CN118314766A - Communication method and communication system for vehicle - Google Patents
Communication method and communication system for vehicle Download PDFInfo
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- CN118314766A CN118314766A CN202410419958.8A CN202410419958A CN118314766A CN 118314766 A CN118314766 A CN 118314766A CN 202410419958 A CN202410419958 A CN 202410419958A CN 118314766 A CN118314766 A CN 118314766A
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- 238000004891 communication Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 53
- 239000000523 sample Substances 0.000 claims abstract description 33
- 238000012512 characterization method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W60/00—Drive control systems specially adapted for autonomous road vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
- B60W2556/65—Data transmitted between vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Radar Systems Or Details Thereof (AREA)
- Traffic Control Systems (AREA)
Abstract
The present disclosure relates to a communication method for a vehicle, wherein the communication method comprises at least the steps of: acquiring, by the first vehicle, probe information about the second vehicle, the probe information including at least an information type and a probe value; transmitting the probe information by the radar device of the first vehicle in the form of a modulated wave having a plurality of spaced apart frequency and/or amplitude modulated pulse signals, wherein the pulse signals represent the probe values and the interval sections between the pulse signals represent the information types; the modulated wave is received and demodulated by a receiving device of the second vehicle to acquire the probe information. The present disclosure also relates to a communication system for a vehicle. The detection information on the surrounding vehicle, which can effectively improve the driving assist function, can be shared to the surrounding vehicle at a cost advantageous.
Description
Technical Field
The present disclosure relates to the technical field of vehicle communication, and in particular, to a communication method for a vehicle. The disclosure also relates to a corresponding communication system for a vehicle.
Background
In recent years, with the development of technology and the progress of living standard, the demands of people on the intelligence and the safety of vehicles are increasing. In order to optimize the autopilot function of the vehicle, probe information of surrounding vehicles should be acquired in addition to the probe of the vehicle itself for the surrounding environment, which requires communication between the vehicles.
Currently, specific components such as an antenna, a transmitter, a receiver, and the like are additionally provided for communication between vehicles, which complicates the structure of the vehicles and increases manufacturing costs.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
It is therefore an object of the present disclosure to propose an improved communication method for vehicles, by means of which communication between vehicles can be achieved by means of radar devices of the vehicles themselves, without the need for additional provision of special communication components, so that detection information about surrounding vehicles, which can effectively improve the driving assistance function, is shared to surrounding vehicles in a cost-effective manner. It is also an object of the present disclosure to propose an improved communication system for a vehicle.
According to a first aspect of the present disclosure, there is provided a communication method for a vehicle, wherein the communication method includes at least the steps of:
S1: acquiring, by the first vehicle, probe information about the second vehicle, the probe information including at least an information type and a probe value;
S2: transmitting the probe information by the radar device of the first vehicle in the form of a modulated wave having a plurality of spaced apart frequency and/or amplitude modulated pulse signals, wherein the pulse signals represent the probe values and the interval sections between the pulse signals represent the information types;
S3: the modulated wave is received and demodulated by a receiving device of the second vehicle to acquire the probe information.
In contrast to the related art, in the communication method for vehicles according to the present disclosure, detection information regarding the second vehicle is transmitted in the form of a modulated wave by the radar device of the first vehicle, which may include an information type and a detection value, which is characterized by a frequency-modulated and/or amplitude-modulated pulse signal of the modulated wave, and which is characterized by an interval section between pulse signals of the modulated wave, which is received and demodulated by the second vehicle, whereby information sharing can be achieved by the radar device of the vehicle itself without providing an additional communication component for communication between vehicles, which enables communication between vehicles to be achieved at a cost advantage. In addition, the modulated wave emitted by the radar device can transmit detection values of various information types, which can significantly improve the communication function using the radar device and enable the transmission of more detection information, which can be used to improve the driving assistance function or the automatic driving function.
According to an exemplary embodiment of the present disclosure, the information type is selected from the group consisting of: a distance or speed of the first vehicle relative to the second vehicle, a distance or speed of the second vehicle relative to a third vehicle of an adjacent lane, a lateral distance of the second vehicle relative to a traffic participant or traffic safety facility.
According to an exemplary embodiment of the present disclosure, the radar apparatus includes at least one of the following group: millimeter wave radar, laser radar, ultrasonic radar, infrared radar.
According to an exemplary embodiment of the present disclosure, the detection information is acquired by the radar device of the first vehicle or another detection device.
According to an exemplary embodiment of the present disclosure, interval sections of different durations among the interval sections represent 0 and 1, respectively, and information characterization is achieved by a specific combination of a plurality of interval sections.
