A lighting and detection system and intelligent device

Abstract

The embodiments of the present application provide a lighting and detection system and an intelligent device, wherein the lighting and detection system includes at least one light source component, a scanning component, a light receiving component and a controller; wherein at least one light source component includes a white light emitting mechanism, a laser emitting mechanism and an optical coupler, wherein the white light emitting mechanism is used to generate white light, the laser emitting mechanism is used to generate a laser beam, the optical coupler is located on the light emitting side of the white light emitting mechanism and the laser emitting mechanism, and the optical coupler is used to integrate the white light and the laser beam to obtain a synthetic light beam; the scanning component is used to reflect the synthetic light beam to form a scanning light beam; the light receiving component is used to receive a reflected echo corresponding to the scanning light beam; the controller is electrically connected to the at least one light source component, and is used to control the working states of the white light emitting mechanism and the laser emitting mechanism according to the position of the scanning light beam, including when the scanning position of the scanning light beam is within the field of view of the headlight, the controller controls the white light emitting mechanism and the laser emitting mechanism to start at different times.

Description

[0001] This application is a divisional application of the Chinese patent application submitted to the China Patent Office on July 6, 2022, with application number 202210785635.1, and the invention name is "A lighting and detection system and intelligent device". Technical Field

[0002] The present application relates to the field of intelligent sensing technology, and in particular to a lighting and detection system and an intelligent device. Background Art

[0003] This section merely provides background information related to the present application and is not necessarily prior art.

[0004] In the related technology, the vehicle is equipped with a lighting system (such as a laser headlight system) and a detection system (such as a laser radar system). The lighting system is used to provide lighting functions during vehicle driving, and the detection system is used to detect targets in the vehicle's surrounding environment during the vehicle's automatic driving. Currently, the lighting system and the detection system occupy a large space in the vehicle, and the degree of integration is low, which affects the vehicle's performance. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a lighting and detection system and intelligent equipment to reduce the space occupancy rate of the lighting system and the detection system, improve the integration of the lighting system and the detection system, and enhance vehicle performance. The specific technical solutions are as follows:

[0006] An embodiment of the first aspect of the present application provides a lighting and detection system, the lighting and detection system comprising:

[0007] At least one light source assembly, the at least one light source assembly comprising a white light emitting mechanism, a laser emitting mechanism and an optical coupler, the white light emitting mechanism is used to generate white light, the laser emitting mechanism is used to generate a laser beam, the optical coupler is located at the light emitting side of the white light emitting mechanism and the laser emitting mechanism, and the optical coupler is used to integrate the white light and the laser beam to obtain a composite light beam;

[0008] A scanning component, used for reflecting the synthetic light beam to form a scanning light beam;

[0009] A light receiving component, used for receiving a reflected echo corresponding to the laser beam in the scanning light beam;

[0010] A controller is electrically connected to the at least one light source assembly, and is used to control the working states of the white light emitting mechanism and the laser emitting mechanism according to the position of the scanning light beam.

[0011] In some embodiments, the illumination and detection system includes a plurality of light source components, and the scanning component includes a micro-electromechanical system (MEMS) scanning structure.

[0012] In some embodiments, the scanning component includes a rotating mirror or a prism.

[0013] In some embodiments, the white light emitting mechanism includes an infrared laser emitter, and the infrared laser emitter is used to provide infrared laser for the infrared blind spot camera of the vehicle.

[0014] In some embodiments, the controller is used to control the working state of the white light emitting mechanism and the laser emitting mechanism, including:

[0015] When the scanning position of the scanning light beam is within the field of view of the laser radar, the controller controls the laser emitting mechanism to be turned on or off;

[0016] When the scanning position of the scanning light beam is within the headlight field of view, the controller controls the white light emitting mechanism to turn on or off; wherein, the headlight field of view includes a low beam field of view area or a high beam field of view area, and the headlight field of view area is included in the laser radar field of view area.

[0017] In some embodiments, the scanning mode of the scanning light beam includes point scanning or line scanning.

[0018] In some embodiments, the headlamp field of view area is divided into a plurality of light intensity zones, and the light intensity values ​​of white light in different light intensity zones are different. Then, when the scanning position of the scanning light beam is within the headlamp field of view area, the controller controls the white light emitting mechanism to be turned on or off, including:

[0019] In the field of view of the headlamp, the light intensity of the white light emitting mechanism is adjusted according to the light intensity partition where the scanning position of the scanning light beam is located and the light intensity value corresponding to the partition.

[0020] In some embodiments, adjusting the intensity of the white light according to the intensity partition where the scanning position of the scanning light beam is located and the intensity value corresponding to the partition includes:

[0021] According to the light intensity value corresponding to each scanning position, the duty cycle of the white light emitting mechanism corresponding to each scanning position is controlled, and / or, in each light intensity zone, the light emission frequency of the white light emitting mechanism in the zone is controlled according to the light intensity value corresponding to the zone.

[0022] In some embodiments, when the scanning position of the scanning light beam is within the field of view of the headlamp, the controller controlling the white light emitting mechanism to turn on or off further comprises:

[0023] The laser emitting mechanism and the white light emitting mechanism are controlled to work in an alternating opening cycle. In each alternating opening cycle, the laser emitting mechanism is controlled to be turned on for a first preset time and then turned off, and the white light emitting mechanism is controlled to be turned on for a second preset time and then turned off.

