Regarding the question of remote monitoring, the requirements of remote monitoring on the network

In practical applications, many units and households do not have a fixed IP address, and most of them use ADSL to access the Internet. However, many friends need to realize the remote monitoring function, and how to use the existing conditions of ADSL to achieve remote monitoring is one of the topics that have been consulted a lot recently. Here, we take the tplinkr860 router and 804 compression card as an example to introduce the application of dynamic domain name and the router setting method in detail

1. Application for dynamic domain name:

To access remotely, you must have a domain name that you can use, and we will now use the built-in DDNS related function of the TP-LINK410 router to apply for a dynamic domain name of our own

The Control Panel login dialog will appear: the default username and password are all admin

A method for remote monitoring and control using dynamic IP.

Prior to this, we have introduced the "assembly and debugging of industrial control DVR", "application of dynamic domain name and router setting method", here is only for the series of compression card in the software control interface of the setting is introduced, other compression card settings please refer to this article and the product manual of the compression card.

It should be reminded that in the software directory of the compression card, there is a professional "client" software, through which remote control and access can be achieved (please refer to the user manual for the setup and use of the client).

1. Confirm that the hardware and software of the monitoring system are running normally;

2. Confirm that the dynamic domain name application is successful, the router is set up normally, and the DNNS in the router has been successfully connected;

1. Confirm that the monitoring software needs to open the port:

Any compression card, in order to achieve remote monitoring and control, must open the corresponding port in the software and related hardware, some software needs to be open a lot, and some only need one. Generally, it will be indicated in the manual of the product, if not, we need to open the software ourselves to see the specific port number. Unless you specifically need to, use the default port number is fine:

Now, we open the monitoring software, click on the "Settings button", and then click on "Network Management":

Install remote monitoring software and install surveillance cameras.

In the case of CIF image quality, each picture on the host side needs 2M for D1. The client should be the same network operator, and the uplink rate should be the same as that of the host. The client parses and receives, and the host encodes and transmits.

Look at the network speed, for a sixteen-way host, the main problem is to look at the uplink speed of the network, the uplink network speed of 2m is theoretically about 200k, and the downlink is 70-80k. It is more than enough to cope with a 16-channel network hardware disk recorder! The main thing is to look at the uplink network speed of the network where the DVR is located.

Of course, the higher the network speed, the higher the uplink speed.

In addition to bandwidth problems, it is necessary to pay attention to whether it is cross-network, such as Tietong - Netcom, etc. It's best to use address resolution software that charges a fee.

If there are more than a dozen channels, the ordinary four-megabit bandwidth is enough.