Optical division method and related devices

Abstract

The present application provides a light division method. The method can be applied to a vehicle. The vehicle includes at least two light emitting devices that provide light energy by using a centralized light source, and each of the light emitting devices is connected to the centralized light source by using a light guide. A control device in the vehicle can obtain a light emission command, where the light emission command carries information about a first light power required by a target light emitting device of the at least two light emitting devices, or information about a first light power required by each of a plurality of target light emitting devices, and allocate light emitted by the centralized light source based on the information about the first light power, so that each target light emitting device obtains its corresponding light by using the light guide. In this way, the light source is appropriately used and the utilization rate of the light source is improved.

Description

Technical Field

[0001] This application relates to the field of optical splitting technology, and specifically to an optical splitting method and related devices.

Background Art

[0002] Light sources are widely used in various devices such as display devices and lighting fixtures. Currently, each device usually has an independent light source. In complex hardware systems such as vehicles, there are usually a large number of devices that need to emit light. As a result, the light sources in these hardware systems occupy a large space, and the utilization rate of the light sources is not high.

Summary of the Invention

[0003] This application provides an optical splitting method for appropriately using a light source and improving the utilization rate of the light source. This application further provides corresponding devices, computer devices, computer-readable storage media, computer program products, etc.

[0004] According to a first aspect, the present application provides a method for optical splitting applicable to a control device located in a vehicle. The vehicle further includes at least two device to emit light that supply optical energy using a centralized light, each of which is connected to the centralized light using an optical waveguide. The method includes the steps of: obtaining an emission command, the emission command carrying information relating to a first optical power required by one of the at least two device to emit light, or information relating to a first optical power required by each of a plurality of target device to emit light; and assigning light to be emitted by the centralized light based on the information relating to the first optical power, so that each target device to emit light obtains its respective corresponding light using an optical waveguide.

[0005] In a first embodiment, the optical splitting method may be applied to complex hardware systems such as driving tools. Driving tools may be vehicles, ships, airplanes, railway trains, etc. The optical emission device may be a display device and / or a lighting fixture. A control device may control the on / off state of one or more components, such as optical splitting devices, optical coupling devices, and optical switches, along the optical transmission path from a concentrated light source to a target optical emission device, and adjust parameters such as the splitting ratio to allocate the light emitted by the concentrated light source.

[0006] From the above, it can be seen that in the first embodiment, the concentrated light source supplies light energy to one or more of at least two light-emitting devices in the light-splitting system based on requirements, thereby reducing the amount of light source in the vehicle or other hardware system, lowering the spatial and heat dissipation requirements of the light source, and improving the utilization rate of the light source used. In addition, the light emitted by the concentrated light source can be allocated based on the first light power, thereby allowing for flexible allocation of the light emitted by the concentrated light source based on actual scenario requirements, and ensuring that the light transmitted to the light-emitting devices meets the light emission requirements of the light-emitting devices.

[0007] In a possible implementation of the first embodiment, the vehicle further includes a first optical splitting device. The aforementioned step of allocating light emitted by a centrifugal light source based on information about a first optical power so that each target optical emission device obtains its respective corresponding light by using an optical waveguide includes the step of determining the splitting ratio of the first optical splitting devices based on information about the first optical power so that each target optical emission device obtains its respective corresponding light by using an optical waveguide.

[0008] In this possible implementation, the first optical splitting device may consist of one optical splitter or may include multiple optical splitters. In the optical splitters included in the first optical splitting device, at least one optical splitter has an adjustable splitting ratio. The splitting ratio of the first optical splitting device corresponding to the optical output device is determined based on the first optical power, and the optical energy from the concentrated light source can be flexibly allocated by using the first optical splitting device based on actual scenario requirements, such that the target optical energy transmitted to the optical output device can satisfy the optical output requirements of the optical output device.

[0009] In a possible implementation of the first embodiment, the centrifugal light source is configured to emit red, green, and blue light, which are transmitted separately when emitted from the centrifugal light source, and the emission command further carries the color information of the light required by each target light-emitting device. The aforementioned step of determining the division ratio of the first optical splitting device based on information about the first optical power includes the step of determining the division ratio of the first optical splitting device for red, green, and blue light, respectively, based on the first optical power and color information.

[0010] In this possible implementation, the splitting ratio of the first optical splitting device for red, green, and blue light may be the splitting ratio of the first optical splitting device for the red, green, and blue light received by each target light-emitting device. The first optical splitting device may be a single optical splitter, the output port of which corresponds to the red, green, or blue light of the light-emitting device. Alternatively, the first optical splitting device may include multiple optical splitters, which may have a one-to-one correspondence with multiple light-emitting devices.

[0011] In this possible implementation, the first optical splitting device can be used not only to control the method of allocating light emitted by a condensing light source to a target optical emitter, but also to control the color of light received by the target optical emitter by adjusting the splitting ratios corresponding to red, green, and blue light, respectively. This significantly improves control efficiency, reduces the use of wavelength converters, and lowers hardware costs.

[0012] In a possible implementation of the first embodiment, each light-emitting device is connected to a second optical splitting device, which in turn is connected to an optical power meter. The optical splitting method further includes the steps of obtaining a third optical power detected by an optical power meter corresponding to a target light-emitting device when the target light-emitting device emits light, determining the splitting ratio of the first optical splitting device based on the third optical power, and / or determining the optical power of a condensed light source.

[0013] In this possible implementation, the division ratio of the second optical splitting device is a fixed value. Thus, the ratio of the power of the light received by the target optical emitter corresponding to any second optical splitting device to the third optical power detected by the optical power meter corresponding to the second optical splitting device is a fixed value. Therefore, in this possible implementation, the third optical power detected by the optical power meter corresponding to the target optical emitter can be used to determine the value of the optical energy of the light received by the corresponding target optical emitter, and to determine whether the value of the optical energy of the light received by the corresponding target optical emitter satisfies the requirements of the corresponding target optical emitter.

[0014] Typically, the second optical splitting device allocates more optical energy to the corresponding target optical emitter and less optical energy to the corresponding optical power meter. For example, the second splitting ratio of the second optical splitting device corresponding to the target optical emitter is 1:99. In this way, most of the light can be transmitted to the corresponding target optical emitter for emission, and only a small portion of the light can be transmitted to the corresponding optical power meter for detection, thereby avoiding the waste of optical energy.

[0015] In a possible implementation of the first embodiment, the target optical output device includes a first optical output device and a second optical output device, wherein the ratio of the maximum optical power corresponding to the first optical output device to the maximum optical power corresponding to the second optical output device is less than a preset ratio threshold. The optical splitting method further includes the step of updating the splitting ratio of the first optical splitting device based on the updated first optical power of the first optical output device if it is detected that the first optical power of the first optical output device has been updated.

[0016] In this possible implementation, the preset ratio threshold is typically small. For example, the preset ratio threshold could be 0.2, 0.1, or 0.05. In this way, the ratio of the maximum optical power corresponding to the first optical output device to the maximum optical power corresponding to the second optical output device is less than the preset ratio threshold, indicating that the maximum optical power corresponding to the first optical output device is clearly smaller than the maximum optical power corresponding to the second optical output device.

[0017] In this possible implementation, the division ratio of the first optical splitting device can be updated based on the first optical power of the second optical emitter and the updated first optical power of the first optical emitter in order to reallocate the light acquired by the first and second optical emitters, respectively. In this case, the sum of the light acquired by the first and second optical emitters, respectively, may remain unchanged before and after the reallocation. Thus, the optical power of the centrifugal source may also remain unchanged, and only the division ratio of the first optical splitting device needs to be updated. Although the first optical power required by the target optical emitter changes, in the actual control process, it is found that only the division ratio of the first optical splitting device needs to be adjusted, and there is no need to adjust the optical power of the centrifugal source. Therefore, the control procedure is optimized, frequent adjustments of the optical power of the centrifugal source are avoided, and the service life of the centrifugal source is extended.

[0018] In a possible implementation of the first embodiment, the optical splitting method further includes the steps of determining the optical power of a centrifugal source based on a first optical power, wherein the optical power of the centrifugal source is greater than or equal to the sum of the first optical powers corresponding to each target light-emitting device, and controlling the centrifugal source to emit light based on the optical power of the centrifugal source.

[0019] In this possible implementation, the optical power of the concentrated light source can be appropriately determined based on the first optical power, thereby avoiding resource waste while meeting the requirements of the target light-emitting device.

[0020] According to a second aspect, the present application provides an optical splitting device. The device may be applied to a control device located in a vehicle. The vehicle further includes at least two optical emitting devices that supply optical energy by using a concentrated light source, each of which is connected to the concentrated light source by using an optical waveguide. The optical splitting device has a function for implementing the method according to the first aspect or any possible implementation form of the first aspect. The function may be implemented by hardware or by hardware running corresponding software. The hardware or software includes one or more modules corresponding to the aforementioned function, for example, an acquisition module and an allocation module.

[0021] According to a third aspect, the present application provides a control device. The control device includes at least one processor, memory, a communication interface, and computer executable instructions stored in the memory and executable on the processor. When the computer executable instructions are executed by the processor, the processor performs a method according to the first aspect or any possible implementation of the first aspect.

[0022] According to a fourth aspect, the present application provides a computer-readable storage medium for storing one or more computer-executable instructions. When a computer-executable instruction is executed by a processor, the processor performs a method according to the first aspect or any possible implementation of the first aspect.

[0023] According to a fifth aspect, the present application provides a computer program product that stores one or more computer executable instructions. When a computer executable instruction is executed by a processor, the processor performs a method according to the first aspect or any possible implementation of the first aspect.

