English to Spanish Tech/Engineering Automation & Robotics surveillance system

Translation context: "Although these techniques enable many useful functions, including tailgate detection, counting people passing through a region, and detecting an intruder in a forbidden area, other surveillance functions are needed to secure a building."

I also found on interet... "A tailgate detection system offers an additional level of security for your facility during staffed or non-staffed hours. When used in conjunction with the entry-door access system from ProVision, it ensures that only one person can enter the facility for each valid card swipe. The tailgate detection is also integrated with your CCTV system. When a tailgate violation occurs, a log is created and the DVR records with more frames per second for easier video review. "

But I am not sure if it is the same...

Thanks in advance!