The Design of Wearable Wireless Inertial Measurement Unit for Body motion Capture System

Liu, Rongkai; Liang, Peng; Tong, Lina; Yang, Kaizhi; Liu, Bingyang

doi:10.1109/iisr.2018.8535742

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…The knee joint angle information was obtained using two JY901 sensors, and the data transmitted to the stimulator via a serial port. The JY901 sensor, integrated with high-precision gyroscope, derives the motion posture in real time [17]. In a dynamic environment, the measurement angle error is only 0.1°, which meets the requirements of knee joint angle measurement.…”

Section: System Designmentioning

confidence: 82%

Regulation and Rehabilitation of Hindlimb Gait Based on CPG in Rats with Spinal Cord Injury

Shao

Shen

et al. 2021

Preprint

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Background: To reconstruct hindlimb gait movement in patients with spinal cord injury(SCI), a spinal stimulator using a one-port electrode is proposed to regulate bilateral hindlimb movements in rats. Functional electrical stimulation(FES) of rats with spinal cord injury(SCI) was performed, considering the central pattern generator(CPG) in the spinal cord as the target.Methods: Left hindlimb flexion and right hindlimb extension were achieved by stimulating the CPG site with a positive pulse, while negative pulse stimulation induced the opposite motions. Angle sensors were used to track and capture knee joint angle data, and the mapping relationship model between voltage amplitude and gait parameters was established. The hindlimbs were controlled using the reference angle. SCI rats were subjected to stimulation trained for 30 min each day for 28 days with a reference angle range of 96°-128°. Results: Based on CPG site stimulation, the hindlimbs of rats were regulated between 96° and 128° with this system. On the 28th day, a BBB score indicating. A 76% health level was achieved, while the SEP measurement results were close to the normal value.Conclusion: Compared with traditional spinal stimulators, the proposed spinal stimulator has fewer electrodes and a simplified time sequence. The system realizes an improved gait feedback and decreased muscle fatigue. The results of rehabilitation training proved the recovery effect of the system on the hindlimb gait of SCI rats.

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Section: System Designmentioning

confidence: 82%

Regulation and Rehabilitation of Hindlimb Gait Based on CPG in Rats with Spinal Cord Injury

Shao

Shen

et al. 2021

Preprint

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“…The builtin Kalman fusion filter algorithm can obtain accurate information such as three-axis angular velocity, three-axis geomagnetic field, and three-axis Angle through accurate adjustment of the algorithm. This paper chooses to use the IMU as the leg motion data acquisition sensor [10][11] .…”

Section: Design Of Inertial Measurement Unitmentioning

confidence: 99%

Design of human lower limb motion data acquisition system based on multi-sensor

Pang,

Shi,

Liu

et al. 2024

J. Phys.: Conf. Ser.

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In order to protect the health of older people, a wearable lower extremity motion data acquisition system was designed. With STM32F103C8T6 as the core, the system uses an inertial attitude sensor to collect lower limb motion attitude information. In view of the large difference in plantar pressure data of different fall types, the distributed flexible film plantar pressure sensor is used to collect plantar pressure information as an auxiliary discrimination means, which can accurately distinguish the fall behavior from other behaviors, and carry out data transmission through the wireless module. The device is small in size, light in weight, low in power consumption, and wearable, which is easy to apply in the field of health monitoring, and can also be used as a reference for the implementation of corresponding protection strategies for active lower limb prosthetics.

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