[0024] According to a sixth aspect, the present application provides a chip system. The chip system includes a processor configured to support a control device when implementing the functions of the first aspect or any possible implementation of the first aspect. In a possible design, the chip system may further include memory. The memory is configured to store program instructions and data required by the control device. The chip system may include a chip, or it may include a chip and another discrete device.

[0025] According to a seventh aspect, the present application provides an optical splitting system, the optical splitting system including a control device, the control device being configured to implement a method according to the first aspect or any possible implementation of the first aspect.

[0026] In a possible implementation of the seventh embodiment, the optical splitting system further includes at least two optical emitting devices, each of which is connected to a concentrated light source by using an optical waveguide.

[0027] In a possible implementation of the seventh embodiment, an optical waveguide end structure is located at one end of an optical waveguide on a corresponding target optical emission device, and the optical waveguide end structure corresponds to the target optical type of the corresponding target optical emission device.

[0028] In this possible implementation, the target light type of any target light-emitting device refers to the light type required by the target light-emitting device. The target light type can be described by using at least one of the form of the target light type (such as surface light type, line light type, or point light type), shape (such as rectangle, circle, triangle, sector, or trapezoid), size of the target light type (such as width, length, or diameter), light intensity distribution within the target light type, etc. The specific form of the optical waveguide end structure can be flexibly adjusted based on the requirements of the corresponding light-emitting device, so that different light types can be conveniently and flexibly generated in different light-emitting devices as needed. In this way, for the requirements of different light types of the light-emitting device, there is no need to configure various different light shaping devices within the light-emitting device, such as a light guide plate, a light homogenizing plate, and another light type conversion device, thereby greatly reducing the hardware cost.

[0029] In a possible implementation of the seventh aspect, in the optical waveguide end structure corresponding to at least one target light-emitting device, the cladding on the side surface of the optical waveguide is cut to form a light transmission region, so that the optical waveguide end structure emits light from the side surface based on the corresponding target light type.

[0030] In this possible implementation, in order to meet the requirements of the target light type in some application scenarios, the cladding on the side surface of the optical fiber in the optical fiber end structure is cut in advance, so that the light in the optical core within the optical fiber end structure can be emitted from the light transmission region on the side surface of the optical fiber. The light transmission region formed by cutting the cladding may be covered with a transparent material. The transparent material can be for protecting the optical core exposed by appropriately cutting the cladding. The area and shape of the light transmission region can be flexibly determined based on the target light type, so that different light types can be conveniently and flexibly generated in different light-emitting devices as needed.

[0031] In a possible implementation of the seventh embodiment, the target light emitting device includes a vehicle display panel, the target light type corresponding to the display panel is a surface light type, and in the optical waveguide end structure corresponding to the display panel, the optical waveguide is bent based on the surface light type and positioned in the target light emitting region to function as a backlight source for the display panel.

[0032] In this possible implementation, the optical waveguide end structures can be arranged in the target light-emitting region in a configuration where they are bent into multiple optical waveguide sections and arranged sequentially in a bending sequence, or in a configuration where they are bent into a multi-layered circular or rectangular frame, thereby forming a surface light type.

[0033] In a possible implementation of the seventh embodiment, in an optical waveguide end structure corresponding to at least one target optical emission device, the cross-sectional shape of the optical core corresponds to the target optical type of the corresponding target optical emission device.

[0034] In this possible implementation, the surface perpendicular to the central axis of the optical core is the cross-section of the optical core. The shape of the optical core's cross-section corresponds to the target optical type of the corresponding target optical emission device if the shape of the optical core's cross-section is the same as or similar to the target optical type of the corresponding target optical emission device, thereby allowing the corresponding target optical type to be formed based on the shape of the optical core's cross-section when light is emitted using one end of the optical core on the corresponding target optical emission device.

[0035] In a possible implementation of the seventh embodiment, the target light emitting device includes a projection device on a vehicle, the target light type corresponding to the projection device is a rectangular light type, and the cross-sectional shape of the optical core in the optical waveguide end structure corresponding to the projection device is rectangular.

[0036] In this possible implementation, the projection device may be a head-up display device in a vehicle, a device configured to perform projection displays for passengers in the passenger space, and a device configured to project driving instruction information onto the vehicle's travel path. Typically, a point-type projection device is used, and a specific form of the point-type projection device is a rectangular-type projection. Thus, in this possible implementation, the cross-sectional shape of the optical core in the optical waveguide end structure corresponding to the projection device is rectangular, so that when light is transmitted to the end portion of the optical core in the optical waveguide end structure corresponding to the projection device, the light is emitted by using the end portion of the optical core, forming a rectangular-type projection.

[0037] In a possible implementation of the seventh embodiment, the target light emitting device includes a vehicle headlamp, and in an optical waveguide end structure corresponding to the headlamp, the optical core of the optical waveguide includes a first optical core and a second optical core, the refractive index of the first optical core and the refractive index of the second optical core correspond to the light intensity distribution in the target light type of the headlamp.

[0038] In this possible implementation, the light intensity at the top of the headlamp's target light type is strong, and the light intensity at the bottom is weak. Based on the requirements of the headlamp's target light type, the first optical core is located above the second optical core, and the refractive index of the first optical core is greater than that of the second optical core. Thus, since the light intensity of the light emitted by the first optical core is greater than that of the light intensity of the light emitted by the second optical core, the optical waveguide end structure of the headlamp can emit a light type in which the light intensity gradually decreases from top to bottom. The light type may be the same as or similar to the headlamp's target light type, thereby reducing the use of several photoforming devices in the headlamp.

[0039] In a possible implementation of the seventh embodiment, the light-emitting device includes a display device and / or lighting fixture within the vehicle.

[0040] In this possible implementation, the display device may include a display panel and / or a projection device. A display panel is a device that provides a planar or curved display by using a display screen, such as a touchscreen or non-touchscreen. For example, a display panel may include at least one of the touchscreens of an in-vehicle computer and various meter display panels. A projection device is a device that can project images or videos onto physical objects such as curtains, walls, or roads, or onto inanimate objects such as air. For example, a projection device may include at least one of the following: a head-up display device in a vehicle, a device configured to perform projected displays for passengers in the passenger space, and a device configured to project driving instruction information onto the vehicle's travel path. Lighting fixtures may be lighting fixtures or information display fixtures. For example, lighting fixtures may be at least one of the following: vehicle lights, in-vehicle lighting devices, indicators to assist the driver when driving in a vehicle, or indicators to prompt passengers.

[0041] According to the eighth aspect, the present application provides a vehicle, which includes an optical splitting system in the seventh aspect or any possible implementation of the seventh aspect.

[0042] For technical effects resulting from the second through sixth embodiments or any possible implementations of the second through sixth embodiments, please refer to the technical effects resulting from the first embodiment or any possible implementations of the first embodiment. For technical effects resulting from the eighth embodiment, please refer to the technical effects resulting from the seventh embodiment or any possible implementations of the seventh embodiment. Further details will not be explained here. [Brief explanation of the drawing]

[0043] [Figure 1] This is an exemplary functional block diagram of a vehicle according to one embodiment of the present application. [Figure 2]This is a schematic diagram of an embodiment of an optical splitting method according to one embodiment of this application. [Figure 3] This is a schematic diagram illustrating an exemplary concentrated light source according to one embodiment of the present application. [Figure 4] This is a schematic diagram illustrating an exemplary system architecture according to one embodiment of the present application. [Figure 5a] This is an illustrative schematic diagram of a first optical splitting device according to one embodiment of the present application. [Figure 5b] This is another illustrative schematic diagram of a first optical splitting device according to one embodiment of the present application. [Figure 6a] This is a schematic diagram of a method for emitting light from a concentrated light source and a method for acquiring the required light from a target light emission device according to one embodiment of this application. [Figure 6b] Another schematic diagram of a method for emitting light from a concentrated light source and a method for acquiring the required light from a target light emission device according to one embodiment of this application. [Figure 6c] This is yet another schematic diagram of a method for emitting light from a concentrated light source and a method for acquiring the required light from a target light emission device according to one embodiment of this application. [Figure 7] This is a schematic diagram illustrating an exemplary system architecture according to one embodiment of the present application. [Figure 8] This is a schematic diagram of an embodiment of an optical splitting device according to one embodiment of this application. [Figure 9] This is a schematic diagram of the structure of a control device according to one embodiment of this application. [Figure 10] This is a schematic diagram of the structure of an optical splitting system according to one embodiment of this application. [Figure 11] This is a schematic diagram illustrating the structure of an optical fiber according to one embodiment of this application. [Figure 12] This is a schematic diagram illustrating an example of the light transmission region of an optical waveguide end structure according to one embodiment of this application. [Figure 13a] This is a schematic diagram illustrating an example of an optical waveguide end structure according to one embodiment of the present application. [Figure 13b] This is another illustrative schematic diagram of an optical waveguide end structure according to one embodiment of the present application. [Figure 13c] This is yet another illustrative schematic diagram of an optical waveguide end structure according to one embodiment of the present application. [Figure 13d] This is yet another illustrative schematic diagram of an optical waveguide end structure according to one embodiment of the present application. [Figure 14a] This is an illustrative schematic diagram of a cross-section of an optical core in an optical waveguide end structure corresponding to a projection device, according to one embodiment of the present application. [Figure 14b] This is a schematic diagram illustrating the light intensity distribution of a target light type for a headlamp according to one embodiment of this application. [Figure 14c] This is a schematic diagram illustrating a cross-section of an optical core in an optical waveguide end structure corresponding to a headlamp according to one embodiment of this application. [Figure 15] This is a schematic diagram of the structure of a vehicle according to one embodiment of the present application. [Modes for carrying out the invention]

[0044] The embodiments of this application will be described in detail below with reference to the accompanying drawings. It will be apparent that the embodiments described are only a part of the embodiments of this application, and not all of them. Those skilled in the art will recognize that, as the technology evolves and new scenarios emerge, the technical solutions provided in the embodiments of this application may also be applicable to similar technical problems.

