Modularized gait acquisition device

Abstract

The utility model discloses a modularized gait acquisition device, relates to the field of gait acquisition devices, aims to solve the problems that in the prior art, a small-size gait acquisition device is limited in detection range, and a large-size gait acquisition device is inconvenient to store, and adopts the technical scheme that the modularized gait acquisition device comprises a main body, one end of the main body is provided with a fixed clamping block and a signal transmission plug, the other end is provided with a fixed clamping groove and a signal transmission interface, and the fixed clamping block and the fixed clamping groove correspond in position and are matched in size; the device not only can be used independently, but also can establish a topological structure to establish a data stream after modular splicing, and when large-area gait acquisition is needed, the gait acquisition device can be modularly expanded. And the main body is provided with the anti-skid foot supports and the positioning grooves, so that the stability can be improved during vertical stacking storage, the occupied space area of storage is reduced, and the safety during storage can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of gait acquisition device technology, specifically a modular gait acquisition device. Background Technology

[0002] Current gait acquisition devices, due to their limited length, cannot collect continuous gait data, leading to biased evaluation results. Furthermore, while flexible gait acquisition devices on the market have achieved some length extension, their acquisition accuracy cannot meet higher clinical medical needs. Moreover, existing gait acquisition devices cannot be lengthened for different application scenarios, and large gait acquisition devices occupy significant space when stored. Utility Model Content

[0003] The technical problem to be solved by this invention is to overcome the existing defects and provide a modular gait acquisition device that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model discloses a modular gait acquisition device. The technical solution includes a main body connected to a gait acquisition board, on which a pressure sensor is located. A microprocessor is located within the main body and electrically connected to the pressure sensor. The main body also has a power interface and a USB interface, both electrically connected to the microprocessor. One end of the main body is provided with a fixing block and a signal transmission plug, while the other end is provided with a fixing slot and a signal transmission interface. The fixing block and the fixing slot are positioned and matched in size. The signal transmission plug and the signal transmission interface are electrically connected to the microprocessor. The fixing slot guides the insertion of the fixing block, thereby constraining the orientation of the docking of two adjacent modular gait acquisition devices. The data transmission plug and data transmission interface provide hardware support for a modular bus topology.

[0005] In a preferred embodiment of this invention, the signal transmission plug and the microprocessor are connected by a flexible connection. The main body has a sliding hole, and a fixing block is connected to the signal transmission plug and slidably connected within the sliding hole. A slider is connected to the fixing block, and a sliding groove is provided on the main body, in which the slider slidably connects. The signal transmission interface is located within the fixing groove. When the gait acquisition device is used alone, the fixing block and the signal transmission plug can be retracted into the sliding hole to protect the signal transmission plug.

[0006] As a preferred technical solution of this utility model, the bottom surface of the main body has anti-slip feet and the top surface has positioning grooves. The anti-slip feet and positioning grooves are corresponding in position and matched in size, which can prevent relative sliding when stacked and stored.

[0007] In a preferred embodiment of this invention, the main body contains a battery pack, which is connected to a power supply circuit. The power supply circuit is connected to a microprocessor, and a power interface is connected to a charge / discharge management circuit, which in turn is connected to the battery pack. The battery pack can power the gait acquisition device, and the power interface can be connected to an external power source to charge the battery pack.

[0008] Compared with existing technologies, the advantages of this invention are as follows: By setting fixed blocks and fixed slots on the main body, and setting signal transmission plugs and signal transmission interfaces at the connection points, each gait acquisition device has an independent processor, power supply module, and USB interface. This allows each gait acquisition device to be used independently, and also enables modular assembly through the fixed blocks and fixed slots. Data flow is established through the signal transmission plugs and signal transmission interfaces to create a topology. When large-area gait acquisition is required, the gait acquisition devices can be modularly expanded. The anti-slip feet and positioning grooves on the main body improve stability when vertically stacked for storage, thereby reducing the space occupied during storage and ensuring safety during storage. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the signal transmission connector in its retracted state according to this utility model;

[0010] Figure 2 This is a schematic diagram of the extended state structure of the signal transmission connector of this utility model;

[0011] Figure 3 This is a schematic diagram of the modular docking method of this utility model;

[0012] Figure 4 This is a schematic diagram of the stacking method for storage according to this utility model;

[0013] Figure 5 This is a circuit connection schematic diagram of this utility model.

