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Standard Functional Configurations for Analog Switches and Multiplexers
Published in Steve Moore, Designing with Analog Switches, 2020
The function of any switch is to either connect or isolate two sections of a circuit. A simple light switch performs this function with direct, manual, mechanical control over the electrical connection from the power line to the light bulb. A relay provides indirect control of an electrical connection, replacing the manual control of the connection with remote electrical control of the switching action. An analog switch is like a relay, but the mechanical control of the connection is replaced by an electronic switch, such as a Field Effect Transistor (FET). The switching action in an analog switch is provided by a logic input that is compatible with standard logic interface standards, such as TTL.
A Dynamic User Interface Based BCI Environmental Control System
Published in International Journal of Human–Computer Interaction, 2020
Saisai Zhong, Yadong Liu, Yang Yu, Jingsheng Tang, Zongtan Zhou, Dewen Hu
The online experiment was divided into two stages, referred to as Experiment 1 and Experiment 2. Experiment 1 was designed to test the online classification accuracy of the classifier. In Experiment 1, the subject was tested in four sessions. Each session contained one run and each run contained 14 rounds. One session lasted 126 s. Experiment 2 evaluated the performance of the proposed system using two specific tasks. Task 1 asked the subject to drive the wheelchair to several provided destinations in sequence and required the following steps: (1) Assigning a navigation task by selecting location 14 as destination 1. (2) Select the wheelchair UI. And adjust the wheelchair to make location 11 appear in the scenario UI. (3) Enable the scenario UI and select location 11 as destination 2 for navigating the wheelchair. (4) Adjust the wheelchair. (5) Select location 7 as destination 3. (6) Adjust the wheelchair. (7) Select location 4 as destination 4. In Task 2, in addition to driving the wheelchair, the subject was also asked to turn on the air conditioning and the electric light at destination 1 and destination 2, respectively. (Simulation control: Commands were used to calculate the correct rate without being sent to the device). The process for Task 2 was as follows: (1) Assign a navigation task by selecting location 8 as destination 1. (2) Arrive at destination 1 and look at the air conditioning to highlight it in the scenario UI. (3) Enable the scenario UI and select the air conditioning. (4) Turn on the air conditioning utilizing the air conditioning UI. (5) Select the wheelchair UI and adjust the wheelchair to make location 14 in the scenario UI. (6) Select location 14 as destination 2. (7) Arrive at the destination 2 and look at the light switch to make it in the scenario UI. (8) Enable the scenario UI and select the light switch to turn on the electric light. (9) Select the wheelchair UI and adjust the wheelchair. (10) Select location 11 as destination 3. (11) Arrive at destination 3 and adjust the wheelchair. (12) Select location 5 as destination 4. The locations set in the two tasks are presented in Figure 1.