--------------------------train data--------------------------------------
file_num1 file_num2 type num
5 20180927151119 1 1-100 holdsafetybelt_f
6 20180927151505 2 101-200 holdsafetybelt_b
7 20180927151745 5 201-300 holdsafetybelt_lf
8 20180927152027 6 301-400 holdsafetybelt_lb
9 20180927152253 7 401-500 holdsafetybelt_rf
10 20180927152444 8 501-600 holdsafetybelt_rb
11 20180927152624 4 601-700 holdsafetybelt_r
12 20180927152756 3 701-800 holdsafetybelt_l
13 20180927153047 9 801-900 holdlifeline_f
14 20180927153234 15 901-1000 holdlifeline_rf
15 20180927153415 12 1001-1100 holdlifeline_r
16 20180927153606 16 1101-1200 holdlifeline_rb
17 20180927153728 10 1201-1300 holdlifeline_b
18 20180927153855 14 1301-1400 holdlifeline_lb
19 20180927154015 11 1401-1500 holdlifeline_l
20 20180927154133 13 1501-1600 holdlifeline_lf
---------------------test data------------------------------------------
3 20180927150718 1 1-100
2 20180927152444 8 101-199
4 20180927151050 1 200-221