CN116389302A - Method, device, equipment and medium for detecting and analyzing quality of Internet of vehicles link signals - Google Patents
Method, device, equipment and medium for detecting and analyzing quality of Internet of vehicles link signals Download PDFInfo
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Abstract
The embodiment of the invention relates to the technical field of Internet of vehicles, and discloses an Internet of vehicles link signal quality detection and analysis method and device, intelligent equipment and storage medium. The method comprises the steps of obtaining signal quality detection data of a vehicle control instruction communication link; the signal quality detection data comprise signal quality detection data of communication links between the vehicle control terminal and the server and between the server and the vehicle end; obtaining a signal quality evaluation result according to the signal quality detection data; and updating the signal quality indication according to the signal quality evaluation result. The embodiment of the invention enables the user to learn the signal quality of the current vehicle control instruction communication link in time, so that the execution time of the vehicle control instruction by the user is reasonably expected, and the user experience is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of Internet of vehicles, in particular to an Internet of vehicles link signal quality detection and analysis method and device, intelligent equipment and storage medium.
Background
With the rapid development of the internet of vehicles, the remote control vehicle application is rapidly increasing. And after the vehicle control instruction is sent out from the vehicle control terminal in the remote control vehicle process, the vehicle control instruction is sent to the vehicle in a remote wireless communication mode, and an execution result is returned after the vehicle control instruction is executed. Due to the fluctuation of the Internet of vehicles link signals, the delay of the vehicle control instruction is obviously increased under the condition of poor signal quality, and the use experience of users can be influenced. Therefore, timely and accurate detection of link signal quality and timely reminding of users are technical problems to be solved.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting and analyzing the quality of a vehicle networking link signal, an intelligent terminal and a storage medium, which can prompt a user about the quality of a vehicle control instruction communication link in time so as to improve user experience.
In a first aspect, an embodiment of the present invention provides a method for detecting quality of a link signal of an internet of vehicles, which is characterized in that the method is applied to a vehicle control terminal, and the vehicle control terminal is connected with a vehicle in a communication manner through a server; the method comprises the following steps:
acquiring signal quality detection data of a vehicle control instruction communication link; the signal quality detection data comprise signal quality detection data of communication links between the vehicle control terminal and the server and between the server and the vehicle end;
obtaining a signal quality evaluation result according to the signal quality detection data;
and updating the signal quality indication according to the signal quality evaluation result.
As one embodiment, the acquiring signal quality detection data of the vehicle control command communication link includes:
if the first detection condition is met, acquiring a plurality of MQTT response times between the vehicle control terminal and the server and a plurality of MQTT response times between the server and the vehicle in the current period based on an MQTT protocol;
correspondingly, the step of obtaining the signal quality evaluation result according to the signal quality detection data comprises the following steps:
calculating to obtain the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle;
and obtaining a signal quality evaluation result according to the sum of the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle.
As one embodiment, the acquiring signal quality detection data of the vehicle control command communication link includes:
if the second detection condition is met, acquiring a plurality of MQTT response times between the vehicle control terminal and the server and a plurality of MQTT response times between the server and the vehicle in the current period based on the MQTT protocol, and acquiring a plurality of HTTP response times in the current period based on the HTTP protocol;
correspondingly, the step of obtaining the signal quality evaluation result according to the signal quality detection data comprises the following steps:
calculating to obtain the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle;
calculating to obtain the sum of the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle;
calculating to obtain average HTTP response time;
and obtaining a signal quality evaluation result according to the sum of the average MQTT response time and the average HTTP response time.
As one embodiment, the obtaining the signal quality evaluation result according to the sum of the average MQTT response time and the average HTTP response time further includes:
determining a signal quality level according to the sum of the average MQTT response times and the average HTTP response time;
if the signal quality level is a preset difference level, determining a target link according to the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle; the target link is a link between the vehicle control terminal and the server and between the server and the vehicle, wherein the signal quality of the link meets the preset difference condition;
correspondingly, the updating the signal quality indication according to the signal quality evaluation result comprises the following steps:
prompting the signal quality of the target link.
As one embodiment, the obtaining the signal quality evaluation result according to the signal quality detection data includes:
obtaining a signal quality grade according to the signal quality detection data;
and correcting the signal quality grade according to a preset correction relation.
In a second aspect, an embodiment of the present invention provides a method for correcting signal quality of a vehicle networking link, which is applied to a server, and a vehicle control terminal is connected with a vehicle through the server in a communication manner, where the method includes:
acquiring signal quality detection data of a vehicle networking link; the signal quality detection data comprise response time, communication time period and detection data packet transmission conditions of communication links between a plurality of vehicle control terminals and a server and between the server and a plurality of vehicle ends corresponding to the vehicle control terminals, and position information of the vehicle control terminals and the vehicles;
calculating to obtain a signal quality correction relation corresponding to each vehicle control terminal according to the signal quality detection data;
pushing the signal quality correction relation to a corresponding vehicle control terminal so that the vehicle control terminal can obtain a corresponding signal quality evaluation result according to the signal quality correction relation.
As an embodiment, the calculating, according to the signal quality detection data, a signal quality correction relationship corresponding to each vehicle control terminal includes:
acquiring signal quality classification information of each vehicle control terminal and corresponding vehicle based on the position and the time period by adopting an unsupervised machine learning method;
and obtaining a signal quality correction relation corresponding to the vehicle control terminal according to the signal quality classification information of each vehicle control terminal and the corresponding vehicle based on the position and the time period.
