CN217590906U - Video acquisition frame and device - Google Patents

Abstract

The utility model discloses a video acquisition frame with contain video acquisition frame's device, video acquisition frame includes base, the montant of height-adjustable, the horizontal pole of fixed camera, can follow horizontal pole horizontal migration and fixed camera fixing base and set up the light in the horizontal pole bottom. Through the height of adjusting the montant and the position of camera fixing base on the horizontal pole and the luminance of light, the video acquisition frame can provide the best condition of gathering for the video of animal behavioural experiment to provide technical support for obtaining the best experimental result.

Description

Video acquisition frame and device

Technical Field

The utility model belongs to biomedical engineering field, concretely relates to video acquisition frame and device.

Background

The behavioral analysis of the experimental animal as a research object comprises the observation and analysis of animal behaviors such as sensory perception test, motor function, emotion, learning and memory and the like. When the animal behaviors need to be analyzed finely, the animal behaviors cannot be observed only in real time, and often even each frame of a video needs to be confirmed repeatedly, so that the whole-process video acquisition of the animal behaviors is indispensable.

On the one hand, when carrying out animal behaviours experiment, in order to gather the video of animal behaviour, need be in action test box top installation camera to fix the camera in suitable position, clear, obtain the video or the picture that satisfy the experiment requirement high-efficiently, guarantee the meticulous analysis in experiment later stage. In performing the relevant experiments on live animals, the experiments are required to be performed in a barrier environment, depending on the welfare requirements of the experimental animals. Some researchers can fix the camera directly on the top plate of the room, which results in that the visual field of the target in the recorded video is very small, which is not beneficial to accurate extraction and analysis of the target. Some researchers have placed a fixed pole above the test device, but if it is not placed directly above the device, it will cause the recorded video to deform severely and the parameters analyzed will require additional correction. In addition, when fixing camera device, the researcher often uses adhesive tape multilayer winding for the time-saving and convenient dismantlement, and this brings the degree of difficulty for the disinfection in the room in the barrier, leads to the disinfection of microorganism not thorough, brings the hidden danger for the security of experimental environment.

On the other hand, in animal behavioral research, in order to accurately define a certain kind of behaviors of an animal, it is often impossible to perform only one behavior paradigm measurement, for example, when judging whether the animal shows anxiety, it is often necessary to perform an open field test, an elevated plus maze test, a light and dark box test, and the like. In order to provide stable and reliable performance of animals in different paradigms, the test chambers of these different paradigms are significantly different. For example: the standard test box for open field test of mice is cubic and has the size of 45cm multiplied by 45cm; the test box for the elevated plus maze test consists of two crossed open arms and closed arms, wherein the height of the device from the ground is 50cm, the size of the open arm is 50cm multiplied by 10cm, and the size of the closed arm is 50cm multiplied by 10cm multiplied by 40cm; the light and dark box consists of a light chamber and a dark chamber, and the light chamber and the dark chamber are 21cm multiplied by 25cm in size.

The existing video acquisition rack for animal behaviors mainly has the following defects: 1) The camera stand can only be used for video acquisition of a certain fixed behavior pattern, does not have the flexibility of vertical position and horizontal position, and when changing the pattern, needs to use new acquisition stand. 2) The shelf for video capture only supports one camera and cannot perform multi-channel video capture on one shelf. 3) When carrying out the action experiment, there is obvious difference in the illumination demand of different paradigms to the room, and some paradigms need the room to be in under the state of complete dark, and some needs have illumination intensity more than 100lux, in order to satisfy different illumination demands, need paste the fluorescent tube in the different positions in room, produce the shadow when the fluorescent tube position is improper can lead to the action incasement, and luminance is inhomogeneous to influence the behavioral expression of animal.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the inventor designs a video acquisition frame for animal behaviors. The position of this collection frame can be removed according to the experiment needs are nimble, and the position of the light luminance in the adjustment test box and video acquisition camera simultaneously realizes the optimal video acquisition effect, improves experimental efficiency.

On the one hand, the utility model provides a video acquisition frame, it can carry out video acquisition to animal behavioural with different camera combinations.

The utility model discloses a video acquisition frame includes: base, montant, first scale, horizontal pole, camera fixing base, second scale, bulb and/or fluorescent tube. The video collecting frame can move or adjust the position of actual placement according to the requirement of collecting videos, so that the optimal video collecting effect is obtained.

The bottom end of the vertical rod is connected to the base, and the height of the vertical rod can be adjusted;

the vertical rod is provided with a first scale used for marking the height;

the cross rod is connected to the vertical rod; preferably a fixed connection or a movable connection;

the camera fixing seat is movably connected to the cross rod, so that the camera fixing seat can move along the cross rod, and the position of the camera fixing seat is adjusted;

the cross bar is provided with at least one camera fixing seat;

a second scale used for marking the horizontal position of the camera fixing seat is arranged on the cross rod;

the bottom of the cross bar is provided with a bulb and/or a lamp tube for providing a light source for video acquisition.

The utility model discloses an in an embodiment, video acquisition frame includes a base, two montants, a horizontal pole and at least one camera fixing base. Preferably, the two vertical rods are respectively fixed at two ends of the base.

The utility model discloses an in an embodiment, video acquisition frame includes two bases, two montants, a horizontal pole and at least one camera fixing base. Preferably, the two vertical rods are respectively fixed on the two bases.

Preferably, both ends of the cross rod are respectively fixed or movably connected to the two vertical rods, and further preferably, both ends of the cross rod are respectively fixed at the top ends of the two vertical rods.

Preferably, the outer edge line of the cross section of the cross bar is in a regular shape or an irregular shape, and further preferably is any one of a circle, a circular ring, an I shape and an H shape. When the cross section of the cross rod is a circle or a circular ring, the camera fixing seat can rotate along the axial direction of the cross rod, so that the shooting angle and range of the camera are enlarged.

The utility model discloses an in one embodiment set up the slide rail of horizontal direction on the horizontal pole, set up simultaneously on the camera fixing base with the cooperation of slide rail protrusion or recess that uses. Through the mutual cooperation of slide rail and camera fixing base for the camera fixing base can be followed the slide rail and slided in a flexible way in the horizontal direction, and then drives the camera and remove in a flexible way in the horizontal direction.

Preferably, the second scale is used for accurately positioning the horizontal position of the camera mounted on the camera fixing seat. When carrying out animal behavioural experiment, can the displacement of accurate measurement camera through first scale and second scale to adjust the camera to the best position, obtain the best effect of experiment. When needs shoot animal action in same ethology test box, can note the numerical value of scale mark according to first scale and second scale to when experiment next time, adjust the horizontal position to needs fast, accurately with the camera.

Preferably, one end of the camera fixing seat is movably connected to the cross rod, and the other end of the camera fixing seat is connected with the camera. Further preferred camera is fixed on the lower terminal surface of camera fixing base, the camera fixing base can be followed the horizontal pole and slided on the horizontal direction to drive the camera and follow the horizontal pole and remove on the horizontal direction. The position of the camera can be correspondingly adjusted according to experiment requirements, the collected animal behavior video is clear and effective, and the accuracy and effectiveness of experiment results are guaranteed.

Preferably, the camera fixing seat can rotate along the axial direction of the cross rod.

Preferably, the camera fixing seat is of a hollow structure, and the shape of an inner edge line of the cross section of the camera fixing seat is matched with that of the cross rod, so that the camera fixing seat is sleeved on the cross rod or hung on a horizontal protrusion or a groove of the cross rod.

Preferably, the camera fixing seat is provided with a positioning hole, and the inner wall of the positioning hole is provided with an internal thread matched with the external thread of the positioning bolt. When the position of the camera fixing seat is adjusted to the position required by animal behavior experiments, the camera fixing seat is fixed on the cross rod by adopting the positioning bolt.

Preferably, the camera is detachably connected or non-detachably connected with the camera fixing seat. When the two are detachably connected, a screw connection or a snap connection is preferable, and a screw connection is further preferable. When the camera and the camera fixing base are non-detachably connected, a rivet connection or an adhesive connection is preferred, and an adhesive connection is further preferred.

Preferably, the vertical rod is a sleeve assembly, and further preferably, the vertical rod is composed of at least two sleeves, and the number of the sleeves is determined according to the height of the vertical rod and the stability of the vertical rod in practical application. The sleeves are connected through a connecting sleeve or a limiting mechanism, the height of the vertical rod is adjusted through the connecting sleeve or the limiting mechanism, and the connecting sleeve is further preferably adopted for connection.

Preferably, the limiting mechanism on the vertical rod consists of a clamping groove and a limiting block, or consists of a screw rod, a nut and threaded holes vertically arranged on the inner sleeve and the outer sleeve.

Preferably, the sleeve assembly constituting the vertical rod may also be a hydraulic lifting sleeve.

The utility model discloses an among the embodiment, set up first scale on the montant to can accurate sign the distance that the montant goes up and down, adjust the height of montant, further adjust the height of camera, the better shooting requirement that satisfies animal behavioural experiment. When needs shoot the animal action in same behaviourology test box, can note the numerical value of scale mark according to first scale to when next experiment, adjust the height to needs fast, accurately with video acquisition frame.

In an embodiment of the present invention, in order to satisfy the requirements for different light intensities in animal behavior observation, the bottom of the cross bar is provided with bulbs and/or tubes for illumination, preferably, the bulbs or tubes are arranged along the cross bar at equal horizontal intervals. The power of the bulb or lamp is selected according to the paradigm of actual animal behavior and the shape of the test chamber.

Preferably, the brightness of the lamp bulb or the lamp tube can be correspondingly adjusted according to the requirement of animal behavior video acquisition, and the brightness adjusting knob is arranged on the vertical rod, so that the intensity of light rays in the test box can be conveniently controlled, and the optimal lighting condition is provided for animal behavior experiments.

In another embodiment of the present invention, the vertical rod is detachably connected or non-detachably connected to the base. When the two are detachably connected, any one of a threaded connection, a key connection, and a pin connection may be used, and a threaded connection is more preferable. When the base and the vertical rod are non-detachably connected, rivets or welding, preferably welding, can be used.

Preferably, the base is used for supporting the video acquisition frame, and further preferably, the bottom of the base is provided with a universal wheel with a locking function, so that the video acquisition frame can be flexibly moved, and the position of the video acquisition frame can be fixed at any time according to needs.

More preferably, the base is detachably or non-detachably connected with the universal wheel. When the two are detachably connected, any one of a threaded connection, a key connection, and a pin connection may be used, and a threaded connection is more preferable. When the base and the universal wheel are non-detachably connected, any one of a rivet connection, an adhesive connection, and a welding may be used, and a welding is further preferable.

The utility model discloses an in another embodiment, can also set up the crossbeam of horizontal direction on the montant, set up parallel horizontal pole on the crossbeam, hang the camera fixing base on two adjacent horizontal poles to make two horizontal poles as camera fixing base horizontal migration's slide rail.

On the other hand, the utility model also provides a video acquisition device, it comprises foretell video acquisition frame and camera.

Preferably, the camera is any one of cameras, and more preferably, the camera is an infrared camera.

The utility model has the advantages that:

1. the utility model discloses a montant among the video acquisition frame has adopted the subassembly of liftable formula to set up first scale on the montant, thereby can adjust the height of horizontal pole accurately, in a flexible way, and then the height of adjustment camera, for animal behavior experiment obtains accurate video or picture data and has established good technical basis.

2. The utility model discloses a set up the second scale on the horizontal pole in the video acquisition frame, set up the slide rail of horizontal direction simultaneously on the horizontal pole to can be accurate, adjust the horizontal position of camera in a flexible way, establish good technical basis for animal behavior experiment obtains accurate video or picture data.

Three, the utility model discloses a set up the lighting bulb or the fluorescent tube of equal horizontal interval on the horizontal pole in the video acquisition frame, set up adjustting of the lighteness's knob on the montant simultaneously, can adjust the light intensity in the test box of different norms according to animal behavior experiment needs to establish solid technical basis for obtaining accurate experimental data.

