The visualization of 3-D temperature field in furnace is very important in the combustion control of the boiler, and it can assist operators to have combustion diagnosis and fault analysis, improve the security and economical efficiency of the boiler while decreasing the emission of contamination.
The system employed a double redundant CPU (Central Processing Unit) hot standby and double power supply design. As the hardware structure is simple and the control logic is realized by a trapezoid graphic software instead of the original relay control logic, the safety and reliability of the system has been greatly enhanced. In the meantime a small turbine emergency-trip first-out memory function is additionally designed in the control logic software, thereby providing a basis for fault analysis of the system.
In many network management applications, likepost-mortem fault analysis or performance trendsprofiling, it is advantageous to have the ability toview the state of the network as it was at some time in the past.
Crosstalk Induced Fault Analysis and Test in DRAMs
Repeated applications of state and fault analysis, vector generation and compaction produce significantly high fault coverage using relatively small computing resources.
Since each IDDQ measurement takes significant time, a hierarchical fault analysis methodology is proposed for selecting a small subset of production test vectors for IDDQ measurements.
It is demonstrated in this paper that the techniques used for this purpose in other approaches of analog fault diagnosis like fault analysis and fault verification are not in general suitable for the fault dictionary approach.