Zobrazeno 1 - 1
of 1
pro vyhledávání: '"radio frequency distance control"'
Publikováno v:
Meikuang Anquan, Vol 51, Iss 6, Pp 138-141 (2020)
The multiple identification system for coal miners entering well based on low-frequency trigger is proposed. By combining 2.4 GHz with 125 kHz, the data is transmitted at 2.4 GHz and the signal distance control is realized at 125 kHz. By using low-fr
Externí odkaz:
https://doaj.org/article/904c86a7b5ea462ba7a1c5e2d69d243b
