CN112885127B - Route prompting method and related device - Google Patents
Route prompting method and related device Download PDFInfo
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- CN112885127B CN112885127B CN201911212219.7A CN201911212219A CN112885127B CN 112885127 B CN112885127 B CN 112885127B CN 201911212219 A CN201911212219 A CN 201911212219A CN 112885127 B CN112885127 B CN 112885127B
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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
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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
- G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
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Abstract
The embodiment of the application discloses a route prompting method, which is applied to a route prompting system, wherein the route prompting system comprises a first device and a second device, and the method comprises the following steps: the second device acquires projection information transmitted by the first device, the projection information is generated by the first device according to control information of a first vehicle, the control information is an instruction for controlling the first vehicle to run, the projection information is used for indicating a predicted position of the first vehicle, the projection information is a pattern with a shape, and the first vehicle is a vehicle provided with the first device; the second device analyzes the projection information to obtain the position relation between the predicted position of the first vehicle and a second vehicle, wherein the second vehicle is a vehicle provided with the second device; the second device displays the predicted position of the first vehicle and the position relation of the second vehicle on a display screen of the second vehicle through the augmented reality AR technology.
Description
Technical Field
The present application relates to the field of electromagnetic waves, and in particular, to a method and a related apparatus for route prompting.
Background
With the development of economy and the improvement of people's standard of living, the trip of riding a car becomes people's first choice, because more and more people tend to drive the trip, the problem of traffic safety who follows is also used for solving.
In a road section where vehicles pass through complicated road conditions or a road section with a blind area in a visual field, such as a mountain road and a cross road of a curved plate, a whistle or a flashing light is usually generated to warn other vehicles to avoid or decelerate, surrounding vehicles presume the driving conditions of the vehicles coming and going according to the heard horn sound or the seen light conditions, and a response action is performed by combining experience.
In such a driving mode, many external factors may have a great influence on horn sound or light, for example, light emitted by a vehicle appears to be very weak under the condition of very strong sunlight irradiation; in downtown areas with complicated sounds, the horn sounds of a plurality of vehicles can interfere with the horn sound emitted by a target vehicle. Therefore, the warning of the target vehicle to other vehicles is disabled, the reaction time of a driver is shortened, and the driving safety is greatly reduced.
Disclosure of Invention
A first aspect of an embodiment of the present application provides a route prompting method, where the route prompting method is applied to a route prompting system, where the route prompting system includes a first device and a second device, and the method includes:
the second device acquires projection information transmitted by the first device, wherein the projection information is generated by the first device according to control information of a first vehicle, the control information is an instruction for controlling the first vehicle to run, the projection information is used for indicating a predicted position of the first vehicle, the projection information is a pattern with a shape, and the first vehicle is a vehicle provided with the first device;
the second device analyzes the projection information to obtain the position relation between the predicted position of the first vehicle and a second vehicle, wherein the second vehicle is a vehicle provided with the second device;
and the second device displays the predicted position of the first vehicle and the position relation of the second vehicle on a display screen of the second vehicle through an Augmented Reality (AR) technology.
Optionally, the analyzing, by the second device, the projected information to obtain a position relationship between the predicted position of the first vehicle and the second vehicle includes:
the second device determines an included angle between the light of the projection information and a horizontal plane according to the projection information;
the second device calculates a detected distance between the predicted position of the first vehicle and the second vehicle based on the angle and a distance from the second device to a horizontal plane.
Optionally, the method further includes:
and the second device sends feedback information to the first device, wherein the feedback information is used for indicating the moving speed and the detection distance of the second vehicle.
Optionally, the shape of the pattern is a code, and the method further includes:
and the second device identifies the identity information of the first vehicle according to the code.
A second aspect of the embodiments of the present application provides a route prompting method, where the route prompting method is applied to a route prompting system, where the route prompting system includes a first device and a second device, and the method includes:
the method comprises the steps that a first device obtains control information of a first vehicle, wherein the control information is a driving instruction used for controlling the first vehicle, and the first vehicle is a vehicle provided with the first device;
if the state of the first vehicle meets a target condition, the first device generates projection information according to the control information, the projection information is used for indicating a predicted position of the first vehicle, and the projection information is a pattern with a shape;
the first device sends the projection information to the second device.
Optionally, the shape of the pattern is a code, and the code is used for indicating the identity information of the first vehicle.
