Muscle-bone rehabilitation instrument circuit

Abstract

The utility model discloses a muscle-bone rehabilitation instrument circuit, which comprises a curvature sensor, a main processor and a Bluetooth transceiver circuit, and adopts a power supply mode to control a switch to switch two paths of power supply: an internal lithium battery or a USB interface to supply power. A Hall switch circuit is arranged at the fixed end of the curvature sensor, and a magnet at the fixed end triggers the Hall switch circuit to realize on-off of power supply. According to the utility model, automatic power-on can be realized when the muscle-bone rehabilitation instrument is placed in place, and automatic power-off can be realized when the muscle-bone rehabilitation instrument is separated, thereby preventing mistaken sampling of data of the curvature sensor.

Description

TECHNICAL FIELD

[0001] The utility model relates to a muscle bone rehabilitation appearance, especially a muscle bone rehabilitation appearance circuit. BACKGROUND

[0002] Patent document CN118716719A, an intelligent motion capture glove, discloses that a light and thin flexible bending sensor is arranged on the back of each finger, which can obtain bending amplitude data of the fingers, and the data is transmitted to a computer or other equipment through a Bluetooth transmission by a main board and a processor. The flexible bending sensor provides accurate finger bending data, accurately simulates finger bending shapes, provides responsive curve coherent virtual coordinate output, and dynamically outputs accurate data and calculates optimized coordinate error values. The document does not provide a specific power supply circuit and a specific power supply mode.

[0003] There are several ways to wake up the existing low-power circuit, 1, entity button trigger wake up, this kind of circuit often needs manual operation to turn on and off, and there is an additional entity button. 2, wake up through the gyroscope sensor, this kind of circuit has the risk of false triggering. 3, through the structure to control two metal springs to contact, this kind of circuit often has the risk of disconnection and power failure during movement. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a muscle bone rehabilitation appearance circuit. The technical scheme of the utility model is:

[0005] A muscle bone rehabilitation appearance circuit, comprising: a curvature sensor, a main processor, and a Bluetooth transceiver circuit.

[0006] The curvature sensor is connected to the main processor, and the Bluetooth transceiver circuit is connected to the main processor.

[0007] Two power supplies are adopted: internal lithium battery or USB interface power supply.

[0008] The curvature sensor detects the bending angle, the sensor data is transmitted through I2C wire, and the main processor completes data processing and Bluetooth transceiver.

[0009] The USB interface is connected to the lithium battery through the battery charge and discharge management module, the output end of the lithium battery and the USB interface are the input ends of the power supply mode control switch, the power supply mode control switch outputs power supply for the entire circuit, and the working state is indicated by the LED indicator.

[0010] The USB interface is connected to the control end of the power supply mode control switch through the USB level detection circuit, and when the USB interface is externally connected to the power supply, the power supply mode control switch is switched, and the USB interface externally connected to the power supply is output from the power supply end to supply power for the entire circuit.

[0011] The Hall switch circuit is arranged in the fixed end of the curvature sensor, and the magnet is arranged at the non-woven cloth replacement sticker, when the curvature sensor is fixed on the two sides of the movable joint, the non-woven cloth replacement stickers are pasted on the two fixed ends of the curvature sensor and are pasted and fixed with the skin on the two sides of the movable joint, the magnet acts on the Hall switch circuit, when there is no external power supply at the USB interface, the power supply mode control switch triggers the lithium battery power supply; when there is external power supply at the USB interface, the power supply mode control switch triggers the external power supply of the USB interface.

[0012] The power supply mode control switch comprises a power input MOS tube, a lithium battery output switch and a Hall switch circuit.

[0013] The input of the power input MOS tube is connected with the USB interface, and the output is connected with the power output end; the USB level detection circuit controls the on-off of the power input MOS tube, when the USB interface power is inserted, the USB level detection circuit controls the power input MOS tube to be turned on, the USB interface power is connected to the power output end, at the same time, the USB level detection circuit controls the lithium battery output switch to be cut off, and the lithium battery output power is prohibited;

[0014] The input of the lithium battery output switch is connected with the lithium battery, and the output is connected with the power output end; the lithium battery output switch is controlled by the outputs of the USB level detection circuit and the Hall switch circuit, when the USB interface is not connected with the power, the USB level detection circuit controls the power input MOS tube to be cut off, the USB interface power is prohibited to be connected to the power output end, at the same time, the USB level detection circuit controls the lithium battery output switch to be turned on, at this time, if the magnet acts on the Hall switch circuit, the lithium battery output power is allowed, if the magnet does not trigger the Hall switch circuit, the lithium battery output is prohibited.

