A high-performance ultrasonic system for the simultaneous transmission of data and power through solid metal barriers

Lawry, T. J.; Ashdown, Jonathan; Scarton, H. A.; Saulnier, G.J.

doi:10.1109/tuffc.2013.2550

Cited by 74 publications

(65 citation statements)

References 17 publications

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“…The LOS channel impulse response is convolution of the three system impulse response [9]. (ICMEMTC 2016) Transducer model.…”

Section: Fig 1 the Model Of Ultrasonic Communication Systemmentioning

confidence: 99%

Echo Cancellation of Multipath Channel in Ultrasonic Through-steel Communication System

Liu¹,

Lv²,

Guo³

2016

Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control

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Abstract. Presence of echo is one of the challenges when using ultrasonic for transmitting data through the steel. The model of multipath channel in the ultrasonic through-steel communication system is described and the method of echo cancellation is analyzed in this paper. This method applies a pre-distortion filter to mitigate the effects of echo in order to decrease the complexity of the receiver. The method of echo cancellation is simulated in MATLAB, and simulation results show that echo is suppressed greatly comparable to the line-of-sight received signal in the ultrasonic communication system. The results show the validity.

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“…The LOS channel impulse response is convolution of the three system impulse response [9]. (ICMEMTC 2016) Transducer model.…”

Section: Fig 1 the Model Of Ultrasonic Communication Systemmentioning

confidence: 99%

Echo Cancellation of Multipath Channel in Ultrasonic Through-steel Communication System

Liu¹,

Lv²,

Guo³

2016

Proceedings of the 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control

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“…Lawry et al, presented a UTMWPT system with a CF-DFBR as an AC-DC converter [17,18]. The transducers operated at about 1 MHz.…”

Section: Introductionmentioning

confidence: 99%

“…Figure 2 also shows that the quality factor (Q) values of the transducers are smaller than unit at the resonant frequencies. The low Q values make the system high-loss but reduce the resonant frequency consistency requirements on the TX and RX transducers [17].…”

Section: Introductionmentioning

confidence: 99%

An Ultrasonic Through-Metal-Wall Power Transfer System with Regulated DC Output

Yang

2018

Applied Sciences

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Featured Application: Wirelessly powering sensors and circuits enclosed in hermetic metal containers.Abstract: This paper presents a novel and efficient system capable of transmitting medium-power electric energy through a solid metal wall and generating a regulated direct current (DC) output. The electric power is transmitted using radio frequency (RF) ultrasound without physical penetration. An RF alternating current to direct current converter with input impedance matching is used to convert the transmitted RF signal to a DC output, which is directly suitable as a power supply for electronic devices. The system is constructed from commercial off-the-shelf components, and a computer-controlled measurement method is designed to test the effectiveness of the full system. The measurement results show that the system is able to transfer power through a 40-mm-thick stainless steel plate and generate 5-V, 15.7-W regulated DC output power with an overall power transfer efficiency of 27.7%. In addition, the effectiveness of the system is successfully demonstrated by powering ARM ® evaluation boards with liquid-crystal display panels. A discussion of potential enhancements that could be made to improve the transfer capability and efficiency of the system is also presented. This system could be applied to improve safety and preserve structural integrity in many industrial and military applications, such as submarines, space crafts, planes, nuclear storage facilities, etc.

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“…Prior research has shown that echoing of acoustic energy within the channel leads to significant inter-symbol interference when transmitting at a high data rate [3]. An echo cancelation technique was developed that uses a predistortion filter at the transmitting to cause destructive interference and partial cancelation of echoes at the receiver [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Identification and Communication Simulation of an Ultrasonic Through-metal-wall Channel

Tian¹,

Yang²,

Hou³

2017

Proceedings of the 2nd International Conference on Computer Engineering, Information Science &Amp; Application Technology (ICCI

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Abstract. Many industrial applications need the technologies of power and data transmission through metal barriers without physical penetrations. The reverberation of the acoustic signals in the channel can produce multipath distortion with a significant delay spread that introduces severe inter-symbol interference into the signal. To overcome this shortage, we did a more detailed study of the channel's characteristics. The voltage transfer function and impulse response of the same channel were obtained. The response signal was used for system identification, and then a more accurate model of the ultrasonic channel was built. An equalizer was directly derived based on the identified model. The equalizer's superb results on echoes cancellation is simulated and verified using ASK modulation schemes in Simulink. The results show that data rates on the order of 100kbps at least. By choosing a discrete time representation of the system, the resulting equalizer is readily implemented on FPGA.

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A high-performance ultrasonic system for the simultaneous transmission of data and power through solid metal barriers

Cited by 74 publications

References 17 publications

Echo Cancellation of Multipath Channel in Ultrasonic Through-steel Communication System

Echo Cancellation of Multipath Channel in Ultrasonic Through-steel Communication System

An Ultrasonic Through-Metal-Wall Power Transfer System with Regulated DC Output

Identification and Communication Simulation of an Ultrasonic Through-metal-wall Channel

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