This invention is directed to an apparatus for monitoring devices. Thus, the present invention relates to standard parameter monitoring of any product to confirm the standard or rating.
RELATED ART
[002] In the manufacture of semiconductor devices, methods are performed for testing a device and determining if it is an acceptable device or if it contains defects before selling such a product to a customer. If the results of the test are within a manufacturer's tolerance levels, then the device is presumably a non-defective device and may be sold to a customer. If the results of the test are not within the manufacturer's tolerance levels, then the device is a defective device and cannot be sold to a customer.
[003] Reference may be made to the following
[004] Indian application No. 1 l/DEL/2009 relates to an apparatus for monitoring power and generating signal comprises at least one analog signal receiver including a plurality of analog signal channels for receiving a plurality of analog measurement signals representing power conditions for converting the analog measurement signals into digital signals including digital signal data and for buffering the digital signal data, a digital signal processor (DSP) which reads the digital signal data buffered by the analog signal receiver and processes the digital signal data by logging at least some of the digital signal data and by analyzing the digital signal data to detect power events, measurement devices for a high frequency voltage measurement and a low frequency voltage

measurement, which generate multiple signals and simultaneously monitor multiple devices and a post processing system including a communication device for communicating with a remote client and for transmitting said processed digital signal data to the remote location.
[005] US20130191053 relates to an intelligent electronic device with constant calibration capabilities for high accuracy measurements and method thereof are provided.
[006] US6459293 relates to a method and device for testing electronic devices on a chip. This may be accomplished by measuring current through a first electronic device and measuring a speed of the first electronic device. A determination may then be made whether the first electronic device is defective by comparing the measured current and the measured speed with a multi-parameter (i.e., IDDQ and FMAX) threshold level.
[007] US 10871382 directed to configuring a configurable hardware module to perform a measurement of a physical quantity. A configuration manager may receive an indication of the physical quantity and performance factor data describing the measurement of the physical quantity. The configuration manager may generate a hardware configuration of the hardware based at least in part on the indication of the physical quantity and the performance factor data.
[008] CN105403800 (A) provides an electric power system parameter determination method and device, belonging to the technical field of power grid excitation.

[009] US patent no 6,598,003 discloses a power and environmental condition monitoring system for monitoring power and environmental conditions at a site. The system comprises at least one analog signal receiver including a plurality of analog signal channels for receiving a plurality of analog measurement signals representing power and environmental conditions, for converting the analog measurement signals into digital signals including digital signal data, and for buffering the digital signal data.
[010] US patent no 7,315,790 discloses a system and method of quantifying voltage anomalies which may be used to quantify low frequency voltage transients such as the type caused by power factor correction (PFC) or similar events. Voltage anomalies include a sub-cycle disturbance in a voltage waveform having a frequency less than 15 kilohertz.
[Oil] US patent no 6,507,794 provides a system for monitoring power quality events of electrical energy to an energy meter via a service type. The system comprises a memory for storing reference information reflective of different service types, a digital signal processor for measuring characteristics of the electrical energy and a microcontroller for retrieving the reference information from the memory and comparing the measured characteristics to the reference information for the service type to determine the occurrence of power quality events. Their present a storage means comprising an EEPROM in the present invention storage means not only EEPROM but also PC since huge
amount of data can be stored & retrieved for future analysis. ^|w
$?■■/$ [012] US patent no 6,675,071 discloses a method of monitoring
variations. The monitoring method is carried out within an electrical

energy meter containing means for metering a quantity of electrical energy generated by a supplier and transferred via a power supply line to a load. This method is suitable only for line voltage waveform measurement.
[013] Publication no KR20040038130 discloses a power monitoring system having a position information system receiver to perform a phase angle comparison process and enhance the reliability & the accuracy by using a GPS time synchronization signal.
[014] Publication no KR20030038062 discloses a spectrum analyzer. In the analyzer, a GUI is mounted within a power amplifier for controlling and mounting characteristics of an IMD (intermodulation distortion), to minimize the amount of the IMD and identify a state of a channel by monitoring a final output of a linear amplifier. Further, a coupler is used for extracting partially the power from a power amplifier.
[015] Publication no CN1416197 discloses online monitoring system. The system includes the devices for online monitoring the quality of power supply and at least one server. The devices are allocated at the electrical power system and several consumer distribution networks for real time collection, analytical processing, displaying and transferring the quality of power supply of the power network monitored. In order to analytical process the parameters of the quality of power supply sent by the devices and provide the analyzed result for user browsing, the server through the telephone line and several said devices constitutes the monitoring network. The advanced technique such as double digital signal processing chips (DSP), the double ports RAM, the local FLASH with large capacitance etc. are adopted in the device. Publication ho

