Motion track acquisition device

Abstract

The utility model belongs to the technical field of acquisition devices, and particularly relates to an action track acquisition device which comprises a connecting base, a sensor is installed on the connecting base, two sets of U-shaped limiting rods are hinged to the connecting base, two sets of fixing blocks are fixedly installed on the connecting base, cylindrical grooves are formed in the fixing blocks, and the U-shaped limiting rods are hinged to the U-shaped limiting rods. Cylindrical grooves are formed in the fixing blocks, springs are installed in the cylindrical grooves, sliding frames and limiting columns are installed on the fixing blocks in a sliding mode, the limiting columns are fixedly connected with the sliding frames, limiting through holes are formed in the U-shaped limiting rods, the limiting columns are matched with the limiting through holes, and the limiting columns are pulled into the fixing blocks under the action of the sliding frames by pulling the two sets of sliding frames. After the U-shaped limiting rods are closed, the sliding frame is loosened, and under the action of the springs, the two sets of limiting columns abut against the limiting through holes of the corresponding U-shaped limiting rods, so that the sensor is rapidly and firmly positioned, and the accuracy of collected data is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of collection device, specifically is a kind of action trajectory collection device. BACKGROUND

[0002] In construction site, we use visual scheme positioning and panoramic camera, realize BIM model, photograph, action trajectory three data space and time relationship binding of scene. However, this technique also has limitation, since action trajectory relies on visual scheme, for degenerative scene, such as too few feature points pure color plane, too dark local scene, similar long straight pipe, visual scheme will not work, leading to unable to generate correct action trajectory.

[0003] Therefore, for this kind of scene, in addition to visual scheme, the scheme of generating trajectory using PDR equipment is also proposed, which uses IMU combined with PDR algorithm to generate action trajectory. However, since PDR equipment calculates action trajectory based on pedestrian walking speed, it needs to connect the sensor and the shoe rigidly to avoid the flexible connection from causing the sensor data to contain motion data and device flexible connection shaking data during movement, leading to calculation error. In order to improve the connection strength between the connecting piece and the sensor and increase the accuracy of collected data, we propose an action trajectory collection device. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides an action trajectory collection device, by pulling two groups of sliding frames, the limiting column is pulled into the fixed block under the action of the sliding frame, when the U-shaped limiting rod is closed, the sliding frame is loosened, under the action of the spring, the two groups of limiting columns are resisted into the limiting through hole of the corresponding U-shaped limiting rod, so that the sensor is quickly and firmly positioned, the accuracy of collected data is increased, and the background problem is solved.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0006] An action trajectory collection device, comprising a connecting base, a sensor mounted on the connecting base, two groups of U-shaped limiting rods hinged to the connecting base, two groups of fixed blocks fixedly installed on the connecting base, a cylindrical slot formed in the fixed block, a spring installed in the cylindrical slot, a sliding frame and a limiting column slidingly installed on the fixed block, the limiting column being fixedly connected with the sliding frame, a limiting through hole formed in the U-shaped limiting rod, and the limiting column cooperating with the limiting through hole.

[0007] Preferably, the sensor is provided with a charging hole, the sensor is provided with a matching slot, the connecting base is fixedly installed with flexible lugs, the flexible lugs are matched with the charging hole, and the connecting base is integrally installed with auxiliary blocks.

[0008] Preferably, the U-shaped limiting rods are fixedly installed with two groups of rubber pads, and the U-shaped limiting rods are fixedly connected through a plurality of connecting rods.

[0009] Preferably, the connecting base is provided with three groups of semicircular grooves.

[0010] Preferably, the bottom surface of the connecting base is provided as an arc surface.

[0011] Preferably, the bottom of the connecting base is provided with a plurality of air holes.

[0012] The utility model provides a kind of action trajectory acquisition device.Compared with prior art, it has the following beneficial effects:

[0013] The action trajectory acquisition device is pulled by two groups of sliding frames, and the limiting column is pulled into the fixed block under the action of the sliding frame.When the U-shaped limiting rod is closed, the sliding frame is loosened, and the two groups of limiting columns are resisted into the limiting through hole of the corresponding U-shaped limiting rod under the action of the spring, so that the sensor is quickly and firmly positioned, and the accuracy of the collected data is increased. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the top view of the main structure of the utility model;

[0015] Figure 2 It is the bottom view of the main structure of the utility model;

[0016] Figure 3 It is the schematic diagram of the utility model without sensor;

[0017] Figure 4 It is the schematic diagram of the sensor of the utility model;

[0018] Figure 5 It is the internal schematic diagram of the fixed block of the utility model;

[0019] Figure 6 It is the utility model Figure 3 The enlarged schematic diagram of A in the utility model.

