摘要:
In a watt-hour meter, encoders 116, 117, 118 and 119 respectively convert a signal concerning a current and voltage used by a customer into a code sequence signal by Reed-Solomon codes or convolutional codes. Decoders 121, 122, 123, and 124 reversely convert the code sequence signal to the signal concerning the current and voltage. A power calculating section 125 converts the signal concerning the current and voltage into data concerning electricity consumption.
摘要:
A clock diagnosis circuit includes: a delay circuit to delay the clock by a prescribed time which is not more than the clock pulse width; an integral multiplication delay circuit to delay a delayed clock outputted from the delay circuit by a prescribed number of cycles; a first exclusive OR circuit to encode the clock using the delayed clock; a second exclusive OR circuit to decode an output of the first exclusive OR circuit using an output of the integral multiplication delay circuit; and a comparison circuit to compare the clock with an output of the second exclusive OR circuit to thereby detect a malfunction of the clock.
摘要:
A first arithmetic operator (11) includes a first modular arithmetic coding encoder (11b) for encoding a numeric data transmitted by a command from a central controller (31) into a modular arithmetic code, a first arithmetic operation processor (11a) using the numeric data as modular arithmetic coded as an input operand, for executing an arithmetic operation based on a command from the central controller (13), to provide an output in the form of a modular arithmetic code, and a first modular arithmetic code decoder (11c) for determining presence or absence of a bit error in the numeric data output from the first arithmetic operation processor, correcting the bit error, if detected any, to output a decoded numeric data.
摘要:
A clock diagnosis circuit includes: a delay circuit to delay the clock by a prescribed time which is not more than the clock pulse width; an integral multiplication delay circuit to delay a delayed clock outputted from the delay circuit by a prescribed number of cycles; a first exclusive OR circuit to encode the clock using the delayed clock; a second exclusive OR circuit to decode an output of the first exclusive OR circuit using an output of the integral multiplication delay circuit; and a comparison circuit to compare the clock with an output of the second exclusive OR circuit to thereby detect a malfunction of the clock.
摘要:
The embodiments provide a failure diagnosis method for a main memory in an information processing device equipped with a write-back cache. According to the method, an application program stored in the main memory is divided by the storage size of write-back cache, and the regions are stored in advance. Then, a read signal from the main memory to the write-back cache is detected. It is determined whether the region corresponding to the read signal has yet to be diagnosed. If the region has yet to be diagnosed, a command to diagnose failure of the region is issued. If a write signal (write back) to a particular region is detected during the diagnosis of the particular region, the diagnosis of the particular region is stopped. Thus, the failure diagnosis of the main memory is executed in parallel with the execution of the application program.
摘要:
A gas appliance judgment apparatus and method by which a type of gas appliance in use and the existence of a gas leak can be identified. In operation, noise is removed from measured instantaneous flow volume, whereupon the “length”, “initial flow volume” and “sequence of transited regions” of the variable portion of the flow volume and the “length”, “average value” and “gradient” of the flat portion of the flow volume are extracted. A rule having characteristics data which matches the characteristics of the variable portion and the flat portion of the flow volume is then searched, and points are added respectively for the type of gas appliance and for the existence of a gas leak. When the added points are not less than a previously established threshold value, then the type of gas appliance in use is determined, and appliance type information is output as a judgment result.
摘要:
For a control apparatus to be boundary scan testable even when running, including processor cores in an operator to be capable of self-repairing a troubling part, an operator (2) has processor cores (2a, 2b) connected to a boundary scan bus (12), and adapted to mutually diagnose opponent processor cores for troubles, by boundary scan testing each other in a time-dividing manner.
摘要:
In a watt-hour meter, encoders 116, 117, 118 and 119 respectively convert a signal concerning a current and voltage used by a customer into a code sequence signal by Reed-Solomon codes or convolutional codes. Decoders 121, 122, 123, and 124 reversely convert the code sequence signal to the signal concerning the current and voltage. A power calculating section 125 converts the signal concerning the current and voltage into data concerning electricity consumption.
摘要:
A control device includes a diagnostic pulse signal generating section having an internal circuit that generates control data and generates diagnostic pulse data for diagnosing the operating terminal and diagnoses the function of the signal line and the operating terminal from the waveform of a feedback signal of the diagnostic pulse signal; a variable amplification circuit that multiplexes the diagnostic pulse signal on the control signal and sends the result to the operating terminal with a preset signal level; and a receiving circuit that receives the feedback signal and sends it to the internal circuit. The internal circuit comprises a correction pulse data generating section that corrects the diagnostic pulse data by correcting the rise time of the diagnostic pulse signal. Even if the length of the signal line is long, the diagnostic pulse signal reception can be achieved without expanding the pulse width of the diagnostic pulse signal.
摘要:
According to the present invention, mistaken detection of a gas leak can be prevented even when using an appliance which has been newly installed in a dwelling receiving a gas supply, and whereby a gas leak can be detected rapidly, efficiently and accurately. The characteristics extraction means 5 extracts characteristics of a gas flow including a combination of the instantaneous flow volume data and the instantaneous flow volume time differential value, on the basis of the data obtained by the flow volume measurement means 1, pressure measurement means 2, instantaneous flow volume time differential operation means 3 and pressure time differential operation means 4. The leak detection means 7 compares the characteristics data for respective types of gas appliance or for a gas leak registered in the storage means 6 with the characteristics extracted by the characteristics extraction means 5, and if a matching is not achieved, further judges whether there is a flow volume variation or nozzle variation, and whereby it judges whether there is a gas leak or whether an unregistered appliance is in use. If occurrence of a gas leak, the warning means 9 issues a warning. If an unregistered appliance is in use, the characteristics data forming the basis of the judgment is registered as a new characteristics data in the storage means 6 by the characteristics data registration means 8.