What is the role of Open Frame?

Open Frame is a main board for power processing. The power processing methods are diversified according to the subsequent circuit requirements, such as: input and output types: alternating current (AC), direct current (DC), pulse, high voltage, low voltage, high frequency, low frequency , single-channel, multi-channel, etc. Transformation type: boost, buck, constant voltage, constant current, linear, nonlinear controllable. Circuit mode: coil coupling type transformer, electronic device type switching power supply.

What are the functions of Monitor High Production Open Frame?

What are the related functions of Monitor High Production Open Frame?

What are the functions of Monitor High Production Open Frame?

The monitoring function is one of the most important functions of the Monitor High Production Open Frame. Whether the camera can be monitored in real time and clearly is a core issue of the monitoring system. At present, most of the Monitor High Production Open Frame can be real-time and clear. surveillance;

Video: The video effect is the core and vitality of the digital host. You can see real-time and clear images on the monitor. The recording and playback effect is not necessarily good, and the most important forensic effect depends on the video effect. In general, the video effect more important than monitoring effects. Most DVRs can record at 25 frames per second in real time. Some video recorders have less than 5 frames per second in total. Usually, the resolution is CIF or 4CIF. One camera needs about 180MB~1GB for one hour of recording. hard disk space.

What are the related functions of Monitor High Production Open Frame?

Network function: Through simple identification of local area network or wide area network, various monitoring and video control operations can be performed on the host computer, which is equivalent to local operation;

Password authorization function: In order to reduce the failure rate of the system and illegal entry, passwords are required for programs such as stopping recording, arming and disarming the system, and entering programming, so that unauthorized persons cannot operate, generally divided into multi-level password authorization systems;

Work schedule: It is possible to program the work time for a certain time period of a certain camera, which is also a unique function of the digital host. It can pre-arrange the changes of holidays and work and rest timetables into the program, which can be in a certain sense. Realize unattended.

What is the role of Open Frame?

Open Frame is to open and close high-speed through the circuit control switch tube. The direct current is converted into high frequency alternating current and supplied to the transformer for transformation, thereby generating the required one or more sets of voltages. The function of the input loop is to rectify and filter the AC input voltage into a smooth high-voltage DC voltage; the function of the power converter is to convert the high-voltage DC voltage into a high-frequency pulse voltage with a frequency greater than 20k Hz; the function of the rectifier and filter circuit is to convert the high-frequency The pulse voltage is converted into a stable DC output voltage; the function of the Open Frame is to sample the output DC voltage to control the width of the driving pulse of the power switching device, so as to adjust the turn-on time to make the output voltage adjustable and stable.

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