Dual-Channel Electronic Nose for Stable Gas Detection

The gas intake system is segmented into multiple independent channels (first gas intake channel and second gas intake channel), each capable of independent control. This allows the system to selectively draw gas from different locations or conditions, enabling continuous detection coverage while maintaining accuracy by choosing the most appropriate channel for each detection task.

Different gas intake channels are designed with different characteristics (e.g., one channel may be positioned for ambient air intake while another is for targeted gas sampling). Each channel has optimized local properties suitable for specific detection scenarios, allowing the system to maintain high detection accuracy across various operational conditions while preserving continuous detection capability.

The patent extracts and removes the complex air purification device from the system, replacing it with a simpler multi-channel gas intake approach. By taking out the heavy purification equipment and using controlled gas sampling from different channels instead, the system achieves acceptable detection accuracy while maintaining suitability for mobile robot applications with limited space and weight constraints.

Instead of using expensive and bulky air purification devices, the system employs simpler, more compact gas intake channels that can be easily integrated into mobile robots. The system accepts that complete purification is not always necessary, and uses selective gas sampling from controlled channels to achieve sufficient detection accuracy for practical applications.