An intercom (intercommunication device or talk back is a standalone communication device used within a building, organization, apartments etc functioning independently from the public telephone network. These systems are used for communication within the building and can also be connected to the public network, EPABX systems or access control systems.
Some intercom systems incorporate control of devices such as signal lights and door latches.
Some but not all intercom systems are also attached to security systems, allowing for access control functions within the intercom itself.
Some Basic Intercom Systems include –
Master Station or Base Station – These are units that control the complete intercom system. The master station can connect with all the intercom systems under it and also make an announcement such that it reaches to the entire system.
Sub Station – Intercom systems that can connect or contact only the master station are Sub Stations. They cannot contact other intercom systems except the master station.
Door Station – These systems like substations can only contact the the master station. They are usually fixed at the door of an office or home and are typically weatherproof.
Intercom Station – Systems that can initiate contact with all other systems. But unlike Master Station they cannot connect with all systems at the same time and make announcements. They may be permanent, wall mounted or portable systems.
Permanent Systems – These are completely made of analogue equipments. Many schools, organizations and household use the permanent intercom systems.
Wall Mount Stations – Fixed position systems generally fixed to the wall with flush mounted microphone, push and talk microphone or hand held phone set.
Belt Pack – These are closed circuit systems usually worn by an individual on the belt line with a connecting earpiece.
Handset – Portable intercom system which does not have a headset connected. Functions like a walkie talkie.
Amplifier- An intercom systems main or central component that is responsible for switching or connecting communication paths between master and substations
There are simple house intercom systems developed for collective apartments, different departments of organizations etc. Some are equipped with audio, video and other features and maybe wired or wireless systems.
Intercom systems are available according to user needs, features and preferences.
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Video Door Phones are intercom systems that are used to make calls from the entrance of a building so as to communicate with visitors without any physical interaction and engage with them only if you wish to. Video Door Phones not only increase home security, when integrated with the home automation system but also are of great convenience. If the Video Door Phones have a remote control it makes moving around convenient.
BENEFITS OF VIDEO DOOR PHONES –
Video Door Phones help in interacting with your customers without necessarily opening the door. You can know their purpose of visit without them entering the house and avoid having a face to face communication.
Having video door phones in your home increases security. Being selective of your customers and choosing to interact with your visitors leads to increase in security.
With a video doorbell, you can answer your front door even when you’re not home. When someone rings the doorbell, it activates a camera connected to an app on your smart phone or tablet, and you can both see who rang your doorbell and remotely “answer” and speak to the visitor.
The user can also record videos to know who visited when they were not at home by reviewing them.
According to the system you choose video door phones have superior HD video quality where the visitors can communicate without any disturbances.
Video Door Phones are easy to install. Especially wireless video door phones which are easy to use and install.
Video door entry systems are commonly found integrated with different access control systems which makes it user friendly.
Camera quality is also of superior quality according to the system the customer chooses. The more the cameras width of surveillance, more the area covered.
Video Door Phones have different features like touch screen operations, adjustable brightness, contrast and volume, low power consumption, superior video quality, infra red capabilities, microphones etc
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Security is something very essential and important in today’s world. For beginners this can be initially confusing when looking to decide the right security system with so many available options ranging from CCTV Cameras to home automation and other systems. What features are most important, or more to the point, what features will be most important for your security needs?
Do you want or need security cameras?
Video Resolution: Video Resolution is very important to consider while selecting a security camera. The higher the megapixel of the camera the better the resolution and the more clear image and video available. Camera resolution will also factor into how much hard drive space you’ll need to archive your footage. Analog Cameras are less expensive but lack the fine detail that high definition cameras have.
Lenses: Most of the cameras that beginners or users buy have static and fixed range lenses. Specific security cameras consist of lenses which have the ability to go from a wide angle to a closer shot, and can be sometimes be controlled though the interface of a DVR or NVR, through a web browser, and others. It is important because it allows you to zoom or magnify certain objects or places. There are also interchangeable lenses available in the market.
Infrared: Ensure that your security camera have built in infrared beams around the camera lens which send a strong beam of infrared light. These infrared beams switch on automatically when it gets dark or during low light. It is important as most of the thefts and robberies take place during the night time. It is an essential feature to look for while selecting security cameras.
