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The stability of the movement of an Automated Guided Vehicle (AGV) directly affects the safety of the delivered goods. Variation of loads during the delivery process is one of causes of the instability movement of an AGV. This research discusses the design and implementation of the AGV's speed control system to tackle the load and contour variation using Fuzzy Inference System integrated with PID...
Distribution of goods using Automated Guided Vehicle has been widely used by some of industry. The stability of vehicle movement directly affected to the safety of delivery. Load is one of major factors that caused instability movement of the vehicle. This research discusses the movement control algorithm of weighted vehicle by trolley using Fuzzy Inference System. The trolley as a load carrier of...
This paper presents a short-range UWB radar that extends the detection-range. The minimum detectable-range is shortened by the adoption of an LNA with fast-switching operation, whereas the maximum detectable-range is improved by a wideband transceiver. To minimize the power dissipation, the radar transceiver is turned on/off in synchronization with transmit pulses. The proposed radar operates at 4...
The authors report the development of an on-chip 500 MHz reference clock generator as a part of a clock manager for a field-programmable gate array. The generator is implemented in the form of an all-digital frequency locked loop (ADFLL) in architecture of low complexity and high modularity. For the development of the ADFLL, they propose a new circuit that employs two under-sampled 1-bit ΔΣ frequency-to-digital...
This paper presents a low power, low complexity IR-UWB radar transceiver for short range object detection. The transceiver provides robustness against false alarms without increasing power consumption, chip size, or complexity. The receiver (RX) and the transmitter (TX) dissipate only 50 pJ/pulse and 470 pJ/pulse under a 1.2V supply, respectively. The measured TX pulse spectrum, −58 dBm maximum power,...
This paper presents a low-complexity high-modularity low-voltage correlator for a 4.35-GHz coherent ultra-wide band impulse radio (UWB-IR) radar transceiver. The core circuit of the correlator is a current-reused four-quadrant multiplier with single-ended current-output. The correlator, which is implemented in a 0.18-μm CMOS technology, operates under 1.2 V while dissipating current of 186 μA. It...
This paper presents a low-voltage area-efficient four-quadrant CMOS multiplier reconfigured in a source-degenerated topology and designed as a part of a correlator for an integrated ultra-wideband (UWB) transceiver. The simulation based on a 0.18-mum CMOS technology shows that the multiplier offers 10.6-GHz bandwidth while dissipating 290 muA from a 0.9-V supply.
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