[0015] The Hall switch circuit is arranged in the fixed end of the curvature sensor, and the magnet is arranged at the non-woven cloth replacement sticker, when the curvature sensor is fixed on the two sides of the movable joint, the non-woven cloth replacement stickers are pasted on the two fixed ends of the curvature sensor and are pasted and fixed with the skin on the two sides of the movable joint, the magnet acts on the Hall switch circuit. Two Hall switch circuits are connected in series, and the magnet is arranged at the non-woven cloth replacement sticker, when the curvature sensor is fixed on the two sides of the movable joint, the non-woven cloth replacement stickers are pasted on the two fixed ends of the curvature sensor and are pasted and fixed with the skin on the two sides of the movable joint, the magnet acts on the Hall switch circuit. Only when both the Hall switch circuits are triggered by the magnet, the lithium battery output power is allowed.

[0016] The battery charging and discharging management module is connected with the lithium battery. Advantages

[0017] 1. The device adopts a low-power circuit design, has the advantages of low power consumption, long standby and fast charging. The device is portable and light, and has flexible use scenarios. The curvature sensor measures the angular displacement by differential capacitance measurement, and a temperature sensor is used, so that the device has extremely low temperature fluctuation and strain and noise interference.

[0018] 2. Automatically switch external power supply, when the USB interface has external power supply, the USB level detection circuit controls the power input MOS tube to be turned on, the external power supply of the USB interface is connected to the power output end, the device is powered, and the lithium battery is supplemented with electric energy.

[0019] 3. The device is automatically powered after installation, when the muscle bone rehabilitation instrument is fixed on both sides of the movable joint, the magnet triggers the Hall switch circuit, so that the lithium battery supplies power to the device, without manual operation of other control power supply, which is convenient and fast.

[0020] 4. The device is automatically powered off after falling off, when the bone rehabilitation instrument fixed end falls off the skin surface, the curvature sensor will no longer generate effective joint activity data, the Hall switch circuit triggers the lithium battery output switch, so as to prohibit the lithium battery output, and power off in time to ensure that the device will not generate false data uploaded to the network. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an external structure schematic view of the utility model;

[0022] Figure 2 It is a circuit principle view of the utility model;

[0023] Figure 3 It is a schematic view for arm training of the utility model;

[0024] Figure 4 It is a logic diagram of two-way power supply switching of the utility model.

[0025] 1 fixed end A; 2 fixed end B; 3 charging port; 4 indicator light; 5 curvature sensor. DETAILED DESCRIPTION

[0026] The utility model is further described below in combination with the drawings:

[0027] As Figure 1 As shown in the external structure schematic view of the utility model, the two ends of the curvature sensor 5 are fixed end A and B respectively, the circuit is arranged inside fixed end A, and the USB interface and working state indicator light are arranged. Fixed end A and B are used to fix the curvature sensor 5 on the skin on both sides of the joint, so that the curvature sensor 5 bends with the joint activity, thereby generating corresponding signals for the main processor circuit sampling.

[0028] As Figure 2 As shown in the circuit principle view of the utility model, the main processor is connected with the curvature sensor 5 and the Bluetooth transceiver circuit, the curvature sensor 5 sends the data such as movable joint bending to the main processor, and the Bluetooth transceiver circuit is connected with the network. The LED working state indicator light displays the power supply mode and the connection state of the Bluetooth transceiver circuit.

[0029] The power supply mode control switch realizes two-way switching of lithium battery and USB interface power supply, and the power supply output end supplies power to the whole circuit.

[0030] The main processor can select the Qiheng CH582 low-power Bluetooth chip, which is integrated with 2Mbps low-power Bluetooth BLE communication module, 2 full-speed USB host and device controllers and transceivers, 2 SPIs, 4 serial ports, 14 ADCs, touch key detection modules, RTC and other peripheral resources.

[0031] The curvature sensor is collected through a common-mode differential circuit, is made of a medical-grade silicon elastomer, and has similar mechanical properties and working temperature to other silicon elastomer products. The angle displacement is measured through differential capacitance measurement, and temperature fluctuation, strain and noise interference are greatly reduced.

[0032] The lithium battery charging and discharging management circuit selects the TP4056 chip, has a 500mA / H charging speed, and can be fully charged within 1 hour. The power supply module is subjected to low-power processing.

[0033] The main processor sends the signals of temperature, angle, time, speed and mutation collected by the sensor in real time to the orthopedic monitoring Internet terminal through the integrated Bluetooth module, and uses the temperature sensor DS18B20Z as temperature compensation.

[0034] The utility model discloses an offline terminal equipment, and the equipment power consumption is 10mA when working, and the standby power consumption control is within 0.5mA. The lithium battery of polymer 350mA is selected, and the continuous work of 30 hours is satisfied, and the use of half month of patient is satisfied.

