The phrase "human intervention" refers to the act of people getting involved or interfering with a situation or process. It means that humans are taking action to change or influence the outcome of something.
The system can run indefinitely and collect data without human intervention because of wireless communication and power transmission. (sciencedaily.com)
This strange mapping speaks to both the wonders and perils of human intervention in nature. (gallerieswest.ca)
However «safety drivers» are present because the vehicles still require frequent human intervention in many conditions or bad weather. (inc.com)