[0045] In the specification, claims, and accompanying drawings of this application, terms such as “first,” “second,” etc., are intended to distinguish similar objects and do not necessarily indicate a specific order or sequence. The data used in this manner are interchangeable where appropriate, and it should be understood that the embodiments described herein may be implemented in an order other than that illustrated or described herein. In addition, terms such as “include” and “have,” and any other variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device containing a list of steps or units is not necessarily limited to those explicitly enumerated steps or units, and may include other steps or units that are not explicitly enumerated or are specific to such process, method, product, or device.

[0046] Embodiments of this application provide a light splitting method for appropriately using a light source and improving the utilization rate of the light source. Embodiments of this application further provide corresponding devices, computer devices, computer-readable storage media, computer program products, etc. Details will be described separately.

[0047] An optical splitting method provided in one embodiment of this application may be applied to complex hardware systems such as vehicles, ships, airplanes, or railway trains.

[0048] The following describes a vehicle to which embodiments of the present invention are applied. As shown in Figure 1, Figure 1 is a functional block diagram of an embodiment of the vehicle according to this application. In one embodiment, the vehicle 100 is configured to operate in a fully autonomous driving mode or a partially autonomous driving mode. For example, the vehicle 100 can control itself in autonomous driving mode and can also determine the current state of the vehicle and its surrounding environment by manual operation, determine the possible behavior of at least one other vehicle in the surrounding environment, and determine the confidence level corresponding to the likelihood that the other vehicle will perform the possible behavior. The vehicle 100 is controlled based on the determined information. When the vehicle 100 is in autonomous driving mode, the vehicle 100 can operate without human interaction. The vehicle 100 may include various systems, each system may include multiple components. In addition, all systems and elements of the vehicle 100 may be connected to each other by wire or wireless.

[0049] The vehicle shown in this embodiment includes a sensor system 120, which may include several sensors that sense information about the surrounding environment of the vehicle 100. For example, the sensor system 120 may include a positioning system 121 (the positioning system may be a global positioning system (GPS), a COMPASS system, or another positioning system), an inertial measurement unit (IMU) 122, a radar 123, a laser rangefinder 124, and a camera 125. The sensor system 120 may further include sensors for the internal systems of the monitored vehicle 100 (e.g., an in-cabin air quality monitor, a fuel gauge, an oil temperature gauge, etc.). Sensor data from one or more of these sensors can be used to detect objects and their corresponding features (position, shape, direction, speed, etc.). Such detection and recognition are important functions for the safe driving of the autonomous vehicle 100. The positioning system 121 may be configured to estimate the geographical location of the vehicle 100. The IMU 122 is configured to sense changes in the position and orientation of the vehicle 100 based on inertial acceleration. In one embodiment, the IMU 122 may be a combination of an accelerometer and a gyroscope. The radar 123 senses objects in the environment surrounding the vehicle 100 by using radio signals. In some embodiments, in addition to sensing objects, the radar 123 may be further configured to sense the velocity and / or forward direction of objects. The specific type of radar 123 is not limited in this embodiment. For example, the radar 123 may be a millimeter-wave radar or a laser radar. The laser rangefinder 124 may sense objects in the environment in which the vehicle 100 is located by using a laser. In some embodiments, the laser rangefinder 124 may include one or more laser sources, a laser scanner, one or more detectors, and other system components. The camera 125 may be configured to capture multiple images of the environment surrounding the vehicle 100. The camera 125 may be a static camera, a video camera, a monocular / binocular camera, or an infrared imaging device.

[0050] Vehicle 100 further includes an advanced driving assistance system (ADAS) 110. During the vehicle's driving process, the ADAS 110 continuously senses the surrounding environment, collects data, identifies, detects, and tracks static and dynamic objects, and performs system computing and analysis based on navigation map data. In this way, the driver can recognize potential risks in advance, thereby effectively improving the comfort and safety of vehicle driving. For example, the ADAS 110, sensor The vehicle may be controlled based on data acquired by system 120. As another example, ADAS 110 may control the vehicle based on in-vehicle data. In-vehicle data may include main data from the vehicle's dashboard (fuel consumption, motor speed, temperature, etc.), information on vehicle speed, information on steering wheel rotation angle, and vehicle attitude data.

[0051] ADAS110 can control the vehicle in one or more of the following ways:

[0052] The ADAS 110 adjusts the forward direction of the vehicle 100. The ADAS 110 controls the speed of the vehicle 100 by controlling the operating speed of the vehicle's engine. The ADAS 110 manipulates images captured by the camera 125 to recognize objects and / or features in the environment surrounding the vehicle 100. In some embodiments, the ADAS 110 may be configured to perform tasks such as mapping the environment, tracking objects, and estimating the speed of objects. The ADAS 110 determines the driving path of the vehicle 100. In some embodiments, the ADAS 110, sensor The ADAS 110 can determine the vehicle's travel path by referring to one or more predetermined map data from system 120. The ADAS 110 can recognize, evaluate, and avoid potential obstacles in the vehicle's environment, or traverse potential obstacles in another manner.

[0053] Vehicle 100 interacts with external sensors, other vehicles, other computer systems, or users by using peripheral devices 130. Peripheral devices 130 may include a wireless communication system 131, an on-board computer 132, a microphone 133, and / or a loudspeaker 134.

[0054] In some embodiments, peripheral devices 130 provide means for the user of the vehicle 100 to interact with a user interface. For example, an onboard computer 132 may provide information to the user of the vehicle 100. The user interface may further operate the onboard computer 132 to receive user input. The onboard computer 132 may be operated by using a touchscreen. In another case, peripheral devices 130 may provide means for the vehicle 100 to communicate with other devices located in the vehicle. For example, a microphone 133 may receive voice (e.g., voice commands or other voice input) from the user of the vehicle 100. Similarly, a loudspeaker 134 may output voice to the user of the vehicle 100.

[0055] The wireless communication system 131 can perform wireless communication with one or more devices directly or via a communication network. For example, the wireless communication system 131 may use third-generation (3G) mobile communication technologies such as code division multiple access (CDMA), global system for mobile communications (GSM), and general packet radio service (GPRS) for cellular communication. The wireless communication system 131 may use fourth-generation mobile communication technology (4G) such as long-term evolution (LTE) for cellular communication. The wireless communication system 131 may further use fifth-generation mobile communication technology (5G) for cellular communication. The wireless communication system 131 may use a wireless local area network (WLAN) for communication. In some embodiments, the wireless communication system 131 may communicate directly with devices by using an infrared link, Bluetooth®, or the ZigBee protocol. The wireless communication system 131 may further utilize various vehicle communication systems. For example, the wireless communication system 131 may include one or more dedicated short-range communications (DSRC) devices, which may include public and / or private data communications between vehicles and / or roadside stations.

[0056] Some or all of the functions of the vehicle 100 are controlled by the computer system 140. The computer system 140 controls various systems ( sensorThe functions of the vehicle 100 can be controlled based on inputs received from the system 120, ADAS 110, peripheral devices 130, etc., and the user interface. The computer system 140 may include at least one processor 141, which executes instructions stored in a non-temporary computer-readable medium such as memory 142. Alternatively, the computer system 140 may be a group of computing devices that control individual components or subsystems of the vehicle 100 in a distributed manner.

[0057] The type of processor 141 is not limited to this embodiment. For example, the processor 141 may be one or more field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), system on chips (SoCs), or central processing units (central processing The processor 141 may be a CPU unit, a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), another integrated chip, or any combination of the aforementioned chips or processors. The processor 141 may be located inside the vehicle, or it may be located far away from the vehicle and perform wireless communication with the vehicle.

[0058] In some embodiments, memory 142 may contain instructions (e.g., program logic) which may be executed by processor 141 to perform various functions of vehicle 100. In addition to instructions, memory 142 may further store data, such as map data, route information, vehicle position, direction, and speed, as well as data for another vehicle. The information stored in memory 142 may be used by vehicle 100 and computer system 140 when vehicle 100 is operating in autonomous mode, semi-autonomous mode, and / or manual mode.

[0059] The vehicle 100 shown in this embodiment further includes at least two light-emitting devices 150 (only one of the two light-emitting devices is shown as an example in Figure 1) and a centralized light source 160. The light-emitting devices 150 may be display devices or lighting fixtures within the vehicle 100. The display devices may be display panels and / or projection devices, and the lighting fixtures may be vehicle lights, in-vehicle lighting devices, in-vehicle indicators to assist the driver in driving, or indicators to prompt passengers. The concentrated light source 160 is configured to supply light energy to at least two light-emitting devices. The vehicle 100 can allocate the light emitted by the concentrated light source by using a control device, thereby determining which devices currently need to emit light. Each light emission The devices acquire their respective corresponding light by using optical waveguides. The control device may be located in the computer system 140 shown in Figure 1, or it may be another computing device in the vehicle 100 other than the computer system 140. The at least two light-emitting devices 150 and the concentrated light source 160 shown in this embodiment can be applied not only to vehicles but also to driving tools such as ships, airplanes, and railway trains.

[0060] The following describes, with reference to embodiments, the process of allocating light emitted by a centrifugal light source so that each light-emitting device that currently needs to emit light can acquire its corresponding light by using an optical waveguide.

