PIR motion activated recordings or PIR motion detector cameras do exactly that.
#Outdoor pir sensor ip camera recorder software#
A larger capacity storage medium can also increase re-recording loop times, handle multiple camera recordings at once, and provide storage space for software programs and other necessary binary information.Īnother way to greatly improve the storage capacity and efficiency of the camera-DVR relationship is to only record what is necessary. There are several ways of improving efficiency in addition to using a CODEC. If the files are archived before hand the data could be lost. This is important because whenever storage capacity is reached, the newest digital video files are re-recorded over older digital video files. These utilities may be in the form of software or a hard-wired IC chip.ĬODECs greatly improve the storage capacity of any given drive, conserving on system memory.
To keep file sizes as small as possible without losing significant quality, COmpression/DECompression or CODEC utilities are used. Furthermore, the digital video files created by the cameras and stored on the DVRs are extremely large files.
#Outdoor pir sensor ip camera recorder portable#
The DVR usually consists of a hard disk drive, like the one in most personal computers and in miniature systems may consist of SD cards, small Integrated Circuit (IC) chips, or other portable non-volatile media.Įven though technology advancements are yielding larger capacity and more efficient storage devices, regardless of the type of storage on the DVR, the capacity is still finite. For example a typical motion activated recording system may have one or more motion activated digital video cameras, a Digital Video Recorder or DVR with a Digital Signal Processor or DSP, and an optional monitor. One of the biggest benefits of PIR motion activated recording is conservation of digital video security system resources. (Many cameras have an intermediary circuit that is programmed to shut the camera off after a time delay in addition to or after motion is no longer detected.) When the infrared signature in the camera’s field of view becomes constant, the sensor interprets this as non-motion and the relay switch is then open, shutting the circuit to the camera off. When the PIR detects motion, the relay is energized to the “On” position which turns on the camera and begins the process of recording. The PIR sensor on motion activated recording cameras is electronically connected to a relay switch. When a significant change in this infrared signature occurs (such as when a person, vehicle, or other object passes by) the PIR interprets this change in the infrared signature as motion.
This sensor constantly monitors the passive infrared signature of the camera’s field of vision.
The motion detector itself is called a PIR or Passive InfraRed sensor. Digital video security cameras equipped with motion detectors begin recording video when motion is detected and stop when motion is either no longer detected or after a designated (pre-programmed) time period. One of the most common ways to provide motion activated recording is to use a digital video camera with a built-in motion detector. In the following article, we’ll take a look at how digital video security and surveillance systems go about doing this and why conservation is a key term associated with this type of monitoring.ĭigital video camera security systems can initiate motion activated recording in different ways. Conservation is the key term in reference to motion activated recording.
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