[0020] In the figure: 1, connecting base; 2, sensor; 3, fixed block; 4, arc surface; 5, air hole; 6, auxiliary block; 7, U-shaped limiting rod; 8, connecting rod; 9, semicircular groove; 10, flexible lug; 11, matching slot; 12, charging hole; 13, sliding frame; 14, limiting column; 15, spring; 16, rubber pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-6 The utility model provides a kind of technical solutions: a kind of action trajectory acquisition device, including connecting base 1, sensor 2 is installed on connecting base 1, two groups of U type limit rod 7 are hinged on connecting base 1, two groups of fixed blocks 3 are fixedly installed on connecting base 1, cylindrical slot is opened in fixed block 3, spring 15 is installed in cylindrical slot, sliding frame 13 and limit post 14 are slidably installed on fixed block 3, limit post 14 is fixedly connected with sliding frame 13, limit through-hole is opened in U type limit rod 7, and limit post 14 cooperates with limit through-hole;Charging hole 12 is provided on sensor 2, cooperation slot 11 is opened in sensor 2, flexible lug 10 is fixedly installed on connecting base 1, flexible lug 10 cooperates with charging hole 12, auxiliary block 6 is integrally installed on connecting base 1;

[0023] When using, first one end of sensor 2 is fixed to the left side position on connecting base 1, then the right side of connecting base 1 is expanded by lightly pressing auxiliary block 6, and is pressed into sensor 2, and then the pressing of auxiliary block 6 is released, under the cooperation of cooperation slot 11, flexible lug 10 is clamped into charging hole 12, so that the preliminary positioning of sensor 2 is realized;Then two groups of U type limit rod 7 are closed, two groups of sliding frames 13 are pulled, under the cooperation of fixed block 3, two groups of limit posts 14 are pulled into the inside of fixed block 3, then U type limit rod 7 is moved to specified position, then two groups of sliding frames 13 are loosened, under the cooperation of spring 15, limit post 14 is resisted into the limit through-hole of U type limit rod 7, so that the quick and firm positioning of sensor 2 is realized.

[0024] Two groups of rubber pads 16 are fixedly installed on U type limit rod 7, and the plurality of connecting rods 8 are fixedly connected between U type limit rod 7;Rubber pad 16 can increase the friction between U type limit rod 7 and sensor 2, so as to improve the connection strength, and connecting rod 8 can make two groups of U type limit rod 7 close or open at the same time, which is convenient to operate.

[0025] Three groups of semi-arc grooves 9 are formed on the connecting base 1; the bottom surface of the connecting base 1 is arranged as an arc surface 4; a plurality of air holes 5 are formed on the bottom of the connecting base 1; the semi-arc grooves 9 are used for fixing the shoelaces to pass through, and the three groups greatly increase the connecting strength, and the arc surface 4 is used to reduce the discomfort of the feet of the personnel to the connecting base 1, and the air holes 5 prevent the feet of the personnel from being hot and humid, thereby reducing the influence on data acquisition.

[0026] Working principle: in use, first, one end of the sensor 2 is fixed to the left position on the connecting base 1, then the right side of the connecting base 1 is expanded outward by lightly pressing the auxiliary block 6, and the auxiliary block 6 is released after being pressed, and the flexible lug 10 is clamped into the charging hole 12 under the cooperation of the groove 11, so as to realize the preliminary positioning of the sensor 2; then the two groups of U-shaped limiting rods 7 are closed, the two groups of sliding frames 13 are pulled, and the two groups of limiting rods 14 are pulled into the fixed block 3 under the cooperation of the fixed block 3, then the U-shaped limiting rod 7 is moved to the specified position, and then the two groups of sliding frames 13 are loosened, and the limiting rod 14 is clamped into the limiting hole of the U-shaped limiting rod 7 under the cooperation of the spring 15, so as to realize the quick and firm positioning of the sensor 2;

[0027] Three groups of semi-arc grooves 9 are formed on the connecting base 1; the bottom surface of the connecting base 1 is arranged as an arc surface 4; a plurality of air holes 5 are formed on the bottom of the connecting base 1; the semi-arc grooves 9 are used for fixing the shoelaces to pass through, and the three groups greatly increase the connecting strength, and the arc surface 4 is used to reduce the discomfort of the feet of the personnel to the connecting base 1, and the air holes 5 prevent the feet of the personnel from being hot and humid, thereby reducing the influence on data acquisition;

[0028] This design effectively improves the connecting strength between the connecting base 1 and the sensor 2, and increases the accuracy of data acquisition.

[0029] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A motion trajectory acquisition device comprising a connecting base (1), characterized in that: The connecting base (1) is provided with a sensor (2), the connecting base (1) is hingedly provided with two groups of U-shaped limiting rods (7), the connecting base (1) is fixedly provided with two groups of fixed blocks (3), the fixed block (3) is provided with a cylindrical slot, the spring (15) is installed in the cylindrical slot, the fixed block (3) is slidably provided with a sliding frame (13) and a limiting column (14), the limiting column (14) is fixedly connected with the sliding frame (13), the U-shaped limiting rod (7) is provided with a limiting hole, and the limiting column (14) is matched with the limiting hole.

2. The action trajectory acquisition device according to claim 1, characterized in that: The sensor (2) is provided with a charging hole (12), the sensor (2) is provided with a matching slot (11), the connecting base (1) is fixedly provided with a flexible lug (10), the flexible lug (10) is matched with the charging hole (12), and the connecting base (1) is integrally provided with an auxiliary block (6).

3. The action trajectory acquisition device according to claim 1, characterized in that: The U-shaped limiting rod (7) is fixedly provided with two groups of rubber pads (16), and the U-shaped limiting rods (7) are fixedly connected through a plurality of connecting rods (8).

4. The action trajectory acquisition device according to claim 1, characterized by: The connecting base (1) is provided with three groups of semicircular grooves (9).

5. The action trajectory acquisition device according to claim 1, characterized by: The bottom surface of the connecting base (1) is provided as an arc surface (4).

6. The action trajectory acquisition device according to claim 1, characterized by: The bottom of the connecting base (1) is provided with a plurality of air holes (5).

Images