According to an exemplary embodiment of the present disclosure, when the detection value of a specific information type is smaller than a risk threshold, the detection information additionally contains alarm information, which is characterized by the interval section.
According to an exemplary embodiment of the present disclosure, the second vehicle is located in the same lane as the first vehicle and the second vehicle is located in front of the first vehicle.
According to a second aspect of the present disclosure, there is provided a communication system for a vehicle, wherein the communication system includes at least:
-a radar device configured at least to be adapted to transmit detection information in the form of a modulated wave having a plurality of spaced apart frequency and/or amplitude modulated pulse signals, wherein the pulse signals are indicative of detection values of the detection information, and wherein a section of intervals between the pulse signals is indicative of an information type of the detection information; and
-Receiving means configured to receive and demodulate modulated waves from other vehicles.
According to an exemplary embodiment of the present disclosure, the radar apparatus includes at least one of the following group: millimeter wave radar, laser radar, ultrasonic radar, infrared radar; and/or the communication system comprises a detection device configured to be adapted to acquire the detection information.
According to an exemplary embodiment of the present disclosure, the radar device is arranged on a roof or a front bumper of the vehicle; and/or the receiving means is arranged at the rear side of the vehicle and integrated in an anti-collision radar or blind spot detection probe of the vehicle or separately provided.
Drawings
The principles, features and advantages of the present disclosure may be better understood by describing the present disclosure in more detail with reference to the drawings. The drawings include:
FIG. 1 shows a schematic flow chart of a communication method for a vehicle according to one exemplary embodiment of the disclosure;
fig. 2 shows a schematic view of a modulated wave transmitted in a communication method according to an exemplary embodiment of the present disclosure;
FIG. 3 illustrates a schematic block diagram of a communication system for a vehicle according to an exemplary embodiment of the present disclosure;
Fig. 4 shows a schematic view of a vehicle communication scenario according to an exemplary embodiment of the present disclosure.
Detailed Description
In order to make the technical problems, technical solutions and advantageous technical effects to be solved by the present disclosure more apparent, the present disclosure will be further described in detail with reference to the accompanying drawings and a plurality of exemplary embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the present disclosure.
It should be appreciated that the expressions "first", "second", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any particular order of number of technical features indicated. Features defining "first", "second" or "first" may be expressed or implied as including at least one such feature.
In this context, the meaning of "plurality" is at least two, e.g., two, three, etc., unless explicitly defined otherwise.
Fig. 1 shows a schematic flow chart of a communication method for a vehicle according to an exemplary embodiment of the present disclosure. Fig. 2 shows a schematic view of a modulated wave transmitted in a communication method according to an exemplary embodiment of the present disclosure.
As shown in fig. 1, the communication method for a vehicle according to the present disclosure includes at least the steps of:
s1: acquiring, by the first vehicle, detection information about the second vehicle, the detection information including at least an information type and a detection value, wherein the detection information about the second vehicle may be distance or speed information of the second vehicle detected by the first vehicle with respect to a surrounding reference object;
S2: transmitting the detection information by the radar device of the first vehicle in the form of a modulated wave W, which is formed by modulating the carrier signal and has a plurality of frequency-modulated and/or amplitude-modulated pulse signals P, which are each separated by a spacing section T, wherein, as shown in fig. 2, boxes indicate the pulse signals P, the gaps between the boxes indicate the spacing sections T, wherein the pulse signals P represent the detection values of the detection information by frequency changes and/or amplitude changes, and the spacing sections T represent the information type of the detection information by means of a duration, for example;
S3: the modulated wave W is received and demodulated by the receiving device of the second vehicle to acquire the probe information acquired by the first vehicle, based on which the assisted driving function or the automatic driving function of the second vehicle can be more accurately implemented.
In this way, information sharing can be achieved in a cost-effective manner by means of the radar device of the first vehicle itself and the receiving device of the second vehicle itself, without additional communication components being provided for the communication between the vehicles. Furthermore, the spaced apart pulse signals of the modulated wave may convey different types of detection information, which may be used to improve the driving assistance function or the autopilot function, which can significantly enhance the communication function with the radar device.
Illustratively, the information type of the probe information is selected from the group consisting of: distance or speed of the first vehicle relative to the second vehicle, distance or speed of the second vehicle relative to a third vehicle of an adjacent lane, and lateral distance of the second vehicle relative to a traffic participant or traffic safety facility. For example, the traffic participant may be a pedestrian or a two-wheeled vehicle, etc., and the traffic safety facility may be a guardrail, a curbstone, a traffic cone, etc. Of course, other types of information that would be considered useful by those skilled in the art are also contemplated.
