Image processing apparatus
View Patent ↗An image processing apparatus has a main processing section that outputs an image processing command signal; an anomaly detection section that detects an anomaly in the main processing section, outputting an anomaly information output signal; an image processing section that outputs a first image signal when the main processing section is in normal operation and that outputs a second image signal when an anomaly has occurred in the main processing section; and an image selection section that selects either the first image signal or the second image signal on the basis of the anomaly information output section.
1. An image processing apparatus comprising:
a main processing section configured to output an image processing command signal;
an anomaly detection section configured to detect an anomaly in the main processing section on the basis of the image processing command signal and output an anomaly information output signal which shows whether or not the main processing section is anomalous; and
an image processing section configured to
take the anomaly information output signal and the image processing command signal as input signals,
perform image processing on the basis of information of the image processing command signal when the anomaly information output signal represents that the anomaly detection section has not detected an anomaly, and
perform image processing independent of the image processing command signal when the anomaly information output signal represents that the anomaly detection section has detected an anomaly.
2. The image processing apparatus according to claim 1 , further comprising memory configured to store the image processing command signal and the anomaly information output signal in an associated manner.
3. The image processing apparatus according to claim 1 , further comprising a sound processing section configured to perform processing so as to output sounds conforming to the anomaly information output signal output from the anomaly detection section.
4. An image processing apparatus comprising:
a main processing section configured to output a watchdog signal and an image processing command signal;
an anomaly detection section configured to detect an anomaly in the main processing section on the basis of the watchdog signal, outputting an anomaly information output signal which shows whether or not the main processing section is anomalous; and
an image processing section configured to
take the anomaly information output signal and the image processing command signal as input signals,
perform image processing on the basis of information of the image processing command signal when the anomaly information output signal represents that the anomaly detection section has not detected an anomaly, and
perform image processing independent of the image processing command signal when the anomaly information output signal represents that the anomaly detection section has detected an anomaly.
5. The image processing apparatus according to claim 4 , wherein the anomaly detection section detects an anomaly in the main processing section on the basis of the watchdog signal and the image processing command signal.
6. An image processing apparatus comprising:
a main processing section configured to output an image processing command signal;
an anomaly detection section configured to detect an anomaly in the main processing section on the basis of the image processing command signal, outputting an anomaly information output signal which represents whether or not the main processing section is anomalous;
an image processing section configured to output in parallel a first image signal which is acquired by performing image processing on the basis of the image processing command and a second image signal independent of the image processing command signal; and
an image selection section configured to select, on the basis of information represented by the anomaly information output section, any one of the first image signal and the second image signal input from the image processing section, outputting the selected signal, wherein
the image selection section selects the first image signal when the anomaly information output signal shows that the anomaly detection section has not detected an anomaly and selects the second image signal when the anomaly information output signal shows that the anomaly detection section has detected an anomaly.
7. The image processing apparatus according to claim 6 , wherein the image processing section periodically outputs a monitor input signal when in normal operation;
the image processing apparatus has a watchdog section configured to determine occurrence of an anomaly in the image processing section on the basis of whether or not the monitor input signal is input, outputting a signal showing a determination result;
the anomaly detection section detects an anomaly in the image processing section on the basis of a signal output from the watchdog section, outputting an alarm image signal;
and
the image selection section outputs the alarm image signal when the alarm image signal is input.
8. The image processing apparatus according to claim 7 , further comprising memory configured to store a signal output from the watchdog section and the alarm image signal in an associated manner.
9. The image processing apparatus according to claim 6 wherein a displayed image provided by the second image signal is a white image, a black image, an image showing an alarm display, or an image showing malfunction of the image processing apparatus.
10. An image processing apparatus comprising:
a main processing section configured to output a watchdog signal showing an operating status and an image processing command signal;
an anomaly detection section configured to detect an anomaly in a main processing section on the basis of the watchdog signal, outputting an anomaly information output signal which shows whether or not the main processing section is anomalous;
an image processing section configured to output in parallel a first image signal which is acquired by performing image processing on the basis of the image processing command and a second image signal independent of the image processing command signal; and
an image selection section configured to select, on the basis of information represented by the anomaly information output section, any one of the first image signal and the second image signal input from the image processing section, outputting the selected signal, wherein
the image selection section selects the first image signal when the anomaly information output signal shows that the anomaly detection section has not detected an anomaly and selects the second image signal when the anomaly information output signal shows that the anomaly detection section has detected an anomaly.
11. The image processing apparatus according to claim 10 , wherein the anomaly detection section detects an anomaly in the main processing section on the basis of the watchdog signal and the image processing command signal.
12. The image processing apparatus according to claim 5 , wherein the image processing section periodically outputs a monitor input signal when in normal operation;
the image processing apparatus has a watchdog section configured to determine occurrence of an anomaly in the image processing section on the basis of whether or not the monitor input signal is input, outputting a signal showing a determination result;
the anomaly detection section detects an anomaly in the image processing section on the basis of a signal output from the watchdog section, outputting an alarm image signal;
and
the image selection section outputs the alarm image signal when the alarm image signal is input.
13. The image processing apparatus according to claim 10 , wherein a displayed image provided by the second image signal is a white image, a black image, an image showing an alarm display, or an image showing malfunction of the image processing apparatus.