Skip to Content

Wiki source code of Mapwize

Version 28.3 by Xiaoling on 2022/07/25 11:32
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 = 3. Configure TTN =
145
146 == 3.1 Configure LBT1 to Upload data to TTN ==
147
148 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.
149
150
151 == 3.2 Decoder in TTN ==
152
153 (% class="box" %)
154 (((
155 function Decoder(bytes, port) {
156 \\~/~/ Decode an uplink message from a buffer
157 \\~/~/ (array) of bytes to an object of fields.
158 \\value = bytes[0] << 8 | bytes[1];
159 \\var batV = value/1000;~/~/Battery,units:V
160 \\var mode = bytes[5];
161 \\~/~/var value=(bytes[3]-0x30)*1000 +(bytes[5]-0x30)*100 + (bytes[5]-0x30)*10 +(bytes[6]-0x30);
162 \\~/~/var value = bytes.slice(3);
163 \\var i;
164 \\var con;
165 \\var str = "";
166 \\var major = 1;
167 \\var minor = 1;
168 \\var rssi = 0;
169 \\var addr = "";
170 \\if(mode ==2 ) {
171 \\ for(i = 38 ; i<50 ; i++) {
172 \\ con = bytes[i].toString();
173 \\ str += String.fromCharCode(con);
174 \\ }
175 \\ addr = str;
176 \\ str = "";
177 \\ for(i = 6 ; i<38 ; i++) {
178 \\ con = bytes[i].toString();
179 \\ str += String.fromCharCode(con);
180 \\ }
181 \\ value = str;
182 \\}
183 \\if(mode == 3 ) {
184 \\ str = "";
185 \\ for(i = 18 ; i < 22 ; i++) {
186 \\ con = bytes[i].toString();
187 \\ str += String.fromCharCode(con);
188 \\ }
189 \\ major = parseInt(str, 16);
190 \\ str = "";
191 \\ for(i = 22 ; i < 26 ; i++) {
192 \\ con = bytes[i].toString();
193 \\ str += String.fromCharCode(con);
194 \\ }
195 \\ minor = parseInt(str, 16);
196 \\ str = "";
197 \\ for(i = 28 ; i < 32 ; i++) {
198 \\ con = bytes[i].toString();
199 \\ str += String.fromCharCode(con);
200 \\ }
201 \\ rssi = parseInt(str);
202 \\ str = "";
203 \\ for(i = 6 ; i < 18 ; i++) {
204 \\ con = bytes[i].toString();
205 \\ str += String.fromCharCode(con);
206 }
207 \\ value = str;
208 }
209 \\if(mode == 1) {
210 \\ for(i = 6 ; i<11 ; i++) {
211 \\ con = bytes[i].toString();
212 \\ str += String.fromCharCode(con);
213 \\ }
214 \\ value = str;
215 }
216 \\var uuid = value;
217 \\var alarm = bytes[2] >> 4 & 0x0F;
218 \\var step_count = (bytes[2] & 0x0F) << 16 | bytes[3] << 8 | bytes[4];
219 \\return {
220 UUID: uuid,
221 ADDR: addr,
222 MAJOR: major,
223 MINOR: minor,
224 RSSI:rssi,
225 STEP: step_count,
226 ALARM: alarm,
227 BatV:batV,
228 };
229 }
230
231 )))
232
233
234 = 4. Set Up Converter Server =
235
236 * (((
237 How to install and run this service on Linux?
238 )))
239
240 (((
241 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).
242 )))
243
244 (((
245 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.
246 )))
247
248 (((
249 System: Debian / Ubuntu
250 )))
251
252 (% class="box" %)
253 (((
254 step:
255 \\1. sudo apt install libcurl4-dev 
256 \\2. sudo apt install  gcc automake autoconf libtool make cmake
257 \\3. git clone -b master https:~/~/github.com/mikayong/location.git
258 \\4. cd location/libmqtt
259 \\5. mkdir build
260 \\6. cd build && cmake ../
261 \\7. make && sudo make install 
262 \\8. cd ../
263 \\9. make 
264 \\10. sudo cp location_conf.json  /etc/
265 \\11. Edit the configuration file, and run the location service in the background: ./location &
266 )))
267
268 (((
269 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
270
271
272 )))
273
274 = 5. Configuration file： location_conf.json =
275
276 * (((
277 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.
