WO2016179980A1 - 车载投影方法及系统 - Google Patents

车载投影方法及系统 Download PDF

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Publication number
WO2016179980A1
WO2016179980A1 PCT/CN2015/093877 CN2015093877W WO2016179980A1 WO 2016179980 A1 WO2016179980 A1 WO 2016179980A1 CN 2015093877 W CN2015093877 W CN 2015093877W WO 2016179980 A1 WO2016179980 A1 WO 2016179980A1
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WIPO (PCT)
Prior art keywords
parameter
vehicle
navigation
navigation data
laser
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PCT/CN2015/093877
Other languages
English (en)
French (fr)
Inventor
张宇
杜玙璠
陆小勇
Original Assignee
京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/023,303 priority Critical patent/US20170160094A1/en
Priority to EP15839096.3A priority patent/EP3296696A4/en
Publication of WO2016179980A1 publication Critical patent/WO2016179980A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/365—Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3155—Modulator illumination systems for controlling the light source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3161—Modulator illumination systems using laser light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/317—Convergence or focusing systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3185—Geometric adjustment, e.g. keystone or convergence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3188—Scale or resolution adjustment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3191—Testing thereof
    • H04N9/3194—Testing thereof including sensor feedback
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16—Type of output information
    • B60K2360/166—Navigation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16—Type of output information
    • B60K2360/177—Augmented reality
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/333—Lasers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/334—Projection means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/77—Instrument locations other than the dashboard
    • B60K2360/797—Instrument locations other than the dashboard at the vehicle exterior
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/50—Projected symbol or information, e.g. onto the road or car body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/004—Arrangements for holding or mounting articles, not otherwise provided for characterised by position outside the vehicle

Definitions

  • Embodiments of the present invention relate to a vehicle-mounted projection method and system.
  • the functions of in-vehicle devices have become more and more, and the in-vehicle devices can not only realize the audio-visual function, but also realize the projection function.
  • the prior art provides an on-board projection technology for navigation, in which the navigation screen planned by the in-vehicle device can be projected onto the front windshield, thereby This allows the driver of the vehicle to shift the line of sight without having to look at the navigator, but to look directly at the windshield, thereby avoiding the danger due to line of sight transfer to some extent.
  • an embodiment of the present invention provides a vehicle-mounted projection method and system.
  • an in-vehicle projection system comprising: a transmission mode a block for receiving navigation data, a processing module for processing the navigation data to obtain a navigation screen, and a laser display device for projecting the navigation screen to a designated position on a road surface in front of the vehicle.
  • processing module is configured to adjust a screen display parameter of the navigation screen.
  • the screen display parameter includes at least one of a color parameter, a brightness parameter, a gray parameter, a contrast parameter, and a resolution parameter.
  • system further includes:
  • the detecting module is configured to detect an environment of the vehicle and send the detected environmental parameters to the processing module.
  • processing module is further configured to adjust a screen display parameter of the navigation screen according to the environment parameter.
  • the laser display device includes: a control module and at least one laser display unit, each laser display unit including a laser and a lens group;
  • the control module is configured to adjust a projection parameter of the at least one laser display unit according to a target display mode specified by a user;
  • the at least one laser display unit is configured to project the navigation screen on a designated position of the road surface in front of the vehicle according to the control of the control module.
  • the projection parameter includes at least one of an angle parameter, a position parameter, a brightness parameter, a projection focal length, and a color parameter of the laser display unit.
  • the laser is a red, green and blue trichromatic laser and/or a monochromatic laser.
  • the navigation data is navigation data transmitted by a wireless communication technology; or the navigation data is navigation data of a vehicle system in-vehicle navigation device.
  • system further includes:
  • a cooling module for cooling the laser display device.
  • a vehicle-mounted projection method comprising: receiving navigation data; processing the navigation data to obtain a navigation screen; and projecting the navigation screen to a designated position on a road surface in front of the vehicle.
  • processing the navigation data to obtain a navigation screen further includes:
  • the screen display parameter includes at least one of a color parameter, a brightness parameter, a gray parameter, a contrast parameter, and a resolution parameter.
  • the method further includes:
  • the external environment of the vehicle is detected, and the navigation data is processed based on the detected environmental parameters.
  • processing the navigation data based on the detected environmental parameters further includes:
  • the projecting the navigation screen to a designated position on the road surface in front of the vehicle further includes:
  • the projection parameter includes at least one of an angle parameter, a position parameter, a brightness parameter, a projection focal length, and a color parameter of the laser display unit.