[0024] An embodiment of the second aspect of the present application provides a smart device, which includes any of the lighting and detection systems described above.

[0025] Beneficial effects of the embodiments of the present application:

[0026] The lighting and detection system and intelligent device provided by the embodiment of the present application, the lighting and detection system includes at least one light source component, a scanning component and a light receiving component. Among them, at least one light source component includes a white light emitting mechanism for generating white light, a laser emitting mechanism for emitting a laser beam, and an optical coupler for integrating the white light and the laser beam into a composite light beam. The scanning component is used to convert the composite light beam into a scanning light beam to scan and detect the target object to be detected or the area to be detected, and the light receiving component is used to receive the reflected echo reflected by the target object to be detected when the scanning light beam is scanned to the target object to be detected. The controller is used to control the working states such as turning on or off the white light emitting mechanism and the laser emitting mechanism. In the lighting and detection system provided by the embodiment of the present application, the optical coupler can couple the white light and the laser beam into a composite light beam, and then transmit the composite light beam to the scanning component to scan the target object to be detected, and the target object to be detected reflects the scanning laser beam to form a reflected echo transmitted to the light receiving component. Among them, since the optical coupler combines the white light and the laser beam into a composite light beam and transmits it to the scanning component and other structures, the white light used for lighting and the laser beam used for detection can share the same optical path, making the optical paths of the white light and laser beam simpler, which can improve the integration level of the white light emitting mechanism and the laser emitting mechanism, and make the arrangement position of the white light emitting mechanism and the laser emitting mechanism more reasonable, which can reduce the space occupancy rate of the lighting system and the detection system, improve the integration level of the lighting system and the detection system, and enhance the performance of intelligent equipment such as vehicles.

[0027] Of course, implementing any product or method of the present application does not necessarily require achieving all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0029] Figure 1A structural diagram of an illumination and detection system according to some embodiments of the present application;

[0030] Figure 2 A partial structural diagram of an illumination and detection system according to some embodiments of the present application;

[0031] Figure 3 A schematic diagram of an area to be detected in some embodiments of the present application;

[0032] Figure 4 Another schematic diagram of a region to be detected in some embodiments of the present application;

[0033] Figure 5 This is another schematic diagram of an area to be detected in some embodiments of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field based on the present application belong to the scope of protection of the present application.

[0035] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0036] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0037] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise, such as rotated 90 degrees or in other directions, and the spatial relative descriptors used in the text are interpreted accordingly.

[0038] In order to reduce the space occupancy rate of the lighting system and the detection system, improve the integration of the lighting system and the detection system, and improve the vehicle performance, the embodiment of the present application provides a lighting and detection system and an intelligent device, which will be described in detail below in conjunction with the accompanying drawings. Among them, the lighting and detection system provided in the embodiment of the present application can be applied to intelligent devices such as intelligent cars, drones, and intelligent robots.

[0039] like Figure 1 and Figure 2 As shown, an embodiment of the first aspect of the present application provides an illumination and detection system, which includes at least one light source component 1, a scanning component 2, a light receiving component 3 and a controller. Among them, at least one light source component 1 includes a white light emitting mechanism 11, a laser emitting mechanism 12 and an optical coupler 13, the white light emitting mechanism 11 is used to generate white light 10, the laser emitting mechanism 12 is used to generate a laser beam 20, the optical coupler 13 is located on the light emitting side of the white light emitting mechanism 11 and the laser emitting mechanism 12, and the optical coupler 13 is used to integrate the white light 10 and the laser beam 20 to obtain a composite light beam 30. The scanning component 2 is used to reflect the composite light beam 30 to form a scanning light beam 40. The light receiving component 3 is used to receive a reflected echo 50 corresponding to the laser beam in the scanning light beam 40.

[0040] The controller is electrically connected to at least one light source assembly 1 , and is used to control the working states of the white light emitting mechanism 11 and the laser emitting mechanism 12 according to the position of the scanning light beam 40 .

[0041] In the embodiment of the present application, the white light emitting mechanism 11 can be used to generate white light 10, and the white light 10 can realize the lighting function. The laser emitting mechanism 12 can be used to generate a laser beam 20, and the laser beam 20 can be used to detect the target object to be detected or the area to be detected. Among them, the area to be detected is the area where the smart device used by the lighting and detection system is located, and the target object is an object in the area to be detected that may block the smart device. Taking the smart device as a smart car as an example, the area to be detected can be the area in front of the smart car during automatic driving, and the target object is the surrounding objects of the smart car during the automatic driving process, or an object that may block the smart car.

[0042] The optical coupler 13 is located at the light-emitting side of the white light emitting mechanism 11 and the laser emitting mechanism, so the white light 10 generated by the white light emitting mechanism 11 and the laser beam 20 generated by the laser emitting mechanism 12 can be incident on the optical coupler 13, and the optical coupler 13 can integrate the white light 10 and the laser beam 20 to obtain a composite light beam 30 synthesized by the white light 10 and the laser beam 20. The scanning component 2 is used to receive the composite light beam 30 and convert the composite light beam 30 into a scanning light beam 40 to scan and detect the target object or the area to be detected.

