Camera capable of being normally started at low temperature and realization method thereof

Abstract

The invention discloses a camera capable of being normally started at a low temperature and a realization method thereof. The camera comprises: a motor; a temperature sensor, which is used to acquire a current motor working environment temperature; a motor control module, which is used to control starting of the motor according to different PPS numbers; a constant table, in which storage temperatures are corresponding to the PPS numbers; a microcontroller, which is used to acquire the two PPS numbers which are close to a current temperature in the constant table according to the current temperature and then calculates the PPS number that the motor needs at the current temperature according to the two acquired PPS numbers. The motor is connected with the motor control module. The motor control module is connected with the microcontroller. The temperature sensor is connected with the microcontroller. And the microcontroller is connected with the constant table. By using the invention, the motor can be started at the low temperature and situations of lost steps can be avoided. A working temperature of the camera can be reduced to a minus 40 DEG C.

Description

technical field [0001] The invention relates to a camera, in particular to a camera that can be normally started in a low-temperature environment and its implementation method. Background technique [0002] Cameras used for security monitoring are often used in various complex temperature and humidity environments, and at low temperatures (below -20°C), due to the influence of the temperature characteristics of electronic components, the driving capabilities of the triodes used for motor drive will be reduced. At present, cameras on the market basically use manual fixed-speed drive motors in various environments. This may cause some motors to fail to start in low-temperature environments, and even if they can be started, the motors will lose steps and cause focus blur. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The purpose of the present invention is to provide a camera that can normally start in a low te...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a camera that can normally start in a low temperature environment and its implementation method, aiming to solve the problems of the existing cameras used for security monitoring, the motor does not start or the motor loses steps in the low temperature environment question

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