JP2002199579 detects and estimates abnormality in the quality of power and the causes of failures using a small amount of operation loads and a small memory capacity. In this invention, abnormality is calculated by comparing the actual effective voltage with the minimum and maximum.
[016] US publication no 20080215264 is high speed digital transient waveform detection system and method for use in an intelligent device. This system and method detects transients for input voltages in either phase to phase or phase to neutral measurements and permits a user to set threshold levels for detecting transients in input voltages. The system includes a field programmable gate array as a controller for managing transient detection.
[017] US publication no 20070179737 discloses a mobile apparatus and method for monitoring and controlling the detection of stray voltage anomalies. The mobile apparatus is comprises a detection system unit and an imaging system unit. These units provides streaming data of electric field measurements and corresponding video image frames of a particular scene being patrolled and examined for anomalies. Data from both the detection system unit and the imagining system unit are synchronized and provided to a video based graphical user interface (VGUI) to enable an operator of the VGUI with a "moving chart" graphical display of electric field strength overlaid on video image frames of a particular location in the scene at the time of the measurement. This is limited for only voltage anomalies.
[018] US publication no 20060259254 discloses systems and methods related to monitoring of energy usage on a power line. The data collector is preferably capable of (i) receiving data from and transmitting data to

the metering device over the power line, (ii) storing data received from the metering device over the power line, and (iii) receiving data from and transmitting data to a remotely located computer (preferably, a billing computer). This invention comprises electronic microprocessor-controlled digital electricity. Data collector is coupled to the metering device via the power line.
[019] US publication no 6,947,854 is about systems and methods related to monitoring of energy usage on a power line. In a preferred embodiment, this system comprises (a) an electronic microprocessor-controlled digital electricity metering device coupled to the power line and comprising a non-volatile non-battery-powered data-storage device, wherein the metering device is capable of interval metering and of receiving a data request and transmitting data in response to the request over the power line; and (b) a data collector (preferably, a transponder) coupled to the metering device via the power line. The data collector is preferably capable of (i) receiving data from and transmitting data to the metering device over the power line, (ii) storing data received from the metering device over the power line, and (iii) receiving data from and transmitting data to a remotely located computer (preferably, a billing computer). This invention comprises electronic microprocessor-controlled digital electricity. Data collector is coupled to the metering device via the power line.
[020] US publication no 7,342,507 (20060066456) and US patent no 7,006,934 are power quality detection, monitoring, reporting, recording and communication in a revenue accuracy electrical power meter is disclosed. Transient events, sags, swells, harmonic frequencies and symmetrical components are detected in the system. Incoming
■'; r'tn

waveforms are stored to memory. All recorded and computed data is moved to non-volatile storage via direct memory access transfer in the event that a power quality event jeopardizes the operating power of the meter. In this invention, all recorded and computed data is moved to non-volatile storage.
[021] US publication no 20080215264 discloses a system and a method for the detection and capture, and in particular for an ultra high speed detection and capture, of transients in input voltages by an intelligent electronic device. This system captures only transients in the input voltage.
[022] US publication no 2008228448 and 2007126412 discloses an apparatus and a method for measuring a waveform including ringing. This apparatus includes: a digital filter for removing a large-amplitude changing component from an input signal and for outputting a resultant output signal with a small-amplitude noise component left. This system only measures waveform but not voltage and frequency.
[023] US publication no 20070262799, US2006197697 and publication no JP2008157971 discloses an on-ship signal waveform measurement apparatus for, on multi-channels, measuring signal waveforms at detection points on fixed voltage wiring lines such as internal signals, power source voltages, ground voltages, well voltages, and substrate voltages of a semiconductor large-scale integrated circuit (LSI), and a signal waveform measuring system including the on-ship signal waveform measurement apparatus. The present invention is a sampling timing signal generator for use in the signal waveform measurement system.