[0061] One embodiment of the optical splitting method provided in the embodiments of this application may be applied to a control device for a driving tool such as a vehicle. A vehicle is used as an example. The vehicle further includes at least two optical emitting devices that supply optical energy by using a concentrated light source, each of which is connected to the concentrated light source by using an optical waveguide.

[0062] A light-emitting device is a device that needs to emit light, and it does not necessarily have to include a light source.

[0063] An optical waveguide is a dielectric material that guides light waves transmitted within it, and is also called a dielectric optical waveguide. Optical waveguides can take several forms. For example, an optical waveguide may be a planar optical waveguide, a strip optical waveguide, or a cylindrical optical waveguide. A cylindrical optical waveguide is generally called an optical fiber, or simply an optical fiber.

[0064] As shown in Figure 2, this embodiment includes the following steps.

[0065] 201: Obtain the light emission command.

[0066] The light emission command carries information about a first optical power required by one of at least two target optical emission devices, or information about a first optical power required by each of a plurality of target optical emission devices.

[0067] Light emission commands can be generated in multiple ways. They may be generated by a control device, or transmitted to the control device by another device via wired or wireless communication. Light emission commands may be triggered to be generated based on user operation, or they may be automatically generated by the control device or another device based on data detected by a camera or other sensor on the vehicle.

[0068] For example, in one instance, the driver may trigger a control device to generate a light emission command by inputting voice commands into the on-board computer, performing a specified control gesture, tapping a specified physical button on the vehicle, or tapping a specified virtual button on the on-board computer's touchscreen. In another instance, the control device is an advanced driving assistance system (ADAS). After acquiring an environmental image captured by an on-board camera, the ADAS determines, based on the environmental image, that the environmental brightness corresponding to the vehicle is below a preset brightness threshold, and generates a light emission command for a specified vehicle light fixture, triggering the vehicle to turn on the vehicle light fixture for illumination. The target light emission device can be considered a light emission device that needs to emit light at the time corresponding to the light emission command, or for a period corresponding to that time.

[0069] In this embodiment of the present application, each target light-emitting device may have a one-to-one correspondence with one light emission command, or one light emission command may carry information about the first light power required by each of a plurality of target light-emitting devices. The first light power required by a target light-emitting device may be fixed. For example, if the target light-emitting device is a headlamp, the first light power required by the headlamp may be fixed in advance. After detecting a user trigger operation to trigger the headlamp to turn on for illumination, the vehicle may query pre-stored information about the first light power corresponding to the headlamp and generate a light emission command corresponding to the headlamp. Alternatively, the first light power required by a target light-emitting device may vary based on the application scenario. For example, if the target light-emitting device is a display panel of an onboard computer, and the user adjusts the display brightness of the onboard computer's display interface, the onboard computer may generate a light emission command corresponding to the onboard computer's display panel based on the display brightness selected by the user and be triggered to send the light emission command to a control device. The illumination command carries information about a first light power corresponding to the display panel of the in-vehicle computer, and the first light power corresponding to the display panel of the in-vehicle computer is determined based on the display brightness selected by the user.

[0070] 202: Based on information about the first optical power, the light emitted by the concentrated light source is allocated so that each target light-emitting device acquires its corresponding light by using an optical waveguide.

[0071] A centralized light source can supply light energy to multiple light-emitting devices simultaneously. The centralized light source can be located inside a vehicle. For example, it may be located in the vehicle's chassis or in a space inside the vehicle, or in a large open space such as the vehicle's trunk or engine block. Typically, the light source requires additional heat dissipation devices. Compared to a system in which separate light sources are placed to supply light energy to each light-emitting device, in this embodiment of the present application, placing a centralized light source inside a vehicle to supply light energy to multiple light-emitting devices reduces the constraints on the heat dissipation method and volume of the centralized light source, thereby saving space and hardware costs and facilitating more flexible vehicle design and production.

[0072] The specific type of concentrated light source is not limited to this embodiment of the present application. For example, the concentrated light source may be a halogen lamp, a light-emitting diode (LED), a laser, a high-pressure mercury lamp, or a xenon lamp. In one example, the concentrated light source is set as a laser. In this way, the light emitted by the concentrated light source is sufficiently focused and can be conveniently received and transmitted by an optical waveguide, thereby avoiding large optical losses during optical transmission.

[0073] To ensure that a centrifugal source can supply robust optical energy when optical emitting devices need to emit light simultaneously, the maximum optical power of a centrifugal source can be determined based on the maximum optical power and optical losses of the optical emitting devices. Optical losses may include optical losses in processes such as optical transmission, reception, beam coupling, and beam splitting of the centrifugal source, optical splitting devices, optical waveguides, and optical emitting devices. In addition, in some examples, statistics on the past service life and optical power corresponding to the past service life of the optical emitting devices may be collected in advance, and then, based on the information collected in advance, the maximum sum of the optical powers of at least two optical emitting devices emitting light simultaneously in the past service life process is determined, and based on this maximum, the maximum optical power of the centrifugal source is determined.

[0074] The concentrated light source may be a monochromatic light source (for example, a blue light source) or a multichromatic light source (for example, a red-green-blue (RGB) trichromatic light source).

[0075] If the concentrated light source is a multicolor light source, the multiple different colored lights generated by the concentrated light source may be combined and then assigned to each target light-emitting device by using an optical waveguide.

[0076] If the condensing light source is monochromatic, or if it is polychromatic, but the polychromatic light generated by the condensing light source is combined and then allocated to each target light-emitting device using an optical waveguide, then the light allocated to each light-emitting device by the condensing light source can be considered to be single-wavelength light, in other words, monochromatic light. Thus, if there are light-emitting devices and the wavelength of light required by the light-emitting devices differs from the wavelength of light emitted by the condensing light source, a wavelength converter corresponding to the light-emitting device may be used to perform wavelength conversion on the light transmitted to the light-emitting devices. The specific type of wavelength converter is not limited here. For example, the wavelength converter may perform wavelength conversion by using fluorescent materials, or it may perform wavelength conversion based on the principle of photoelectric conversion.

[0077] In some examples, as shown in Figure 3, to improve the reliability of a centralized light source, the centralized light source may include a first light source, at least one second light source, and an optical switch. The first light source is the light source normally used, and the second light source is a backup light source for the first light source. The number of second light sources is not limited here and may be determined based on, for example, the service life and failure rate of the first light source. In actual application scenarios, if a failure of the first light source is detected, the control device may use an optical switch to switch to an available second light source to ensure that the centralized light source emits light normally, thereby improving the reliability of the centralized light source.

[0078] In this embodiment of the present application, the control device can control the on / off state of one or more components, such as optical splitting devices, optical coupling devices, and optical switches, on the optical transmission path from a concentrated light source to a target light emission device, and adjust parameters such as the splitting ratio to allocate the light emitted by the concentrated light source.

[0079] In this embodiment of the present application, a concentrated light source can, based on requirements, supply light energy to one or more of at least two light-emitting devices in a light-splitting system, thereby reducing the amount of light sources in the vehicle or other hardware system, lowering the spatial and heat dissipation requirements of the light sources, and improving the utilization rate of the light sources used. In addition, the light emitted by the concentrated light source can be allocated based on a first light power, thereby allowing for flexible allocation of the light emitted by the concentrated light source based on actual scenario requirements, and ensuring that the light transmitted to the light-emitting devices meets the light emission requirements of the light-emitting devices.

[0080] In some embodiments, the light-emitting device may include a display device and / or a lighting fixture.

[0081] A display device may include a projection device and / or a display panel.

[0082] A display panel is a device that performs planar or curved display using a display screen, such as a touchscreen or non-touchscreen. For example, a display panel may include at least one of the following: a touchscreen for an in-vehicle computer and various meter display panels. A projection device is a device that can project images or videos onto physical objects such as curtains, walls, or roads, or onto inanimate objects such as air. For example, a projection device may include at least one of the following: a head-up display device in a vehicle, a device configured to perform projected displays for passengers in the passenger compartment, and a device configured to project driving instruction information onto the vehicle's travel path.

[0083] Lighting fixtures may be lighting devices or information display devices. For example, a lighting fixture may be at least one of the following: vehicle lighting fixtures, in-vehicle lighting devices, indicators to assist the driver when driving in a vehicle, or indicators to alert passengers.

[0084] Based on different scenario requirements, it can be seen that a concentrated light source can be used to supply light energy to multiple types of light-emitting devices within a vehicle or other hardware system.

[0085] In some embodiments, the vehicle further includes a first optical splitting device.

[0086] The allocation of light emitted from a concentrated light source based on information about a first optical power, so that each target light-emitting device acquires its corresponding light by using an optical waveguide, includes the following: Determine the division ratio of the first optical division device based on information about the first optical power, so that each target optical emission device acquires its corresponding optical light by using an optical waveguide.

[0087] Figure 4 is an illustrative schematic diagram of a system architecture according to one embodiment of the present application. The first optical splitting device 42 may be located in the optical transmission path between the centrifugal light source and each optical output device. Thus, a portion of the light emitted by the centrifugal light source 43 assigned to each optical waveguide can be determined by determining the splitting ratio of the first optical splitting device 42.

[0088] The first optical splitting device may consist of one optical splitter or may include multiple optical splitters. An optical splitter, also sometimes called an optical beam splitter or optical power splitter, is a device that divides light input from an input port into multiple parts according to a specific ratio, and then outputs each of these parts of light from multiple output ports. In the optical splitters included in the first optical splitting device, the splitting ratio of at least one optical splitter is adjustable. Optical splitters having an adjustable splitting ratio may be designed based on the principles of electro-optic, acousto-optic, magneto-optic, or thermo-optic effects. This is not limited to this embodiment of the present application. The adjustable range of the splitting ratio of an optical splitter having an adjustable splitting ratio may be selected based on the requirements of the actual application scenario. For example, in some cases, the splitting ratio of an optical splitter may be adjustable within the range of [0,1]. In some scenarios, an optical splitter may be used as an optical switch for an optical output device corresponding to the optical splitter.

