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Title

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1		-Example of BLE indoor positioning python
	1	+Operating instructions for BLE indoor positioning

Content

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	1	+(% class="wikigeneratedid" %)
	2	+**Table of Contents:**
	3	+
	4	+{{toc/}}
	5	+
	6	+
	7	+
	8	+
	9	+= 1. Operating instructions for BLE indoor positioning =
	10	+
	11	+
	12	+== Step 1: open the application ==
	13	+
	14	+
	15	+(% style="color:blue" %)**Enter the following information：**
	16	+
	17	+(% style="color:#037691" %)**Subscribe to topics：**(%%)**MQTT Subscription Topic of TTN-V3**
	18	+
	19	+**Example: **v3/litest@ttn/devices/eui-70b3d57ed0058a17/up
	20	+
	21	+* v3: Unchanging
	22	+
	23	+* litest@ttn:'litest' is the ID of the application, '@ttn' unchanging.If you use your own TTN platform, @ ttn doesn't need
	24	+
	25	+* devices: Unchanging
	26	+
	27	+* eui-70b3d57ed0058a17: End device ID
	28	+
	29	+* Up: Unchanging
	30	+
	31	+(% style="color:#037691" %)**server address：**(%%)**Server address of TTN-V3()**
	32	+
	33	+(% style="color:#037691" %)**Application ID：**(%%)**Application ID of TTN-V3()**
	34	+
	35	+(% style="color:#037691" %)**APIKEY：  **(%%)**APIKEY of your own account()**
	36	+
	37	+
	38	+[[image:image-20221221144423-1.png]]
	39	+
	40	+
	41	+[[image:image-20221221144423-2.png||height="534" width="1081"]]
	42	+
	43	+
	44	+[[image:image-20221221144423-3.png]]
	45	+
	46	+
	47	+== Step 2: Click the save button after writing ==
	48	+
	49	+
	50	+[[image:image-20221221144423-4.png]]
	51	+
	52	+
	53	+(% style="background-color:yellow" %)**Warning:**
	54	+
	55	+When the save button is pressed, it cannot be pressed again to prevent data confusion.
	56	+
	57	+If you want to modify the subscription topic, you need to restart the application.
	58	+
	59	+
	60	+== Step 3: Click the location button ==
	61	+
	62	+
	63	+Just press once
	64	+
	65	+[[image:image-20221221144423-5.png]]
	66	+
	67	+
	68	+When the BLE node sends information, the application will display the located base station.
	69	+
	70	+
	71	+== Step 4: About how to set the base station point and insert the floor plan ==
	72	+
	73	+
	74	+Place the floor plan in the same path as the python script
	75	+
	76	+Change the file name to office_ map(The picture pixel is 800x600)
	77	+
	78	+[[image:image-20221221144423-7.png]]
	79	+
	80	+
	81	+(% style="color:blue" %)**Open source code**
	82	+
	83	+[[image:image-20221221144423-8.png]]
	84	+
	85	+
	86	+(% style="color:blue" %)**Remove comments**
	87	+
	88	+[[image:image-20221221144423-9.png]]
	89	+
	90	+
	91	+(% style="color:blue" %)**Run Script**
	92	+
	93	+The cursor position is the data pointed by the arrow, x=323 y=503
	94	+
	95	+[[image:image-20221221144423-10.png]]
	96	+
	97	+cv. create_ Image is changed to (323,483)~-~-(x y-20 above)
	98	+
	99	+cv. create_ Image is changed to (323,503)~-~--(x y above)
	100	+
	101	+[[image:image-20221221144423-11.png]]
	102	+
	103	+
	104	+
	105	+After clicking Save, a (% style="color:blue" %)**log.txt** (%%)will be generated in the same directory as the script
	106	+
	107	+[[image:image-20221221144423-12.png]]
	108	+
	109	+
	110	+[[image:image-20221221144423-13.png||height="176" width="1080"]]
	111	+
	112	+
	113	+(% style="color:blue" %)**Back to script**
	114	+
	115	+Modify (% style="display:none" %) (%%)the data obtained in (% style="color:blue" %)**log.txt**(%%) to the script
	116	+
	117	+(% style="color:#037691" %)**“0” Changed to “10006”**
	118	+
	119	+(% style="color:#037691" %)**“60245” Changed to “79”**
	120	+
	121	+[[image:image-20221221144423-14.png]]
	122	+
	123	+
	124	+== Step 5: Package the py file into an exe ==
	125	+
	126	+
	127	+(% style="color:blue" %)**Step 1：**(%%)Installing the pyinstaller module
	128	+
	129	+(% style="color:blue" %)**Step 2：**(%%)Open cmd and switch to the directory where the script is located
	130	+
	131	+[[image:image-20221221144423-15.png]]
	132	+
	133	+
	134	+(% style="color:blue" %)**Step 3：**(%%)Enter the following command
	135	+
	136	+[[image:image-20221221144423-16.png]]
	137	+
	138	+
	139	+See the following certificate packaging completed.
	140	+
	141	+[[image:image-20221221144423-17.png]]
	142	+
	143	+
	144	+The following files will be generated in the same directory of the script.
	145	+
	146	+In addition to dist, the other two files can be deleted.
	147	+
	148	+[[image:image-20221221144423-18.png]]
	149	+
	150	+(% style="color:blue" %)**Finally**(%%), put the office_ Map.png and icon.png Put the into the dist folder.
	151	+
	152	+Just run the program in dist.
	153	+
	154	+