[024] US publication no 20030058970 discloses a method for analyzing a signal. The system measures or gates an incoming waveform at time intervals dictated by a clock signal recovered from the incoming waveform. This system is suitable for only single channel measurement.
[025] Publication no JP2007205837 discloses a waveform measuring device capable of easily determining whether Go occurs or NoGo occurs in measured data at a specific time. This system is suitable for only single channel measurement.
[026] Publication no JP2006349345 discloses a measurement device capable of acquiring the measurement waveform to each acquisition memory based on the being delayed before and after trigger signals without changing the delay time. This system is suitable for only single channel measurement.
[027] US publication no 2005234665 discloses a waveform measuring apparatus that writes measurement data to a memory for waveform data acquisition based on a trigger signal. This system is suitable for only single channel measurement.
[028] Publication no JP2003344455, JP2002040056, JP2003248021 discloses waveform measuring devices. This measurement through these systems is only single channel source. There is no provision of measuring multiple channels simultaneously.
[029] Publication no JP2005351658 discloses waveform measuring device equipped with at least one channel of measurement part for outputting the measured waveform of the measurement object, for

storing the waveform from the measurement object in a first memory, and for displaying the waveform of the first memory on the display or storing in the memory means. Two memories are being used for the system.
[030] Publication no JP2006133061 discloses waveform measuring device equipped with a waveform storage means for storing information of a time change of an output signal from a measuring probe is equipped with a phenomenon information storage means for storing a discrimination name capable of discriminating the generated phenomenon and a prescribed operation content correlatively with the discrimination name. This system is suitable only for single channel waveform measurement but not for the simultaneous measurement of multiple channels waveform and voltage / frequency.
[031] Publication no JP2000147016 discloses a device which automatically acquires a waveform measured value to store it by using a measuring device with a video display. This system is suitable for only single channel measurement.
[032] US patent no 7,174,258 discloses a device for measuring electrical energy in an electric circuit. The device includes at least one sensor coupled with the electric circuit and operative to sense at least one electrical parameter in the electric circuit and generate at least one analog signal indicative thereof.
[033] US patent no 7,209,804 discloses a system and method for providing remote monitoring of a power device. The system includes a service device with a transceiver circuitry and a computation circuitry. In addition, the service device includes a display circuitry that displays

the computed electrical value in conjunction with operational parameters of the power device.
[034] US publication no 20040186670, 20030212512, 20030101008 (6,694,270) and 20030220752 are phasor monitoring systems and apparatuses for use with a distribution system for electricity wherein periodic three phase electricity is distributed in a plurality of circuits.
[035] US publication no 20080093100 discloses a system for power quality monitoring. The system includes first and second controllers coupled together with a communication channel. The first controller provides a first signal to the second controller and the second controller provides a second signal to the first controller in response. The second signal includes information about an electrical load. At least one of the first and second controllers can be integrated with an electrical outlet.
[036] Publication no 3832/CHENP/2006 discloses a method of compressing values of a waveform of a monitored electrical power signal. The method includes of acquiring data representative of periods of the waveform, decomposing the waveform of the power signal into a plurality of components, over a plurality of periods of the waveform compressing the values of at least some of the components over a plurality of periods, individually and storing these values and extent.
[037] This invention is restricted to Waveform only.
[038] Publication no 433/CAL/2002 discloses a power monitoring system for a wide region. The region to which electric power is supplied from an electric power supply organization is divided into some; area's
i .' :' 1(3 v- .-
,-l->i..'l5Ste

and electric power is supplied beach of the divided areas as a unit block.
[039] Publication no 2616/DEL/2004 discloses a system for dynamic power management in a distributed architecture system on a chip. The system comprises a means for dynamically defining the feasibility of entering a low power mode of operation, a means for entering or exiting safely from a low power state based on said feasibility, a means for decreasing the power centric communication between various processors, a means for decreasing the power centric communication between various processors and a means for increasing the low-power mode time.
[040] Publication no JP1253673 describes a highly accurate high-speed measurement output, by correcting errors based on a data obtained from a high-speed measuring device for measuring an analog input to be measured and a data of a characteristic data memory with an A/D converter.
[041] Publication no KR880000186B provides four input channels of digital data to a counter keeping a running count of the data from the metering devices. A buffer and latch select a running count in response to a chip select signal from a decoder, acting with a micro-processor to provide control signals and input the sample to microprocessor. In the microprocessor, the input sample has a prior sample value, stored in RAM, subtracted from it. The result is added to an interval sum stored in the RAM.
[042] US publication no 20080019068, 20080019067 and 20080125988 are current protection apparatuses and methods that

