Gaze point detection system allowing head motion

Aiming at the difficulty in control in tea fixation process, the intelligent control technology is adopted in the research which is for the core to the C8051F340 SCM and adopts the multi-point detection system to collect the temperature and humidity data. Besides, the data transmission with the epistemic machine can be realized by the I2C Bus, SPI and so on while the control rules and parameters of the controller can be intended. Thus it can be seen that the multi-parameter control of the temperature and humidity can be realized in tea green removing technology. The bunk watchdog circuit is adopted in hardware design to repair the systems bug automatically and safeguard the control system operate stably for a long time in this research. Additionally, the PID control algorithm is applied in software design to control systemic error less than 2%. Practical application indicates that this system is with simple structure, high reliability and good scalability, and it also can reduce the amount of labor and improve the teas quality.

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An In Situ End-Point Detection System Using Motor Power Signal for Chemical Mechanical Planarization Process

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.739.75 ◽

2017 ◽

Vol 739 ◽

pp. 75-80 ◽

Cited By ~ 4

Author(s):

Hong Kai Li ◽

Tong Qing Wang ◽

De Wen Zhao ◽

Jian Bin Luo ◽

Xin Chun Lu

Keyword(s):

Detection System ◽

Chemical Mechanical Planarization ◽

Accurate Determination ◽

Motor Power ◽

Layer Transition ◽

End Point ◽

End Point Detection ◽

Planarization Process ◽

Point Detection

Accurate determination of a chemical mechanical planarization (CMP) process reaching the end point is an important problem in the CMP process. In present work, the variation of the motor power signal of the polishing platen in the CMP process has been investigated, and the moving average method with 121-points moving window was used to smooth the original signal curve. Experiment results showed that the processed signal could facilitate the extraction of end-point feature for the in-situ end-point detection (EPD) system and it was relatively steady before and after the layer transition stage, which made it more reliable to detect the end point in situ. Comparing with other EPD methods, the system was less complicated, and it was easier to code for algorithm development. Finally, further analysis was performed and series of experiments provided a planarized via-revealed surface with low via dishing.

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Modeling and Simulation of Vehicle Traffic Detection System Based on Ground Sense Coil

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.989-994.2511 ◽

2014 ◽

Vol 989-994 ◽

pp. 2511-2514 ◽

Cited By ~ 1

Author(s):

Jing Wen Ju ◽

Jiao Yu Liu ◽

Wei Yang ◽

Ning Liu

Keyword(s):

Modeling And Simulation ◽

Detection System ◽

Frequency Change ◽

Square Wave ◽

Coil Inductance ◽

Oscillation Circuit ◽

Detection Circuit ◽

Point Detection ◽

Traffic Detection ◽

Sense Coil

In this paper, the traffic detection system based on ground sense coil is studied. Due to the change of ground sense coil inductance, the output waveform frequence of LC oscillation circuit changes [1]. The LC oscillation circuit is composed by the three point detection circuit. Then the wave is shaped into a square-wave by shaping circuit. The square-wave is transmitted into MCU, the frequency change is detected by MCU and motor is controlled by control signal from the MCU.So when a vehicle passes above the ground sense coil, this approach makes automobile blockader lift the stop lever automatically. And the system can stop the lever falling when there is a vehicle below the lever, so this system can prevent the vehicle damage. This system can improve practical value and application prospect of a automobile blockader.

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