Synchronous trigger for foot three-dimensional motion capture system

Abstract

The utility model relates to a synchronous trigger for a foot three-dimensional motion capture system. The synchronous trigger comprises a control box; the ARM controller, the power supply module, the WIFI wireless communication module and the synchronous interface module are integrally arranged in the control box; the ARM controller is connected with the foot three-dimensional motion capturing system through the WIFI wireless communication module, and the foot three-dimensional motion capturing system is used for collecting foot three-dimensional motion information of a patient; the ARM controller is connected with the commercial synchronizer through the synchronous interface module, the commercial synchronizer is connected with the commercial three-dimensional motion capture system, and the commercial three-dimensional motion capture system is used for collecting motion information of the lower limbs and the spine of a patient; and the power supply module is used for providing electric energy for the ARM controller. The device can be widely applied to the field of biomechanics.

Description

TECHNICAL FIELD

[0001] The utility model relates to a synchronous trigger for foot three-dimensional motion capture system belongs to biomechanics field. BACKGROUND

[0002] The foot is located at the most distal end of the human body, and whether the joint movement is normal will affect the other joint force lines of the foot, lower limbs and spine. The human body repeatedly suffers from abnormal joint movement, which can cause soft tissue overuse injury, and long time can cause body pain, spinal scoliosis and joint wear. Quantitative three-dimensional motion analysis of foot joint movement helps to find problems early and provides a new evaluation method for foot and ankle rehabilitation.

[0003] The movement of the foot will cause a chain reaction of the lower limbs and the spine, and simultaneously evaluating the movement of the foot joint and the movement of the hip, knee, ankle and spine helps to understand the chain reaction as a whole. However, the commercial three-dimensional motion capture system based on the inertial measurement unit on the market can only capture the movement of the large joints of the human body, and cannot capture the movement of the small joints of the foot. SUMMARY

[0004] In view of the above problems, the purpose of the utility model is to provide a synchronous trigger for foot three-dimensional motion capture system, which supports the synchronous use of commercial three-dimensional motion capture system and foot three-dimensional motion capture system. By synchronously working and synchronously collecting data of the two sets of motion capture systems, the joint movement information of the whole body can be obtained.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A synchronous trigger for foot three-dimensional motion capture system, comprising:

[0007] A control box;

[0008] An ARM controller, a power module, a WIFI wireless communication module and a synchronization interface module are integrally arranged in the control box;

[0009] The ARM controller is connected with the foot three-dimensional motion capture system through the WIFI wireless communication module, and the foot three-dimensional motion capture system is used for collecting the three-dimensional motion information of the foot of the patient;

[0010] The ARM controller is connected with the commercial synchronizer through the synchronization interface module, the commercial synchronizer is connected with the commercial three-dimensional motion capture system, and the commercial three-dimensional motion capture system is used for collecting the motion information of the lower limbs and the spine of the patient;

[0011] The power module is used for providing electric energy for the ARM controller.

[0012] Further, the power module comprises a power supply module and a battery, the power supply module is connected with the ARM controller and the battery respectively at two ends, and is used for converting the power provided by the battery into the required power of the ARM controller;

[0013] A toggle switch is further arranged between the power supply module and the battery, and is used for controlling the battery to be in a power supply state or a charging state.

[0014] The battery is further connected with a USB interface arranged on the control box, and charging is realized.

[0015] Further, the battery is a 3.7V lithium battery.

[0016] Further, the synchronous interface module comprises an interface board and a single-channel plug, the interface board is connected with the ARM controller and the single-channel plug respectively, and the single-channel plug is connected with the commercial synchronizer.

[0017] Further, the single-channel plug is a 3.5mm single-channel plug.

[0018] Further, the foot three-dimensional motion capture system comprises a foot motion acquisition and analysis system, a plurality of foot joint motion IMU measuring units, two foot gait motion FSR measuring units, a handheld controller and a wireless switch.

[0019] The handheld controller and the foot motion acquisition and analysis system send instructions to the foot joint motion IMU measuring units, the foot gait motion FSR measuring units and the synchronous trigger through the wireless switch.

[0020] The foot joint motion IMU measuring units and the foot gait motion FSR measuring units move according to the received instructions, and send the collected foot joint motion data and foot gait motion data to the foot motion acquisition and analysis system.