[0014] In the diagram: 1. Main body; 2. Gait acquisition board; 3. USB interface; 4. Power interface; 5. Slide groove; 6. Anti-slip foot support; 7. Positioning groove; 8. Signal transmission plug; 9. Fixing block; 10. Fixing slot; 11. Signal transmission interface. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0016] like Figures 1 to 5 As shown, this utility model discloses a modular gait acquisition device. The technical solution includes a main body 1 and a gait acquisition board 2. The main body 1 consists of a main component and a sub-component, both of which are square shell structures. The gait acquisition board 2 is located between the main and sub-components. The main component contains a microprocessor and a lithium battery pack. A switch, a USB interface 3, and a power interface 4 are provided on the side wall of the main component. The microprocessor is connected to a power supply circuit, which in turn connects to the lithium battery pack. The lithium battery pack is connected to a charge / discharge management circuit, which is connected to a 12V power interface 4. The microprocessor is also electrically connected to a northbridge chipset and a southbridge chipset. The northbridge chipset connects to a memory card controller, which in turn connects to a memory card slot for data storage. The southbridge chipset connects to a USB controller, which in turn connects to the USB interface 3. The power supply circuit provides power to both the northbridge and southbridge chipsets. The gait acquisition board 2 has a pressure sensor, and the switch, pressure sensor, and microprocessor are electrically connected.

[0017] In order to achieve modular expansion, such as Figures 1 to 3 As shown, one end of the main body 1 has a sliding hole, and the other end has a fixing slot 10. The cross-sectional configuration of the sliding hole is the same as that of the fixing slot 10, with a cylindrical cavity in the middle and fan-shaped cavities connected to the left and right sides. A signal transmission plug 8 slides in contact with the cylindrical hole, and a fixing block 9 slides in contact with the fan-shaped cavities. A sliding groove 5 is opened on the side wall of the main body 1, which is connected to the fixing slot 10. A slider is connected to the fixing block 9, and the slider slides in the sliding groove 5. The fixing slot 10 of the main component has a signal transmission interface 11, which is matched with the position of the signal transmission plug 8, and the two can be plugged in to form a signal transmission channel. The signal transmission plug 8 is an RS-485 output interface, and the signal transmission interface 11 is an RS-485 input interface. After connecting to the conversion IC, they are electrically connected to the microprocessor. The fixing block 9 of the sub-component is connected to a directional post in the middle, and the fixing slot 10 has a directional groove. The directional post and the directional groove are corresponding in position and matched in size.

[0018] To facilitate stacking and storage, anti-slip feet 6 are provided on the bottom surface of the main body 1, and positioning grooves 7 are provided on the top surface. The anti-slip feet 6 and positioning grooves 7 are positioned and matched in size.

[0019] The modular gait acquisition device consists of multiple components: one main unit, one end sub-unit, and the rest relay sub-units. A 120Ω terminating resistor is connected in parallel at the RS-485 interface of the end sub-unit to eliminate signal reflection. The microprocessors of all sub-units have independent coding.

[0020] The working principle of this utility model:

[0021] Turn on the power supply; it is powered by a lithium battery pack, or the power interface 4 can be connected to an external power source. The person being tracked walks on the gait acquisition board 2, and the microprocessor collects pressure data through pressure sensors and stores it in a memory card. The data can be exported by inserting a USB flash drive into the USB interface 3.