[0043] In the embodiment of the present application, the number of at least one light source assembly 1 can be set according to actual needs, such as determined according to the range of the area to be detected, or determined according to the type of the scanning assembly 2, etc., and the present application does not limit this.

[0044] In some embodiments, the lighting and detection system includes a plurality of light source components 1, and the scanning component 2 includes a MEMS (Micro Electro Mechanical System) scanning structure. Among them, the MEMS scanning structure has the advantages of small size and high precision, and can reduce the volume of the scanning component 2, thereby reducing the occupied space of the lighting and detection system. When the scanning component 2 includes a MEMS scanning structure, due to the limited field of view of the scan, a plurality of light source components 1 can be set accordingly, and the plurality of light source components 1 are located at different positions relative to the MEMS scanning structure. Further, the plurality of light source components 1 can be arranged around the MEMS scanning structure. Based on this, light can be irradiated to the MEMS scanning structure from different positions, so that the scanning area corresponding to the scanning light beam 40 converted by the MEMS scanning structure has a larger field of view, thereby improving the detection efficiency of the lighting and detection system.

[0045] In other embodiments, the scanning component 2 includes a rotating mirror or a prism. When the scanning component 2 includes a rotating mirror or a prism, a wide range of scanning can be achieved, so the number of light source components 1 required for the illumination and detection system is small, which can reduce the cost and structural complexity of the scanning and detection system.

[0046] In the embodiment of the present application, the controller is electrically connected to the white light emitting mechanism 11 and the laser emitting mechanism 12, and the controller is used to control the working state of the white light emitting mechanism 11 and the laser emitting mechanism 12, wherein the working state of the white light emitting mechanism 11 and the laser emitting mechanism 12 includes but is not limited to the opening, closing, opening duration, closing duration, etc. of the light source of the white light emitting mechanism 11 and the laser emitting mechanism 12. The controller and the white light emitting mechanism 11 and the laser emitting mechanism 12 can be electrically connected through cables, etc., and the controller and the white light emitting mechanism 11 and the laser emitting mechanism 12 can also be connected by wireless signals, which is not limited in the present application.

[0047] In the lighting and detection system provided in the embodiment of the present application, the optical coupler 13 can couple the white light 10 and the laser beam 20 into a composite light beam 30, and then transmit the composite light beam 30 to the scanning component 2 to scan the area to be detected, and the target object in the area reflects the scanning laser beam 40 to form a reflected echo 50 that is transmitted to the light receiving component 3. Among them, since the optical coupler 13 combines the white light 10 and the laser beam 20 into a composite light beam 30 and transmits it to the scanning component 2 and other structures, the white light 10 for lighting and the laser beam 20 for detection can share the same optical path, making the optical paths of the white light 10 and the laser beam 20 more concise, and can increase the integration level of the white light emitting mechanism 11 and the laser emitting mechanism 12, so that the arrangement position of the white light emitting mechanism 11 and the laser emitting mechanism 12 is more reasonable, which can reduce the space occupancy rate of the lighting system and the detection system, improve the integration level of the lighting system and the detection system, and improve the performance of intelligent devices such as vehicles.

[0048] In some embodiments, the optical coupler 13 includes a polarization beam splitter prism, which includes a first incident surface and a second incident surface that are perpendicular to each other. The first incident surface is opposite to the white light emitting mechanism 11 , and the second incident surface is opposite to the laser emitting mechanism 12 .

[0049] In the embodiment of the present application, the polarization beam splitter prism can be a cubic structure formed by gluing two right-angle prisms. Specifically, a polarization beam splitter film or the like can be plated on the inclined surface of the right-angle prism, and then the inclined surfaces of the two right-angle prisms can be bonded to form a cubic structure. The first incident surface and the second incident surface are two incident surfaces corresponding to the inclined surface plated with the polarization beam splitter film. Since the first incident surface is arranged opposite to the white light emitting mechanism 11, and the second incident surface is arranged opposite to the laser emitting mechanism 12, the first incident surface and the second incident surface are respectively located on the light-emitting side of the white light emitting mechanism 11 and the laser emitting mechanism 12, so the white light 10 generated by the white light emitting mechanism 11 can be vertically incident to the first incident surface, and then reach the inclined surface via the first incident surface, and the laser beam 20 generated by the laser emitting mechanism 12 can also be vertically incident to the second incident surface, and then reach the inclined surface via the second incident surface, so that the polarization beam splitter film or the like on the inclined surface couples the white light 10 and the laser beam 20 into a composite light beam 30.

[0050] In some embodiments, Figure 2 As shown, the optical coupler 13 is also used to receive the reflected echo 50, and to change the transmission direction of the reflected echo 50 so that it is transmitted to the light receiving component. Specifically, after the scanning light beam 40 reaches the target object, it is reflected by the target object to form a reflected echo 50, and the reflected echo 50 reaches the scanning component 2, then reaches the optical coupler 13 in the light source component 1, and finally reaches the light receiving component 3. The transmission direction of the reflected echo 50 shares part of the optical path with the laser beam 20 generated by the laser emitting mechanism 12, so that the transmission path of the reflected echo 50 is simpler, and the position of the light receiving component 4 is closer to the position of the light source component 1, thereby improving the integration of the light receiving component 4 and the light source component, and further reducing the volume and space occupancy of the lighting and detection system.

