Data management apparatus and method for surveillance system
First Claim
Patent Images
1. A data management apparatus, comprising:
- a first storage unit configured to store therein data provided from a data input unit;
a second storage unit configured to store therein a copy of the data; and
a control unit configured to control the first storage unit to store the data therein on a real time basis, and if the data stored in the first storage unit is equal to or larger than a predetermined threshold amount that is less than a storage capacity of the first storage, generate the copy and control the second storage unit to store the copy in the second storage unit as much as a given amount,wherein the control unit is configured to overwrite the copy in the order in which the copy has been generated in given data units or file units if a capacity of the second storage unit is insufficient to store another data.
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Abstract
Provided are a data management apparatus and a data management method for a surveillance system. The data management apparatus includes: a first storage unit configured to store therein data provided from a data input unit; a second storage unit configured to store therein a copy of the data; and a control unit configured to control the first storage unit to store the data therein on a real time basis, and if the data stored in the first storage unit is equal to or larger than a predetermined threshold amount, generate the copy and control the second storage unit to store the copy in the second storage unit as much as a given amount.
6 Citations
20 Claims
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1. A data management apparatus, comprising:
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a first storage unit configured to store therein data provided from a data input unit; a second storage unit configured to store therein a copy of the data; and a control unit configured to control the first storage unit to store the data therein on a real time basis, and if the data stored in the first storage unit is equal to or larger than a predetermined threshold amount that is less than a storage capacity of the first storage, generate the copy and control the second storage unit to store the copy in the second storage unit as much as a given amount, wherein the control unit is configured to overwrite the copy in the order in which the copy has been generated in given data units or file units if a capacity of the second storage unit is insufficient to store another data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 19, 20)
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11. A data management method comprising:
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storing data provided from a data input unit in a first storage medium on a real time basis; if the data stored in the first storage medium is equal to or larger than a predetermined threshold amount that is less than a storage capacity of the first storage, storing a copy of the data in a second storage medium as much as a given amount; if a capacity of the second storage medium is insufficient to store another copy of another data, overwriting the copy in the order in which the copy has been generated in given data units or file units; and if there is a user'"'"'s reproduction request, searching for latest data in the first storage medium and searching for old data in the second storage medium. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification