CN108528326B - Vehicle-mounted interconnection method - Google Patents
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- 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
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- H—ELECTRICITY
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- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
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Abstract
The invention discloses a vehicle-mounted interconnection method, which comprises the following steps: receiving instruction information and content information sent by a user; analyzing the instruction information to generate direction information; converting the content information into an optical signal; and carrying out direction positioning of the vehicle light sending module according to the direction information, and sending the light signal according to the direction indicated by the direction information. The method can also quickly position the opposite vehicle needing communication, so that the optical transmission module carries out optical signal transmission according to a specific direction, and the opposite vehicle can better receive optical signals.
Description
Technical Field
The present invention relates to a method for vehicle data transmission, and more particularly, to a vehicle-mounted interconnection method, a computer-readable storage medium, and a vehicle-mounted terminal.
Background
With the continuous improvement of automobile production capacity and people's living standard, the automobile becomes the tool of riding instead of walk of ordinary family more and more, but with the continuous improvement of automobile rate of utilization, traffic accident incidence is also continuously rising. Therefore, many domestic research institutes have been devoted to the research of active safety techniques for automobiles in recent years. In the driving process of the automobile, in order to prevent accidents, not only is safe driving required, but also the driving conditions of surrounding automobiles need to be observed and known in time so as to take measures to avoid the accidents in time, for example, a driver needs to change the light of far and near light according to the driving states of two vehicles during meeting so as to avoid dazzling during meeting, and therefore the accidents are reduced as much as possible. For example, when overtaking on a road, if it is necessary to prevent a sudden lane change of a preceding vehicle, it is necessary to perform a flashing light or a whistling operation, but the preceding driver does not always notice such an operation as a warning.
In the prior art, vehicles running on a road cannot be communicated in time, so that effective communication between vehicle owners and vehicle owners cannot be achieved, and further misunderstanding among vehicle owners and road rage caused by illegal lane occupation, slow running, lane passing, lane changing and the like are inevitable.
LiFi is the abbreviation of Light Fidelity, a brand new wireless data transmission technology developed by great physicist Harrad-Haas in England, and the whole process can be completed by using common lighting. The user has also opened an internet connection while turning on the room lights. This device, known as LiFi, can be used to transmit wireless data from the "white space" television band or unused satellite signals. The invention transmits data by changing the frequency of the room lighting, the data transmitted per second is more than 10Mb, and the invention is comparable with the typical broadband connection. The Chinese patent application 'LIFI lamplight-based unidirectional transmission device' (invention patent application No. 201410582927.0 publication No. CN105634592A) discloses a unidirectional transmission device for carrying out unidirectional transmission on data through optical signals by using an LIFI technology, which comprises a sending end communicated with a sending module and a receiving end communicated with a receiving module, wherein the sending module is physically isolated from the receiving module; the sending module comprises an LED and is used for sending optical signals; the receiving module comprises a photomultiplier tube and is used for receiving the light signal sent by the LED and counting and detecting the light signal; the LED and the photomultiplier are oppositely arranged. In order to reduce the interference of stray light in the signal transmission process, the technical scheme needs to arrange the LED and the band-pass filter on the same straight line, and arrange the LED and the band-pass filter in the same sealed and light-shielded box body. This makes the technical solution of the patent application unable to satisfy the requirement that two cars moving at high speed and meeting at random mutually transmit the driving state information. The invention patent application "automobile driving data interactive system based on LiFi and its vehicle signal lighting device" (application number: CN201610574908.2, publication number: CN106059666A) discloses that the driving information of automobile is transmitted by optical signal through LiFi chip placed in the lamp; after the automobile running oppositely or following oppositely receives the signal, the vehicle control computer system analyzes and processes the running data to obtain the real-time running state information of the opposite vehicle, so that effective measures can be taken in time to prevent vehicle collision or rear-end collision traffic accidents. However, this solution cannot realize data exchange between two vehicles, that is, two vehicles cannot communicate with each other. The invention discloses a vehicle-mounted interconnection device and method and a vehicle (publication number: CN105959022) in China, and discloses an optical signal detection unit, a first processing unit and a prompting unit, so that a detected optical signal is converted into an electric signal, further converted into instruction information corresponding to the optical signal, and the instruction information is prompted. The vehicle interconnection device includes: the receiving unit, the second processing unit and the optical signal transmitting unit are used for processing the received command signal to convert the command signal into an electric signal, converting the electric signal into an optical signal and transmitting the optical signal. The embodiment of the invention can acquire the driving intentions of other vehicle owners in time, realize interconnection and intercommunication among vehicles, and reduce the occurrence of congestion or traffic accidents and the like; the driving intention of the user can be transmitted to adjacent vehicle owners, interconnection and intercommunication among vehicles are realized, and the occurrence of congestion or traffic accidents and the like is reduced. However, in the scheme, a plurality of LED sending modules are required to be arranged to transmit the vehicles in all directions, and the system is inconvenient for users to operate and high in cost.
