公开(公告)号：US08386862B2

公开(公告)日：2013-02-26

申请号：US12707938

申请日：2010-02-18

申请人： Hisashi Terae ,  Masakazu Ishikawa ,  Yasuyuki Furuta ,  Katsumi Yoshida ,  Atsushi Nishioka ,  Yasuhiro Kiyofuji ,  Takenori Kasahara ,  Syuichi Nagayama ,  Fujiya Kawawa ,  Manabu Kubota ,  Tatsuyuki Ootani ,  Hidechiyo Tanaka

发明人： Hisashi Terae ,  Masakazu Ishikawa ,  Yasuyuki Furuta ,  Katsumi Yoshida ,  Atsushi Nishioka ,  Yasuhiro Kiyofuji ,  Takenori Kasahara ,  Syuichi Nagayama ,  Fujiya Kawawa ,  Manabu Kubota ,  Tatsuyuki Ootani ,  Hidechiyo Tanaka

IPC分类号： G01R31/28 ,  G01R27/28 ,  G01R31/00 ,  G01R31/14 ,  H03M13/00 ,  H04L1/00 ,  G08C25/00 ,  G06F11/00 ,  G06F11/22 ,  G06F17/50

CPC分类号： G05B19/0425 ,  G05B2219/21137 ,  G05B2219/24069 ,  G05B2219/25435

摘要： A fault diagnosis apparatus and method capable of simultaneously detecting the fault of a multiplexer and the fault of an A/D converter and isolating and identifying causes of these faults, the multiplexer and the A/D converter being used in a multi-channel analog input/output circuit. Test-voltage values are inputted from a diagnosis-voltage input unit into the multiplexer and the A/D converter constituting an analog-signal conversion unit, the multiplexer having plural channels, the A/D converter converting outputs from the multiplexer into digital signals, the test-voltage values being different from each other for each channel of the multiplexer. Comparisons are made between the digital voltage values and the test-voltage values inputted, the digital voltage values being outputted for each channel of the multiplexer. From this comparison result, it is judged whether the multiplexer is at fault or the A/D converter is at fault.

摘要翻译： 一种故障诊断装置和方法，其能够同时检测多路复用器的故障和A / D转换器的故障，并且隔离和识别这些故障的原因，多路复用器和A / D转换器用于多通道模拟输入 /输出电路。 测试电压值从诊断电压输入单元输入到多路复用器和构成模拟信号转换单元的A / D转换器，多路复用器具有多个通道，A / D转换器将来自多路复用器的输出转换为数字信号， 对于多路复用器的每个通道，测试电压值彼此不同。 在数字电压值和输入的测试电压值之间进行比较，为多路复用器的每个通道输出数字电压值。 根据该比较结果，判断多路复用器是否故障或A / D转换器故障。

公开(公告)号：US20100235699A1

公开(公告)日：2010-09-16

申请号：US12707938

申请日：2010-02-18

申请人： Hisashi TERAE ,  Masakazu Ishikawa ,  Yasuyuki Furuta ,  Katsumi Yoshida ,  Atsushi Nishioka ,  Yasuhiro Kiyofuji ,  Takenori Kasahara ,  Syuichi Nagayama ,  Fujiya Kawawa ,  Manabu Kubota ,  Tatsuyuki Ootani ,  Hidechiyo Tanaka

发明人： Hisashi TERAE ,  Masakazu Ishikawa ,  Yasuyuki Furuta ,  Katsumi Yoshida ,  Atsushi Nishioka ,  Yasuhiro Kiyofuji ,  Takenori Kasahara ,  Syuichi Nagayama ,  Fujiya Kawawa ,  Manabu Kubota ,  Tatsuyuki Ootani ,  Hidechiyo Tanaka

IPC分类号： G01R31/3177 ,  G06F11/25

CPC分类号： G05B19/0425 ,  G05B2219/21137 ,  G05B2219/24069 ,  G05B2219/25435

摘要： A fault diagnosis apparatus and method capable of simultaneously detecting the fault of a multiplexer and the fault of an A/D converter and isolating and identifying causes of these faults, the multiplexer and the A/D converter being used in a multi-channel analog input/output circuit. Test-voltage values are inputted from a diagnosis-voltage input unit into the multiplexer and the A/D converter constituting an analog-signal conversion unit, the multiplexer having plural channels, the A/D converter converting outputs from the multiplexer into digital signals, the test-voltage values being different from each other for each channel of the multiplexer. Comparisons are made between the digital voltage values and the test-voltage values inputted, the digital voltage values being outputted for each channel of the multiplexer. From this comparison result, it is judged whether the multiplexer is at fault or the A/D converter is at fault.

摘要翻译： 一种故障诊断装置和方法，其能够同时检测多路复用器的故障和A / D转换器的故障，并且隔离和识别这些故障的原因，多路复用器和A / D转换器用于多通道模拟输入 /输出电路。 测试电压值从诊断电压输入单元输入到多路复用器和构成模拟信号转换单元的A / D转换器，多路复用器具有多个通道，A / D转换器将来自多路复用器的输出转换为数字信号， 对于多路复用器的每个通道，测试电压值彼此不同。 在数字电压值和输入的测试电压值之间进行比较，为多路复用器的每个通道输出数字电压值。 根据该比较结果，判断多路复用器是否故障或A / D转换器故障。