The insurance company hope to have a camera to install in a Taxi or any vehicle so that when there is an events such as traffic accident or rubbery, especially if the driver died and can not defend for himself. Insurance company hope to save big money from waving of paying big insurance money by providing good evidence. Investigator will be able to tell if the driver is driving under influence of alcohol or not.

The camera will record 4 minutes of motion picture in Motion JPEG format in a 256Mb DRAM. User can choose VGA OR QVGA resolution and change frame rate from to  1  3  7  5  7.5  15 frame/sec. or 30sec a frame to maximize the recording time. A total of 3840 frame of high compression QVGA picture or 480 frame of low compression high quality VGA image can be recorded. The camera will last for 32 hours If running under slowest mode (1 frame/30sec.) in QVGA format. 　

A local control box can be hook up to the camera for review or retrieving of the image stored inside the memory, and modify the setting condition of the unit, such as day time, frame rate compression rate, .....  through I-OSD ( interactive on screen display control panel )

 The camera can be programmed to stop 2 minutes after receive a event trigger signal, such as air bag signal from  a car crush or micro switch signal from seat belt. A stream of motion picture for 2 min. before and 2 min. after events will be recorded to serve as evidence for investigation.

Another typical application can be done by programming the camera to record shorter time such as 4 sec. in a session, and trigger by a motion detector (such as a PIR or reed relay). Image 2 sec. before and 2 sec. after trigger  can them be recorded and them ready and wait for next trigger. These picture were them be accumulated till all 4 minutes of memory used up. The recording time for each trigger can be programmed to any length from fraction of 1/2 1/4 1/8 1/16 ....  to 1/96 of the total memory. user can later retrieve the condensed picture that is full of information instead of dull picture that is recorded by a legacy VCR. 

The camera is running on 12V DC supplied by car battery or AC adapter. In case main power is interrupted due to power black out or a car crash, all the picture stored in the SDRAM will survive for 24 hour or more depend on the size of the back up battery installed inside the camera.