Holder and control method thereof

Abstract

The invention discloses a holder and a control method thereof. The holder comprises: a controller, a motor, a motor drive module, a brake drive module, a brake coil and a brake structure; the controller is connected with the motor drive module and the brake drive module respectively; the controller is used for controlling the brake coil and the motor to be in a power-off state when the holder remains stationary for more than preset time, so that the brake structure brakes the motor; when the holder is unlocked, the controller controls the motor and the brake coil to be in a power-on state, sothat the brake structure is separated from the motor and the holder is unlocked. Therefore, after the controller applies a corresponding electrical signal to the brake coil to unlock the holder, the holder can be controlled accurately. In addition, the holder does not adopt a worm gear structure or a reduction motor, so high-speed rotation of the holder is not affected, and the problems of limit to the operation of the holder and low precision of a preset point are avoided.

Description

Technical field [0001] The invention relates to the field of safety control, in particular to a pan-tilt and its control method. Background technique [0002] The self-locking pan / tilt camera, as the name suggests, refers to when the pan / tilt is stationary, the pan / tilt is locked by a mechanical structure, without the need to apply current to the motor through the motor drive to maintain the pan / tilt state, thereby reducing power consumption. At present, the self-locking pan / tilt mainly realizes the self-locking function through two forms of worm gear and geared motor. [0003] The self-locking pan / tilt based on the worm gear uses the principle that when the lead angle of the worm is smaller than the equivalent friction angle between the worm gear teeth, the mechanism is self-locking, that is, the worm can only be driven by the worm and the worm cannot be driven by the worm. The stage is reversed and self-locking. However, the self-locking pan / tilt based on the worm gear has low ...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a pan / tilt and its control method, which are used to solve the problems of limited pan / tilt operation and insufficient precision of preset points in the prior art

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