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Wiki source code of Mapwize

Version 28.4 by Xiaoling on 2022/07/25 11:33
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1 **~ Table of Contents：**
2
3 {{toc/}}
4
5
6
7
8 = 1.  Introduction =
9
10
11 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.
12
13
14 [[image:image-20220526150521-2.png]]
15
16 LBT1 Indoor Positioning Network Structure
17
18
19
20 = 2.  Prepare Map =
21
22
23 == 2.1  Prepare iBeacons ==
24
25
26 (((
27 (((
28 Any BLE iBeacons should work in this solution, each iBeacon stands for a fix position in the map. Here is an iBeacon for example.
29 )))
30 )))
31
32 (((
33 (((
34 First of all, user needs to accurately place the beacon at each location, which is the reference for positioning.
35 )))
36 )))
37
38 (((
39 (((
40 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]]
41
42
43 )))
44 )))
45
46 [[image:image-20220526150651-4.png]]
47
48 BCN01 iBeacon
49
50
51
52 (((
53 (((
54 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".
55 )))
56 )))
57
58 [[image:image-20220526150743-5.png]]
59
60 beacon software
61
62
63
64 [[image:image-20220526150824-6.png]]
65
66 beacon software
67
68
69
70 == 2.2  Create Map ==
71
72
73 (((
74 (((
75 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.
76
77
78 )))
79 )))
80
81 (((
82 (((
83 **~1. Register an account at [[https:~~/~~/studio.mapwize.io/>>url:https://studio.mapwize.io/]] to create an indoor map.**
84 )))
85 )))
86
87 (((
88 (((
89 **2. Create Place Types.**
90
91
92 )))
93 )))
94
95 [[image:image-20220526150915-7.png]]
96
97 Create place types
98
99
100
101 **3. Search Venues. （Indoor map area identification）**
102
103
104 [[image:image-20220526151046-8.png]]
105
106
107 (((
108 (((
109 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.
110
111
112
113 )))
114 )))
115
116 **4. Upload Floor plan.**
117
118
119 [[image:image-20220526151223-9.png]]
120
121 add images
122
123
124
125 **5. Create Layer**
126
127
128 [[image:image-20220526151305-10.png]]
129
130 create layer
131
132
133 (((
134 **6. Add iBeacon position info. Drag the iBeacon to match position and input the UUID, MAJOR and MINOR of this iBeacon.**
135
136
137 )))
138
139 [[image:image-20220526151519-11.png]]
140
141 create iBeacon
142
143
144
145 = 3.  Configure TTN =
146
147
148 == 3.1  Configure LBT1 to Upload data to TTN ==
149
150
151 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.
152
153
154
155 == 3.2  Decoder in TTN ==
156
157
158 (% class="box" %)
159 (((
160 function Decoder(bytes, port) {
161 \\~/~/ Decode an uplink message from a buffer
162 \\~/~/ (array) of bytes to an object of fields.
163 \\value = bytes[0] << 8 | bytes[1];
164 \\var batV = value/1000;~/~/Battery,units:V
165 \\var mode = bytes[5];
166 \\~/~/var value=(bytes[3]-0x30)*1000 +(bytes[5]-0x30)*100 + (bytes[5]-0x30)*10 +(bytes[6]-0x30);
167 \\~/~/var value = bytes.slice(3);
168 \\var i;
169 \\var con;
170 \\var str = "";
171 \\var major = 1;
172 \\var minor = 1;
173 \\var rssi = 0;
174 \\var addr = "";
175 \\if(mode ==2 ) {
176 \\ for(i = 38 ; i<50 ; i++) {
177 \\ con = bytes[i].toString();
178 \\ str += String.fromCharCode(con);
179 \\ }
180 \\ addr = str;
181 \\ str = "";
182 \\ for(i = 6 ; i<38 ; i++) {
183 \\ con = bytes[i].toString();
184 \\ str += String.fromCharCode(con);
185 \\ }
186 \\ value = str;
187 \\}
188 \\if(mode == 3 ) {
189 \\ str = "";
190 \\ for(i = 18 ; i < 22 ; i++) {
191 \\ con = bytes[i].toString();
192 \\ str += String.fromCharCode(con);
193 \\ }
194 \\ major = parseInt(str, 16);
195 \\ str = "";
196 \\ for(i = 22 ; i < 26 ; i++) {
197 \\ con = bytes[i].toString();
198 \\ str += String.fromCharCode(con);
199 \\ }
200 \\ minor = parseInt(str, 16);
201 \\ str = "";
202 \\ for(i = 28 ; i < 32 ; i++) {
203 \\ con = bytes[i].toString();
204 \\ str += String.fromCharCode(con);
205 \\ }
206 \\ rssi = parseInt(str);
207 \\ str = "";
208 \\ for(i = 6 ; i < 18 ; i++) {
209 \\ con = bytes[i].toString();
210 \\ str += String.fromCharCode(con);
211 }
212 \\ value = str;
213 }
214 \\if(mode == 1) {
215 \\ for(i = 6 ; i<11 ; i++) {
216 \\ con = bytes[i].toString();
217 \\ str += String.fromCharCode(con);
218 \\ }
219 \\ value = str;
220 }
221 \\var uuid = value;
222 \\var alarm = bytes[2] >> 4 & 0x0F;
223 \\var step_count = (bytes[2] & 0x0F) << 16 | bytes[3] << 8 | bytes[4];
224 \\return {
225 UUID: uuid,
226 ADDR: addr,
227 MAJOR: major,
228 MINOR: minor,
229 RSSI:rssi,
230 STEP: step_count,
231 ALARM: alarm,
232 BatV:batV,
233 };
234 }
235
236 )))
237
238
239
240 = 4.  Set Up Converter Server =
241
242
243 * (((
244 **How to install and run this service on Linux?**
245 )))
246
247 (((
248 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).