Drawings

Fig. 1 is a schematic structural diagram of a video acquisition rack of the present invention;

fig. 2 is a bottom view of the cross bar of the present invention;

fig. 3 is a left side view of the cross bar of the present invention (without the camera fixing base installed);

fig. 4 is a left side view of the cross bar of the present invention (mounting the camera fixing seat);

fig. 5 is a bottom surface of the camera fixing seat of the present invention;

FIG. 6 is a diagram of the effect of video capture in a case model of a mine, where a is a bright field condition (100 lux), b is an infrared condition (0 lux), and c is a red light condition;

FIG. 7 is a diagram of video capture effect under the elevated plus maze pattern, in which a is a bright field condition (100 lux), b is an infrared condition (0 lux), and c is a red light condition;

FIG. 8 is a diagram of the video capture effect under the light and dark box mode, in which a is a bright field condition (100 lux), b is an infrared condition (0 lux), and c is a red light condition;

the components in the above figures are labeled as follows: the device comprises a camera fixing seat 1, a second scale 2, a cross rod 3, a lighting lamp 4, a camera 5, a first scale 6, a vertical rod height adjusting knob 7, a vertical rod 8, a base 9, a universal wheel 10, a positioning bolt 11 and a screw hole 12.

Detailed Description

The technical solution of the present invention will be further described with reference to the accompanying drawings, and the advantages and features of the present invention will become more apparent as the description proceeds. It should be understood that the embodiments are illustrative only and are not limiting upon the scope of the invention.

It should be noted that the terms "lateral," "vertical," "lower," "top," "bottom," "side," and the like in the claims, the specification of the present application refer to an orientation or positional relationship based on that shown in the drawings, and it is not necessarily to be understood that the referenced device or component must have a particular orientation, be constructed or operated in a particular orientation. In addition, "first" and "second" in this application are used only for describing similar objects, and are not necessarily to be understood as a specific order or sequence.

Fig. 1 shows one embodiment of a video acquisition rack, which video acquisition rack and camera 5 can constitute an animal behavioural video acquisition device. Video acquisition frame includes base 9, montant 8, first scale 6, horizontal pole 3, second scale 2, camera fixing base 1 and bulb 4. Base 9 is used for supporting whole video acquisition frame, and fixed connection montant 8 on the base 9, the both ends fixed connection of horizontal pole 3 are on montant 8, and the upper end swing joint of camera fixing base 1 is on horizontal pole 3, and camera 5 is connected to the lower extreme of camera fixing base 1. The camera 5 can slide horizontally along the cross rod 3, so that the horizontal position of the camera is adjusted, animal behaviors are shot at the best visual angle, and the best experimental technical data are provided for animal behavior experiments.

As shown in fig. 1, a universal wheel 10 with a locking function is disposed on a lower end surface of the base 9, the base 9 can be flexibly moved by the universal wheel 10, and the position of the video acquisition frame can be fixed according to actual needs. The castor 10 is preferably screwed to the base 9. The stem 8 in fig. 1 is of a sleeve assembly construction, the stem 8 preferably consisting of three sleeves. Connect through the adapter sleeve between the sleeve pipe, preferably through threaded connection, set up the external screw thread on inside sheathed tube lower extreme surface, set up the internal thread that matches with inside sheathed tube external screw thread on outside sheathed tube upper end internal surface.

In an embodiment of the present invention, the threaded hole is formed in the side wall of the sleeve of the vertical rod 8, and the relative position between the inner sleeve and the outer sleeve is fixed by the vertical rod height adjusting knob 7 having the screw rod. In fig. 1, the vertical rod 8 is provided with the first scale 6, and the height of the vertical rod 8 can be accurately adjusted by adjusting the distance between the sleeve where the first scale 6 is located and the adjacent sleeve on the lower part, and reading the scale of the first scale 6. When needs are under same paradigm, when studying the animal action in the same test box, can take notes the scale interval that first scale 6 stretches out, can adjust the height of montant fast, accurately when experiment next time to the height of video acquisition frame is once only adjusted well. For example, the height of the two lower sleeves of the vertical rod 8 in fig. 1 is preferably 80cm, the height of the upper sleeve is preferably more than 120cm, and the height of the vertical rod 8 can be adjusted to 200cm optimally by adjusting the distance of inserting the upper sleeve into the middle sleeve.