Aiming at the current situation, a system capable of realizing real-time communication between vehicles is designed, so that effective communication between vehicle owners is increased, misunderstanding is avoided, road rage is avoided, and the like, and the system is very necessary and has certain popularization significance.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, the invention aims to design a vehicle-mounted interconnection method, so that vehicles at intervals or in driving can communicate with each other, and road rage caused by misunderstanding is avoided. Because the lifi technology (optical transmission communication) has the characteristic of one-way transmission, namely, data transmission can be carried out only in an illuminated place, the method can also quickly position the opposite vehicle to be communicated, so that the optical transmission module carries out optical signal transmission according to a specific direction, the opposite vehicle can better receive optical signals, the embarrassment that other vehicles around receive the same optical signals due to too large light irradiation range can be avoided, and the effect of directional transmission is achieved.
In order to achieve the above object, the present invention provides a vehicle-mounted interconnection method, comprising:
receiving instruction information and content information sent by a user;
analyzing the instruction information to generate direction information;
converting the content information into an optical signal;
and carrying out direction positioning of the vehicle light sending module according to the direction information, and sending the light signal according to the direction indicated by the direction information.
Further, the instruction information includes one or more of the opposite vehicle direction information and the communication mode information.
Further, after analyzing the instruction information and generating the direction information, the method further includes:
and converting the azimuth information into two-dimensional coordinate information, setting the vehicle light sending module as an origin of coordinates, setting the vehicle running direction as a Y axis of the coordinates, setting the vehicle running direction as an X axis of the coordinates, and calculating an included angle between a point corresponding to the two-dimensional coordinate information and the Y axis or the X axis.
Further, after analyzing the instruction information and generating the direction information, the method further includes:
directly acquiring included angle information according to the acquired azimuth information, wherein the included angle range between the included angle information and the Y axis is 0-10 degrees when the vehicle is determined to be a vehicle in the front, and the included angle range between the included angle information and the Y axis is 30-50 degrees when the vehicle is determined to be a vehicle in the left front; when the vehicle is determined to be a right front vehicle, the included angle with the Y axis is 30-50 degrees.
Further, the method also comprises the following steps: and driving the vehicle light sending module to rotate according to the angle value of the included angle.
Further, the receiving of the instruction information and the content information sent by the user specifically includes: the method comprises the following steps of obtaining the data through a voice input mode or a key input mode of the vehicle-mounted system.
Further, converting the content information into an optical signal specifically includes:
generating a corresponding data packet header according to the direction information, wherein the data packet header is 2-5 bits, generating content bits of a generated data packet from the content information, forming a data packet by the data packet header and the content bits, and modulating the data packet to generate an optical signal.
Further, the performing the direction positioning of the vehicle light sending module according to the direction information, and sending the light signal according to the direction indicated by the direction information specifically includes:
and the vehicle light sending module circularly moves in an angle range of adding a preset threshold value to the angle value of the included angle to send the light signal.
In another aspect, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of any of the methods described above.
The invention also provides a vehicle-mounted terminal, which comprises a processor and a memory, wherein the memory stores an executable program run by the processor, and the processor executes the steps of any one of the methods when running the executable program.
