Introduction
As intrusion, theft, and sabotage increase across commercial and industrial environments, you need motion detectors to strengthen your security systems in order to help detect intruders and to improve safety. This article is a complete guide to motion detectors, how they work, their types, and strategic placements for maximum effectiveness.
What Is a Motion Detector
A motion detector is an electrical device that makes use of sensors to detect movements in a nearby environment. This device has become a critical part of modern security systems. You can merge it with other security devices like alarms, lightning and surveillance cameras etc, to automatically alert you of motions in an unauthorised or restricted area, thereby helping you prevent intrusion and improving your overall safety.
Types of Motion Detectors and How They Work
You will find various types of motion detectors out there, each with its own unique operation. To understand how each one works, you need to look at the technology behind its sensor, because every sensor operates differently to detect movements. Below are some common types of motion detectors and explanations on how they work.
Passive Infrared Motion Detector (PIR)
Passive infrared motion detector is one of the most popular types of motion detector out there. It works by helping you detect changes in infrared radiation, which is basically the heat that human beings and animals emit, within the confines of their detection area.
Anssin’s PIR motion detectors are easy to combine with different security devices. You can easily integrate them into your industry surveillance cameras, alarms or automatic lighting systems as they are great for motion detection, affordable and save energy.
Microwave Motion Detector
A microwave motion detector detects movements through the use of microwave signals. They work by sending out waves across a detection zone and measuring the time it takes for those waves (echos) to bounce back. The essence of these is to help the detector identify motion-less objects and use this to set a baseline for that area.
When it senses movement within the baseline, the frequency of the reflected waves changes. The detector will recognize this change and will immediately notify you by triggering lights, alarm or other connected security devices. You can use microwave motion detectors in warehouses and open plan offices because they can cover large areas and detect motion through glass and thin walls.
Ultrasonic Motion Detector
A bit similar to a microwave detector. Ultrasonic motion detectors are considered very active detectors. They use high frequency sound waves to help you detect motion. When there is an external movement along its part, the sound wave will be disrupted and the device will detect this change, activating an alarm or light signal to notify you of this change.
Considering the highly sensitive ability of ultrasonic motion detectors, you can use them in automatic doors, lights and other security systems as they are able to easily detect even small movements along their waves.
DualTech Motion Detector
Just as the name implies, dual technology motion detectors combine two types of detectors, majorly “Passive infrared (PIR) and Microwave motion detector” for its operation. Each of these detectors will carry out its own operation, and until both detectors are triggered before the system is activated. This makes it more reliable and helps you reduce false alarms.
You can use a dual technology motion detector in environments where accuracy is crucial like conservatories, garages and areas where movements are frequent to catch intruders even when there is a change in environmental temperature.
Devices Commonly Integrated With Motion Detector
With the rise of theft and vandalism today, motion detectors have become extremely useful. You can seamlessly pair them with other devices to tighten your security and improve workplace convenience. Below are some devices you can integrate with a motion detector easily.
Security Alarm Systems
You can integrate motion detectors into alarm systems. This serves as a bridge between motion detector and motion alert. Once movement is detected within the premises of the detector they immediately notify you through an alarm or send an alert to your phone or PC, making you aware of any potential breach or Intrusion.
Surveillance Camera
A surveillance camera is one of the devices you can pair a motion detector with. When the detector detects movements, it triggers the camera to start recording or even send you an alert. Motion detector cameras help you monitor your goods and surroundings in real time and provide you with a valuable footage record if perhaps something unusual happens.
Light Control Systems
Motion controlled lighting is common and a very effective security measure found in commercial environments. Can you imagine an intruder walking into a dark area and the light suddenly turns on exposing the intruder in clear and bright shining light.
That’s the work of motion detectors paired with smart lighting systems, they detect presence and illuminate the area.This does not only improve safety and convenience but also helps you save energy by making sure that lights are only on when needed.
Building Automation and Access Control
You can use motion detectors to automate different functions in a building by linking them with various devices. For example, you can connect them to thermostats to automatically adjust the temperature when people enter a specific area.
You can also integrate them with doors so they open automatically when the detector senses someone’s presence. This automation helps you create a smart responsive environment that is tailored to your business needs.
Strategic Placements of Motion Detectors
Since you now know the different devices that you can pair with motion detectors, it is also important that you know the strategic places to mount them for maximum effective operation, because a proper placement provides you with better coverage and reduces false alarms.
Entry and Access Points
You can use your motion detector near entry and access points like doors and windows for quick movement detection and maximum security provision. With this you can easily detect motion if someone approaches the detection area.
Angled Area and Height
Ideally, you should place motion detectors in an angled area with a reasonable height of about 6 to 8ft away from the ground for good motion detection range indoors. And also you need to ensure that the angle does not have any obstructions like furniture, walls or plants that could block or compromise the detector’s sensor view field.
