Modeling and FPGA Implementation of a Thermal Peak Detection Unit for Complex System Design

Abstract

Abstract-This paper, presents the modelization and the implementation of a thermal peak detection unit for complex system design. The modelization step starts with modeling the formula of the heat source using Simulink/Matlab tool, is the main objective of this work. Then the input temperature, the angles, the distance as well as certain frequencies, will be obtained from this formula using the GDS (gradient Direction Sensor) method based on RO (Ring Oscillator). Before the transition to the implementation in FPGA board, the use of VHDL code is necessary to describe the thermal peak detection unit, in order to verify and validate the whole module. This work offers a solution to thermally induced stress and local overheating of complex systems design which has been a major concern for the designers during the design of integrated circuit. In this paper a DE1 FPGA board cyclone V family 5CSEMA5F31C6 is used for the implementation.

Simulation and FPGA Implementation of a Ring Oscillator Sensor for Complex System Design

“…This perfectly corresponds to our simulation which is made for the ring oscillator with 5 inverters. Now we need to validate these theoretical findings find by implementing a 5-inverter based sensor on an FPGA board that allows for different simulations, in [2] explains that more information can be found on the location of the thermal peak at the same frequency and the same temperature of the ring oscillators knowing that this type of ring oscillator sensor can only determine the necessary information if it receives sinusoidal signals, therefore a sinusoidal signal as an input.…”

“…To control the oscillation, an inverter can be replaced by a NAND gate, in order to stop or activate the oscillating system. Reference [2], [3], [4], [5] and [6] presents various techniques for varying the frequency of oscillation of the structure. These suggestions based on the voltage control of the delay generated by each cell, on the current control of the rise and falling time of each cell or on the controlled variation of the number of cells.…”

Towards Real-Time Monitoring of Thermal Peaks in Systems-on-Chip (SoC)

“…This source implies isotherms around it. The GDS method is a practical solution to locate the thermal peak in the simplest case of a single heat source [ 8 , 9 ], and the functional range of this GDS method is between −55 °C and 125 °C because, as the supply voltage decreases, the temperature dependence of the propagation delay can change from negative to positive for supply voltage levels between 0.7 V and 1.2 V [ 10 , 11 ]. However, the measured temperatures are not processed in real-time, which has an impact on the accuracy of the readings.…”

FPGA-Embedded Smart Monitoring System for Irrigation Decisions Based on Soil Moisture and Temperature Sensors

“…Engineers and researchers must play a more active role in solving water use problems in urban and rural areas. This work proposes an intelligent, dynamic, and automated monitoring system based on moisture and temperature sensor applied to irrigation systems for agricultural crops [15][16][17]. The system focuses on controlling the irrigation process automatically [18][19][20].…”