Ko YIHTONG, kei Henan, Haina, kua whakawhanake i tetahi kaitoi putunga putunga putunga para, kua rite ki te A13 sensor o to taatau kamupene mo te tono awheawhe ultrasonic.
Kei te whakamahi a YIHTONG i te hangarau sensor ultrasonic hei reo rapu, ka tukuna nga korero me nga raraunga i roto i te waahanga korero NB-IoT, me te aro turuki i te ahua o nga ipu paru kua tohatohahia ki te waahi mahi ma te whakakotahi me te papaaata aroturuki kapua GIS.
