CN112907957A - Tunnel portal road condition display method and device and terminal equipment - Google Patents
Tunnel portal road condition display method and device and terminal equipment Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
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- 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
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- 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
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/22—Display screens
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- 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
- B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/09623—Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle
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- 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
- B60K2360/18—Information management
- B60K2360/191—Highlight information
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Abstract
The invention is suitable for the technical field of traffic safety, and provides a method, a device and a terminal device for displaying road conditions at a tunnel portal, wherein the method comprises the following steps: acquiring a driving route distance between a target vehicle and a target tunnel portal; the target tunnel portal is the tunnel portal closest to the target vehicle; establishing a linear coordinate system by taking the target vehicle as an origin and taking the running direction of the target vehicle as a positive direction; taking a numerical value on a coordinate system corresponding to the distance of the driving route as a first monitoring numerical value; and if the first monitoring value is smaller than the first threshold value, acquiring a monitoring video corresponding to the target tunnel portal, controlling a vehicle-mounted display device of the target vehicle to display the monitoring video, and adjusting the brightness of the vehicle-mounted display device according to the first monitoring value. The method provided by the invention can display the road condition around the tunnel entrance according to the relative position of the vehicle and the tunnel entrance, thereby avoiding that a driver can not accurately master the road condition due to the brightness change of the environment when the vehicle enters and exits the tunnel, and improving the driving safety of the vehicle.
Description
Technical Field
The invention belongs to the technical field of traffic safety, and particularly relates to a tunnel portal road condition display method and device and terminal equipment.
Background
With the continuous extension of the road network, the excavation of the tunnel becomes an important means for shortening the driving mileage and improving the road transportation efficiency. However, when the vehicle enters or exits the tunnel, the driver is difficult to adapt to the change of the ambient brightness in a short time, and certain potential safety hazards exist. For example, when the vehicle exits a dark tunnel, a "white hole" effect appears in the driver's field of view, and when the vehicle enters the tunnel, a "black hole" effect appears in the driver's field of view.
In order to reduce the accident of vehicles at the tunnel entrance, the current commonly used method is to set stronger light at the tunnel entrance or a section of transition area at the tunnel entrance, however, because the brightness difference between the inside and the outside of the tunnel is too large, the existing method has poor effect on improving the visual field definition of drivers.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for displaying a road condition at a tunnel portal, and a terminal device, so as to solve the problem in the prior art that a driver at the tunnel portal has an unclear view due to a change in brightness of an external environment.
A first aspect of an embodiment of the present invention provides a method for displaying road conditions at a tunnel portal, including:
acquiring a driving route distance between a target vehicle and a target tunnel portal; the target tunnel portal is the tunnel portal closest to the target vehicle;
establishing a linear coordinate system by taking the target vehicle as an origin and taking the running direction of the target vehicle as a positive direction; taking a value on the linear coordinate system corresponding to the distance of the driving route as a first monitoring value;
and if the first monitoring value is smaller than a first threshold value, acquiring a monitoring video corresponding to the target tunnel portal, controlling a vehicle-mounted display device of the target vehicle to display the monitoring video, and adjusting the brightness of the vehicle-mounted display device according to the first monitoring value at the current moment.
A second aspect of the embodiments of the present invention provides a tunnel portal road condition display device, including:
the driving route distance obtaining module is used for obtaining the driving route distance between the target vehicle and the target tunnel portal; the target tunnel portal is the tunnel portal closest to the target vehicle;
the first monitoring value acquisition module is used for establishing a linear coordinate system by taking the target vehicle as an origin and taking the running direction of the target vehicle as a positive direction; taking a value on the linear coordinate system corresponding to the distance of the driving route as a first monitoring value;
and the display control module is used for acquiring the monitoring video corresponding to the target tunnel portal if the first monitoring value is smaller than a first threshold value, controlling a vehicle-mounted display device of the target vehicle to display the monitoring video, and adjusting the brightness of the vehicle-mounted display device according to the first monitoring value at the current moment.
A third aspect of the embodiments of the present invention provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method when executing the computer program.
A fourth aspect of embodiments of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method as described above.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: the embodiment of the invention provides a method for displaying road conditions at a tunnel portal, which comprises the following steps: acquiring a driving route distance between a target vehicle and a target tunnel portal; the target tunnel portal is the tunnel portal closest to the target vehicle; establishing a linear coordinate system by taking the target vehicle as an origin and taking the running direction of the target vehicle as a positive direction; taking a numerical value on a coordinate system corresponding to the distance of the driving route as a first monitoring numerical value; and if the first monitoring value is smaller than the first threshold value, acquiring a monitoring video corresponding to the target tunnel portal, controlling a vehicle-mounted display device of the target vehicle to display the monitoring video, and adjusting the brightness of the vehicle-mounted display device according to the first monitoring value. The method provided by the invention can display the road condition around the tunnel entrance when the vehicle approaches the tunnel entrance, and avoid the situation that the driver can not accurately master the road condition due to the brightness change of the environment when the vehicle enters and exits the tunnel, thereby improving the safety of vehicle driving.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flow chart illustrating an implementation of a method for displaying road conditions at a tunnel portal according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a tunnel portal road condition display device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a flowchart illustrating an implementation of a method for displaying road conditions at a tunnel portal according to an embodiment of the present invention, and referring to fig. 1, the method for displaying road conditions at a tunnel portal according to the embodiment includes:
s101: acquiring a driving route distance between a target vehicle and a target tunnel portal; the target tunnel portal is the tunnel portal closest to the target vehicle;
in this embodiment, since most tunnels are located in mountainous areas with complex terrain and roads are tortuous, the straight-line distance between a tunnel portal and a target vehicle is often inconsistent with the distance to be traveled by the vehicle, and there may be a situation that the tunnel portal with a closer straight-line distance is farther from the target vehicle on an actual road and the tunnel portal with a farther straight-line distance is closer to the target vehicle on the actual road, so that the distance between the target vehicle and the tunnel portal needs to be taken as a basis for determining the target tunnel portal according to the travel route distance.
In the present embodiment, since the time when the target vehicle reaches the target tunnel portal depends on the actual length of the road, rather than the straight distance between the target vehicle and the target tunnel portal, the distance between the target vehicle and the target tunnel portal along the current road is acquired as the travel route distance.
S102: establishing a linear coordinate system by taking the target vehicle as an origin and taking the running direction of the target vehicle as a positive direction; taking a value on the linear coordinate system corresponding to the distance of the driving route as a first monitoring value;
in the present embodiment, a coordinate system is established according to the position and the traveling direction of the target vehicle, in preparation for subsequent distance calculation and determination.
In the present embodiment, the travel route distance is a scalar quantity representing only the length of the travel route distance between the target vehicle and the target tunnel portal, but depending on the relative positional relationship of the target vehicle and the target tunnel portal, it is possible to determine whether the target tunnel portal is forward or backward in the travel direction of the target vehicle, that is, whether the target vehicle has passed through the target tunnel portal.
In this embodiment, the target vehicle is located at an origin of a coordinate system, a forward direction of the target vehicle is a positive direction of the coordinate system, and when the target vehicle does not pass through the target tunnel portal, a value on a linear coordinate system corresponding to the distance of the traveling route is located at a positive half axis of the coordinate system, that is, the first monitored value is greater than zero; the first monitoring value is continuously reduced along with the approach of the target vehicle to the target tunnel entrance, and the length of the driving route distance is zero at the moment when the target vehicle passes through the target tunnel entrance, and the first monitoring value is also equal to zero; when the target vehicle passes through the target tunnel portal, the value on the linear coordinate system corresponding to the travel route distance is located on the negative half shaft of the coordinate system, namely the first monitoring value is smaller than zero, and the first monitoring value is smaller and smaller as the target vehicle is far away from the target tunnel portal.
S103: and if the first monitoring value is smaller than a first threshold value, acquiring a monitoring video corresponding to the target tunnel portal, controlling a vehicle-mounted display device of the target vehicle to display the monitoring video, and adjusting the brightness of the vehicle-mounted display device according to the first monitoring value at the current moment.
In this embodiment, the first threshold is greater than zero, and if the first monitored value is smaller than the first threshold, it indicates that the target vehicle has not passed through the target tunnel entrance yet and the travel route distance between the target vehicle and the target tunnel entrance is short.
In this embodiment, whether the target vehicle approaches the target tunnel entrance is determined according to a magnitude relationship between the first monitoring value and the first threshold, and if the target vehicle approaches the target tunnel entrance, the vehicle-mounted display device of the target vehicle is controlled to acquire a monitoring video from a Roadside facility (RSU). The method provided by the invention can display the road condition around the tunnel entrance according to the relative position of the vehicle and the tunnel entrance, avoid that a driver can not accurately master the road condition due to the brightness change of the environment when the vehicle enters and exits the tunnel, and improve the driving safety of the vehicle.