[0035] As Figure 3 As shown in the arm training schematic diagram of the utility model, the elbow joint two sides replace the fixed curvature sensor 5 A, B two fixed ends with non-woven fabric, the fixed end inlay magnet, and the magnet acts on the internal Hall switch circuit, if there is no external charging port (USB) power supply at this time, the internal lithium battery supplies power. If the fixed end falls off the skin surface, the magnet is separated from the Hall switch circuit, and the main processor is not powered, so that the lithium battery can be saved for long standby work without increasing power consumption.

[0036] The utility model can also be used for joint training of legs and other parts needing movement and bending.

[0037] AsFigure 4 As shown in the logic diagram of the two-way power supply switching of the utility model, when the USB interface power is inserted, the USB level detection circuit controls the power input MOS tube to be turned on, the USB interface power is connected to the power output end, at the same time, the USB level detection circuit controls the lithium battery output switch to be cut off, and the lithium battery output is prohibited.

[0038] When the USB interface is not connected to the power, the USB level detection circuit controls the power input MOS tube to be cut off, the USB interface power is prohibited to be connected to the power output end, at the same time, the USB level detection circuit controls the lithium battery output switch to be turned on, at this time, if the magnet acts on the Hall switch circuit, the lithium battery output is allowed to supply power, if there is no magnet to trigger the Hall switch circuit, the lithium battery output is prohibited. The action of the lithium battery output switch is controlled by the output of the Hall switch circuit and the USB level detection circuit.

[0039] The magnet is arranged at the fixed end of the curvature sensor 5, when the sensor 5 is fixed on both sides of the movable joint, the fixed end is pasted on the skin surface through the non-woven fabric, and the magnet is arranged at the pasting position, at this time, the magnet triggers the Hall switch circuit in the fixed end. If the Hall switch circuit is arranged in both fixed ends of the curvature sensor 5, the series connection mode can be adopted, that is, as long as one fixed end is separated from the skin surface and the magnet falls off, the lithium battery output switch will not be turned on, so that the lithium battery output voltage is not generated.

Claims

1. A muscle and bone rehabilitation instrument circuit, comprising: a curvature sensor, a main processor, and a Bluetooth transceiver circuit; the curvature sensor is connected to the main processor, and the Bluetooth transceiver circuit is connected to the main processor; characterized in that two power supply modes: internal lithium battery or USB interface power supply; the USB interface is connected to the lithium battery through a battery charging and discharging management module, the output end of the lithium battery and the USB interface are connected to the input end of a power supply mode control switch, and the output of the power supply mode control switch is used for supplying power to the entire circuit.

2. The muscle and bone rehabilitation instrument circuit according to claim 1, characterized in that: the USB interface is connected to the control end of the power supply mode control switch through a USB level detection circuit, the power supply mode control switch is switched when the USB interface is externally connected to a power supply, and the power supply externally connected to the USB interface is output from a power supply output end to supply power to the entire circuit.

3. A myofunctional rehabilitation apparatus circuit according to claim 2, characterized in that: a Hall switch circuit is arranged in the fixed end of the curvature sensor, a magnet is arranged at a non-woven cloth replacement patch, the non-woven cloth replacement patch is adhered to the fixed end of the curvature sensor and is adhered to the skin on both sides of the movable joint when the curvature sensor is fixed on both sides of the movable joint, the magnet acts on the Hall switch circuit, the power supply mode control switch triggers the lithium battery power supply when there is no external power supply for the USB interface, and the power supply mode control switch triggers the external power supply for the USB interface when there is an external power supply for the USB interface.

4. A myofunctional electrical stimulation circuit according to claim 3, wherein The power supply mode control switch comprises a power input MOS tube, a lithium battery output switch, and a Hall switch circuit. The input of the power input MOS tube is connected to the USB interface, and the output thereof is connected to the power supply output end; the USB level detection circuit controls the on-off of the power input MOS tube, the USB interface power supply is connected to the power supply output end when the USB interface power supply is inserted, and the lithium battery output switch is controlled by the USB level detection circuit and the output of the Hall switch circuit, the USB interface power supply is prohibited from being connected to the power supply output end when the USB interface is not connected to the power supply, and the lithium battery output switch is allowed to be turned on at the same time; if the magnet acts on the Hall switch circuit, the lithium battery output is allowed; if the magnet does not trigger the Hall switch circuit, the lithium battery output is prohibited. Both ends of the curvature sensor are provided with Hall switch circuits, and the two Hall switch circuits are connected in series, and magnets are arranged at non-woven cloth replacement patches, the non-woven cloth replacement patches are adhered to the two fixed ends of the curvature sensor and are adhered to the skin on both sides of the movable joint when the curvature sensor is fixed on both sides of the movable joint, and the magnets act on the Hall switch circuits.

5. A myofunctional rehabilitation apparatus circuit according to claim 4, characterized in that: The battery charging and discharging management module is connected to the lithium battery.

6. A myofunctional rehabilitation apparatus circuit according to claim 5, characterized in that: ​

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