Optionally, the method further includes:
the first device acquires feedback information sent by the second device, wherein the feedback information is used for indicating the moving speed and the detection distance of the second vehicle, and the detection distance is the distance between the predicted position of the first vehicle and the second vehicle.
Optionally, the target condition includes that there is no other vehicle in front of the first vehicle, the first vehicle is located at a t-junction, the speed of the first vehicle is lower than a preset threshold and/or there is no signal lamp in front of the first vehicle.
A third aspect of an embodiment of the present application provides a second device, where the second device is applied to a route guidance system, and the second device includes:
an acquisition unit configured to acquire projection information transmitted by a first device, the projection information being generated by the first device according to control information of a first vehicle, the control information being a traveling instruction for controlling the first vehicle, the projection information being a predicted position of the first vehicle, the projection information being a pattern having a shape, the first vehicle being a vehicle on which the first device is mounted;
an analysis unit configured to analyze the projection information to obtain a positional relationship between a predicted position of the first vehicle and a second vehicle, where the second vehicle is a vehicle to which the second device is mounted;
and the display unit is used for displaying the position relation between the predicted position of the first vehicle and the second vehicle on a display screen of the second vehicle through an Augmented Reality (AR) technology.
Optionally, the parsing unit is specifically configured to:
determining an included angle between the light of the projection information and a horizontal plane according to the projection information;
and calculating the detection distance between the predicted position of the first vehicle and the second vehicle according to the included angle and the distance from the second device to the horizontal plane.
Optionally, the second apparatus further includes:
a sending unit, configured to send feedback information to the first device, where the feedback information is used to indicate a moving speed of the second vehicle and the detection distance.
Optionally, the shape of the pattern is a code, and the second apparatus further includes:
and the identification unit is used for identifying the identity information of the first vehicle according to the code.
A fourth aspect of the present embodiment provides a first apparatus, where the first apparatus is applied to a route guidance system, and the first apparatus includes:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring control information of a first vehicle, the control information is a driving instruction for controlling the first vehicle, and the first vehicle is a vehicle provided with a first device;
a generation unit configured to generate projection information according to the control information if a state of the first vehicle satisfies a target condition, the projection information indicating a predicted position of the first vehicle, the projection information being a pattern having a shape;
a sending unit, configured to send the projection information to the second device.
Optionally, the shape of the pattern is a code, and the code is used for indicating the identity information of the first vehicle.
Optionally, the obtaining unit is further configured to obtain feedback information sent by the second device, where the feedback information is used to indicate a moving speed and a detection distance of the second vehicle, and the detection distance is a distance between the predicted position of the first vehicle and the second vehicle.
Optionally, the target condition includes that there is no other vehicle in front of the first vehicle, the first vehicle is located at a t-junction, the speed of the first vehicle is lower than a preset threshold and/or there is no signal lamp in front of the first vehicle.
In this embodiment, the route guidance method is applied to a route guidance system, where the route guidance system includes a first device and a second device, and the second device may obtain projection information transmitted by the first device, where the projection information is used to indicate a predicted position of a first vehicle, where the first vehicle is a vehicle mounted with the first device, the second vehicle is a vehicle mounted with the second device, and then the second device analyzes the projection information to obtain a positional relationship between the predicted position of the first vehicle and the second vehicle, and then the second device displays the positional relationship between the predicted position of the first vehicle and the second vehicle on a display screen of the second vehicle through an AR technology. Through the mode, the second vehicle where the second device is located can know the following driving track of the first vehicle where the first device is located through the projection information transmitted by the first device and display the driving track on the display screen of the second vehicle, and the visual and visual display mode is helpful for the second vehicle to predict the driving dynamics of the first vehicle in advance, make a response measure as soon as possible and reduce the collision risk.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a route prompting method in an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating the calculation of the detection distance according to the embodiment of the present application;
FIG. 3 is a schematic diagram of another embodiment of a route prompting method in the embodiment of the present application;
fig. 4 is a schematic view of a scenario of a route prompting method in an embodiment of the present application;
fig. 5 is a schematic view of another scenario of a route prompting method in the embodiment of the present application;
FIG. 6 is a schematic diagram of a second apparatus according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a first apparatus in an embodiment of the present application.