[0021] The synchronous trigger sends the received instructions to the commercial synchronizer through the synchronous interface module, so that the commercial three-dimensional motion capture system and the foot three-dimensional motion capture system synchronously collect data or stop collecting data.

[0022] The utility model discloses a foot three-dimensional motion capture system, a commercial three-dimensional motion capture system and a synchronous trigger, and the synchronous trigger is connected between the foot three-dimensional motion capture system and the commercial three-dimensional motion capture system.

[0023] Therefore, the utility model can be widely applied to biomechanics field. BRIEF DESCRIPTION OF DRAWINGS

[0024] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments and are not meant to limit the present utility. Throughout the drawings, the same reference designates the same elements. In the drawings:

[0025] Fig. 1 is the circuit connection drawing of the synchronous trigger for the foot three-dimensional motion capture system provided by the utility model embodiment;

[0026] Fig. 2 is the real object drawing of the synchronous trigger for the foot three-dimensional motion capture system provided by the utility model embodiment;

[0027] Fig. 3 is the working principle drawing of the synchronous trigger for the foot three-dimensional motion capture system provided by the utility model embodiment. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme of the utility model embodiments will be described clearly and completely in combination with the drawings of the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the utility model.

[0029] It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the utility model. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0030] The utility model provides a kind of synchronous trigger for foot three-dimensional motion capture system in some embodiments of the utility model, it includes: control box and the ARM controller, power module, WIFI wireless communication module, synchronization interface module integrated in control box. ARM controller is connected with foot three-dimensional motion capture system by WIFI wireless communication module, is connected with third party commercial synchronizer by synchronization interface module, and third party commercial synchronizer is connected with third party commercial three-dimensional motion capture system. The synchronous trigger provided by the utility model can be according to the synchronous acquisition signal received synchronous control third party commercial three-dimensional motion capture system synchronous acquisition synchronous work, and then acquire the joint motion information of whole body.

[0031] Embodiment 1

[0032] As Figs. 1-3 shown, the utility model provides a kind of synchronous trigger for foot three-dimensional motion capture system, it includes: control box and the ARM controller, power module, WIFI wireless communication module and synchronization interface module integrated in control box. Wherein, ARM controller is connected with foot three-dimensional motion capture system by WIFI wireless communication module, for gathering the foot three-dimensional motion information of patient;ARM controller is connected with third party commercial synchronizer by synchronization interface module, and third party commercial synchronizer is connected with third party commercial three-dimensional motion capture system, for gathering the motion information of the lower limbs and spine of patient;Power module is used to provide electric energy for ARM controller.

[0033] Further, power module includes power supply module and battery, wherein, power supply module two ends are connected with ARM controller and battery respectively, for converting the electric energy provided by battery into the electric energy required by ARM controller;Power supply module and battery are further provided with toggle switch between, for controlling battery to be in power supply or charging state;Battery is further connected with the USB interface that is arranged on control box, realizes charging.

[0034] Further, battery uses 3.7V lithium battery.

[0035] Further, synchronization interface module includes interface board and 3.5mm single-channel plug, wherein, interface board is connected with ARM controller and 3.5mm single-channel plug respectively, and 3.5mm single-channel plug is connected with third party commercial synchronizer.

[0036] Further, the foot three-dimensional motion capture system comprises a foot motion acquisition and analysis system, a plurality of foot joint motion IMU measurement units, two foot gait motion FSR measurement units, a handheld controller, and a wireless switch. The handheld controller and the foot motion acquisition and analysis system send a "start acquisition" or "stop acquisition" instruction to each foot joint motion IMU measurement unit, foot gait motion FSR measurement unit, and a synchronous trigger through the wireless switch; each foot joint motion IMU measurement unit and foot gait motion FSR measurement unit act according to the received instruction, and send the acquired foot joint motion data and foot gait motion data to the foot motion acquisition and analysis system; the synchronous trigger synchronously sends the received "start acquisition" or "stop acquisition" to a third-party commercial synchronizer, so that the third-party commercial three-dimensional motion capture system and the foot three-dimensional motion capture system synchronously acquire data or stop acquiring data.