  • the navigation data is navigation data transmitted by a wireless communication technology; or the navigation data is navigation data of a vehicle system in-vehicle navigation device.
  • a navigation screen of a vehicle can be projected onto a road surface in front of the vehicle, which is improved Visibility ensures projection.
  • FIG. 1 is a schematic structural diagram of a vehicle-mounted projection system according to an embodiment of the present invention.
  • FIG. 2A illustrates a projection effect of a driver's perspective in accordance with an embodiment of the present invention
  • FIG. 2B illustrates a top view projection effect in accordance with an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of another vehicle-mounted projection system according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a laser display device according to an embodiment of the present invention.
  • FIG. 5A is a schematic diagram of a mounting position of a laser display unit according to an embodiment of the present invention.
  • FIG. 5B is a schematic diagram of another laser display unit installation position according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a display area and a line of sight area according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of still another vehicle-mounted projection system according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a vehicle-mounted projection method according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a vehicle-mounted projection system according to an embodiment of the present invention.
  • the system may include: a transmission module 101, a processing module 102, and a laser display device 103;
  • the transmission module 101 is configured to receive navigation data; the processing module 102 is configured to process the navigation data to obtain a navigation screen; and the laser display device 103 is configured to project the navigation screen to a designated position on the road surface in front of the vehicle.
  • FIG. 2A illustrates a projection effect of a driver's angle of view according to an embodiment of the present invention.
  • 2B illustrates a top view projection effect in which the display area in front of the vehicle is the projected position of the navigation screen, in accordance with an embodiment of the present invention.
  • the navigation screen of the vehicle by projecting the navigation screen of the vehicle onto the road surface in front of the vehicle, the visibility is improved, and the projection effect is ensured.
  • the transmission module 101 can be a transceiver or a transmission interface.
  • the transmission module 101 can establish a connection with other devices to acquire data provided by other devices.
  • the transmission module 101 can establish a connection with a navigation server or the like on the Internet to receive navigation data transmitted by the navigation server through a transmission manner such as 3G, Wifi, or Bluetooth, or the transmission module 101 can also be navigated with the interior of the vehicle.
  • the device or data transceiver device establishes a connection to receive navigation data.
  • the navigation device inside the vehicle may be a navigator, and the data transceiving device may be an in-vehicle terminal or the like.
  • the processing module 102 can process the navigation data to obtain a navigation screen. among them, The image processing process may include processes such as navigation data encoding and decoding and screen display parameter adjustment, which are not described herein.
  • the processing module 102 is configured to adjust a screen display parameter of the navigation screen.
  • the picture display parameter includes at least one of a color parameter, a brightness parameter, a gray level parameter, a contrast parameter, and a resolution parameter.
  • the onboard projection system may further include a detection module 104 (shown in FIG. 3) for detecting an external environment of the vehicle and detecting the detected environmental parameters.
  • the environmental parameters refer to parameters such as temperature, humidity, brightness, and front obstacle information.
  • the detection module 104 can be a sensor for detecting any of the above environmental parameters.
  • the processing module 102 is further configured to adjust a screen display parameter of the navigation screen according to the environment parameter.
  • the detecting module 104 can detect the brightness of the external environment. If the brightness of the external environment is low, the processing module 102 can improve the brightness of the navigation screen or change the color parameter of the picture from black and white to color, so that the subsequent projection is obtained. The contrast of the picture is large and the recognition is high.
  • the processing module 102 can adjust parameters such as the brightness of the navigation screen, so that the distortion of the navigation screen is small. Does not affect the visual effect of the navigation screen.
  • the above adjustment is to ensure the projection effect.
  • the automatic adjustment mode can be set, so that the processing module 102 can adjust the navigation screen according to the environmental parameters acquired by the detection module 104 in real time to achieve a better projection. effect.
  • the detection module 104 can also be based on the control sent by the laser display device 103.
  • the command is executed to detect the environmental parameters, and the detected environmental data is sent to the processing module 102 for data processing.
  • Laser display device 103
  • the laser display device 103 may include a control module 103A and at least one laser display unit 103B, each laser display unit 103B may be composed of a laser and a lens group; wherein the control module 103A is configured to display according to a user-specified target a mode of adjusting a projection parameter of the at least one laser display unit 103B; the at least one laser display unit 103B for projecting the navigation screen at a designated position on a road surface in front of the vehicle according to the control of the control module 103A.