[0051] In some embodiments, the white light emitting mechanism 11 includes an infrared laser emitter, and the infrared laser emitter is used to provide infrared laser for the infrared blind spot camera of the vehicle.

[0052] In the embodiment of the present application, an infrared laser transmitter is integrated in the white light emitting mechanism 11, and the infrared laser transmitter is used to generate infrared laser. Specifically, the white light source of the white light emitting mechanism and the infrared light source of the infrared laser transmitter can be integrated. Correspondingly, when an infrared blind spot camera is provided on smart devices such as smart cars, the infrared laser generated by the infrared laser transmitter can be sensed by the infrared blind spot camera after being scanned outward into the environment by the scanning mechanism, which can increase the light intensity of the infrared laser received by the infrared blind spot camera, increase the night vision effect of the lighting and detection system, and further increase the product performance of smart devices such as smart cars.

[0053] Furthermore, the infrared laser generated by the infrared laser transmitter can be transmitted to the optical coupler 13, so that the infrared laser, white light and laser beam are coupled into a composite light beam 40, thereby improving the integration of the infrared laser transmitter and the white light emitting mechanism 11. In addition, the infrared laser generated by the infrared laser transmitter can also be a separate optical path, and the infrared laser does not pass through the optical coupler 13, but directly reaches the scanning component 2, and then is transmitted to the infrared blind spot camera, which is not specifically limited in this application.

[0054] In order to ensure that the fused system still has the functions of each system when working independently, we divide the driving area in front of the vehicle into zones. When the scanning mechanism reflects light at different angles, the light will fall into different zones. Based on this, a corresponding relationship between the scanning position of the scanning mechanism and the scanning area can be established. Therefore, in some embodiments, the controller is used to control the working states of the white light emitting mechanism 11 and the laser emitting mechanism 12 according to the position of the scanning beam, including:

[0055] When the scanning position of the scanning beam 40 is within the field of view of the laser radar, the controller controls the laser emitting mechanism 12 to be turned on or off;

[0056] When the scanning position of the scanning beam 40 is within the field of view of the headlight, the controller controls the white light emitting mechanism 11 to be turned on or off, wherein, Figure 3 As shown, the headlight field of view area includes the low beam field of view area A3 or the high beam field of view area A2, and the headlight field of view area is included in the laser radar field of view area A1.

[0057] In the present application embodiment, Figure 3 As shown, the area A to be detected in front of the vehicle can be divided into a laser radar field of view area A1 and a headlight field of view area, and the headlight field of view area includes a high beam field of view area A2 or a low beam field of view area A3. Among them, the laser radar field of view area A1 has the widest coverage, including the high beam field of view area A2 and the low beam field of view area A3. During the scanning process of the lighting and scanning system provided in the embodiment of the present application, for the laser radar field of view area A1, the high beam field of view area A2 and the low beam field of view area A3, the controller can control the white light emitting mechanism 11 and the laser emitting mechanism 12 to be in different working states, so as to realize the partitioned scanning of the area A to be detected, so that each field of view of the area A to be detected is better adapted to the field of view of the white light emitting mechanism and the field of view of the laser emitting mechanism.

[0058] Specifically, since the scanning beam is reflected outward by the scanning component, the position of the scanning beam can be determined in real time and dynamically according to the current motion state of the scanning mechanism; or it can be pre-calibrated according to the frequency and working mode of the light source component and the scanning mechanism. In addition, when there are multiple light source components and the scanning component is a MEMS, the field of view area where the scanning beam is located can be determined according to the arrangement position of each light source component, and the position of the scanning beam at different times can be further determined.

[0059] For the laser radar field of view area A1 with the widest coverage, the controller controls the laser emitting mechanism 12 to turn on or off, specifically, controls the laser light source in the laser emitting mechanism 12 to turn on or off. For the low-beam field of view area A3 or the high-beam field of view area A2, the controller can control the white light emitting mechanism 11 to turn on or off, specifically, controls the white light source in the white light emitting mechanism 11 to turn on or off.

[0060] Furthermore, the scanning mode of the scanning beam includes point scanning or line scanning. Among them, the scanning mode of the scanning beam 40 can be set according to actual needs, such as according to the area of ​​the area to be detected, the scanning time, etc., and this application does not limit this. For different scanning methods, the controller can control the white light emitting mechanism 11 and the laser emitting mechanism 12 in the same way.

[0061] On the other hand, in order to adapt to international requirements for light intensity at different positions of headlights and reduce system power consumption, in some embodiments, the headlight field of view area (including low beam and high beam) is divided into several light intensity zones, and the light intensity values ​​of white light in different light intensity zones are different. Then, when the scanning position of the scanning light beam is within the headlight field of view area, the controller controls the white light emitting mechanism to be turned on or off, including: within the headlight field of view area, according to the light intensity zone where the scanning position of the scanning light beam is located, the light intensity of the white light emitting mechanism is adjusted according to the light intensity value corresponding to the zone.

