Vehicle-mounted camera control device

Abstract

Provided is a vehicle-mounted camera control device which, with respect to a vehicle-mounted camera, which comprises an image capture element and captures an image of a periphery of a vehicle, controls a power transmission state to the image capture element, wherein commencement of the power transmission to the image capture element is suppressed when a near vicinity of the image capture element is at a high temperature. Specifically, when a process is commenced, first, a power transmission to an image capture element of a vehicle-mounted camera is stopped (camera power source off) (S1). Thus, at least, immediately after an ignition is switched on, the power transmission to the image capture element is not carried out. If a state in which a temperature which is measured by a temperature measurement unit which is disposed in a near vicinity of the image capture element is less than or equal to an on threshold value (S3:Y) is sustained for a time which is represented with (Ams * launch counter value) (S5:Y), the power transmission to the image capture element is commenced.

Description

technical field [0001] The present invention relates to a vehicle-mounted camera equipped with an imaging element to capture images around a vehicle, and at least a vehicle-mounted camera control device that controls the energization state of the imaging element. On-board camera controls. Background technique [0002] In recent years, there has been an increase in the number of vehicle-mounted cameras equipped with imaging elements to capture images around the vehicle. Regarding vehicles equipped with such on-vehicle cameras, various techniques have been proposed for analyzing captured images of the surroundings of the vehicle and reflecting them on the running of the vehicle. However, the imaging element included in this type of vehicle-mounted camera has a recommended temperature range for ensuring operation, and it is necessary to stop power supply to the imaging element in an abnormally high temperature region to protect the imaging element. Therefore, it has been prop...

AI Technical Summary

Problems solved by technology

[0003] However, in the technology described in Patent Document 1, the output of the temperature sensor is not referred to when the control is started, such as when the power is turned on, and the imaging element is energized even if the surrounding area of ​​the imaging element is abnormally high temperature, so various problems may occur. bad situation

For example, imaging elements such as CCD (charge-coupled device: charge-coupled device), CMOS (complementary metal-oxide semiconductor: complementary metal oxide semiconductor) image sensor are not resistant to high temperature, if power is turned on at high temperature, the imaging element itself may be damaged or When Noise Is Generated

In particular, when the vehicle-mounted camera is installed around the windshield, the temperature around the windshield tends to increase, so the problem is more pronounced.

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