The vehicle-mounted interconnection and intercommunication method designed by the invention can enable vehicles at intervals or in driving to communicate, and avoid road rage caused by misunderstanding. The lifi technology has the characteristic of one-way transmission, namely, data transmission can be carried out only in an illuminated place, so that the method can also be used for quickly positioning the vehicles of the opposite side needing to be communicated, so that the optical transmission module carries out optical signal transmission according to a specific direction, the vehicles of the opposite side can receive optical signals better, the embarrassment that other vehicles at the periphery receive the same optical signals due to too large light irradiation range can be avoided, and the effect of directional transmission is achieved.
Drawings
Fig. 1 is a schematic flow chart illustrating a vehicle-mounted interconnection method according to the present invention;
FIG. 2 is a schematic diagram illustrating a vehicle interconnection method according to the present invention;
FIG. 3 is a schematic diagram of a voice input embodiment of the vehicle interconnection method of the present invention;
FIG. 4 is a schematic diagram illustrating an embodiment of a vehicle interconnection method according to the present invention;
fig. 5 is a schematic diagram illustrating a vehicle-mounted interconnection method according to an embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 shows a flow diagram of a vehicle-mounted interconnection method according to the present invention.
As shown in fig. 1, the present invention provides a vehicle-mounted interconnection method, including:
receiving instruction information and content information sent by a user;
analyzing the instruction information to generate direction information;
converting the content information into an optical signal;
and carrying out direction positioning of the vehicle light sending module according to the direction information, and sending the light signal according to the direction indicated by the direction information.
Fig. 2 is a schematic diagram illustrating a vehicle-mounted interconnection method according to the present invention.
As shown in figure 2, in a running road, by adopting the method of the invention, the vehicle can communicate with the front vehicle or the rear vehicle, thus effectively avoiding the occurrence of road rage, leading a driver to generate less misunderstanding and enhancing the driving pleasure. The vehicle includes a vehicle-mounted light transmission module that transmits a modulated light signal in the form of light and a vehicle light reception module that receives the light signal and then demodulates the light signal to extract effective information.
In the embodiment of the invention, the instruction information comprises one or more of opposite vehicle direction information and communication mode information.
The opponent vehicle direction information is a direction of the opponent vehicle with respect to the vehicle in which the user is located, and for example, if the opponent vehicle is located in front of the vehicle in which the user is located on the left side, the vehicle direction information is the front of the left side. The communication mode information is that the user wants to communicate in a voice or text display mode, if the communication mode is the voice mode, the optical signal can be analyzed after the optical signal is received by the opposite side, and then the optical signal is played in the voice mode; if the text display mode is adopted, after the opposite vehicle receives the optical signal, the optical signal is analyzed, and then the information is displayed on the vehicle-mounted terminal or the center console of the vehicle in the form of text or pictures.
In the embodiment of the present invention, the receiving of the instruction information and the content information sent by the user specifically includes: the method comprises the following steps of obtaining the data through a voice input mode or a key input mode of the vehicle-mounted system.
It should be noted that the user may perform input by voice or by pressing a key. As shown in fig. 3, when a voice mode is adopted, a user clicks an input button on a steering wheel of a vehicle, a vehicle-mounted controller starts to receive voice of the user, the user speaks a voice control instruction and content information in the vehicle, for example, the user can speak "tell the vehicle in front that i need to overtake", a vehicle-mounted terminal of the vehicle can perform voice and semantic recognition through voice, communication with the vehicle in front is obtained as the instruction information, the direction information is the front, and the content information is a behavior that needs to overtake. If the user adopts a key input mode, corresponding key operation can be carried out in a center console, a vehicle-mounted terminal or a steering wheel key, and a control module of the carrier acquires the key operation corresponding to the user and then collects instructions and content information; for example, if the user presses the send information button on the center console, the user jumps out of the button for selecting the opposite vehicle, and if the user presses the "forward" button again, the user wants to communicate with the vehicle ahead, and then the center console display jumps out of the corresponding content interface again, and if the user selects "need to overtake", the user wants to overtake the vehicle. Certainly, the man-machine interaction mode of the invention is not limited to the voice and key input mode, and brain wave signal acquisition can be performed to obtain user instruction information and content information.
