CN114205760A - Equipment communication method and device for multilayer pavement and storage medium - Google Patents
Equipment communication method and device for multilayer pavement and storage medium Download PDFInfo
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- CN114205760A CN114205760A CN202111452397.4A CN202111452397A CN114205760A CN 114205760 A CN114205760 A CN 114205760A CN 202111452397 A CN202111452397 A CN 202111452397A CN 114205760 A CN114205760 A CN 114205760A
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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]
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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
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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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
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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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]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application is applicable to the technical field of intelligent traffic and provides a device communication method and device for a multilayer pavement and a computer readable storage medium. The method is applied to the vehicle-mounted equipment and comprises the following steps: acquiring the air pressure of the position of the vehicle-mounted equipment; receiving broadcast messages from other equipment, wherein the broadcast messages comprise the air pressure of the positions of the other equipment; determining the pressure difference between the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of other equipment; and if the pressure difference is within the preset range, determining that the vehicle-mounted equipment and other equipment are on the same layer of road surface. The vehicle-mounted equipment can determine other equipment on the same layer of road surface according to the air pressure, communication can be achieved accordingly, route calculation and positioning correction are not needed, and a large amount of calculation is reduced; meanwhile, the influence of false response to the message on traffic safety and user experience caused by communication crosstalk can be avoided, and the communication reliability and pertinence can be improved.
Description
Technical Field
The application belongs to the technical field of intelligent traffic, and particularly relates to a device communication method and device for a multilayer pavement and a computer readable storage medium.
Background
With the rapid development of the intelligent transportation industry, the application requirements for a specific scenario of V2X (vehicle to environment information exchange) gradually increase. In a multilayer road surface (such as a viaduct, an overpass, an underground tunnel and the like), an upper lane and a lower lane are criss-cross, a traditional V2X antenna is an omnidirectional antenna, a signal range of a V2X road side base station on one road may cover a plurality of upper lanes and lower lanes, and vehicles on one lane are easy to confuse and receive traffic information sent by V2X road side base stations on other lanes, so that traffic safety is affected.
At present, for the judgment of the road surface layer where the vehicle is located on the multilayer road surface, the position of the vehicle is mainly deduced according to the passing route information of the vehicle, and if the GNSS signal is not good or the route runs in parallel, the positioning information needs to be repeatedly corrected to fall on the actual position. This approach is too dependent on GNSS signals and past data, and any GNSS signal loss at any moment will affect subsequent positioning results, and will seriously affect user experience.
Disclosure of Invention
The embodiment of the application provides a device communication method and device for a multilayer road surface and a computer readable storage medium, which can determine whether a vehicle-mounted device receiving a message and other devices sending the message are on the same layer of the road surface, and eliminate communication crosstalk.
In a first aspect, an embodiment of the present application provides an apparatus communication method for a multilayer road surface, which is applied to an on-vehicle apparatus, and the method includes:
acquiring the air pressure of the position of the vehicle-mounted equipment;
receiving broadcast messages from other equipment, wherein the broadcast messages comprise the air pressure of the position of the other equipment;
determining the pressure difference between the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of the other equipment;
and if the pressure difference is within a preset range, determining that the vehicle-mounted equipment and the other equipment are on the same layer of road surface.
It should be understood that when the differential pressure is not within the preset range, it is determined that the vehicle-mounted device and the other device are not on the same road surface, and the broadcast message of the other device is ignored.
Wherein the other equipment comprises roadside equipment and other vehicle-mounted equipment;
further, after it is determined that the vehicle-mounted device and the other device are on the same road surface, the method further includes:
correcting the lane mark of the vehicle-mounted equipment according to the lane mark in the broadcast message from the roadside equipment;
or feeding back the vehicle-mounted information of the vehicle-mounted equipment according to an information acquisition instruction in the broadcast message from the road side equipment;
or determining a driving strategy according to traffic road condition information in the broadcast message from the road side equipment or abnormal driving information in the broadcast message from the other vehicle-mounted equipment, wherein the driving strategy comprises deceleration and/or avoidance.
In a possible implementation manner of the first aspect, after obtaining the air pressure at the location where the vehicle-mounted device is located, the method further includes:
and packaging the air pressure of the position of the vehicle-mounted equipment into a message, and broadcasting.
