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TrackerD-LS BLE indoor positioning example

1. Python Examples​

Step 1: Configure Python Simulator​

Enter the following information：

Subscribe to topics：MQTT Subscription Topic of TTN-V3

Example: v3/litest@ttn/devices/eui-70b3d57ed0058a17/up

  • v3: Unchanging
  • litest@ttn: 'litest' is the ID of the application, '@ttn' unchanging.If you use your own TTN platform, @ ttn doesn't need
  • devices: Unchanging
  • eui-70b3d57ed0058a17: TrackerD End Device ID
  • Up: Unchanging

server address：Server address of TTN-V3

Application ID：Application ID of TTN-V3

APIKEY：APIKEY of your own account

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Step 2: Click the save button after writing​

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Warning:

When the save button is pressed, it cannot be pressed again to prevent data confusion.

If you want to modify the subscription topic, you need to restart the application.

Step 3: Click the location button​

Just press once

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When the BLE node sends information, the application will display the located base station.

Step 4: About how to set the base station point and insert the floor plan​

Place the floor plan in the same path as the python script

Change the file name to office_map(The picture pixel is 800x600)

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Open source code

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Remove comments

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Run Script

The cursor position is the data pointed by the arrow, x=323 y=503

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cv. create_ Image is changed to (323,483)--(x y-20 above)

cv. create_ Image is changed to (323,503)---(x y above)

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After clicking Save, a log.txtwill be generated in the same directory as the script

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Back to script

Modifythe data obtained in log.txt to the script

“0” Changed to “10006”

“60245” Changed to “79”

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Step 5: Package the py file into an exe​

Step 1: Installing the pyinstaller module

Step 2: Open cmd and switch to the directory where the script is located

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Step 3: Enter the following command

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See the following certificate packaging completed.

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The following files will be generated in the same directory of the script.

In addition to dist, the other two files can be deleted.

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Finally, put the office_ Map.png and icon.png Put the into the dist folder.

Just run the program in dist.