CN107370509A - A kind of indicating means of signal intensity, detection device and vehicle arrangement - Google Patents
A kind of indicating means of signal intensity, detection device and vehicle arrangement Download PDFInfo
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- CN107370509A CN107370509A CN201710627712.XA CN201710627712A CN107370509A CN 107370509 A CN107370509 A CN 107370509A CN 201710627712 A CN201710627712 A CN 201710627712A CN 107370509 A CN107370509 A CN 107370509A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- Devices For Checking Fares Or Tickets At Control Points (AREA)
Abstract
The embodiment of the invention discloses a kind of indicating means of signal intensity, detection device and vehicle arrangement, wherein, this method includes：Detect the first signal intensity of the signal that board units are sent；By first signal intensity compared with the reference signal intensity prestored；When first signal intensity is less than the reference signal intensity, signal enhancing instruction is sent to the board units, the signal enhancing is indicated for indicating that the board units increase sends the signal intensity of signal.Using the embodiment of the present invention, the intensity for sending signal can be changed according to the instruction of roadside unit, so as to lift the reliability of the communication between roadside unit and board units.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a signal strength indicating method, a signal strength detecting device and a vehicle device.
Background
At present, Electronic Toll Collection (ETC) systems are greatly developed, and can well relieve congestion by completing fee deduction processing through non-stop. In the ETC system, a roadside Unit (RSU) communicates with an On Board Unit (OBU) installed in a vehicle On a road, and the vehicle that has completed a transaction and has completed a toll passes through a toll station by raising a lever.
However, the transmission signal strength of the vehicles is different due to different configurations of different vehicles and different communication environments of each communication, and if the transmission signal strength is too low, unreliable communication may be caused, such as a delayed transaction or even a failed transaction.
Disclosure of Invention
The embodiment of the invention provides a signal strength indicating method, a detecting device and a vehicle device, which can change the strength of a transmitted signal according to the indication of a road side unit, thereby improving the reliability of communication between the road side unit and an on-board unit.
In a first aspect, an embodiment of the present invention provides a method for indicating signal strength, where the method includes:
detecting a first signal strength of a signal transmitted by an on-board unit;
comparing the first signal strength with a pre-stored reference signal strength;
when the first signal strength is smaller than the reference signal strength, sending a signal enhancement instruction to the vehicle-mounted unit, wherein the signal enhancement instruction is used for instructing the vehicle-mounted unit to increase the signal strength of the sent signal.
Optionally, the signal enhancement indication carries a signal enhancement value, where the signal enhancement value is a fixed preset value, or the signal enhancement value is a difference between the reference signal strength and the first signal strength.
Optionally, the method further includes:
when the first signal strength is larger than the reference signal strength, sending a signal weakening instruction to the vehicle-mounted unit, wherein the signal weakening instruction is used for instructing the vehicle-mounted unit to reduce the signal strength of the sent signal.
In a second aspect, an embodiment of the present invention further provides a method for indicating signal strength, where the method includes: receiving a signal enhancement indication sent by a road side unit;
and increasing the signal strength of the transmitted signal according to the signal enhancement indication.
Optionally, the signal enhancement indication carries a signal enhancement value, where the signal enhancement value is a fixed preset value, or the signal enhancement value is a difference between the reference signal strength and the first signal strength;
the increasing the signal strength of the transmitted signal according to the signal enhancement indication comprises:
analyzing to obtain the signal enhancement value carried by the signal enhancement indication;
and increasing the signal strength of the transmission signal according to the signal enhancement value, and transmitting the signal by adopting the signal strength after the signal strength is increased.
Optionally, the method further includes:
when a signal attenuation instruction sent by the road side unit is received, reducing the signal strength of a sent signal according to a signal attenuation value, and sending the signal by adopting the signal strength after the signal strength is reduced;
the signal attenuation value is a fixed preset value, or the signal attenuation value is a difference value between the first signal strength and the reference signal strength.
In a third aspect, an embodiment of the present invention further provides a detection device, where the detection device includes a detection unit and a sending unit. The detection device executes the method for indicating the signal strength of the first aspect by the unit.
