TW202124189A - Environment light suppression method and vehicle - Google Patents

Abstract

An environment light suppression method and vehicle are provided. The method includes: detecting an incidence environment light through a first side of a transparent media by at least one light sensor; controlling a light projection device to project a suppression light to a second side of the transparent media according to a detecting result of the at least one light sensor, so as to suppress at least part of the environment light at the second side of the transparent media.

Description

Ambient light suppression method and vehicle

The present invention relates to a light suppression technology, and particularly relates to an ambient light suppression method and a vehicle.

Generally speaking, car driving is susceptible to disturbance of sight when encountering strong ambient light (such as sunlight or the headlight of an oncoming car). Some drivers may wear sunglasses or use visors to improve, or even coat the windshield to reduce the impact of ambient light brightness. However, as a result, the overall vision of the driver becomes darker and the field of view becomes smaller, which is not a safe solution for driving.

The invention provides a method and a vehicle for suppressing ambient light, which can effectively suppress ambient light and thereby improve driving safety.

An embodiment of the present invention provides an ambient light suppression method, which includes: detecting incident ambient light penetrating a first side of a transparent medium through at least one light sensor; and detecting according to the at least one light sensor As a result, the light projection device is controlled to project the suppressed light to the second side of the transparent medium, so that at least a part of the incident ambient light can be offset by the suppressed light on the second side of the transparent medium.

An embodiment of the present invention further provides a vehicle, which includes a transparent medium, a light projection device, at least one light sensor, and a control device. The at least one light sensor is used for detecting incident ambient light penetrating the first side of the transparent medium. The control device is coupled to the light projection device and the at least one light sensor. The control device is used for controlling the light projection device to project the inhibiting light to the second side of the transparent medium according to the detection result of the at least one light sensor, so that the inhibiting light is applied to the transparent medium by the inhibiting light The second side offsets at least a part of the incident ambient light.

Based on the above, after detecting the incident ambient light penetrating the first side of the transparent medium through the at least one light sensor disposed in the vehicle, the light inside the vehicle can be controlled according to the detection result of the at least one light sensor. The projection device projects the suppression light to the second side of the transparent medium. Thereby, at least a part of the incident ambient light can be offset by the suppressing light on the second side of the transparent medium, thereby reducing the influence of ambient light on the driving sight of the vehicle, thereby improving driving safety.

Fig. 1 is a schematic diagram of a vehicle drawn according to an embodiment of the present invention. Fig. 2 is a functional block diagram of a vehicle according to an embodiment of the present invention. 1 and 2, the vehicle 10 includes a light projection device 11, a light sensor 12, a control device 13 and a transparent medium 14. The light projection device 11 is installed inside the vehicle 10 and used for projecting light 102. The light sensor 12 can be arranged inside and/or outside the vehicle 10 and can be used to sense the light 101. The control device 13 is disposed inside the vehicle 10 and is coupled to the light projection device 11 and the light sensor 12.

The transparent medium 14 includes the windshield of the vehicle 10. For example, the transparent medium 14 may be the front windshield of the vehicle 10. However, in another embodiment, the transparent medium 14 may also include the side and/or rear windshield of the vehicle 10. In addition, the transparent medium 14 may also have other light-permeable materials, and is not limited to glass.

In one embodiment, the light sensor 12 includes light sensors 121 and 122. The light sensor 121 is installed outside the vehicle 10. The light sensor 122 is installed inside the vehicle 10. For example, the light sensor 121 can be arranged on one side (also referred to as the first side) 141 of the transparent medium 14, and the light sensor 122 can be arranged on the other side (also referred to as the second side) of the transparent medium 14 142. The first side 141 is facing the outside of the vehicle 10. The second side 142 faces the interior of the vehicle 10.

In one embodiment, the light sensor 121 can detect the light 101 irradiating the first side 141 of the transparent medium 14 outside the vehicle 10, and the light sensor 122 can detect the light passing through the transparent medium inside the vehicle 10 14 is refracted and enters the light 101 in the vehicle via the second side 142 of the transparent medium 14. It should be noted that the present invention does not limit the total number of light sensors 12 and/or the location of each light sensor 12. For example, in another embodiment, the light sensor 12 may also be provided only on the first side 141 or the second side 142 of the transparent medium 14.

The control device 13 may include a central processing unit (CPU), or other programmable general-purpose or special-purpose microprocessors, digital signal processors (DSP), programmable controllers, and special application products. Application Specific Integrated Circuits (ASIC), Programmable Logic Device (PLD) or other similar devices or a combination of these devices. The control device 13 can control the light projection device 11 and the light sensor 12. In an embodiment, the control device 13 may also control the entire or part of the on-board electronic system of the vehicle 10.

