Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881375
T. Polonelli, Simon Schläpfer, M. Magno
Indoor localization and context-awareness are becoming two of the key technologies for a large variety of applications. Real-time locating systems with centimeter accuracy and low power consumption have recently been made available by employing the Ultra WideBand (UWB) technology. Since 2015, Decawave has produced commercial UWB integrated circuits, exploiting time-of-flight measurement techniques to estimate the distance between two agents. This work presents a performance study between two Decawave transceivers, the DW1000 and the new DW3000 released in 2020. The testing space includes areas under line-of-sight and diverse non-line-of-sight conditions caused by the reflection of the UWB radio signals across various obstacles. Finally, we analyze the power consumption in distinct configurations, comparing the two devices. Results show that the two have similar precision in measurement ranges above one meter, while the DW3000 performs, on average, 33.2% better considering shorter distances. Moreover, the new transceiver features reduced power consumption by almost 50% during real-time measurements reaching an average value of 55 mW.
{"title":"Performance Comparison between Decawave DW1000 and DW3000 in low-power double side ranging applications","authors":"T. Polonelli, Simon Schläpfer, M. Magno","doi":"10.1109/SAS54819.2022.9881375","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881375","url":null,"abstract":"Indoor localization and context-awareness are becoming two of the key technologies for a large variety of applications. Real-time locating systems with centimeter accuracy and low power consumption have recently been made available by employing the Ultra WideBand (UWB) technology. Since 2015, Decawave has produced commercial UWB integrated circuits, exploiting time-of-flight measurement techniques to estimate the distance between two agents. This work presents a performance study between two Decawave transceivers, the DW1000 and the new DW3000 released in 2020. The testing space includes areas under line-of-sight and diverse non-line-of-sight conditions caused by the reflection of the UWB radio signals across various obstacles. Finally, we analyze the power consumption in distinct configurations, comparing the two devices. Results show that the two have similar precision in measurement ranges above one meter, while the DW3000 performs, on average, 33.2% better considering shorter distances. Moreover, the new transceiver features reduced power consumption by almost 50% during real-time measurements reaching an average value of 55 mW.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117084773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881385
Christian Brunner, Rainer Hagl
The measurement of torque is often based on a measured deformation, which results from a torsional load acting on the sensor. Strain gauges are standard devices for quantifying the deformation. In this paper, a device determining the torque based on a measured relative distortion of a torsional flexible body is presented. Two position measuring devices are used to determine the relative distortion. The design criteria for the flexible body of the sensor are discussed. A prototype using the proposed measurement principle was built up and analyzed regarding the achievable accuracy of the torque measurement at pure torsional loads and also under disturbing loads. The results show a high accuracy in the torque measurement with a linearity error in the range of 0.11% of the maximum torque. The influence of disturbing loads on the torque measurement can be neglected, which is an advantage compared to other torque sensors.
{"title":"High accuracy torque measurement with position measuring devices","authors":"Christian Brunner, Rainer Hagl","doi":"10.1109/SAS54819.2022.9881385","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881385","url":null,"abstract":"The measurement of torque is often based on a measured deformation, which results from a torsional load acting on the sensor. Strain gauges are standard devices for quantifying the deformation. In this paper, a device determining the torque based on a measured relative distortion of a torsional flexible body is presented. Two position measuring devices are used to determine the relative distortion. The design criteria for the flexible body of the sensor are discussed. A prototype using the proposed measurement principle was built up and analyzed regarding the achievable accuracy of the torque measurement at pure torsional loads and also under disturbing loads. The results show a high accuracy in the torque measurement with a linearity error in the range of 0.11% of the maximum torque. The influence of disturbing loads on the torque measurement can be neglected, which is an advantage compared to other torque sensors.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130142537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881379
Shilpa Susan George, V. JagadeeshKumar
For sensing the level of a liquid in an insulating container, a three-coil sensor is proposed. One of the coils is shorted and made to float on the surface of the liquid. The other two coils of identical trapezoidal (wedge) shape are fixed on the opposite walls of the container. The two trapezoidal coils are positioned such that the induced emf e1 in one coil increases with the position of the floating coil and the induced emf e2 in the other coil decreases with the position of the floating coil. It is shown here that the ratio-metric evaluation of the induced emfs as [(e1 – e2) / (e1 + e2)] provides an output that linearly varies with the position of the floating coil and thus senses the liquid level. The proposed technique is evaluated analytically, and its efficacy demonstrated through simulation studies. Results obtained from a prototype unit built and tested establishes the practicality of the proffered sensor. It is found that the proposed sensor suffers from end-effects with worst-case error of 3%. The proposed sensor is best suited for liquid level measurement in sealed containers.