[0089] Optical splitters in optical division devices can be arranged in multiple configurations.

[0090] For example, Figure 5a is an illustrative schematic diagram of a first optical splitting device.

[0091] The first optical splitting device is an optical splitter 511. The centrifugal light source 501 corresponds to the input port of the optical splitter 511. Each optical output device (e.g., optical output devices 521, 522, and 523 in Figure 5a) corresponds to an output port of the optical splitter 511, with different optical output devices corresponding to different output ports. When the current target optical output devices are optical output devices 521 and 522, after the input port of the optical splitter 511 receives light emitted by the centrifugal light source 501, the values ​​of the optical energy output by the output ports corresponding to optical output devices 521 and 522, respectively, are obtained based on information regarding the first optical power required by optical output devices 521 and 522, respectively, that is, the splitting ratio of the optical splitter 511 to the output ports can be determined.

[0092] As another example, Figure 5b is a schematic diagram of another exemplary first optical splitting device. The first optical splitting device may include a multilevel optical splitter. Optical splitter 512 is used as a first-level optical splitting device, optical splitters 513 and 514 are second-level optical splitting devices, and optical splitters 515 and 516 are used as third-level optical splitting devices. The output ports of optical splitting device 513 correspond to optical splitters 515 and 516, respectively. The two output ports of optical splitter 515 correspond to the left headlamp 531 and the right headlamp 532 in the vehicle, respectively. The two output ports of optical splitter 516 correspond to the left taillamp 533 and the right taillamp 534 in the vehicle, respectively. The output ports of optical splitting device 514 correspond to display devices 541 and 542 in the vehicle, respectively.

[0093] The splitting ratios of optical splitters 512, 513, and 514 are adjustable. The splitting ratios of optical splitters 515 and 516 are fixed at 1:1.

[0094] In this embodiment of the present application, the division ratio of the first optical splitting device corresponding to the optical output device is determined based on the first optical power, and the optical energy from the concentrated light source can be flexibly allocated by using the first optical splitting device based on actual scenario requirements, such that the target optical energy transmitted to the optical output device can satisfy the optical output requirements of the optical output device.

[0095] Optionally, the emission method of the concentrated light source and the method by which the target light emission device acquires the required light may be one of the following:

[0096] 1. In one embodiment, as shown in Figure 6a, the concentrated light source 61 can emit three colors of light: red, green, and blue. These three colors of light are combined into white light using an optical multiplexing component 601 and an optical coupling device 602. The optical multiplexing component 601 can concentrate the three colors of light emitted by the concentrated light source 61, and the optical coupling device 602 can combine the concentrated three colors of light to obtain white light.

[0097] If the color of light required by the target light emitting device 611 is the same as the color of the white light output by the optical coupling device 602, the target light emitting device 611 can emit light based on the received white light.

[0098] If the target light emitting device 612 needs to perform color projection, the optical demultiplexer 621 corresponding to the target light emitting device 612 may demultiplex the received light to obtain red, green, and blue light, thereby allowing the target light emitting device 612 to obtain the three necessary colors separately and independently for subsequent projection display.

[0099] If the color of light required by the target light emitting device 613 differs from the color of the white light output by the optical coupling device 602, the target light emitting device 613 can use the corresponding wavelength converter 622 to perform wavelength conversion on the received white light and obtain light whose color is the color required by the target light emitting device 613.

[0100] 2. In one embodiment, as shown in Figure 6b, the concentrated light source 62 may emit blue light, and each target light emitting device (e.g., target light emitting device 614 and target light emitting device 615 in the figure) may adjust the color of the received light by using their respective fluorescent materials so that the color of the light acquired by the corresponding target light emitting device satisfies their respective color requirements.

[0101] 3. In one embodiment, a concentrated light source is configured to emit red, green, and blue light, which are transmitted separately when emitted from the concentrated light source, and a light emission command further carries the color information of the light required by each target light emission device.

[0102] The aforementioned step of determining the division ratio of the first optical division device based on information regarding the first optical power includes: A step of determining the division ratio of a first optical splitting device for red light, green light, and blue light, respectively, based on first optical power and color information.

[0103] In this embodiment, the splitting ratios of the first optical splitting device for red, green, and blue light may be the same as the splitting ratios of the first optical splitting device for the red, green, and blue light received by each target light-emitting device. To facilitate setting the splitting ratios for the red, green, and blue light received by each target light-emitting device, the first optical splitting device may include multiple optical splitters, which may have a one-to-one correspondence with multiple light-emitting devices. Alternatively, the first optical splitting device may be a single optical splitter, the output port of which corresponds to the red, green, or blue light of the light-emitting device.

[0104] In the following section, this embodiment will be explained using Figure 6c as an example.

[0105] As shown in Figure 6c, in one example, the concentrated light source 63 can emit three types of light: red light, green light, and blue light. After being emitted from the concentrated light source 63, these three types of light are transmitted separately and independently by using different optical waveguides.

[0106] The light required by the target light emitting device 616 is white light, and the division ratio of the first light division device 605 to the red, green, and blue light corresponding to the target light emitting device 616 is 1:1:1, so that the red, green, and blue light received by the target light emitting device 616 are combined into the required white light.

[0107] The light required by the target light emitting device 617 is yellow light, and the division ratio of the first light division device 605 for the red, green, and blue light corresponding to the target light emitting device 617 is 1:1:0 so that the target light emitting device 617 can acquire yellow light obtained by combining red and green light.

[0108] In this embodiment of the present application, the first optical splitting device can be used not only to control the method of allocating light emitted from a concentrated light source to a target optical emitter, but also to control the color of light received by the target optical emitter by adjusting the splitting ratios corresponding to red, green, and blue light, respectively, thereby significantly improving control efficiency, reducing the use of wavelength converters, and lowering hardware costs.

[0109] In some embodiments, each light-emitting device is connected to a second light-splitting device, which in turn is connected to an optical power meter.

[0110] This method further includes: When the target light-emitting device emits light, the steps include acquiring a third optical power detected by an optical power meter corresponding to the target light-emitting device, and A step of determining the division ratio of a first optical splitting device based on a third optical power, and / or determining the optical power of a concentrated light source.

[0111] In this embodiment of the present application, each optical output device is connected to a corresponding second optical splitting device by means of an optical waveguide, and each second optical splitting device is connected to a corresponding optical power meter by means of an optical waveguide.

[0112] The division ratio of the second optical splitting device is a fixed value. In this way, the ratio of the power of the light received by the optical output device corresponding to any second optical splitting device to the third optical power detected by the optical power meter corresponding to the second optical splitting device is a fixed value. Therefore, in this embodiment of the present application, the third optical power detected by the optical power meter corresponding to the target optical output device can be used to determine the value of the optical energy of the light received by the corresponding target optical output device and to determine whether the value of the optical energy of the light received by the corresponding target optical output device satisfies the requirements of the corresponding target optical output device.

[0113] Typically, a second optical splitting device allocates more optical energy to the corresponding target optical emission device and less optical energy to the corresponding optical power meter. In this way, the majority of the light can be transmitted to the corresponding target optical emission device for emission, and only a small portion of the light can be transmitted to the corresponding optical power meter for detection, thereby avoiding the waste of optical resources.

[0114] For example, if the second division ratio of the second optical splitting device corresponding to the target optical emission device is 1:99, then the ratio of the third optical power detected by the optical power meter corresponding to the target optical emission device to the optical power of the light received by the target optical emission device is 1:99.

[0115] Figure 7 is an exemplary schematic diagram of a system architecture according to one embodiment of the present application. Optical output devices 731 and 732 each correspond to a second optical splitting device and an optical power meter, and the splitting ratio of the second optical splitting devices corresponding to optical output devices 731 and 732 is 1:99 in both cases.

[0116] In this embodiment of the present application, the third optical power detected by an optical power meter connected to a second optical splitting device may be used as feedback information regarding the light received by the target optical emitter, thereby enabling the control device to effectively monitor whether the light received by each target optical emitter can meet the requirements of each target optical emitter by using the second optical splitting device and the optical power meter, and to perform timely adjustments when deviations occur.

[0117] In some embodiments, the target light-emitting device includes a first light-emitting device and a second light-emitting device, wherein the ratio of the maximum light power corresponding to the first light-emitting device to the maximum light power corresponding to the second light-emitting device is less than a preset ratio threshold.

[0118] This method further includes: If it is detected that the first optical power of the first optical output device has been updated, the step of updating the division ratio of the first optical splitting device based on the updated first optical power of the first optical output device.

[0119] In this embodiment of the present application, the preset ratio threshold is typically small. For example, the preset ratio threshold may be 0.2, 0.1, or 0.05. In this way, the ratio of the maximum optical power corresponding to the first optical output device to the maximum optical power corresponding to the second optical output device is less than the preset ratio threshold, indicating that the maximum optical power corresponding to the first optical output device is clearly smaller than the maximum optical power corresponding to the second optical output device.

[0120] The preset ratio threshold can be set based on user requirements regarding the accuracy of the light intensity of the first and second light-emitting devices.

