Method and device for self-adjustment of locking force of dome camera

Abstract

The present invention provides a method for self-adjusting the locking force of a dome machine. The dome machine has a vector sensor. The method includes the following steps: A. Obtaining the current vibration acceleration of the dome machine sensed by the vector sensor; B. Vibration acceleration, combined with the vibration acceleration and locking torque mapping table pre-stored in the non-volatile memory to determine whether the current locking torque needs to be adjusted, if so, control the stepping motor drive unit to adjust the locking current to adjust the stepping motor The size of the locking torque, otherwise it will not be adjusted. The solution of the invention solves the out-of-step phenomenon caused by the vibration of the dome machine, and at the same time reasonably optimizes the power consumption and is environmentally friendly; prolongs the service life of the stepping motor and other components; and increases the reliability of the dome machine.

Description

technical field [0001] The invention relates to the technical field of dome cameras, in particular to a method and device for self-adjusting the locking force of a dome camera. Background technique [0002] Nowadays, dome cameras (hereinafter referred to as dome cameras) are widely used in the monitoring of large-area and moving targets in all walks of life. Dome cameras can be installed in a variety of ways, including wall-mounted, pole-mounted, corner-mounted, pole-mounted, and even dome cameras suspended on cableways. In some complex installation environments, it is extremely difficult to fix the dome camera, and it is easily affected by external stress and cause the dome camera to vibrate. When the dome camera is monitoring at a certain watch position, the pan / tilt is controlled to "half-flow lock", that is, the locking force is not very strong. When the vibration source reaches a certain intensity, the acceleration received by the dome camera is too large and exceeds ...

AI Technical Summary

Problems solved by technology

But this will bring a series of negative effects: 1. Increased power consumption: at this time, the power consumption is relatively large, which is not conducive to environmental protection

2. Affect the service life of the stepper motor: because the life of the stepper motor is closely related to the temperature rise

Excessive temperature has a serious impact on the life of the motor

3. The problem of heat dissipation is prominent: due to the increase of "full current lock" power consumption, the heat dissipation also increases. If the heat dissipation cannot be handled well at this time, it will also affect the service life of the single board components

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