In the following embodiments, the vehicle 10 similar to a passenger car in FIG. 1 is taken as an example for description. However, it should be noted that the vehicle 10 can also refer to other types of transportation such as buses, trains, etc., as long as the vehicle 10 is installed with a transparent medium that can transmit light.

The control device 13 can detect the light 101 penetrating the first side 141 of the transparent medium 14 via the light sensor 12. In an embodiment, the light 101 is also referred to as ambient light or incident ambient light. For example, the light 101 may be sunlight, street light, headlight of an oncoming car, and/or any light that may appear when driving on the road. The light 101 can irradiate the first side 141 of the transparent medium 14 from the outside of the vehicle 10 and be refracted by the transparent medium 14 and enter the interior of the vehicle 10 via the second side 142 of the transparent medium 14. In one embodiment, if the light 101 entering the interior of the vehicle 10 is not properly offset or suppressed, the line of sight of driving in the vehicle may be easily affected by the light 101, which may affect driving safety.

In one embodiment, the control device 13 can control the light projection device 11 to project the light 102 to the second side 142 of the transparent medium 14 according to the detection result of the light sensor 12, so that the light 102 is on the second side 142 of the transparent medium 14. The side 142 cancels at least a part of the light 101. In one embodiment, the light 102 is also referred to as suppressed light. For example, the light 102 may include yellow light or light of other colors (or wavelengths). Taking FIG. 1 as an example, the light 102 can be directed toward the second side 142 of the transparent medium 14 to reduce the intensity of the light 101 entering the interior of the vehicle 10. By reducing the intensity of the light 101 entering the vehicle 10, the influence of the light 101 on the line of sight of driving in the vehicle can be effectively reduced.

In an embodiment, the control device 13 can analyze the incident angle and/or light intensity of the light 101 according to the detection result of the light sensor 12 and control the light projection device 11 to project the light 102 according to the analysis result. For example, the control device 13 can adjust the light projection angle and/or light projection intensity of the light projection device 11 according to the incident angle and/or light intensity of the light 101.

In an embodiment, the control device 13 can adjust the light projection angle of the light projection device 11 according to the measured incident angle of the light 101, so as to be on the second side of the transparent medium 14 at an appropriate position and/or via an appropriate angle. 142 cancels at least part of the light 101. In an embodiment, the detection result of the light sensor 121 provided outside the vehicle 10 may reflect the incident angle of the light 101 with respect to the transparent medium 14. Therefore, the incident angle of the light 101 can be measured by the light sensor 121. Then, the control device 13 can adjust the light projection angle of the light projection device 11 according to the detection result of the light sensor 121.

In one embodiment, the control device 13 can adjust the light projection intensity of the light projection device 11 according to the measured light intensity of the light 101, so as to use the light 102 of appropriate intensity to offset at least the second side 142 of the transparent medium 14. Part of the light 101. In one embodiment, the detection result of the light sensor 122 provided inside the vehicle 10 can reflect the light intensity of the light 101. Therefore, the light intensity of the light 101 can be measured by the light sensor 122. Then, the control device 13 can adjust the light projection intensity of the light projection device 11 according to the detection result of the light sensor 122.

FIG. 3 is a schematic diagram of suppressing light on a transparent medium to cancel at least part of ambient light according to an embodiment of the present invention. Please refer to FIGS. 1 to 3, assuming that the transparent medium 14 is the front windshield of the vehicle 10. When the light 101 enters the vehicle through the transparent medium 14, the control device 13 can control the light projection device 11 to emit the light 102 to illuminate the area 301 of the transparent medium 14. The area 301 is also referred to as a target area. In this way, the light 102 can offset at least a part of the light 101 entering the vehicle at least in the area 301.

In an embodiment, the range of the area 301 may be determined in real time by the control device 13 according to the detection result of the light sensor 12. For example, at different time points, the area 301 can be moved and/or the size of the area 301 can be enlarged or reduced according to the incident angle and/or light intensity of the light reflected by the detection result of the light sensor 12. Alternatively, in an embodiment, the area 301 may also be a fixed area.

In one embodiment, according to the detection result of the light sensor 121, the control device 13 can control the light projection device 11 to project the light 102 at a specific angle, so that the light 102 irradiated to the area 301 can effectively offset the refracted by the transparent medium 14. And the light 101 entering the car. For example, the light 102 can be maintained parallel to the light 101 entering the car, so as to effectively offset the light 101 entering the car. In addition, in an embodiment, the control device 13 may further adjust the light projection angle of the light projection device 11 according to the refractive index of the transparent medium 14 to project the light 102 more accurately.

In one embodiment, according to the detection result of the light sensor 122, the control device 13 can control the light projection device 11 to project the light 102 of a specific intensity, so that the light intensity of the light 102 projected from the inside of the car to the area 301 is substantially equal to The light intensity of the light 101 irradiated to the area 301 from outside the vehicle. In this way, in addition to effectively offsetting the light 101 in the area 301 that may cause glare for driving, the influence of the light 102 emitted from the inside of the vehicle on other vehicles outside can also be reduced.

