CN111034229A - Information processing method, device, carrier and storage medium - Google Patents
Information processing method, device, carrier and storage medium Download PDFInfo
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- H—ELECTRICITY
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- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
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Abstract
The embodiment of the invention provides an information processing method, an information processing device, a carrier and a storage medium. According to the embodiment of the invention, the target information to be sent of the first carrier is obtained, the target information is coded to obtain the coded target information, the optical signal is generated according to the coded target information and is sent to the second carrier through the wireless channel, the optical signal can be directly transmitted in the air without transmission media of wired channels such as optical fibers and the like, V2V communication between carriers is realized, and the transmission capacity of a V2V communication network between carriers is improved because the bandwidth of visible light is larger than that of radio waves.
Description
Technical Field
The embodiment of the invention relates to the field of vehicle control, in particular to an information processing method, an information processing device, a carrier and a storage medium.
Background
V2V (Vehicle to Vehicle) technology in intelligent transportation systems provides direct end-to-end wireless communication for moving vehicles. That is, the vehicle terminals directly exchange wireless information with each other through the V2V communication technology.
In the prior art, the V2V technology needs to be assisted by a traditional communication network, but the traditional communication network has a limited bandwidth, so that the transmission capacity of the communication network is reduced.
Disclosure of Invention
The embodiment of the invention provides an information processing method, an information processing device, a carrier and a storage medium, which are used for improving the transmission capacity of a communication network.
A first aspect of an embodiment of the present invention provides an information processing method, including:
acquiring target information to be sent of a first carrier;
coding the target information to obtain coded target information;
and generating an optical signal according to the coded target information, and transmitting the optical signal through a wireless channel.
A second aspect of an embodiment of the present invention is to provide an information processing method, including:
receiving an optical signal sent by a first carrier, wherein the optical signal is generated by the first carrier according to the encoded target information;
generating the coded target information according to the optical signal;
and decoding the coded target information to obtain the target information.
A third aspect of embodiments of the present invention is to provide an information processing apparatus, including: a memory, a processor, and a transmitting unit;
the memory is used for storing program codes;
the processor, invoking the program code, when executed, is configured to:
acquiring target information to be sent of a first carrier;
coding the target information to obtain coded target information;
generating an optical signal according to the encoded target information;
the transmitting unit is used for transmitting the optical signal through a wireless channel.
A fourth aspect of embodiments of the present invention provides an information processing apparatus, including: a memory, a processor, and a receiving unit;
the memory is used for storing program codes;
the processor, invoking the program code, when executed, is configured to:
receiving, by the receiving unit, an optical signal sent by a first carrier, where the optical signal is generated by the first carrier according to the encoded target information;
generating the coded target information according to the optical signal;
and decoding the coded target information to obtain the target information.
A fifth aspect of an embodiment of the present invention is to provide a carrier, including:
a body;
the power system is arranged on the machine body and used for providing power; and
the information processing apparatus according to the third or fourth aspect
A sixth aspect of embodiments of the present invention provides a computer-readable storage medium having stored thereon a computer program for execution by a processor to perform the method according to the first aspect.
In the information processing method, the apparatus, the carrier, and the storage medium provided in this embodiment, the target information to be sent by the first carrier is obtained, the target information is encoded to obtain encoded target information, an optical signal is generated according to the encoded target information, and the optical signal is sent to the second carrier through a wireless channel, where the optical signal can be directly transmitted in the air without a transmission medium of a wired channel such as an optical fiber, so that V2V communication between carriers is implemented, and since the bandwidth of visible light is greater than the bandwidth of radio waves, the transmission capacity of the V2V communication network between carriers is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are 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 labor.
FIG. 1 is a flow chart of an information processing method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an application scenario provided in an embodiment of the present invention;
fig. 3 is a schematic diagram of an encoding method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a first apparatus and a second apparatus provided by an embodiment of the present invention;
FIG. 5 is a flowchart of an information processing method according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of a first apparatus and a second apparatus provided in accordance with another embodiment of the present invention;
fig. 7 is a schematic diagram of an application scenario according to another embodiment of the present invention;
FIG. 8 is a flowchart of an information processing method according to another embodiment of the present invention;
fig. 9 is a block diagram of an information processing apparatus provided in an embodiment of the present invention;
fig. 10 is a block diagram of an information processing apparatus according to an embodiment of the present invention.
Reference numerals:
20: a vehicle; 21: a vehicle; 31: a first device;
32: a second device; 22: a vehicle; 33: a third device;
80: an information processing device; 81: a memory; 82: a processor;
83: a transmitting unit; 90: an information processing device; 91: a memory;
92: a processor; 93: and a receiving unit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The embodiment of the invention provides an information processing method. Fig. 1 is a flowchart of an information processing method according to an embodiment of the present invention. As shown in fig. 1, the method in this embodiment may include:
and S101, acquiring target information to be sent of the first carrier.