In an embodiment of the present invention, the acquiring a surveillance video corresponding to the target tunnel portal in S103 includes:
acquiring an initial monitoring video corresponding to the target tunnel portal;
and extracting an image of a preset target area in the initial monitoring video to be used as the monitoring video.
In order to avoid the interference of a driver by redundant information and reduce the data processing amount, the vehicle-mounted display device only displays the monitoring video image in the preset target area and rejects irrelevant areas in the monitoring video.
Optionally, the target area is an area of the road surface and a preset height above the road surface in the initial monitoring video.
Optionally, after the image of the preset target area in the initial monitoring video is provided, the method further includes:
and performing noise reduction processing and target identification on the acquired image, further eliminating irrelevant targets possibly interfering the driver in the monitoring video, and highlighting the vehicle target and the pedestrian target obtained by target identification.
Optionally, the vehicle target and the pedestrian target obtained by target recognition are simplified, for example, only the target contour is displayed without displaying details, so that a driver can conveniently and quickly grasp the conditions of the vehicle and the pedestrian at the tunnel portal without interference.
In an embodiment of the present invention, the adjusting the brightness of the vehicle-mounted display device according to the first monitored value at the current time in S103 includes:
judging the type of the target tunnel portal according to the first monitoring numerical value, and acquiring a monitoring distance-brightness corresponding relation corresponding to the type of the target tunnel portal; the categories of the target tunnel mouths comprise tunnel inlets and tunnel outlets;
and adjusting the brightness of the vehicle-mounted display device according to the monitoring distance-brightness corresponding relation between the first monitoring numerical value and the type of the target tunnel portal.
In this embodiment, the category of the target tunnel entrance includes a tunnel entrance and a tunnel exit, and the monitoring distance-brightness correspondence includes a monitoring distance-brightness correspondence corresponding to the tunnel entrance and a monitoring distance-brightness correspondence corresponding to the tunnel exit.
In the embodiment, whether the type of the target tunnel entrance is the tunnel entrance or the tunnel exit is determined according to the pre-stored map data, the current position of the target vehicle and the first monitoring value.
In this embodiment, as the relative position relationship between the target vehicle and the target tunnel portal changes, the brightness of the external environment where the target vehicle is located may significantly change, and in order to facilitate the driver to observe the surveillance video displayed by the vehicle display device, the brightness of the vehicle-mounted display device is adjusted according to the change in the distance between the target vehicle and the target tunnel portal.
Since the changes of the external environment brightness at the tunnel entrance and the tunnel exit are obviously different, the present embodiment determines the corresponding monitoring distance-brightness correspondence according to the category of the target tunnel entrance.
Alternatively, the monitored distance-luminance correspondence may be obtained by experiment.
In an embodiment of the present invention, after adjusting the brightness of the in-vehicle display device according to the first monitored value at the current time, the method further includes:
acquiring environment brightness data corresponding to the target vehicle;
and adjusting the brightness of the vehicle-mounted display device according to the environment brightness data and the environment data-brightness corresponding relation.
In one embodiment of the invention, since the first monitoring value may have an error, the brightness of the vehicle-mounted display device may also be adjusted according to the ambient brightness data of the external environment during the brightness adjustment.
Specifically, the ambient brightness data includes an ambient brightness change rate, when an absolute value of the ambient brightness change rate is greater than a preset change rate threshold, it is determined that the target vehicle just passes through the target tunnel portal, and at this time, the brightness of the vehicle-mounted display device needs to be adjusted in time according to the ambient data-brightness correspondence, so that the driver can still clearly observe the monitoring video in the vehicle-mounted display device when the brightness of the external environment is changed drastically.
Optionally, the environment data-brightness correspondence is obtained according to multiple tests.
In an embodiment of the present invention, after S102, the method further includes:
s104: if the first monitoring value is smaller than a second threshold value, controlling a vehicle-mounted voice device of the target vehicle to send out a voice prompt; the second threshold is larger than zero and smaller than the first threshold, and the voice prompt is used for prompting the target vehicle to approach the target tunnel portal.
In this embodiment, when the target vehicle approaches the target tunnel portal, the in-vehicle voice device may perform voice prompt to the driver, where the voice prompt can prompt the driver to see the tunnel portal ahead on the one hand, and can prompt the driver to observe the in-vehicle display device on the other hand.
In an embodiment of the present invention, after S103, the method further includes:
judging the magnitude of the first monitoring value and a third threshold value; the third threshold is less than zero;
and if the first monitoring value is smaller than the third threshold value, controlling a vehicle-mounted display device of the target vehicle to stop displaying the monitoring video.