In a second aspect, an embodiment of the present application provides an apparatus communication device for a multi-layer road surface, which is provided in an on-vehicle apparatus, and includes:
the first air pressure detection module is used for detecting the air pressure of the position where the vehicle-mounted equipment is located;
the receiving module is used for receiving broadcast messages from other equipment, wherein the broadcast messages comprise the air pressure of the positions of the other equipment;
and the judging module is used for determining the pressure difference between the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of the other equipment, and judging that the vehicle-mounted equipment and the other equipment are on the same layer of road surface when the pressure difference is within a preset range.
Further, the other devices comprise road side devices and other vehicle-mounted devices; the device communication device of the multilayer pavement further comprises:
the execution module is used for correcting the lane mark of the vehicle-mounted equipment according to the lane mark in the broadcast message from the roadside equipment when the vehicle-mounted equipment and the other equipment are determined to be on the same layer of road surface; or feeding back the vehicle-mounted information of the vehicle-mounted equipment according to an information acquisition instruction in the broadcast message from the road side equipment; or determining a driving strategy according to traffic road condition information in the broadcast message from the road side equipment or abnormal driving information in the broadcast message from the other vehicle-mounted equipment, wherein the driving strategy comprises deceleration and/or avoidance.
In a third aspect, an embodiment of the present application provides an apparatus communication method for a multilayer road surface, which is applied to a roadside apparatus, and the method includes:
acquiring the air pressure of the position of the roadside equipment;
and packaging the air pressure of the position of the road side equipment into a message, broadcasting the message so that the vehicle-mounted equipment can calculate the pressure difference according to the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of the road side equipment, and determining that the vehicle-mounted equipment and the road side equipment are on the same layer of road surface when the pressure difference is within a preset range.
The roadside equipment is provided with a waveform constraint antenna; packaging the air pressure of the position of the road side equipment into a message, and broadcasting, wherein the method comprises the following steps: and broadcasting and packaging the information of the air pressure of the position of the road side equipment through the waveform constraint antenna according to a preset time interval.
In a fourth aspect, an embodiment of the present application further provides an apparatus communication device for a multilayer road surface, which is disposed on a roadside apparatus, and includes:
the second air pressure detection module is used for acquiring the air pressure of the position of the roadside equipment;
and the second sending module is used for packaging the air pressure of the position of the road side equipment into a message and broadcasting the message so that the vehicle-mounted equipment can calculate the pressure difference according to the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of the road side equipment and determine that the vehicle-mounted equipment and the road side equipment are on the same layer of road surface when the pressure difference is within a preset range.
In a fifth aspect, an embodiment of the present application provides an on-vehicle device, including: a barometric pressure sensor, a processor and a memory and a computer program stored in said memory and executable on said processor;
the air pressure sensor is used for acquiring the air pressure of the position where the vehicle-mounted equipment is located;
the processor, when executing the computer program, implements the method according to any of the first aspects.
In a sixth aspect, an embodiment of the present application provides a roadside apparatus, including: a barometric pressure sensor, a processor and a memory and a computer program stored in said memory and executable on said processor;
the air pressure sensor is used for acquiring the air pressure of the position of the roadside equipment;
the processor, when executing the computer program, implements the method according to the third aspect.
In a seventh aspect, this application embodiment further provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the method according to any one of the first aspect, or implements the method according to any one of the third aspect.
In an eighth aspect, an embodiment of the present application provides a computer program product, which, when run on an in-vehicle device, causes the in-vehicle device to execute the method of any one of the above first aspects; causing the road side device to perform the method of any of the above third aspects when the computer program product is run on the road side device.
It is understood that the beneficial effects of the second aspect to the eighth aspect can be referred to the related description of the first aspect, and are not described herein again.
