Find a 45 point surveillance video scheme

It's similar to our factory, in fact, you're very simple, and a hard disk recorder is 16 channels in Building A.

Building B put a 16-channel DVR, in short, put the nearest monitoring point, enough for 45 points. It seems that the minimum three 16-channel DVRs, our units are also 16-channel DVRs. As for the engineering wiring, you enter a misunderstanding - do not need to consider how far the monitoring point is from the monitoring room, mainly consider how far away all the monitoring points are from the DVR, the DVR can be placed in any position, not necessarily in the monitoring room, so, your project is not a big project, if you consider the funds, there is no need to find a project across optical fibers and the like.

It is no problem to connect the camera directly to the farthest 100 meters** line, however, the power cord should consider the power attenuation, and you can use a DC power supply with a little more power. Finally, all the monitoring points are connected to the DVR, and the DVR is then connected to the LAN, so that the monitoring room can be connected to this monitoring system through the LAN no matter where it is.

The video of A is transmitted to Building B in real time using the local area network.

However, the records of A should also be local in case the network is interrupted.

The monitoring from point A is transmitted to point B, the distance is long, and it can be connected by computer. Transmission with fiber optics** is cheaper. And a fiber can transmit a lot of signals, you can use a single line to do signal transmission, you need more than 40 lines, first of all, the cost is high, the construction is troublesome.

The transmission with optical fiber is low, the installation and construction is very convenient, you didn't say that the main monitoring room is at point A or point B, you just said that point B requires all to see. If the main monitoring room is at point A, point B is required to be seen. It is more cost-effective to use optical fiber.

If you choose to use ** for network LAN transmission, it is not real-time.

I agree with the statement that the second floor uses optical fiber, and the distance of six or seven hundred meters is too laborious to be constructed with ** line, and optical fiber saves money and time. It is better to use a 16-channel DVR, which eliminates the cost of subsequent maintenance of the host.

In a previous engineering networking diagram, the monitoring room is placed with a box-type optical terminal unit, and all points are connected through optical fiber, and then monitored through the local area network. Video recording equipment with three 16-channel DVRs.

I have a CCTV project, a word document, hi me.

A gigabit switch is set up in the computer room, and the optical fiber + optical fiber transceiver is connected to point A (with a gigabit switch) In this place, all the network cameras are connected into a local area network using optical fiber or switches, and the tree structure network is used.

The IP camera has the same wiring without PTZ, and the 485 has been integrated into the network transmission.

The computer room switch and aggregation switch require an all-gigabit enterprise, after all, a transmission speed of about 60 ms is required, and 100 megabits is not enough.

Network cable Category 5 is good.

There is also a way to use a wireless microwave bridge. The overall architecture is similar, except that the optical fiber is replaced by wireless.

But using wireless is required.

1 The wireless point is visible.

2 Requires some expertise to architect.