In this embodiment, the first and second carriers may be movable carriers such as vehicles, for example, the first carrier may be a first vehicle and the second carrier may be a second vehicle. The first vehicle may be a vehicle 20 as shown in fig. 2, the second vehicle may be a vehicle 21 as shown in fig. 2, the vehicle 20 and the vehicle 21 travel in the same lane, the first device is provided in the vehicle 20, and the second device is provided in the vehicle 21. The first device of the vehicle 20 is configured to send target information to be sent by the vehicle 20, for example, vehicle information of the vehicle 20, prompt information generated by the vehicle 20, and the like, to vehicles around the vehicle 20, for example, the vehicle 21, where the vehicle information of the vehicle 20 may specifically be identification information of the vehicle 20, for example, a vehicle identification number, an engine identification number, and the like, and the prompt information may specifically be information that the vehicle 20 prompts surrounding vehicles to pay attention to meeting, pay attention to overtaking, pay attention to turning, and the like. The second device of the vehicle 21 is configured to receive the information transmitted by the vehicle 20 and analyze the information transmitted by the vehicle 20.
In other embodiments, the second device of the vehicle 21 may be further configured to send target information to be sent by the vehicle 21, for example, vehicle information of the vehicle 21, prompt information generated by the vehicle 21, and the like, to vehicles around the vehicle 21, for example, the vehicle 20, and the first device of the vehicle 20 may be further configured to receive information sent by the vehicle 21 and parse the information sent by the vehicle 21.
And step S102, encoding the target information to obtain encoded target information.
In this embodiment, after the first device of the vehicle 20 obtains the target information to be sent by the vehicle 20, the target information is encoded to obtain encoded target information.
In this embodiment, encoding the target information to obtain encoded target information includes the following possible implementation manners:
one possible implementation is: and grouping and interleaving the target information to obtain the coded target information. For example, the first device includes an interleaver, which may be implemented by a processor, and the first device may obtain the encoded target information by performing packet interleaving on the target information, such as the vehicle information of the vehicle 20, by the interleaver.
The packet interleaving refers to that a sending end outputs an original code stream after disorganizing the original code stream according to a preset rule, and correspondingly, a receiving end is connectedAnd after receiving the scrambled code stream, performing de-interleaving according to the preset rule to recover the original code stream before interleaving. For example, the original code stream corresponding to the vehicle information of the vehicle 20 is b11b12b13...b1nb21b22b23...b2n...bm1bm2bm3...bmnThe preset rule is as follows: dividing the original code stream into m groups, wherein each group comprises n code elements, and the first group is b11b12b13...b1nThe second group is b21b22b23...b2nBy analogy, the mth group is bm1bm2bm3...bmn. The first code element in each group, namely b, is obtained from the m groups in turn11b21b31...bm1The second symbol, b, in each packet is sequentially obtained from the m packets12b22b32...bm2And by analogy, the nth code element, namely b, in each group is obtained from the m groups in sequence1nb2nb3n...bmn，b11b21b31...bm1、b12b22b32...bm2、…、b1nb2nb3n...bmnFormed code stream b11b21b31...bm1b12b22b32...bm2…b1nb2nb3n...bmnI.e. the code stream which is scrambled after packet interleaving, i.e. b11b21b31...bm1b12b22b32...bm2…b1nb2nb3n...bmnEncoded target information obtained by grouping and interleaving vehicle information of the vehicle 20.
When the receiving end receives the scrambled code stream b11b21b31...bm1b12b22b32...bm2…b1nb2nb3n...bmnThen, b is11b21b31...bm1b12b22b32...bm2…b1nb2nb3n...bmnDividing the data into n groups according to the interleaving width of the group interleaving, namely m, wherein the n groups are b groups in sequence11b21b31...bm1、b12b22b32...bm2、…、b1nb2nb3n...bmnThe first symbol in each packet, b, is obtained from the n packets11b12b13...b1nThe second symbol in each packet, b, is obtained from the n packets21b22b23...b2nAnd so on, obtaining the m-th code element in each group, namely b, from the n groupsm1bm2bm3...bmn，b11b12b13...b1n、b21b22b23...b2n、…、bm1bm2bm3...bmnCan form the original code stream b11b12b13...b1nb21b22b23...b2n...bm1bm2bm3...bmn. Another possible implementation is: and carrying out error correction coding and packet interleaving on the target information to obtain coded target information. For example, the first means comprises an error correction encoder and an interleaver, both of which may be implemented by a processor. The first device can perform Reed-Solomon (RS) error correction coding on the target information to obtain an RS code through an error correction coder, and then perform block interleaving on the RS code by adopting an interleaver to obtain coded target information.