Further, after analyzing the instruction information and generating the direction information, the method further includes:
and converting the azimuth information into two-dimensional coordinate information, setting the vehicle light sending module as an origin of coordinates, setting the vehicle running direction as a Y axis of the coordinates, setting the vehicle running direction as an X axis of the coordinates, and calculating an included angle between a point corresponding to the two-dimensional coordinate information and the Y axis or the X axis.
In the embodiment of the present invention, the vehicle light sending module is an origin of coordinates, the vehicle sending module may be disposed inside a vehicle headlight module, may be disposed above a roof of a vehicle, may be disposed inside a vehicle taillight module, may be disposed inside a rearview mirror module on a side of the vehicle, and may be disposed inside all the lamp modules, so as to solve the problem of sending in a plane 360 degrees. As to the orientation in which the sending module is arranged, those skilled in the art can specifically set up the sending module for different needs and scenarios. The vehicle sending module is internally provided with a motor drive for rotating the angle, and is also provided with a light collecting module, so that the sent light can be well collected, and the collected light can be irradiated in a specific direction, thereby avoiding the embarrassment that other vehicles at the periphery also receive the same light signal because the light irradiation range is too large.
In the embodiment of the present invention, the direction information is converted into two-dimensional coordinate information, and the collected direction information of the user instruction is converted into two-dimensional information, for example, when the collected user direction information is "a vehicle having a distance of 30 meters in the 3 o' clock direction", the information is converted into corresponding coordinate information. Setting the vehicle light sending module as an origin of coordinates, for example, setting a module in a left headlamp of a vehicle as an origin of coordinates when the sending module sends; if the transmitting module in the right headlamp of the vehicle transmits, the module in the right headlamp is set as the origin of coordinates. The vehicle running direction is a Y axis of coordinates, a coordinate X axis is set to be perpendicular to the vehicle running direction, and an included angle between a point corresponding to the two-dimensional coordinate information and the Y axis or the X axis is calculated. The vehicle sending module drives the motor according to the included angle to perform corresponding angle steering, and then controls the sending module to send the optical signal.
In another embodiment of the present invention, after analyzing the instruction information and generating the direction information, the method further includes:
directly acquiring included angle information according to the acquired azimuth information, wherein the included angle range between the included angle information and the Y axis is 0-10 degrees when the vehicle is determined to be a vehicle in the front, and the included angle range between the included angle information and the Y axis is 30-50 degrees when the vehicle is determined to be a vehicle in the left front; when the vehicle is determined to be a right front vehicle, the included angle with the Y axis is 30-50 degrees.
It should be noted that, users who drive vehicles generally cannot well find the distance of a specific opponent vehicle or determine the corresponding angle, and most users have a general direction determination. The included angles may default to several fixed sets of values. The included angle of the front vehicle ranges from 0 to 10 degrees. The included angle of the left front vehicle is 30-50 degrees. The included angle of the vehicle at the front right is 30-50 degrees. The time for calculating the included angle of the front vehicle can be reduced by setting a fixed included angle range, and the included angle of the vehicle can be judged directly through the voice or gesture of a user and the like.
For example, straight ahead, left-front, right-front, etc. Therefore, in order to avoid that the user can also position the transmission direction under the condition that the user cannot specifically position the opposite vehicle, the angle can be identified and corresponding by identifying the fuzzy positioning direction given by the user. The method specifically comprises the following steps: when the communication with the front vehicle is determined, specifically when the vehicle is determined to be the vehicle right in front, the included angle range with the Y axis is 0-10 degrees, and when the vehicle is determined to be the vehicle at the left front, the included angle range with the Y axis is 30-50 degrees; when the vehicle is determined to be a right front vehicle, the included angle between the vehicle and the Y axis is 30-50 degrees. When the communication with the vehicle behind is determined, particularly when the vehicle behind is determined, the included angle range of the communication with the Y axis is 0-10 degrees, and when the vehicle behind the left is determined, the included angle range of the communication with the Y axis is 30-50 degrees; when the vehicle is determined to be the right rear vehicle, the included angle between the vehicle and the Y axis is 30-50 degrees. The mapping relationship between specific directions and specific angles can be located according to actual needs by those skilled in the art, and any changes or substitutions which are not thought of by the inventive work should be covered within the protection scope of the present invention.
