I want to learn community intelligent system and network integration system.

You don't need to buy books. There are many things about intelligence and system integration. You can learn one system at a time, and you can understand it by searching for information online. Not very technical.

For example, the monitoring system is the front camera+line transmission+control part (DVR, lightning protection and interference prevention)+rear display part. The structure is probably known, and the other is the development history of equipment parameters and monitoring. There's hardly anything to understand.

There are also background music systems, parking lot systems, building access control systems, etc. , are all about the same. The intelligent part is mainly because there are too many manufacturers without fixed standards, so the technology is not very deep.