  • the mounting position of the laser display unit 103B may be located under the front lights of the vehicle as shown in FIG. 5A.
  • the laser display unit 103B can also be integrated with the illumination system of the vehicle.
  • the laser display unit can be integrated into the front light of the vehicle.
  • the specific installation manner can be side-by-side installation or embedded installation, and the embodiment of the present invention is not limited thereto.
  • the laser display unit can be mounted in the front lamp.
  • the target display mode may be any mode provided by the onboard projection system.
  • the display mode carried in the display mode setting command can be acquired as the target display mode by receiving the display mode setting instruction of the user.
  • the onboard projection system may further include a setting interface that provides selection of a plurality of display modes, and determines a target display mode according to a user's selection.
  • the plurality of display modes may include: a strong light mode (ie, a mode with a large contrast contrast), a night mode (ie, a mode in which the ambient brightness is low), a high temperature mode (ie, a mode in which the ambient temperature is high), and a low temperature mode ( That is, the mode in which the ambient temperature is low, the rain and snow mode (that is, the mode in which the external environment has accumulated water or snow), the mode based on different projection positions, and the like, and the embodiment of the present invention is not limited thereto.
  • a strong light mode ie, a mode with a large contrast contrast
  • a night mode ie, a mode in which the ambient brightness is low
  • a high temperature mode ie, a mode in which the ambient temperature is high
  • a low temperature mode That is, the mode in which the ambient temperature is low, the rain and snow mode (that is, the mode in which the external environment has accumulated water or snow), the mode based on different projection positions, and the like, and
  • the projection parameter includes at least one of an angle parameter, a position parameter, a brightness parameter, a projection focal length, and a color parameter of the laser display unit.
  • the laser is a red, green and blue trichromatic laser and/or a monochromatic laser.
  • the control module 103A when the user selects the glare mode on the setting interface, the control module 103A receives the glare mode command, can adjust the color parameter of the laser display unit, or turn off the red, green, and blue color lasers in the laser display unit and start
  • the monochromatic laser is such that the laser projection can be changed from color to monochrome, thereby forming interference fringes by the interference of the light source, increasing the contrast of the projection to provide a clearer projection picture.
  • the control module 103A receives the night mode command.
  • the setting interface may provide the user with multiple color schemes, so that the user selects the one that is of interest to the user.
  • the color scheme is such that the laser display unit is controlled by the control module 103A for projection.
  • the user when the user selects the adjustment mode on the setting interface, it can be considered that the user wants to set the projection position of the navigation screen, and the selection of the adjustment mode may be triggered by the operation of the user adjusting the seat height. Since the line of sight of different height users is different, as shown in FIG. 6 , in order to ensure that all the user can see all the projection display areas, the line of sight of the user and the projection display area at least partially overlap each other.
  • the adjustment mode can be Providing an adjustment mode of the projection position, for example, the control module 103A may estimate the line of sight of the user according to the adjustment parameter of the current seat height, thereby adjusting the angle parameter, the position parameter, and the projection focal length of the laser display unit according to the line of sight range thereof, This ensures that all projectors of different heights can see the entire projection area, which increases the flexibility of the projection system.
  • the line of sight of the user is estimated, so that the process of adjusting the angle parameter, the position parameter and the projection focal length of the laser display unit according to the line of sight range thereof can be pre-processed.
  • the implementation of the estimation algorithm is of course implemented by querying the correspondence table pre-stored in the control module, and the embodiment of the invention is not limited thereto.
  • the on-board projection system may further include: a cooling module 105 (shown in FIG. 7) for cooling the laser display device 103.
  • the cooling module 105 can cool the laser display unit in the laser display device according to the control of the control module 103A in the laser display device 103.
  • the cooling module 105 may be a separate physical entity, such as a cooling device such as a fan.
  • the cooling module 105 may also be implemented based on a water cooling system inside the vehicle or integrated in a water cooling system inside the vehicle.
  • a vehicle-mounted projection method is further provided, which includes the following steps:
  • Step 201 Receive navigation data.
  • Step 202 Process the navigation data to obtain a navigation screen.
  • step 203 the navigation screen is projected onto a designated position on the road surface in front of the vehicle.
  • the navigation data is navigation data transmitted by a wireless communication technology; or the navigation data is navigation data of a vehicle system in-vehicle navigation device.
