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Motion sensor (detector) is the core component for your security system, and it can detect the illegal intrusion through picking up movement from someone who is in your home when they shouldn’t be. The motion sensor can utilize multiple technologies to detect movement in specific area. Passive infrared detection is one of main technology used in these sensors. If a sensor is triggered, the alarm signal will send to alarm control panel either via hard-wiring or wireless radio frequency. Once the control panel receive the signal and determine its security breach, alarm set off immediately. Sensor movement Miami Beach Coral Gables.
We will provide some comprehensive information about this type of sensor, read below info, you will know how to install, use motion sensor properly. Sensor movement Miami Beach Coral Gables.
The function of motion sensor in your security system. Sensor movement Miami Beach Coral Gables.
Sensing the motion of human being is the main purpose of motion detector. The sensor can work in day/night 24 hours with passive infrared detection theory. Sensor movement Miami Beach Coral Gables. The sensor with PIR elements for sensing the infrared energy changing inside guarded space. Some advanced motion sensors can record the video footage, once it detects the motion. Sensor movement Miami Beach Coral Gables.
Motion sensor is widely used in many applications, and it can pick up movement in your bedroom, windows or doors being opened or closed, the motion detectors can:
- Notify you when detects illegal entry
- Making doorbell sound when someone approaches the door/windows
- Alert you when people access into restricted areas in the home
- Motion sensor based lighting to save energy
The types of motion sensor
Typically, there are two kinds of motion detectors: passive motion sensor (PIR) and active motion sensor (AIR). Each uses unique technology to sense motion in the specific area. The passive infrared motion sensor only receives the infrared energy from protected objects and environment; it doesn’t emit any infrared ray or energy, by reading changes of energy in the surrounding area, the detector can pick up the motion. Active sensor emits the infrared rays or micro-ware radiation to detect the movement. Sensor movement Miami Beach Coral Gables.
Passive infrared (pir)
Passive infrared motion sensor detection
Detects infrared energy level. Passive infrared detectors are the most widely used motion sensor in intrusion alarm systems. Sensor movement Miami Beach Coral Gables. When the alarm is armed, the installed motion sensors are activated. The sensor can detect motion in the guarded areas, forming a protective “grid”. If a moving object blocks too many grid zones cause infrared energy levels change rapidly, the sensor will be triggered. Sensor movement Miami Beach Coral Gables.
Microwave motion detection
Emitting micro-ware using Doppler effects, and measuring the reflection off a moving object. The micro-ware can penetrate majority objects and detects a larger area than passive infrared sensors. Sensor movement Miami Beach Coral Gables.
Dual technology motion sensor
Dual technology motion detection
Dual technology combines two different technologies for accurate motion detection. It can effectively reduce the false alarms rate. A Dual-tech motion sensor is built-in two different cores; passive infrared, micro-ware. Since each operates in different areas of the spectrum, the dual-tech motion sensors are as likely as other types to cause the false alarms. In order to trigger the alarm, both sensors (Infrared and microwave) need to be tripped. Sensor movement Miami Beach Coral Gables.
How to place the motion sensor?
The best way to install the security alarm system is to hire professional installer. Sensor movement Miami Beach Coral Gables.They will know how to setup sensors. However, you may choose to use the DIY home alarm system which requires setup by yourself. Before begin the installation, make sure to read the installation manuals comes with sensor, since the manual will included detail information for usage and placement recommendation for installation. Sensor movement Miami Beach Coral Gables.
Please bear in mind that motion sensors are not error-proof. Without properly installation and usage, there are instances in which there could be false alarms. Especially animals insects and foliage will lead to false alarms. Sensor movement Miami Beach Coral Gables.
Tips to avoid false alarms for motion sensor
Making sure to read the instructions that come with our detector, this can help you to increase the effectiveness of your sensors and prevent the false alarm, and also you can consider the following tips for sensor placement. Sensor movement Miami Beach Coral Gables.
- Avoid install the PIR motion sensor near to heating sources, it should be 10-15 feet away from heating vents. The swift change in heat and a cloud passing quickly over direct sunlight shining into your bedroom, the sensor could be tripped. Sensor movement Miami Beach Coral Gables.
- Place the motion sensors at “entry points” – ares where people will walk through to get inside, like the stairwell or main hallway. That means an intruder will trip the sensor before they are headed. Install more sensors in bedroom where have valuables need to be protected. Sensor movement Miami Beach Coral Gables.
Placement diagram for motion sensor
- Pretend to be potential intruder, and walk through your property, and access where intruders are most likely to enter, what the path they will chose for break-ins. Install the sensors into these key points and avoid having blind detection areas. Keep in mind that motion sensor with limited detection range between 50 and 80 feet. Place the sensors to a front and back door, garage door or patio door to prevent illegal enters for perimeter protection. Sensor movement Miami Beach Coral Gables.
Placement for motion sensor
- For sensitive or property usage of the motion sensor. The motion sensor should be installed where intruder will walk parallel to the sensor. Avoid place the sensor toward the intruders, it will not detect the motion accurately. Place the sensor on the walls of hallway or narrow pathway can allow sensor to detect the motion when an intruder walk alongside. Sensor movement Miami Beach Coral Gables.