[0062] Specifically, the following two control methods may be included: according to the light intensity value corresponding to each scanning position, the duty cycle of the white light emitting mechanism corresponding to each scanning position is controlled, and / or, in each light intensity zone, the light emission frequency of the white light emitting mechanism in the zone is controlled according to the light intensity value corresponding to the zone. The former method is "single point control", and the latter method emphasizes "regional overall control". The two methods can be applied separately or in combination, and are described as follows:

[0063] In the embodiment of the present application, the light intensity value of each scanning position is determined according to the light intensity partition where each scanning position is located. For example, in the point scanning mode, each scanning point has a specific white light intensity value corresponding thereto (line scanning can be understood as connecting multiple points into a line, which is essentially the same). Since the intensity of light is controlled by duty cycle (PWM (Pulse Width Modulation), the duty cycle control method is adopted to achieve differentiation of the white light intensity of each scanning point.

[0064] The control method of white light in the embodiment of the present application is described by taking the scanning method of the scanning light beam as point scanning as an example. The present embodiment takes the high beam field of view area as an example, and the low beam field of view area can be obtained in the same way.

[0065] In the "single point control" mode, if Figure 4 As shown, along the direction close to the center of the headlight field of view area, the headlight field of view area includes the first sub-area A21, the second sub-area A22 and the third sub-area A23 in sequence. The controller determines the scanning position (scanning point) of the scanning beam, and controls the white light intensity value of the scanning beam based on the scanning position. Among them, the white light intensity value corresponding to the first sub-area A21 is less than the white light intensity value corresponding to the second sub-area A22, and the white light intensity value corresponding to the second sub-area A22 is less than the white light intensity value corresponding to the third sub-area A23.

[0066] In one example, when the controller determines that the current scanning position is located in the first sub-area A21, the controller controls the white light emitting mechanism 11 to turn on (that is, the light source of the white light emitting mechanism 11 is turned on) and reduces the light intensity of the white light at each scanning position to the light intensity value of the first sub-area A21 by reducing the duty cycle of the light source; when the controller determines that the scanning position is located in the second sub-area A22, the controller controls the white light emitting mechanism 11 to turn on and adjusts the light intensity of the white light at each scanning position to the light intensity value of the second sub-area A22; when the controller determines that multiple scanning positions are located in the third sub-area A23, the controller controls the white light emitting mechanism 11 to turn on and increases the light intensity value of the white light at each scanning position to the light intensity value of the third sub-area A23, so that the white light intensity at each scanning position in the same sub-area is equal, and the white light intensities at scanning positions in different sub-areas are different.

[0067] In another example, on the basis of the light intensity zoning, the light intensity setting at each scanning position can also be controlled to be continuously changed. For example, when the controller determines that the scanning position is located in the first sub-area A21, the controller can further determine the specific position of the scanning position and adjust the white light intensity value at the scanning position according to the specific position. For example, along the direction close to the second sub-area A22, the white light intensity value in the first sub-area A21 increases successively, along the direction close to the third sub-area A23, the white light intensity value in the second sub-area A22 increases successively, and along the direction close to the center of the third sub-area, the white light intensity value in the third sub-area A23 increases successively. When multiple point scanning positions are connected to form at least one scanning line, the multiple point scanning positions can be distributed in the first sub-area A21, the second sub-area A22 and the third sub-area A23. Along the direction close to the center of the third sub-area A23, the controller controls the white light emitting mechanism 11 to turn on, and controls the light intensity at multiple scanning positions to increase successively.

[0068] In the "overall control" mode, the headlight field of view is divided into a number of light intensity zones, and the light intensity of white light in different light intensity zones is different. When the scanning position of the scanning light beam is within the headlight field of view, the controller controls the white light emitting mechanism 11 to turn on or off, including: in each light intensity zone, the light emission frequency of the white light emitting mechanism 11 in the zone is controlled according to the light intensity value corresponding to the zone.

[0069] In the present application embodiment, Figure 5 As shown, along the direction close to the center of the headlight field of view area, the headlight field of view area can be divided into a first light intensity zone A31, a second light intensity zone A32 and a third light intensity zone A33 in sequence. The controller can control the white light emitting mechanism 11 to turn on or off according to the scanning position of the scanning light beam, or control the white light intensity at different scanning positions.

[0070] The control method of white light in the embodiment of the present application is explained by taking the scanning mode of the scanning light beam as point scanning as an example. The white light intensity corresponding to the second light intensity partition A32 can be greater than the white light intensity of the first light intensity partition A31, and the white light intensity corresponding to the third light intensity partition A33 can be greater than the white light intensity corresponding to the second light intensity partition A32. When the controller determines that multiple scanning positions of the scanning light beam are located in the first light intensity partition A31, for multiple scanning positions, the white light emitting mechanism 11 can be controlled to turn on at some scanning positions, and the white light emitting mechanism can be controlled to turn off at some scanning positions to adjust the overall white light intensity of the first light intensity partition A31. That is, the controller can control the light emission frequency of the white light emitting mechanism to match the white light intensity corresponding to different light intensity partitions.