Outdoor Spaces
For outdoor spaces, you should install motion detectors in places like driveway or garden paths. You need to place it in a location that covers the largest angle of the environment you want to monitor. Ideally height of about 10 to 15ft is fine for outdoor spaces. This will help you reduce false triggers that may be caused by small animals, while still actively detecting large movements.
Key Benefits of Motion Detectors In Commercial and Industrial Settings
In commercial and industrial environments, motion detectors offer you a wide range of benefits beyond the usual traditional manned security. They help you automate monitoring, improve safety and reduce additional cost. Below are some key benefits of using motion detectors in both commercial and industrial settings;
- Large area coverage: In commercial and industrial environments, you can use motion detectors to monitor and secure wide areas effectively. They help you cover large spaces such as warehouses, factories, and parking lots etc, without the need of constant human supervision.
- Excellent Deterrent: You can connect certain motion detectors to speakers to broadcast audible warning messages to intruders, alerting them that they are being monitored. This immediate response discourages unauthorized access and also serves as an excellent deterrent agent for theft and intrusion.
- System Integration: You can easily integrate motion detectors into your industrial or commercial security setup because the process is straight forward especially with wireless systems. Wireless integration allows you to connect detectors quickly with alarms, cameras and lighting etc. thereby reducing the installation time and improving system efficiency.
- Cost Saving: If you are to hire security personnels for every part of your warehouse or factory, the cost can be quite high. Instead, you only need to make a one time investment of installing a motion detector to enjoy round the clock monitoring. This allows you to reduce reliance on multiple security personnels and avoid unnecessary long term security costs.
Common Challenges and Limitations of Motion Detector
As incredibly useful and important motion detectors are in improving security systems, you must know that they have their own share of challenges and limitations in their operations. By understanding these limitations, you will be able to minimize them while making the most use of your detectors. Here are some common challenges of motion detectors and ways you can minimize them.
False Alarm
False alarm is one of the most common challenges with motion detectors which you may likely encounter as well, and this may be triggered by anything that moves, from moving trees to animals passing by to moving vehicles and likewise temperature changes. Listed below are some ways you can minimize false alarms;
- Good Placement: You must ensure that your motion detectors are properly placed and a bit far away from high traffic outdoor areas, to avoid being triggered by passing cars or wildlife.
- Sensitivity Settings: Many detectors have an adjustable sensitivity setting, make sure you find the right settings to minimize false alerts and focus on actual movement.
- Priority Zones: Most motion detector cameras are built in such a way that you can customize a priority zone. Which means that you can concentrate majorly on the critical areas of your workplace that need cogent monitoring.
Pet and Small Object Sensitivity
Pets and small objects can frequently trigger your motion detector thereby sending you a false alert. This can be frustrating especially when you do not want an unnecessary interruption. The best way you can minimize this is to position detectors far away from the ground and also to invest in smart features motion detector cameras that can differentiate humans from pets.
Temperature Sensitivity
When there is an extreme change in temperature, motion detectors like “PIR models” can be affected, especially if you place them close to heating vents or directly under sunlight. This shift in temperature can cause the triggering of false alarms or even miss potential detections.
You can prevent this by installing motion detectors in places where there is a stable temperature or you can choose models that are waterproof and that can withstand fluctuations in temperature without having effects on its performance.
Wi-Fi Signal Interference
You can sometimes experience Wi-Fi interference with your wireless motion detectors from other devices that are nearby causing problems in the connection or even cause notification delay. To prevent this you need to place the detector away from other electronic devices that can cause disruption of signals.
FAQs
Yes a motion detector can be triggered by insects and small animals if they move close to the detector. You can experience this with detectors that are highly sensitive like the passive infrared (PIR) motion detector. To prevent this you must make sure that your detector is clean and positioned in places less prone to insects and not easily accessible to animals.
Yes, motion detectors can be intentionally obstructed and bypassed if someone understands how they work. In general this happens when an intruder attempts to avoid being detected, thereby exploiting the detector's limitations or physically blocking the device.
Examples on how they do this include moving extremely slowly, hiding themselves behind large objects, crouching to pet heights or even by manipulating the environmental condition to reduce detection accuracy.
Because of this risk you can improve security by making use of multiple detectors (DualTech motion detector). Placing them correctly and integrating them with alarms and surveillance cameras makes it much harder for anyone to avoid being detected.
Conclusion
With the knowledge gained on the various types of motion detectors and how they work, you can confidently choose the right solution for your business needs. Anssin manufactures high quality motion detectors that meet the highest security standards and with our technology you can be rest assured of dependable protection.