Device for storing a visual sequence in response to a warning signal on board a vehicle
First Claim
1. Device for storing a visual sequence following the transmission of a detection signal detected by a sensor (9) situated on board a stopped and/or parked vehicle, this device introducing at least one embarked camera (2, 3) for filming at a normal image rate the space surrounding the vehicle and for storing a sequence of images delivered by the camera (2, 3) for a predetermined period of time following said transmission so as to be able to display after impact the images taken by the camera (2, 3) during this period, characterised in that it includes a storage (5) and processing (4) electronic circuit able to provide a first operating mode when the vehicle is stopped and/or parked, said circuit including means:
- to transfer into a buffer memory images delivered by the camera during a predetermined period succeeding the transmission of the detection signal, to transmit an alarm signal to indicate that the sensor has transmitted a detection signal and that as a result a sequence of images concerning the circumstances of the impact is recorded in the buffer memory, to enable the driver to carry out a control action so as to provoke the transfer of the images contained in the buffer memory into the storage memory.
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Accused Products
Abstract
The invention concerns a recording and/or storage device comprising at least a camera (V1 to V4) mounted on the vehicle (20) and designed to deliver continuously a series of images and an electronic circuit (21) capable of transferring at every moment, into a buffer (23), the images delivered by the camera (V1 to V4) so that at every moment, said storage contains a sequence of images photographed by the camera for a predetermined time interval preceding said moment, and an impact sensor (25). The transfer of the data contained in the buffer (23), into a storage memory (24) for subsequent playback can be performed in response to a command carried out by the driver or optionally automatically following detection of an impact.
30 Citations
11 Claims
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1. Device for storing a visual sequence following the transmission of a detection signal detected by a sensor (9) situated on board a stopped and/or parked vehicle, this device introducing at least one embarked camera (2, 3) for filming at a normal image rate the space surrounding the vehicle and for storing a sequence of images delivered by the camera (2, 3) for a predetermined period of time following said transmission so as to be able to display after impact the images taken by the camera (2, 3) during this period, characterised in that it includes a storage (5) and processing (4) electronic circuit able to provide a first operating mode when the vehicle is stopped and/or parked, said circuit including means:
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to transfer into a buffer memory images delivered by the camera during a predetermined period succeeding the transmission of the detection signal, to transmit an alarm signal to indicate that the sensor has transmitted a detection signal and that as a result a sequence of images concerning the circumstances of the impact is recorded in the buffer memory, to enable the driver to carry out a control action so as to provoke the transfer of the images contained in the buffer memory into the storage memory. - View Dependent Claims (2, 3, 4, 5, 10, 11)
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6. Device for storing a visual sequence following the detection of an accident able to occur at a speed ranging from 0 to 200 km/h (or more) by a sensor (9) situated on board of a vehicle, said vehicle being equipped with at least one embarked camera (2, 3) for filming the space surrounding the vehicle, and an electronic processing circuit (4) able to transfer into a buffer memory (5, 6) the images delivered by the camera (1, 2) so that in a steady state at any moment this buffer memory contains a sequence of images taken by the camera (1, 2) during a predetermined period of time able to reach two minutes preceding this moment, the sensor (9) acting on said electronic circuit at the time an impact is detected so as to trigger the transfer of the data contained in the buffer memory into a storage memory in which said data is retained, as well as display means for displaying after impact the images contained in the storage area, characterised in that:
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the rate of images produced by the camera is at least 25 images/second so that the route covered by the vehicle between two successive images at a high speed in less than 2 m so as to validly restore the circumstances of the accident. The transfer of the data relating to each pixel between the camera and the buffer memory is carried out at each moment in real time in parallel without the use of any compression system requiring an inadmissible processing time at a rate able to reach at least 56 Mbits/second. The storage and processing circuit includes means able to associate with each image stored in the buffer memory certain parameters such as dating information and/or the speed of the vehicle and/or the condition of the brakes, this information being transferred into the storage memory at the same time as the images corresponding to them. The storage memory consists of a hard disk which has been designed to resist significant impacts and exhibit extremely short transfer times, the capacity of this storage memory being provided so as to be able to store several sequences of images. The display means have been designed so as to be able to carry out stoppages on images for displaying both the contents of an image and the instantaneous parameters associated with this image. - View Dependent Claims (7, 8, 9)
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Specification