[0071] For example, Figure 5 As shown, Figure 5The solid black dot in the middle indicates that the controller controls the white light emitting mechanism 11 to turn on at the scanning position, and the hollow white dot indicates that the controller controls the white light emitting mechanism 11 to turn off at the scanning position. For the first light intensity partition A31, the controller can control the white light emitting mechanism 11 to turn on at three adjacent scanning positions, then control the white light emitting mechanism to turn off, and then control the white light emitting mechanism 11 to turn on again at three adjacent scanning positions, and repeat the operation. For the second light intensity partition A32, the controller can control the white light emitting mechanism 11 to turn on at four adjacent scanning positions, then control the white light emitting mechanism to turn off, and then control the white light emitting mechanism 11 to turn on again at four adjacent scanning positions, and repeat the operation. For the third light intensity partition A33, the controller can control the white light emitting mechanism 11 to turn on at each scanning position.

[0072] In addition, the controller can also control the intensity of white light at each scanning position (i.e., "single-point mode") based on the light intensity zone at which the scanning position corresponds to the scanning light beam, on the basis of controlling the light emission frequency of the white light emitting mechanism, so that the white light intensity at different scanning positions in the same light intensity zone is different.

[0073] Furthermore, when the controller determines that the scanning position of the scanning beam is located in the headlight field of view area, the controller can control the laser emitting mechanism 12 to be constantly on. Alternatively, the controller can control the laser emitting mechanism 12 to be turned on intermittently, that is, the controller controls the laser emitting mechanism 12 to be turned on for a specific period of time and then turned off, and then turned on again after the laser emitting mechanism 12 is turned off for a specific period of time, and the operation is repeated until the laser radar field of view area A1 is scanned.

[0074] In other embodiments, when the scanning position of the scanning light beam is within the field of view of the headlamp, since it coincides with the field of view of the laser radar, the above method also includes: controlling the laser emitting mechanism 12 and the white light emitting mechanism 11 to operate in an alternating opening cycle, and in each alternating opening cycle, controlling the laser emitting mechanism 12 to turn on for a first preset time and then turn off, and controlling the white light emitting mechanism 11 to turn on for a second preset time and then turn off.

[0075] In the embodiment of the present application, for the high beam field of view area A2 and the low beam field of view area A2, the controller can also alternately control the white light emitting mechanism 11 and the laser emitting mechanism 12 to turn on. The above control mechanism makes the laser emitting mechanism 12 and the white light emitting mechanism 11 work at different times, which can reduce the working time of the laser emitting mechanism 12 and the white light emitting mechanism 11 and reduce power consumption while ensuring the normal operation of the laser emitting mechanism 12 and the white light emitting mechanism 11. In addition, the laser emitting mechanism 12 and the white light emitting mechanism 11 are turned on alternately, which can also reduce the probability of optical crosstalk between the laser beam 20 generated by the laser emitting mechanism 12 and the white light 10 generated by the white light emitting mechanism 11.

[0076] In an embodiment of the present application, the controller may first control the white light emitting mechanism 11 to turn on, and control the laser emitting mechanism 12 to turn off, and after the first preset time, the controller controls the white light emitting mechanism 11 to turn off, and controls the laser emitting mechanism 12 to turn on, and continues for a second preset time. This is an alternating opening cycle. After entering the second cycle, the controller controls the white light emitting mechanism 11 to turn on again, controls the laser emitting system to turn off, and repeats the operation until the high beam field of view area A2 and the low beam field of view area A2 are scanned. Among them, the first preset time length and the second preset time length can be set according to actual needs, such as 10ms, 20ms, etc., and this application does not limit this. In addition, the first preset time length and the second preset time length may be the same or different, and this application does not limit this.

[0077] In some embodiments, the light receiving assembly 3 includes a receiving lens 31 and a detector 32. Along the transmission direction of the reflected echo 50, the detector 32 is located behind the receiving lens 31. The detector 32 is used to convert the reflected echo 50 into an electrical signal.

[0078] In the embodiment of the present application, the controller is electrically connected to the light receiving component 3, and the controller is also used to analyze the electrical signal converted from the reflected echo 50 to determine the position and shape of the target object to be detected. The receiving lens 31 is used to better receive the reflected echo 50, and can converge the reflected echo 50 so that it can better reach the detector 32, reducing the loss rate of the reflected echo 50. The detector 32 is used to convert the optical signal of the reflected echo 50 into a corresponding electrical signal. Furthermore, the detector 32 is also electrically connected to the controller, and the detector 32 can transmit the electrical signal to the controller, and the controller analyzes the electrical signal to determine the position and shape of the target object and other information, thereby realizing the detection of the area to be detected and the target object.

[0079] In some embodiments, the white light emitting mechanism 11 includes a first laser emitter and a fluorescent structure. The fluorescent structure has a fluorescent material therein, and the fluorescent material is located on the light emitting side of the first laser emitter.

[0080] In the embodiment of the present application, the first laser emitter may be a yellow laser emitter or a blue laser emitter, etc. The fluorescent material is located on the light-emitting side of the first laser emitter, so that the laser light generated by the first laser emitter can be incident on the fluorescent material, and then the laser light is converted into diffuse white light 10 by the fluorescent material to achieve illumination. Among them, the fluorescent structure can be integrated with the first laser emitter so that the fluorescent material is directly coated on the side wall of the first laser emitter. The fluorescent structure can also be a structure such as a fluorescent plate located on the light-emitting side of the first laser emitter and having a fluorescent material, which is not limited in the present application.

