How to select the speakers and the number required in your school
IP paging speaker placement and sound volume settings are key to providing clear sound in the school. Whether there is a general announcement or an emergency message, it’s important that the instructions can be heard and understood by everyone.
Network attached IP speakers are easy to install, but they must be placed in the right location, and the sound volume must be correct so that all locations are covered with clear sound.
This article provides guidelines for selecting the right IP paging speakers for your school. The article also helps you determine the number of speakers you need, and the amplification required.
How IP Camera Enclosures are Designed for High-Temperature Applications
Do you need to view a rocket launch or the inside of a blast furnace? The usual IP camera systems won’t survive these extreme conditions. These applications require a special camera enclosure that is designed for these extremely hot environments.
Applications for Thermal and Optical IP Camera Systems
Thermal and optical IP cameras use different technologies to capture video. Each type of camera system provides a unique role in an IP video surveillance system. Systems that combine thermal and optical cameras provide a synergistic solution for long-range surveillance.
Long-Range Camera Concept
Thermal cameras are better for night viewing since they don’t require any light. The optical IP cameras require daylight or illumination at night and are best for identifying details such as a person’s face or a license plate number. This article describes when to use these camera systems.
There are different methods used for matching facial biometrics. The simplest method measures various features of a person’s face, such as the distance between the eyes, or the position of the mouth to the nose. These geometric measurements or vectors are then coded and stored in a database for later comparison. This type of system is usually used in biometric door access control readers.
How much should you expect to pay for your IP camera? IP cameras range in price from under $200 to over $1000.
Since the price depends on what you need, you should always make sure you understand your objectives. For help in defining your requirements, take a look at our article,Defining Your Objectives.
Price varies with performance. The least expensive cameras have fixed lenses. Do you need a camera for a small room or an outdoor camera that can recognize a person over 300 ft. away? The more expensive cameras include variable lenses that you can adjust from your computer. Some high-performance very low-light outdoor cameras can see things by starlight.
How to Create a One-Button Emergency Response System
When seconds count, a single-button alert system is essential for your organization’s safety. Whether you need to establish a lockdown or let everyone know about a fire, the rapid notification capability is important.
Emergency alert buttons can be placed at various parts of the facility and connected to your IP security system. This means you can provide different responses depending on the location. You can also have unique buttons for specific emergencies. For example, you can respond to a fire or establish a lockdown depending on the button pushed. Here’s how it works:
It was a dark and threatening day. Thunder could be heard in the distance. Fog blanketed the building, weakening the remaining daylight. Strange sounds were heard in the basement, and the security center was called to investigate.
The guard walks anxiously along a dark and long hallway. As he turns the corner, he is suddenly confronted by…
This is certainly not your father’s door control systems.
Wouldn’t it be nice to be able to push a button to initiate campus-wide lockdown? What about integrating IP door access with your IP surveillance system, or controlling what floor a person can go to in the elevator? Or, maybe you would like to use the access system as a visitor management system? Well, the latest network-attached access control systems provide these advanced features as well as many others that can make it easier to control security.
Have you ever tried to take a snapshot of something that’s far away? When you are using a long distance lens (higher focal point), you probably found it hard to keep the camera steady.
The higher the focal length of the lens, the more difficult it is to stabilize the image. This problem is especially significant with very long-range IP camera. When a surveillance camera is mounted on a swaying pole, or on a ship at sea, movement can affect the quality of the video. Image stabilization is used in IP cameras to reduce the effects of this motion.
This article describes the various mechanisms used to stabilize an IP surveillance camera.
Did you ever want to yell at someone you see on your video surveillance display? Maybe you want to tell them to get away from your parking lot or to yell at an intruder that the police are coming. Perhaps you would like to talk to someone at your door? Then you could let the delivery man enter the back door at your office.
IP audio interface systems provide connections to speakers for paging or intercom devices. This article describes how audio can be added to your network or IP camera system.
