Portable sequential affair signal generating device
An event signal and generator technology, applied in the direction of motor generator testing, etc., can solve problems such as fault analysis and judgment difficulties, failure to provide event sequence signals, etc., and achieve the effects of enhancing anti-interference ability, increasing flexibility, and stable performance
Inactive Publication Date: 2010-02-17
ZHEJIANG UNIV
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However, when a fault occurs, a large number of signals will be generated one after another. When the resolution of the event sequence cannot meet the requirements, the correct event sequence signal cannot be provided, which brings difficulties to the analysis and judgment of the fault.
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[0025] Further illustrate the specific implementation and working principle of described portable sequential event (abbreviation SOE) signal generator below in conjunction with accompanying drawing:
[0026] Such as figure 1 As shown, the main control circuit in the portable sequential event (SOE) signal generator is respectively connected with the keyboard input circuit, liquid crystal display circuit, host computer interface circuit, and output buffer circuit, and the output buffer circuit is connected with the output correction, amplification and isolation circuits. connect.
[0027] Such as figure 2 As shown, the internal connection relationship of the main control circuit is: CPU and watchdog circuit, timer circuit, clock circuit, high 8-bit address interface circuit, data\low 8-bit address latch circuit, control signal interface circuit, serial Interface circuit, I 2 The C interface circuit is connected, and the data\low 8-bit address latch circuit is connected with ...
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The invention discloses a portable sequence event signal generator. A main control circuit of the signal generator is respectively connected with a keypad input circuit, an LCD display circuit, a hostcomputer interface circuit and an output buffer circuit, wherein the output buffer circuit is connected with an output correction, amplification and isolation circuit. The invention can provide a series of sequence discrete event signals with arbitrarily adjusting time interval, which are mainly used for testing the resolution and reliability of a discrete event sequence recording system, breaking sequence recording and fault wave recording equipment, etc. The software includes a main program, a man-machine interface program and a plurality of interrupt programs. The invention can be widely applied in key fields of industrial systems such as electric power, petroleum, chemical engineering and metallurgy. The fields are mostly provided with event sequence recording system, breaking sequence recording system, fault wave recording equipment, etc., and the signal generator is used for testing the equipment to ensure the reliable operation of the equipment.
Description
technical field [0001] The invention relates to a signal generator, in particular to a portable sequential event signal generator. Background technique [0002] Event sequence signal resolution is a very important indicator for failure analysis of major equipment such as generator sets. When important equipment such as generator sets fails, the staff must first analyze the sequence of fault signals. However, when a fault occurs, a large number of signals will be generated one after another. When the resolution of the event sequence cannot meet the requirements, the correct event sequence signal cannot be provided, which brings difficulties to the analysis and judgment of the fault. [0003] There are relevant documents and results of event sequence signal resolution testing at home and abroad. The 11th issue of "Power Automation Equipment" in 2005 introduced the use of FX event sequence-32 signal generator by Anhui Electric Power Research Institute to detect events in the DC...
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IPC IPC(8): G01R31/34
Inventor 屈稳太
Owner ZHEJIANG UNIV