Data recording system, program, semiconductor device, and drive recorder

Abstract

The invention provides a data recording system, an information storage medium, a semiconductor and a travelling recorder. The data recording system includes: a trigger generation section that generates a plurality of triggers each of which are generated when the trigger generation section has detected an event that is to be recorded, a data acquisition section that performs a data acquisition process that acquires and stores the input data in a first storage section, and a data storing section. The data storing section reads first storing-target data corresponding to a first trigger of the plurality of triggers from the first storage section and stores the first storing-target data in a second storage section, the first storing-target data having been acquired within a target period that is a predetermined period beginning at a first time before the generation of the first trigger and ending at a second time after the generation of the first trigger. The data storing section sets a subsequent trigger reception period after the first trigger has been generated. The data storing section stores second storing-target data corresponding to a second trigger of the plurality of the triggers in the first storage section when the second trigger has been generated within the subsequent trigger reception period. The data storing section reads the second storing-target data from the first storage section and stores the second storing-target data in the second storage section.

Description

technical field [0001] The invention relates to a data recording system, an information storage medium, a semiconductor device and a driving recorder. Background technique [0002] In order to acquire image data of a moving body such as a motor vehicle when an accident occurs, a drive recorder mounted on the moving body is known. [0003] As a driving recorder technology, multiple image data acquired by the camera unit in time series are stored in the main memory in sequence, and when an accident is detected, the images acquired and stored in the main memory during the specified period before the accident occur A technique for storing data in an auxiliary memory (nonvolatile external storage medium) is known (refer to Japanese Patent Application Laid-Open No. 10-250642). According to this, since the image data acquired during the predetermined period before the occurrence of the accident can be stored in the auxiliary memory, the progress of the accident can be ascertained....

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned system cannot obtain data for subsequent collisions in the case of multiple collisions, such as a serial collision accident

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