Illustratively, different ones of the interval sections T of the modulated wave W represent 0 and 1, respectively, with information characterization being achieved by a specific combination of the plurality of interval sections. As shown in fig. 2, a first, relatively short interval section T1 represents, for example, 1, and a second, relatively long interval section T2 represents, for example, 0, by means of an permutation and combination of the first interval section T1 and the second interval section T2, different information types can be characterized. For example, the interval section shown in FIG. 2 represents (1, 0), which may characterize the distance of the first vehicle relative to the second vehicle; whereas for the case of the second interval section T2 and interval section T1 in succession, such interval sections represent (0, 1), which may characterize the distance of the second vehicle relative to the third vehicle of the adjacent lane, and so on. Whereby different types of detection information can be transferred by means of the modulated wave W.
Illustratively, the radar apparatus of the first vehicle comprises at least one of the group of: millimeter wave radar, laser radar, ultrasonic radar, infrared radar. Accordingly, the modulated wave W is configured in the form of millimeter wave, laser beam, ultrasonic wave, or infrared ray. In particular, the radar apparatus may be integrated with various radars that respectively emit modulated waves, which may improve communication accuracy.
Illustratively, in step S1, the probe information is acquired by a radar device of the first vehicle, which radar device is, for example, a millimeter wave radar, and the probe information is emitted in the form of a modulated wave W by the radar device in step S2. However, it is also conceivable that the detection information is acquired by a further detection device of the first vehicle, which may be a radar, for example a lidar, or else a camera-based detection device, which is different from the radar device.
For example, if the detection value of a specific information type, for example the distance of the second vehicle from the third vehicle of the adjacent lane, is smaller than the danger threshold value, the detection information additionally contains warning information, which can be characterized by the interval section T of the modulated wave W. When the second vehicle receives the modulated wave W and demodulates the alarm information, the second vehicle can be prompted to take countermeasures faster to avoid the occurrence of accidents as much as possible.
For example, the second vehicle is located in the same lane as the first vehicle and the second vehicle is located in front of the first vehicle. It is also possible that the second vehicle is located in front of the first vehicle in a different lane than the first vehicle.
Fig. 3 shows a schematic block diagram of a communication system 100 for a vehicle according to an exemplary embodiment of the present disclosure.
As shown in fig. 3, the communication system 100 comprises a radar device 10, which radar device 10 is at least configured for transmitting probe information acquired by a vehicle in the form of a modulated wave W having a plurality of spaced apart frequency-modulated and/or amplitude-modulated pulse signals P, wherein the pulse signals P represent probe values of the probe information and the interval sections T between the pulse signals P represent information types of the probe information. Illustratively, the radar apparatus 10 may include at least one of the following group: millimeter wave radar, laser radar, ultrasonic radar, infrared radar. It is also possible that the radar apparatus 10 is integrated with a plurality of radars. The radar device 10 may also be configured to acquire detection information about a preceding vehicle. For this purpose, the radar device 10 may be arranged on the roof or front bumper of the vehicle. Of course, additional mounting locations that would be considered to be of interest by those skilled in the art are also contemplated.
As shown in fig. 3, the communication system 100 includes a receiving device 20, the receiving device 20 being configured to receive and demodulate a modulated wave W from other vehicles to acquire probe information about the own vehicle transmitted by the other vehicles, the vehicles being able to optimize a driving assist function or an automatic driving function based on the probe information. For example, the receiving device 20 may be arranged at the rear side of the vehicle and integrated in an anti-collision radar or blind spot detection probe of the vehicle. It is also possible that the receiving means 20 are provided separately. Here, the radar device 10 of the vehicle is connected in communication with the receiving device 20 of the other vehicle, in particular, the preceding vehicle, and the receiving device 20 of the vehicle is connected in communication with the radar device 10 of the other vehicle, in particular, the following vehicle.
Illustratively, as shown in FIG. 3, the communication system 100 further includes a detection device 30, the detection device 30 being configured to obtain detection information, particularly regarding a preceding vehicle. The detection device 30 may be a radar different from the radar device 10, or may be another type of sensor.
Fig. 4 shows a schematic view of a vehicle communication scenario according to an exemplary embodiment of the present disclosure.
As shown in fig. 4, the first vehicle 1 acquires probe information about the second vehicle 2, which is the distance of the second vehicle 2 relative to the third vehicle 3 of the adjacent lane, the second vehicle 2 being located in the same lane as the first vehicle 1 and the second vehicle 2 being located in front of the first vehicle 1. Then, the first vehicle 1 transmits the acquired probe information in the form of modulated waves to the second vehicle 2 and the third vehicle 3 in front, respectively, through the radar device 10, for example, a millimeter wave radar, which are disposed on the front bumper, and the second vehicle 2 and the third vehicle 3 receive and demodulate the modulated waves, respectively, through the respective receiving devices 20, to acquire the probe information. In particular, when the distance of the second vehicle 2 from the third vehicle 3 of the adjacent lane is smaller than the danger threshold value, the detection information additionally contains warning information, and the second vehicle 2 and the third vehicle 3 can stop changing lanes or return to the center of the lane in time after acquiring the warning information, thereby reliably avoiding collision accidents.
