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Flexible microstrip line, backscattering tactile sensing system and measuring method of backscattering tactile sensing system

A backscattering and tactile perception technology, applied in the field of tactile perception, can solve the problems of inability to take into account the number of sensors, continuous perception of surface wiring, positioning accuracy, environmental adaptability, power supply, wireless backhaul, etc., to achieve the effect of increasing depth

Active Publication Date: 2022-05-13
CHINA ELECTRONICS TECH GRP NO 7 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a flexible microstrip line, backscattering tactile sensing system and Its measurement method, which has the ability to continuously and accurately sense the magnitude and position of the contact force

Method used

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  • Flexible microstrip line, backscattering tactile sensing system and measuring method of backscattering tactile sensing system
  • Flexible microstrip line, backscattering tactile sensing system and measuring method of backscattering tactile sensing system
  • Flexible microstrip line, backscattering tactile sensing system and measuring method of backscattering tactile sensing system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0050] Such as figure 1 As shown, a flexible microstrip line, a flexible polymer is added between the signal trace and the ground trace, and the signal trace and the flexible polymer deform together to form a flexible microstrip line;

[0051] When pressure is applied, the signal trace and the flexible polymer are deformed, and the upper signal trace contacts the lower ground trace to form a short circuit point. As the magnitude of the applied force increases , the short-circuit point will gradually move to both ends.

Embodiment 2

[0053] Based on a flexible microstrip line described in Embodiment 1, such as figure 1As shown, a backscattering tactile perception system includes 2 first antennas, a transceiver radio frequency switch with the same number as the first antenna, a sensor, and a transceiver terminal with a second antenna;

[0054] The sensor includes a signal trace, a ground trace, and a flexible polymer added between the signal trace and the ground trace, and the signal trace and the flexible polymer deform together to form a flexible microstrip line;

[0055] At least one end of the sensor is sequentially connected to a transceiver radio frequency switch and a first antenna;

[0056] The first antenna is used to transmit the backscatter signal and receive the backscatter signal emitted by the other end of the sensor;

[0057] The transceiver end is used for receiving and transmitting the backscatter signal emitted by the first antenna of the sensor.

[0058] In a specific embodiment, the nu...

Embodiment 3

[0074] In order to reduce the occupation of air interface resources, a single antenna can be used to transmit wireless signals instead of one antenna at each end of the sensor (a total of two antennas). Therefore, in this embodiment, a backscattering tactile sensing system includes a first antenna, a quantity The same transceiver radio frequency switch and sensor as the first antenna;

[0075] The sensor includes a signal trace, a ground trace, and a flexible polymer added between the signal trace and the ground trace, and the signal trace and the flexible polymer deform together to form a flexible microstrip line;

[0076] One end of the sensor is sequentially connected to a transceiver radio frequency switch and a first antenna;

[0077] Since the transceiver RF switch signal is separated in the frequency domain by the design strategy, the backscattered signal is loaded to both ends of the sensor by a 1-2 antenna splitter; the f of the transceiver RF switch signal s , 4f s...

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Abstract

The invention discloses a flexible microstrip line, a backscattering touch sensing system and a measuring method thereof, the flexible microstrip line, a flexible polymer added between a signal trace and a grounding trace, the signal trace and the flexible polymer jointly deform to form the flexible microstrip line; when pressure acts, the signal traces and the flexible polymer deform, the signal traces located on the upper portion make contact with the grounding traces located on the lower portion to form short circuit points, and the short circuit points gradually move towards the two ends along with increase of the amplitude of acting force. According to the invention, the magnitude and position of the tactile pressure are converted into the backscattered signal phase change, the absolute phase change is obtained through signal processing after the phase change is received, and then the magnitude and contact position of the tactile pressure can be measured by deducing the phase of the reflected radio frequency signal.

Description

technical field [0001] The invention relates to the technical field of tactile perception, and more specifically, to a flexible microstrip line, a backscattering tactile perception system and a measurement method thereof. Background technique [0002] As another dimensional sensory signal besides vision and hearing, touch is crucial for human beings to understand and interact with the surrounding world. Tactile perception not only needs to obtain the magnitude of the contact force, but also completes the continuous and accurate positioning of the force, and then can provide key information such as the position and size of the external stimulus. [0003] Skin-like continuous tactile sensors could enable many dexterous tasks involving the performance of mechanical tools. In addition, tactile sensing can expand the dimension of human interaction with the digital world. At present, most of the tactile interaction applications between humans and the digital world are carried ou...

Claims

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Application Information

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IPC IPC(8): G01L1/16G01B7/00
CPCG01L1/16G01B7/003Y02D30/70
Inventor 刘铭桂振文谢伟坤
Owner CHINA ELECTRONICS TECH GRP NO 7 RES INST
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