In the embodiment of the present invention, the method further includes: and driving the vehicle light sending module to rotate according to the angle value of the included angle. The vehicle sending module is internally provided with a motor drive for rotating the angle, and is also provided with a light collecting module, so that the sent light can be well collected, and the collected light can be irradiated in a specific direction, thereby avoiding the embarrassment that other vehicles at the periphery also receive the same light signal because the light irradiation range is too large.
Further, the performing the direction positioning of the vehicle light sending module according to the direction information, and sending the light signal according to the direction indicated by the direction information specifically includes:
and the vehicle light sending module circularly moves in an angle range of adding a preset threshold value to the angle value of the included angle to send the light signal.
The threshold is a preset threshold, and the threshold range is 2-15 degrees. Preferably 2-5 degrees, a larger threshold range may allow the transmitted optical signal to be transmitted to other vehicles covering the range of the transmitted optical signal, resulting in the possibility of the other vehicles receiving the signal by mistake. For example, when the direction of the opposite vehicle is determined to be the left front direction, the included angle range between the Y axis and the Y axis is 30-50 degrees, the threshold value is 5 degrees, the included angle range is 25-55 degrees, and the vehicle light sending module drives the motor to circularly transmit the light signals in the range of 25-55 degrees.
In the embodiment of the present invention, converting the content information into an optical signal specifically includes:
generating a corresponding data packet header according to the direction information, wherein the data packet header is 2-5 bits, generating content bits of a generated data packet from the content information, forming a data packet by the data packet header and the content bits, and modulating the data packet to generate an optical signal.
It should be noted that, the whole data packet is composed of two parts, one part is a data packet header; one part is a content part, which consists of corresponding content bits. The whole data packet can adopt binary data or quaternary and octal data, and can be specifically set according to actual needs. And generating a corresponding data packet header according to the direction information, wherein the data packet header is 2-5 bits. The direction information is transmitted in the packet in order to inform the vehicle receiving the data from which direction the data is transmitted, and the receiving vehicle can know from which direction the data is from after analyzing the entire packet. For example, the vehicle in which the user is located is a vehicle a, and wants to communicate with a vehicle B in the front left. The header portion of the transmitted optical communication packet contains direction information, which is the front left; the content portion of the data packet contains corresponding content information to be transmitted. The information in the data packet to be transmitted is bit information after corresponding modulation, and the length can be set according to actual needs. Preferably, the data packet header is 2-5 bits. Because too many directions do not need to be expressed, in a plane range, only 360-degree direction information is needed, but the direction information is confirmed to be 4-32 in consideration of the size of the vehicle and the setting problem of a sending module, so that the information does not need too many bits and only needs 2-5.
After the vehicle transmits the optical signal, the vehicle further includes: and receiving a feedback data packet sent by the opposite vehicle to indicate that the opposite vehicle successfully receives the optical signal. And if the optical information is not successfully transmitted within a preset time threshold, defaulting that the optical information is not successfully transmitted or a feedback data packet transmitted by the opposite vehicle is not successfully received. In this case, it is necessary to transmit the data packet of the optical information once again, and increase the transmission power of the optical transmission module to ensure that the signal transmitted this time can effectively reach the opposite vehicle, and increase the transmission number flag bit in the header of the data packet to indicate the number of times of transmission, and if the number of times of transmission is large, it indicates that the optical transmission environment is poor; if the number of transmission times is small, the optical transmission environment is good. The set sending times zone bit can also enable the opposite vehicle to know the sending times, if the sending times are more, the power of the optical sending module is increased when the opposite vehicle feeds back, and therefore the vehicle where the user is located can successfully receive the feedback signal.
In the embodiment of the invention, the time threshold is 0.5-5 seconds, and the optical signal data packet is retransmitted when the feedback data packet is not received within 0.5-5 seconds. Preferably, the time threshold is 1 second.
In the embodiment of the invention, the threshold value of the sending times is 2-10 times, and after the sending times exceeds the threshold value of the sending times, the sending power of the vehicle-mounted optical sending module is enhanced. Preferably, the threshold value of the number of transmissions is 3.
