Journal 9

Journal 9

The problem I will talk about in this journal is the quality of the sensor in the automatic door. The problem is that the sensor sometimes is not sensitive for short people or children. The sensor is located on the top of the automatic door which makes a long distance between the sensor and the short person. This long distance makes the sensor not sense the presence of the short person and thus the door will not open. In other words, the insensivity of the sensor constrains the entry of short people. To open the door, short people should raise their hands so the sensor can sense them and open the door for them. But sometimes, even after raising the hand, the sensor does not sense. In this case, people should wait until someone who is taller than them come to open the door for them. I personally sometimes face this problem. To solve the problem, I suggest to use high quality sensor that can sense the presence of people regardless of how tall they are, so all people can enter the door without facing any problem that may upset them and let him feel negatively to their self because they are short.