[0121] For example, the first light-emitting device is a display panel for an on-board computer in a vehicle, and the second light-emitting device is a headlamp in a vehicle. In actual use, users typically cannot perceive fluctuations in the light intensity of a headlamp within a 5% range, so the preset ratio threshold may be set to 5%. In one example, if the maximum light power corresponding to the on-board computer display panel is 200 milliwatts (mW) and the maximum light power of the headlamp is 5 watts (W), then the maximum light power required by the display panel is less than 5% of the maximum light power of the headlamp. The on-board computer display panel and the headlamp are connected separately to the first light-splitting device by using an optical waveguide. In this case, the display panel may be used as the first light-emitting device in this embodiment of the present application, and the headlamp may be used as the second light-emitting device in this embodiment of the present application.

[0122] In this embodiment of the present application, the division ratio of the first optical splitting device may be updated based on the first optical power of the second optical emitter and the updated first optical power of the first optical emitter in order to reallocate the light acquired by the first optical emitter and the second optical emitter, respectively. In this case, the sum of the light acquired by the first optical emitter and the second optical emitter, respectively, may remain unchanged before and after the reallocation. In this way, the optical power of the concentrated light source may also remain unchanged, and only the division ratio of the first optical splitting device needs to be updated.

[0123] For example, in one case, the target light-emitting devices are the display panel of the in-vehicle computer and the vehicle's headlights. The first light-emitting device is the display panel of the in-vehicle computer, and the second light-emitting device is the headlights.

[0124] In a process using an in-vehicle computer, the user may input an instruction command to adjust the brightness of the display panel, thereby updating the first light power corresponding to the display panel. Alternatively, the in-vehicle computer may automatically generate an instruction command to adjust the brightness of the display panel based on the current time or current ambient brightness, thereby updating the first light power corresponding to the display panel. However, if the control device detects that the first light power corresponding to the display panel has been updated, only the division ratio of the first light division device may be updated, and it is not necessary to adjust the light power of the concentrated light source accordingly based on the update of the first light power corresponding to the display panel. For example, if, before the update, the first light power corresponding to the display panel is 200mW, the first light power of the headlamp is 4800mW, and the total power of the concentrated light source is 5000mW, then the division ratio for the display panel is 4%, and the division ratio for the headlamp is 96%.

[0125] When it is detected that the first optical power corresponding to the display panel has been updated from 200mW to 250mW, the division ratio of the first optical splitting device is updated. This updates the division ratio for the display panel to 5%, the optical energy value of the light acquired by the display panel using the optical waveguide changes to 250mW, and the optical energy value of the light acquired by the headlamp using the optical waveguide changes to 4500mW. In this case, the division ratio for the headlamp is updated to 95%, and the total power of the concentrated light source of 5000mW remains unchanged. However, the change in the headlamp's optical power from 4800mW to 4500mW is not perceptible to the user with the naked eye. Therefore, it does not affect the effectiveness of the headlamp.

[0126] In this embodiment of the present application, although the first optical power required by the target light-emitting device varies, in the actual control process, only the division ratio of the first optical splitting device needs to be adjusted, and there is no need to adjust the optical power of the centrifugal light source. Therefore, the control procedure is optimized, frequent adjustment of the optical power of the centrifugal light source is avoided, and the service life of the centrifugal light source is extended.

[0127] In some embodiments, the method further includes: A step of determining the optical power of a concentrated light source based on a first optical power, wherein the optical power of the concentrated light source is greater than or equal to the sum of the first optical powers corresponding to each of the target light-emitting devices, and A step of controlling a concentrated light source to emit light based on the light power of the concentrated light source.

[0128] In this embodiment of the present application, the optical power of the centrifugal source may be determined based on information regarding the first optical power required by each target optical output device. The optical power of the centrifugal source is greater than or equal to the sum of the first optical powers corresponding to each target optical output device. In addition, the optical loss in the optical transmission path from the centrifugal source to each target optical output device in a process including transmission and optical splitting may be further determined as the optical loss corresponding to each target optical output device. After the optical loss corresponding to each target optical output device has been obtained, the optical power of the centrifugal source may be determined based on the optical loss corresponding to each target optical output device and information regarding the first optical power required by each target optical output device.

[0129] For example, if the first optical power of target light-emitting device a is 300 mW, the first optical power of target light-emitting device b is 1200 mW, the optical loss corresponding to target light-emitting device a is 10%, and the optical loss corresponding to target light-emitting device b is 5%, then the optical power of the concentrated light source may be as follows: 300*(1+0.1)+1200*(1+0.05)=1590(mW)

[0130] The optical power of the concentrated light source can be appropriately determined based on the first optical power, thereby meeting the requirements of the target light-emitting device while avoiding resource waste.

[0131] The above describes the optical splitting method from several aspects of the embodiments of this application. Below, the optical splitting apparatus of this application will be described with reference to the attached drawings.

[0132] As shown in Figure 8, an embodiment of the present application provides an optical splitting device 800. The optical splitting device 800 may be applied to a control device located in a vehicle. The vehicle further includes at least two optical emission devices that supply optical energy by using a concentrated light source, each of which is connected to the concentrated light source by using an optical waveguide.

[0133] One embodiment of the optical splitting device 800 includes the following: Acquisition module 801 configured to acquire emission commands, wherein the emission command carries information about a first optical power required by one of at least two target optical emitters, or information about a first optical power required by each of a plurality of target optical emitters, and Acquisition module 810, An allocation module 802 is configured to allocate light emitted by a concentrated light source based on information about a first optical power, so that each target light-emitting device acquires its corresponding light by using an optical waveguide.

[0134] Optionally, the vehicle further includes a first optical splitting device.

[0135] The allocation module 802 is configured to do the following: Determine the division ratio of the first optical division device based on information about the first optical power, so that each target optical emission device acquires its corresponding optical light by using an optical waveguide.

[0136] Optionally, the centralized light source is configured to emit red, green, and blue light, which are transmitted separately when emitted from the centralized light source, and the emission command further carries the color information of the light required by each target light-emitting device.

[0137] The allocation module 802 is configured to do the following: Based on the first optical power and color information, determine the division ratio of the first optical splitting device for red light, green light, and blue light, respectively.

[0138] Optionally, each light-emitting device is connected to a second optical splitting device, which in turn is connected to an optical power meter.

[0139] The optical splitting device 800 further includes a first decision module 803.

[0140] The first decision module 803 is configured to do the following: When the target light-emitting device emits light, a third optical power is obtained, as detected by the optical power meter corresponding to the target light-emitting device, and To determine the division ratio of the first optical splitting device and / or the optical power of the concentrated light source based on the third optical power.

[0141] Optionally, the target light-emitting device includes a first light-emitting device and a second light-emitting device, wherein the ratio of the maximum optical power corresponding to the first light-emitting device to the maximum optical power corresponding to the second light-emitting device is less than a preset ratio threshold.

[0142] The optical splitting device 800 further includes a second decision module 804.

[0143] The second decision module 804 is configured to do the following: If it is detected that the first optical power of the first optical output device has been updated, update the division ratio of the first optical splitting device based on the updated first optical power of the first optical output device.

[0144] The optical splitting device 800 further includes a control module 805.

[0145] The control module 805 is configured to do the following: Determining the optical power of a concentrated light source based on a first optical power, wherein the optical power of the concentrated light source is greater than or equal to the sum of the first optical powers corresponding to each of the target light-emitting devices, and Controlling a concentrated light source to emit light based on its light power.

[0146] Figure 9 is a schematic diagram of a possible logical structure of a control device 900 according to one embodiment of the present application. The control device 900 includes a memory 901, a processor 902, a communication interface 903, and a bus 904. The memory 901, the processor 902, and the communication interface 903 communicate with each other using the bus 904.

[0147] Memory 901 may be read-only memory (ROM), a static storage device, a dynamic storage device, or random access memory (RAM). Memory 901 may store a program. When a program stored in memory 901 is executed by processor 902, processor 902 and communication interface 903 are configured to execute steps 201 to 202, etc., in the embodiment of the optical division method described above.

[0148] The processor 902 may be a Central Processing Unit (CPU), a microprocessor, an Application-Specific Integrated Circuit (ASIC), a graphics processing unit (GPU), a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or another programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any combination thereof. The processor 902 is configured to execute a relevant program to implement functions that need to be performed by the acquisition module, allocation module, first decision module, second decision module, and control module of the optical splitting apparatus in this embodiment of the application, or to perform steps 201 to 202 of the embodiment of the optical splitting method in the embodiment of the method of the application, etc. The steps of the method disclosed with reference to embodiments of the application may be performed and achieved directly by using a hardware decoding processor, or by using a combination of hardware modules and software modules within the decoding processor. The software module may reside in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. The storage medium is located in memory 901. The processor 902 reads the information in memory 901 and, in combination with the hardware of the processor 902, performs steps 201 to 202, etc., in the embodiment of the optical division method described above.

[0149] The communication interface 903 uses transmitting and receiving devices, such as transceivers (but not limited to transceivers), to facilitate communication between the control device 900 and another device or communication network. For example, information regarding the division ratio may be transmitted to the first optical division device using the communication interface 903.

[0150] Bus 904 may implement a path for transferring information between components of the control device 900 (e.g., memory 901, processor 902, and communication interface 903). Bus 904 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. Buses may be classified as address buses, data buses, control buses, etc. For simplicity of explanation, the buses in Figure 9 are represented by using only one thick line, but this does not indicate that there is only one bus or only one type of bus.

[0151] In another embodiment of this application, a computer-readable storage medium is further provided. The computer-readable storage medium stores computer-executable instructions. When the device's processor executes a computer-executable instruction, the device performs the steps performed by the processor in Figure 9.