Yet another possible implementation is: coding an information sequence corresponding to the target information through a first coder to obtain a first coding sequence; coding an information sequence corresponding to the target information through an interleaver and a second coder to obtain a second coding sequence; multiplexing the first coding sequence and the second coding sequence after deleting the first coding sequence and the second coding sequence with the target informationThe encoded target information is obtained, as shown in fig. 3. In this embodiment, puncturing refers to adjusting the code rate by deleting redundant parity bits. As shown in FIG. 3, assume that the information sequence corresponding to the target information is b11b12b13...b1nb21b22b23...b2n...bm1bm2bm3...bmn，b11b12b13...b1nb21b22b23...b2n...bm1bm2bm3...bmnInputting the first coded sequence Y into a first encoder for encoding1k，b11b12b13...b1nb21b22b23...b2n...bm1bm2bm3...bmnAfter packet interleaving by the interleaver, the data becomes b11b21b31...bm1b12b22b32...bm2…b1nb2nb3n...bmnThe specific process is as described above, and is not described herein again. Packet interleaved sequence b11b21b31...bm1b12b22b32...bm2…b1nb2nb3n...bmnInputting the coded signal into a second coder for coding to obtain a second coded sequence Y2kWherein Y is1kComprising a systematic code and a check code sequence, Y2kComprising a systematic code and a corresponding check code sequence, wherein Y1kSystem code and Y in (1)2kThe systematic code in (a) is the original information sequence b11b12b13...b1nb21b22b23...b2n...bm1bm2bm3...bmn，Y1kThe check code sequence in (1) is, for example, a1a2a3a4.....，Y2kThe check code sequence in (1) is, for example, b1b2b3b4..., this example does not limit Y1kThe length of the intermediate check code sequence is not limitedFixed Y2kThe length of the check code sequence is determined, and the puncturing process is specifically performed on Y1kCheck code sequence of (1) and Y2kThe check code sequence in (1) is punctured, e.g. deleting a1a2a3a4... the check code on even bits of the medium while the check code on odd bits is retained, and b is deleted1b2b3b4... the parity codes on the odd-numbered bits of the sequence are retained while the parity codes on the even-numbered bits are retained.
And step S103, generating an optical signal according to the coded target information, and transmitting the optical signal through a wireless channel.
For example, the first device generates an optical signal according to the encoded target information, the optical signal may specifically be a visible light signal, the optical signal specifically uses light in a visible light band as an information carrier, and the optical signal can be directly transmitted in the air without a transmission medium such as an optical fiber or a wired channel. The first device transmits the optical signal to a second device of a second vehicle over a wireless channel.
Optionally, the generating an optical signal according to the encoded target information includes: dividing the encoded target information into a plurality of parallel data streams; modulating each data stream in the multiple parallel data streams by adopting a carrier to obtain a modulation signal, wherein the carriers corresponding to each data stream are mutually orthogonal; obtaining a modulation signal corresponding to the coded target information according to a modulation signal corresponding to each data stream; and converting the modulation signal corresponding to the coded target information into the optical signal.
In an alternative embodiment, since an important problem in the information communication process is the disturbance of communication information caused by different communication carriers, other light sources or ambient background light, and the influence of multipath effects on communication, the information error caused by error starting is reduced. A multi-party information verification approach may be employed. Firstly, multi-party information verification needs to determine an information source, for example, information sent by a carrier A, the carrier A is used as an information source, other carriers communicating with the carrier A are relay elements, the information source and the relay element information are packaged in an encoding process, and the information source and the relay element information are equivalent to signature operation on the information in a communication process, so that the requirement on information verification can be met. To identify the information sources and relays, the bearers need to be identified, for example using C1, C2, C3, … …, Cn to denote n bearer codes. The vector a is encoded by C1 ═ C11C12C13C14, C11, C12, C13 and C14 are subcodes encoded by C1; vector B is encoded by C2 ═ C21C22C23C24, and C21, C22, C23, C24 are the subcodes encoded by C2. After the information transmitted by the carrier a is received by the carrier B, the carrier B will forward the information, but in the forwarding process, because the carrier B is a relay unit, the own sub-code C2 will be interleaved with the sub-code C1 of the carrier a, and as an information frame, for example, the information frame after interleaving is: C21C11C22C12C23C13C24C14, such information frames can be restored to C2, C1 after decoding to show the role of carrier a and carrier B. In an alternative embodiment, each sub-code of the carrier may be combined with other sub-codes thereof to form a unique identification function. For example, c21, c22, c23 and c24 are all 8-bit binary codes, and any permutation and combination of the two codes can form the information resolution of 2^16, namely the probability of the combination of the two codes of being misinterpreted is 1/2^ 16.
In an alternative embodiment, taking carrier a as an information source and carrier B as a relay, there is carrier C to forward the information of carrier B again, and then further interleaving is also generated in the carrier coding of the information source and the relay, for example, the coding of carrier C is C3 ═ C31C32C33C34, and the information frame after interleaving is C31C21C11C32C22C12C33C23C13C34C24C 14. Since the interleaved information will increase after the relay element forwards, that is, the total amount of transmitted information will increase, it can be ensured that the time for forwarding transmission each time is substantially the same by changing the information frequency. For example, if the frequency for drive communication is 300Hz to 9000Hz, the drive frequency increases with the number of times of forwarding in a linear manner, for example, the drive frequency of the information source is 500Hz, the drive frequency of the first relay element is 1000Hz, and the drive frequency of the second relay element is 1500Hz, … …. With the increase in the driving frequency, the amount of information transmitted per unit time increases, i.e., the transmission rate increases. High frequency load caused by using high frequency transmission at low information transmission amount can be avoided; information loss during mass transfer of information due to carrier mobility can also be avoided.
As a preferred embodiment, the information transmission frequency can be linearly adjusted by obtaining the size of the information file to be transmitted. For example, the information packet sent by the information source is 1Mb, the initial modulation frequency is 500Hz, the information packet forwarded by the first relay is 1.5Mb, the adjustment frequency of the first relay is 750Hz, the information packet forwarded by the third relay is 1.8Mb, and the adjustment frequency of the first relay is 900 Hz. Because the rate of sending the information is determined by adjusting the size of the frequency, the time for sending the information packet can be ensured to be basically the same by linearly adjusting the size of the frequency in proportion according to the size of the information file. The adjustment frequency is an information transmission source, for example, a frequency of switching a light source, for example, a light source having a switching frequency of 500Hz, and a 2-ary character string having a length of 500 can be transmitted for 1 second.