In a fourth aspect, embodiments of the present invention also provide a vehicle apparatus that includes a receiving unit and a control unit. The vehicle device executes the method for indicating the signal strength of the second aspect by the above-described unit.
In a fifth aspect, an embodiment of the present invention provides another detection device, including a processor, a transceiver, and a memory, where the processor, the transceiver, and the memory are connected to each other, where the memory is used to store application program codes that support the detection device to execute the above method, and the processor is configured to execute the above method of the first aspect.
In a sixth aspect, embodiments of the present invention provide another vehicle device, which includes a processor, a transceiver, and a memory, the processor, the transceiver, and the memory being interconnected. The vehicle device may optionally further include a user interface. Wherein the memory is configured to store application program code that supports the vehicle device to perform the above method, and the processor is configured to perform the above method of the second aspect.
In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, the computer program including program instructions, which, when executed by a processor, cause the processor to execute the method of the first aspect.
In an eighth aspect, the present invention provides a computer-readable storage medium, wherein the computer storage medium stores a computer program, and the computer program includes program instructions, which, when executed by a processor, cause the processor to execute the method of the second aspect.
In a ninth aspect, embodiments of the present invention provide a system for indicating signal strength, which includes the detection device and/or the vehicle device of the above aspect. In a possible design, the system may further include other devices that interact with the detection device or the vehicle device in the solution provided by the embodiment of the present invention.
In a tenth aspect, embodiments of the present invention also provide a computer program product containing instructions, which when run on a computer, cause the computer to perform the method of the above aspects.
According to the embodiment of the invention, the first signal strength of the signal sent by the vehicle-mounted unit is detected, and the signal enhancement instruction is sent to the vehicle-mounted unit when the first signal strength is smaller than the preset reference signal strength, so that the vehicle-mounted unit can increase the signal strength of the sent signal according to the signal enhancement instruction, namely, the strength of the sent signal can be changed according to the instruction of the road side unit, and the reliability of communication between the road side unit and the vehicle-mounted unit is improved.
Drawings
In order to more clearly illustrate the technical solutions of 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 creative efforts.
Fig. 1 is a schematic flowchart of a method for indicating signal strength according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for indicating signal strength according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a vehicle apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a system for indicating signal strength according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a detecting apparatus according to another embodiment of the present invention;
fig. 7 is a schematic structural diagram of a vehicle device according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 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 is also to be understood that 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 in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further 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 a determination" or "in response to a detection". 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 ]".
The embodiment of the invention discloses a signal strength indicating method, a detecting device, vehicle equipment and a system, which can change the strength of a transmitted signal according to the indication of a road side unit, thereby improving the reliability of communication between the road side unit and a vehicle-mounted unit. The details are described below.
Fig. 1 is a flowchart illustrating a method for indicating signal strength according to an embodiment of the present invention. Specifically, as shown in fig. 1, the method for indicating signal strength according to the embodiment of the present invention may include the following steps:
101. a first signal strength of a signal transmitted by an on-board unit is detected.
Optionally, the method of the embodiment of the present invention may be specifically applied to a detection device, and the detection device may be deployed on a toll collection system (for example, a gantry of a toll station, which is also called a carrier). For example, the detection device may be a road side unit RSU, or may also be other detection devices that are independently arranged, and the like, and the embodiment of the present invention is not limited. The following description will be given taking the detection device as an RSU as an example.
102. The first signal strength is compared with a pre-stored reference signal strength.
The reference signal strength can be preset and is greater than the minimum signal strength which can ensure that the RSU and the OBU communicate.
103. When the first signal strength is smaller than the reference signal strength, sending a signal enhancement instruction to the vehicle-mounted unit, wherein the signal enhancement instruction is used for instructing the vehicle-mounted unit to increase the signal strength of the sent signal.
Specifically, when the first signal strength is smaller than the reference signal strength, it may be indicated that the strength of the OBU sending signal is weak, and the OBU cannot support the current communication, a signal enhancement indication may be sent to the OBU, so as to improve the communication reliability.
Optionally, the signal enhancement indicator may carry a signal enhancement value, where the signal enhancement value may be a fixed preset value, or the signal enhancement value may be a difference between the reference signal strength and the first signal strength, and so on, and the embodiment of the present invention is not limited.
