| 子区域 | 开关状态及作用时间 | k值 
 | |||
| S1((1-k)Ta) | S2(Tb) | S3(Tc) | S4(kTa) | ||
| 1 | ONN | OON | OOO | POO | 
 | 
| 2 | OON | OOO | POO | PPO | 
 | 
| 3 | ONN | OON | PON | POO | 
 | 
| 4 | OON | PON | POO | PPO | 
 | 
| 5 | ONN | PNN | PON | POO | 
 | 
| 6 | OON | PON | PPN | PPO | 
 |