Apparatus for measuring response time, system for measuring response time and method for measuring response time

Patent metadata

Field	Value
Publication number	US-9933755-B2
Application number	US-201414478164-A
Country	US
Kind code	B2
Filing date	Sep 5, 2014
Priority date	Sep 28, 1920
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

Example embodiments relate to a response time measurement apparatus, a response time measurement system and a response time measurement method for measuring a response output time from a facility corresponding to an input signal, and more particularly, a response time measurement apparatus, a response time measurement system and a response time measurement method in which the output display of a facility is captured through a capture device to detect an output time on the basis thereof.

First claim

What is claimed is:

1. A response time measurement apparatus, comprising:
a transceiver configured to receive capture information from a capture device for capturing an output screen of a measurement facility; and
a controller configured to apply a test signal to the measurement facility through the transceiver, and detect an output time, the output time being a time at which a response corresponding to the test signal is displayed on the output screen based on the capture information, the controller further configured to measure a response time of the measurement facility based on the output time, wherein
the capture information comprises a plurality of images consecutively captured by the capture device and time information for each captured image, and
the controller is configured to detect an output image displayed with an output corresponding to the test signal among the plurality of images, the controller is further configured to detect the time information for the output image, and subtract a time at which the test signal is applied by the controller from a time at which the output image is captured by the capture device to measure the response time of the measurement facility.

2. The response time measurement apparatus of claim 1 , wherein the test signal is a control signal for inducing a desired output to be displayed on the output screen of the measurement facility.

3. The response time measurement apparatus of claim 1 , wherein the capture device is configured to consecutively capture the plurality of images from a time at which the test signal is applied by the controller.

4. The response time measurement apparatus of claim 1 , wherein the capture device is configured to capture the output image at a same time as the output time.

5. The response time measurement apparatus of claim 1 , wherein the controller is configured to control the capture device and the transceiver.

6. The response time measurement apparatus of claim 1 , wherein the controller is configured to determine whether there is an error in the response time and repeat the measurement of the response time.

7. A response time measurement apparatus, comprising:
a transceiver configured to receive capture information from a capture device for capturing an output screen of a measurement facility; and
a controller configured to apply a test signal to the measurement facility through the transceiver, and detect an output time, the output time being a time at which a response corresponding to the test signal is displayed on the output screen based on the capture information, the controller further configured to measure a response time of the measurement facility based on the output time, wherein the capture information comprises a plurality of images of the output screen consecutively captured by the capture device from a time at which the test signal is applied by the controller, and the capture information further comprising time information for each captured image, and
the controller is configured to detect a screen change image, the screen change image having a change on the output screen among the plurality of images, the controller is further configured to detect the time information for the screen change image, and subtract a time at which the test signal is applied by the controller from a time at which the screen change image is captured by the capture device to measure the response time of the measurement facility.

8. The response time measurement apparatus of claim 7 , wherein the controller is configured to detect the screen change image based on an image prior to the change occurring on the output screen.

9. The response time measurement apparatus of claim 7 , wherein the time at which the screen change image is captured is the same as the output time.

10. A response time measurement apparatus, comprising:
a transceiver configured to receive capture information from a capture device for capturing an operation of a measurement facility; and
a controller configured to apply a test signal to the measurement facility through the transceiver, and detect an operation generation time at which a response corresponding to the test signal is generated by the operation of the measurement facility based on the capture information, the controller further configured to measure a response time of the measurement facility based on the operation generation time, wherein the capture information comprises a plurality of images of the measurement facility consecutively captured by the capture device from a time at which the test signal is applied by the controller, and the capture information further comprising time information for each captured image, and
the controller is configured to detect an operation image associated with an operation corresponding to the test signal among the plurality of images and the time information for the operation image, and the controller is further configured to subtract a time at which the test signal is applied by the controller from a time at which the operation image is captured by the capture device to measure the response time of the measurement facility.

11. The response time measurement apparatus of claim 10 , wherein the measurement facility is a facility for performing a mechanical operation.

12. The response time measurement apparatus of claim 10 , wherein the test signal is a control signal for inducing a desired operation of the measurement facility.

13. A method of measuring a response time, the method comprising:
applying a test signal to a measurement facility;
capturing, by a capturing device, a response, the response corresponding to the test signal being displayed on an output screen of the measurement facility;
detecting an output time from the capture device based on the captured response,
generating capture information containing the output time;
receiving the capture information from the capture device;
detecting the output time contained in the capture information; and
measuring a response time of the measurement facility based on the output time, wherein said capturing a response consecutively captures the output screen to generate a plurality of images and time information for each captured image,
one of said detecting the output time from the capture device and said generating capture information detects an output image displayed with an output corresponding to the test signal among the plurality of images and time information for the output image, and detects an output time based on the time information for the output image, and
said measuring the response time subtracts a time at which the test signal is applied from the output time to measure the response time of the measurement facility.

14. The method of claim 13 , wherein said capturing the response consecutively captures the output screen from a time at which the test signal is applied to generate a plurality of images and time information for each captured image, and
one of said detecting the output time from the capture device and said generating capture information detects a screen change image having a change on the output screen among the plurality of images and time information for the screen change image and detects the output time based on the time information for the screen change image, and
said measuring the response time subtracts a time at which the test signal is applied from the output time to measure the response time of the measurement facility.

Assignees

• Lee Sam Won
• Doosan Heavy Ind & Construction Co Ltd

Inventors

• Lee Sam Won

Classifications

• H04N17/04

  for receivers · CPC title

• G06F11/3485

  for I/O devices · CPC title

• G05B23/0256

  injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system · CPC title

• G04F10/00 Primary

  Apparatus for measuring unknown time intervals by electric means · CPC title

• G06F11/3419 Primary

  by assessing time · CPC title