April 07, 2023

Topology monitoring

Topology monitoring

Topology 1

Topology monitoring

Topology 2

Topology monitoring

Topology 3

Topology monitoring

Topology 4

Hello everyone! It's been a long time since I updated, so today I'm here to share something dry! Let's take a look at these monitoring topologies. Let's go!

Topology 1

This topology is used for scenes with low numbers, such as: small shops (3-4 in number), convenience stores, etc. Typically, number of cameras is less than 16. Personally, I do not recommend choosing this if number of cameras exceeds plan 8. The advantages and disadvantages of this topology are as follows:

Benefits:

  1. The dash cam is equipped with a POE power supply, so there is no need to purchase an additional POE switch, which reduces costs.

Weaknesses:

  1. Typically, maximum number of cameras that can be connected is 16, and scalability is poor.
  2. All network cables are connected to back of DVR. If there are too many network cables, repairs in cabinet will be problematic.
Topology 2

This topology is main current decision and is generally applicable to all scenarios. The advantages and disadvantages of this topology are as follows:

Benefits:

  1. The DVR is used with a POE switch, which can select number of cameras flexibly and is highly scalable.
  2. Basically, all network cables converge at switch, so troubleshooting is relatively easy.

Weaknesses:

  1. Increase in equipment costs.
Topology 3

This topology does not currently use this solution. The advantages and disadvantages of this scheme are as follows:

Benefits:

  1. Hardware overhead is relatively low

Weaknesses:

  1. Wiring must pull power and network cables at same time, which increases material and labor costs.
  2. Due to use of a self-contained power supply, probability of a point of failure increases and time spent on maintenance increases.
Topology 4

This topology is currently largely unused. The advantages and disadvantages are as follows:

Benefits:

  1. Hardware overhead is relatively low

Weaknesses:

  1. Wiring must pull power and network cables at same time, which increases material and labor costs.
  2. Due to use of a centralized power supply, failure rate of centralized power supply is relatively high, and maintenance cost is relatively high.

These topologies are relatively common, and of course there are more detailed topological solutions out there! Did you get anything after studying these topological structures? Follow me, Xiaobai will show you more monitoring knowledge

Related

Latest Published