Further optionally, when the first signal strength is greater than the reference signal strength, the detection device may further send a signal reduction instruction to the on-board unit, where the signal reduction instruction may be used to instruct the on-board unit to reduce the signal strength of the sent signal. To reduce power consumption or overhead of the vehicle device in transmitting signals.
Fig. 2 is a flowchart illustrating a method for indicating signal strength according to another embodiment of the present invention. Specifically, as shown in fig. 2, the method for indicating signal strength according to the embodiment of the present invention may include the following steps:
201. and receiving a signal enhancement indication sent by the road side unit.
Optionally, the method according to the embodiment of the present invention may be specifically applied to a vehicle device, for example, may be specifically applied to an on-board unit OBU (vehicle with an OBU installed), or other independent configuration unit (vehicle with an OBU installed or vehicle without an OBU installed), and the embodiment of the present invention is not limited. The following description will be given taking the application to an OBU as an example.
202. The signal strength of the transmitted signal is increased based on the signal enhancement indication.
Specifically, after receiving a signal enhancement indication sent by a detection device, such as an RSU, the OBU may determine the strength of the enhanced transmission signal, for example, enhance the signal strength according to a preset enhancement value.
Alternatively, optionally, the signal enhancement indicator may also carry a signal enhancement value, where the signal enhancement value is a fixed preset value, or the signal enhancement value may be a difference value between a pre-stored reference signal strength and the first signal strength. Further, the increasing the signal strength of the transmission signal according to the signal enhancement indication may specifically be: analyzing to obtain the signal enhancement value carried by the signal enhancement indication; the signal strength of the transmission signal is increased according to the signal enhancement value, and the signal strength after the signal strength is increased is used for transmitting the signal.
Optionally, when receiving the signal weakening indication sent by the roadside unit, the OBU may further weaken the strength of the sent signal, for example, may reduce the signal strength of the sent signal according to a preset signal weakening value, and send the signal with the signal strength after reducing the signal strength. The signal attenuation value is a fixed preset value, or the signal attenuation value is a difference value between the first signal strength and the reference signal strength. The signal reduction value may also be carried in the signal reduction indication.
In the embodiment of the invention, the detection device such as the road side unit can detect the first signal strength of the signal sent by the vehicle device such as the vehicle-mounted unit and send the signal enhancement instruction to the vehicle device when the first signal strength is smaller than the preset reference signal strength, so that the vehicle device can increase the signal strength of the sent signal according to the signal enhancement instruction, namely, the strength of the sent signal can be changed according to the instruction of the detection device, and the reliability of communication between the detection device and the vehicle device is improved.
The above method embodiments are all illustrations of methods for indicating signal strength in the present application, and descriptions of various embodiments have respective emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.
Fig. 3 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention. Specifically, as shown in fig. 3, the detection apparatus 300 according to an embodiment of the present invention may include a detection unit 301 and a transmission unit 302. Where these units may perform the respective functions of the detection device in the above-described method example, e.g.,
a detection unit 301 for detecting a first signal strength of a signal transmitted by the on-board unit;
the detecting unit 301 is further configured to compare the first signal strength with a pre-stored reference signal strength;
a sending unit 302, configured to send a signal enhancement instruction to the on-board unit when the detecting unit 301 detects that the first signal strength is smaller than the reference signal strength, where the signal enhancement instruction is used to instruct the on-board unit to increase the signal strength of a sent signal.
Optionally, the signal enhancement indication carries a signal enhancement value, where the signal enhancement value is a fixed preset value, or the signal enhancement value is a difference between the reference signal strength and the first signal strength.
Further, in an alternative embodiment,
a sending unit 302, configured to send a signal reduction instruction to the on-board unit when the detecting unit 301 detects that the first signal strength is greater than the reference signal strength, where the signal reduction instruction is used to instruct the on-board unit to reduce the signal strength of the sent signal.
Optionally, the detection device may implement, through the above-mentioned units, part or all of the steps performed by the detection device in the signal strength indication method in the embodiment shown in fig. 1 to fig. 2. It should be understood that the embodiments of the present invention are device embodiments corresponding to method embodiments, and the description of the method embodiments also applies to the embodiments of the present invention.