As shown in fig. 4, 31 denotes a first device of the vehicle 20, 32 denotes a second device of the vehicle 21, and the present embodiment does not limit the installation position of the first device 31 on the vehicle 20 nor the installation position of the second device 32 on the vehicle 21, and optionally, the first device 31 is disposed at the front of the vehicle 20, and the second device 32 is disposed at the rear of the vehicle 21, as shown in fig. 2.
Optionally, the first device 31 includes: error correction encoder, interleaver, modulator, D/A converter, and transmitting circuit module. After the first device 31 obtains the target information to be sent of the vehicle 20, the target information is error-correction coded by the error-correction coder, and then packet interleaved by the interleaver to obtain coded target information, the coded target information is further modulated by the modulator to obtain a modulation signal, and the modulation signal is subjected to digital/analog conversion by the digital/analog converter and then transmitted to the sending circuit module for electro-optical conversion, so as to obtain a converted optical signal. The process of modulating the encoded target information by the modulator to obtain the modulation signal may specifically be: dividing the encoded target information into a plurality of parallel data streams; modulating each data stream in the multiple parallel data streams by adopting a carrier to obtain a modulation signal, wherein the carriers corresponding to each data stream are mutually orthogonal; and obtaining a modulation signal corresponding to the coded target information according to the modulation signal corresponding to each data stream.
The optical signal is transmitted through a wireless channel, after the optical signal is received by the second device 32 of the vehicle 21, the optical signal is subjected to photoelectric conversion by a photoelectric detector of the second device 32 to obtain a converted electrical signal, the converted electrical signal is subjected to analog/digital conversion by an analog/digital converter, then is demodulated by a demodulator, and the demodulated information is deinterleaved by a deinterleaver and then is subjected to RS error correction decoding by an error correction decoder to obtain target information sent by the vehicle 20.
In this embodiment, target information to be sent by a first carrier is acquired, the target information is encoded to obtain encoded target information, an optical signal is generated according to the encoded target information, and the optical signal is sent to a second carrier through a wireless channel, where the optical signal can be directly transmitted in the air without a transmission medium of a wired channel such as an optical fiber, so that V2V communication between carriers is realized, and since the bandwidth of visible light is larger than that of radio waves, the transmission capacity of a V2V communication network between carriers is improved.
The embodiment of the invention provides an information processing method. Fig. 5 is a flowchart of an information processing method according to another embodiment of the present invention. As shown in fig. 5, on the basis of the embodiment shown in fig. 1, the method in this embodiment may include:
step S401, target information to be sent of the first carrier is obtained.
The implementation manner and specific principle of step S401 and step S101 are the same, and are not described herein again.
Step S402, updating the interleaving width of the packet interleaving according to the state of the wireless channel.
As shown in fig. 6, the first apparatus 31 may further include a channel estimator for estimating a state of the wireless channel and updating an interleaving width of the packet interleaving according to the state of the wireless channel, that is, in the present embodiment, the interleaving width of the packet interleaving may vary with the state of the wireless channel. The channel estimator sends the updated interleaving width of the packet interleaving to the interleaver of the first means 31 and the deinterleaver of the second means 32.
And step S403, performing packet interleaving on the target information to obtain coded target information.
Optionally, the interleaver of the first device 31 may perform packet interleaving on the target information to be sent of the vehicle 20 according to the updated interleaving width of the packet interleaving to obtain the coded target information.
Or carrying out error correction coding and packet interleaving on the target information to obtain coded target information. For example, after the error correction encoder of the first device 31 performs RS error correction encoding on the target information to be transmitted by the vehicle 20, the interleaver of the first device 31 performs packet interleaving on the information after RS error correction encoding according to the updated interleaving width of the packet interleaving to obtain the encoded target information.
Step S404, sending the updated interleaving width to the second bearer.
Alternatively, the channel estimator may send the updated interleaving width to the vehicle 21 through the sending circuit module, so that after the vehicle 21 receives the target information sent by the vehicle 20, the deinterleaver of the second device 32 performs deinterleaving by using the updated interleaving width. In addition, in other embodiments, the channel estimator may also be disposed in the second device 32.
Step S405, generating an optical signal according to the coded target information.
For example, the encoded target information is modulated by a modulator to obtain a modulated signal, and the modulated signal is subjected to digital/analog conversion by a digital/analog converter and then transmitted to a transmission circuit module for electro-optical conversion, so as to obtain a converted optical signal.
Step S406, sending the optical signal to the second carrier through a wireless channel by using the light source disposed on the first carrier.
Specifically, the first device 31 transmits the optical signal to the vehicle 21 through a wireless channel by a light source provided on the vehicle 20. The light source includes at least one of: the headlamp of first vehicle, LED daytime running light. For example, the first device 31 transmits the light signal to the vehicle 21 through a wireless channel by controlling the blinking frequency of the headlights of the vehicle 20. In other embodiments, the light signal may also be sent to the vehicle 21 via a wireless channel by controlling the flashing frequency of the LED daytime running lights of the vehicle 20, thereby ensuring that the vehicle 20 can send the light signal out all the day.
