Wearable motion acquisition device based on flexible strain sensor

Abstract

The utility model discloses a wearable motion acquisition device based on flexible strain sensors, which comprises an elastic sleeve, and a plurality of flexible strain sensors are arranged on the inner wall or the outer wall of the elastic sleeve at intervals along the length direction; and a recording box is arranged at one end of the outer wall of the elastic sleeve, is electrically connected with the plurality of flexible strain sensors and is used for acquiring data of the flexible strain sensors. According to the wearable exercise acquisition device, through the flexible strain sensor directly installed on the elastic sleeve, tiny deformation of local muscles can be captured with high sensitivity, accurate monitoring of the exercise amplitude and the exercise times of a specific part is achieved, and the problem that traditional wearable equipment is difficult to monitor a single part in detail is solved.

Description

Technical Field

[0001] The utility model relates to a wearable motion collection device based on a flexible strain sensor, belonging to the technical field of wearable motion collection devices. Background Art

[0002] With the development and popularization of smart products, wearable electronic devices have shown broad application prospects. Among these devices, flexible and stretchable strain sensors have been widely studied because they can meet the requirements of small size, light weight, flexibility, and can be installed on the skin. In particular, resistance sensors with simple structures are easy to collect signals and convert stress / strain into resistance changes. In recent years, flexible strain sensors have played an important role in medical monitoring, human motion monitoring and other fields.

[0003] In the prior art, wearable motion collection devices usually use smart watches, smart bracelets, or collect muscle movement signals by collecting electromyographic signals. In actual work, the above schemes cannot effectively collect information on a single part, such as the amplitude of muscle movement in the arm during gripping movements, and the number of movements.

[0004] Therefore, there is a need for a wearable motion acquisition device based on a flexible strain sensor that solves the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a wearable motion acquisition device based on a flexible strain sensor. By directly installing the flexible strain sensor on an elastic sleeve, it is possible to capture tiny deformations of local muscles with high sensitivity, thereby realizing accurate monitoring of the movement amplitude and number of movements of a specific part, thus solving the problem that traditional wearable devices are difficult to monitor a single part in detail.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A wearable motion acquisition device based on a flexible strain sensor comprises an elastic sleeve, on which a plurality of flexible strain sensors are arranged at intervals along the length direction on the inner wall or the outer wall of the elastic sleeve; a recording box is arranged at one end of the outer wall of the elastic sleeve, and the recording box is electrically connected to the plurality of flexible strain sensors for collecting data from the flexible strain sensors.

[0008] Preferably, both ends of each of the flexible strain sensors are connected with sensing wires, the sensing wires are connected to a socket, a plug is provided on the recording box, and the plug is plugged into the socket.

[0009] Preferably, a hidden cloth sleeve is sewn on the elastic sleeve along the length direction, the socket is arranged at one end of the hidden cloth sleeve close to the recording box, and the sensor line is connected to the socket after passing through the hidden cloth sleeve.

[0010] Preferably, a first Velcro is provided at the bottom of the recording box, and a second Velcro is provided on the outer wall of the elastic sleeve, and the recording box is fixed on the elastic sleeve by the fitting of the first Velcro and the second Velcro.

[0011] Preferably, the recording box is provided with a processor, a memory, a power supply and a USB interface, the processor is electrically connected to the plug and the memory respectively, the memory is electrically connected to the USB interface, and the power supply is connected to the processor.

[0012] The beneficial effects of the utility model are:

[0013] 1. Accurate monitoring and enhanced adaptability: The flexible strain sensor directly installed on the elastic sleeve can capture the tiny deformation of local muscles (such as forearms or calves) with high sensitivity, and accurately monitor the movement amplitude and frequency of specific parts, solving the problem that traditional wearable devices are difficult to monitor a single part in detail.

[0014] 2. Improved comfort and flexibility: The elastic sleeve made of elastic fabric ensures that the wearable device fits well with the skin and is comfortable to wear, without affecting the user's daily activities or sports performance. At the same time, the flexible design of the sensor enables the device to adapt to the limb shapes of different users, improving the naturalness and seamless experience during use.

[0015] 3. Convenient data processing and storage: The integrated processor and memory system can instantly process the data collected from the flexible strain sensor, automatically analyze the user's exercise status and exercise volume, and efficiently store the data in the device. The USB interface design allows users to connect external devices to read data at any time, which is convenient for subsequent analysis or sharing with professionals for evaluation.

[0016] 4. Ease of use and maintenance: The innovative use of Velcro design allows the recording box to be easily fixed and removed, which not only simplifies the process of putting on and taking off the device, but also facilitates the charging, data transmission and daily maintenance of the device, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a wearable motion acquisition device;

[0018] Figure 2 It is a connection diagram of the components in the record box.

