in_dir = /path/to/in_files/on/nas
out_dir = /path/to/out_files/on/nas

def convert_all_files(in_dir, out_dir):
    os.chdir(in_dir)
    in_files = glob.glob('*.bin')

    with MyDao() as dao:    #MyDao is a database access object class
        for mf in in_files:
            caseid = mf.split('_', 1)[0]
            time_info = bin2txt(mf, out_dir)    #bin2txt is the function to convert bin file to txt files
            dao.save(caseid, time_info)         #save time info to DB