[0152] In another embodiment of this application, a computer program product is further provided. The computer program product includes computer executable instructions, which are stored in a computer-readable storage medium. When the processor of the device executes the computer executable instructions, the device performs the steps performed by the processor in Figure 9.

[0153] Another embodiment of this application further provides a chip system. The chip system includes a processor, which is configured to perform steps performed by the processor in Figure 9. In possible designs, the chip system may further include memory, which is configured to store program instructions and data required for a data writing device. The chip system may include a chip, or it may include a chip and another discrete device.

[0154] In another embodiment of this application, an optical splitting system 1000 is further provided, as shown in Figure 10. The optical splitting system 1000 includes a control device 900, which is configured to carry out steps 201-202 and the like in the embodiment of the optical splitting method described above.

[0155] In some embodiments, the optical splitting system 1000 further includes at least two optical emission devices 1001 (only one is shown as an example in Figure 10), each optical emission device 1001 being connected to a centrifugal light source 1002 by using an optical waveguide.

[0156] In some embodiments, the light-emitting device 1001 may include a display device and / or a lighting fixture.

[0157] A display device may include a projection device and / or a display panel.

[0158] A display panel is a device that performs planar or curved display using a display screen, such as a touchscreen or non-touchscreen. For example, a display panel may include at least one of the following: a touchscreen for an in-vehicle computer and various meter display panels. A projection device is a device that can project images or videos onto physical objects such as curtains, walls, or roads, or onto inanimate objects such as air. For example, a projection device may include at least one of the following: a head-up display device in a vehicle, a device configured to perform projected displays for passengers in the passenger compartment, and a device configured to project driving instruction information onto the vehicle's travel path.

[0159] Lighting fixtures may be lighting devices or information display devices. For example, a lighting fixture may be at least one of the following: vehicle lighting fixtures, in-vehicle lighting devices, indicators to assist the driver when driving in a vehicle, or indicators to alert passengers.

[0160] Based on different scenario requirements, it can be seen that a concentrated light source can be used to supply light energy to multiple types of light-emitting devices within a vehicle or other hardware system.

[0161] In some embodiments, an optical waveguide end structure is located at one end of the optical waveguide on the corresponding target light emitting device, and the optical waveguide end structure corresponds to the target light type of the corresponding target light emitting device.

[0162] The target light type of any target light emitting device refers to the type of light required by the target light emitting device. The target light type can be described by using at least one of the following: the form of the target light type (such as a surface light type, a ray light type, or a point light type), the shape (such as a rectangle, circle, triangle, sector, or trapezoid), the length of the target light type, the size of the target light type (such as width, length, or diameter), or the light intensity distribution within the target light type.

[0163] An optical waveguide may include an optical core and a cladding. The refractive index of the cladding is lower than that of the optical core. In this way, when light passes through the optical core at the appropriate angle, total internal reflection is formed at the boundary between the optical core and the cladding. In addition, the optical waveguide may further include a coating (e.g., a plastic coating) to protect the cladding, shell, and other structures.

[0164] Currently, optical waveguides such as optical fibers receive and output light from both ends of the waveguide. However, in this embodiment of the present application, the optical waveguide end structure of each target light output device may be used in the corresponding target light output device to form the target light type required by the corresponding target light output device. The arrangement of optical waveguides within the optical waveguide end structure and / or the light output position within the optical waveguide end structure may be set so that the light type required by the corresponding target light output device can be formed when the optical waveguide end structure emits light.

[0165] In this embodiment of the present application, the specific form of the optical waveguide end structure can be flexibly adjusted based on the requirements of the corresponding optical output device, thereby enabling the convenient and flexible generation of different optical types in different optical output devices as needed. In this way, it is not necessary to configure various different optical shaping devices within the optical output device for the different optical type requirements of the optical output device, such as light guide plates, optical uniformity plates, and other optical type conversion devices, thereby significantly reducing hardware costs.

[0166] In the following, we will use an example where the optical waveguide is an optical fiber to explain the structure of the end of an optical waveguide.

[0167] Since an optical waveguide is an optical fiber, the optical waveguide end structure is an optical fiber end structure. An optical fiber may include an optical core and a cladding. The optical refractive index of the cladding is lower than that of the optical core. In addition, an optical fiber may further include a coating (e.g., a plastic coating) to protect the cladding, shell, and other structures.

[0168] Typically, optical fibers have a cylindrical structure. As shown in Figure 11, the optical core portion of the optical fiber, which is not covered by cladding, is located separately at both ends of the optical fiber. One end may be configured to receive light, and the other end may be configured to output light. The surfaces of the optical fiber other than the two end faces corresponding to the ends of the optical core are sometimes called the side surfaces of the optical fiber. The side surfaces of the optical fiber are usually covered by cladding and coating.

[0169] The following describes some optional structures for optical waveguide end structures.

[0170] 1. In some embodiments, in an optical waveguide end structure corresponding to at least one target light-emitting device, the cladding on the side of the optical waveguide is cut to form a light-transmitting region, so that the optical waveguide end structure emits light from the side based on the corresponding target light type.

[0171] In this embodiment of the present application, in order to satisfy the requirements of the target light type in several application scenarios, the cladding on the sides of the optical fiber within the optical fiber end structure is pre-cut so that the light in the optical core within the optical fiber end structure can exit from the light-transmitting region on the sides of the optical fiber.

[0172] In some examples, the light-transmitting regions formed by cutting the cladding may be covered with a transparent material. The transparent material may be intended to protect the optical core that is exposed by cutting the cladding as appropriate.

[0173] The area and shape of the light-transmitting region can be flexibly determined based on the target light type, thereby allowing different light types to be conveniently and flexibly generated in different light-emitting devices as needed.

[0174] For example, if an optical waveguide end structure is positioned within a target light-emitting region of a display panel and used as a backlight source for the display panel, the optical waveguide end structure needs to emit light toward the display screen of the display panel. In this case, the light-transmitting region is also located on the side of the optical waveguide end structure that faces the display screen.

[0175] As another example, if the optical waveguide end structure is configured to form a linear light type that uniformly emits light, the light-transmitting region within the optical waveguide end structure may be shown in Figure 12. Since the optical energy of the optical waveguide is greater at positions far from one end of the corresponding target light-emitting device, the width of the light-transmitting region along the y-axis in Figure 12 becomes shorter at positions far from the end, thereby reducing the proportion of light emitted from the light-transmitting region at this position. However, the optical energy of the optical waveguide gradually decreases at positions closer to one end of the corresponding target light-emitting device. Therefore, in this case, the width of the light-transmitting region along the y-axis in Figure 12 becomes longer, increasing the proportion of light emitted from the light-transmitting region at this position, thereby ensuring uniformity of light emitted by the optical waveguide end structure throughout the entire light-transmitting region.

[0176] In one example, the target light emission device includes a vehicle display panel, the target light type corresponding to the display panel is a surface light type, and in the optical waveguide end structure corresponding to the display panel, the optical waveguide is bent based on the surface light type and positioned in the target light emission region to function as a backlight source for the display panel.

[0177] For example, as shown in Figure 13a, the optical waveguide end structure may be arranged in a rectangular target light-emitting region in a configuration where it is bent into multiple optical waveguide sections and arranged sequentially in a bending order, thereby forming a surface light type. Alternatively, as shown in Figure 13b, the optical waveguide end structure may be arranged in a circular target light-emitting region in a configuration where it is bent into multiple circles or the like to form a surface light type. The light-transmitting region in the optical waveguide end structure may be on the side facing the screen of the display panel.

[0178] In another example, the target light emission device includes a vehicle display panel, and the target light type corresponding to the display panel is a surface light type. As shown in Figure 13c, the optical waveguide end structure corresponding to the display panel includes two optical waveguides, each positioned on either side of the light guide plate. In addition, the cladding of the optical cores in the two optical waveguides is cut on the side facing the light guide plate to form an optical transmission region, thereby allowing the two optical waveguides to separately form linear light sources. In this way, the light emitted by the linear light sources formed by the two optical waveguides is transmitted through the light guide plate and then a surface light type can be formed for use as a backlight light source for the display panel.

[0179] In yet another example, the target light emission device includes an indicator for guiding passengers in a vehicle, and the target light type corresponding to the indicator is a linear light type. As shown in Figure 13d, the optical waveguide end structure corresponding to the indicator is an optical waveguide section having a predetermined length, starting from one end of the optical waveguide on the corresponding target light emission device. The cladding of the optical core within the optical waveguide section may be completely cut so that the optical waveguide section can form a linear light source.

[0180] 2. In some embodiments, in an optical waveguide end structure corresponding to at least one target light-emitting device, the cross-sectional shape of the optical core corresponds to the target light type of the corresponding target light-emitting device.

[0181] In this embodiment of the present application, as shown in Figure 11, a surface perpendicular to the central axis of the optical core (i.e., the x-axis in Figure 11) is used as the cross-section of the optical core.

[0182] The cross-sectional shape of the optical core corresponds to the target optical type of the corresponding target optical output device, meaning that the cross-sectional shape of the optical core is the same as or similar to the target optical type of the corresponding target optical output device. This allows the corresponding target optical type to be formed based on the cross-sectional shape of the optical core when light is emitted using one end of the optical core on the corresponding target optical output device.

[0183] Depending on the requirements of the target light type, the cross-sectional shape may be a regular shape such as a rectangle, circle, triangle, sector, or trapezoid, or it may be an irregular shape.

[0184] Optionally, in one embodiment, the target light emission device includes a projection device on a vehicle, the target light type corresponding to the projection device is a rectangular light type, and the cross-sectional shape of the optical core in the optical waveguide end structure corresponding to the projection device is rectangular.

