security checking alarm works on which principle ?
Answers
Answer:
Home security systems work on the simple concept of securing entry points into a home with sensors that communicate with a control panel or command center installed in a convenient location somewhere in the home.
The sensors are typically placed in doors that lead to and from a house as well as easily accessible windows, particularly any that open, especially those at ground level. Open spaces inside of homes can be secured with motion sensors.
Control Panel: The control panel is the computer that arms and disarms the security systems, communicates with each installed component, sounds the alarm when a security zone is breached, and communicates with an alarm monitoring company.
They typically feature a touchpad for easy programming and interaction, is where pass codes are entered to arm and disarm the system, can work on voice commands, and can be programmed to work with wireless remote controls called key fobs.
Door and Window Sensors: Door and window sensors are comprised of two parts installed adjacent to each other. One part of the device is installed on the door or window and the other on the door frame or window sill. When a door or window is closed, the two parts of the sensor are joined together, creating a security circuit.
When the security system is armed at the control panel, these sensors communicate with it by reporting that the point of entry is secure. Should a monitored door or window suddenly be opened, the security circuit is broken and the control panel interprets this as a breach of a secured zone. A high-decibel alarm is sounded and in most instances the alarm monitoring company is automatically notified.
Motion Sensors: These security components, when armed, protect a given space by creating an invisible zone that cannot be breached without sounding an alarm. These are typically used to protect rooms containing valuables, as well as areas less frequented in larger homes.
Surveillance Cameras: Available in both wired and wireless configurations, surveillance cameras can be used in several different ways as part of an overall security system.
Typical uses include monitoring:
Hard to see or distant areas of your property
Remote buildings like garages, barns, and workshops
Entry points, both exterior and interior, like garage doors and front doors
Surveillance cameras can be accessed remotely on computers, smartphones, and tablets. They are often used in this method when homeowners are out of town, to watch for deliveries and other service personnel like caregivers and landscapers, and to monitor the arrival of children after school. They can also be used to record any security breaches, which could result in having footage of a home invasion, including a good look at the burglars and perhaps even the vehicle they drove.
Answer:
A security alarm is a simple electronic device that works on the principle of detection of uninterrupted light waves. Some typical types of security alarm systems are using infra red light source and sensor detector to maintain high level of security.
Explanation:
It does not involve any rocket science. The working principle can be easily explained using a simple diagram…..that I have also attached here along with this article.
The source of light (LASER) is reflected directly at the edges and diverted using simple plane mirrors along the corners. At the other end a photo detector is set up that is also connected to a security alarm system.
Till the photo detector receives uninterrupted source of light it does not go off. The moment this supply of light is interrupted, the circuit is break and the alarm is immediately set on alarming others. the alarm is usually in the form of a buzzer that is connected across the circuit.
Details of diagram….attached along with the files.