Compared with the prior art, the embodiment of the application has the advantages that: the vehicle-mounted equipment acquires the air pressure of the position where the vehicle-mounted equipment is located, and the air pressure of the position where the vehicle-mounted equipment is located and the air pressure of the position where other equipment is located are calculated to judge whether the vehicle-mounted equipment and other equipment are located on the same layer of road surface according to the air pressure difference. In the application scene of the multilayer pavement, the vehicle-mounted equipment determines other equipment on the same layer of pavement according to the air pressure, so that communication can be realized, route calculation and positioning correction are not needed, and a large amount of calculation is reduced; meanwhile, the influence of false response to the message on traffic safety and user experience caused by communication crosstalk can be avoided, and the communication reliability and pertinence can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flow chart of an apparatus communication method for a multi-layer pavement according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an apparatus communication device for a multi-layer pavement according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an in-vehicle device according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a roadside apparatus according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
The device communication method of the multilayer road surface provided by the embodiment of the application can be applied to complex road surface scenes such as viaducts, overpasses and the like, is executed by a device communication device of the multilayer road surface, and the device is composed of software and/or hardware and comprises two parts which are integrated on vehicle-mounted equipment and roadside equipment.
Fig. 1 is a schematic flow chart of an apparatus communication method for a multi-layer pavement according to this embodiment. As shown in fig. 1, the device communication method of the multilayer pavement comprises the following steps:
and S11, the vehicle-mounted equipment acquires the air pressure of the position where the vehicle-mounted equipment is located.
The vehicle-mounted equipment can be an ETC vehicle-mounted unit, a V2X vehicle-mounted unit, a driving recorder, a vehicle central control unit, a smart phone and the like.
The ETC vehicle-mounted unit, the V2X vehicle-mounted unit, the automobile data recorder, the smart phone and other vehicle-mounted equipment are provided with an air pressure sensor, or the vehicle is provided with the air pressure sensor, and the air pressure sensor is in communication connection with the automobile central control unit and can acquire the air pressure of the position of the vehicle-mounted equipment.
And S12, the roadside device acquires the air pressure of the position of the roadside device.
The roadside device may be an ETC roadside unit, a V2X roadside unit, or a roadside sensing system, or the like, corresponding to the vehicle-mounted device. The roadside equipment is provided with an air pressure sensor which can acquire the air pressure at the position of the roadside equipment.
And S13, the roadside device packages the air pressure of the position of the roadside device into the message and broadcasts the message.
The roadside device has the capability of communicating with the vehicle-mounted device, and can package the air pressure of the position of the roadside device into a message and broadcast the message. It is understood that other information may also be included in the message, such as a vehicle driving status request, an ETC transaction request, or a collaboration request.
The antenna of the conventional roadside apparatus generally radiates signals outwards in a spherical shape without space constraints in order to obtain a wider communication range. For an application scene of a multilayer road surface, the multilayer road surface has an upper-layer position relation and a lower-layer position relation in space, if the antenna configuration of the traditional road side equipment is adopted, the antenna signal of the road side equipment of the upper-layer road surface may cover the lower-layer road surface to form signal crosstalk, therefore, the wave-shaped constraint antenna is arranged on the road side equipment in the embodiment, the wave-shaped constraint antenna has space constraint capability when radiating a signal, and the signal is constrained in the space from the road surface to the upper-layer road surface and is oblate; and packaging the air pressure of the position of the road side equipment into a message, and broadcasting the message in which the air pressure of the position of the road side equipment is packaged through a waveform constraint antenna according to a preset time interval.
And S14, the vehicle-mounted device receives the broadcast message from other devices.
Other devices include roadside devices and other onboard devices; the broadcast message at least includes the air pressure of the location where the other device is located, and may further include other information, such as a vehicle driving state broadcast by the other vehicle-mounted device, a vehicle abnormal driving notification or a cooperation request, a vehicle driving state request or an ETC transaction request broadcast by the roadside device, and the like.
And S15, determining the pressure difference between the air pressure of the position where the vehicle-mounted equipment is located and the air pressure of the position where other equipment is located.
The vehicle-mounted equipment analyzes the broadcast message to obtain the air pressure of the position of other equipment. The pressure difference between the two is calculated in conjunction with the air pressure at the position where the in-vehicle apparatus is located obtained in step S11.
And S16, judging whether the pressure difference is in a preset range.