[0022] When modular expansion is required, the number of repeater devices is selected according to the expansion needs. Taking two repeater devices as an example, the slider of the first repeater device is pushed to slide along the slide groove 5, and the fixing block 9 and the signal transmission plug 8 (the same applies to the directional post of the sub-component) slide out of the slide hole. The fixing block 9 of the first repeater device is aligned with the fixing slot 10 of the mother device and inserted, and the signal transmission plug 8 is inserted into the signal transmission interface 11 to establish a signal transmission channel. The second repeater device and the terminal device are connected sequentially at the rear end of the first repeater device in the same way to realize modular expansion.

[0023] The microprocessor of the parent device transmits a detection signal to the back end. The detection signal passes sequentially through the first relay sub-device, the second relay sub-device, and the terminal sub-device. After receiving the detection signal, the first relay sub-device adds a sequence number tag as its sequence and passes the detection signal forward. After receiving the detection signal, the second relay sub-device adds a sequence number tag as its sequence and passes it to the terminal sub-device. After receiving the detection signal, all sub-devices send a feedback signal to the parent device. The feedback signal contains their respective microprocessor-independent codes and sequence tags. The microprocessor of the parent device numbers the relay sub-devices according to the received microprocessor-independent codes and sequence tags and places the terminal sub-device at the end.

[0024] The person being tracked walks on the gait acquisition board 2. The microprocessor collects pressure data through pressure sensors and stores it in their respective memory cards. The data can be exported separately by inserting a USB flash drive into the USB interface 3. At the same time, the microprocessor of the sub-device transmits the detection data from the pressure sensors to the microprocessor of the parent device through the signal transmission channel. Each data transmission is accompanied by an address mark and timestamp with independent encoding of the sub-device microprocessor. After receiving the signal, the microprocessor of the parent device summarizes the received detection data and organizes the data according to the address mark and timestamp. The organized data is stored in the memory card of the parent device. The entire data can be exported by inserting a USB flash drive into the USB interface 3 of the parent device.

[0025] After using the technology, separate the connection and slide the slider to retract the fixing block 9 and signal transmission plug 8 into the sliding hole. Stack them for storage. When stacking, the upper anti-slip feet 6 sit in the positioning groove 7 of the lower layer to improve stability.

[0026] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0027] Components not described in detail in this article are existing technologies.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular gait acquisition device, comprising a main body (1), wherein a gait acquisition plate (2) is connected to the main body (1), a pressure sensor is mounted on the gait acquisition plate (2), a microprocessor is located within the main body (1), the microprocessor is electrically connected to the pressure sensor, and the main body (1) also has a power interface (4) and a USB interface (3), both of which are electrically connected to the microprocessor, characterized in that: One end of the main body (1) is provided with a fixing block (9) and a signal transmission plug (8), and the other end is provided with a fixing slot (10) and a signal transmission interface (11). The fixing block (9) and the fixing slot (10) are in corresponding positions and matched in size. The signal transmission plug (8) and the signal transmission interface (11) are electrically connected to the microprocessor.

2. The modular gait acquisition device according to claim 1, characterized in that: The signal transmission plug (8) and the microprocessor are softly connected. The main body (1) has a sliding hole. The fixing block (9) is connected to the signal transmission plug (8) and is slidably connected in the sliding hole. The fixing block (9) is connected to a slider. The main body (1) has a sliding groove (5) and the slider is slidably connected in the sliding groove (5). The signal transmission interface (11) is located in the fixing groove (10).

3. The modular gait acquisition device according to claim 1, characterized in that: The main body (1) has anti-slip foot support (6) on the bottom surface and positioning groove (7) on the top surface. The anti-slip foot support (6) and positioning groove (7) are in corresponding positions and matched in size.

4. The modular gait acquisition device according to claim 1, characterized in that: The main body (1) contains a battery pack, which is connected to a power supply circuit. The power supply circuit is connected to a microprocessor. The power interface (4) is connected to a charge / discharge management circuit, which is connected to the battery pack.

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