[0185] For example, projection devices may include head-up display devices within a vehicle, devices configured to display information to passengers in the passenger compartment, and devices configured to project driving instructions onto the vehicle's travel path.

[0186] Projection devices typically use a point-type optical beam, and a specific form of this point-type is the rectangular optical beam. Figure 14a is an illustrative schematic diagram of a cross-section of an optical core in an optical waveguide end structure corresponding to a projection device. The cross-sectional shape of the optical core in the optical waveguide end structure corresponding to a projection device is rectangular, so when light is transmitted to the end portion of the optical core in the optical waveguide end structure corresponding to a projection device, the light is emitted by using the end portion of the optical core, forming a rectangular optical beam.

[0187] Optionally, in one embodiment, the target light emission device includes a vehicle headlamp, and in an optical waveguide end structure corresponding to the headlamp, the optical core of the optical waveguide includes a first optical core and a second optical core, the refractive index of the first optical core and the refractive index of the second optical core correspond to the light intensity distribution in the target light type of the headlamp.

[0188] In practical applications, standards such as GB25991-2010 specify the rules for setting photoelectric performance, light color, and headlamp temperature cycles.

[0189] In this embodiment of the present application, the first and second optical cores may be arranged in an optical waveguide end structure corresponding to a headlamp, and the refractive indices of the first and second optical cores are different. Therefore, the light transmitted to the optical waveguide end structure of the headlamp is not uniformly output to the end faces of the first and second optical cores. In this way, by using the optical waveguide end structure of the headlamp, it is possible to output light with gradient light intensity. In addition, the specific arrangement of the first and second optical cores in the optical waveguide end structure of the headlamp may be determined based on the target light type of the headlamp.

[0190] Figure 14b shows According to one embodiment of this application,This is an illustrative schematic diagram of the light intensity distribution of the target light type for a headlamp. The light intensity is strong at the top of the target light type and weak at the bottom. Based on the requirements of the target light type for the headlamp, as shown in Figure 14c, the first optical core 1401 may be positioned above the second optical core 1402, and the refractive index of the first optical core 1401 is greater than that of the second optical core 1402. In addition, the width of the first optical core 1401 may alternatively be less than the width of the second optical core 1402. In this way, the light intensity of the light output by the first optical core 1401 is greater than that of the light output by the second optical core 1402, thereby allowing the optical waveguide end structure of the headlamp to emit a light type in which the light intensity gradually decreases from top to bottom. The light type may be the same as or similar to the target light type of the headlamp, thereby reducing the use of some photoforming devices in the headlamp.

[0191] In another embodiment of this application, a vehicle 1500 is further provided, as shown in Figure 15. The vehicle 1500 includes an optical splitting system 1000.

[0192] Those skilled in the art will recognize, in combination with the examples of units and algorithmic steps described in the embodiments disclosed herein, that this application can be implemented using electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and the design constraints of the technical solution. Those skilled in the art may implement the described functions using different methods for each specific application, but these implementations should not be considered to exceed the scope of the embodiments of this application.

[0193] For the sake of a convenient and concise explanation, it will be readily apparent to those skilled in the art that the detailed working processes of the aforementioned systems, apparatus, and units can be described by referring to the corresponding processes in the embodiments of the methods described above. Further details will not be provided here.

[0194] In some embodiments provided in the embodiments of this application, it should be understood that the disclosed systems, apparatus, and methods may be implemented in other ways. For example, the embodiments of the apparatus described are merely examples. For example, the division into units is merely a logical functional division, and other divisions may be used in actual implementations. For example, multiple units or components may be combined or integrated into another system, and some features may be ignored or not performed. In addition, the mutual coupling, direct coupling, or communication connection shown or discussed may be implemented by using some interfaces. Indirect coupling or communication connection between apparatus or units may be implemented electronically, mechanically, or in other forms.

[0195] Units described as separate parts may or may not be physically separate, and parts shown as units may or may not be physical units; in other words, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected based on the actual requirements in order to achieve the objectives of the solution in the embodiment.

[0196] In addition, the functional units in the embodiments of this application may be integrated into a single processing unit, or each unit may exist physically independently, or two or more units may be integrated into a single unit.

[0197] When a function is implemented in the form of a software function unit and sold or used as an independent product, the function may be stored on a computer-readable storage medium. Based on such understanding, the technical solutions of embodiments of this application may be implemented in the form of a software product, either in essence, in part with respect to the prior art, or in part with respect to the technical solutions. A computer software product is stored on a storage medium and includes several instructions for instructing a computer device (which may be a personal computer, server, network device, etc.) to perform all or some of the steps of the method described in embodiments of this application. The aforementioned storage medium includes any medium capable of storing program code, such as a USB flash drive, removable hard disk drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0198] The above description represents only a specific implementation of the embodiments of this application and is not intended to limit the scope of protection of the embodiments of this application.

Claims

1. A method for optical splitting applied to a control device, wherein the control device is located in a vehicle, and the vehicle further comprises at least two optical emission devices that supply optical energy by using a concentrated light source, the at least two optical emission devices each having at least one image display device and at least one illuminator, and each of the optical emission devices is connected to the concentrated light source by using an optical waveguide, and the method is A step of obtaining a light emission command, wherein the light emission command indicates information relating to a first optical power required by one of the at least two optical emission devices, or information relating to a first optical power required by each of the plurality of target optical emission devices. A step of allocating light emitted by the concentrated light source based on the information relating to the first optical power, such that each target light emitting device acquires its corresponding light by using the optical waveguide. Includes, The vehicle further comprises a first optical splitting device, The step of allocating light emitted by the concentrated light source based on the information relating to the first optical power, so that each target light-emitting device acquires its respective corresponding light by using the optical waveguide, The step of determining the division ratio of the first optical splitting device based on the information relating to the first optical power, such that each target optical output device acquires its corresponding light by using the optical waveguide. Includes, Each light-emitting device is connected to a second light-dividing device, which is further connected to an optical power meter. The aforementioned method, When the target light emitting device emits light, the third optical power detected by the optical power meter corresponding to the target light emitting device is acquired. A step of determining the division ratio of the first optical splitting device based on the third optical power, and / or a step of determining the optical power of the concentrated light source. Further including, method.

2. The concentrated light source is configured to emit red light, green light, and blue light, the red light, the green light, and the blue light are transmitted separately when emitted from the concentrated light source, and the emission command further indicates the color information of the light required by each target light-emitting device. The step of determining the division ratio of the first optical division device based on the information relating to the first optical power is: A step of determining the division ratio of the first optical splitting device for the red light, the green light, and the blue light, respectively, based on the first optical power and the color information. The method according to claim 1, including the method described in claim 1.

3. The target light emission device comprises a first light emission device and a second light emission device, wherein the ratio of the maximum light power corresponding to the first light emission device to the maximum light power corresponding to the second light emission device is less than a preset ratio threshold. The aforementioned method, If it is detected that the first optical power of the first optical output device has been updated, the division ratio of the first optical division device is updated based on the updated first optical power of the first optical output device. The method according to claim 1, further comprising:

4. A step of determining the optical power of the concentrated light source based on the first optical power, wherein the optical power of the concentrated light source is greater than or equal to the sum of the first optical powers corresponding to each of the target light emitting devices, A step of controlling the concentrated light source to emit light based on the light power of the concentrated light source. The method according to claim 1, further comprising:

5. A control device comprising at least one processor, a memory, and instructions stored in the memory and executable by the at least one processor, wherein the at least one processor executes the instructions to carry out the method according to any one of claims 1 to 4.

6. A computer-readable storage medium for storing a computer program, wherein when the computer program is executed by a processor, the method described in any one of claims 1 to 4 is performed.

7. An optical splitting system comprising a control device and at least two light-emitting devices, wherein the at least two light-emitting devices each have at least one image display device and at least one illuminator, each of the light-emitting devices is connected to a concentrated light source by using an optical waveguide, and the control device is configured to carry out the method according to claim 1.

8. The optical splitting system according to claim 7, wherein an optical waveguide end structure is located at one end of the optical waveguide on a corresponding target light emitting device, and the optical waveguide end structure corresponds to the target light type of the corresponding target light emitting device.

9. The optical splitting system according to claim 8, wherein in an optical waveguide end structure corresponding to at least one target light-emitting device, the cladding on the side surface of the optical waveguide is cut to form a light-transmitting region, and the optical waveguide end structure emits light from the side surface based on the corresponding target light type.

10. The optical splitting system according to claim 9, wherein the target light emitting device comprises a vehicle display panel, the target light type corresponding to the display panel is a surface light type, and in the optical waveguide end structure corresponding to the display panel, the optical waveguide is bent based on the surface light type and arranged in the target light emitting region to function as a backlight light source for the display panel.

11. The optical splitting system according to claim 8, wherein in an optical waveguide end structure corresponding to at least one target light-emitting device, the cross-sectional shape of the optical core corresponds to the target light type of the corresponding target light-emitting device.

12. The optical splitting system according to claim 11, wherein the target light emitting device comprises a projection device on a vehicle, the target light type corresponding to the projection device is a rectangular light type, and the cross-sectional shape of the optical core in the optical waveguide end structure corresponding to the projection device is rectangular.

13. The optical splitting system according to claim 11, wherein the target light emission device includes a vehicle headlamp, and in an optical waveguide end structure corresponding to the headlamp, the optical core of the optical waveguide includes a first optical core and a second optical core, and the refractive index of the first optical core and the refractive index of the second optical core correspond to the light intensity distribution in the target light type of the headlamp.

14. A vehicle comprising the optical splitting system according to any one of claims 7 to 13.

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