9 research outputs found
Elegant Vehicle Crossing Alerting System By Using Internet Of Things
In the last few years, several studies efforts had been executed to merge the Internet of Things (IoT) with smart metropolis environments. The reason to make a city “clever” is springing up as a likely approach to reduce the troubles due to the city population growth and fast urbanization. Attention additionally has targeted at the pedestrian crossings because of the truth they may be one of the maximum dangerous locations inside the delivery place. Information and Communications Technologies can virtually be a notable assist in growing infrastructures that might first-rate manage pedestrian crossing. This mission uses an onboard laptop that is typically termed as a microcontroller. It acts as the coronary heart of the mission. This onboard pc can correctly speak with the sensors being used. The controller is supplied with some internal memories to keep the code. This memory is used to unload some units of meeting commands into the controller. And the functioning of the controller is depending on the ones assembly instructions. When there's Vehicle arrival, the microcontroller indicators thru buzzer and clears off the movable platform. Limit switches help the microcontroller to evaluate the platform movement. The device detects any presence of people and controls the gadgets like lighting fixtures. The device uses LDR sensor for day or night time daylight sensing and moreover controls the electric devices like lighting, fans and many others using relay switches
EFFICIENT VLSI IMPLEMENTATION OF REDUNDANT BINARY ENCODING FOR DECIMAL MULTIPLICATION
This paper introduces two novel architectures for parallel decimal multipliers. Our multipliers are based on a new algorithm for decimal carry–save multioperand addition that uses a novel TCSD recoding for decimal digits. It significantly improves the area and latency of the partial product reduction tree with respect to previous proposals. We also present three schemes for fast and efficient generation of partial products in parallel. The recoding of the TCSD multiplier operand into minimally redundant signed–digit radix–10, radix–4 and radix–5 representations using new recoders reduces the complexity of partial product generation. In addition, SD radix–4 and radix–5 recodings allow the reuse of a conventional parallel binary radix–4 multiplier to perform combined binary/decimal multiplications
RECOGNITION AND REFINEMENT OF DISTORTED FINGERPRINTS
Although automatic fingerprint recognition technologies have rapidly advanced during the last forty years, there still exist several challenging research problems, for example, recognizing low quality fingerprints. Elastic distortion of fingerprints is one of the major causes for false non-match. While this problem affects all fingerprint recognition applications, it is especially dangerous in negative recognition applications, such as watch list and deduplication applications. In such applications, malicious users may purposely distort their fingerprints to evade identification. In this paper, we proposed novel algorithms to detect and rectify skin distortion based on a single fingerprint image. Distortion detection is viewed as a two-class classification problem, for which the registered ridge orientation map and period map of a fingerprint are used as the feature vector and a SVM classifier is trained to perform the classification task. Distortion rectification (or equivalently distortion field estimation) is viewed as a regression problem, where the input is a distorted fingerprint and the output is the distortion field. To solve this problem, a database (called reference database) of various distorted reference fingerprints and corresponding distortion fields is built in the offline stage, and then in the online stage, the nearest neighbor of the input fingerprint is found in the reference database and the corresponding distortion field is used to transform the input fingerprint into a normal one
DESIGN OF ROUNDING-BASED ACCURATE MULTIPLIER ON FPGS
In this paper we propose a Modified rounding based accurate multiplier (MROBA) which is more accurate than the conventional multiplier (ROBA). The main concept of multiplier depends on rounding of numbers. This multiplier can be applied for both signed and unsigned numbers. Three hardware implementations are proposed in which one implementation for unsigned and two for signed operations. The accuracy of the multiplier is compared with the conventional rounding based accurate multiplier (which are in 2n ) where the modified rounding based accurate multiplier gives an exact output for the given inputs (irrespective of 2n ) and various parameters like area, power delay, error significance, pass rates are been calculated and compared with conventional multiplier where, MROBA gives better results and with the MROBA MAC unit is implemented
LOW POWER TEST DATA COMPRESSION AND POWER MINIMIZATION METHODS FOR DIGITAL VLSI CIRCUITS
The measure of data required to test ICs are expanding quickly with the improvements of innovation. Likewise, outline of low-power superior compact registering gadgets has turned into a noteworthy target for the outline engineers. Notwithstanding, diminishment of power scattering is a basic parameter for configuration engineers, as well as for DFT builds as the framework devour considerably more power amid test than amid ordinary operation. In this way, low-power test data pressure for digital VLSI frameworks has turned into a noteworthy sympathy toward specialists and researchers of these ranges as of late. Because of the expansion in the test data volume and high test power, this range has dependably been effectively looked into on and various test data pressure and power decrease methods are presented. This part audits the significant test data pressure and power minimization systems proposed in the writing