Generally, the air pressures at the same or similar altitude are equal or similar, and there is a certain height difference between the upper and lower road surfaces, so that when the pressure difference is within a certain preset range, the vehicle-mounted device and the other device can be considered to be on the same road surface. The preset range can be determined after comprehensive consideration of factors such as the geographic environment of a specific position, the height difference of upper and lower layers of pavements and the like, and can also be obtained after field test.
And S17, determining that the vehicle-mounted equipment and other equipment are on the same layer of road surface.
When the pressure difference is within a certain preset range, the vehicle-mounted device and the other device can be determined to be on the same layer of road surface.
The vehicle-mounted equipment of the embodiment acquires the air pressure of the position where the vehicle-mounted equipment is located, and calculates the pressure difference between the air pressure of the position where the vehicle-mounted equipment is located and the air pressure of the position where other equipment is located, so that whether the vehicle-mounted equipment and other equipment are located on the same layer of road surface or not is judged according to the pressure difference. For an application scene of a multilayer pavement, the vehicle-mounted equipment determines other equipment on the same pavement according to the air pressure, so that accurate communication can be realized; compared with the route calculation and the positioning correction in the prior art, a large amount of calculation is reduced; meanwhile, the influence of false response to the message on traffic safety and user experience caused by communication crosstalk can be avoided, and the communication reliability and pertinence can be improved.
As a possible implementation, when the in-vehicle device determines that it is on the same road surface as the other device, it responds to the broadcast message.
The type and purpose of the broadcast message are various, other devices can broadcast messages with any content according to requirements, and the vehicle-mounted device responds to the broadcast message according to the content of the broadcast message, including but not limited to the following examples:
the vehicle-mounted equipment marks the lane where the vehicle-mounted equipment is located according to the positioning and navigation map, but the positioning has the possibility of drifting and errors, the vehicle-mounted equipment receives the broadcast message of the road side equipment on the same layer of road surface, and the vehicle-mounted equipment can correct the lane mark according to the lane mark in the broadcast message from the road side equipment.
Or feeding back the vehicle-mounted information of the vehicle-mounted equipment according to the information acquisition instruction in the broadcast message from the road side equipment. For example, the ETC roadside device requests the ETC onboard device to feed back the high-speed entrance station, the approach station, and the like related to the ETC transaction through a broadcast message so as to further perform the ETC transaction, and the ETC onboard device feeds back the corresponding information content in response to the message request.
Or determining a driving strategy according to the traffic road condition information in the broadcast message from the road side equipment or the abnormal driving information in the broadcast message from other vehicle-mounted equipment, wherein the driving strategy comprises deceleration and/or avoidance.
The purpose of the external broadcast message of other devices is to obtain a response, and the response of the vehicle-mounted device which is not on the same layer of road surface is invalid, so that the vehicle-mounted device wastes resources, and even the vehicle-mounted device may cause traffic jam or even accidents due to incorrect response to the message; therefore, the vehicle-mounted device only needs to respond when the received broadcast message is determined to be from other devices on the same layer of road surface, so that the basic purpose of the broadcast message can be achieved.
Further, on the basis of the above embodiment, when the step S16 determines that the pressure difference is not within a certain preset range, the method further includes the following steps:
and S18, determining that the vehicle-mounted equipment and other equipment are not on the same layer of road surface, and ignoring the broadcast messages of other equipment.
For the broadcast messages from other devices which are not on the same layer of road surface, the vehicle-mounted device ignores the broadcast messages, so that unnecessary message interaction can be saved, and the problem caused by false response can be prevented.
As a possible implementation manner, after step S11, the vehicle-mounted device can receive broadcast messages from other devices and can send messages to the outside according to its own requirements.
Specifically, after the step S11 obtains the air pressure of the location where the vehicle-mounted device is located, the method further includes: and packaging the air pressure of the position of the vehicle-mounted equipment into the message, and broadcasting.
The message may include other information, such as a vehicle running state, a vehicle abnormal running notification or a cooperation request, besides the air pressure of the position of the vehicle-mounted device, for example, when the vehicle carrying the vehicle-mounted device is abnormal, other vehicles on the same layer of road surface need to avoid; response content to broadcast messages from other devices may also be included, such as a transaction request to respond to an ETC roadside device.