Detailed Description
The embodiment of the application provides a route prompting method, which is applied to a route prompting system, wherein the route prompting system comprises a first device and a second device, a second vehicle where the second device is located can know the following driving track of the first vehicle where the first device is located through projection information transmitted by the first device and display the driving track on a display screen of the second vehicle, and the visual and vivid display mode is beneficial to the second vehicle to predict the driving dynamics of the first vehicle in advance, make a response measure as early as possible and reduce the collision risk.
The route prompting method in the embodiment of the application is realized by taking infrared light transmission information as a basic principle. The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, a route prompting method according to an embodiment of the present invention includes:
in the implementation of the present application, a vehicle in which the first device is located is referred to as a vehicle a (i.e., a first vehicle), and a vehicle in which the second device is located is referred to as a vehicle B (i.e., a second vehicle).
101. The second device acquires projection information transmitted by the first device, wherein the projection information is generated by the first device according to control information of the first vehicle, the projection information is used for indicating a predicted position of the first vehicle, and the projection information is a pattern with a shape.
The first device in the embodiment of the application is responsible for generating the control information of the first vehicle into the projection information, and the projection information is used for indicating the driving position of the vehicle where the first device is located, namely the first vehicle, in a future period of time. The pattern displayed by the projection information can be a pattern with a certain size, and the specific shape can also be a line shape or a block shape.
It should be noted that the projection information is generally emitted in the form of invisible light, so that the normal driving field of vision of the driver is prevented from being interfered by the projection information, and it is understood that the second device for acquiring the projection information is provided with a module for identifying the invisible light. Specifically, the invisible light may be infrared rays or laser lines.
It should be noted that the projection information may be a pattern of a shape of a code, such as a two-dimensional code, and the code may indicate the identity information of the first vehicle, so that the second device may also know the identity information of the first vehicle by analyzing the projection information.
102. The second device analyzes the projection information to obtain a positional relationship between the predicted position of the first vehicle and a second vehicle, the second vehicle being a vehicle to which the second device is mounted.
After receiving the projection information, the second device can know the driving position of the first vehicle at the next time through the area where the projection information is located, and can know the position relation between the predicted position and the second vehicle through calculation.
Specifically, referring to fig. 2, the second device may first determine an angle (angle a) between a light ray (a light ray emitted from the light spot area to the vehicle) of the projection information and a horizontal plane according to the projection information (the light spot area shown in fig. 2), and then the second device may calculate a detection distance (a distance from the light spot area to the vehicle) between the predicted position of the first vehicle and the second vehicle according to the angle and a distance (height h) from the second device to the horizontal plane.
The second device receives infrared light carrying projection information, photoelectric conversion needs to be carried out on the infrared light, the infrared light is converted into an electric signal from a light pulse, a binary data signal capable of representing the projection information needs to be obtained through demodulation, the obtained binary data signal can be recognized by a computer system, and then a virtual scene is formed or superposed in a real scene through a series of processing procedures.
103. The second device displays the predicted position of the first vehicle and the position relationship of the second vehicle on a display screen of the second vehicle through Augmented Reality (AR) technology.
The AR is a technology for increasing the perception of a user to the real world through information provided by a computer system, applies virtual information to the real world, and superimposes virtual object, scene, or system prompt information generated by a computer to the real scene, thereby implementing enhancement of reality, and the technology aims to cover the virtual world on the real world on a screen and perform interaction. For example, in the embodiment of the present application, the virtual predicted position of the first vehicle is superimposed in the real driving scene and displayed through the on-board display screen of the second vehicle.
In this embodiment, for example, the projection information received by the second device is infrared light, the second device needs to perform photoelectric conversion on the infrared light, convert the infrared light into an electrical signal from an optical pulse, and further needs to demodulate to obtain a binary data signal capable of representing the projection information, so that the binary data signal can be recognized by the computer system, and then a virtual scene is formed or superimposed in a real scene through a series of processing flows.
It should be noted that the second device may also send feedback information to the first device, where the feedback information is used to indicate the moving speed and the detection distance of the second vehicle, so that the vehicle a can know the information of the vehicle B and make a timely response, thereby avoiding collision.