may include programmable current protection characteristics. A current protection apparatus may include a power distribution unit with power distribution outlets, each having a corresponding circuit breaker unit.
[043] US patent no 6,566,891 discloses a measurement system and a method of determining characteristics associated with a waveform that compensates for distortion associated therewith. The system includes a monitoring device that detects distortion in a waveform propagating along the transmission medium. This system is restricted only to waveform.
[044] Publication no WO0040976 discloses a method of monitoring variations carried out within an electrical energy meter containing means therein for metering a quantity of electrical energy generated by a supplier and transferred via a power supply line to a load. The method includes a first step of sensing a line voltage transferred via the power supply line to the load during the energy measurement time interval.
[045] Publication no JP6308167 measures an effective value and the like at every cycle of an input waveform. A signal to be measured is shaped to a rectangular waveform by a shaper circuit and a PLL (phase locked loop) circuit generates a sampling clock having frequency N times of and in sync with that of the rectangular waveform.
[046] Reference is made to an article by L H Sia, et al Al, Meas. Sci. Technol 18, 35-40, 2007. The article describes a digital signal processor (DSP) based waveform generator, which can generate a sine wave, up to 24 kHz, a square wave, up to 5 kHz and a triangular wave, up to 12 kHz. A DSP starter kit with Code Composer Studio has been used'in

the design of a waveform generator. The waveform generators can also produce periodic arbitrary waveforms and amplitude modulated signals. Two synchronized signals can be obtained by using the waveform generator too. The spectral components of the signals generated are found comparable with a commercially available signal generator. The total harmonic distortion of the sine wave generated is less than 0.6%.
[047] Reference may also be made to an article by Jin-Yi Lin, Master's Thesis, July 03, 2001. The thesis explains design and implementation of a digital signal processor based power quality monitoring device. Several event-triggering methods are studied and implemented to detect system disturbances. Simulation and test results indicate that the proposed design can meet the requirements for power measurements and transient event recording during steady and transient states. This system is restricted for only event-triggering methods.
[048] Reference may also be made to an article by Hung-Rung Chung, Master's Thesis, July 30, 2001. The paper explains design and implementation of a DSP based multi-function monitoring control system, operating for induction motor, intelligent battery charger and residual capacity estimator and uninterrupted power system to develop effectively and complete well.
[049] Reference may also be made to an article by (UK) National Instruments, Laboratory talk, 27 Mar 2001. The article talks that
National Instruments has announced its collaboration withf^fexa's
'."»; . i •• -: Instruments and Spectrum Digital in the development of the •fre.wj'TJ
J' *
C55X power optimization DSP starter kit (DSK), the industry's firs.t;DSP

design tool to offer designers incorporated test and measurement functionality The new kit incorporates virtual instrumentation-combining National Instruments USB-based measurement hardware with a power monitoring application based on Nl Lab view software - to deliver a complete set of power estimation and measurement tools for accurately planning, analyzing, managing and optimizing real-time power consumption.
[050] Reference may also be made to an article by Lakshmikanth, A.; Morcos, M.M., Digital Object Identifier, Volume 50, Issue 3, Page(s) 724 -731, Jun 2001. This paper presents a case study in which a DSP-based solution was developed for a power quality monitoring application is presented. Through the case study, the issues involved in adopting system architecture, selecting a DSP and developing software for an application are discussed. The methodology described in this paper presents broad guidelines which can be intelligently applied to develop DSP-based solutions to meet specific requirements.
[051] Reference may also be made to an article by Kang Wei et al, Power Electronics and Motion Control Conference (IEEE), 2006, Page 420 - 424, Aug. 2006. The article explains a power quality monitoring system based on DSP and PCI bus technique. This system combines the powerful operational capability of DSP chip and the abundant resource of the computer together. It can monitor the five targets of powerjquality real-time and storage the history data with database technique. Test proved that this monitoring system can meet the requirement'of the modern power quality monitoring.
[052] Reference may also be made to an article by Birdi, Harjit Singh, Thesis, 8 August 2006. This thesis describes a technique to automate