[0081] In some embodiments, the laser emitting mechanism 12 includes a second laser emitter 121 and a collimator 122 , and the collimator 122 is located on the light emitting side of the second laser emitter 121 .

[0082] In some embodiments, Figure 2 As shown, the laser emitting mechanism 12 includes a second laser emitter 121 and a collimator 122, and the collimator 122 is located at the light-emitting side of the second laser emitter 121. Among them, the second laser emitter 121 can be an infrared laser emitter for generating an infrared laser beam. Since the collimator 122 is located at the light-emitting side of the second laser emitter 121, the laser beam 20 generated by the second laser emitter 121 can reach the collimator 122, and the collimator 122 is used to collimate the scattered laser into a laser beam 20 transmitted in a specific direction. Among them, the collimator 122 includes but is not limited to a cylindrical lens, a spherical lens, etc.

[0083] An embodiment of the second aspect of the present application provides a control method for a lighting and detection system. The control method for a lighting and detection system is applied to a controller in the lighting and detection system. The control method includes the following steps.

[0084] Step 1: determine the scanning position of the scanning light beam.

[0085] Step 2: When the scanning position of the scanning beam is within the field of view of the laser radar, the laser emission mechanism is controlled to be turned on or off.

[0086] Step three, when the scanning position of the scanning light beam is within the field of view of the headlight, control the white light emitting mechanism to turn on or off, wherein the field of view of the headlight includes the low beam field of view area or the high beam field of view area, and the field of view of the headlight is included in the field of view of the laser radar.

[0087] Among them, the lighting and detection system also includes at least one light source component, a scanning component and a light receiving component electrically connected to the controller, at least one light source component includes a white light emitting mechanism for generating white light, a laser emitting mechanism for generating a laser beam, and an optical coupler located on the light output side of the white light emitting mechanism and the laser emitting mechanism and used to integrate the white light and the laser beam to obtain a synthetic light beam; the scanning beam is formed by the scanning component reflecting the synthetic light beam; the light receiving component is used to receive the reflected echo corresponding to the laser beam in the scanning beam.

[0088] In the embodiment of the present application, the lighting and detection system is used to scan and detect the area to be detected. The area to be detected is the area where the smart device needs to be illuminated or laser detected when the lighting and detection system is applied to the smart device. Taking the smart device as a smart car as an example, the area to be detected can be an area within a preset radius with the smart car as the center during the automatic driving process of the smart car. The area to be detected can also be an area within a preset mileage range in front of the driving direction of the smart car during the automatic driving of the smart car. The structure of the lighting and detection system in the embodiment of the present application is the same as the structure of the lighting and detection system in the embodiment of the first aspect of the present application. The relevant introduction of the aforementioned embodiment can be referred to and will not be repeated here.

[0089] In the present application embodiment, Figure 3 As shown, the area A to be detected includes the laser radar field of view area A1, the high beam field of view area A2 and the low beam field of view area A3. Among them, the laser radar field of view area A1 has the widest coverage, including the high beam field of view area A2 and the low beam field of view area A3. During the scanning process of the lighting and scanning system provided in the embodiment of the present application, for the laser radar field of view area A1, the high beam field of view area A2 and the low beam field of view area A3, the controller can control the white light emitting mechanism and the laser emitting mechanism to be in different working states, so as to realize the partitioned scanning of the area A to be detected, so that each field of view of the area A to be detected is better adapted to the field of view of the white light emitting mechanism and the field of view of the laser emitting mechanism.

[0090] In some embodiments, step three can be further refined as follows: within the field of view of the headlight, the intensity of the white light is adjusted according to the scanning position of the scanning light beam according to a preset control method; wherein the scanning position and the white light intensity value correspond one to one, and the preset control method includes duty cycle control.

[0091] In the embodiment of the present application, the corresponding relationship between the scanning position of the scanning light beam and the white light intensity value can be that each scanning position has a specific white light intensity value corresponding thereto. Alternatively, the field of view of the headlamp is divided into a plurality of sub-areas, and for each scanning position, the sub-area in which the scanning position is located is determined, and each sub-area has a white light intensity value corresponding thereto, that is, a plurality of scanning positions in each sub-area correspond to the same white light intensity value. The duty cycle control can be PWM (Pulse Width Modulation) control, and the white light intensity of different scanning positions can be controlled to be different for different scanning positions.

[0092] In some embodiments, the headlight field of view is divided into several light intensity zones, and the light intensity of white light in different light intensity zones is different. Step three can also be further refined as follows: in each light intensity zone, the light emission frequency of the white light emitting mechanism in the zone is controlled according to the light intensity value corresponding to the zone.

[0093] In the embodiment of the present application, the controller can control the white light emitting mechanism to turn on or off according to the scanning position of the scanning light beam, or control the intensity of the white light at different scanning positions.

