Modular multifunctional rehabilitation medical equipment based on CAN communication
A CAN communication and medical equipment technology, applied in the field of modular multifunctional rehabilitation medical equipment, can solve the problems of small correlation, waste of manpower, and single function, and achieve the effect of simple protocol, easy expansion, and simple structure
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Embodiment 2
[0028] like image 3 As shown, the ultrasonic module generates a 1.2M high-frequency signal from the internal PWM module of the STM32 series microcontroller, and outputs it to the ultrasonic transducer drive circuit. Since different frequency transducers have different therapeutic effects, the device may be equipped with a variety of different frequencies. Transducer, and this design uses software to modify the frequency, which simplifies the hardware design, and the frequency switching is very convenient, just use the program to modify the control parameters. The ultrasonic module is also designed with a red light drive circuit to cooperate with photon treatment, the recovery effect is more significant;
Embodiment 3
[0030] like Figure 5 As shown, the DA module inside the STM32 outputs a sinusoidal signal with a fundamental wave of 1-10K through DMA through the DA module of the intermediate frequency electrical stimulation module. After low-frequency modulation, the power is amplified by the audio power amplifier. The specific model of the audio power amplifier is TPA3118, and then through the output transformer for step-up isolation, then contact the patient for treatment. The circuit is characterized by the use of digital power amplifier with high efficiency and simple structure. The whole circuit does not need special heat dissipation treatment, simple and reliable. Perform real-time calculations for the AD module inside the single-chip microcomputer to ensure energy control and safety protection during the treatment process, and another PWM signal controls the air pump through the power switch to perform negative pressure adsorption control.
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