{"title":"Three-Coil Sensor for Liquid Level Measurement","authors":"Shilpa Susan George, V. JagadeeshKumar","doi":"10.1109/SAS54819.2022.9881379","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881379","url":null,"abstract":"For sensing the level of a liquid in an insulating container, a three-coil sensor is proposed. One of the coils is shorted and made to float on the surface of the liquid. The other two coils of identical trapezoidal (wedge) shape are fixed on the opposite walls of the container. The two trapezoidal coils are positioned such that the induced emf e1 in one coil increases with the position of the floating coil and the induced emf e2 in the other coil decreases with the position of the floating coil. It is shown here that the ratio-metric evaluation of the induced emfs as [(e1 – e2) / (e1 + e2)] provides an output that linearly varies with the position of the floating coil and thus senses the liquid level. The proposed technique is evaluated analytically, and its efficacy demonstrated through simulation studies. Results obtained from a prototype unit built and tested establishes the practicality of the proffered sensor. It is found that the proposed sensor suffers from end-effects with worst-case error of 3%. The proposed sensor is best suited for liquid level measurement in sealed containers.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"66 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127657054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881369
Poojitha Makireddy, Prashanth Vooka
This paper presents a novel capacitive sensor-based proximity detection system that can sense and determine a human being’s presence and the direction of motion. The proposed system consists of a coplanar-based three-electrode capacitive sensor and a sensor interface circuit that can accurately determine the direction of motion of humans and remain insensitive to other objects. The capacitive sensor structure is easily mountable on the side jamb of a door. Due to the shielding effect, the sensor capacitance value decreases, and a unique pattern in the sensor output is observed, based on the direction of motion of the human beings passing through the doorway. A simulation study conducted in ANSYS Multiphysics-based environment with copper electrodes of length 30 cm and width 1.2 cm will give a detection range of 50 cm. The same is experimentally verified through a prototype developed in the laboratory and the overall power consumption of the proposed system is around 27 mW. Rigorous tests are conducted to evaluate the performance of the system, and the experimental results indicate the versatility and the potential of the system.
{"title":"A three-electrode capacitive based sensing system to determine the direction of motion of humans","authors":"Poojitha Makireddy, Prashanth Vooka","doi":"10.1109/SAS54819.2022.9881369","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881369","url":null,"abstract":"This paper presents a novel capacitive sensor-based proximity detection system that can sense and determine a human being’s presence and the direction of motion. The proposed system consists of a coplanar-based three-electrode capacitive sensor and a sensor interface circuit that can accurately determine the direction of motion of humans and remain insensitive to other objects. The capacitive sensor structure is easily mountable on the side jamb of a door. Due to the shielding effect, the sensor capacitance value decreases, and a unique pattern in the sensor output is observed, based on the direction of motion of the human beings passing through the doorway. A simulation study conducted in ANSYS Multiphysics-based environment with copper electrodes of length 30 cm and width 1.2 cm will give a detection range of 50 cm. The same is experimentally verified through a prototype developed in the laboratory and the overall power consumption of the proposed system is around 27 mW. Rigorous tests are conducted to evaluate the performance of the system, and the experimental results indicate the versatility and the potential of the system.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131177449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881384
K. Husby, Christian Eirik Johnsen, V. Ringset
Alternating current field measurement is a long lasting industry standard for eddy current non-destructive testing. This method is often preferred when searching for surface breaking cracks on metals and welds. The challenges of this method are reduced accuracy at high liftoff, vulnerability to high surface roughness and variable metal permeability.In this paper an inline dual coil magnetic probe is presented. Signal processing methods from the communication community such as broadband calibration and matched filtering are applied to improve signal to noise ratio.The proposed solution improves the SNR by 3 dB when compared to other existing equipment. Moreover, the solution also becomes resilient to surface roughness, high liftoff and variable permeability. In the end the methods found has the future potential to improve detection of cracks.
