DETECTING DEVICE, IMAGE FORMING APPARATUS, COMPUTER PROGRAM PRODUCT, AND DETECTING SYSTEM
First Claim
1. A detecting device comprising:
- a measuring unit that measures a rotating speed of at least one of connected gears;
a calculating unit that calculates frequency characteristics for the rotating speed measured by the measuring unit;
a detecting unit that detects a period of fluctuation of the rotating speed measured by the measuring unit;
a determining unit that determines whether the connected gears include a damaged gear by using the frequency characteristics calculated by the calculating unit; and
an identifying unit that, if the determining unit determines that the connected gears include a damaged gear, identifies a gear whose rotation period corresponds to the period detected by the detecting unit as the damaged gear among the connected gears.
1 Assignment
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Accused Products
Abstract
A detecting device includes: a measuring unit that measures a rotating speed of at least one of connected gears; a calculating unit that calculates frequency characteristics for the rotating speed measured by the measuring unit; a detecting unit that detects a period of fluctuation of the rotating speed measured by the measuring unit; a determining unit that determines whether the connected gears include a damaged gear by using the frequency characteristics calculated by the calculating unit; and an identifying unit that, if the determining unit determines that the connected gears include a damaged gear, identifies a gear whose rotation period corresponds to the period detected by the detecting unit as the damaged gear among the connected gears.
21 Citations
11 Claims
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1. A detecting device comprising:
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a measuring unit that measures a rotating speed of at least one of connected gears; a calculating unit that calculates frequency characteristics for the rotating speed measured by the measuring unit; a detecting unit that detects a period of fluctuation of the rotating speed measured by the measuring unit; a determining unit that determines whether the connected gears include a damaged gear by using the frequency characteristics calculated by the calculating unit; and an identifying unit that, if the determining unit determines that the connected gears include a damaged gear, identifies a gear whose rotation period corresponds to the period detected by the detecting unit as the damaged gear among the connected gears. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer program product comprising a non-transitory computer readable medium including programmed instructions, wherein the instructions, when executed by a computer, cause the computer to execute:
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measuring a rotating speed of at least one of connected gears; calculating frequency characteristics for the rotating speed measured at the measuring; detecting a period of fluctuation of the rotating speed measured at the measuring; determining whether the connected gears include a damaged gear by using the frequency characteristics calculated at the calculating; and identifying, if it is determined at the determining that the connected gears include a damaged gear, a gear whose rotation period corresponds to the period detected at the detecting as the damaged gear among the connected gears.
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11. A detecting system for detecting damage to connected gears, comprising:
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a device that includes the connected gears and an output unit that outputs a signal in accordance with rotation of at least one of the connected gears; a measuring unit that measures a rotating speed of at least one of the connected gears in accordance with the signal output from the output unit; a calculating unit that calculates frequency characteristics for the rotating speed measured by the measuring unit; a detecting unit that detects a period of fluctuation of the rotating speed measured by the measuring unit; a determining unit that determines whether the connected gears include a damaged gear by using the frequency characteristics calculated by the calculating unit; and an identifying unit that, if the determining unit determines that the connected gears include a damaged gear, identifies a gear whose rotation period corresponds to the period detected by the detecting unit as the damaged gear among the connected gears.
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Specification