, where the placetype name is filled in | ||
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1.2 | 275 | }, |
276 | "loracloud":{ | ||
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1.5 | 277 | "token": "[str]" ~/~/The password string of loracloud location service, the outdoor map must fill in the account token of loracloud |
278 | ))) | ||
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1.9 | 279 | ))) |
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1.2 | 280 | |
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1.9 | 281 | ((( |
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1.2 | 282 | } |
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1.9 | 283 | ))) |
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1.2 | 284 | |
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1.5 | 285 | (% class="box" %) |
286 | ((( | ||
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1.9 | 287 | ((( |
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1.5 | 288 | "rssi_conf": { |
289 | "rssirate": [int], ~/~/ (Optional) A basis for rssi calculation distance, the rssi value (absolute value) when the beacon is 1 meter apart | ||
290 | "rssidiv": [float] } ~/~/ (Optional) rssi measures an attenuation value of distance. As the distance to the beacon is farther, the value changes speed | ||
291 | ))) | ||
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1.9 | 292 | ))) |
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1.2 | 293 | |
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1.9 | 294 | ((( |
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1.2 | 295 | } |
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1.9 | 296 | ))) |
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1.2 | 297 | |
298 | * Parameter acquisition method of configuration file: | ||
299 | |||
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1.6 | 300 | (% class="box" %) |
301 | ((( | ||
302 | "username":"[str]" | ||
303 | ))) | ||
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1.2 | 304 | |
305 | [[image:https://wiki.dragino.com/images/thumb/d/da/Beacon50.png/600px-Beacon50.png||height="185" width="600"]] | ||
306 | |||
307 | username | ||
308 | |||
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1.6 | 309 | (% class="box" %) |
310 | ((( | ||
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1.8 | 311 | "password":"[str]" |
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1.6 | 312 | ))) |
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1.2 | 313 | |
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1.10 | 314 | [[image:https://wiki.dragino.com/images/thumb/b/bd/Beacon51.png/800px-Beacon51.png||alt="File:Beacon51.png" height="259" width="598"]] |
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1.2 | 315 | |
316 | password | ||
317 | |||
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1.6 | 318 | (% class="box" %) |
319 | ((( | ||
320 | "apikey": "[str]" | ||
321 | ))) | ||
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1.2 | 322 | |
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2.5 | 323 | [[image:https://wiki.dragino.com/images/thumb/5/53/Qwe3.png/800px-Qwe3.png||alt="File:Qwe3.png" height="325" width="606"]] |
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1.2 | 324 | |
325 | apikey | ||
326 | |||
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1.6 | 327 | (% class="box" %) |
328 | ((( | ||
329 | "orgid":"[str]" | ||
330 | ))) | ||
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1.2 | 331 | |
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1.10 | 332 | [[image:https://wiki.dragino.com/images/thumb/f/f4/Qwe4.png/800px-Qwe4.png||alt="File:Qwe4.png" height="304" width="622"]] |
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1.2 | 333 | |
334 | orgid | ||
335 | |||
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1.6 | 336 | (% class="box" %) |
337 | ((( | ||
338 | "universesid":"[str]" | ||
339 | ))) | ||
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1.2 | 340 | |
341 | [[image:https://wiki.dragino.com/images/thumb/9/9a/Qwe5.jpg/600px-Qwe5.jpg||height="424" width="600"]] | ||
342 | |||
343 | universesid | ||
344 | |||
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1.6 | 345 | (% class="box" %) |
346 | ((( | ||
347 | "placetype": "[str]" | ||
348 | ))) | ||
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1.2 | 349 | |
350 | [[image:https://wiki.dragino.com/images/thumb/9/93/Qwe6.png/600px-Qwe6.png||height="318" width="600"]] | ||
351 | |||
352 | placetype | ||
353 | |||
354 | |||
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1.6 | 355 | **Here are two ways to enter the server:** |
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1.2 | 356 | |
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1.6 | 357 | **~1. WinSCP** |
358 | |||
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1.2 | 359 | [[image:https://wiki.dragino.com/images/thumb/6/6b/Ibeacon4.jpg/600px-Ibeacon4.jpg||height="385" width="600"]] |
360 | |||
361 | [[image:https://wiki.dragino.com/images/thumb/7/78/Ibeacon5.jpg/600px-Ibeacon5.jpg||height="385" width="600"]] | ||
362 | |||
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1.10 | 363 | [[image:https://wiki.dragino.com/images/thumb/c/cd/Ibeacon6.jpg/800px-Ibeacon6.jpg||alt="File:Ibeacon6.jpg" height="362" width="599"]] |
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1.2 | 364 | |
365 | way1 | ||
366 | |||
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1.6 | 367 | **2. secureCRT** |
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1.2 | 368 | |
369 | [[image:https://wiki.dragino.com/images/thumb/7/7b/Ibeacon7.jpg/600px-Ibeacon7.jpg||height="326" width="600"]] | ||
370 | |||
371 | [[image:https://wiki.dragino.com/images/thumb/6/64/Ibeacon8.jpg/600px-Ibeacon8.jpg||height="326" width="600"]] | ||
372 | |||
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1.10 | 373 | [[image:https://wiki.dragino.com/images/thumb/d/de/Ibeacon9.jpg/800px-Ibeacon9.jpg||alt="File:Ibeacon9.jpg" height="327" width="602"]] |
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1.2 | 374 | |
375 | way2 | ||
376 | |||
377 | = 6. Test Result = | ||
378 | |||
379 | The real-time position on the map is obtained according to the moving change of LBT1. | ||
380 | |||
381 | [[image:https://wiki.dragino.com/images/thumb/7/70/Beacon15.png/600px-Beacon15.png||alt="Beacon15.png" height="294" width="600"]] |