SIL-Radar-based Rat Detector for Warehouse Management System

Juan, Pin-Hsun; Wang, Fu-Kang; Tzeng, Yi-Ting

doi:10.1109/imbioc.2019.8777772

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Experimental animals are often selected as target animals in radar measurements because of their availability for controlled experiments. Examples of such animals are rats [5]- [13], mice [14], [15], golden hamsters [16], and rabbits [9], [17]- [24].…”

Section: Animal Species In Radar Measurementmentioning

confidence: 99%

“…Churkin and Anishchenko [9] measured both the heartbeats and respiration of a sleeping rat and rabbit using a 100-GHz radar system. Juan et al [13] used a self-injection-locked (SIL) radar system to measure the respiration and heartbeat of a mouse. Wang et al [26] measured both the heartbeats and respiration of a sleeping dog and cat using a UWB radar with a frequency band between 6.0 and 8.5 GHz.…”

Section: Radar Measurement Of the Heartbeatmentioning

confidence: 99%

“…In addition, the low-frequency microwave band at 2.4 GHz is often used as it corresponds to the industrial, scientific, and medical band that can be used without a government license. Hafner et al [53], [54], Juan et al [13], and Gordon et al [14] all used the 2.4-GHz band. Among studies that used microwave radar systems in the C band (4-8 GHz), Zeng et al [5] used 5.8-GHz microwaves and Ma et al [20], [27] and Wang et al [21], [28] used 7.3-GHz microwaves.…”

Section: Radar Frequency In Animal Measurementsmentioning

confidence: 99%

“…For small animals such as rats, radar antennas are placed close to the target animal in general. Hafner et al [53], [54], for example, installed a radar antenna directly on a target fish (i.e., 𝑟 = 0); Lai et al [33] set 𝑟 = 0 and 𝑟 = 0.1 m for a cat; Hossain et al [36] set 𝑟 = 0.2 m for a broiler chicken; Huan et al [10], [12] and Anishchenko et al [6] both set 𝑟 = 0.3 m for a rat; Lin [17] and Yu et al [24] both set 𝑟 = 0.3 m for a rabbit; Tazen et al [32] set 𝑟 = 0.3 m for a dog; Matsui et al [18], [19] set 𝑟 = 0.4 m for a rabbit; Wang et al [55] set 𝑟 = 0.4 m for a fish; and Juan et al [13] set 𝑟 = 0.5 m for a rat in a box.…”

Section: Distance Between Animals and Radar Antennasmentioning

confidence: 99%

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Review: Noncontact Sensing of Animals Using Radar

SAKAMOTO,

IWATA,

MINAMI

et al. 2024

IEICE Trans. Electron.

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There has been a growing interest in the application of radar technology to the monitoring of humans and animals and their positions, motions, activities, and vital signs. Radar can be used, for example, to remotely measure vital signs such as respiration and heartbeat without contact. Radar-based human sensing is expected to be adopted in a variety of fields, such as medicine, healthcare, and entertainment, but what can be realized by radar-based animal sensing? This paper reviews the latest research trends in the noncontact sensing of animals using radar systems. We also present examples of our past radar experiments for the respiratory measurement of monkeys and the heartbeat measurement of chimpanzees. The trends in this field are reviewed in terms of the target animal species, type of vital sign, and radar type and selection of frequencies.

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Section: Animal Species In Radar Measurementmentioning

confidence: 99%

Section: Radar Measurement Of the Heartbeatmentioning

confidence: 99%

Section: Radar Frequency In Animal Measurementsmentioning

confidence: 99%

Section: Distance Between Animals and Radar Antennasmentioning

confidence: 99%

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Review: Noncontact Sensing of Animals Using Radar

SAKAMOTO,

IWATA,

MINAMI

et al. 2024

IEICE Trans. Electron.

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“…These minute vibrations can be detected using a Doppler radar and monitored by estimating respiration and heartbeat rates [1]. Juan et al attempted to measure the respiration rate of a rat using a Doppler radar [2].…”

Section: Introductionmentioning

confidence: 99%

Non-Contact Heart Rate Measurement Based on Adaptive Notch Filter and Elimination of Respiration Harmonics

Tazen

Sasaoka

Okamoto³

2023

IEEE Access

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Continuous-wave Doppler radar is an established method for non-contact heart rate estimation. The output signal of the Doppler radar includes the fundamental wave of a heartbeat, heartbeat harmonics, the fundamental wave of respiration, respiration harmonics, and artifacts due to body movement. The respiration harmonics and artifacts degrade the accuracy of heart rate estimation. To this end, a novel heart rate estimation method is proposed that uses adaptive notch filters (ANFs). First, the proposed system estimates respiration frequency. Next, cascaded notch filters, the notch frequencies of which are controlled by the estimated respiration frequency, eliminate respiration harmonics; thus, the accuracy of heart rate estimation improves. In addition, the proposed method uses an ANF based on all-pass filter and an adaptive algorithm to estimate heart rate. The ANF is robust against disturbances, allowing the proposed method to improve the estimation accuracy in the presence of moving artifacts. The simulation results for human subjects show that MAPE, MAE, MSE, and RMSE of the proposed method are 5.24%, 4.00, 28.38, and 5.26, respectively; thus, they can be reduced up to fourth-order respiration harmonics. In an experiment on a dog not restrained in a cage, the proposed method, handling up to the fifth-order respiration harmonic, yields MAPE of 7.89%, MAE of 5.34, MSE of 96.11, and RMSE of 9.80. Thus, the proposed method shows better estimation accuracy than any other conventional method.INDEX TERMS 24-GHz continuous-wave Doppler radar, non-contact vital monitoring, adaptive digital filter.

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Review of Self-Injection-Locked Radar Systems for Noncontact Detection of Vital Signs

Wang

Horng

et al. 2020

IEEE J. Electromagn. RF Microw. Med. Biol.

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SIL-Radar-based Rat Detector for Warehouse Management System

Cited by 5 publications

References 6 publications

Review: Noncontact Sensing of Animals Using Radar

Review: Noncontact Sensing of Animals Using Radar

Non-Contact Heart Rate Measurement Based on Adaptive Notch Filter and Elimination of Respiration Harmonics

Review of Self-Injection-Locked Radar Systems for Noncontact Detection of Vital Signs

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