first: copy this code to your ~/ , change the folder name to 'digits-multi-detect'
second: follow setup.txt
third: type http://localhost:5000/ in your browser
4: prepare your own data, like kitt dataset
5: prepare your label.txt in the data folder. Here, you only need to list your class name in the label.txt
6: use the detectnet_network_multiclass.prototxt, change the output num to your own class number. Here 5 places need to be set, line 24, 63, 2328, 2446, 2461
7: use test.py to test your pictures.
good luck!