Wireless or Wired: Security cameras are either wireless or wired. The Wireless systems are difficult to install and maintain compared to the wired systems.
Field of View: Field of View refers to the width of area a camera can record. This is important because it will affect how many cameras you’ll need and where you should place them.
Motion Detection: Security cameras with the motion detection feature send notifications to your mobile or any other device alerting you to suspicious activity.
Sound Feature: The sound feature can refer to your camera receiving sound via a microphone, emitting sound via a speaker, or both.
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Security is the top priority in today’s world in all types of places. From public places to government buildings to residential areas, security systems are been installed for more safety.
Schools and Educational Institutions are also to be secured like all the other places. A properly installed system of school security systems is important for ensuring safety on school premises. Schools facing challenges such as violence or vandalism on campus find school security cameras an indispensable aid to identifying and resolving issues as they arise.
One of the main reasons of installing security systems in schools is school violence. There is always some sort of violence occurring in schools these days and we never know when something could happen in a school in your community. Therefore, it is essential to do everything that you can to make sure that the schools in your area are as safe as possible.
There are many ways of securing and ensuring the safety of students in schools which include –
Security Surveillance Cameras can be installed in public areas like cafeterias, administrative offices, gymnasiums, outdoor playgrounds, sports fields and corridors. Cameras can also catch thieves,vandals, and bullies in the act, allowing the school to positively identify all parties involved and see exactly what happened.
Cameras mounted near main entrances and in administrative offices can help you record each visitor as they enter and exit your school. Cameras near exits can also help reduce truancy.
Fixed cameras can be strategically placed in order to protect valuables like computers, sound equipment, trophies and books.Outdoor surveillance cameras in parking lots can help protect older students and staff when leaving school late or arriving early. These cameras can also discourage break-ins and vandalism during school hours.
While school surveillance cameras are generally beneficial, systems are constantly under risk of vandalism/breaking. Students and staff should remain diligent of their security and act responsibly during an emergency.
Video surveillance systems are also useful tools when creating your visitor management system.
The most common use of a school video surveillance system is to increase student and staff safety. Prominently placed cameras warn students and staff that they may be monitored, which can deter bad behavior.
Video surveillance systems are also useful tools when creating your visitor management system.
One problem many schools continually struggle with is proper access control for visitors. By implementing school security cameras at entrance doors, you can help your administrative staff monitor visitors and make sure they are properly signed in, while still allowing your students to move freely around the campus.
Safeguarding the well being of all students and staff is a primary concern for schools today.
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A closed — circuit television camera (CCTV) records videos and images for security, surveillance or other personal purposes. Security cameras have become an important aspect in security and are mainly used for surveillance purposes. Statistics show that installing a CCTV camera reduces crimes in the area covered up to 95%. CCTV’s are used by many for various reasons. Every organization has CCTV’s installed for 24×7 surveillance. Banks, Malls and of course the Government is dependent on security cameras for enhancing security.
Security cameras come in various types, configurations, styles with many different features and options and it’s very important to select the right CCTV camera according to the applications and location.
Which security camera is the best for your location and application?
The 11 different types of security cameras include:
Dome Cameras — Dome Cameras are mostly used indoors. It is easy to install and requires only two to three screws for its installation. Dome cameras at times come with the Infrared feature because of which recording of videos and images in dim light are possible. As the lens of the dome camera is covered, the direction the camera is facing is not known.
2) Bullet type cameras — Bullet cameras are long cylindrical in shape. These cameras are the best for outdoor purposes and help in long distance viewing. Bullet cameras are modified to fit in a weatherproof case to prevent rain, dust, dirt and other harmful elements making it ideal for outdoor use.
3) Infrared cameras — Infrared Cameras are mainly designed for night use or for locations having extremely poor or dim lighting. It has infrared LED lighting around it for night time use. When its dark its illumination capacity decreases because of which black and white images are produced.
4) Discreet Cameras — Discreet cameras as its name suggests are hidden cameras which are not visible to the human eye. They can be hidden anywhere behind a desk or even the fan. It is mainly used for spying purposes.