Modeling of Refreshing Rate and its Parametric Analysis of a Multi-lines Braille Display using Electrorheological Valves Matrix
- Resource Type
- Conference
- Authors
- Jingyu, Huang; Shilei, Dou; Luning, Xu; Li, Han
- Source
- 2020 IEEE International Conference on Power, Intelligent Computing and Systems (ICPICS) Power, Intelligent Computing and Systems (ICPICS), 2020 IEEE International Conference on. :388-391 Jul, 2020
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Power, Energy and Industry Applications
Signal Processing and Analysis
Erbium
Valves
Fluids
Visualization
Mathematical model
Actuators
Analytical models
Refreshing rate of Braille dots
Braille display
Electrorheological valves matrix
Modelling
Parametric analysis
- Language
The refreshing rate of a multi-lines Braille display using electrorheological (ER) valves matrix plays a very important role to meet the demands of reading experiences of visual impaired people, a lower refreshing rate of Braille dots which is less than the reading rate of visual impaired people will stop them from using the Braille display and let them learn knowledge by listening. The refreshing rate is governed by the rate of flow of an ER valve which was used to be an actuator of the corresponding Braille dot. A mathematical model of the refreshing rate was established to learn the effects of the critical parameters of the ER valve on the rate of flow of the ER valve which is equivalent to the refreshing rate of the Braille display in this paper. The results show that to meet the demand of refreshing rate for visual impaired people, the governed voltages of ER valves should be higher than 1kV. The minimum value of operational governed voltages of an ER valve will decrease when higher tolerances were exploited to the parameters of channel of an ER valve. These results may provide some suggestions to design of an ER valve.