{"title":"Presenting a novel NDT Eddy Current probe for crack detection on rough welds and steel with variable permeability","authors":"K. Husby, Christian Eirik Johnsen, V. Ringset","doi":"10.1109/SAS54819.2022.9881384","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881384","url":null,"abstract":"Alternating current field measurement is a long lasting industry standard for eddy current non-destructive testing. This method is often preferred when searching for surface breaking cracks on metals and welds. The challenges of this method are reduced accuracy at high liftoff, vulnerability to high surface roughness and variable metal permeability.In this paper an inline dual coil magnetic probe is presented. Signal processing methods from the communication community such as broadband calibration and matched filtering are applied to improve signal to noise ratio.The proposed solution improves the SNR by 3 dB when compared to other existing equipment. Moreover, the solution also becomes resilient to surface roughness, high liftoff and variable permeability. In the end the methods found has the future potential to improve detection of cracks.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132596374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881340
Lisa Petani, Dennis Wickersheim, L. Koker, M. Reischl, U. Gengenbach, C. Pylatiuk
Medical gases, such as ozone, are increasingly used for treatment of chronic wounds and herniated disks. For the further establishment in clinical routine, the in-vivo ozone concentration in the wound or disk has to be measured before, during, and after therapy. We present an experimental setup to monitor the ozone gas concentration in a measurement chamber. With the experimental setup, we enable a comparison between commercial sensors and, for example, new types of inkjet-printed sensors for ozone concentrations up to 1000 ppm. Thereby, new sensors can be calibrated, evaluated, and characterised. As the first application of this setup, we evaluated screen-printed sensors. This establishes a foundation for the broad, safe application and further research of ozone therapy.
{"title":"Experimental Setup for Evaluation of Medical Ozone Gas Sensors","authors":"Lisa Petani, Dennis Wickersheim, L. Koker, M. Reischl, U. Gengenbach, C. Pylatiuk","doi":"10.1109/SAS54819.2022.9881340","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881340","url":null,"abstract":"Medical gases, such as ozone, are increasingly used for treatment of chronic wounds and herniated disks. For the further establishment in clinical routine, the in-vivo ozone concentration in the wound or disk has to be measured before, during, and after therapy. We present an experimental setup to monitor the ozone gas concentration in a measurement chamber. With the experimental setup, we enable a comparison between commercial sensors and, for example, new types of inkjet-printed sensors for ozone concentrations up to 1000 ppm. Thereby, new sensors can be calibrated, evaluated, and characterised. As the first application of this setup, we evaluated screen-printed sensors. This establishes a foundation for the broad, safe application and further research of ozone therapy.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130423976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881245
Mahmoud Altrabolsi, C. Labaki, I. Elhajj, Daniel C. Asmar
Electrical Capacitance Tomography (ECT) for coplanar electrodes has been used in very few applications with non-destructive single side access to detect changes in the sensing domain. In such applications, the image reconstruction algorithms are usually applied to image a horizontal cross section of the sensing domain and are not always accurate. In this paper, we propose performing image reconstruction for a vertical cross section of the sensing domain. Inspired by ECT solutions applied to pipes, we use machine-learning to estimate the presence (classification) and thickness (regression) of oil layers between saline ice layer and seawater. Results on simulated data demonstrated good performance in classification with an f1 score exceeding 90%, as well as in regression with a mean percentage error of -8.148%, a mean squared error of 14.952, and a mean absolute error (MAE) of 2.933 mm for a sensing domain 45 mm deep.
