Portable ultrasonic physiotherapy instrument based on fuzzy control algorithm

Abstract

The invention relates to a portable ultrasonic physiotherapy instrument based on a fuzzy control algorithm. The portable ultrasonic physiotherapy instrument mainly comprises a drive module, a system control module, a circuit protecting module, a wireless transmission module, an ultrasonic transducer, an oscillator and a frequency tracking circuit and is characterized in that the fuzzy control algorithm is mainly used to control the functional modules of the physiotherapy instrument, and the ultrasonic transducer adopting a impedance matching design allows acoustical power to be stably output to achieve feedback type treatment; the physiotherapy instrument can efficiently and stably output ultrasonic waves to effective treat human body lesions, and an ultrasonic effect can be shown favorably; the phase difference signal of voltage and currents at two ends of the transducer is obtained and input into a fuzzy controller to regulate PWM waveform frequency in real time, and accordingly theultrasonic transducer constantly work at resonant frequency to achieve frequency tracking; the wireless transmission module transmits related data to a mobile phone terminal to perform corresponding control.

Description

technical field [0001] The invention belongs to a device capable of treating and alleviating human chronic diseases, and in particular relates to a device function controlled by fuzzy control algorithm and matching impedance design. Background technique [0002] Chronic soft tissue injury refers to the long-term existence or long-term damage of skin, subcutaneous superficial and deep fascia, muscle, tendon, tendon sheath, ligament, intervertebral disc, peripheral neurovascular and other tissues caused by various acute trauma or chronic strain and invasion of wind, cold and damp pathogens. Pathological damage over time is called chronic soft tissue damage. Clinical manifestations: pain, swelling, deformity, dysfunction. Chronic soft tissue injury is a common disease that people often encounter. With the increasing refinement of social division of labor, chronic soft tissue injury diseases caused by incorrect posture have more and more obvious impact on human beings. , its i...

AI Technical Summary

Problems solved by technology

At present, there are some ultrasonic therapy equipment on the market, but there are few portable intelligent ultrasonic products that can be automatically controlled. Through the analysis of some ultrasonic physiotherapy instruments that appear at present, there are (1) the ultrasonic output does not add any algorithm control, resulting in The output sound intensity is not stable

(2) Due to factors such as ambient temperature and load, the resonant frequency will drift, and it cannot work at the resonant frequency, resulting in poor results

(3) Ultrasonic gear adjustment is single, only waveform frequency, duty cycle or sound intensity can be adjusted

(4) The matching impedance of the ultrasonic transducer is not designed, and the influence of the static capacitance of the transducer is not eliminated, so that the electroacoustic conversion efficiency is not high

(5) Inconvenient to carry, most ultrasonic physiotherapy products are bulky and cannot meet the requirements of portability

(6) Most of the products are not equipped with circuit protection circuit, which brings safety hazards to users

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