In other embodiments, as shown in fig. 7, the first device 31 of the vehicle 20 may also be configured to receive target information sent by the third device 33 of the vehicle 22, where the target information may specifically be vehicle information of the vehicle 22 or prompt information generated by the vehicle 22. The implementation manner and specific principle of the third device 33 for sending the target information are the same as those of the first device 31, and are not described herein again.
In this embodiment, the interleaving width of the packet interleaving is updated according to the state of the wireless channel, and the updated interleaving width is sent to the interleaver and the deinterleaver, where the interleaver and the deinterleaver can perform packet interleaving and deinterleaving according to the updated interleaving width, respectively, and the interleaving width of the packet interleaving can change with the state of the wireless channel, thereby reducing the interleaving memory loss and the communication delay.
The embodiment of the invention provides an information processing method. Fig. 8 is a flowchart of an information processing method according to another embodiment of the present invention. As shown in fig. 8, the method in this embodiment may include:
step S701, receiving an optical signal sent by a first carrier, where the optical signal is generated by the first carrier according to the encoded target information.
In this embodiment, the first carrier may specifically be a first vehicle, and the second carrier may specifically be a second vehicle. The first vehicle may be a vehicle 20 as shown in fig. 2, the second vehicle may be a vehicle 21 as shown in fig. 2, the vehicle 20 and the vehicle 21 travel in the same lane, the first device is provided in the vehicle 20, and the second device is provided in the vehicle 21. The first device of the vehicle 20 is configured to send target information to be sent by the vehicle 20, for example, vehicle information of the vehicle 20, prompt information generated by the vehicle 20, and the like, to vehicles around the vehicle 20, for example, the vehicle 21, where the vehicle information of the vehicle 20 may specifically be identification information of the vehicle 20, for example, a vehicle identification number, an engine identification number, and the like, and the prompt information may specifically be information that the vehicle 20 prompts surrounding vehicles to pay attention to meeting, pay attention to overtaking, pay attention to turning, and the like. For example, the first device generates an optical signal in accordance with the method described in the above embodiment and transmits the optical signal to a surrounding vehicle such as the vehicle 21 through a wireless channel such as air.
Optionally, the receiving the optical signal sent by the first carrier includes: and receiving the optical signal sent by the first carrier through a photosensitive element arranged on a second carrier.
For example, the optical signal is transmitted via a wireless channel and received by the light sensing element of the second device 32.
Step S702, generating the encoded target information according to the optical signal.
Optionally, the generating the encoded target information according to the optical signal includes: converting the optical signal into an electrical signal, where the electrical signal is a modulation signal corresponding to the encoded target information, and the modulation signal is obtained by dividing the encoded target information into a plurality of parallel data streams and modulating the plurality of parallel data streams by using mutually orthogonal carriers; and demodulating the modulation signal to obtain the coded target information.
For example, the photodetector of the second device 32 performs photoelectric conversion on the optical signal to obtain a converted electrical signal, the converted electrical signal is analog-to-digital converted by an analog-to-digital converter, and then demodulated by a demodulator to obtain encoded target information.
Step S703, decoding the encoded target information to obtain the target information.
Optionally, decoding the encoded target information to obtain the target information includes the following feasible implementation manners:
one possible implementation is: and de-interleaving the coded target information to obtain the target information.
Another possible implementation is: and de-interleaving and error correction decoding are carried out on the coded target information to obtain the target information. For example, the demodulated information is deinterleaved by a deinterleaver and then RS error correction decoded by an error correction decoder to obtain the target information transmitted by the vehicle 20
Yet another possible implementation is: decoding the coded target information according to a first decoder, a second decoder, an interleaver and a de-interleaver to obtain the target information; wherein the first decoder corresponds to a first encoder of the target information when encoding; the second decoder corresponds to a second encoder of the target information during encoding; the interleaving rule of the interleaver is consistent with the interleaving rule of the target information during encoding. For example, the first decoder corresponds to the first encoder shown in fig. 3, the second decoder corresponds to the second encoder shown in fig. 3, and the interleaving rule of the interleaver used for decoding is identical to the interleaving rule of the interleaver at the time of encoding shown in fig. 3.
In other embodiments, the method further comprises: receiving the updated interleaving width sent by the first carrier; the deinterleaving the encoded target information includes: and de-interleaving the coded target information according to the updated interleaving width.
As shown in fig. 6, the first apparatus 31 may further include a channel estimator for estimating a state of the wireless channel and updating an interleaving width of the packet interleaving according to the state of the wireless channel, that is, in the present embodiment, the interleaving width of the packet interleaving may vary with the state of the wireless channel. The channel estimator transmits the updated interleaving width of the packet interleaving to the interleaver of the first device 31 and the deinterleaver of the second device 32, so that the deinterleaver of the second device 32 performs deinterleaving using the updated interleaving width after the vehicle 21 receives the target information transmitted from the vehicle 20.
In this embodiment, the optical signal transmitted by the first carrier is received by the second carrier, the encoded target information is generated according to the optical signal, and the encoded target information is decoded to obtain the target information, the optical signal can be directly transmitted in the air without a transmission medium such as an optical fiber or a wired channel, thereby implementing V2V communication between carriers, and since the bandwidth of visible light is larger than that of radio waves, the transmission capacity of the V2V communication network between carriers is improved.