It will be appreciated that other on-board devices or roadside devices may receive the broadcast message. Similarly, the other devices are used as the party for receiving the broadcast message, and can compare the air pressure of the position of the vehicle-mounted device in the message with the air pressure of the position of the other devices, judge whether the vehicle-mounted device is on the same layer of road surface according to the pressure difference between the two devices, respond to the broadcast message of the vehicle-mounted device if the vehicle-mounted device is on the same layer of road surface, and do not perform any processing if the vehicle-mounted device is not on the same layer of road surface.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
In order to implement the device communication method for a multilayer road surface in the foregoing embodiment, this embodiment further provides a device communication apparatus for a multilayer road surface, including a portion disposed on a vehicle-mounted device and a portion disposed on a roadside device.
Fig. 2 is a schematic structural diagram of the device communication apparatus for a multi-layer pavement according to this embodiment. As shown in fig. 2, the device communication apparatus 21 provided on a multi-layer road surface of the in-vehicle device includes:
the first air pressure detection module 211 is configured to detect air pressure at a location where the vehicle-mounted device is located;
a receiving module 212, configured to receive a broadcast message from another device, where the broadcast message includes air pressure of a location where the other device is located;
the determining module 213 is configured to determine a pressure difference between the air pressure at the location of the vehicle-mounted device and the air pressure at the location of the other device, and determine that the vehicle-mounted device and the other device are on the same road surface when the pressure difference is within a preset range.
Further, the device communication device of the multilayer pavement further comprises:
the execution module 214 is used for correcting the lane mark of the vehicle-mounted device according to the lane mark in the broadcast message from the road side device when the vehicle-mounted device is determined to be on the same layer of road surface as other devices; or feeding back the vehicle-mounted information of the vehicle-mounted equipment according to an information acquisition instruction in the broadcast message from the road side equipment; or determining a driving strategy according to the traffic road condition information in the broadcast message from the road side equipment or the abnormal driving information in the broadcast message from other vehicle-mounted equipment, wherein the driving strategy comprises deceleration and/or avoidance.
And the first sending module 215 is used for encapsulating the air pressure of the position where the vehicle-mounted equipment is located into the message and broadcasting the message.
The device communication apparatus 21, as a receiver of the broadcast message, may obtain the air pressure at the location where the device is located, and calculate the pressure difference with the air pressure at the location where the other device is located, so as to determine whether the device and the other device are on the same layer of road surface according to the pressure difference. For an application scene of a multilayer pavement, the device communication device 21 can realize accurate communication with other devices on the same layer of pavement; compared with the route calculation and the positioning correction in the prior art, a large amount of calculation is reduced; meanwhile, the influence of false response to the message on traffic safety and user experience caused by communication crosstalk can be avoided, and the communication reliability and pertinence can be improved.
Meanwhile, the device communication apparatus 21 may also be used as a sender of the broadcast message, and broadcasts the own requirement and the air pressure at the location through the message, so as to obtain the response of other devices on the same layer of road surface.
Accordingly, as shown in fig. 2, the device communication apparatus 31 provided on the multi-layer road surface of the roadside device includes:
the second air pressure detection module 311 is configured to obtain air pressure at a position where the roadside device is located;
the second sending module 312 is configured to encapsulate the air pressure at the location of the roadside device into a message, and broadcast the message, so that the vehicle-mounted device can calculate a pressure difference according to the air pressure at the location of the vehicle-mounted device and the air pressure at the location of the roadside device, and determine that the vehicle-mounted device and the roadside device are on the same layer of road surface when the pressure difference is within a preset range.
The antenna of the conventional roadside apparatus generally radiates signals outwards in a spherical shape without space constraints in order to obtain a wider communication range. For an application scenario of a multilayer road surface, the multilayer road surface has a spatial relationship between an upper layer and a lower layer, and if the antenna configuration of the conventional road side device is adopted, an antenna signal of the road side device on the upper layer of the road surface may cover the lower layer of the road surface, thereby forming signal crosstalk.
