Data recovery system and data recovery program recorded medium
First Claim
1. A data recovery system comprising:
- storage means for storing data;
an information center for backing up said data;
detection means for detecting unusable data stored in said storage means;
request means for requesting said information center to send the original data to replace said unusable data; and
adjustment means for adjusting a timing of a request made by said request means, according to an urgency of recovery of said unusable data.
1 Assignment
0 Petitions
Accused Products
Abstract
The present system executed data recovery without affecting other operations in the event that some recorded data has failed. In a database installed on a motor vehicle, program data, map data and the like used to carry out navigation are stored. If any set of these data has failed, a controller evaluates the urgency of recovery of the failed data set. For example, the urgency of recovery is evaluated by determining whether the failed data is part of a program in current use or whether it is map data scheduled to be used directly before long. Even if lower priority data in terms of the urgency of recovery has failed, the request for data recovery is issued at an appropriate delay timing instead of immediately requesting the information center to send that data, so that the influence of the data recovery on normal operation can be decreased.
30 Citations
14 Claims
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1. A data recovery system comprising:
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storage means for storing data;
an information center for backing up said data;
detection means for detecting unusable data stored in said storage means;
request means for requesting said information center to send the original data to replace said unusable data; and
adjustment means for adjusting a timing of a request made by said request means, according to an urgency of recovery of said unusable data. - View Dependent Claims (2)
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3. A data recovery system comprising:
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storage means for storing data;
an information center for backing up said data;
detection means for detecting unusable data stored in said storage means;
request means for requesting said information center to send the original data to replace said unusable data; and
adjustment means for adjusting a timing of a request made by said request means, according to an urgency of recovery of said unusable data;
wherein said adjustment means evaluates said urgency of recovery based on a type of said unusable data.- View Dependent Claims (4, 5, 6, 7)
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8. A data recovery system, comprising:
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storage means for storing data;
an information center for backing up said data;
detection means for detecting unusable data stored in said storage means;
request means for requesting said information center to send the original data to replace said unusable data; and
adjustment means for adjusting a timing of a request made by said request means, according to an urgency of recovery of said unusable data;
wherein said adjustment means evaluates said urgency of recovery based on a geographical location attribute of said unusable data.- View Dependent Claims (9, 10, 11, 12)
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13. A data recovery system for motor vehicle use comprising:
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storage means mounted on a motor vehicle for storing data;
detection means mounted on the motor vehicle for detecting unusable data stored in said storage means;
request means mounted on the motor vehicle for requesting an information center to send the original data to replace said unusable data;
locating means mounted on the motor vehicle for locating the current position of the vehicle; and
adjustment means mounted on the motor vehicle for evaluating the urgency of recovery of said unusable data, based on the relationship between the geographical location attribute of said unusable data and said current position of the vehicle, and for adjusting the timing of a request made by said request means, according to said evaluation result.
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14. A computer readable medium on which a data recovery program is recorded to execute data recovery by obtaining original data to replace failed data from an information center, said program causing the computer to perform the following steps:
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detecting said failed data;
determining the urgency of recovery of said failed data; and
requesting the information center to send original data to replace said failed data at a timing in compliance with said urgency of recovery.
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Specification