FIG. 4 is a flowchart of a method for suppressing ambient light according to an embodiment of the present invention. 4, in step S401, at least one light sensor is used to detect incident ambient light penetrating the first side of the transparent medium. In step S402, according to the detection result of the at least one light sensor, the light projection device is controlled to project the suppressed light to the second side of the transparent medium, so that the suppressed light is applied to the transparent medium by the suppressed light. The second side offsets at least a part of the incident ambient light.

However, each step in FIG. 4 has been described in detail as above, and will not be repeated here. It is worth noting that each step in FIG. 4 can be implemented as multiple program codes or circuits, and the present invention is not limited. In addition, the method in FIG. 4 can be used in conjunction with the above exemplary embodiments, or can be used alone, and the present invention is not limited.

In summary, after detecting the incident ambient light penetrating the first side of the transparent medium through the at least one light sensor disposed in the vehicle, the interior of the vehicle can be controlled according to the detection result of the at least one light sensor The light projection device projects suppressed light to the second side of the transparent medium. Thereby, at least a part of the incident ambient light can be offset by the suppressing light on the second side of the transparent medium, thereby reducing the influence of ambient light on the driving sight of the vehicle, thereby improving driving safety.

10: Vehicle 11: Light projection device 12, 121, 122: light sensor 13: Control device 14: Transparent medium 141: first side 142: second side 101, 102: 301: area S401, S402: steps

Fig. 1 is a schematic diagram of a vehicle drawn according to an embodiment of the present invention. Fig. 2 is a functional block diagram of a vehicle according to an embodiment of the present invention. FIG. 3 is a schematic diagram of suppressing light on a transparent medium to cancel at least part of ambient light according to an embodiment of the present invention. FIG. 4 is a flowchart of a method for suppressing ambient light according to an embodiment of the present invention.

S401, S402: steps

Claims (10)

An ambient light suppression method, including: Detecting an incident ambient light penetrating a first side of a transparent medium through at least one light sensor; and According to a detection result of the at least one light sensor, a light projection device is controlled to project a suppression light to a second side of the transparent medium, so that the suppression light on the second side of the transparent medium offsets at least A part of the incident ambient light. The method for suppressing ambient light according to claim 1, wherein the at least one light sensor includes a first light sensor and a second light sensor, and the first light sensor is disposed on the The first side of the transparent medium, and the second light sensor is disposed on the second side of the transparent medium. The method for suppressing ambient light according to claim 1, wherein the detection result of the at least one light sensor reflects an incident angle of the incident ambient light, and is based on the detection of the at least one light sensor The step of controlling the light projection device to project the suppression light to the transparent medium according to the measurement result includes: A light projection angle of the light projection device is adjusted according to the incident angle. The method for suppressing ambient light according to claim 1, wherein the detection result of the at least one light sensor reflects a light intensity of the incident ambient light, and is based on the detection of the at least one light sensor The step of controlling the light projection device to project the suppression light to the transparent medium according to the measurement result includes: A light projection intensity of the light projection device is adjusted according to the light intensity. The method for suppressing ambient light as described in item 1 of the scope of patent application, wherein the transparent medium is a windshield of a vehicle. A vehicle including: A transparent medium; A light projection device; At least one light sensor for detecting an incident ambient light penetrating a first side of the transparent medium; and A control device coupled to the light projection device and the at least one light sensor, The control device is used for controlling the light projection device to project a suppression light to a second side of the transparent medium according to a detection result of the at least one light sensor, so that the suppression light is on the transparent medium by the suppression light. The second side offsets at least a part of the incident ambient light. The vehicle described in item 6 of the scope of patent application, wherein the at least one light sensor includes a first light sensor and a second light sensor, and the first light sensor is disposed on the transparent medium The first side and the second light sensor are arranged on the second side of the transparent medium. For the vehicle described in item 6 of the scope of patent application, wherein the detection result of the at least one light sensor reflects an incident angle of the incident ambient light, and the control device is based on the detection of the at least one light sensor The operation of controlling the light projection device to project the suppression light to the transparent medium as a result of the measurement includes: A light projection angle of the light projection device is adjusted according to the incident angle. For the vehicle described in item 6 of the scope of patent application, wherein the detection result of the at least one light sensor reflects a light intensity of the incident ambient light, and the control device is based on the detection of the at least one light sensor The operation of controlling the light projection device to project the suppression light to the transparent medium as a result of the measurement includes: A light projection intensity of the light projection device is adjusted according to the light intensity. The vehicle described in item 6 of the scope of patent application, wherein the transparent medium is a windshield of the vehicle.

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