Wiki source code of Mapwize

Version 27.2 by Xiaoling on 2022/05/26 15:34
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1 **~ Contents：**
2
3 {{toc/}}
4
5
6 = 1. Introduction =
7
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.
9
10 [[image:image-20220526150521-2.png]]
11
12 LBT1 Indoor Positioning Network Structure
13
14
15 = 2. Prepare Map =
16
17 == 2.1 Prepare iBeacons ==
18
19 (((
20 (((
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 )))
23 )))
24
25 (((
26 (((
27 First of all, user needs to accurately place the beacon at each location, which is the reference for positioning.
28 )))
29 )))
30
31 (((
32 (((
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 )))
35 )))
36
37 [[image:image-20220526150651-4.png]]
38
39 BCN01 iBeacon
40
41
42 (((
43 (((
44 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".
45 )))
46 )))
47
48 [[image:image-20220526150743-5.png]]
49
50 beacon software
51
52
53 [[image:image-20220526150824-6.png]]
54
55 beacon software
56
57
58 == 2.2 Create Map ==
59
60 (((
61 (((
62 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.
63 )))
64 )))
65
66 (((
67 (((
68 ~1. Register an account at [[https:~~/~~/studio.mapwize.io/>>url:https://studio.mapwize.io/]] to create an indoor map.
69 )))
70 )))
71
72 (((
73 (((
74 2. Create Place Types.
75 )))
76 )))
77
78 [[image:image-20220526150915-7.png]]
79
80 Create place types
81
82
83 3. Search Venues. （Indoor map area identification）
84
85 [[image:image-20220526151046-8.png]]
86
87 (((
88 (((
89 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.
90
91
92 )))
93 )))
94
95 4. Upload Floor plan.
96
97 [[image:image-20220526151223-9.png]]
98
99 add images
100
101
102 5. Create Layer
103
104 [[image:image-20220526151305-10.png]]
105
106 create layer
107
108
109 (((
110 6. Add iBeacon position info. Drag the iBeacon to match position and input the UUID, MAJOR and MINOR of this iBeacon.
111 )))
112
113 [[image:image-20220526151519-11.png]]
114
115 create iBeacon
116
117
118 = 3. Configure TTN =
119
120 == 3.1 Configure LBT1 to Upload data to TTN ==
121
122 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.
123
124
125 == 3.2 Decoder in TTN ==
126
127 (% class="box" %)
128 (((
129 function Decoder(bytes, port) {
130 \\~/~/ Decode an uplink message from a buffer
131 \\~/~/ (array) of bytes to an object of fields.
132 \\value = bytes[0] << 8 | bytes[1];
133 \\var batV = value/1000;~/~/Battery,units:V
134 \\var mode = bytes[5];
135 \\~/~/var value=(bytes[3]-0x30)*1000 +(bytes[5]-0x30)*100 + (bytes[5]-0x30)*10 +(bytes[6]-0x30);
136 \\~/~/var value = bytes.slice(3);
137 \\var i;
138 \\var con;
139 \\var str = "";
140 \\var major = 1;
141 \\var minor = 1;
142 \\var rssi = 0;
143 \\var addr = "";
144 \\if(mode ==2 ) {
145 \\ for(i = 38 ; i<50 ; i++) {
146 \\ con = bytes[i].toString();
147 \\ str += String.fromCharCode(con);
148 \\ }
149 \\ addr = str;
150 \\ str = "";
151 \\ for(i = 6 ; i<38 ; i++) {
152 \\ con = bytes[i].toString();
153 \\ str += String.fromCharCode(con);
154 \\ }
155 \\ value = str;
156 \\}
157 \\if(mode == 3 ) {
158 \\ str = "";
159 \\ for(i = 18 ; i < 22 ; i++) {
160 \\ con = bytes[i].toString();
161 \\ str += String.fromCharCode(con);
162 \\ }
163 \\ major = parseInt(str, 16);
164 \\ str = "";
165 \\ for(i = 22 ; i < 26 ; i++) {
166 \\ con = bytes[i].toString();
167 \\ str += String.fromCharCode(con);
168 \\ }
169 \\ minor = parseInt(str, 16);
170 \\ str = "";
171 \\ for(i = 28 ; i < 32 ; i++) {
172 \\ con = bytes[i].toString();
173 \\ str += String.fromCharCode(con);
174 \\ }
175 \\ rssi = parseInt(str);
176 \\ str = "";
177 \\ for(i = 6 ; i < 18 ; i++) {
178 \\ con = bytes[i].toString();
179 \\ str += String.fromCharCode(con);
180 }
181 \\ value = str;
182 }
183 \\if(mode == 1) {
184 \\ for(i = 6 ; i<11 ; i++) {
185 \\ con = bytes[i].toString();
186 \\ str += String.fromCharCode(con);
187 \\ }
188 \\ value = str;
189 }
190 \\var uuid = value;
191 \\var alarm = bytes[2] >> 4 & 0x0F;
192 \\var step_count = (bytes[2] & 0x0F) << 16 | bytes[3] << 8 | bytes[4];
193 \\return {
194 UUID: uuid,
195 ADDR: addr,
196 MAJOR: major,
197 MINOR: minor,
198 RSSI:rssi,
199 STEP: step_count,
200 ALARM: alarm,
201 BatV:batV,
202 };
203 }
204
205 )))
206
207
208 = 4. Set Up Converter Server =
209
210 * (((
211 How to install and run this service on Linux?
212 )))
213
214 (((
215 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).
