WO2016028247A1

WO2016028247A1 - Camera guiding system for crane-camera carriers

Info

Publication number: WO2016028247A1
Application number: PCT/TR2015/050075
Authority: WO
Inventors: Kadir KOYMEN
Original assignee: Kadir Koymen Film Yapimi Sinema Ekipmanlari Uretimi Ithalat Ve Ihracat Anoni̇m Şi̇rketi̇
Priority date: 2014-08-21
Filing date: 2015-08-21
Publication date: 2016-02-25

Abstract

The present invention is related to a guiding system that carries display devices such as cameras and which enables cameras to be automatically guided in crane systems of which the viewpoint can be guided. The camera guiding system of the invention aims to develop a guiding system that already includes a target system that controls the movement of the camera on 2 axes or a guiding system that can be later mounted on attachable crane mechanisms. Additionally, a guiding system that follows the crane movements to enable the target to continuously maintain the camera in its initial position or any predefined position will also be developed within the scope of the invention.

Description

CAMERA GUIDING SYSTEM FOR CRANE-CAMERA CARRIERS

Technical Field

The present invention is related to a guiding system that carries display devices such as cameras and which enables cameras to be automatically guided in crane systems of which the viewpoint can be guided.

Prior Art

Today, equipment used in video recordings and known under the Jimmy Jib brand is widely used in the cinema and TV sectors. This equipment enable the cameraman to perform smooth recording in quite a large area by means of the weight of the camera supported on the long arm being supported by weights placed on the short arm.

The change on the frame or viewpoint with the move of camera being guided by the lifting arm is inevitable. Various motors are used to move the display device itself in 2 axes, in order to guide the frame in these different frames. The invention described in Chinese patent number CN103196014A provides one such example.

Additionally, designs which mechanically enable the camera to constantly be parallel to the ground plane have also been developed and another Chinese patent application number CN202794809U can be shown as one such example.

Moreover, another camera crane system used presently has been described in European Patent application number EP2226677A1.

Brief Description of the Invention

The camera guiding system of the invention aims to develop a guiding system that already includes a target system that controls the movement of the camera on 2 axes or a guiding system that can be later mounted on attachable crane mechanisms. Additionally, a guiding system that follows the crane movements to enable the target to continuously maintain the camera in its initial position or any predefined position will also be developed within the scope of the invention.

Detailed Description of the Invention

The guiding system provided to achieve the objectives of the invention is shown in the attached figures which are specified below:

Figure 1 - Front schematic view of the vertically positioned linear movement joint with guiding arm in closed state.

Figure 2 - Front schematic view of the vertically positioned linear movement joint with guiding arm in open state. Figure 3 - Side schematic view of the section of the body of the vertically positioned linear movement joint with guiding arm.

Figure 4 - Plan schematic view of the vertically positioned linear movement joint with guiding arm in closed state.

Figure 5 - Plan schematic view of the vertically positioned linear movement joint with guiding arm in open state.

The parts observed in the figures are numbered as follows:

1. Guiding system

2. Base

3. Tripod 4. Primary arm

5. Secondary arm

6. Support

7. Weight extension

8. Weight 9. Camera

10. 2 axis guide

11. Movement axis

12. Gear group 13. Movement sensor

The guiding system (1) of the present invention is comprised mainly of a rectangular shaped primary arm (4) mounted on a base (2) which can be placed on a tripod (3), a rectangular shaped secondary arm (5) mounted on the primary arm (4), a plate shaped support (6) mounted on the secondary arm (5), a movement sensor (13) and a 2 axis guide (10) determining the movement of the primary arm (4) on the support (6). In accordance with the objectives of the invention, the guiding system (1) tracks the movement of the support (6); the camera (9) is connected to; in order to determine the position of the camera (9).

The support (6), by moving linearly along the movement axis (11), enables the camera (9) to be transported parallel to the ground or along a line with any angle. During this carrying, as the primary arm (4) is moved angularly via the drive of a gear group (12), movement is performed without disrupting this linearity by means of the connection between the secondary arm (5) and the primary arm (4).

