Solution for the limitation of motion sensor

Yes Mr.Chan i would like to tell you to prevent these problem the sensor manufacturers have recommend to reduce the sensitivity of the sensor. For example, anyone who is walking slowly towards the door or entering the door the sensor may not be detected and the door will be still closing.

Limitations of Motion Sensor

ha ha...Mr Gan... you asked a good question....
Motion sensors have some problem...

1 --> it has a limited distance to detect the motion

e.g) while you are playing a wii, you cannot stand or sit too far away, it may not detect the controller movement ...

2 --> if a motion sensor for the automatic door is not mounted securely, normal vibration, sign,plants and neon light can trigger the door open.

e.g)this is very dangerous, if a customer pauses or their forward motion stops, and a motion sensor is all you have, the door will close on that customer and could cause an injury.

3 --> It cannot detect the small objects such as insects or raindrop.

So Mr.Gan do you much more clearer about motion sensor already???
if still have any question, i would like you to leave me some comment... thank you....

http://www.larcomfg.com/AutomaticDoorMats/Library/adactiveops.htm

Motion sensor that has been used in device

hello everyone, why nobody give me some comment?
haiz....
Today i wanna to let you know and give some example what are the devices that has been used motion sensor technology.
one of the exmaple is Wii, Wii is come from the Nitendo company which is located in Japan. This device is using motion sensor technology and it is wireless. Wii it have 3 type of devices, first is the main device that can insert CD game, second is the controller and third is the detector. you can use the controller point to the detector and then the player inside the game will move.

Motion Sensor technology

There are serveral types of technology that has been used in motion sensor such as

1 --> Passive Infra-red
2 --> Ultrasonic
3 --> Microwave

Passive Infra-red
Normally passive infra-red is looks for the body heat.

This picture shows that two girls in infrared

Ultrasonic
This technology it sends out pulses and detect the moving object.

Microwave
This technology is sends out microwave pulse and detect the moving object. It is similar to the police radar gun.





0
http://wikipedia.org/wiki/Motion_detector

Introduction

Hi...
I am Ng Shyh Jyef you can call me Jyef as well, thanks for you to view my blog...Doing this blog is for my first assignment which is CS135 known as New Technology and HCI...
Lecturer Andrew Ho is teaching me in this subject, he is a nice lecturer, during his class i would not feel bored cause sometime he will make some jokes.
So in week 2 he was given us a task and it is also our first assignment, in this assignment we have to create a blog and then post the article of the new technology.
So the new technology that i have been choosen is Motion Sensor, so i will talk about all the technology of motion sensor. Please give me some comment after you read my article ya...
Thank you...