An embodiment of the present invention provides an information processing apparatus, which may specifically be the first apparatus in the above embodiments. Fig. 9 is a block diagram of an information processing apparatus according to an embodiment of the present invention, and as shown in fig. 9, an information processing apparatus 80 includes: a memory 81, a processor 82, and a transmitting unit 83; the memory 81 is used for storing program codes; a processor 82, calling the program code, for performing the following when the program code is executed: acquiring target information to be sent of a first carrier; coding the target information to obtain coded target information; generating an optical signal according to the encoded target information; the transmitting unit 83 is configured to transmit the optical signal through a wireless channel.
Optionally, when the processor 82 encodes the target information to obtain encoded target information, the processor is specifically configured to: and grouping and interleaving the target information to obtain the coded target information.
Optionally, when the processor 82 encodes the target information to obtain encoded target information, the processor is specifically configured to: and carrying out error correction coding and packet interleaving on the target information to obtain coded target information.
Optionally, the processor 82 is further configured to: and updating the interleaving width of the packet interleaving according to the state of the wireless channel.
Optionally, the processor 82 is further configured to: the updated interleaving width is sent to the second bearer by a sending unit 83.
Optionally, when the processor 82 encodes the target information to obtain encoded target information, the processor is specifically configured to: coding an information sequence corresponding to the target information through a first coder to obtain a first coding sequence; coding an information sequence corresponding to the target information through an interleaver and a second coder to obtain a second coding sequence; and multiplexing the first coding sequence and the second coding sequence after carrying out puncturing processing on the first coding sequence and the second coding sequence with the target information to obtain the coded target information.
Optionally, when the processor 82 generates the optical signal according to the encoded target information, the processor is specifically configured to: dividing the encoded target information into a plurality of parallel data streams; modulating each data stream in the multiple parallel data streams by adopting a carrier to obtain a modulation signal, wherein the carriers corresponding to each data stream are mutually orthogonal; obtaining a modulation signal corresponding to the coded target information according to a modulation signal corresponding to each data stream; and converting the modulation signal corresponding to the coded target information into the optical signal.
Optionally, the sending unit 83 is integrated in the light source of the first carrier.
Optionally, the first carrier comprises a first vehicle and the second carrier comprises a second vehicle; the light source includes at least one of: the headlamp of first vehicle, LED daytime running light.
The specific principle and implementation of the information processing apparatus provided by the embodiment of the present invention are similar to those of the above embodiments, and are not described herein again.
In this embodiment, target information to be sent by a first carrier is acquired, the target information is encoded to obtain encoded target information, an optical signal is generated according to the encoded target information, and the optical signal is sent to a second carrier through a wireless channel, where the optical signal can be directly transmitted in the air without a transmission medium of a wired channel such as an optical fiber, so that V2V communication between carriers is realized, and since the bandwidth of visible light is larger than that of radio waves, the transmission capacity of a V2V communication network between carriers is improved.
An embodiment of the present invention provides an information processing apparatus, which may specifically be the second apparatus in the above embodiments. Fig. 10 is a block diagram of an information processing apparatus according to an embodiment of the present invention, and as shown in fig. 10, an information processing apparatus 90 includes: a memory 91, a processor 92, and a receiving unit 93; the memory 91 is used to store program codes; a processor 92, calling the program code, and when the program code is executed, performing the following: receiving, by a receiving unit 93, an optical signal sent by a first carrier, where the optical signal is generated by the first carrier according to the encoded target information; generating the coded target information according to the optical signal; and decoding the coded target information to obtain the target information.
Optionally, when the processor 92 decodes the encoded target information to obtain the target information, the processor is specifically configured to: and de-interleaving the coded target information to obtain the target information.
Optionally, when the processor 92 decodes the encoded target information to obtain the target information, the processor is specifically configured to: and de-interleaving and error correction decoding are carried out on the coded target information to obtain the target information.
Optionally, the processor 92 is further configured to: receiving, by a receiving unit 93, the updated interleaving width sent by the first bearer; when the processor 92 deinterleaves the encoded target information, it is specifically configured to: and de-interleaving the coded target information according to the updated interleaving width.
Optionally, when the processor 92 decodes the encoded target information to obtain the target information, the processor is specifically configured to: decoding the coded target information according to a first decoder, a second decoder, an interleaver and a de-interleaver to obtain the target information; wherein the first decoder corresponds to a first encoder of the target information when encoding; the second decoder corresponds to a second encoder of the target information during encoding; the interleaving rule of the interleaver is consistent with the interleaving rule of the target information during encoding.
Optionally, when the processor 92 generates the encoded target information according to the optical signal, it is specifically configured to: converting the optical signal into an electrical signal, where the electrical signal is a modulation signal corresponding to the encoded target information, and the modulation signal is obtained by dividing the encoded target information into a plurality of parallel data streams and modulating the plurality of parallel data streams by using mutually orthogonal carriers; and demodulating the modulation signal to obtain the coded target information.
Optionally, the receiving unit 93 comprises a photosensitive element provided on a second carrier.
The specific principle and implementation of the information processing apparatus provided by the embodiment of the present invention are similar to those of the above embodiments, and are not described herein again.