Fig. 4 is a schematic structural diagram of a vehicle device according to an embodiment of the present invention. Specifically, as shown in fig. 4, the vehicle device 400 according to the embodiment of the present invention may include a receiving unit 401 and a control unit 402. Where these units may perform the respective functions of the vehicle device in the above-described method example, for example,
a receiving unit 401, configured to receive a signal enhancement indication sent by a road side unit;
a control unit 402, configured to increase the signal strength of the transmission signal according to the signal enhancement indication.
Optionally, the signal enhancement indication carries a signal enhancement value, where the signal enhancement value is a fixed preset value, or the signal enhancement value is a difference between a pre-stored reference signal strength and the first signal strength. Further, the control unit 402 may be specifically configured to:
analyzing to obtain the signal enhancement value carried by the signal enhancement indication;
and increasing the signal strength of the transmission signal according to the signal enhancement value, and transmitting the signal by adopting the signal strength after the signal strength is increased.
Optionally, the control unit 402 may be further configured to, when receiving the signal reduction instruction sent by the roadside unit, reduce the signal strength of the sent signal according to the signal reduction value, and send the signal with the signal strength after the signal strength is reduced. The signal attenuation value is a fixed preset value, or the signal attenuation value is a difference value between the first signal strength and the reference signal strength.
Specifically, the vehicle device may implement, through the above units, part or all of the steps performed by the vehicle device in the method for indicating signal strength in the embodiment shown in fig. 1 to 2. It should be understood that the embodiments of the present invention are device embodiments corresponding to method embodiments, and the description of the method embodiments also applies to the embodiments of the present invention.
Fig. 5 is a schematic structural diagram of a system for indicating signal strength according to an embodiment of the present invention. Specifically, as shown in fig. 5, the system for indicating signal strength according to the embodiment of the present invention may include a detection device 501 and a vehicle device 502. Wherein,
a detection device 501 for detecting a first signal strength of a signal transmitted by the vehicular device 502; comparing the first signal strength with a pre-stored reference signal strength; transmitting a signal enhancement indication to the vehicular device 502 when the first signal strength is less than the reference signal strength;
and the vehicle device 502 is used for receiving the signal enhancement instruction sent by the detection device 501 and increasing the signal strength of the sent signal according to the signal enhancement instruction.
Specifically, the detection device 501 may refer to the description related to the detection device in the embodiment corresponding to fig. 1 to fig. 2, and the vehicle device 502 may refer to the description related to the vehicle device in the embodiment corresponding to fig. 1 to fig. 2, which is not repeated herein.
In the embodiment of the invention, the detection device such as the road side unit can detect the first signal strength of the signal sent by the vehicle device such as the vehicle-mounted unit and send the signal enhancement instruction to the vehicle device when the first signal strength is smaller than the preset reference signal strength, so that the vehicle device can increase the signal strength of the sent signal according to the signal enhancement instruction, namely, the strength of the sent signal can be changed according to the instruction of the detection device, and the reliability of communication between the detection device and the vehicle device is improved.
Fig. 6 is a schematic structural diagram of a detection apparatus according to another embodiment of the present invention. Specifically, as shown in fig. 6, the detection apparatus 600 according to the embodiment of the present invention may include: one or more processors 601; and optionally one or more transceivers 602 and memory 603, etc. The processor 601, the transceiver 602, and the memory 603 may be connected via a bus 604, or may be connected in other ways. The memory 603 may be used to store instructions and the processor 601 may be used to execute instructions stored by the memory 603.
It should be understood that, in the embodiment of the present invention, the Processor 601 may be a Central Processing Unit (CPU), and the Processor may also 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, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The transceiver 602 may be used to receive and/or transmit information.
The memory 603 may include both read-only memory and random access memory and provides instructions and data to the processor 601. A portion of the memory 603 may also include non-volatile random access memory.
Wherein, the processor 601 may be specifically configured to: detecting a first signal strength of a signal transmitted by an on-board unit; comparing the first signal strength with a pre-stored reference signal strength; when the first signal strength is smaller than the reference signal strength, a signal enhancement instruction is sent to the vehicle-mounted unit through the transceiver 602, and the signal enhancement instruction is used for instructing the vehicle-mounted unit to increase the signal strength of the sent signal.