As shown in fig. 1, two ends of a cross rod 3 are respectively and fixedly connected to the top ends of two vertical rods 8, and a second scale 2 is arranged on the cross rod 3. Fixed connection camera fixing base 1 on the horizontal pole 3, the lower fixed surface of camera fixing base 1 connects camera 5.

The utility model discloses an in the embodiment, camera fixing base 1 can follow 3 horizontal sliding of horizontal pole, through reading camera fixing base 1 corresponding scale on second scale 2, can the position of accurate regulation camera fixing base 1 to further the position of regulation camera 5. According to the needs of animal behavioural experiments, the position of the camera 5 is adjusted to be optimal, and a technical basis is provided for shooting optimal animal behavioural videos or pictures. When needs are under same paradigm, when studying the animal action in the same test box, can take notes second scale 2 and camera fixing base 1's relative scale value, can adjust the horizontal position of camera fixing base 1 on horizontal pole 3 fast, accurately when next experiment to the position of camera 5 is once only adjusted. The quantity of camera fixing base 1 can be selected according to the length of horizontal pole 3, the size of animal action test box, the performance parameter of camera. For example, the length of the cross rod 3 in fig. 1 is preferably 180cm, the horizontal length of the camera fixing seats is 7cm, and two camera fixing seats are arranged on the cross rod 3.

As shown in fig. 2 and 3, the cross section of the cross bar 3 is H-shaped, and a lighting lamp 4 is arranged in a groove at the lower part of the cross bar 3, wherein the lighting lamp 4 can be a bulb or a lamp tube. Light 4 in fig. 2 is along the equidistant setting of horizontal pole 3, and the preferred setting of the luminance control knob of light 4 is on montant 8 to make things convenient for the technical staff to adjust the luminance of light according to the light needs in the test box.

As shown in fig. 4, the camera fixing seat 1 is a hollow structure, and the camera fixing seat 1 is sleeved on the cross rod 3. The outer fringe of horizontal pole 3 has played the effect of slide rail, can adjust the position of camera fixing base 1 through the change of camera fixing base 1 and 3 relative position of horizontal pole. The camera fixing seat 1 in fig. 4 is provided with a positioning bolt 11, the upper part of the camera fixing seat 1 is provided with a hole, and the inner side of the hole is provided with an internal thread matched with the positioning bolt 11 for use. When the position of the camera fixing seat 1 needs to be fixed, the positioning bolt 11 is screwed into the opening, and the positioning bolt 11 is clamped on the cross rod 3.

As shown in fig. 1 and 5, the camera 5 is fixed on the lower end surface of the camera fixing base 1, and preferably, a screw hole 12 is formed at the lower end of the camera fixing base 1, so that the camera 5 is fixed on the camera fixing base 1 through a bolt. After with 5 threaded connection of camera on camera fixing base 1, camera 5 can be synchronous along 3 horizontal migration of horizontal pole with camera fixing base 1 to adjustment camera 5's position.

In order to better understand the technical scheme of the utility model, provide below the utility model discloses a method of use, concrete step includes:

1) According to the experiment requirement, a proper number of ethological test boxes are placed below the video acquisition frame.

2) And inserting the corresponding camera USB interface above the test box into the USB socket of the computer, and opening the video acquisition software on the computer.

3) Loosening the positioning bolt on the camera fixing seat, adjusting the horizontal position of the camera, enabling the camera to be located right above the ethology test box, screwing the positioning bolt, and fixing the position of the camera.

4) The height adjusting knob on the vertical rod is unscrewed, the height of the vertical rod is adjusted, the behavior test box is guaranteed to have the best acquisition picture, and then the vertical rod height adjusting knob is screwed to fix the height of the vertical rod.

5) And turning on a power supply of the illuminating lamp, adjusting an illuminating lamp brightness adjusting knob on the side surface of the vertical rod, and adjusting the illumination intensity of the illuminating lamp to be optimal according to the requirement in the test box.

