Motion Detector Alarm Miami Beach Coral Gables
High power lights that illuminate all night tend to consume a lot of power which results in large electricity bills. Motion Detector Alarm Miami Beach Coral Gables. This is particularly true with outdoor flood lights that are bright and produce a lot of lumens. Also most solar lights aren’t able to work all night if they need to provide continuous illumination. To solve this problem a device called a Motion Detector or Motion detector is used together with a lighting fixture. Motion Detector Alarm Miami Beach Coral Gables.
What are Motion detector and Motion detection?
A Motion detector or Motion Detector is a device that is used for detecting a movement in a certain range in front or around the detector. Usually it is used to detect Motion of humans and is used for both safety and security purposes. Motion Detector Alarm Miami Beach Coral Gables.
Motion detection is such a process, where a special Detector is used for detecting changes of different objects (mostly humans) in the Detectors detection range that can either be an outdoor or an indoor area. The most basic Motion detectors are able to detect movement of objects in an area from 2 – 5 meters (6.5 to 16 feet) up to 20 meters (70 feet) and more.
There are different types of Motion detectors from infrared, optical to radio wave and others, and each of these types are used for specific occasions. Motion Detector Alarm Miami Beach Coral Gables. For example, infrared Detectors monitor changes in infrared wave or heat in the observable area and turns on a light, Alarm or a security camera when changes in the infrared spectrum are detected. Detectors that use radio-frequency detection sends out microwave signals to monitor a room and when an object walks in detection area the Detector detects changes in the microwave field and signals the system that there is a moving object in the room. Video cameras can also be used for Motion detection by algorithmically comparing images, when someone walks into the room the picture and pixels changes and the special algorithm can detect these changes. Motion Detector Alarm Miami Beach Coral Gables.
Where are Motion Detectors used?
Motion Detectors are used together with some kind of other devices, such as security cameras, Alarm or lightings. One of the most common usages of a Motion Detector is together with an Alarm system. Motion Detector Alarm Miami Beach Coral Gables. These Alarm systems are installed in both individual properties as well as commercial buildings to detect Motion of unwanted trespassers. When a burglar walks into the detection range of the Detector it automatically starts the Alarm. Motion detectors are also used together with security cameras, when Motion is detected the security camera is turned onto catch the person walking by the observed location. Motion Detector Alarm Miami Beach Coral Gables.
More advanced Motion Detectors are used in many new technologies, such as gaming consoles, smartphones, robotics and others. Motion Detector Alarm Miami Beach Coral Gables.
Automatic doors with a Motion Detector
Besides previously mentioned applications, Motion detectors are often used together with lights and lighting systems both for security and safety purposes. Motion Detector Alarm Miami Beach Coral Gables. When a person walks by an area which is monitored by the Motion Detector, the light is automatically turned on at the moment, when a Motion is detected. Motion activated lights are often used together with security cameras and Alarm in security systems. Motion Detector Alarm Miami Beach Coral Gables.
The most popular type of Motion lights is Motion activated flood light. These lights are used for both safety and security purposes. Motion Detector Alarm Miami Beach Coral Gables. Motion activated outdoor flood lights are used for illuminating an outdoor area at night, starting from front door illumination to large parking lots. From safety aspect, these lights help to illuminate a dark area at night, so that a person can safely walk to the desired place, and at the same time Motion detector helps to save energy by turning the light on only, when someone walks by and turning it off after the person has safely walked to the desired place. At the same time these lights can be used for security purposes to uncover a burglar from the dark and scare him away from your property. Motion Detector Alarm Miami Beach Coral Gables.
Occupancy Detectors are used in indoor places to detect if there is a movement in the room and turn the light on or off accordingly. These Detectors help to save both individuals and companies a significant amount of money on electric bills each year. Motion Detector Alarm Miami Beach Coral Gables.
Types of Motion detectors
Motion detectors can be categorized into three types – active, passive and combined Detectors. Each of these Detectors responds to different actions and each is used in different situations. Motion Detector Alarm Miami Beach Coral Gables.