Therefore, as a preferred implementation manner, the second sending module 312 on the roadside device is provided with a waveform constrained antenna, the waveform constrained antenna has a space constraint capability when radiating a signal, and the signal is constrained in a space from the road surface of the current layer to the road surface of the previous layer and is shaped like a flat sphere; and packaging the air pressure of the position of the road side equipment into a message, and broadcasting the message in which the air pressure of the position of the road side equipment is packaged through a waveform constraint antenna according to a preset time interval.
In this embodiment, the device communication apparatus 31 having the waveform constrained antenna carries the air pressure at the location thereof when broadcasting the message, so that the message receiver can determine whether the message receiver is on the same layer of road surface as the device communication apparatus, and further determine whether to respond to the message; meanwhile, the broadcast signal of the message is restricted in the height of the road surface, so that the message receivers on other layers of the road surface cannot be interfered, and unnecessary message analysis and air pressure comparison judgment operation of a plurality of message receivers can be reduced.
It should be noted that, for the information interaction, execution process, and other contents between the above-mentioned devices/units, the specific functions and technical effects thereof are based on the same concept as those of the embodiment of the method of the present application, and specific reference may be made to the part of the embodiment of the method, which is not described herein again.
Fig. 3 is a schematic structural diagram of an on-board device according to an embodiment of the present application. As shown in fig. 3, the in-vehicle apparatus of the embodiment includes:
the air pressure sensor 43 is used for acquiring the air pressure of the position where the vehicle-mounted equipment is located;
at least one processor 40 (only one shown in fig. 3), a memory 41 and a computer program 42 stored in the memory 41 and executable on the at least one processor 40, the steps of the above-described method embodiments being implemented when the computer program 42 is executed by the processor 40.
The vehicle-mounted equipment can be an ETC vehicle-mounted unit, a V2X vehicle-mounted unit, a driving recorder, a vehicle central control unit, a smart phone and the like. Those skilled in the art will appreciate that fig. 3 is merely an example of a vehicle-mounted device, and does not constitute a limitation of the vehicle-mounted device, and may include more or less components than those shown, or combine some components, or different components, such as an input-output device, a network access device, and the like.
Fig. 4 is a schematic structural diagram of roadside equipment according to an embodiment of the present application. As shown in fig. 4, the roadside apparatus of the embodiment includes:
the air pressure sensor 53 is used for acquiring the air pressure of the position where the roadside equipment is located;
at least one processor 50 (only one shown in fig. 4), a memory 51 and a computer program 52 stored in the memory 51 and executable on the at least one processor 50, the steps of the above-described method embodiments being implemented when the computer program 52 is executed by the processor 50.
The roadside device may be an ETC roadside unit, a V2X roadside unit, a roadside sensing system, or the like. The roadside sensing system is a roadside infrastructure provided with at least one sensing device, and is a component in the intelligent traffic system, and the sensing device comprises an air pressure sensor 53. Those skilled in the art will appreciate that fig. 4 is merely an example of a roadside device and is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or different components may be included, such as input output devices, network access devices, etc.
The processors 40, 50 may be Central Processing Units (CPUs), and the processors 40, 50 may be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 41 may be an internal storage unit of the vehicle-mounted device, such as a hard disk or a memory, or an external storage device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 41 may also include both an internal storage unit and an external storage device.
The memory 51 may be an internal storage unit of the roadside device, such as a hard disk or a memory, or an external storage device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 51 may also include both an internal storage unit and an external storage device.
The memory 41, 51 is used for storing an operating system, an application program, a BootLoader (BootLoader), data, and other programs, such as program codes of a computer program. The memory 41, 51 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps in the above-mentioned method embodiments.
The embodiments of the present application provide a computer program product, which when running on a mobile terminal, enables the mobile terminal to implement the steps in the above method embodiments when executed.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include at least: any entity or device capable of carrying computer program code to a photographing apparatus/terminal apparatus, a recording medium, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Such as a usb-disk, a removable hard disk, a magnetic or optical disk, etc. In certain jurisdictions, computer-readable media may not be an electrical carrier signal or a telecommunications signal in accordance with legislative and patent practice.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/device and method may be implemented in other ways. For example, the above-described apparatus/device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be 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.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. The device communication method of the multilayer pavement is characterized by being applied to vehicle-mounted devices and comprising the following steps:
acquiring the air pressure of the position of the vehicle-mounted equipment;
receiving broadcast messages from other equipment, wherein the broadcast messages comprise the air pressure of the position of the other equipment;
determining the pressure difference between the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of the other equipment;
and if the pressure difference is within a preset range, determining that the vehicle-mounted equipment and the other equipment are on the same layer of road surface.