Optionally, the signal enhancement indication carries a signal enhancement value, where the signal enhancement value is a fixed preset value, or the signal enhancement value is a difference between the reference signal strength and the first signal strength.
Optionally, the processor 601 is further configured to send a signal reduction instruction to the on-board unit through the transceiver 602 when the first signal strength is greater than the reference signal strength, where the signal reduction instruction is used to instruct the on-board unit to reduce the signal strength of the sent signal.
In a specific implementation, the processor 601, the transceiver 602, and the memory 603 described in the embodiment of the present invention may execute the implementation described in the method for indicating signal strength in the embodiment shown in fig. 1, and may also execute the implementation of the detection device described in the embodiment of the present invention, which is not described herein again.
In a further embodiment of the invention, a computer-readable storage medium is provided, which stores a computer program which, when being executed by a processor, implements the method of indicating signal strength of the embodiment shown in fig. 1.
The computer readable storage medium may be an internal storage unit of the detection device according to any of the foregoing embodiments, for example, a hard disk or a memory of the detection device. The computer readable storage medium may also be an external storage device of the detection 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, provided on the detection device. Further, the computer-readable storage medium may also include both an internal storage unit and an external storage device of the detection device. The computer-readable storage medium is used for storing the computer program and other programs and data required by the detection device. The computer readable storage medium may also be used to temporarily store data that has been output or is to be output.
Fig. 7 is a schematic structural diagram of a vehicle device according to an embodiment of the present invention. Specifically, as shown in fig. 7, the vehicle device 700 according to the embodiment of the present invention may include: one or more processors 701; and optionally one or more transceivers 702, one or more user interfaces 703 and memory 704, among others. The processor 701, the transceiver 702, the user interface 703 and the memory 704 may be connected by a bus 705, which is an example of an embodiment of the present invention, or may be connected in other ways. The memory 704 may be used to store instructions and the processor 701 may be used to execute instructions stored by the memory 704.
It should be understood that, in the embodiment of the present invention, the Processor 701 may be a Central Processing Unit (CPU), and the Processor may also 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, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The transceiver 702 may be used to receive and/or transmit information.
The user interface 703 may include a touch pad, a microphone, etc., and may also include a display (LCD, etc.), a speaker, etc.
The memory 704 may include both read-only memory and random-access memory, and provides instructions and data to the processor 701. A portion of the memory 704 may also include non-volatile random access memory.
Among others, the processor 701 may be specifically configured to: receiving, by the transceiver 702, a signal enhancement indication sent by a roadside unit; and increasing the signal strength of the transmitted signal according to the signal enhancement indication.
Optionally, the signal enhancement indication carries a signal enhancement value, where the signal enhancement value is a fixed preset value, or the signal enhancement value is a difference between a pre-stored reference signal strength and the first signal strength;
the processor 701 may be specifically configured to obtain the signal enhancement value carried by the signal enhancement indicator through analysis, increase the signal strength of the transmission signal according to the signal enhancement value, and transmit the signal with the signal strength after the signal strength is increased.
The processor 701 may be further configured to, when receiving a signal reduction instruction sent by the roadside unit, reduce the signal strength of the transmission signal according to the signal reduction value, and send the signal with the signal strength after the signal strength is reduced. The signal attenuation value is a fixed preset value, or the signal attenuation value is a difference value between the first signal strength and the reference signal strength.
In a specific implementation, the processor 701, the transceiver 702, the user interface 703, and the memory 704 described in the embodiment of the present invention may execute the implementation described in the method for indicating signal strength in the embodiment shown in fig. 2, or may execute the implementation of the vehicle device described in the embodiment of the present invention, which is not described herein again.
In a further embodiment of the invention, a computer-readable storage medium is provided, which stores a computer program which, when being executed by a processor, implements the method of indicating signal strength of the embodiment illustrated in fig. 2.