{"title":"Detection and Thickness Estimation of Oil under Saline Ice Using Machine Learning","authors":"Mahmoud Altrabolsi, C. Labaki, I. Elhajj, Daniel C. Asmar","doi":"10.1109/SAS54819.2022.9881245","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881245","url":null,"abstract":"Electrical Capacitance Tomography (ECT) for coplanar electrodes has been used in very few applications with non-destructive single side access to detect changes in the sensing domain. In such applications, the image reconstruction algorithms are usually applied to image a horizontal cross section of the sensing domain and are not always accurate. In this paper, we propose performing image reconstruction for a vertical cross section of the sensing domain. Inspired by ECT solutions applied to pipes, we use machine-learning to estimate the presence (classification) and thickness (regression) of oil layers between saline ice layer and seawater. Results on simulated data demonstrated good performance in classification with an f1 score exceeding 90%, as well as in regression with a mean percentage error of -8.148%, a mean squared error of 14.952, and a mean absolute error (MAE) of 2.933 mm for a sensing domain 45 mm deep.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133246061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881253
Bahareh Chimehi, Bruce Wallace
This paper presents the theory, design, and development of force sensor system using load cells that can provide force magnitude and direction from the handle of a mobile system. A novel mechatronic based patient transfer system is being created as an alternative to sling transfers. This new system is heavy, and staff will require power assistance to move and position the transfer system. Handles on the system provide the expected push bars that staff currently use on gurneys and the proposed sensor system allows the forces on handles to be measured as inputs to a power assist system. The results shown that the sensor provides a linear relationship for force magnitude and allows for the measurement of direction of force with minimal error without requiring detailed calibration of each of the sensors. The results are presented for forces in 8 different directions for a range of force magnitudes. Results show that force magnitude can be estimated with an average standard deviation of 10% and the direction can be measured with an approximately standard deviation of 1%.
{"title":"Load Cell Force and Direction Sensor System for Push Bars","authors":"Bahareh Chimehi, Bruce Wallace","doi":"10.1109/SAS54819.2022.9881253","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881253","url":null,"abstract":"This paper presents the theory, design, and development of force sensor system using load cells that can provide force magnitude and direction from the handle of a mobile system. A novel mechatronic based patient transfer system is being created as an alternative to sling transfers. This new system is heavy, and staff will require power assistance to move and position the transfer system. Handles on the system provide the expected push bars that staff currently use on gurneys and the proposed sensor system allows the forces on handles to be measured as inputs to a power assist system. The results shown that the sensor provides a linear relationship for force magnitude and allows for the measurement of direction of force with minimal error without requiring detailed calibration of each of the sensors. The results are presented for forces in 8 different directions for a range of force magnitudes. Results show that force magnitude can be estimated with an average standard deviation of 10% and the direction can be measured with an approximately standard deviation of 1%.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123378903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1109/SAS54819.2022.9881339
An-Tai Hsiao, Chun-Hsien Liu, Po-Hsuan Chen, Yaoqing Liu, Wei-Chi Wang, T. Sang, Chia-Ming Tsai, Gray Lin, Jiun-In Guo, Sheng-Di Lin
High-performance light detection and ranging (LiDAR) modules are highly demanded for advanced driving assistance system and autonomous driving. The high power level of emitter required for long-distance ranging is one of the key issues to be addressed to realize commercially affordable vehicle LiDAR. In this work, for the first time, we demonstrate a low-cost real-time LiDAR module by using CMOS-fabricated 64x128-pixel single-photon avalanche diode (SPAD) array, a 940-nm photonic-crystal surface-emitting laser (PCSEL), and a FPGA card for control and signal processing. Thanks to the high-sensitivity of SPAD and small divergence angle of PCSEL, a 60-m 3-D imager has been realized with a low laser peak power of ~0.5 W. The ranging distance and frame rate are 60 m and 10 frames per second, respectively, for the target reflectivity of 10% - 90% and the sunlight condition of 0 – 50k lux. Our work reveals the great potential of these two intriguing devices for making low-cost high-performance vehicle LiDARs.
