Team:PKU Beijing/Project/Design
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(→The Logic Design of our Project) |
(→The Logic Design of our Project) |
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Let’s consider the system as a black box. It can receive two inputs, one represents the ring stimulus, the other represents food stimulus. The output represents saliva. The food stimulus alone can cause salivation, while the ring stimulus alone can’t. After training the system with both ring and food, the concurrence information of the two stimuli is memorized by the memory module. Once the memory is generated, ring stimulus alone can also cause salivation. | Let’s consider the system as a black box. It can receive two inputs, one represents the ring stimulus, the other represents food stimulus. The output represents saliva. The food stimulus alone can cause salivation, while the ring stimulus alone can’t. After training the system with both ring and food, the concurrence information of the two stimuli is memorized by the memory module. Once the memory is generated, ring stimulus alone can also cause salivation. | ||
- | [[Image:PKU_Prelim_1.JPG| | + | [[Image:PKU_Prelim_1.JPG|500px|center|thumb|fig1. Consider the system as a black box]] |
Let’s consider each function of the system. Firstly, the food stimulus alone can lead to salivation. We lead the food signal directly to the output module. Then, because when memory exists, ring can also cause salivation, so we need an AND Gate to combine the memory and the ring signal, output of the AND Gate also leads to salivation. Because the output of the AND Gate and the food signal both leads to salivation, they need to pass an OR Gate before the final salivation output. After that, we need another AND Gate to detect the concurrence of the two signals, and convert it to memory. | Let’s consider each function of the system. Firstly, the food stimulus alone can lead to salivation. We lead the food signal directly to the output module. Then, because when memory exists, ring can also cause salivation, so we need an AND Gate to combine the memory and the ring signal, output of the AND Gate also leads to salivation. Because the output of the AND Gate and the food signal both leads to salivation, they need to pass an OR Gate before the final salivation output. After that, we need another AND Gate to detect the concurrence of the two signals, and convert it to memory. | ||
- | [[Image:PKU_Logic_Circuit.png|500px|center|thumb]] | + | [[Image:PKU_Logic_Circuit.png|500px|center|thumb|fig2. Logic Circuit of the System]] |
As shown above, the modules together, makes the functional system. | As shown above, the modules together, makes the functional system. |
Revision as of 12:09, 12 October 2009
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