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Electricity transmission and distribution in most of the countries are needed to be improved by the construction of new networks. These improvements are not that much cost effective and if cost is tried to be reduced then the quality and efficiency of the system is compromised which is not suitable at all for the current system. In addition obtaining planning permission and carrying out construction is so much difficult in busy cities. The main objective of this research is to monitor and control frequency deviation. A simple MATLAB controlling and monitoring system is being developed and the ARDUINO DAQ card is used to calculate the frequency deviation. The purpose of respective research is basically based on a dummy load which is used to show the usage of particular equipment’s used in a home such as fridge, freezer ,oven , lighting system, and domestic wet appliances such as washer dryer  which are attached these to a DAQ and then to a controlling and monitoring GUI MATLAB based. However, this research is focused on the monitoring and controlling of the frequency deviation.

After launch of a spacecraft, the role of the ground I. INTRODUCTION station software becomes critically important. The command and An important part of the complete satellite mission design data handling software issues telecommands to the spacecraft, process is the design of the ground software needed to monitor and retrieves, displays and stores telemetry from the spacecraft. and control the spacecraft. Besides modular and independentThe key feature of the dynamic design of the software described in this paper lies in the independence of the software graphical test achcsoft ware modle,acul communiati with user interface (GUI) from the number of subsystems, telemetry the spacecraft's onboard data handling system finally verifies channels and telecommands required at the design time and the design.number of remote users at runtime. This independence enables to Ground station software is highly spacecraft dependent and software to produce various graphical user interfaces with a communication protocol dependent The ground station unique number of telemetry channels and telecommands for users software discussed in this paper has been developed as a with different needs, preferences or privileges. follow-on to a student project [1] aimed at developing an The dynamic software layout is definable in the form of a onboard data handling system for a Pico-satellite: PALMSAT, configuration database. The data file is read by software at the a lkg satellite being constructed by students at the Surrey time of initialization and user interface is built as defined in the Space Centre (SSC) at the University of Surrey.file. Out-of-limit values for every telemetry channel areThe main objective of command and data handling ground highlighted as defined in the configuration database. The user Tation ofw e is o command a data c ation link interface is powerful enough display a single telemetry channel station software is to establish a reliable coLmmunication link into multiple units by simply defining different parameters for the with the onboard data handling system of PALMSAT, issue a channel. The graphical user interface is designed using multiple proper time tagged sequence of desired telecommands, and pages, with a tables of telemetry and telecommands on each page. receive, record and display telemetry channel information from Every telemetry and telecommand database entry contains page the sensors onboard the spacecraft. Reliable communication number, row and column of position, caption, unit, channel establishment includes implementation of error detection and number, data type, minimum and maximum values and automatic repeat request (ARQ). These schemes and standards calibration equation for the channel to convert raw digital values are well defined and mutually acknowledged by ground station to standard units. User account information and privileges in the data handling and spacecraft data handling software.form of allowed channels are also stored in the database. The reliability of the software is implemented by inh...

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