LOW-POWER SELECTIVE PATTERN COMPRESSION TECHNIQUES IN DIGITAL VLSI CIRCUITS
In this paper, we discuss a productive test-autonomous pressure method for concurrent decrease of test data volume and test power for sweep based test applications. The pre-created test sets acquired from ATPG device are separated into two gatherings in view of the quantity of unspecified bits in every test set. Test pressure system is connected just to the gathering of test sets which contain more unspecified bits and the power decrease strategy is connected to the rest of the test sets. In the proposed approach, the unspecified bits in the pre-produced test sets are specifically mapped with 0s or 1s in view of their viability in diminishing the test data volume and power consumptions. We additionally display a basic decoder design for on-chip decompression. Exploratory results on ISCAS'89 benchmark circuits show the viability of the proposed procedure contrasted and other test-free pressure systems
HIGH-SPEED MULTIOUTPUT CLA-ADDERS USING 8-BIT MCC ADDER IN DOMINO LOGIC
Adders are the critical parts of processor circuits. The performance of processors increases by improving the performance and functionality of adders. Carry look-ahead (CLA) adder’s principle remains dominant in High-speed adder architectures, so the carry delay can be improved by calculating each stage in parallel. In this project by using an 8-bit Manchester carry chain (MCC) adder block in multi output domino CMOS logic. The even and odd carries of this adder are computed in parallel by two independent 4-bit carry chains. Implementation of wider adders based on the use of 8-bit adder module improves the operating speed compared to adders based on the standard 4-bit MCC adder module. Proposed design technique can be used for the implementation of 8, 16, 32 and 64 bit adders in multi output domino logic by using mentor graphics
DESIGN OF 4-BIT MCC ADDERS TO IMPROVE PROCESSOR SPEED IN VLSI
Enhance the processer speed by diminishing the convey delay furthermore decreased the power utilization. The testing paradigm of profound submicron advancements is low-power and fast correspondence computerized flag preparing chips. The execution of numerous applications as advanced flag handling relies on the execution of the math circuits to execute complex Algorithms. Quick number juggling calculation cells including adders are the most often and generally utilized circuits as a part of extensive scale combination (VLSI) frameworks. More over decrease of the power utilization is the basic worry in this field. Presently now a days there is at colossal interest for compact electronic gadgets, the architects are headed to take a stab at littler silicon region, higher speed, and longer battery life. Viper is the center component of complex number-crunching circuits like expansion, duplication, division, exponentiation, et cetera. Static CMOS circuits comprised of a corresponding PMOS as draw up and NMOS as draw down networks. Majority of the circuit outlines are as yet utilizing this as it gives low commotion, low power and quick speed. The principle preferred standpoint of CMOS over NMOS and bipolar is much littler power dissemination. Rationed circuit supplanted the pull up PMOS arrange by associating it to a ground. By interfacing PMOS to a ground, there is an extraordinary diminishment in the draw up transistors utilized when utilized as a part of an unpredictable plan. Dynamic circuit is like ratioed circuit however the PMOS is attached to a clock. PMOS is not generally on as it is controlled by the deliberately arranged clock. Range, deferral and power are the three for the most part acknowledged outline measurements to quantify the nature of a circuit or to think about different styles of circuits. The most generally utilized rationale [1] style is static correlative CMOS. The static CMOS style is truly an expansion of the static CMOS inverter to various data sources. In audit, the essential favorable position of the CMOS structure is vigor (i.e., low affectability to clamor), great execution, and low power utilization (with no static power utilization). As we will see, the greater part of those properties are persisted to substantial fan-in rationale entryways actualized utilizing a similar circuit topology. In this work, we endeavor to address these weaknesses of utilizing DFTL as a part of rationale operations with an examination on the ideal measuring proportion and a "timing window" strategy. For correlation purposes, the vitality versus delay (E-D) conduct of indistinguishable 64-bit Sklansky convey combine tree executed in DFTL, CDL, dynamic rationale, and static rationale doors is broke down
THE METHODS OF IMPROVING THE SPEED OF CLA ADDERS IN DOMINO LOGIC
Adders are the critical parts of processor circuits. The performance of processors increases by improving the performance and functionality of adders. Carry look-ahead (CLA) adder’s principle remains dominant in High-speed adder architectures, so the carry delay can be improved by calculating each stage in parallel. In this paper by using an 4-bit Manchester carry chain (MCC) adder block in multi output domino CMOS logic. The even and odd carries of this adder are computed in parallel by two independent 2-bit carry chains. Implementation of wider adders based on the use of 4-bit adder module improves the operating speed compared to adders based on the standard 4-bit MCC adder module. Proposed design technique can be used for the implementation of 4, 8, 16 and 32 bit adders in multi output domino logic by using mentor graphics