Abstract: A parking information sensing device is disclosed. Each parking space in a parking lot is disposed with a parking information sensing device, detecting whether a car on the parking space. By means of a driving control circuit, the sensing device drives a light emitting unit to emit a light and a reflecting element of the parking space is on a pathway of the light. Light is reflected by the reflecting element and then passes light sensing unit that detects the reflected light and generates a first sensing signal sent to the driving control circuit. Thus the driving control circuit judges if there is no vehicle on the parking space. On the other hand, it judges if there is a car on the parking space according to another sensing signal. The sensing device further includes a first transmitting/receiving unit that forms a wireless mesh network among parking information sensing devices.
July 23, 2007
Date of Patent:
April 20, 2010
Chun Shan Institute of Science and Technology, Araments Bureau, M.N.D.
Ming-Town Lee, Tain-Wen Suen, Tung-Jung Hsu, Chuen-Lin Bau
Abstract: A method for producing 1,4-bis(dichloromethyl)tetrafluorobenzene is disclosed, which is achieved by reacting tetrafluoroterephthaldehyde, SOCl2 and organic solvents. In the synthesis of 1,4-bis(dichloromethyl)-tetrafluorobenzene by adding formamides as catalyst, there are remarkable advantages which include shortening the reaction time; simplifying the synthesizing steps and raising the yield of the product.
October 10, 2008
Date of Patent:
June 9, 2009
Yuan-Shin Materials Technology Corp., Chun-Shan Institute of Science and Technology Araments Bureau, M.N.D.
Chan-Yuan Ho, Tsair-Feng Lin, Chun-Hsu Lin, Shieh-Jun Wang