????:1?????:?????

2??????

3?????????

4???????

5????????

?6??17????(??????????????????? ???????????????)?????????????,?GPS?,??“???????????”?????......????????17????????,?????????????????????????

??????,?????????,????,??????????????????????????????????????,????GPS??,????????“?????????”???,??,?????????

????????,??,???????????,???????????,????,?????????????????????????,???,???“??????????”????“??????”???????,??????????????????

????,????????????,???????????????????????,????????????????????????4G???????????????“???????????????”????????????????,??????5000?????????????500??????,??????????????????,??

???,??,??????????????,???????6?????????????,????120?,?????

??????????????????????,??????????????,?????????????????????????,???????????????GPS“?????”?????????????,??????(???????) ???????????????:????