  • Step 202 may further include: adjusting a screen display parameter of the navigation screen, and the screen display parameter includes at least one of a color parameter, a brightness parameter, a gray level parameter, a contrast parameter, and a resolution parameter.
  • Step 203 may further include: adjusting a projection parameter according to a target display mode specified by the user, wherein the projection parameter includes at least one of an angle parameter, a position parameter, a brightness parameter, a projection focal length, and a color parameter of the laser display unit.
  • a vehicle-mounted projection method may further include: a detecting step, for a vehicle
  • the external environment detects and processes the navigation data based on the detected environmental parameters.
  • the processing the navigation data based on the detected environmental parameters may further include: adjusting a screen display parameter of the navigation screen according to the environmental parameter.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Instrument Panels (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Projection Apparatus (AREA)

Abstract

一种车载投影方法及系统，所述系统包括：传输模块（101）、处理模块（102）和激光显示装置（103），其中，传输模块（101）用于接收导航数据；处理模块（102）用于对所述导航数据进行处理，得到导航画面；激光显示装置（103）用于将所述导航画面投射至车辆前方路面的指定位置上。通过将车辆的导航画面通过激光显示方式投影至车辆前方路面，提高了可视性，保证了投影效果。

Description

车载投影方法及系统
本申请要求于2015年5月11日递交的中国专利申请第201510236542.3号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本发明的实施例涉及一种车载投影方法及系统。
背景技术
近些年来，随着汽车电子迅速发展，车载设备的功能越来越多，通过车载设备不仅能够实现影音功能，甚至还可以实现投影功能。例如，为了对车辆行驶进行直观的导航，现有技术提供了一种用于导航的车载投影技术，在该技术中，可以通过将车载设备所规划的导航画面投影至前挡风玻璃上，从而使得车辆驾驶员能够不用为了查看导航仪而转移视线，而是直视挡风玻璃即可，从而在一定程度上避免了由于视线转移而造成的危险。但是，在该种车载投影技术中，由于导航画面的载体是挡风玻璃，而挡风玻璃的可视性很容易受到车内车外光线差异的影响，且由于其本身是透明质地，因此，该种车载投影技术在可视性上很不稳定，且画面的对比度低，投影效果比较差。
发明内容
为了解决现有技术的问题，本发明实施例提供了一种车载投影方法及系统。
根据本发明的一方面，提供了一种车载投影系统，所述系统包括：传输模 块，用于接收导航数据；处理模块，用于对所述导航数据进行处理，得到导航画面；激光显示装置，用于将所述导航画面投射至车辆前方路面的指定位置上。
进一步地，所述处理模块用于调整所述导航画面的画面显示参数。
进一步地，所述画面显示参数包括色彩参数、亮度参数、灰度参数、对比度参数以及分辨率参数中的至少一项。
进一步地，所述系统还包括：