By means of the movement of the gear group (12) with carries out the movement of the primary arm (4) which in turn moves the secondary arm (5) being determined by means of the movement sensor (13), it also becomes possible to determine the position of the support (6) and thus the camera (9). During the determination of this position, the movement sensor (13) will carry out measurements corresponding to different displacement values at different angular movements depending on the position of the gear group (12) and thus the primary arm (4). In cases where the primary arm (4) is close to the vertical linearity, 1 unit angular movement carried out by the gear group (12) will result in a linear displacement less than the 1 unit angular movement the primary arm (4) will perform when it is close to the position parallel to the ground. As the linear movement displacement corresponding to this angular movement will increase in proportion with the sine curve, it can be calculated mathematically by a control module in the guiding system (1). As a result of the calculations performed by the movement sensor (13) of the values corresponding to angular movements of the primary arm (4), the conversion to the value corresponding to the distance of the support (6) from the base (2) will again be carried out via the control module to enable the position of the camera (9) to be determined.

Determination of the position of the camera (9) enables the camera (9) to track any object focused. By means of the camera being able to track any object in focus during the position of the camera (9) continuously changing along a line, the shooting of various scenes identified by the director is facilitated. For this process involving tracking an object, it is necessary that the position of the camera (9) in relation to the base (2), as well as the position of the object itself to be known. In order for the position of the object to be determined in relation to the base (2), feedback from the 2 axis guide (10) that can change the viewpoint of the camera (9) can be received by the control module. The 2 axis guide (10) controls the frame by changing the viewpoint of the camera (9) in terms of pan and tilt. It is required for a feedback related to these angles to be received or for the changed position to be tracked and known by taking a reference point from any reset point. By means of the viewpoint value of the camera (9) and the position information of the camera (9) the spatial position of a ray passing through the object and the camera in relation to the base (2) will be determined by the control module.

At this stage, in order to determine the position of the object, it is necessary for the distance between the object and the camera (9) to be known. By means of the distance value, the position of the camera (9) in relation to the base (2) and subsequently the exact position of the base (2) to the object are determined via the feedback of the 2 axis guide (10) and the distance value added to the viewpoint value of the camera (9). With the exact position of the object having been determined, the change in the position of the camera (9) is continuously identified by means of the movement sensor (13) in order to identify any object tracked during the movement of the camera (9) along the movement axis (11) and this enables the frame to be guided via the 2 axis guide (10).

In order to ensure that the gear group (12) is not forced as a result of being under the load of solely the primary arm (4), a weight (8) is connected to the gear group (12) through the weight extension (7) which is shorter than the primary arm (4) to distribute the load mutually and equally on the gear group (12). In order to increase moment effect of the weight (8), a weight extension (7) component will be operated in the same manner as the primary arm (4) to provide for its position to be changed with the position of the camera (9) moving away from the base (2) so that it can be ensured that the weight (8) is shifted.

Claims

A guiding system (1) that carries display devices such as cameras and which enables cameras to be automatically guided in crane systems of which the viewpoint can be guided, consisting of; a rectangular shaped primary arm (4) mounted on a base (2) which can be placed on a tripod (3), a rectangular shaped secondary arm (5) mounted on the primary arm (4), a plate shaped support (6) mounted on the secondary arm (5), and a movement sensor (13) and a 2 axis guide (10) determining the movement of the primary arm (4) on the support (6), characterized in that it comprises a control module that determines the movements of the support (6) that the camera (9) is connected to, by identifying the angular position of the primary arm (4) in order to determine the position of the camera (9) and determines the linear movement displacement corresponding to this angular movement in proportion with the sine curve.

A guiding system (1) characterized in that it comprises a control module that determines the position of the object in relation to the base (2) by means of the position of the camera (9) being determined and the viewpoint va lue of the camera (9) being determined via the 2 axis guide (10) and the distance of the object, the camera (9) shoots to, with respect to the camera (9) being determined.