In the present embodiment, the in-vehicle display device stops displaying the monitoring video after the target vehicle travels a further distance through the target tunnel portal.
In this embodiment, after the target vehicle has passed through the target tunnel portal, the value on the linear coordinate system corresponding to the travel route distance is at the negative half axis of the coordinate system, i.e. the first monitored value is less than zero. And when the first monitoring value is reduced to the third threshold value, the target vehicle passes through the target tunnel entrance and travels a distance, and the driver does not need to observe the road condition of the target tunnel entrance through the vehicle-mounted display device.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Referring to fig. 2, an embodiment of the present invention provides a tunnel entrance road condition display device 10, including:
a driving route distance obtaining module 110, configured to obtain a driving route distance between a target vehicle and a target tunnel entrance; the target tunnel portal is the tunnel portal closest to the target vehicle;
a first monitoring value obtaining module 120, configured to establish a linear coordinate system with the target vehicle as an origin and with a driving direction of the target vehicle as a positive direction; taking a value on the linear coordinate system corresponding to the distance of the driving route as a first monitoring value;
and the display control module 130 is configured to, if the first monitoring value is smaller than a first threshold, obtain a surveillance video corresponding to the target tunnel portal, control a vehicle-mounted display device of the target vehicle to display the surveillance video, and adjust brightness of the vehicle-mounted display device according to the first monitoring value at the current moment.
The tunnel entrance road condition display device provided by the invention can display the road condition around the tunnel entrance according to the relative position of the vehicle and the tunnel entrance, so that the situation that a driver cannot accurately master the road condition due to the brightness change of the environment when the vehicle enters and exits the tunnel is avoided, and the driving safety of the vehicle is improved.
In an embodiment of the present invention, the tunnel entrance road condition display device 10 further includes:
the voice control module is used for controlling a vehicle-mounted voice device of the target vehicle to send a voice prompt if the first monitoring value is smaller than a second threshold value; the second threshold is larger than zero and smaller than the first threshold, and the voice prompt is used for prompting the target vehicle to approach the target tunnel portal.
In one embodiment of the present invention, the display control module 130 includes:
a surveillance video acquiring unit, configured to acquire an initial surveillance video corresponding to the target tunnel portal; and extracting an image of a preset target area in the initial monitoring video to be used as the monitoring video.
In one embodiment of the present invention, the display control module 130 includes:
the tunnel portal type judging unit is used for judging the type of the target tunnel portal according to a first monitoring numerical value and acquiring a monitoring distance-brightness corresponding relation corresponding to the type of the target tunnel portal;
and the display brightness adjusting unit is used for adjusting the brightness of the vehicle-mounted display device according to the monitoring distance-brightness corresponding relation between the first monitoring numerical value and the type of the target tunnel portal.
In an embodiment of the invention, the brightness adjustment unit is further configured to:
acquiring environment brightness data corresponding to the target vehicle; and adjusting the brightness of the vehicle-mounted display device according to the environment brightness data and the environment data-brightness corresponding relation.
In an embodiment of the present invention, the tunnel portal road condition display device 10 further includes a display stop control module, configured to determine the first monitored value and a third threshold, where the third threshold is smaller than zero; and if the first monitoring value is smaller than the third threshold value, controlling a vehicle-mounted display device of the target vehicle to stop displaying the monitoring video.
Fig. 3 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 3, the terminal device 3 of this embodiment includes: a processor 30, a memory 31 and a computer program 32, such as a tunnel portal traffic display program, stored in said memory 31 and executable on said processor 30. The processor 30 executes the computer program 32 to implement the steps of the tunnel entrance road condition display method embodiments, such as S101 to S104 shown in fig. 1. Alternatively, the processor 30, when executing the computer program 32, implements the functions of each module/unit in the above-mentioned device embodiments, such as the functions of the modules 110 to 140 shown in fig. 2.
Illustratively, the computer program 32 may be partitioned into one or more modules/units that are stored in the memory 31 and executed by the processor 30 to implement the present invention. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 32 in the terminal device 3. For example, the computer program 32 may be divided into a coordinate system establishing module, a first distance acquiring module, a first monitoring value acquiring module, and a display control module (a module in a virtual device).
The terminal device 3 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 30, a memory 31. It will be understood by those skilled in the art that fig. 3 is only an example of the terminal device 3, and does not constitute a limitation to the terminal device 3, and may include more or less components than those shown, or combine some components, or different components, for example, the terminal device may also include an input-output device, a network access device, a bus, etc.
