# US 10,864,854 B2 · Vehicle camera device and method for setting the same

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- Number: US 10,864,854 B2
- Document ID: US10864854B2
- Status: Granted
- Kind: B2
- Application number: 16/043,471
- Filed: 2018-07-24
- Published: 2019-07-04
- Granted: 2020-12-15
- Earliest claimed: 2018-01-02
- Assignees: Getac Technology Corporation
- Applicants: Getac Technology Corporation
- Inventors: Wu-Chieh Liao
- Web page: https://patentgrep.com/patent/US10864854B2

## CPC

- H04N 23/70: Circuitry for compensating brightness variation in the scene
- B60W 10/30: including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
- B60R 2300/101: using cameras with adjustable capturing direction
- B60R 2300/103: using camera systems provided with artificial illumination device, e.g. IR light source
- B60R 2300/8093: for obstacle warning
- B60W 2420/403: Image sensing, e.g. optical camera
- B60W 2554/801: Lateral distance
- B60W 2555/20: Ambient conditions, e.g. wind or rain
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A vehicle camera device is suitable to be provided in a first vehicle. The vehicle camera device receives a distance between the first vehicle and a second vehicle, detects the environment brightness information, and generates an angle value and a power value according to the distance and the environment brightness information, so as to adjust an angle of depression and a power of an infrared illumination module according to the angle value and the power value.

## Claims

### Claim 1

A method for setting a vehicle camera device, suitable to be applied to a first vehicle, the method for setting a vehicle camera device comprising:
receiving a distance between the first vehicle and a second vehicle;
detecting environment brightness information;
generating an angle value and a power value according to the distance and the environment brightness information; and
adjusting an angle of depression and a power of an infrared illumination module according to the angle value and the power value;
wherein the step of generating the angle value and the power value according to the distance and the environment brightness information comprises:
comparing the distance with a distance threshold to obtain a distance analysis result;
comparing the environment brightness information and a brightness threshold to obtain a brightness analysis result; and
generating the angle value and the power value according to the distance analysis result and the brightness analysis result; and
wherein upon the distance being smaller than the distance threshold and/or the brightness analysis result indicating that the environment brightness information is greater than the brightness threshold, the angle value is increased and the power value is decreased.

### Claim 2 (depends on 1)

The method for setting a vehicle camera device according to claim 1, wherein the step of detecting the environment brightness information obtains the environment brightness information through a light sensor sensing the environment brightness.

### Claim 3 (depends on 1)

The method for setting a vehicle camera device according to claim 1, wherein the step of detecting the environment brightness information comprises:
capturing a scene to generate a driving-vehicle image;
performing image recognition on the driving-vehicle image to obtain an exposure value of the driving-vehicle image; and
converting the exposure value to the environment brightness information.

### Claim 4 (depends on 1)

The method for setting a vehicle camera device according to claim 1, wherein the step of detecting the environment brightness information comprises:
receiving a current time;
comparing the current time with a time threshold to obtain a time analysis result; and
obtaining the environment brightness information according to the time analysis result.

### Claim 5 (depends on 4)

The method for setting a vehicle camera device according to claim 4, wherein the time threshold comprises a first time threshold, a second time threshold and a third time threshold, and the step of obtaining the environment brightness information according to the time analysis result comprises:
selecting a first brightness level as the environment brightness information when the current time is between the first time threshold and the second time threshold;
selecting a second brightness level as the environment brightness information when the current time is between the second time threshold and the third time threshold; and
selecting a third brightness level as the environment brightness information when the current time is between the third time threshold and the first time threshold;
wherein the second brightness level is greater than the first brightness level, and the first brightness level is greater than the third brightness level.

### Claim 6 (depends on 1)

The method for setting a vehicle camera device according to claim 1, wherein upon the distance being greater than the distance threshold and/or the brightness analysis result indicating that the environment brightness information is smaller than the brightness threshold, the angle value is decreased or the power value is increased.

### Claim 7 (depends on 1)

The method for setting a vehicle camera device according to claim 1, wherein the infrared illumination module is provided with a single infrared lamp, and adjustments to the angle of depression and power of the infrared illumination module are made to this single infrared lamp.

### Claim 8

A vehicle camera device, suitable to be provided in a first vehicle, the vehicle camera device comprising:
a vehicle distance sensor, sensing a distance between the first vehicle and a second vehicle;
an environment brightness module, generating the environment brightness information;
a processing module, generating an angle value and a power value according to the distance and the environment brightness information; and
an infrared illumination module, adjusting an angle of depression and a power of an infrared lamp according to the angle value and the power value,
wherein when the distance is smaller than a distance threshold and/or the environment brightness information is greater than a brightness threshold, the angle value generated by the processing module is increased and the power value is decreased, and when the distance is greater than a distance threshold and/or the environment brightness information is smaller than a brightness threshold, the angle value generated by the processing module is decreased and the power value is increased.

### Claim 9 (depends on 8)

The vehicle camera device according to claim 8, wherein the environment brightness module is a light sensor that senses the environment brightness to obtain the environment brightness information.

### Claim 10 (depends on 8)

The vehicle camera device according to claim 8, further comprising:
a camera module, capturing a scene to generate a driving-vehicle image;
wherein the environment brightness module comprises an image analysis unit, and the image analysis unit performs image recognition on the driving-vehicle image to obtain an exposure value of the driving-vehicle image and converts the exposure value to the environment brightness information.

### Claim 11 (depends on 8)

The vehicle camera device according to claim 8, wherein when the distance is greater than a distance threshold and/or the environment brightness information is smaller than a brightness threshold, the angle value generated by the processing module is decreased or the power value is increased.

### Claim 12 (depends on 8)

The vehicle camera device according to claim 8, wherein the infrared illumination module is provided with a single infrared lamp, and adjustments to the angle of depression and power of the infrared illumination module are made to this single infrared lamp.

### Claim 13

A method for setting a vehicle camera device, suitable to be applied to a first vehicle, the method for setting a vehicle camera device comprising:
receiving a distance between the first vehicle and a second vehicle;
detecting environment brightness information;
generating an angle value and a power value according to the distance and the environment brightness information; and
adjusting an angle of depression and a power of an infrared illumination module according to the angle value and the power value;
wherein the step of generating the angle value and the power value according to the distance and the environment brightness information comprises:
comparing the distance with a distance threshold to obtain a distance analysis result;
comparing the environment brightness information and a brightness threshold to obtain a brightness analysis result; and
generating the angle value and the power value according to the distance analysis result and the brightness analysis result; and
wherein upon the distance being greater than the distance threshold and/or the brightness analysis result indicating that the environment brightness information is smaller than the brightness threshold, the angle value is decreased and the power value is increased.