216 )))
217
218 (((
219 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.
220 )))
221
222 (((
223 System: Debian / Ubuntu
224 )))
225
226 (% class="box" %)
227 (((
228 step:
229 \\1. sudo apt install libcurl4-dev 
230 \\2. sudo apt install  gcc automake autoconf libtool make cmake
231 \\3. git clone -b master https:~/~/github.com/mikayong/location.git
232 \\4. cd location/libmqtt
233 \\5. mkdir build
234 \\6. cd build && cmake ../
235 \\7. make && sudo make install 
236 \\8. cd ../
237 \\9. make 
238 \\10. sudo cp location_conf.json  /etc/
239 \\11. Edit the configuration file, and run the location service in the background: ./location &
240 )))
241
242 (((
243 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
244
245
246 )))
247
248 = 5. Configuration file： location_conf.json =
249
250 * (((
251 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.
252 )))
253
254 (((
255 { "location_conf": {
256 )))
257
258 (% class="box" %)
259 (((
260 (((
261 "loctype": "indoor",       ~/~/ indoor/outdoor
262 "locmap": "mapwize"    ~/~/   Map interface: mapwize， traccar
263 )))
264 )))
265
266 (((
267 }, "mqtt_conf": {
268 )))
269
270 (% class="box" %)
271 (((
272 (((
273 "servaddr": "[str]",    ~/~/     Lorawan server address: Refer to TTN app handler：eu.thethings.network
274 "servport": [int],       ~/~/   Lorawan server port: 1883
275 "clientid": "[str]",       ~/~/   MQTT client identity: Custom
276 "qos":[int],                 ~/~/  （Optional） MQTT service quality: 0
277 "username":"[str]",     ~/~/   Agent name of mqtt: application ID of TTN
278 "password":"[str]",      ~/~/  The proxy password of mqtt: application access key of TTN
279 "topic":"[str]",              ~/~/ The topic of mqtt subscription: TTN is + / devices / + / up
280 "connection":"[str]" },   ~/~/（Optional） mqtt is a string used for direct connection, composed of serveraddr and port
281 "mapwize_conf":{          ~/~/Map settings
282 "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
283 "venueid":"[str]",        ~/~/ （Optional）Indoor map area identification
284 "orgid":"[str]",           ~/~/  The identity of the user organizer
285 "universesid":"[str]",   ~/~/The range indicator of the indoor map, find it on the universes page
286 "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
287 },
288 "loracloud":{
289 "token":  "[str]"          ~/~/The password string of loracloud location service, the outdoor map must fill in the account token of loracloud
290 )))
291 )))
292
293 (((
294 }
295 )))
296
297 (% class="box" %)
298 (((
299 (((
300 "rssi_conf": {
301 "rssirate": [int],          ~/~/ （Optional） A basis for rssi calculation distance, the rssi value (absolute value) when the beacon is 1 meter apart 
302 "rssidiv": [float] }        ~/~/ （Optional） rssi measures an attenuation value of distance. As the distance to the beacon is farther, the value changes speed
303 )))
304 )))
305
306 (((
307 }
308 )))
309
310 * Parameter acquisition method of configuration file：
311
312 (% class="box" %)
313 (((
314 "username":"[str]"
315 )))
316
317 [[image:image-20220526151707-12.png]]
318
319 username
320
321
322 (% class="box" %)
323 (((
324 "password":"[str]"     
325 )))
326
327 [[image:image-20220526151736-13.png]]
328
329 password
330
331
332 (% class="box" %)
333 (((
334 "apikey": "[str]"
335 )))
336
337 [[image:image-20220526151819-14.png||height="588" width="1203"]]
338
339 apikey
340
341 (% class="box" %)
342 (((
343 "orgid":"[str]"
344 )))
345
346 [[image:image-20220526152014-15.png]]
347
348 orgid
349
350
351 (% class="box" %)
352 (((
353 "universesid":"[str]"
354 )))
355
356 [[image:image-20220526152115-16.png]]
357
358 universesid
359
360
361 (% class="box" %)
362 (((
363 "placetype": "[str]"
364 )))
365
366 [[image:image-20220526152150-17.png]]
367
368 placetype
369
370
371 **Here are two ways to enter the server：**
372
373 **~1. WinSCP**
374
375 [[image:image-20220526152303-18.png]]
376
377
378 [[image:image-20220526152355-19.png]]
379
380
381 [[image:image-20220526152912-20.png]]
382
383 way1
384
385
386 **2. secureCRT**
387
388 [[image:image-20220526153145-22.png]]
389
390 [[image:image-20220526153236-23.png]]
391
392 [[image:image-20220526153304-24.png]]
393
394 way2
395
396
397 = 6. Test Result =
398
399 The real-time position on the map is obtained according to the moving change of LBT1.
400
401 [[image:image-20220526153424-25.png||height="693" width="1414"]]

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