The Processor 30 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 31 may be an internal storage unit of the terminal device 3, such as a hard disk or a memory of the terminal device 3. The memory 31 may also be an external storage device of the terminal device 3, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 3. Further, the memory 31 may also include both an internal storage unit and an external storage device of the terminal device 3. The memory 31 is used for storing the computer program and other programs and data required by the terminal device. The memory 31 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A method for displaying road conditions at a tunnel portal is characterized by comprising the following steps:
acquiring a driving route distance between a target vehicle and a target tunnel portal; the target tunnel portal is the tunnel portal closest to the target vehicle;
establishing a linear coordinate system by taking the target vehicle as an origin and taking the running direction of the target vehicle as a positive direction; taking a value on the linear coordinate system corresponding to the distance of the driving route as a first monitoring value;
and if the first monitoring value is smaller than a first threshold value, acquiring a monitoring video corresponding to the target tunnel portal, controlling a vehicle-mounted display device of the target vehicle to display the monitoring video, and adjusting the brightness of the vehicle-mounted display device according to the first monitoring value at the current moment.
2. The method according to claim 1, wherein after the value on the linear coordinate system corresponding to the travel route distance is taken as a first monitored value, the method further comprises:
if the first monitoring value is smaller than a second threshold value, controlling a vehicle-mounted voice device of the target vehicle to send out a voice prompt; the second threshold is larger than zero and smaller than the first threshold, and the voice prompt is used for prompting the target vehicle to approach the target tunnel portal.
3. The method according to claim 1, wherein the obtaining of the surveillance video corresponding to the target tunnel portal comprises:
acquiring an initial monitoring video corresponding to the target tunnel portal;
and extracting an image of a preset target area in the initial monitoring video to be used as the monitoring video.
4. The method as claimed in claim 1, wherein the adjusting the brightness of the vehicle-mounted display device according to the first monitored value at the current time comprises:
judging the type of the target tunnel portal according to the first monitoring numerical value, and acquiring a monitoring distance-brightness corresponding relation corresponding to the type of the target tunnel portal; the categories of the target tunnel mouths comprise tunnel inlets and tunnel outlets;
and adjusting the brightness of the vehicle-mounted display device according to the monitoring distance-brightness corresponding relation between the first monitoring numerical value and the type of the target tunnel portal.
5. The method as claimed in claim 4, wherein after the brightness of the vehicle-mounted display device is adjusted according to the first monitored value at the current time, the method further comprises:
acquiring environment brightness data corresponding to the target vehicle;
and adjusting the brightness of the vehicle-mounted display device according to the environment brightness data and the environment data-brightness corresponding relation.
6. The method for displaying road conditions at tunnel portals according to any one of claims 1-5, wherein after adjusting the brightness of the vehicle-mounted display device according to the first monitored value at the current time, the method further comprises:
judging the magnitude of the first monitoring value and a third threshold value, wherein the third threshold value is smaller than zero;
and if the first monitoring value is smaller than the third threshold value, controlling a vehicle-mounted display device of the target vehicle to stop displaying the monitoring video.
7. A tunnel portal road condition display device is characterized by comprising:
the driving route distance obtaining module is used for obtaining the driving route distance between the target vehicle and the target tunnel portal; the target tunnel portal is the tunnel portal closest to the target vehicle;
the first monitoring value acquisition module is used for establishing a linear coordinate system by taking the target vehicle as an origin and taking the running direction of the target vehicle as a positive direction; taking a value on the linear coordinate system corresponding to the distance of the driving route as a first monitoring value;
and the display control module is used for acquiring the monitoring video corresponding to the target tunnel portal if the first monitoring value is smaller than a first threshold value, controlling a vehicle-mounted display device of the target vehicle to display the monitoring video, and adjusting the brightness of the vehicle-mounted display device according to the first monitoring value at the current moment.
8. The apparatus according to claim 7, further comprising:
the voice prompt control module is used for controlling a vehicle-mounted voice device of the target vehicle to send out a voice prompt if the first monitoring value is smaller than a second threshold value; the second threshold is larger than zero and smaller than the first threshold, and the voice prompt is used for prompting the target vehicle to approach the target tunnel portal.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
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| CN202110125841.5A CN112907957A (en) | 2021-01-29 | 2021-01-29 | Tunnel portal road condition display method and device and terminal equipment |
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