[0094] In some embodiments, step three can be further refined as follows: controlling the laser emitting mechanism and the white light emitting mechanism to operate in an alternating opening cycle, wherein in each alternating opening cycle, the laser emitting mechanism is controlled to be turned on for a first preset time and then turned off, and the white light emitting mechanism is controlled to be turned on for a second preset time and then turned off.

[0095] In the embodiment of the present application, the controller can also control the white light emitting mechanism and the laser emitting mechanism to be turned on alternately for the high beam field of view area and the low beam field of view area. While ensuring the normal operation of the laser emitting mechanism and the white light emitting mechanism, the working time of the laser emitting mechanism and the white light emitting mechanism can be reduced. In addition, the laser emitting mechanism and the white light emitting mechanism are turned on alternately, which can also reduce the probability of optical crosstalk between the laser beam generated by the laser emitting mechanism and the white light generated by the white light emitting mechanism.

[0096] The embodiment of the third aspect of the present application provides a smart device, which includes the lighting and detection system in the embodiment of the first aspect. The smart device includes but is not limited to smart cars, drones, smart robots, etc. Since the smart device in the embodiment of the present application includes the lighting and detection system, the smart device in the embodiment of the present application has all the advantages of the lighting and detection system.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments of the present application, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A lighting and detection system, characterized in that: include: At least one light source assembly, the at least one light source assembly comprising a white light emitting mechanism, a laser emitting mechanism and an optical coupler, the white light emitting mechanism is used to generate white light, the laser emitting mechanism is used to generate a laser beam, the optical coupler is located at the light emitting side of the white light emitting mechanism and the laser emitting mechanism, and the optical coupler is used to integrate the white light and the laser beam to obtain a composite light beam; A scanning component, used for reflecting the synthetic light beam to form a scanning light beam, so as to scan the area to be detected in front of the vehicle, wherein the area to be detected in front of the vehicle includes the field of view of the headlamp; A light receiving component, used for receiving a reflected echo corresponding to the laser beam in the scanning light beam; A controller, the controller being electrically connected to the at least one light source assembly, the controller being used to control the working states of the white light emitting mechanism and the laser emitting mechanism according to the position of the scanning light beam, comprising: When the scanning position of the scanning light beam is within the field of view of the headlamp, the controller controls the white light emitting mechanism and the laser emitting mechanism to be turned on at different times.

2. The lighting and detection system according to claim 1, characterized in that The controller controls the white light emitting mechanism and the laser emitting mechanism to be turned on at different times, including: The laser emitting mechanism and the white light emitting mechanism are controlled to work in an alternating opening cycle. In each alternating opening cycle, the laser emitting mechanism is controlled to be turned on for a first preset time and then turned off, and the white light emitting mechanism is controlled to be turned on for a second preset time and then turned off.

3. The lighting and detection system according to claim 1, characterized in that The controller is used to control the working state of the white light emitting mechanism and the laser emitting mechanism according to the position of the scanning light beam, and also includes: According to the light intensity partition where the scanning position of the scanning light beam is located, the light intensity of the white light emitting mechanism is adjusted according to the light intensity value corresponding to the light intensity partition; wherein the headlight field of view area includes a plurality of light intensity partitions, and the light intensity values ​​of white light in different light intensity partitions are different.

4. The lighting and detection system according to claim 3, characterized in that The step of adjusting the intensity of the white light according to the intensity value corresponding to the light intensity partition at the scanning position of the scanning light beam comprises: In each light intensity zone, the light emission frequency of the white light emitting mechanism in the light intensity zone is controlled according to the light intensity value corresponding to the light intensity zone.

5. The lighting and detection system according to claim 4, characterized in that The method of controlling the light emission frequency of the white light emitting mechanism in each light intensity zone according to the light intensity value corresponding to the light intensity zone comprises: For multiple scanning positions in each light intensity partition, the white light emitting mechanism is controlled to be turned on at some scanning positions, and the white light emitting mechanism is controlled to be turned off at some scanning positions to adjust the overall light intensity of the light intensity partition.

6. The lighting and detection system according to claim 3, characterized in that The step of adjusting the intensity of the white light according to the intensity value corresponding to the light intensity partition at the scanning position of the scanning light beam comprises: With respect to the light intensity value corresponding to each scanning position in each light intensity partition, the duty cycle of the white light emitting mechanism corresponding to each scanning position is controlled.

7. The lighting and detection system according to claim 1, characterized in that The illumination and detection system includes a plurality of light source components, and the scanning component includes a micro-electromechanical system MEMS.

8. The lighting and detection system according to claim 1, characterized in that The white light emitting mechanism comprises an infrared laser emitter, and the infrared laser emitter is used to provide infrared laser for the infrared blindness compensation camera of the vehicle.

9. The lighting and detection system according to claim 1, characterized in that The area to be detected in front of the vehicle also includes a laser radar field of view area, the headlight field of view area is included in the laser radar field of view area, and the controller is used to control the working state of the white light emitting mechanism and the laser emitting mechanism according to the position of the scanning light beam, and also includes: When the scanning position of the scanning light beam is located in an area within the field of view of the laser radar that does not overlap with the field of view of the headlight, the laser emitting mechanism is controlled to turn on.

10. A smart device, characterized in that: The smart device comprises the lighting and detection system according to any one of claims 1 to 9.

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