278 )))
279
280 (((
281 { "location_conf": {
282 )))
283
284 (% class="box" %)
285 (((
286 (((
287 "loctype": "indoor",       ~/~/ indoor/outdoor
288 "locmap": "mapwize"    ~/~/   Map interface: mapwize， traccar
289 )))
290 )))
291
292 (((
293 }, "mqtt_conf": {
294 )))
295
296 (% class="box" %)
297 (((
298 (((
299 "servaddr": "[str]",    ~/~/     Lorawan server address: Refer to TTN app handler：eu.thethings.network
300 "servport": [int],       ~/~/   Lorawan server port: 1883
301 "clientid": "[str]",       ~/~/   MQTT client identity: Custom
302 "qos":[int],                 ~/~/  （Optional） MQTT service quality: 0
303 "username":"[str]",     ~/~/   Agent name of mqtt: application ID of TTN
304 "password":"[str]",      ~/~/  The proxy password of mqtt: application access key of TTN
305 "topic":"[str]",              ~/~/ The topic of mqtt subscription: TTN is + / devices / + / up
306 "connection":"[str]" },   ~/~/（Optional） mqtt is a string used for direct connection, composed of serveraddr and port
307 "mapwize_conf":{          ~/~/Map settings
308 "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
309 "venueid":"[str]",        ~/~/ （Optional）Indoor map area identification
310 "orgid":"[str]",           ~/~/  The identity of the user organizer
311 "universesid":"[str]",   ~/~/The range indicator of the indoor map, find it on the universes page
312 "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
313 },
314 "loracloud":{
315 "token":  "[str]"          ~/~/The password string of loracloud location service, the outdoor map must fill in the account token of loracloud
316 )))
317 )))
318
319 (((
320 }
321 )))
322
323 (% class="box" %)
324 (((
325 (((
326 "rssi_conf": {
327 "rssirate": [int],          ~/~/ （Optional） A basis for rssi calculation distance, the rssi value (absolute value) when the beacon is 1 meter apart 
328 "rssidiv": [float] }        ~/~/ （Optional） rssi measures an attenuation value of distance. As the distance to the beacon is farther, the value changes speed
329 )))
330 )))
331
332 (((
333 }
334 )))
335
336 * Parameter acquisition method of configuration file：
337
338 (% class="box" %)
339 (((
340 "username":"[str]"
341 )))
342
343 [[image:image-20220526151707-12.png]]
344
345 username
346
347
348 (% class="box" %)
349 (((
350 "password":"[str]"     
351 )))
352
353 [[image:image-20220526151736-13.png]]
354
355 password
356
357
358 (% class="box" %)
359 (((
360 "apikey": "[str]"
361 )))
362
363 [[image:image-20220526151819-14.png||height="588" width="1203"]]
364
365 apikey
366
367 (% class="box" %)
368 (((
369 "orgid":"[str]"
370 )))
371
372 [[image:image-20220526152014-15.png]]
373
374 orgid
375
376
377 (% class="box" %)
378 (((
379 "universesid":"[str]"
380 )))
381
382 [[image:image-20220526152115-16.png]]
383
384 universesid
385
386
387 (% class="box" %)
388 (((
389 "placetype": "[str]"
390 )))
391
392 [[image:image-20220526152150-17.png]]
393
394 placetype
395
396
397 **Here are two ways to enter the server：**
398
399 **~1. WinSCP**
400
401 [[image:image-20220526152303-18.png]]
402
403
404 [[image:image-20220526152355-19.png]]
405
406
407 [[image:image-20220526152912-20.png]]
408
409 way1
410
411
412 **2. secureCRT**
413
414 [[image:image-20220526153145-22.png]]
415
416 [[image:image-20220526153236-23.png]]
417
418 [[image:image-20220526153304-24.png]]
419
420 way2
421
422
423 = 6. Test Result =
424
425 The real-time position on the map is obtained according to the moving change of LBT1.
426
427 [[image:image-20220526153424-25.png||height="693" width="1414"]]