探测模块，用于对车辆的外界环境进行探测，并将探测到的环境参数发送至所述处理模块。
进一步地，所述处理模块还用于根据所述环境参数，调整所述导航画面的画面显示参数。
进一步地，所述激光显示装置包括：控制模块和至少一个激光显示单元，每个激光显示单元包括激光器和透镜组；
其中，所述控制模块用于根据用户指定的目标显示模式，调整所述至少一个激光显示单元的投影参数；
所述至少一个激光显示单元，用于根据所述控制模块的控制，将所述导航画面投射车辆前方路面的指定位置上。
进一步地，所述投影参数包括激光显示单元的角度参数、位置参数、亮度参数、投影焦距和色彩参数中至少一项。
进一步地，所述激光器为红绿蓝三色激光器和/或单色激光器。
进一步地，所述导航数据为通过无线通信技术传输的导航数据；或者，所述导航数据为车辆系统车内导航仪的导航数据。
进一步地，所述系统还包括：
冷却模块，用于对所述激光显示装置进行冷却。
根据本发明的另一方面，还提供了一种车载投影方法，包括：接收导航数据；对所述导航数据进行处理，得到导航画面；将所述导航画面投射至车辆前方路面的指定位置上。
进一步地，所述对所述导航数据进行处理，得到导航画面进一步包括：
调整所述导航画面的画面显示参数。
进一步地，所述画面显示参数包括色彩参数、亮度参数、灰度参数、对比度参数以及分辨率参数中的至少一项。
进一步地，所述方法进一步包括：
对车辆的外界环境进行探测，并基于探测到的环境参数对所述导航数据进行处理。
进一步地，所述基于探测到的环境参数对所述导航数据进行处理进一步包括：
根据所述环境参数，调整所述导航画面的画面显示参数。
进一步地，所述将所述导航画面投射至车辆前方路面的指定位置上进一步包括：
根据用户指定的目标显示模式，调整投影参数。
进一步地，所述投影参数包括激光显示单元的角度参数、位置参数、亮度参数、投影焦距和色彩参数中至少一项。
进一步地，所述导航数据为通过无线通信技术传输的导航数据；或者，所述导航数据为车辆系统车内导航仪的导航数据。
根据本发明的实施例，可将车辆的导航画面投影至车辆前方路面，提高了 可视性，保证了投影效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种车载投影系统的结构示意图；
图2A示出了根据本发明实施例的驾驶员视角的投射效果；
图2B示出了根据本发明实施例的俯视的投射效果；
图3是本发明实施例提供的另一种车载投影系统的结构示意图；
图4是本发明实施例提供的激光显示装置的结构示意图；
图5A是本发明实施例提供的一种激光显示单元安装位置的示意图；
图5B是本发明实施例提供的另一种激光显示单元安装位置的示意图；
图6是本发明实施例提供的一种显示区域和视线区域的示意图；
图7是本发明实施例提供的又一种车载投影系统的结构示意图；以及
图8是本发明实施例提供的一种车载投影方法的流程图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发 明的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他的实施例，都属于本发明保护的范围。
图1是本发明实施例提供的一种车载投影系统的结构示意图。参见图1，该系统可包括：传输模块101、处理模块102和激光显示装置103；
其中，传输模块101用于接收导航数据；处理模块102用于对该导航数据进行处理，得到导航画面；激光显示装置103用于将该导航画面投射至车辆前方路面的指定位置上。
如图2A所示，该图2A示出了根据本发明实施例的驾驶员视角的投射效果。图2B示出了根据本发明实施例的俯视的投射效果，其中，车辆前的显示区域即为导航画面的投影位置。
根据本发明实施例，通过将车辆的导航画面投影至车辆前方路面，提高了可视性，保证了投影效果。
下面对各个组成部分的功能进行详细介绍：
传输模块101：
该传输模块101可以是收发器或传输接口。该传输模块101可以与其他设备建立连接，从而获取由其他设备提供的数据。如，该传输模块101可以通过与互联网上的导航服务器等建立连接，以通过3G、Wifi或者蓝牙等传输方式接收由导航服务器发送的导航数据，或者，该传输模块101还可以与车辆内部的导航设备或数据收发设备建立连接，从而接收导航数据。该车辆内部的导航设备可以为导航仪，数据收发设备可以为车载终端等。
处理模块102：
该处理模块102可以根据对该导航数据进行处理，得到导航画面。其中， 图像处理过程可以包括导航数据编解码以及画面显示参数调整等过程，在此不作赘述。
进一步地，该处理模块102用于调整导航画面的画面显示参数。所述画面显示参数包括色彩参数、亮度参数、灰度参数、对比度参数以及分辨率参数中的至少一项。
