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タイムラプス監視と衝撃監視、動体監視の違い

Difference between time-lapse monitoring, impact monitoring, and motion monitoring

24-hour time-lapse monitoring

Mirror-camProThe "time-lapse constant monitoring" employed in the "24-hour time-lapse monitoring" system allows for up to 24 hours of continuous recording.

Time-lapse" is a recording method that drops frames to record about once per second.

The reason for time-lapse instead of regular recording is to reduce both data and power consumption.

Many people misunderstand that if you use a 32 GB SD card, theMirror-camPro.recording high quality data for three cameras, such as the Pro

Of course, if you are driving, this is still not a problem, as the system will automatically overwrite the oldest data first.

However, if you want to record continuously for a long period of time, such as when parking, a few hours are not enough, especially at night.
Also, 24 hours of continuous normal recording will use a lot of power and run up the battery.

By using time-lapse recording, the data can be reduced to 1/60 to 1/90 of the original data. This also reduces power consumption.

 

In addition to time-lapse monitoring, there are also drive recorders with impact detection and motion detection monitoring systems.

However, these are not always reliable for surveillance purposes.

In the case of shock detection, a reasonably large vibration is required. In other words, they cannot be used for accidents where the driver is only lightly hit or scratched by a 10-yen coin.

In the case of motion detection, the motion must be within the range of the motion detection sensor. In other words, if it is in the blind spot, it cannot respond to the accident. Many products have motion detection sensors attached only to the main body of the vehicle, which means that they cannot respond to an accident at the rear of the vehicle.

A common weakness of both impact and motion sensors is that it is difficult to capture the moment of an accident due to the way they work.
In other words, the system is activated only when it detects an impact or some kind of movement due to an accident. There is a time lag of at least several seconds between the startup and the start of recording. Therefore, it is possible that the decisive moment of an accident cannot be captured, and recording only begins after the other party has fled.

For this reason, time-lapse continuous monitoring is the best for surveillance.
However, since the battery will be drained to a certain extent, it is recommended to always start the engine after use and turn off time-lapse recording when it is not needed.

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