Drive recorder for vehicle
First Claim
Patent Images
1. A drive recorder in a vehicle, the drive recorder comprising:
- a running state detector configured to output a running state signal depending on a running state of the vehicle;
an image pickup device configured to output an image signal indicative of conditions around the vehicle;
a position detector configured to output a position signal indicating a position of the vehicle;
a first memory having a memory capacity and configured to record during a first predetermined time period and to overwrite during a subsequent iteration of the first predetermined time period (i) running state signals outputted by the running state detector, (ii), image signals outputted by the image pickup device, and (iii) and position signals outputted by the position detector, the first predetermined time period being repeated;
a collision determination means for determining whether the vehicle has been involved in a collision based on the running state signal from the running state detector;
a saving device configured to save the running state signals the image signals and the position signals which are recorded in the first memory and associated with the collision, when the collision determination means determines that the vehicle has been involved in the collision;
a dangerous situation determination means for determining an occurrence of a dangerous driving situation based on the running state signal from the running state detector;
a second memory configured to record, each time the occurrence of the dangerous driving situation is determined, the running state signals, the image signals and the position signals which are transferred from the first memory with respect to a second predetermined time period associated with the each occurrence of the dangerous driving situation;
an approach determination means for determining whether the vehicle approaches a dangerous location based on (i) a position signal which is recorded in the second memory with respect to the each occurrence of the dangerous driving situation, and (ii) a position signal presently outputted by the position detector; and
a warning device configured to warn a driver of the vehicle when the approach determination means determines that the vehicle approaches the dangerous location.
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Accused Products
Abstract
A drive recorder stores information regarding a dangerous location where a vehicle collision or a dangerous driving situation occurred in the past. When it is determined that the vehicle approaches the dangerous location based on a position signal from a GPS receiver for detecting the present position of the vehicle, a warning is provided to the vehicle driver. According to the warning, the vehicle driver can recognize that the vehicle is approaching the dangerous location where the vehicle collision or the dangerous driving situation occurred in the past.
17 Citations
18 Claims
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1. A drive recorder in a vehicle, the drive recorder comprising:
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a running state detector configured to output a running state signal depending on a running state of the vehicle; an image pickup device configured to output an image signal indicative of conditions around the vehicle; a position detector configured to output a position signal indicating a position of the vehicle; a first memory having a memory capacity and configured to record during a first predetermined time period and to overwrite during a subsequent iteration of the first predetermined time period (i) running state signals outputted by the running state detector, (ii), image signals outputted by the image pickup device, and (iii) and position signals outputted by the position detector, the first predetermined time period being repeated; a collision determination means for determining whether the vehicle has been involved in a collision based on the running state signal from the running state detector; a saving device configured to save the running state signals the image signals and the position signals which are recorded in the first memory and associated with the collision, when the collision determination means determines that the vehicle has been involved in the collision; a dangerous situation determination means for determining an occurrence of a dangerous driving situation based on the running state signal from the running state detector; a second memory configured to record, each time the occurrence of the dangerous driving situation is determined, the running state signals, the image signals and the position signals which are transferred from the first memory with respect to a second predetermined time period associated with the each occurrence of the dangerous driving situation; an approach determination means for determining whether the vehicle approaches a dangerous location based on (i) a position signal which is recorded in the second memory with respect to the each occurrence of the dangerous driving situation, and (ii) a position signal presently outputted by the position detector; and a warning device configured to warn a driver of the vehicle when the approach determination means determines that the vehicle approaches the dangerous location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A drive recorder in a vehicle, the recorder comprising:
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a running state detector configured to output a running state signal depending on a running state of the vehicle; a position detector configured to output a position signal indicating a position of the vehicle; a first memory having a memory capacity for storing during a first predetermined time period and overwriting during a subsequent iteration of the first predetermined time period (i) running state signals outputted by the running state detector and (ii) position signals outputted by the position detector, the first predetermined time period being repeated; a second memory configured to store data transferred from the first memory; and a processor configured to determine an occurrence of a dangerous driving situation based on the running state signal from the running state detector; transfer signals stored in the first memory to the second memory, when each occurrence of the dangerous driving situation is determined, the transferred signals being running state signals and position signals with respect to a second predetermined time period ranging before and after the each occurrence of the dangerous driving situation, extract a position signal at a time, when the each occurrence of the dangerous situation is determined, among the transferred position signals of the second predetermined time period recorded in the second memory, save, in a list, a plurality of extracted position signals in association with a number of extractions of each of the extracted position signals while incrementing the number of extractions of the each of the extracted position signals when a position signal indicating a location identical to a location indicated by the each of the extracted position signals is newly extracted, and determine whether the vehicle approaches a dangerous location based on the extracted position signals in the list and a position signal presently outputted by the position detector; and a warning device configured to warn, when it is determined that the vehicle approaches the dangerous location, a driver of the vehicle depending on the number of extractions with respect to the extracted position signal indicating the dangerous location, wherein the processor is further configured to start a count of an elapsed time when the number of extractions relative to the each of the extracted position signals is updated, and decrement the number of extractions when the number of extractions is not updated until the elapsed time reaches a predetermined term. - View Dependent Claims (15, 16, 17, 18)
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Specification