Active Detectors use a technique that sends signals or waves across the room or another place, where the Detector is installed and monitors the changes in wave response time. When an object moves in the detection area, micro or other types of transmitted waves collide with the object in the room and responds back to the detector much quicker. Motion detector is able to understand these changes and send an electrical signal to the Alarm system, light or another type of device that is connected to the Motion detector. Active Detectors are used to detect any kind of Motion in detection range, which means that wind moved tree branches could be regarded as movement and detected by the Detector, which then could trigger the outdoor lighting. Motion Detector Alarm Miami Beach Coral Gables.Active Detectors that use microwaves for movement detection are mostly used in such applications as automatic doors on shopping malls and similar applications, but can also be found in-house Alarm systems and are used for indoor lighting systems. Motion Detector Alarm Miami Beach Coral Gables. Active Motion Detectors are not the best solution for outdoor lighting as the movement of random objects such as wind-blown things, smaller animals and even larger insects can be detected by the active Detector and lightning will be triggered. Motion Detector Alarm Miami Beach Coral Gables.
Passive Detectors or PIR Detectors (passive infrared Detector) in opposite to active Detectors does not send out anything, but sits in the corner of a wall or other place and waits for the infrared light to reach the Detector. Motion Detector Alarm Miami Beach Coral Gables. Passive Detectors scan the room or area it is installed for infrared heat that is radiated from living beings (actually heat is radiated from any object with a temperature above absolute zero, most from humans). When a human walks into the detection area of a passive Detector, it detects heat emitted from that human and triggers Alarm or turns on the light. Motion Detector Alarm Miami Beach Coral Gables. These Detectors would not be effective if they could get activated by a small animal or insect that moves in the detection range, however most passive Detectors can be adjusted to pick up Motion of object with a certain level of emitted heat, for example adjusting the Detector to pick up movement only by humans. Motion Detector Alarm Miami Beach Coral Gables.
Combined (Hybrid) Detectors
Another Motion Detector type that has become popular recently is combined or dual technology Detectors that have a combination of both active and passive Detectors. It activates light or Alarm only in such occasion, when Motion is detected by both active and passive Detector. Motion Detector Alarm Miami Beach Coral Gables.Combined Detectors are useful for Alarm systems to reduce the possibility of false Alarm triggers. Motion Detector Alarm Miami Beach Coral Gables. The most popular type of dual technology Detectors combines a PIR and a microwave Detector. However this technology also has its downside. It cannot provide the same level of safety as separate PIR and microwave Detectors, because Alarm is triggered only when Motion is detected by both Detectors. So for example, if a burglar knows how to evade one of the Detectors, his movement is going to be detected just by one Detector, no signal will be sent to the Alarm system and it won’t be turned on. Motion Detector Alarm Miami Beach Coral Gables.
Active, passive or combined Detectors for outdoor and indoor lighting
When looking at Motion activated flood lights you may have come across a fact that there are very few manufacturers that indicate what type of Motion Detector is used for the light. However, this is because the largest part of lights (especially outdoor lights) has passive infrared Motion Detectors. Motion Detector Alarm Miami Beach Coral Gables. And if you think more, it makes a lot of sense that passive Motion Detectors that use heat emitted from a human are a lot better suited for lighting than active Detectors that sends and receives signals and detects changes in wavelengths. Active Motion Detectors can be found in some indoor lights and they are not the best solution for outdoor lighting as the movement of random objects such as wind-blown things, smaller animals and even larger insects can be detected by an active Detector. Motion Detector Alarm Miami Beach Coral Gables.The light will get triggered much more times without a purpose, which will result in larger electricity consumption, will degrade light bulbs faster and may disturb you and your neighbors at night.
If you see that Motion activated light is commercialized as „PIR Detector light” or „Light with a PIR Motion Detector” you can be sure that this type of light uses a passive Motion Detector. Motion Detector Alarm Miami Beach Coral Gables.
What is a PIR detector?
A PIR is a passive infrared Motion Detector. It detects infrared energy, which is in a form of a temperature that is radiated from the body of humans, animals and other objects. A PIR Detector can detect Motion in certain distance and angle, so PIR Detectors have different working areas. Motion Detector Alarm Miami Beach Coral Gables.