Example one
As shown in fig. 4, the direction information is converted into two-dimensional coordinate information, and the collected direction information instructed by the user is converted into two-dimensional information, for example, when the collected direction information of the user is "a vehicle having a distance of 30 meters in the 2 o' clock direction", the information is converted into corresponding coordinate information. Setting the vehicle light sending module as an origin of coordinates, for example, setting a module in the left headlamp as the origin of coordinates when the light sending module on the roof of the vehicle sends; if the transmitting module in the right headlamp of the vehicle transmits, the module in the right headlamp is set as the origin of coordinates. And the vehicle running direction is a Y axis of coordinates, a coordinate X axis is set to be vertical to the vehicle running direction, and an included angle A between a point corresponding to the two-dimensional coordinate information and the Y axis is calculated. The vehicle sending module drives the motor according to the angle of the included angle A, corresponding angle steering is carried out, and then the sending module is controlled to send the optical signal.
In the embodiment of the invention, an angle threshold value can be set. When the position of the opposite vehicle is determined to be the right front, the included angle range between the Y axis and the Y axis is 30-50 degrees, the threshold value is 5 degrees, the included angle range is 25-55 degrees, and the vehicle light transmitting module drives the motor to circularly transmit light signals within the range of 25-55 degrees.
Example two
As shown in fig. 5, fig. 5 does not show the schematic diagram of the included angle of the vehicle in other directions, and only the schematic diagram of the included angle of the vehicle in the front right direction is shown to be sufficient for explaining the technical scheme of the invention. According to the embodiment of the invention, when a voice mode is adopted, a user clicks an input button on a steering wheel of a vehicle, the vehicle-mounted controller starts to receive voice of the user, the user speaks a voice control instruction and content information in the vehicle, for example, the user can speak out that the right front vehicle needs to overtake, a vehicle-mounted terminal of the vehicle can perform voice and semantic recognition through voice, the instruction information is obtained to be communicated with the front vehicle, the direction information is the right front, and the content information is behavior needing to overtake. Directly acquiring included angle information according to the acquired azimuth information, wherein the included angle range between the included angle information and the Y axis is 0-10 degrees when the vehicle is determined to be a vehicle in the front, and the included angle range between the included angle information and the Y axis is 30-50 degrees when the vehicle is determined to be a vehicle in the left front; when the vehicle is determined to be a right front vehicle, the included angle between the vehicle and the Y axis is 30-50 degrees. And determining the included angle of the vehicle at the front right of the vehicle to be 30-50 degrees according to the included angle range.
The vehicle sending module drives the motor according to the included angle to perform corresponding angle steering, and then controls the sending module to send the optical signal. In the present embodiment, the vehicle transmission module is provided on a roof of a vehicle.
In the embodiment of the invention, an angle threshold value can also be set. When the position of the opposite vehicle is determined to be the right front, the included angle range between the Y axis and the Y axis is 30-50 degrees, the threshold value is 5 degrees, the included angle range is 25-55 degrees, and the vehicle light transmitting module drives the motor to circularly transmit light signals within the range of 25-55 degrees.
EXAMPLE III
The generation of the data packet is performed after the direction information and the content information are acquired. Generating a corresponding data packet header according to the direction information, wherein the data packet header is 2-5 bits, generating content bits of a generated data packet from the content information, forming a data packet by the data packet header and the content bits, and modulating the data packet to generate an optical signal.
It should be noted that, the whole data packet is composed of two parts, one part is a data packet header; one part is a content part, which consists of corresponding content bits. The whole data packet can adopt binary data or quaternary and octal data, and can be specifically set according to actual needs. And generating a corresponding data packet header according to the direction information, wherein the data packet header is 2-5 bits. The direction information is transmitted in the packet in order to inform the vehicle receiving the data from which direction the data is transmitted, and the receiving vehicle can know from which direction the data is from after analyzing the entire packet. For example, the vehicle in which the user is located is a vehicle a, and wants to communicate with a vehicle B in the front left. The header portion of the transmitted optical communication packet contains direction information, which is the front left; the content portion of the data packet contains corresponding content information to be transmitted. The information in the data packet to be transmitted is bit information after corresponding modulation, and the length can be set according to actual needs. For example, with 3-bit header bits, 001 represents the front right, 010 represents the front left, 011 represents the front right, and so on.