The technical effects of the present invention will be described below with reference to the examples.

Experimental example video acquisition experiment of animal behaviors in three paradigms

Adopt 3 paradigm of mine case, overhead cross maze, light and dark case to carry out animal behavioural video acquisition, specific process is as follows:

firstly, a spacious field box is arranged below a video acquisition frame, the height of a vertical rod is adjusted to 100cm (distance from the ground), and the vertical rod is fixed through a vertical rod height adjusting knob.

Secondly, the position of the camera above the cross bar is adjusted, the left camera and the right camera are respectively positioned at 50cm and 130cm positions on the cross bar, the cameras are positioned right above the open field box at the moment, and images are not deformed.

And thirdly, the brightness of the illuminating lamp is adjusted through a brightness adjusting knob on the vertical rod, when the lamp is rotated to the maximum, the illumination intensity in the open field box is about 100lux, and the video in the illumination state is collected. By turning off the brightness adjustment knob completely or using the red light mode, videos under different illumination states are captured, and the video capturing effect is as shown in fig. 6.

And finally, performing an elevated plus maze test and a light and shade box test according to the same experimental process as the mine box, wherein the difference is that the height of the vertical rod of the elevated plus maze test from the ground is adjusted to be 135cm, the height of the vertical rod of the light and shade box test from the ground is adjusted to be 80cm, the position of the cross rod camera and the brightness of the illuminating lamp are finely adjusted, so that the optimal acquisition effect under the two paradigms is realized, and the video acquisition effect is shown in fig. 7 and 8.

The results of fig. 6-8 show that, under different behavioral paradigms (in turn, open field test, elevated plus maze test, light and dark box test), the video acquisition frame of the present invention can obtain a good acquisition visual field; and under the illumination condition of difference, the homoenergetic obtains good collection effect, explains the utility model discloses a video acquisition frame has good universality.

It should be noted that c in fig. 6 to 8 is a video shot in a red light condition, but the color of red light is not shown in the drawings.

The above-mentioned only be the embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all utilize the equivalent structure transform of the content of the specification made of the utility model, or direct or indirect application is in other relevant technical field, and all the same reason is included in the patent protection scope of the utility model.

Claims (10)

1. A video acquisition rack, comprising: the video acquisition frame includes:

a base;

the bottom end of the vertical rod is connected to the base, and the height of the vertical rod is adjustable;

the first scale is arranged on the vertical rod and used for marking the height;

the cross rod is connected to the vertical rod;

the camera fixing seat is movably connected to the cross rod and can slide along the cross rod, and at least one camera fixing seat is arranged on the cross rod;

the second scale is arranged on the cross rod and used for marking the horizontal position of the camera fixing seat;

the lamp bulb and/or the lamp tube are arranged at the bottom of the cross rod,

the video acquisition frame can move.

2. The video acquisition rack of claim 1, wherein: the outer edge lines of the cross section of the cross rod are in a regular shape or an irregular shape.

3. The video acquisition rack of claim 1, wherein: the horizontal direction slide rail is arranged on the cross rod, and the camera fixing seat can slide along the slide rail.

4. The video acquisition rack of claim 1, wherein: the camera fixing seat can rotate along the axial direction of the cross rod.

5. The video acquisition rack of claim 1, wherein: the video acquisition frame comprises two bases and two vertical rods, and two ends of the cross rod are connected to the two vertical rods respectively.

6. The video acquisition rack according to claim 1 or 5, characterized in that: the vertical rod is a sleeve assembly, and the sleeves are connected through a connecting sleeve or a limiting mechanism.

7. The video acquisition rack of claim 1, wherein: the brightness of the bulb or the lamp tube can be adjusted.

8. The video acquisition rack of claim 7, wherein: the bulbs or the lamp tubes are arranged along the cross rod at equal horizontal intervals.

9. The video acquisition rack according to claim 1 or 5, characterized in that: the bottom of the base is provided with a universal wheel with a locking function.

10. A video acquisition device, characterized by: the video capture device comprising the video capture rack of any of claims 1-9 and a camera.

Images