the classification and analysis of the power quality events using relay recorded data. The technique uses voltage duration and magnitude of three phases to detect and classify the events. The classified results are then presented in a user-friendly graphical form. Fast Fourier Transform (FFT) is used to estimate the fundamental frequency and harmonic components in power systems. The graphical user interface of the power quality analysis tool is developed using Microsoft Visual C++ IDE and the algorithms are programmed in C++.
[053] Reference may also be made to an article by Ukai et al, Digital Object Identifier Volume 50, Issue 6, Page(s): 1159 - 1164, Dec 2003. This paper presents the advanced measurement system of harmonics in a wide-area distribution system. The measurement unit at each point in the distribution system consists of a digital signal processor as a high-speed processor and a global positioning system as a synchronization measurement. These units as terminals at multipoint in the distribution system are connected to the central monitoring station by the Internet. By using this system, the harmonic flows in the distribution system are measured and hence, harmonic modeling can be realized in real time.
[054] Reference may also be made to an article by Aramendi et al, Digital Object Identifier Volume 2, Page(s) 908 - 912 vol.2, May 1996. This paper presents a new system for two important applications of digital recording in real time characterization of electric signals. The first one consists of a digital recorder of the time evolution of voltage signals working in two modes: recording directly the evolution of the^s^aal waveform or the evolution of the main electric parameters: RMS^pbtye'r components and frequency values. The second application consist's pf

a digital recorder of voltage dips. Both applications are based on the same hardware that includes a PC with two DSP cards, which make possible a real time working multichannel system.
J055] Reference may also be made to an article by Vaclav Matz et-,al, Instrumentation and Measurement Technology Conference Poland, May 1-3, 2007. This paper presents a system for detection and classification of power quality (PQ) voltage disturbances. The proposed system applies the following methods to detect and classify the PQ disturbances: digital filtering and mathematical morphology are used to detect and classify transients and waveform distortions, while in case of short and long duration disturbances (such as sags, swells and interruptions) the analysis of the RMS value of the voltage is employed. The decision and classification process is based on disturbances knowledge base of an expert system.
[056] Reference may also be made to an article by Emilio Ghiani et al, The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol 23, Issue 1, 92 - 103, 2004. This paper deals with the uncertainty in digital measurement systems designed for power quality applications. The main goal of this work is to evaluate such uncertainty by means of a Monte Carlo method recently proposed in the literature. The accuracy of the measurement result obtained with a DSP-based instrument for power quality metering depends on the behavior of the devices located in both the conditioning block and A/D conversion stage: it is thus necessary to consider the uncertainties introduced by each component of the system and the propagation pf their effects through the measurement chain. Here, the uncertainly %

estimated starting from the technical specifications provided by the manufacturers of these devices.
[057] Reference may also be made to an article by Sen Ouyang, International Journal of Electrical Power & Energy Systems, February 2007. The article explains a new fast approach to the detection of transient disturbances in a noisy environment. In the proposed approach, the appropriate morphologic structure element, new proper combination of the erosion and the dilation morphologic operators can enhance the MM's capability. Furthermore, the soft-threshold de-noising method based on the wavelet transform (WT) was used for reference. This method possesses the following advantages: high calculation speed, easy implementation of hardware and better use value.
[058] Reference may also be made to an article by Tao Lin and Alexander Domijan, Jr., Electric Power Systems Research, August 2006. The article explains three criteria for selecting or developing an appropriate measurement technique. Based on these criteria, the performances of the measurement techniques in common use or newly developed are analyzed. A novel complex filter and the associated recursive algorithm are further presented in this paper, which achieve both high measurement accuracy in all service conditions and low computational complexity.
[059] Reference may also be made to an article by P. K. Dash, International Journal of Electrical Power & Energy Systems, October 1999. The article explains a new approach for the classification lof transient disturbance waveforms in a power system by using aJFpurier linear combiner and a fuz2y expert system. The measured vq&^gepB'r

current waveforms at a distribution bus are passed through a\::fouri