In this embodiment, the optical signal transmitted by the first carrier is received by the second carrier, the encoded target information is generated according to the optical signal, and the encoded target information is decoded to obtain the target information, the optical signal can be directly transmitted in the air without a transmission medium such as an optical fiber or a wired channel, thereby implementing V2V communication between carriers, and since the bandwidth of visible light is larger than that of radio waves, the transmission capacity of the V2V communication network between carriers is improved.
In addition, the embodiment also provides a carrier, and the carrier can be a vehicle. The carrier includes: a body; the power system is arranged on the machine body and used for providing power; and the information processing apparatus described in the above embodiments.
Further, the present embodiment also provides a computer-readable storage medium on which a computer program is stored, the computer program being executed by a processor to implement the information processing method described in the above embodiment.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. 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 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, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (34)
1. An information processing method characterized by comprising:
acquiring target information to be sent of a first carrier;
coding the target information to obtain coded target information;
and generating an optical signal according to the coded target information, and transmitting the optical signal through a wireless channel.
2. The method of claim 1, wherein the encoding the target information to obtain encoded target information comprises:
and grouping and interleaving the target information to obtain the coded target information.
3. The method of claim 1, wherein the encoding the target information to obtain encoded target information comprises:
and carrying out error correction coding and packet interleaving on the target information to obtain coded target information.
4. A method according to claim 2 or 3, characterized in that the method further comprises:
and updating the interleaving width of the packet interleaving according to the state of the wireless channel.
5. The method of claim 4, further comprising:
and sending the updated interleaving width to a second carrier.
6. The method of claim 1, wherein the encoding the target information to obtain encoded target information comprises:
coding an information sequence corresponding to the target information through a first coder to obtain a first coding sequence;
coding an information sequence corresponding to the target information through an interleaver and a second coder to obtain a second coding sequence;
and multiplexing the first coding sequence and the second coding sequence after carrying out puncturing processing on the first coding sequence and the second coding sequence with the target information to obtain the coded target information.
7. The method according to any one of claims 1-6, wherein said generating an optical signal from said encoded target information comprises:
dividing the encoded target information into a plurality of parallel data streams;
modulating each data stream in the multiple parallel data streams by adopting a carrier to obtain a modulation signal, wherein the carriers corresponding to each data stream are mutually orthogonal;
obtaining a modulation signal corresponding to the coded target information according to a modulation signal corresponding to each data stream;
and converting the modulation signal corresponding to the coded target information into the optical signal.
8. The method of any of claims 1-7, wherein said transmitting said optical signal over a wireless channel comprises:
and transmitting the optical signal to a second carrier through a wireless channel by using an optical source arranged on the first carrier.
9. The method of claim 8, wherein the first carrier comprises a first vehicle and the second carrier comprises a second vehicle;
the light source includes at least one of:
the headlamp of first vehicle, LED daytime running light.
10. An information processing method characterized by comprising:
receiving an optical signal sent by a first carrier, wherein the optical signal is generated by the first carrier according to the encoded target information;
generating the coded target information according to the optical signal;
and decoding the coded target information to obtain the target information.
11. The information processing method according to claim 10, wherein said decoding the encoded target information to obtain the target information includes:
and de-interleaving the coded target information to obtain the target information.
12. The information processing method according to claim 10, wherein said decoding the encoded target information to obtain the target information includes:
and de-interleaving and error correction decoding are carried out on the coded target information to obtain the target information.
13. The information processing method according to claim 11 or 12, characterized by further comprising:
receiving the updated interleaving width sent by the first carrier;
the deinterleaving the encoded target information includes:
and de-interleaving the coded target information according to the updated interleaving width.
14. The method of claim 10, wherein the decoding the encoded target information to obtain the target information comprises:
decoding the coded target information according to a first decoder, a second decoder, an interleaver and a de-interleaver to obtain the target information;
wherein the first decoder corresponds to a first encoder of the target information when encoding;
the second decoder corresponds to a second encoder of the target information during encoding;
the interleaving rule of the interleaver is consistent with the interleaving rule of the target information during encoding.
15. The method according to any one of claims 10-14, wherein said generating the encoded target information from the optical signal comprises:
converting the optical signal into an electrical signal, where the electrical signal is a modulation signal corresponding to the encoded target information, and the modulation signal is obtained by dividing the encoded target information into a plurality of parallel data streams and modulating the plurality of parallel data streams by using mutually orthogonal carriers;
and demodulating the modulation signal to obtain the coded target information.
16. The method according to any of claims 10-15, wherein said receiving the optical signal transmitted by the first carrier comprises:
and receiving the optical signal sent by the first carrier through a photosensitive element arranged on a second carrier.
17. An information processing apparatus characterized by comprising: a memory, a processor, and a transmitting unit;
the memory is used for storing program codes;
the processor, invoking the program code, when executed, is configured to:
acquiring target information to be sent of a first carrier;
coding the target information to obtain coded target information;
generating an optical signal according to the encoded target information;
the transmitting unit is used for transmitting the optical signal through a wireless channel.
18. The information processing apparatus as claimed in claim 17, wherein the processor, when encoding the object information to obtain encoded object information, is specifically configured to:
and grouping and interleaving the target information to obtain the coded target information.
19. The information processing apparatus as claimed in claim 17, wherein the processor, when encoding the object information to obtain encoded object information, is specifically configured to:
and carrying out error correction coding and packet interleaving on the target information to obtain coded target information.