Preferably, the data packet header is 2-5 bits. Because too many directions do not need to be expressed, in a plane range, only 360-degree direction information is needed, but the direction information is confirmed to be 4-32 in consideration of the size of the vehicle and the setting problem of a sending module, so that the information does not need too many bits and only needs 2-5. Of course, other identification bits can be set in the data packet to identify various situations.
In another aspect, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of any of the methods described above.
The invention also provides a vehicle-mounted terminal, which comprises a processor and a memory, wherein the memory stores an executable program run by the processor, and the processor executes the steps of any one of the methods when running the executable program. The vehicle-mounted terminal can be electronic equipment such as a central controller and a mobile terminal of a vehicle.
The vehicle-mounted interconnection and intercommunication method designed by the invention can enable vehicles at intervals or in driving to communicate, and avoid road rage caused by misunderstanding. The lifi technology has the characteristic of one-way transmission, namely, data transmission can be carried out only in an illuminated place, so that the method can also be used for quickly positioning the vehicles of the opposite side needing to be communicated, so that the optical transmission module carries out optical signal transmission according to a specific direction, the vehicles of the opposite side can receive optical signals better, the embarrassment that other vehicles at the periphery receive the same optical signals due to too large light irradiation range can be avoided, and the effect of directional transmission is achieved.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention. The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
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; can be located in one place or 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, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a vehicle-mounted terminal, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (5)
1. A vehicle-mounted interconnection method is characterized by comprising the following steps:
receiving instruction information and content information sent by a user;
analyzing the instruction information to generate direction information;
converting the content information into an optical signal;
the direction of the vehicle light sending module is positioned according to the direction information, and the light signal is sent according to the direction indicated by the direction information;
the instruction information comprises one or more of opposite vehicle direction information and communication mode information;
after analyzing the instruction information and generating the direction information, the method further comprises the following steps: converting the orientation information into two-dimensional coordinate information, setting the vehicle light sending module as an origin of coordinates, setting the vehicle running direction as a Y axis of the coordinates, setting the vehicle running direction as a X axis of the coordinates, and calculating an included angle between a point corresponding to the two-dimensional coordinate information and the Y axis or the X axis;
after analyzing the instruction information and generating the direction information, the method further comprises the following steps: the included angle information is directly obtained according to the obtained direction information, when the vehicle is determined to be the vehicle in the front, the included angle range between the included angle information and the Y axis is 0-10 degrees, and when the vehicle is determined to be the vehicle in the left front, the included angle range between the included angle information and the Y axis is 30-50 degrees; when the vehicle is determined to be a right front vehicle, the included angle between the vehicle and the Y axis is 30-50 degrees;
driving the vehicle light sending module to rotate according to the angle value of the included angle;
the positioning the direction of the vehicle light sending module according to the direction information, and sending the light signal according to the direction indicated by the direction information specifically includes: the vehicle light sending module circularly moves in an angle range of the angle value of the included angle plus a preset threshold value to send the light signal;
the threshold is a preset threshold, and the threshold range is 2-15 degrees.
2. The vehicle-mounted interconnection and interworking method according to claim 1, wherein the receiving of the instruction information and the content information sent by the user specifically comprises: the method comprises the following steps of obtaining the data through a voice input mode or a key input mode of the vehicle-mounted system.
3. The vehicle-mounted interconnection method according to claim 1, wherein converting the content information into an optical signal specifically comprises: generating a corresponding data packet header according to the direction information, wherein the data packet header is 2-5 bits, generating content bits of a generated data packet from the content information, forming a data packet by the data packet header and the content bits, and modulating the data packet to generate an optical signal.
4. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 3.
5. A vehicle terminal comprising a processor, a memory storing an executable program for execution by the processor, wherein the processor executes the executable program to perform the steps of the method according to any one of claims 1 to 3.
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| CN109448409A (en) * | 2018-10-30 | 2019-03-08 | 百度在线网络技术（北京）有限公司 | Method, apparatus, equipment and the computer storage medium of traffic information interaction |
| CN110053545A (en) * | 2019-05-13 | 2019-07-26 | 斑马网络技术有限公司 | Control method, device, medium and the electronic equipment of car lighting |
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