In the embodiment of the application, the route prompting method is applied to a route prompting system, the route prompting system comprises a first device and a second device, the second device can acquire projection information transmitted by the first device, the projection information is used for indicating a predicted position of a first vehicle, the first vehicle is a vehicle provided with the first device, the second vehicle is a vehicle provided with the second device, then the second device analyzes the projection information to obtain the predicted position of the first vehicle and the position relation of the second vehicle, and then the second device displays the predicted position of the first vehicle and the position relation of the second vehicle on a display screen of the second vehicle through an AR technology. Through the mode, the second vehicle where the second device is located can know the following driving track of the first vehicle where the first device is located through the projection information transmitted by the first device and display the driving track on the display screen of the second vehicle, and the visual and vivid display mode is beneficial to the second vehicle to predict the driving dynamics of the first vehicle in advance, and take a countermeasure as soon as possible, so that the collision risk is reduced.
The method for route prompting in the embodiment of the present application will be explained from the first device side, as shown in fig. 3, another embodiment provided by the present application includes:
301. the first device acquires control information of a first vehicle.
In this embodiment, the first device may obtain the control information for the vehicle according to the action of the driver on the vehicle, such as turning a steering wheel, stepping a brake, and the like, that is, the control information is a driving instruction for controlling the first vehicle.
302. If the state of the first vehicle satisfies the target condition, the first device generates projection information according to the control information.
In this embodiment, the first device may analyze the current state of the first vehicle in real time, and if the state of the first vehicle satisfies the target condition, the first device may generate the projection information according to the control information. Specifically, the target condition may include that no other vehicle is in front of the first vehicle, that the first vehicle is located at a t-junction, that the speed of the first vehicle is below a preset threshold, and/or that there is no signal light in front of the first vehicle, etc. It should be noted that the target conditions listed in the present application are only examples, and in practice, other conditions where the running of the first vehicle may pose a safety hazard to other vehicles may be the target conditions in the present application, and are not limited herein.
It should be noted that the first device may also generate the projection information by combining the identity information of the first device with the control information, for example, generating the projection information in a coded form. In addition, the description of the projection information is similar to that in the embodiment shown in fig. 1, and is not repeated herein.
303. The first device transmits the projection information to the second vehicle.
In the implementation of the application, the first device sends the generated projection information to the second vehicle, specifically, the first device may send the projection information to an area on the road surface, and if the area is within the monitoring range of the second device, the second device may acquire the projection information on the area. In addition, the first device can also receive feedback information sent by the second device, so that the vehicle A can know the information of the vehicle B and make timely reflection, and collision is avoided.
The route prompting method in the present application is introduced through some practical scenarios as follows:
referring to fig. 4, when the driving control information received by the first device on the vehicle a is moving leftward, the vehicle a generates corresponding projection information, i.e., infrared light, according to the control information, and the second device on the vehicle B analyzes that the driving intention of the vehicle a is moving leftward by detecting the infrared light, and then reflects the driving intention of the vehicle a on the display screen of the vehicle B.
Referring to fig. 5, when the vehicle a turns right, the sight of the vehicle B at the corner is blocked, and it is not known that the vehicle at the corner is moving, and at this time, the vehicle B analyzes the driving intention about the vehicle a according to the received projection information, and displays the information on the display screen of the vehicle B, where the pattern or warning mark using the vehicle as a model is provided in the front pattern of the vehicle a.
Referring to fig. 6, a second device of the route guidance system of the present invention is described in detail below, where the second device includes:
an obtaining unit 601, configured to obtain projection information transmitted by a first device, where the projection information is generated by the first device according to control information of a first vehicle, the control information is a driving instruction for controlling the first vehicle, the projection information is used to indicate a predicted position of the first vehicle, the projection information is a pattern having a shape, and the first vehicle is a vehicle on which the first device is mounted;
an analyzing unit 602, configured to analyze the projection information to obtain a positional relationship between a predicted position of the first vehicle and a second vehicle, where the second vehicle is a vehicle to which the second device is mounted;
a display unit 603, configured to display the predicted position of the first vehicle and the position relationship of the second vehicle on a display screen of the second vehicle through an augmented reality AR technology.
Optionally, the parsing unit 602 is specifically configured to:
determining an included angle between a light ray of the projection information and a horizontal plane according to the projection information;
and calculating the detection distance between the predicted position of the first vehicle and the second vehicle according to the included angle and the distance from the second device to the horizontal plane.
