井下人员及设备定位系统应用方案

�

�

�

�

1
R

�

2
�
�
�

3
1
2
3
4
5
6
�
7
8

�

�

�
�

A
B
C

�
1
2
3
4

�
�

�&
�

�
�

�
�
�


�

1
