Q:What is the difference between a network video encoder and a hard disk video recorder? And bolt machine cameras are the same as security monitoring? What kind of network video encoder used

Network video coding is a professional network transmission device for compressing and processing audio and video data. Mainly to provide video compression or decompression function to complete the image data acquisition or recovery, the current more popular MPEG-4 or H.264-based image data compression through the Internet network to transmit data and audio data processing. And the same bolt, belong to security products. Suitable for viewing images monitored by the camera over the network.

Q:What kind of material is needed to install the surveillance camera?

3, each camera installed 12V transformer one. About 15-25 yuan / month

Q:Dvr monitor the video recorder without image output is what the problem

If the format is only the system disk, then the system, monitoring software must be reloaded, set; VCR is the embedded host, format only to clear the video data, the system program and settings are stored in the motherboard chip So there is no need to reset it.

Q:Monitor there is a camera monitor can not see, but the playback can see, how is it?

2, may be the front of the camera connection problems, you can check the next video cable and power cord connection.

Q:What is the meaning of the camera function heartbeat?

In the previous case, the implementation steps are as follows: 1, in a unified authentication system to open a "heartbeat" thread, the timing of the implementation of a visit A system operation, access to the A system S interface; 2, A system to achieve an interface S, Function for each access to an access request, then record a record of access, for example: 2009-3-18 fw 3, System A also need to also open a "heartbeat" thread, not separated by a certain time, access to the interface S is done Visit the record to see if the last record of the old record logo, if not, then prove that the single point of the system has the latest "heartbeat" came, its function is no fault.

Q:Hai Kangwei as the camera mapping problem

If the phone also want to monitor the settings, then, this one must be indispensable. Open the phone settings, and then must remember to monitor the port Yo

Q:I said is the monitoring of the camera, not what home with the camera, you can monitor the leader can also record the software, or hardware did not?

Of course, just add a pickup on the line.

Q:What is the difference between a camera and a monitor?

Camera digital camera The wide range of cameras, the basic principles of its work are the same: the optical image signal into electrical signals, in order to facilitate storage or transmission. When we shoot an object, the light reflected on the object is collected by the camera lens, focusing it on the light receiving surface of the camera (such as the target surface of the camera tube), and then through the imaging device to light into electricity, that is, "Video signal". Photoelectric signal is very weak, need to be pre-amplifier circuit to enlarge, and then through a variety of circuits for processing and adjustment, the final standard signal can be sent to the recorder and other recording media recorded, or spread through the transmission system or sent to the monitor display.

Q:Will a 12V10A switching power supply with a few 12V2A surveillance camera? How far can its DC current output? Please have experienced master answer, thank you

12V10A switching power supply with 5 12V2A surveillance camera.

Q:What is the difference between monitoring the camera and the usual?

Monitoring the installation of the camera, generally need to use a few meters to tens of meters ranging from the transmission distance, but in accordance with the provisions of the USB standard, USB device, the longest transmission distance is 5 meters, so USB can not be used for long distance, that is, we use USB camera to do the first problem encountered monitoring. While the 75-5 / 128 video cable can transmit signals over long distances! (Up to 400 meters).