The computer readable storage medium may be an internal storage unit of the vehicle device described in any of the foregoing embodiments, such as a hard disk or a memory of the vehicle device. The computer readable storage medium may also be an external storage device of the vehicle device, such as a plug-in hard disk provided on the vehicle device, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the computer-readable storage medium may also include both an internal storage unit and an external storage device of the vehicle device. The computer-readable storage medium is used for storing the computer program and other programs and data required by the vehicle device. The computer readable storage medium may also be used to temporarily store data that has been output or is to be output.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. 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 invention.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the detection device and the vehicle device described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, detection device and vehicle device and method may be implemented in other ways. For example, the division of the unit in the embodiment of the present invention is illustrative, and is only a logical function division, and there may be another division manner in actual implementation. Each functional unit 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, or some features may be omitted, or may not be executed. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. 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 also be an electric, mechanical or other form of connection.
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 of the present invention.
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, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for indicating signal strength, comprising:
detecting a first signal strength of a signal transmitted by an on-board unit;
comparing the first signal strength with a pre-stored reference signal strength;
when the first signal strength is smaller than the reference signal strength, sending a signal enhancement instruction to the vehicle-mounted unit, wherein the signal enhancement instruction is used for instructing the vehicle-mounted unit to increase the signal strength of the sent signal.
2. The method of claim 1, wherein the signal enhancement indication carries a signal enhancement value, and wherein the signal enhancement value is a fixed preset value, or wherein the signal enhancement value is a difference between the reference signal strength and the first signal strength.
3. The method of claim 1, further comprising:
when the first signal strength is larger than the reference signal strength, sending a signal weakening instruction to the vehicle-mounted unit, wherein the signal weakening instruction is used for instructing the vehicle-mounted unit to reduce the signal strength of the sent signal.
4. A method for indicating signal strength, comprising:
receiving a signal enhancement indication sent by a road side unit;
and increasing the signal strength of the transmitted signal according to the signal enhancement indication.
5. The method of claim 4, wherein the signal enhancement indication carries a signal enhancement value, and the signal enhancement value is a fixed preset value, or the signal enhancement value is a difference value between a pre-stored reference signal strength and the first signal strength;
the increasing the signal strength of the transmitted signal according to the signal enhancement indication comprises:
analyzing to obtain the signal enhancement value carried by the signal enhancement indication;
and increasing the signal strength of the transmission signal according to the signal enhancement value, and transmitting the signal by adopting the signal strength after the signal strength is increased.
6. The method of claim 4, further comprising:
when a signal attenuation instruction sent by the road side unit is received, reducing the signal strength of a sent signal according to a signal attenuation value, and sending the signal by adopting the signal strength after the signal strength is reduced;
the signal attenuation value is a fixed preset value, or the signal attenuation value is a difference value between the first signal strength and the reference signal strength.
7. A detection apparatus, comprising: the device comprises a transceiver, a processor and a memory, wherein the processor is respectively connected with the transceiver and the memory; wherein,
the memory has stored therein program instructions;
the processor is used for executing the program instructions stored in the memory to execute:
detecting a first signal strength of a signal transmitted by an on-board unit;
comparing the first signal strength with a pre-stored reference signal strength;
when the first signal strength is smaller than the reference signal strength, a signal enhancement instruction is sent to the vehicle-mounted unit through the transceiver, and the signal enhancement instruction is used for instructing the vehicle-mounted unit to increase the signal strength of the sent signal.
8. The apparatus according to claim 7, wherein the signal enhancement indicator carries a signal enhancement value, and the signal enhancement value is a fixed preset value, or the signal enhancement value is a difference value between the reference signal strength and the first signal strength.
9. A vehicular apparatus characterized by comprising: a transceiver, a processor, and a memory; the processor is respectively connected with the transceiver and the memory; wherein,
the memory has stored therein program instructions;
the processor is used for executing the program instructions stored in the memory to execute:
receiving, by the transceiver, a signal enhancement indication sent by a roadside unit;
and increasing the signal strength of the transmitted signal according to the signal enhancement indication.
10. The vehicle device according to claim 9, wherein the signal enhancement indicator carries a signal enhancement value, and the signal enhancement value is a fixed preset value, or a difference value between a prestored reference signal strength and the first signal strength;
the processor is specifically configured to obtain the signal enhancement value carried by the signal enhancement indicator through analysis, increase the signal strength of the transmission signal according to the signal enhancement value, and transmit the signal with the signal strength increased.
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