PIR Detectors are simple electronic devices and their only job is to detect changes in infrared radiation in form of a heat from the detection area. Infrared light moves electrons in the Detectors, which are captured and amplified into an electrical signal. This signal then is used to alert the Alarm system or trigger a Motion light to start illuminating. PIR Detector structure is pretty simple and consumes little energy and most basic Detectors cost just a few bucks, so they are widely used in security systems for homes and businesses as well as indoor and outdoor lights and lighting systems, and also are used in robotics and other industries. Motion Detector Alarm Miami Beach Coral Gables.
A PIR Motion detector
PIR Detectors can have different adjustable settings. For example, some Motion detectors can be set to respond to energy in varying temperatures. For example a PIR Detector can be set to respond only to 10-12 μm (micrometer or micron) radiation, which is the average from a human body. Motion Detector Alarm Miami Beach Coral Gables.This way the Detector will not detect Motion of smaller animals like dogs and cats. Some Detectors are so sensitive that they can pick up a heat emitted from birds and larger bugs and the light is turned on after Motion detection.
In what application PIR detectors are used?
PIR Detectors same as active Detectors are mostly used in security Alarm systems to detect thieves and trespassers. Motion Detector Alarm Miami Beach Coral Gables. There are even some special pet immune Motion Detectors that are used in indoor Alarm systems and can be set to ignore animals at a specific weight. PIR Detectors are often used together with active microwave Detectors in security systems, to prevent false Alarm triggered by one or other Detector. Motion Detector Alarm Miami Beach Coral Gables.
Besides Alarm systems, PIR Detectors have often used in Motion activated lights. This includes both indoor and outdoor lights. Motion Detector Alarm Miami Beach Coral Gables. PIR detectors are a very popular combination with outdoor flood lights, as they tend to consume a lot of energy because of their brightness, and a Motion Detector helps to save energy and money by turning the light on only when a Motion is detected in front of the light. PIR Detectors are also used in solar lighting. Solar lights work on batteries that get charged in the day by sunlight and power the light at night. Based on the size of the battery lights can provide continuous illumination from a couple of minutes to few hours and larger lights can even work for all night. To prolong the illumination period solar lights are often equipped with a Motion Detector. With help of a Motion Detector lights that have batteries with capacity of less than an hour or even less than a half an hour can provide illumination for all night if used in an area, where the light needs to be turned on just a few times at night, for example, when used as a front door light. Motion Detector Alarm Miami Beach Coral Gables.
From what parts PIR Detector consists?
The basis of all PIR Detectors is practically the same, only a few parts such as lenses are different, which is why there are PIR Detectors with wider and shorter detection ranges as well as different sensitivity settings. Motion Detector Alarm Miami Beach Coral Gables.
The PIR Motion detector consists of such parts:
PIR Detector – The PIR Detector is the part which is responsible for measuring the infrared light emitted from an object in its detection area. Motion Detector Alarm Miami Beach Coral Gables.The Detector is protected from outer factors such as humidity by a metal casing. On top of the casing there is a small surface with the infrared-transmitting material under which is the infrared Detector. Motion Detector Alarm Miami Beach Coral Gables. The Detector (usually there are two Detectors) generates electricity from the infrared radiation or heat.
Lens – The lens is what can be seen from the outside of the detector. The lens is much wider than the Detector and its job is to bend light and focus it on the infrared Detector. The lens is made from a plastic which allows light with certain wavelengths to reach the Detector under the plastic cover. Motion Detector Alarm Miami Beach Coral Gables. The large lens is made from multiple smaller Fresnel lenses, which can capture more light on a smaller lens surface than regular lenses. Lens also protects the Detector from outer objects like dust getting to the Detector. To sum up, the lens of the Motion detector is responsible for a couple of tasks:
Focus the light on the infrared Detector, so it can cover much larger area;
Filter the light to capture the right wavelengths, for example to detect movement only by humans and not by smaller animals;
Protect the Detector from outer impacts and objects.
Electric circuit – This consists of some resistors, capacitors, chips and adjusters. There can be a couple of adjusters inside a Motion detector light:
Sensitivity adjuster – regulates a detection range of the Detector;
Timer to set the time of how long the light needs to illuminate after Motion has been detected by the Detector;
Timer to set the time of how long the light needs to be turned off after no further movement is detected. Motion Detector Alarm Miami Beach Coral Gables.
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