| 摘要 |
A switch detection system (100) includes a first switch (102) having a pole node (153), a normally closed contact (160), and a normally open contact (161), the pole node (153) of the first switch (102) connected to a voltage source node (104), a second switch (102) having a pole node (153), a normally closed contact (160) and a normally open contact (161), the pole node (153) of the second switch (102) connected to the normally closed contact (160) of the first switch (102), a voltage detector (106) connected to the normally closed contact (160) of the second switch (102), a first resistor (108) connected to the normally open contact (161) of the first switch (102), and a second resistor (108) connected to the normally open contact (161) of the first switch (102) and the normally open contact (161) of the second switch (102). |
| 主权项 |
1. A switch detection system comprising:
a first switch having a pole node, a normally closed contact, and a normally open contact, the pole node of the first switch connected to a voltage source node; a second switch having a pole node, a normally closed contact and a normally open contact, the pole node of the second switch connected to the normally closed contact of the first switch; a voltage detector connected to the normally closed contact of the second switch; a first resistor connected to the normally open contact of the first switch; a second resistor connected to the normally open contact of the first switch and the normally open contact of the second switch; and a processor having a first connection connected to the pole node of the first switch and a second connection connected to the first resistor;wherein the processor is configured to:
determine a voltage across the first connection of the processor and the second connection of the processor; determine a voltage drop across the connections of the processor; and calculate a number of resistors in series between the first connection of the processor and the second connection of the processor. |