20. The information processing apparatus according to claim 18 or 19, wherein the processor is further configured to:
and updating the interleaving width of the packet interleaving according to the state of the wireless channel.
21. The information processing apparatus of claim 20, wherein the processor is further configured to:
and sending the updated interleaving width to a second carrier through the sending unit.
22. The information processing apparatus as claimed in claim 17, wherein the processor, when encoding the object information to obtain encoded object information, is specifically configured to:
coding an information sequence corresponding to the target information through a first coder to obtain a first coding sequence;
coding an information sequence corresponding to the target information through an interleaver and a second coder to obtain a second coding sequence;
and multiplexing the first coding sequence and the second coding sequence after carrying out puncturing processing on the first coding sequence and the second coding sequence with the target information to obtain the coded target information.
23. The information processing apparatus according to any one of claims 17 to 22, wherein the processor, when generating the optical signal based on the encoded target information, is specifically configured to:
dividing the encoded target information into a plurality of parallel data streams;
modulating each data stream in the multiple parallel data streams by adopting a carrier to obtain a modulation signal, wherein the carriers corresponding to each data stream are mutually orthogonal;
obtaining a modulation signal corresponding to the coded target information according to a modulation signal corresponding to each data stream;
and converting the modulation signal corresponding to the coded target information into the optical signal.
24. The information processing apparatus according to any one of claims 17 to 23, wherein the transmission unit is integrated in a light source of the first carrier.
25. The information processing apparatus according to claim 24, wherein the first carrier includes a first vehicle, and the second carrier includes a second vehicle;
the light source includes at least one of:
the headlamp of first vehicle, LED daytime running light.
26. An information processing apparatus characterized by comprising: a memory, a processor, and a receiving unit;
the memory is used for storing program codes;
the processor, invoking the program code, when executed, is configured to:
receiving, by the receiving unit, an optical signal sent by a first carrier, where the optical signal is generated by the first carrier according to the encoded target information;
generating the coded target information according to the optical signal;
and decoding the coded target information to obtain the target information.
27. The information processing apparatus of claim 26, wherein when the processor decodes the encoded target information to obtain the target information, the processor is specifically configured to:
and de-interleaving the coded target information to obtain the target information.
28. The information processing apparatus of claim 26, wherein when the processor decodes the encoded target information to obtain the target information, the processor is specifically configured to:
and de-interleaving and error correction decoding are carried out on the coded target information to obtain the target information.
29. The information processing apparatus of claim 27 or 28, wherein the processor is further configured to:
receiving, by the receiving unit, the updated interleaving width sent by the first bearer;
when the processor deinterleaves the encoded target information, the processor is specifically configured to:
and de-interleaving the coded target information according to the updated interleaving width.
30. The information processing apparatus of claim 26, wherein when the processor decodes the encoded target information to obtain the target information, the processor is specifically configured to:
decoding the coded target information according to a first decoder, a second decoder, an interleaver and a de-interleaver to obtain the target information;
wherein the first decoder corresponds to a first encoder of the target information when encoding;
the second decoder corresponds to a second encoder of the target information during encoding;
the interleaving rule of the interleaver is consistent with the interleaving rule of the target information during encoding.
31. The information processing apparatus according to any one of claims 26 to 30, wherein the processor, when generating the encoded target information from the optical signal, is specifically configured to:
converting the optical signal into an electrical signal, where the electrical signal is a modulation signal corresponding to the encoded target information, and the modulation signal is obtained by dividing the encoded target information into a plurality of parallel data streams and modulating the plurality of parallel data streams by using mutually orthogonal carriers;
and demodulating the modulation signal to obtain the coded target information.
32. The information processing apparatus according to any one of claims 26 to 31, wherein the receiving unit includes a photosensitive element provided on a second carrier.
33. A carrier, comprising:
a body;
the power system is arranged on the machine body and used for providing power; and
the information processing apparatus of any one of claims 17 to 32.
34. A computer-readable storage medium, having stored thereon a computer program for execution by a processor to perform the method of any one of claims 1-16.
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| PCT/CN2018/109070 WO2020062231A1 (en) | 2018-09-30 | 2018-09-30 | Information processing method and apparatus, carrier, and storage medium |
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| NO318739B1 (en) * | 2001-03-29 | 2005-05-02 | Brabrand Teknologi Utvikling A | Remote control device and remote control system for toys or model driving toys |
| CN102013174B (en) * | 2010-11-18 | 2015-12-02 | 华东理工大学 | Based on the vehicle collision prewarning system of optical communication |
| CN103729898B (en) * | 2013-12-20 | 2016-01-20 | 江苏大学 | Based on the ETC visible light radio communication cut-in method of LED car lamp |
| CN104539738B (en) * | 2015-01-22 | 2018-04-27 | 重庆邮电大学 | A kind of vehicle self-organizing network of LED communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011149254A2 (en) * | 2010-05-25 | 2011-12-01 | 영남대학교 산학협력단 | Transmitter for wireless optical communication system using light source |
| US20170330457A1 (en) * | 2016-05-10 | 2017-11-16 | Zte Corporation | Techniques for vehicle based message transmission and reception |
| CN106059611A (en) * | 2016-07-22 | 2016-10-26 | 云传电扬科技（北京）有限责任公司 | Automobile light voice prompt system based on visible light communication and communication method thereof |
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