Home automation means controlling the electrical appliances by using information technology such as mobile phones, internet, GSM, microcontroller etc. Home automation techniques are much easier, full proof security, time and money saving.
In each and every home as well as industry, electricity is very much necessary and huge story building mostly have complex wired structure due to which the danger of short circuiting, time consumption and wastage of electricity has been increased. Automation system decreases our labor cost, save our time, save electricity and makes us independent from others. Most of the appliances are controllable therefore it is also a great need to make them interconnected. Through home automation, security can also be improved. Large numbers of home automation techniques have been adopted but still these are increasing and going advance. Most of the techniques are based on microcontroller which makes the decision according to the instruction stored in the memory of the controller. In some of these techniques, different types of sensors are used for different tasks. These techniques may be controlled through mobile using GSM module or may be speech operated. This project report has a complete understanding and implementation of voice operated control system for home automation.
2.8 Speech operated system
Speech operated systems are used to control the devices such as home appliances etc. through humane voice. These systems perform the required operations by continuously following the given instructions by human.
First speech operated device was introduced in 1940s but that was not as precise as required and was able to follow only one dedicated task at a time but still was a new turn in the field of engineer...
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...ntroller also display the status of Home appliance on the LCD. User can also control these appliance manually using simple switches.
Figure 3.1: Block Diagram of the Whole Project
3.4 Record Voice in MATLAB
In this project firstly record the commands by using the audio record function in MATLAB. Each command is repeated 10 times. The easiest way to record your voice through MATLAB is by using the audio recorder function.
Where first input is the Sampling Frequency.
Second Input argument is the analog to Digital conversion as the speech signal is the analog signal and the computer reads the digital signal so “audiorecorder” functions converts the analog signal into digital automatically.
And the third input is the no. of channels which tells us how many channels are using to record your voice through Microphone.
Example to record your voice for 2 seconds where
3. Variable-Speech Control Tape Recorder: This is similar to any generic tape recorder, and can be found in most electronics stores. The component that is benef...
National MS Society. Smart Home Technologies Increase your independence and self-sufficiency.
The Unistep IRP Elexol EtherIO 24 Module is a network board that enables multiple devices to connect to an Ethernet network, communicate with each other, and relay information when changes occur. The IRP module is a micro-controller, integrated with many features for interacting with devices connected on a generic local area network; this module was designed to be used in conjunction with other network devices or modules. Some of the applications for the device include industrial automation, digital input and output functions, system monitoring, remote data accessing, controlled machinery, and remote power control.
Delgado, R & Kobayashi, T 2011. Proceedings of the Paralinguistic Information and its Integration in Spoken Dialogue Systems Workshop. 1st ed. Springer.
The cylinder phonograph proved to be successful, but the problem with the machine was that the tin foil only allowed a few uses. With the help of another great inventor, new advances could be made to improve this invention. The inventor of the telephone, Alexander Graham Bell, had set up a laboratory for his cousin, Chichester Bell and Charles Tainter. Bell a...
The origin and history of simultaneous communication are one of the most interesting phenomenons in the world of communication. This based on the fact that simultaneous communication essentially began as a channel of directing someone to something without the use of a particular language. In this, simultaneous language became widely in the any communication process that entailed more than two languages (Gaiba, 1998). It is realized that modern simultaneous interpretation utilizes sophisticated sound equipment for the enhancement of communication, proving simultaneous interpretations historical antecedents. Simultaneous co...
Most of the applications in terms of speech and audio compression may seem obvious at first, but what most do not realize is the scale at which it is used. Some of the more common examples include: telephone communications, compact disc players in the form of digital audio coding, stereo sound systems, speech recognition and playback, noise reduction/filtering after voice recognition and speech synthesis [1]. The uses of DSP for speech and audio compression is certainly not limited to these examples, but just these alone are examples that the general public use through various devices on a daily basis often without realizing the function of the systems and processes that go into their operation.
At present we are facing many problems in our cities such as structural health of building, waste management, air and noise pollution, energy consumption and traffic congestion. Our project is to monitor these problems and provide a solution. By using an IOT, monitoring becomes quite easy as from anywhere we can monitor it. In our project, we will work on problems of waste management, air and noise pollution, street lighting and make a city “The Smart City”.
Cell phones have immensely changed the way people communicate today. A cell phone can be all a person need for interaction. From a cell phone, a person can make calls, send text messages, emails, and send and also receive directions, buy things online, do online banking, listen to music and much more. Since someone can do everything with one device, there is no longer a need to go around with multiple devices about. Greek hydraulic semaphore systems were used as early as the 4th century. The hydraulic semaphores, which functioned with water filled containers and visual signals, functioned as optical telegraphs. However, they could only apply a very limited range of pre-determined messages, and as with all such visual telegraphs could only be deployed during good visibility conditions. Experiments on communication using electricity was carried out in 1729 but was not successful. The experiment was proposed by William Fothergill Cooke. In 1837, William invented a practical electric telegraph which entered commercial use in 1838 (J. B. Calvert, May 2004). The first telephone was invented in 1878 by Alexander Graham Bell. He experimented with a ‘phonautograph’, it is a machine shaped like a pen that can draw shapes of sound waves on smoked glass by tracing vibrations.
Despite the short amount of time since the introduction of the smartphone, the rapid development of the software and technology has had a tremendous effect on the everyday life of society today. The concept of communicating through a telephone was developed in the 1870s. Devices to transmit speech electrically were designed by Elisha Gray and Alexander Graham Bell, but Bell's design was patented first. On March 10, 1876, Alexander Graham Bell achieved one of his greatest successes in the making of the telephone. This brought upon a major change in communication and gave leeway to the improvement of the telephone in the days to come (Bellis, 2013b).
The sound track is produced separately from the image and includes three ingredients: Dialogue/voice, sound effects and music. The three elements of the sound track can work together and independently to create meaning and to produce different effects.
The acoustic speech signal itself can be analysed by creating spectrograms. Each speech signal contains information across multiple frequencies which, when charted on a spectrogram, tend to form bands known as formants. Initial attempts to understand speech percep...
...he Telephone ~ Bell worked on the harmonic telegraph with his assistant, the electrician Thomas Watson. However, Bell thought of another idea; he believed that he could create a device that would transmit speech electrically. Secretly, he and Watson worked on this device. The first successful two-way conversation of clear speech by Bell and Watson was made on March 10, 1876 when Bell spoke into the device, “Mr. Watson, come here, I want to see you.” The men were jubilant after Watson heard the message and came to Bell’s side. Bell did not want to patent the device, since he believed that he needed to improve on it. However, Hubbard found out about the device and applied a patent for it without Bell’s permission. Coincidentally, Bell’s rival Elisha Gray applied for a patent for a telephone-like device, but since Bell’s patent was applied for first, he won the patent.
Automation has made a large part resulting in increases of free time and real wages appreciated by most workers in industrialized nations. Automation has greatly expanded production and lowered costs. Due to this, goods such as refrigerators, televisions, telephones, and other goods available to more people. With the importance of automation today, it is appreciated and recognized of its innovation in
Automation started out as an assembly line of workers doing the same repetitive task all day long. Some of the jobs were very boring, dirty, unpleasant, and possibly dangerous. After the introduction of the first robot in 1961, automation began to advance in ways people could only imagine.