{"title":"Real-time LiDAR module with 64x128-pixel CMOS SPAD array and 940-nm PCSEL","authors":"An-Tai Hsiao, Chun-Hsien Liu, Po-Hsuan Chen, Yaoqing Liu, Wei-Chi Wang, T. Sang, Chia-Ming Tsai, Gray Lin, Jiun-In Guo, Sheng-Di Lin","doi":"10.1109/SAS54819.2022.9881339","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881339","url":null,"abstract":"High-performance light detection and ranging (LiDAR) modules are highly demanded for advanced driving assistance system and autonomous driving. The high power level of emitter required for long-distance ranging is one of the key issues to be addressed to realize commercially affordable vehicle LiDAR. In this work, for the first time, we demonstrate a low-cost real-time LiDAR module by using CMOS-fabricated 64x128-pixel single-photon avalanche diode (SPAD) array, a 940-nm photonic-crystal surface-emitting laser (PCSEL), and a FPGA card for control and signal processing. Thanks to the high-sensitivity of SPAD and small divergence angle of PCSEL, a 60-m 3-D imager has been realized with a low laser peak power of ~0.5 W. The ranging distance and frame rate are 60 m and 10 frames per second, respectively, for the target reflectivity of 10% - 90% and the sunlight condition of 0 – 50k lux. Our work reveals the great potential of these two intriguing devices for making low-cost high-performance vehicle LiDARs.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129239737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-13DOI: 10.1109/SAS54819.2022.9881342
Daan Delabie, Bert Cox, L. D. Strycker, L. V. D. Perre
The proposed infrastructure, named Techtile, provides a unique R&D facility as features dispersed electronics enables transmission and capturing of a multitude of signals in 3D. Specific available equipment that enhances the design process from smooth prototyping to a commercial product is discussed. The acoustic parameters of the room, particularly the reverberation and ambient noise, are measured to take these into account for future innovative acoustic indoor positioning and sensing systems. This can have a positive influence on the accuracy and precision. The wooden construction represents an acoustically challenging room for audible sound with a maximum measured RT60 value of 1.17s at 5kHz, which is comparable to the reverberation properties of a lecture or small concert hall. For ultrasound it is rather challenging due to the present ambient noise sources. In general, the Techtile room can be compared with a home or quiet office environment, in terms of sound pressure levels (SPLs). In addition to the acoustic properties, possible research and development options are discussed in combination with the associated challenges. Many of the designs described are available through open source.
{"title":"Techtile: a Flexible Testbed for Distributed Acoustic Indoor Positioning and Sensing","authors":"Daan Delabie, Bert Cox, L. D. Strycker, L. V. D. Perre","doi":"10.1109/SAS54819.2022.9881342","DOIUrl":"https://doi.org/10.1109/SAS54819.2022.9881342","url":null,"abstract":"The proposed infrastructure, named Techtile, provides a unique R&D facility as features dispersed electronics enables transmission and capturing of a multitude of signals in 3D. Specific available equipment that enhances the design process from smooth prototyping to a commercial product is discussed. The acoustic parameters of the room, particularly the reverberation and ambient noise, are measured to take these into account for future innovative acoustic indoor positioning and sensing systems. This can have a positive influence on the accuracy and precision. The wooden construction represents an acoustically challenging room for audible sound with a maximum measured RT60 value of 1.17s at 5kHz, which is comparable to the reverberation properties of a lecture or small concert hall. For ultrasound it is rather challenging due to the present ambient noise sources. In general, the Techtile room can be compared with a home or quiet office environment, in terms of sound pressure levels (SPLs). In addition to the acoustic properties, possible research and development options are discussed in combination with the associated challenges. Many of the designs described are available through open source.","PeriodicalId":129732,"journal":{"name":"2022 IEEE Sensors Applications Symposium (SAS)","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121997518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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