The foregoing explanation of the embodiments only describes the present disclosure in the framework of the examples. Of course, the individual features of the embodiments can be freely combined with one another without departing from the framework of the disclosure, as long as they are technically meaningful.
Other advantages and alternative embodiments of the present disclosure will be apparent to those skilled in the art. Therefore, the disclosure is not to be limited in its broader aspects to the specific details, the representative structures, and illustrative embodiments shown and described. Rather, various modifications and substitutions may be made by those skilled in the art without departing from the basic spirit and scope of the disclosure.
Claims (10)
1. A communication method for a vehicle, characterized in that the communication method comprises at least the steps of:
S1: acquiring, by the first vehicle (1), probe information about the second vehicle (2), the probe information comprising at least an information type and a probe value;
S2: -transmitting the detection information in the form of a modulated wave (W) by a radar device (10) of the first vehicle (1), the modulated wave (W) having a plurality of spaced apart frequency-modulated and/or amplitude-modulated pulse signals (P), wherein the pulse signals (P) represent the detection values and the interval sections (T) between the pulse signals (P) represent the information type;
S3: -receiving and demodulating said modulated wave (W) by a receiving device (20) of said second vehicle (2) to obtain said detection information.
2. The communication method according to claim 1, wherein,
The information type is selected from the group of: -a distance or speed of the first vehicle (1) relative to the second vehicle (2), -a distance or speed of the second vehicle (2) relative to a third vehicle (3) of an adjacent lane, -a lateral distance of the second vehicle (2) relative to a traffic participant or traffic safety facility.
3. A communication method according to claim 1 or 2, characterized in that,
The radar apparatus (10) comprises at least one of the group: millimeter wave radar, laser radar, ultrasonic radar, infrared radar.
4. A communication method according to any of the preceding claims, characterized in that,
The detection information is acquired by the radar device (10) or a further detection device (30) of the first vehicle (1).
5. A communication method according to any of the preceding claims, characterized in that,
The different duration interval sections of the interval sections (T) represent 0 and 1 respectively, and information characterization is achieved through specific combinations of a plurality of interval sections (T).
6. A communication method according to any of the preceding claims, characterized in that,
When the detection value of a specific information type is smaller than a risk threshold, the detection information additionally contains alarm information, which is characterized by the interval section (T).
7. A communication method according to any of the preceding claims, characterized in that,
The second vehicle (2) is located in the same lane as the first vehicle (1) and the second vehicle (2) is located in front of the first vehicle (1).
8. A communication system (100) for a vehicle, the communication system (100) comprising at least:
-a radar device (10), the radar device (10) being at least configured to be adapted to transmit detection information in the form of a modulated wave (W) having a plurality of spaced apart frequency and/or amplitude modulated pulse signals (P), wherein the pulse signals (P) are indicative of detection values of the detection information, and wherein a section of intervals (T) between the pulse signals (P) is indicative of an information type of the detection information; and
-Receiving means (20), said receiving means (20) being configured to be adapted to receive and demodulate modulated waves (W) from other vehicles.
9. The communication system (100) of claim 8, wherein,
The radar apparatus (10) comprises at least one of the group: millimeter wave radar, laser radar, ultrasonic radar, infrared radar; and/or
The communication system (100) comprises a detection device (30) configured to be adapted to obtain the detection information.
10. The communication system (100) according to claim 8 or 9, characterized in that,
The radar device (10) is arranged on the roof or front bumper of the vehicle; and/or
The receiving device (20) is arranged on the rear side of the vehicle and is integrated in an anti-collision radar or blind spot detection probe of the vehicle or is provided separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410419958.8A CN118314766A (en) | 2024-04-09 | 2024-04-09 | Communication method and communication system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410419958.8A CN118314766A (en) | 2024-04-09 | 2024-04-09 | Communication method and communication system for vehicle |
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| Publication Number | Publication Date |
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| CN118314766A true CN118314766A (en) | 2024-07-09 |
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| CN202410419958.8A Pending CN118314766A (en) | 2024-04-09 | 2024-04-09 | Communication method and communication system for vehicle |
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- 2024-04-09 CN CN202410419958.8A patent/CN118314766A/en active Pending
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