YIHTONG, nke dị na Henan, China, ewepụtala ihe nchọpụta nwere ọgụgụ isi ihe mkpofu, nke dabara na ihe mmetụta A13 nke ụlọ ọrụ anyị maka ngwa ultrasonic remote range.
YIHTONG na-eji teknụzụ sensọ ultrasonic dị ka onye na-achọpụta ihe, na-ebufe ozi na data ozugbo site na modul nkwurịta okwu NB-IoT, ma na-enyocha ọnọdụ jubigara ókè nke ihe mkpofu na-ekesa na mpaghara ọrụ site na ijikọta na ikpo okwu igwe ojii GIS.