在本发明提供的另一实施例中，该车载投影系统还可以包括探测模块104(如图3所示)，该探测模块104用于对车辆的外界环境进行探测，并将探测到的环境参数发送至所述处理模块。其中，环境参数是指温度、湿度、亮度、前方障碍物信息等参数。相应地，探测模块104可以为用于探测上述任一种环境参数的传感器。
基于探测模块104所得到的环境参数，该处理模块102还可以用于根据所述环境参数，调整所述导航画面的画面显示参数。
例如，该探测模块104可以探测得到外界环境的亮度，如果外界环境的亮度较低，则处理模块102可以提高导航画面的亮度或将画面的色彩参数从黑白改为彩色，以使得后续投影所得到的画面对比度较大，可辨识度高。
又如，如果探测模块104探测得到外界环境的温度较高，较高的地表温度容易使得投影效果失真，因此，处理模块102可以调整导航画面的亮度等参数，使得导航画面的失真度较小，不影响导航画面的视觉效果。
当然，上述调整均是为了保证投影效果，在实际场景中，可以设置自动调整模式，使得处理模块102能够实时根据探测模块104所获取到的环境参数对导航画面进行调整，以达到更好的投影效果。
需要说明的是，该探测模块104还可以基于激光显示装置103所发送的控 制指令，进行环境参数的探测，并将探测得到的环境数据发送至处理模块102进行数据处理。
激光显示装置103：
参见图4，该激光显示装置103可以包括控制模块103A和至少一个激光显示单元103B，每个激光显示单元103B可由激光器和透镜组组成；其中，所述控制模块103A用于根据用户指定的目标显示模式，调整所述至少一个激光显示单元103B的投影参数；所述至少一个激光显示单元103B用于根据所述控制模块103A的控制，将所述导航画面投射车辆前方路面的指定位置上。
可选地，该激光显示单元103B的安装位置可以位于车辆的前车灯下面，如图5A所示。当然，该激光显示单元103B还可以与车辆的照明系统整合，如该激光显示单元可以集成于车辆的前车灯，具体安装方式可以为并排安装或嵌入式安装，本发明实施例不仅限于此，如图5B所示，该激光显示单元可以安装于前车灯内。
在本发明实施例中，目标显示模式可以是车载投影系统所提供的任一种模式。在车载投影系统中，可以通过接收用户的显示模式设置指令，将显示模式设置指令中所携带的显示模式获取为目标显示模式。例如，车载投影系统还可以包括设置界面，该设置界面上提供多个显示模式的选择，根据用户的选择，确定目标显示模式。该多个显示模式可以包括：强光模式(即投影对比度较大的模式)、夜晚模式(即外界环境亮度较低的模式)、高温模式(即外界环境温度较高的模式)、低温模式(即外界环境温度较低的模式)、雨雪天模式(即外界环境存在积水或者积雪的模式)以及基于不同投影位置的模式等等，本发明实施例不仅限于此。
其中，所述投影参数包括激光显示单元的角度参数、位置参数、亮度参数、投影焦距和色彩参数中至少一项。所述激光器为红绿蓝三色激光器和/或单色激光器。
例如，当用户在设置界面上选择了强光模式，则控制模块103A接收到该强光模式指令，可以调整激光显示单元的色彩参数，或关闭激光显示单元中的红绿蓝三色激光器并启动单色激光器，以使得激光投影可以从彩色变成单色，从而通过光源的干涉作用，形成干涉条纹，增加投影对比度，以便提供更清晰的投影画面。
又如，当用户在设置界面上选择了夜晚模式，则控制模块103A接收到该夜晚模式指令，在夜晚模式下，设置界面可以为用户提供多个色彩方案，以使得用户从中选择自己感兴趣的色彩方案，从而由控制模块103A控制激光显示单元进行投影。
再如，当用户在设置界面上选择调整模式时，可以认为用户想要设置导航画面的投影位置，该调整模式的选择可以是由用户调整座椅高度的操作触发的。由于不同高度用户的视线范围不同，如图6所示，为了保证不同高度用户均可以看到全部投影显示区域，可将用户的视线区域与投影显示区域至少部分地重合，因此，该调整模式可以提供投影位置的调整模式，如控制模块103A可以根据当前座椅高度的调整参数，估计该用户的视线范围，从而根据其视线范围，调整激光显示单元的角度参数、位置参数以及投影焦距等信息，从而保证不同高度的司机都可以看到全部投影区域，提高了投影系统的灵活性。其中，根据当前座椅高度的调整参数，估计该用户的视线范围，从而根据其视线范围，调整激光显示单元的角度参数、位置参数以及投影焦距等信息的过程可以通过预 设估计算法实现，当然也可以通过查询预先保存在控制模块中的对应关系表实现，本发明实施例不仅限于此。
进一步地，在本发明提供的另一实施例中，该车载投影系统还可以包括：冷却模块105(如图7所示)，用于对所述激光显示装置103进行冷却。该冷却模块105可以根据激光显示装置103中的控制模块103A的控制，对激光显示装置中的激光显示单元进行冷却。需要说明的是，该冷却模块105可以是单独存在的物理实体，如风扇等冷却设备，当然，该冷却模块105还可以基于车辆内部的水冷系统实现，或集成在车辆内部的水冷系统中。