[0037] The working principle of the utility model is:

[0038] The synchronous trigger is powered on by turning on the switch, the foot three-dimensional motion capture system is wirelessly connected with the synchronous trigger, the synchronous trigger is connected with a commercial synchronizer (for example, Noraxon MyoSync) of the commercial three-dimensional motion capture system through a 3.5mm single-channel plug, sends a synchronization pulse to the commercial synchronizer, the synchronization pulse rises when starting to record data and falls until stopping to record data, and thus the data acquisition software of the commercial three-dimensional motion capture system can automatically start and stop recording.

[0039] After the synchronous trigger receives the "start acquisition" command sent by the foot three-dimensional motion capture system, it sends a continuous high-level signal to the third-party commercial synchronizer, and the third-party commercial three-dimensional motion capture system starts to acquire motion data after detecting the rising edge of the pulse signal.

[0040] After the synchronous trigger receives the "stop acquisition" command sent by the foot three-dimensional motion capture system, it sends a continuous low-level signal to the third-party commercial synchronizer, and the third-party commercial three-dimensional motion capture system stops acquiring motion data after detecting the falling edge of the pulse signal.

[0041] It should be explained finally: the above examples are only used to illustrate the technical scheme of the utility model and not to limit it, although the utility model has been explained in detail with reference to the above examples, the ordinary skilled in the art should understand that: the specific implementation of the utility model can still be modified or replaced, and any modification or equivalent replacement without departing from the spirit and scope of the utility model should be covered in the protection scope of the claims of the utility model.

Claims

1. A sync trigger for a foot three-dimensional motion capture system, characterized in that, The utility model relates to a kind of three-dimensional motion capture system of lower limbs and spine, including: control box;ARM controller, power module, WIFI wireless communication module and synchronous interface module integrated in the control box are set;The ARM controller is connected with foot three-dimensional motion capture system by WIFI wireless communication module, and foot three-dimensional motion capture system is used to gather the three-dimensional motion information of patient's foot;The ARM controller is connected with commercial synchronizer by synchronous interface module, and commercial synchronizer is connected with commercial three-dimensional motion capture system, and commercial three-dimensional motion capture system is used to gather the motion information of patient's lower limbs and spine;The power module is used to provide electric energy for the ARM controller. The power module includes power supply module and battery, and the power supply module is connected with the ARM controller and battery respectively at both ends, for converting the electric energy provided by the battery into the required electric energy of the ARM controller. The power supply module and the battery are further provided with a toggle switch, for controlling the battery to be in power supply or charging state. The battery is further connected with USB interface arranged on the control box, to realize charging. The battery uses 3.7V lithium battery. The synchronous interface module includes interface board and single-channel plug, and the interface board is connected with the ARM controller and the single-channel plug respectively, and the single-channel plug is connected with the commercial synchronizer.

2. A synchronization trigger for a three-dimensional foot motion capture system as claimed in claim 1, characterized in that, The single-channel plug is 3.5mm single-channel plug. The foot three-dimensional motion capture system includes foot motion acquisition and analysis system, a plurality of foot joint motion IMU measuring units, two foot gait motion FSR measuring units, handheld controller and wireless switch. The handheld controller and foot motion acquisition and analysis system send instructions to each foot joint motion IMU measuring unit, foot gait motion FSR measuring unit and synchronous trigger through wireless switch.

3. A synchronization trigger for a three-dimensional foot motion capture system as claimed in claim 2, characterized in that Each foot joint motion IMU measuring unit and foot gait motion FSR measuring unit moves according to the received instructions, and sends the collected foot joint motion data and foot gait motion data to the foot motion acquisition and analysis system.

4. A synchronization trigger for a three-dimensional foot motion capture system as in claim 1, wherein, The synchronous trigger synchronously sends the received instructions to the commercial synchronizer through the synchronous interface module, so that the commercial three-dimensional motion capture system and the foot three-dimensional motion capture system synchronously collect data or stop collecting data.

5. A synchronization trigger for a foot three-dimensional motion capture system as claimed in claim 4, characterized in that, ​ 6. A synchronization trigger for a three-dimensional foot motion capture system as in claim 1, wherein, ​ ​ ​ ​

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