A fabric-based flexible control system and method

Abstract

The invention particularly relates to a fabric-based flexible control system. It includes a flexible sensor, and a controller. The controller is connected to a display device with a display. The fabric includes a flexible substrate, a graphene film layer, and the graphene conductive paste is composed of a graphene solution and a water-soluble polyurethane solution in a certain proportion. Prepared after mixing, the graphene conductive paste is a solution with a graphene / polyurethane effective content ratio of 1%-6%; after the flexible sensor detects the detection signal of the pressure or tensile force acting on the fabric, the detection signal is sent to the controller, the controller performs calculation after receiving the detection signal, and sends the calculated required data to the display device. A fabric-based flexible control method is also included. The control system of the present invention can be applied to the field of monitoring human physiological activities, especially to monitor the daily physiological activities of patients, children and the elderly; and has high reliability, good real-time responsiveness, and high monitoring accuracy.

Description

technical field [0001] The invention relates to the technical field of flexible human physiological activity monitoring, in particular to a fabric-based flexible control system and method. Background technique [0002] In recent years, with the rapid development of mobile Internet and smart terminals, wearable electronic devices have shown a huge market prospect. As one of the core components of wearable electronic devices, flexible wearable electronic sensors have become the focus of attention due to their wide range of sensitivity, response time, portability, ease of use, and multi-functional integration. Research and development of flexible wearable electronic sensors by researchers. [0003] Flexible wearable sensors are a general term for a class of sensors that can be directly worn or integrated into clothing to sense and detect various human physiological activities. Wide range of applications. Traditional strain sensors, mainly based on some rigid materials, such ...

AI Technical Summary

Problems solved by technology

Although these studies have preliminarily realized the flexibility and wearability of sensors, there are still two unresolved basic problems: First, the existing wearable sensors have relatively low strain sensitivity and a small strain sensing range, so they are not suitable for monitoring Monitoring of human activities that require high sensor sensitivity and a large strain sensing range, such as the slight pulse of the human body

However, first of all, because it uses graphene powder, the graphene powder needs to be wetted first and then dispersed, so when the powder is added to the solution, the dispersion is slow, and some parts may appear during the wetting process. The phenomenon of powder stacking and agglomeration

Secondly, although the patent also added a dispersant to assist in the dispersion, it only added the dispersant when adding the powder, and at this time the stacking and agglomeration of graphene particles may have occurred

When agglomeration occurs and then dispersed, the dispersion effect is greatly reduced. Therefore, relatively speaking, the dispersion of graphene powder in the slurry is poor, resulting in a decrease in electrical conductivity and thermal response performance.

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