如图8所示，根据本发明的一实施例，还提供了一种车载投影方法，其包括以下步骤：
步骤201，接收导航数据；
步骤202，对所述导航数据进行处理，得到导航画面；
步骤203，将所述导航画面投射至车辆前方路面的指定位置上。
步骤201中，所述导航数据为通过无线通信技术传输的导航数据；或者，所述导航数据为车辆系统车内导航仪的导航数据。
步骤202可进一步包括：调整所述导航画面的画面显示参数，并且所述画面显示参数包括色彩参数、亮度参数、灰度参数、对比度参数以及分辨率参数中的至少一项。
步骤203可进一步包括：根据用户指定的目标显示模式，调整投影参数，其中，所述投影参数包括激光显示单元的角度参数、位置参数、亮度参数、投影焦距和色彩参数中至少一项。
根据本发明的实施例，一种车载投影方法还可包括：探测步骤，对车辆的 外界环境进行探测，并基于探测到的环境参数对所述导航数据进行处理。所述基于探测到的环境参数对所述导航数据进行处理可进一步包括：根据所述环境参数，调整所述导航画面的画面显示参数。
本领域技术人员不难理解，虽然上述步骤按照特定的次序记载，但是各个步骤的执行次序并非仅限于此，它们之间的执行次序可以互换，或者也可以同时执行一个或者多个上述步骤。上述所有可选技术方案，可以采用任意结合形成本公开的可选实施例，在此不再一一赘述。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (18)

  1. 一种车载投影系统，包括：
    传输模块，用于接收导航数据；
    处理模块，用于对所述导航数据进行处理，得到导航画面；
    激光显示装置，用于将所述导航画面投射至车辆前方路面的指定位置上。
  2. 根据权利要求1所述的系统，其中，所述处理模块用于调整所述导航画面的画面显示参数。
  3. 根据权利要求2所述的系统，其中，所述画面显示参数包括色彩参数、亮度参数、灰度参数、对比度参数以及分辨率参数中的至少一项。
  4. 根据权利要求1所述的系统，其中，所述系统还包括：
    探测模块，用于对车辆的外界环境进行探测，并将探测到的环境参数发送至所述处理模块。
  5. 根据权利要求4所述的系统，其中，所述处理模块还用于根据所述环境参数，调整所述导航画面的画面显示参数。
  6. 根据权利要求1所述的系统，其中，所述激光显示装置包括：控制模块和至少一个激光显示单元，每个激光显示单元包括激光器和透镜组；
    其中，所述控制模块用于根据用户指定的目标显示模式，调整所述至少一个激光显示单元的投影参数；
    所述至少一个激光显示单元，用于根据所述控制模块的控制，将所述导航画面投射车辆前方路面的指定位置上。
  7. 根据权利要求6所述的系统，其中，所述投影参数包括激光显示单元的角度参数、位置参数、亮度参数、投影焦距和色彩参数中至少一项。
  8. 根据权利要求6所述的系统，其中，所述激光器为红绿蓝三色激光器和 /或单色激光器。
  9. 根据权利要求1所述的系统，其中，所述导航数据为通过无线通信技术传输的导航数据；或者，所述导航数据为车辆系统车内导航仪的导航数据。
  10. 根据权利要求1所述的系统，其中，所述系统还包括：
    冷却模块，用于对所述激光显示装置进行冷却。
  11. 一种车载投影方法，包括：
    接收导航数据；
    对所述导航数据进行处理，得到导航画面；
    将所述导航画面投射至车辆前方路面的指定位置上。
  12. 根据权利要求11所述的方法，其中，所述对所述导航数据进行处理，得到导航画面进一步包括：
    调整所述导航画面的画面显示参数。
  13. 根据权利要求12所述的方法，其中，所述画面显示参数包括色彩参数、亮度参数、灰度参数、对比度参数以及分辨率参数中的至少一项。
  14. 根据权利要求11所述的方法，其中，所述方法进一步包括：
    对车辆的外界环境进行探测，并基于探测到的环境参数对所述导航数据进行处理。
  15. 根据权利要求14所述的方法，其中，所述基于探测到的环境参数对所述导航数据进行处理进一步包括：
    根据所述环境参数，调整所述导航画面的画面显示参数。
  16. 根据权利要求11所述的方法，其中，所述将所述导航画面投射至车辆前方路面的指定位置上进一步包括：
    根据用户指定的目标显示模式，调整投影参数。
  17. 根据权利要求16所述的方法，其中，所述投影参数包括激光显示单元的角度参数、位置参数、亮度参数、投影焦距和色彩参数中至少一项。
  18. 根据权利要求11所述的方法，其中，所述导航数据为通过无线通信技术传输的导航数据；或者，所述导航数据为车辆系统车内导航仪的导航数据。
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