High power lights that illuminate all night tend to consume a lot of power which results in large electricity bills. Sensor movement 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 sensor or motion detector is used together with a lighting fixture. Sensor movement Miami Beach Coral Gables.
What is motion detector and motion detection?
A motion detector or motion sensor 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. Sensor movement Miami Beach Coral Gables.
Motion detection is such a process, where a special sensor is used for detecting changes of different objects (mostly humans) in the sensors 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. Sensor movement Miami Beach Coral Gables. For example, infrared sensors 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 sensor detects changes in 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 special algorithm can detect these changes. Sensor movement Miami Beach Coral Gables.
Where motion sensors are used?
Motion sensors are used together with some kind of other devices, such as security cameras, alarms or lightings. One of the most common usages of a motion sensor is together with an alarm system. Sensor movement 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 sensor it automatically starts the alarm. Motion detectors are also used together with security cameras, when motion is detected the security camera is turned on to catch the person walking by the observed location. Sensor movement Miami Beach Coral Gables.
More advanced motion sensors are used in many new technologies, such as gaming consoles, smartphones, robotics and others. Sensor movement Miami Beach Coral Gables.
Automatic doors with a motion sensor
Besides previously mentioned applications, motion detectors are often used together with lights and lighting systems both for security and safety purposes. Sensor movement Miami Beach Coral Gables. When a person walks by an area which is monitored by the motion sensor, 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 alarms in security systems. Sensor movement 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. Sensor movement 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 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 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. Sensor movement Miami Beach Coral Gables.
Occupancy sensors are used in indoor places to detect if there is a movement in the room and turn light on or off accordingly. These sensors help to save both individuals and companies significant amount of money on electric bills each year. Sensor movement Miami Beach Coral Gables.
Types of motion detectors
Motion detectors can be categorized in three types – active, passive and combined sensors. Each of these sensors respond to different actions and each are used in different situations. Sensor movement Miami Beach Coral Gables.
Active sensors use technique that sends signals or waves across the room or other place, where the sensor 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 other type of device that is connected to the motion detector. Active sensors 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 sensor, which then could trigger the outdoor lighting. Sensor movement Miami Beach Coral Gables.Active sensors 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. Sensor movement Miami Beach Coral Gables. Active motion sensors are not the best solution for outdoor lighting as movement of random objects such as wind-blown things, smaller animals and even larger insects can be detected by the active sensor and lightning will be triggered. Sensor movement Miami Beach Coral Gables.
Passive sensors or PIR sensors (passive infrared sensor) in opposite to active sensors 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 sensor. Sensor movement Miami Beach Coral Gables. Passive sensors 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 temperature above absolute zero, most from humans). When a human walks into the detection area of a passive sensor, it detects heat emitted from that human and triggers alarm or turns on the light. Sensor movement Miami Beach Coral Gables. These sensors would not be effective if they could get activated by a small animal or insect that moves in the detection range, however most passive sensors can be adjusted to pick up motion of object with certain level of emitted heat, for example adjusting the sensor to pick up movement only by humans. Sensor movement Miami Beach Coral Gables.
Combined (Hybrid) sensors
Another motion sensor type that has become popular recently is combined or dual technology sensors that have a combination of both active and passive sensors. It activates light or alarm only in such occasion, when motion is detected by both active and passive sensor. Sensor movement Miami Beach Coral Gables.Combined sensors are useful for alarm systems to reduce possibility of false alarm triggers. Sensor movement Miami Beach Coral Gables. The most popular type of dual technology sensors combines a PIR and a microwave sensor. However this technology also has its downside. It cannot provide the same level of safety as separate PIR and microwave sensors, because alarm is triggered only when motion is detected by both sensors. So for example, if a burglar knows how to evade one of the sensors, his movement is going to be detected just by one sensor, no signal will be sent to the alarm system and it won’t be turned on. Sensor movement Miami Beach Coral Gables.
Active, passive or combined sensors 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 sensor is used for the light. However, this is because the largest part of lights (especially outdoor lights) has passive infrared motion sensors. Sensor movement Miami Beach Coral Gables. And if you think more, it makes a lot of sense that passive motion sensors that use heat emitted from a human are a lot better suited for lighting than active sensors that sends and receives signals and detects changes in wave lengths. Active motion sensors can be found in some indoor lights and they are not the best solution for outdoor lighting as movement of random objects such as wind-blown things, smaller animals and even larger insects can be detected by an active sensor. Sensor movement 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 sensor light” or „Light with a PIR motion sensor” you can be sure that this type of light uses a passive motion sensor. Sensor movement Miami Beach Coral Gables.
What a PIR detector is?
A PIR is a passive infrared motion sensor. It detects infrared energy, which is in a form of a temperature that is radiated from body of humans, animals and other objects. A PIR sensor can detect motion in certain distance and angle, so PIR sensors have different working areas. Sensor movement Miami Beach Coral Gables.
PIR sensors are simple electronic devices and their only job is to detect changes of infrared radiation in form of a heat from detection area. Infrared light moves electrons in the sensors, which are captured and amplified in an electrical signal. This signal then is used to alert the alarm system or trigger a motion light to start illuminating. PIR sensor structure is pretty simple and consumes little energy and most basic sensors cost just 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. Sensor movement Miami Beach Coral Gables.
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