[0019] The main reference numerals in the figure have the following meanings:

[0020] 1. Elastic sleeve, 2. Recording box, 3. Flexible strain sensor, 4. Sensing line, 5. Hidden cloth sleeve, 6. Socket, 7. First Velcro, 8. Second Velcro, 9. Plug, 10. Processor, 11. Memory, 12. Power supply, 13. USB interface. DETAILED DESCRIPTION

[0021] The utility model is specifically introduced below in conjunction with the accompanying drawings and embodiments.

[0022] This embodiment provides a wearable motion acquisition device based on a flexible strain sensor, see Figure 1 As shown, it includes an elastic sleeve 1 and a recording box 2. The elastic sleeve 1 is made of elastic fabric. A plurality of flexible strain sensors 3 are arranged at intervals on the outer wall of the elastic sleeve 1. Both ends of the flexible strain sensors 3 are connected to sensing wires 4. A hidden fabric sleeve 5 is sewn on the upper part of the elastic sleeve 1. The sensing wire 4 passes through the hidden fabric sleeve 5. A socket 6 is installed at one end of the hidden fabric sleeve 5. The socket 6 and the sensing wire 4 are electrically connected.

[0023] The lower surface of the recording box 2 is provided with a first Velcro 7, and the outer wall of the elastic sleeve 1 near the end of the socket 6 is provided with a second Velcro 8. The recording box 2 is fixed to the elastic sleeve 1 by the first Velcro 7 and the second Velcro 8. The recording box 2 has a plug 9, and the socket 6 is plugged with the plug 9, which is plugged into the socket 6. Figure 2 As shown, a processor 10, a memory 11, a power supply 12 and a USB interface 13 are provided in the recording box 2. The processor 10 is electrically connected to the plug 9 and the memory 11 respectively, the memory 11 is electrically connected to the USB interface 13, and the power supply 12 is connected to the processor 10 for supplying power to the system.

[0024] During operation, the elastic sleeve 1 is put on the forearm or calf. When grasping or standing on tiptoe, the muscles of the forearm or leg expand, thereby pushing the flexible strain sensor 3 to deform. The processor 10 can periodically or continuously collect the resistance change of the flexible strain sensor 3, and input the data of the resistance change value into the memory 11 for storage after processing. When it is necessary to read the data, the data in the memory 11 is read through the USB interface 13 external device, so as to judge the user's exercise state and exercise amount according to the data change value, and monitor the exercise data.

[0025] This wearable motion acquisition device provides users with an efficient, accurate and user-friendly motion monitoring solution with its high-precision monitoring capabilities, comfortable wearing experience, convenient data management and easy operation. It is particularly suitable for scenarios that require detailed tracking of the motion status of specific body parts, such as sports training, rehabilitation treatment and health management in daily life.

[0026] The above is only a preferred implementation of the utility model patent. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model patent. These improvements and modifications should also be regarded as the protection scope of the utility model patent.

Claims

1. A wearable motion acquisition device based on a flexible strain sensor, characterized in that: It includes an elastic sleeve, and a plurality of flexible strain sensors are arranged at intervals on the inner wall or outer wall of the elastic sleeve along the length direction; a recording box is arranged at one end of the outer wall of the elastic sleeve, and the recording box is electrically connected to the plurality of flexible strain sensors for collecting data of the flexible strain sensors.

2. A wearable motion acquisition device based on a flexible strain sensor according to claim 1, characterized in that: Both ends of each flexible strain sensor are connected with sensing wires, and the sensing wires are connected to a socket. A plug is provided on the recording box, and the plug is plugged into the socket.

3. A wearable motion acquisition device based on a flexible strain sensor according to claim 2, characterized in that: A hidden cloth sleeve is sewn on the elastic sleeve along the length direction, the socket is arranged at one end of the hidden cloth sleeve close to the recording box, and the sensor line is connected to the socket after passing through the hidden cloth sleeve.

4. A wearable motion acquisition device based on a flexible strain sensor according to claim 1, characterized in that: A first Velcro is arranged at the bottom of the recording box, and a second Velcro is arranged on the outer wall of the elastic sleeve. The recording box is fixed on the elastic sleeve by the fitting of the first Velcro and the second Velcro.

5. A wearable motion acquisition device based on a flexible strain sensor according to claim 1, characterized in that: The recording box is provided with a processor, a memory, a power supply and a USB interface. The processor is electrically connected to the plug and the memory respectively, the memory is electrically connected to the USB interface, and the power supply is connected to the processor.

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