Abnormality detecting system for automated guided vehicle
US-2015175028-A1 · Jun 25, 2015 · US
Abnormality detecting system for automated guided vehicle
US9346370B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9346370-B2 |
| Application number | US-201314418567-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 31, 2013 |
| Priority date | Aug 2, 2012 |
| Publication date | May 24, 2016 |
| Grant date | May 24, 2016 |
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Abstract
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A system for detecting an abnormality of an automated guided vehicle that travels on a circulation route includes: a history recording unit for recording a change history of a current of a battery of the automated guided vehicle with respect to each circulation; and an abnormality determining unit for determining presence or absence of an abnormality of the automated guided vehicle on the basis of the change history of the current of the battery recorded for each circulation.
First claim
Opening claim text (preview).
The invention claimed is: 1. An abnormality detecting system for an automated guided vehicle, the system detecting an abnormality of the automated guided vehicle that travels on a circulation route, the abnormality detecting system comprising: a history recording unit for recording a change history of a current of a battery of the automated guided vehicle with respect to each circulation, the change history indicating fluctuations of the battery current; and an abnormality determining unit for determining a presence or absence of an abnormality of the automated guided vehicle on the basis of the change history of the current of the battery recorded for each circulation of the automated guided vehicle on the circulation route. 2. The abnormality detecting system for an automated guided vehicle according to claim 1 , wherein the abnormality determining unit determines a presence or absence of an abnormality of the automated guided vehicle by comparing the change history in a most recent circulation of the automated guided vehicle with the change history in a preceding circulation before the most recent circulation. 3. The abnormality detecting system for an automated guided vehicle according to claim 1 , wherein the abnormality determining unit determines a presence or absence of an abnormality of the automated guided vehicle by comparing the change history in a most recent circulation of the automated guided vehicle with an average change history of preceding circulations excluding the most recent circulation. 4. The abnormality detecting system for an automated guided vehicle according to claim 1 , wherein there are multiple automated guided vehicles, and wherein the abnormality determining unit determines a presence or absence of an abnormality of one automated guided vehicle that completes a most recent circulation by comparing the change history of the one automated guided vehicle with a change history of another automated guided vehicle. 5. The abnormality detecting system for an automated guided vehicle according to claim 1 , wherein there are multiple automated guided vehicles, and wherein the abnormality determining unit determines a presence or absence of an abnormality of one automated guided vehicle that completes a most recent circulation by comparing the change history of the one automated guided vehicle with an average change history of an other group of automated guided vehicles. 6. The abnormality detecting system for an automated guided vehicle according to claim 1 , wherein the change history of the current of the battery is a history of a change in a current integrated quantity in a traveling interval of each circulation of the automated guided vehicle.
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Classifications
Monitoring the performance of the system, e.g. alarm or diagnosis modules · CPC title
Operations & Transport · mapped topic
- B61B13/00Primary
Other railway systems · CPC title
- G05B23/0224Primary
Process history based detection method, e.g. whereby history implies the availability of large amounts of data · CPC title
- B60L11/1861Primary
Operations & Transport · mapped topic
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- What does patent US9346370B2 cover?
- A system for detecting an abnormality of an automated guided vehicle that travels on a circulation route includes: a history recording unit for recording a change history of a current of a battery of the automated guided vehicle with respect to each circulation; and an abnormality determining unit for determining presence or absence of an abnormality of the automated guided vehicle on the basis…
- Who is the assignee on this patent?
- Nissan Motor
- What technology area does this patent fall under?
- Primary CPC classification B61B13/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 24 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).