Optionally, the second apparatus further includes:
a sending unit 604, configured to send feedback information to the first device, where the feedback information is used to indicate the moving speed of the second vehicle and the detection distance.
Optionally, the shape of the pattern is a code, and the second apparatus further includes:
an identifying unit 605, configured to identify the identity information of the first vehicle according to the code.
In this embodiment, the obtaining unit 601 may obtain projection information transmitted by a first device, where the projection information is used to indicate a predicted position of a first vehicle, where the first vehicle is a vehicle mounted with the first device, and a second vehicle is a vehicle mounted with a second device, then the analyzing unit 602 analyzes the projection information to obtain the predicted position of the first vehicle and a positional relationship of the second vehicle, and then the display unit 603 displays the predicted position of the first vehicle and the positional relationship of the second vehicle on a display screen of the second vehicle through AR technology. Through the mode, the second vehicle where the second device is located can know the following driving track of the first vehicle where the first device is located through the projection information transmitted by the first device and display the driving track on the display screen of the second vehicle, and the visual and visual display mode is helpful for the second vehicle to predict the driving dynamics of the first vehicle in advance, make a response measure as soon as possible and reduce the collision risk.
Referring to fig. 7, a first device of the route guidance system of the present invention is described in detail below, and the first device includes:
an obtaining unit 701, configured to obtain control information of a first vehicle, where the control information is a driving instruction for controlling the first vehicle, and the first vehicle is a vehicle on which the first device is mounted;
a generating unit 702 configured to generate projection information according to the control information, the projection information indicating a predicted position of the first vehicle, the projection information being a pattern having a shape, if a state of the first vehicle satisfies a target condition;
a sending unit 703, configured to send the projection information to the second apparatus.
Optionally, the shape of the pattern is a code, and the code is used for indicating the identity information of the first vehicle.
Optionally, the obtaining unit 701 is further configured to:
and feedback information sent by the second device is obtained, wherein the feedback information is used for indicating the moving speed and the detection distance of the second vehicle, and the detection distance is the distance between the predicted position of the first vehicle and the second vehicle.
Optionally, the target condition includes that there is no other vehicle in front of the first vehicle, the first vehicle is located at a t-junction, the speed of the first vehicle is lower than a preset threshold and/or there is no signal lamp in front of the first vehicle.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, 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 application 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 may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should 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; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present application.
Claims (12)
1. A route prompting method is applied to a route prompting system, the route prompting system comprises a first device and a second device, and the method comprises the following steps:
the second device acquires projection information transmitted by the first device, wherein the projection information is generated by the first device according to control information of a first vehicle, the control information is an instruction for controlling the first vehicle to run, the projection information is used for indicating a predicted position of the first vehicle, the projection information is a pattern with a shape, and the first vehicle is a vehicle provided with the first device;
the second device analyzes the projection information to obtain the position relation between the predicted position of the first vehicle and a second vehicle, wherein the second vehicle is a vehicle provided with the second device;
the second device displays the predicted position of the first vehicle and the position relation of the second vehicle on a display screen of the second vehicle through an Augmented Reality (AR) technology;
wherein the second device analyzing the projection information to obtain the position relationship between the predicted position of the first vehicle and the second vehicle comprises:
the second device determines an included angle between the light of the projection information and a horizontal plane according to the projection information;
the second device calculates a detected distance between the predicted position of the first vehicle and the second vehicle based on the angle and a distance from the second device to a horizontal plane.
2. The method of claim 1, further comprising:
the second device sends feedback information to the first device, wherein the feedback information is used for indicating the moving speed and the detection distance of the second vehicle.
3. The method of any of claims 1-2, wherein the pattern is shaped as a code, the method further comprising:
the second device identifies identity information of the first vehicle according to the code.
4. A route prompting method is applied to a route prompting system, the route prompting system comprises a first device and a second device, and the method comprises the following steps:
the method comprises the steps that a first device obtains control information of a first vehicle, wherein the control information is a driving instruction used for controlling the first vehicle, and the first vehicle is a vehicle provided with the first device;
if the state of the first vehicle meets a target condition, the first device generates projection information according to the control information, the projection information is used for indicating a predicted position of the first vehicle, and the projection information is a pattern with a shape;
the first device sends the projection information to the second device;
the first device acquires feedback information sent by the second device, wherein the feedback information is used for indicating the moving speed and the detection distance of a second vehicle, and the detection distance is the distance between the predicted position of the first vehicle and the second vehicle; the detection distance is calculated according to the included angle and the distance from the second device to the horizontal plane, wherein the included angle is determined by the second device according to the projection information, and the included angle is between the light of the projection information and the horizontal plane; the second vehicle is a vehicle on which the second device is mounted.
