surveillance system
Học thuậtThân thiện
Definition
Noun: A surveillance system is a coordinated set of devices and procedures designed for the continuous, systematic observation of a place, person, or group, typically for the purpose of influencing, managing, directing, or protecting them. Its core function is to gather information through monitoring.
Usage
A surveillance system is used to describe the entire apparatus for monitoring. It is often discussed in contexts of security, law enforcement, safety, and data collection. * The bank upgraded its surveillance system to include high-definition cameras and motion sensors. * Public health officials implemented a new surveillance system to track the spread of the virus. * The building's surveillance system recorded the entire incident.
Advanced Usage
- Electronic surveillance system: A system that uses electronic devices like cameras, microphones, or data interceptors.
- The embassy's electronic surveillance system was compromised.
- Under surveillance: A state of being watched by such a system. (This is a related common phrase, not a variant of the target word itself).
- The suspect's house was placed under surveillance.
Variants and Related Words
- Surveillance (n): The act of observing or the condition of being observed. This is the root concept.
- Constant surveillance is a feature of life in the secure facility.
- CCTV system (n): Closed-circuit television system, a common type of visual surveillance system.
- Monitoring system (n): A broader term that can include surveillance but also applies to technical processes, networks, or patient health.
Synonyms
- Observation system: A more neutral term focusing on the act of watching.
- Monitoring network: Emphasizes interconnected components.
- Security system: A broader term where surveillance is often a key component.
Related Phrases
- Surveillance camera: A key component of many visual surveillance systems.
- Surveillance footage: The video recorded by a surveillance system.
- Mass surveillance: The pervasive surveillance of an entire or substantial population.
Noun
- a closed-circuit television system used to maintain close observation of a person or group