Skip to Content

Wiki source code of Mapwize

Version 28.7 by Xiaoling on 2022/07/25 13:39
Show last authors
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 (% style="color:blue" %)**How to install and run this service on Linux?**
245 )))
246
247 (((
248 (% style="color:red" %)**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 (% style="color:red" %)**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
257 (((
258 **System:  Debian / Ubuntu**
259 )))
260
261 (% class="box" %)
262 (((
263 (% style="color:blue" %)**step:**(%%)
264 \\1. **sudo** apt install libcurl4-dev 
265 \\2. **sudo** apt **install  gcc automake autoconf** libtool **make** cmake
266 \\3. git clone -b master https:~/~/github.com/mikayong/location.git
267 \\4. cd location/libmqtt
268 \\5. mkdir build
269 \\6. cd build && cmake ../
270 \\7. make && sudo make install 
271 \\8. cd ../
272 \\9. make 
273 \\10. sudo cp location_conf.json  /etc/
274 \\11. Edit the configuration file, and run the location service in the background: ./location &
275 )))
276
277 (((
278 (% style="color:red" %)**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
279
280
281
282 )))
283
284 = 5.  Configuration file： location_conf.json =
285
286
287 * (((
288 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.
289
290
291
292 )))
293
294 (((
295 { "location_conf": {
296 )))
297
298 (% class="box" %)
299 (((
300 (((
301 "loctype": "indoor",       ~/~/ indoor/outdoor
302 "locmap": "mapwize"    ~/~/   Map interface: mapwize， traccar
303 )))
304 )))
305
306 (((
307 }, "mqtt_conf": {
308 )))
309
310 (% class="box" %)
311 (((
312 (((
313 "servaddr": "[str]",    ~/~/     Lorawan server address: Refer to TTN app handler：eu.thethings.network
314 "servport": [int],       ~/~/   Lorawan server port: 1883
315 "clientid": "[str]",       ~/~/   MQTT client identity: Custom
316 "qos":[int],                 ~/~/  （Optional） MQTT service quality: 0
317 "username":"[str]",     ~/~/   Agent name of mqtt: application ID of TTN
318 "password":"[str]",      ~/~/  The proxy password of mqtt: application access key of TTN
319 "topic":"[str]",              ~/~/ The topic of mqtt subscription: TTN is + / devices / + / up
320 "connection":"[str]" },   ~/~/（Optional） mqtt is a string used for direct connection, composed of serveraddr and port
321 "mapwize_conf":{          ~/~/Map settings
322 "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
323 "venueid":"[str]",        ~/~/ （Optional）Indoor map area identification
324 "orgid":"[str]",           ~/~/  The identity of the user organizer
325 "universesid":"[str]",   ~/~/The range indicator of the indoor map, find it on the universes page
326 "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
327 },
328 "loracloud":{
329 "token":  "[str]"          ~/~/The password string of loracloud location service, the outdoor map must fill in the account token of loracloud
330 )))
331 )))
332
333 (((
334 }
335 )))
336
337 (% class="box" %)
338 (((
339 (((
340 "rssi_conf": {
341 "rssirate": [int],          ~/~/ （Optional） A basis for rssi calculation distance, the rssi value (absolute value) when the beacon is 1 meter apart 
342 "rssidiv": [float] }        ~/~/ （Optional） rssi measures an attenuation value of distance. As the distance to the beacon is farther, the value changes speed
343 )))
344 )))
345
346 (((
347 }
348 )))
349
350 * Parameter acquisition method of configuration file：
351
352 (% class="box" %)
353 (((
354 "username":"[str]"
355 )))
356
357
358 [[image:image-20220526151707-12.png]]
359
360 username
361
362
363
364 (% class="box" %)
365 (((
366 "password":"[str]"     
367 )))
368
369 [[image:image-20220526151736-13.png]]
370
371 password
372
373
374
375 (% class="box" %)
376 (((
377 "apikey": "[str]"
378 )))
379
380 [[image:image-20220526151819-14.png||height="588" width="1203"]]
381
382 apikey
383
384
385
386 (% class="box" %)
387 (((
388 "orgid":"[str]"
389 )))
390
391 [[image:image-20220526152014-15.png]]
392
393 orgid
394
395
396
397 (% class="box" %)
398 (((
399 "universesid":"[str]"
400 )))
401
402 [[image:image-20220526152115-16.png]]
403
404 universesid
405
406
407
408 (% class="box" %)
409 (((
410 "placetype": "[str]"
411 )))
412
413 [[image:image-20220526152150-17.png]]
414
415 placetype
416
417
418
419 (% style="color:blue" %)**Here are two ways to enter the server：**
420
421 (% style="color:red" %)**1. WinSCP**
422
423 [[image:image-20220526152303-18.png]]
424
425
426 [[image:image-20220526152355-19.png]]
427
428
429 [[image:image-20220526152912-20.png]]
430
431 way1
432
433
434
435 (% style="color:red" %)**2. secureCRT**
436
437 [[image:image-20220526153145-22.png]]
438
439 [[image:image-20220526153236-23.png]]
440
441 [[image:image-20220526153304-24.png]]
442
443 way2
444
445
446
447 = 6.  Test Result =
448
449
450 The real-time position on the map is obtained according to the moving change of LBT1.
451
452
453 [[image:image-20220526153424-25.png||height="693" width="1414"]]