2. The device communication method for a multi-layer pavement according to claim 1, wherein the other devices include roadside devices and other vehicle-mounted devices; after it is determined that the vehicle-mounted device and the other device are on the same road surface, the method further includes:
correcting the lane mark of the vehicle-mounted equipment according to the lane mark in the broadcast message from the roadside equipment;
or feeding back the vehicle-mounted information of the vehicle-mounted equipment according to an information acquisition instruction in the broadcast message from the road side equipment;
or determining a driving strategy according to traffic road condition information in the broadcast message from the road side equipment or abnormal driving information in the broadcast message from the other vehicle-mounted equipment, wherein the driving strategy comprises deceleration and/or avoidance.
3. The device communication method for a multi-layer pavement according to claim 1, further comprising, after acquiring the air pressure at the location of the vehicle-mounted device:
and packaging the air pressure of the position of the vehicle-mounted equipment into a message, and broadcasting.
4. The method for device communication of a multi-layer pavement according to claim 1, further comprising:
and when the pressure difference is not within the preset range, determining that the vehicle-mounted equipment and the other equipment are not on the same layer of road surface, and ignoring the broadcast messages of the other equipment.
5. The utility model provides a device communication device on multilayer road surface which characterized in that sets up in the mobile unit, includes:
the first air pressure detection module is used for detecting the air pressure of the position where the vehicle-mounted equipment is located;
the receiving module is used for receiving broadcast messages from other equipment, wherein the broadcast messages comprise the air pressure of the positions of the other equipment;
and the judging module is used for determining the pressure difference between the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of the other equipment, and judging that the vehicle-mounted equipment and the other equipment are on the same layer of road surface when the pressure difference is within a preset range.
6. The device communication apparatus for a multi-layer pavement according to claim 5, wherein the other devices include roadside devices and other vehicle-mounted devices; the device communication means further comprises:
the execution module is used for correcting the lane mark of the vehicle-mounted equipment according to the lane mark in the broadcast message from the roadside equipment when the vehicle-mounted equipment and the other equipment are determined to be on the same layer of road surface; or feeding back the vehicle-mounted information of the vehicle-mounted equipment according to an information acquisition instruction in the broadcast message from the road side equipment; or determining a driving strategy according to traffic road condition information in the broadcast message from the road side equipment or abnormal driving information in the broadcast message from the other vehicle-mounted equipment, wherein the driving strategy comprises deceleration and/or avoidance.
7. The equipment communication method of the multilayer pavement is characterized by being applied to roadside equipment and comprising the following steps:
acquiring the air pressure of the position of the roadside equipment;
and packaging the air pressure of the position of the road side equipment into a message, broadcasting the message so that the vehicle-mounted equipment can calculate the pressure difference according to the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of the road side equipment, and determining that the vehicle-mounted equipment and the road side equipment are on the same layer of road surface when the pressure difference is within a preset range.
8. The device communication method for a multi-layer pavement according to claim 7, wherein a wave-shaped constraint antenna is provided on the roadside device; packaging the air pressure of the position of the road side equipment into a message, and broadcasting, wherein the method comprises the following steps: and broadcasting and packaging the information of the air pressure of the position of the road side equipment through the waveform constraint antenna according to a preset time interval.
9. The utility model provides a device communication device on multilayer road surface which characterized in that sets up in roadside equipment, includes:
the second air pressure detection module is used for acquiring the air pressure of the position of the roadside equipment;
and the second sending module is used for packaging the air pressure of the position of the road side equipment into a message and broadcasting the message so that the vehicle-mounted equipment can calculate the pressure difference according to the air pressure of the position of the vehicle-mounted equipment and the air pressure of the position of the road side equipment and determine that the vehicle-mounted equipment and the road side equipment are on the same layer of road surface when the pressure difference is within a preset range.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 4, or carries out the method of claim 7 or 8.
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