"Rehabilitation exoskeleton control PCBA" is the rehabilitation exoskeleton control printed circuit board assembly. The following is a detailed introduction to it:

　　Overview

　　The rehabilitation exoskeleton control PCBA is the core component of the rehabilitation exoskeleton device. It integrates a variety of electronic components and circuits to realize the functions of motion control, data acquisition and processing, human-computer interaction, etc. of the rehabilitation exoskeleton, helping patients to carry out rehabilitation training, restore limb movement function, and improve their ability to take care of themselves.

　　Components

　　Microcontroller (MCU): As the core brain of the PCBA, the microcontroller is responsible for executing control algorithms and processing various input and output signals. It receives data from sensors, calculates and outputs control signals according to the preset rehabilitation training program or the patient's instructions to drive the movement of each joint of the exoskeleton. Common high-performance microcontrollers such as ARM series chips can meet the needs of real-time processing and complex algorithm operations.

　　Sensor interface circuit: Connects a variety of sensors, such as angle sensors, force sensors, acceleration sensors, etc. Angle sensors are used to detect the angle changes of exoskeleton joints, force sensors can sense the interaction force between patients and exoskeletons, and acceleration sensors can monitor the movement acceleration of exoskeletons. These sensor interface circuits convert the analog signals collected by the sensors into digital signals and preprocess them so that the microcontroller can accurately read and analyze the data.

　　Drive circuit: According to the instructions of the microcontroller, it provides drive signals to the actuators of the exoskeleton (such as motors, hydraulic or pneumatic drives). For example, for electric rehabilitation exoskeletons, the drive circuit controls the speed and direction of the motor to drive the joint movement; for hydraulic or pneumatic exoskeletons, the drive circuit controls the corresponding valves and pumps, adjusts the hydraulic or air pressure, and realizes the flexion and extension of the joints.

　　Communication module circuit: realizes the communication between the rehabilitation exoskeleton and external devices (such as computers, smartphones, and doctor workstations). Common communication methods include Bluetooth, Wi-Fi, USB, etc. Through the communication module, doctors can remotely monitor the patient's training data and adjust the training plan; patients can also set training parameters and view training progress through mobile devices.

　　Power management circuit: converts the input power (such as battery power) into a stable voltage suitable for the operation of each chip and circuit on the PCBA, such as 5V, 3.3V, etc. At the same time, it has functions such as overvoltage protection, overcurrent protection, undervoltage protection and battery charging management to ensure that the PCBA can operate safely and stably under different power conditions, and effectively manage the use and life of the battery.

　　Human-computer interaction interface circuit: connects human-computer interaction devices such as buttons, touch screens, voice input and output devices, etc. Patients can input instructions through these devices, such as selecting training modes, adjusting training intensity, etc.; at the same time, PCBA can also feedback information to patients through the human-computer interaction interface, such as training status prompts, voice guidance, etc., to improve patients' training experience and participation.

　　Working principle

　　Data acquisition: The sensor monitors the motion state of the exoskeleton and the interaction information between the patient and the exoskeleton in real time. For example, the angle sensor continuously detects the angle change of the joint, and the force sensor senses the size and direction of the force applied by the patient to the joint. These sensors convert the collected physical signals into electrical signals and transmit them to the microcontroller through the sensor interface circuit.

　　Data analysis and decision-making: The microcontroller analyzes and processes the received sensor data, and judges whether the current motion state meets the training requirements according to the preset rehabilitation training algorithm and the individual situation of the patient (such as rehabilitation stage, physical condition, etc.). If adjustment is required, the microcontroller will calculate the corresponding control strategy, such as adjusting the movement angle, speed or strength of the joint.

　　Instruction output and execution: The microcontroller sends control instructions to the drive circuit based on the analysis and decision results. The drive circuit provides appropriate drive signals to the actuator according to the instructions, so that the joints of the exoskeleton move in a predetermined manner. For example, when the patient is doing walking training, the microcontroller controls the coordinated movement of the hip and knee joints of the exoskeleton to simulate a normal walking gait.

　　Communication and feedback: The communication module sends the operation data of the rehabilitation exoskeleton (such as movement trajectory, joint angle, patient force, etc.) to external devices, and doctors or patients can understand the progress and effect of training through these data. At the same time, the human-computer interaction interface circuit provides feedback information to the patient according to the instructions of the microcontroller, such as informing the patient of the current training status through voice prompts or encouraging the patient to continue working hard, so as to enhance the patient's training confidence and enthusiasm.

　　Application scenario

　　Hospital rehabilitation department: In the rehabilitation treatment of the hospital, rehabilitation exoskeleton control PCBA-supported rehabilitation exoskeleton devices can be used to help patients with limb dysfunction caused by stroke, spinal cord injury, brain trauma, etc. to conduct rehabilitation training. Doctors can develop personalized training plans based on the patient's specific condition and rehabilitation goals, and monitor the training process in real time through PCBA, adjust training parameters, and improve the effect of rehabilitation treatment.

　　Rehabilitation center: The rehabilitation exoskeleton equipment equipped in the rehabilitation center uses the intelligent control function of PCBA to provide patients with a variety of rehabilitation training services. Under the guidance of professional rehabilitation therapists, patients can use exoskeletons to perform training such as standing, walking, and going up and down stairs to promote the recovery of limb function and improve their ability to take care of themselves.

　　Home rehabilitation: With the development of rehabilitation exoskeleton technology, some portable and easy-to-operate rehabilitation exoskeleton devices have gradually entered the home. Patients can use these devices for daily rehabilitation training at home, communicate and guide remotely with doctors or rehabilitation therapists through PCBA, achieve continuous rehabilitation treatment, and reduce the inconvenience and cost of going to and from the hospital.