249 )))
250
251 (((
252 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.
253 )))
254
255 (((
256 System:  Debian / Ubuntu
257 )))
258
259 (% class="box" %)
260 (((
261 **step:**
262 \\1. sudo apt install libcurl4-dev 
263 \\2. sudo apt install  gcc automake autoconf libtool make cmake
264 \\3. git clone -b master https:~/~/github.com/mikayong/location.git
265 \\4. cd location/libmqtt
266 \\5. mkdir build
267 \\6. cd build && cmake ../
268 \\7. make && sudo make install 
269 \\8. cd ../
270 \\9. make 
271 \\10. sudo cp location_conf.json  /etc/
272 \\11. Edit the configuration file, and run the location service in the background: ./location &
273 )))
274
275 (((
276 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
277
278
279 )))
280
281 = 5. Configuration file： location_conf.json =
282
283 * (((
284 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.
285 )))
286
287 (((
288 { "location_conf": {
289 )))
290
291 (% class="box" %)
292 (((
293 (((
294 "loctype": "indoor",       ~/~/ indoor/outdoor
295 "locmap": "mapwize"    ~/~/   Map interface: mapwize， traccar
296 )))
297 )))
298
299 (((
300 }, "mqtt_conf": {
301 )))
302
303 (% class="box" %)
304 (((
305 (((
306 "servaddr": "[str]",    ~/~/     Lorawan server address: Refer to TTN app handler：eu.thethings.network
307 "servport": [int],       ~/~/   Lorawan server port: 1883
308 "clientid": "[str]",       ~/~/   MQTT client identity: Custom
309 "qos":[int],                 ~/~/  （Optional） MQTT service quality: 0
310 "username":"[str]",     ~/~/   Agent name of mqtt: application ID of TTN
311 "password":"[str]",      ~/~/  The proxy password of mqtt: application access key of TTN
312 "topic":"[str]",              ~/~/ The topic of mqtt subscription: TTN is + / devices / + / up
313 "connection":"[str]" },   ~/~/（Optional） mqtt is a string used for direct connection, composed of serveraddr and port
314 "mapwize_conf":{          ~/~/Map settings
315 "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
316 "venueid":"[str]",        ~/~/ （Optional）Indoor map area identification
317 "orgid":"[str]",           ~/~/  The identity of the user organizer
318 "universesid":"[str]",   ~/~/The range indicator of the indoor map, find it on the universes page
319 "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
320 },
321 "loracloud":{
322 "token":  "[str]"          ~/~/The password string of loracloud location service, the outdoor map must fill in the account token of loracloud
323 )))
324 )))
325
326 (((
327 }
328 )))
329
330 (% class="box" %)
331 (((
332 (((
333 "rssi_conf": {
334 "rssirate": [int],          ~/~/ （Optional） A basis for rssi calculation distance, the rssi value (absolute value) when the beacon is 1 meter apart 
335 "rssidiv": [float] }        ~/~/ （Optional） rssi measures an attenuation value of distance. As the distance to the beacon is farther, the value changes speed
336 )))
337 )))
338
339 (((
340 }
341 )))
342
343 * Parameter acquisition method of configuration file：
344
345 (% class="box" %)
346 (((
347 "username":"[str]"
348 )))
349
350 [[image:image-20220526151707-12.png]]
351
352 username
353
354
355 (% class="box" %)
356 (((
357 "password":"[str]"     
358 )))
359
360 [[image:image-20220526151736-13.png]]
361
362 password
363
364
365 (% class="box" %)
366 (((
367 "apikey": "[str]"
368 )))
369
370 [[image:image-20220526151819-14.png||height="588" width="1203"]]
371
372 apikey
373
374 (% class="box" %)
375 (((
376 "orgid":"[str]"
377 )))
378
379 [[image:image-20220526152014-15.png]]
380
381 orgid
382
383
384 (% class="box" %)
385 (((
386 "universesid":"[str]"
387 )))
388
389 [[image:image-20220526152115-16.png]]
390
391 universesid
392
393
394 (% class="box" %)
395 (((
396 "placetype": "[str]"
397 )))
398
399 [[image:image-20220526152150-17.png]]
400
401 placetype
402
403
404 **Here are two ways to enter the server：**
405
406 **~1. WinSCP**
407
408 [[image:image-20220526152303-18.png]]
409
410
411 [[image:image-20220526152355-19.png]]
412
413
414 [[image:image-20220526152912-20.png]]
415
416 way1
417
418
419 **2. secureCRT**
420
421 [[image:image-20220526153145-22.png]]
422
423 [[image:image-20220526153236-23.png]]
424
425 [[image:image-20220526153304-24.png]]
426
427 way2
428
429
430 = 6. Test Result =
431
432 The real-time position on the map is obtained according to the moving change of LBT1.
433
434 [[image:image-20220526153424-25.png||height="693" width="1414"]]