5. The method of claim 4, wherein the pattern is shaped as a code indicating identity information of the first vehicle.
6. The method of any one of claims 4 to 5, wherein the target condition comprises no other vehicle ahead of the first vehicle, the first vehicle being at a T-junction, a speed of the first vehicle being below a preset threshold and/or no signal light ahead of the first vehicle.
7. A second device, wherein the second device is used in a route prompting system, and the second device comprises:
an acquisition unit configured to acquire projection information transmitted by a first device, the projection information being generated by the first device according to control information of a first vehicle, the control information being a traveling instruction for controlling the first vehicle, the projection information being a predicted position of the first vehicle, the projection information being a pattern having a shape, the first vehicle being a vehicle on which the first device is mounted;
an analysis unit configured to analyze the projection information to obtain a positional relationship between a predicted position of the first vehicle and a second vehicle, where the second vehicle is a vehicle to which the second device is mounted;
a display unit, configured to display a positional relationship between the predicted position of the first vehicle and the second vehicle on a display screen of the second vehicle through an Augmented Reality (AR) technology;
wherein the parsing unit is specifically configured to:
determining an included angle between a light ray of the projection information and a horizontal plane according to the projection information;
and calculating the detection distance between the predicted position of the first vehicle and the second vehicle according to the included angle and the distance from the second device to the horizontal plane.
8. The second apparatus according to claim 7, wherein the second apparatus further comprises:
a sending unit, configured to send feedback information to the first device, where the feedback information is used to indicate a moving speed of the second vehicle and the detection distance.
9. The second apparatus according to any one of claims 7 to 8, wherein the pattern is shaped as a code, the second apparatus further comprising:
and the identification unit is used for identifying the identity information of the first vehicle according to the code.
10. A first device, wherein the first device is used in a route prompting system, the first device comprising:
the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring control information of a first vehicle, the control information is a driving instruction for controlling the first vehicle, and the first vehicle is a vehicle provided with a first device;
a generation unit configured to generate projection information according to the control information if a state of the first vehicle satisfies a target condition, the projection information indicating a predicted position of the first vehicle, the projection information being a pattern having a shape;
a transmitting unit for transmitting the projection information to a second device;
the acquiring unit is further configured to acquire feedback information sent by the second device, where the feedback information is used to indicate a moving speed and a detection distance of a second vehicle, and the detection distance is a distance between a predicted position of the first vehicle and the second vehicle, where the detection distance is calculated by the second device according to the included angle between the light of the projection information and a horizontal plane and the included angle and the distance between the second device and the horizontal plane; the second vehicle is a vehicle on which the second device is mounted.
11. The first apparatus of claim 10, wherein the pattern is shaped as a code indicating identity information of the first vehicle.
12. The first apparatus of any one of claims 10 to 11, wherein the target condition comprises no other vehicle in front of the first vehicle, the first vehicle being at a T-junction, a speed of the first vehicle being below a preset threshold and/or no signal light in front of the first vehicle.
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| JPH1097698A (en) * | 1996-09-19 | 1998-04-14 | Mitsubishi Heavy Ind Ltd | Vehicle-to-vehicle distance measuring instrument |
| KR20060008977A (en) * | 2003-05-07 | 2006-01-27 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | Public service system |
| CN102910130B (en) * | 2012-10-24 | 2015-08-05 | 浙江工业大学 | Forewarn system is assisted in a kind of driving of real enhancement mode |
| CN104637330B (en) * | 2015-02-15 | 2016-11-16 | 国家电网公司 | The anti-hypervelocity method of vehicle mounted guidance communication system based on video Quick Response Code |
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| CN109979224B (en) * | 2017-12-27 | 2024-06-14 | 安波福电子(苏州)有限公司 | Navigation system and method based on dynamic two-dimensional code |
| CN109345835A (en) * | 2018-09-05 | 2019-02-15 | 华北电力大学扬中智能电气研究中心 | A kind of forward direction method for early warning and device based on truck traffic |
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