Project report on “voice actuated folding table"

Abstract

Space-saving furniture design is prevalent in our daily lives and businesses, taking into consideration that the average living space of people in the world’s major cities is shrinking. Amidst the rising cost of living, the demands for economical and transformable space-saving furniture are increasing. With rapid increase in smart homes market, increasing demand for small and studio apartments, foldable furniture market is growing every day. Keeping that in mind, we had to customize the table so it can be used for space saving and automation purpose. Strength, light weight, Cost effectiveness, Voice control and space saving were our basic considerations throughout the design the table. Wood was selected as an appropriate material for design of the table because of its properties such as lustre, odour, texture, grain, figure, weight, and hardness and the links are made up of aluminium because of its advantageous properties such as strength, lightness, corrosion resistance, formability and durability. The folding table mechanism is based on Planar quadrilateral linkage, 4R linkages have four rotating joints. One link of the chain is usually fixed, and is called the fixed link. The two links connected to the frame are called the grounded links and are generally the input and output links of the system. The last link is the floating link, which is also called a coupler or connecting rod because it connects an input to the output. The table is equipped with 2 servo motors to link the parts and bring table movement. Arduino, an open-source computer hardware and software is applied to control the robotic arm by driving servo motors using Bluetooth module HC-05 which is used for Voice control and is capable to modify the position of the table. All the impact and stresses were calculated by considering the working conditions and the design was analysed on the software. After the complete inspection of design in all modes of failure the design was finalized and a prototype was fabricated.