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:I press the Zhongwei monitoring, power and camera are good, that is not seen friends

Try to re-install the software to see, it is not possible to consider contact with the peacekeeping century (Baidu look) ask customer service.

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

General 2 * 1 power line transmission 300 meters is no problem.

Q:How to use the network cable to connect the surveillance camera?

2, some camera is a digital camera, direct use of cable digital transmission of video, cameras and video recorders are connected through the network cable on the switch, are transmitted through the network video.

Q:Home wireless surveillance camera price, how much money?

Home monitoring equipment is a co-ordination concept, because at this stage of China's domestic monitoring equipment without a clear distinction, the traditional analog monitoring system can also be used as a home monitoring equipment; now high-definition wireless network camera can also be used as a home monitoring equipment. Therefore, for different monitoring systems, the price of its home monitoring equipment is not the same.

Q:What is the number of lines that a surveillance camera needs to use?

If it is a network camera is a network cable on it, the network camera to install the pickup, audio, video signals transmitted through the network.

Q:57 Road 1080P surveillance video requirements to store a month, how much hard disk space?

Need 91T or so hard drive, high-definition quite occupied hard disk, 720P basic to a small half,

Q:Monitor the farthest distance from the camera can be far, which manufacturers out

Wave particles surveillance camera high-speed dome camera up to 36 times zoom, the details of the furthest to see 200 meters should be no problem, the outline of 500 meters is no problem.

Q:P2p wireless monitoring camera how to achieve remote monitoring

Each mobile phone to install APP, IP address, dynamic domain name or P2P code (including cloud view) can be entered into the APP settings.

Q:Monitor 32 video recorders how to take 80 way camera

If you do not require the picture quality can be used to split the screen to the four screen into a road inside, reasonable arrangements can also see more than 80 cameras, but the video is four pictures can not be a separate screen.