In a third aspect, an embodiment of the present invention provides a device for detecting signal quality of a vehicle networking link, where the device is configured in a vehicle control terminal, and the vehicle control terminal is connected with a vehicle through a server in a communication manner; the device comprises:
the data acquisition module is used for acquiring signal quality detection data of the vehicle control instruction communication link; the signal quality detection data comprise signal quality detection data of communication links between the vehicle control terminal and the server and between the server and the vehicle end;
the calculation module is used for obtaining a signal quality evaluation result according to the signal quality detection data;
and the updating module is used for updating the signal quality indication according to the signal quality evaluation result.
In a fourth aspect, an embodiment of the present invention provides an intelligent device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements the method for detecting signal quality of a vehicle networking link or the method for correcting signal quality of a vehicle networking link when executing the program.
In a fifth aspect, an embodiment of the present invention provides a computer readable storage medium, on which a computer program is stored, the program when executed by a processor implementing the method for detecting the quality of a signal of a link of a vehicle network according to the first aspect or the method for correcting the quality of a signal of a link of a vehicle network according to the second aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has at least the following positive effects:
according to the embodiment of the invention, the signal quality evaluation result is obtained according to the signal quality detection data by obtaining the signal quality detection data of the vehicle control instruction communication link, and then the signal quality indication is updated according to the signal quality evaluation result, so that a user can timely learn the signal quality of the current vehicle control instruction communication link, the execution time of the vehicle control instruction by the user is reasonably expected, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a method for detecting quality of a link signal of an internet of vehicles according to an embodiment of the present invention;
fig. 2 is a flow chart of a method for correcting signal quality of a vehicle networking link according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for detecting quality of a link signal of an internet of vehicles according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a device for correcting signal quality of a vehicle networking link according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an intelligent terminal according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a server according to a sixth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Example 1
Fig. 1 is a schematic flow chart provided in a first embodiment of the present invention, where the embodiment is applied to a vehicle control terminal, and the vehicle control terminal is connected with a vehicle through a server in a communication manner. The method can detect the signal quality of the vehicle network link, so that the user has reasonable expectation on the execution time of the vehicle control instruction in the environment with poor signal quality. The method can be executed by the device for detecting the quality of the Internet of vehicles link signal, which is provided by the embodiment of the invention, and the device can be realized in a software mode and is configured at the vehicle control terminal. The vehicle control terminal may be a portable intelligent terminal, for example, a smart phone, but is not limited thereto. The embodiment of the invention specifically comprises the following steps:
and 101, acquiring signal quality detection data of a vehicle control instruction communication link.
The signal quality detection data comprise signal quality detection data of communication links between the vehicle control terminal and the server and between the server and the vehicle end.
The internet of vehicles link includes communication links between the vehicle control terminal and the server and between the server and the vehicle. The internet of vehicles link may be established based on remote wireless communication technology, such as 4G, 5G, etc. The vehicle control terminal, the server and the vehicle can establish long connection based on an MQTT (Message Queuing Telemetry Transport, message queue telemetry transmission, abbreviated as MQTT) protocol, and the vehicle control terminal can learn the on-line state of the vehicle through the long connection. Meanwhile, the vehicle control terminal, the server and the vehicle can execute the vehicle control instruction based on the short connection established by the HTTP (Hyper Text Transfer Protocol, hypertext transfer protocol, HTTP for short). The vehicle control command is a remote control command sent to the vehicle by the vehicle control terminal, and includes, but is not limited to, unlocking/locking of the vehicle, opening/locking of a vehicle door, opening and closing of an on-vehicle air conditioner. The execution speed of the control command is limited by the signal quality of the internet of vehicles link, i.e., by the signal quality of the communication links between the control terminals and the server and between the server and the vehicle. The fluctuation of the link signal of the internet of vehicles affects the execution time of the car control instruction, if the link signal quality is poor, the car control instruction execution time may exceed the average execution time by several times, so that the prompt of the user to adjust the psychological expectation is necessary when the signal quality is poor.
The signal quality detection data of the vehicle control command communication link includes, but is not limited to, response time between the vehicle control terminal and the server and between the server and the vehicle end, accuracy of data packet transmission and the like.
And 102, obtaining a signal quality evaluation result according to the signal quality detection data.
And obtaining the estimated signal transmission time of the Internet of vehicles link and the corresponding signal quality grade according to the signal quality detection data. The signal quality grades can be divided into three stages, the corresponding signal quality is strong within 2 seconds, the corresponding signal quality between 2 and 5 seconds is general, and the corresponding signal quality between 5 and 10 seconds is low.
And step 103, updating the signal quality indication according to the signal quality evaluation result.
The signal quality indication can indicate the current signal quality level, so that a user can intuitively know the signal quality intensity.
The method for detecting the quality of the internet of vehicles link signal in the embodiment is described in detail as follows:
step 101 of obtaining signal quality detection data of the vehicle control command communication link may include obtaining a plurality of MQTT response times between the vehicle control terminal and the server and a plurality of MQTT response times between the server and the vehicle in a current period based on the MQTT protocol acquisition if the first detection condition is satisfied.
The first detection condition may be a default condition in which the vehicle control instruction communication link signal quality detection data is periodically acquired, for example, every 3 seconds or 5 seconds as a period for acquiring the vehicle control instruction communication link signal quality detection data.
In each period, the MQTT response time between the 5 vehicle control terminals and the server and the MQTT response time between the 5 servers and the vehicle can be acquired respectively. Specifically, based on the release subscription mechanism of the MQTT, the vehicle control terminal can send detection messages with sending time to the server in the current period, the server respectively records the time of receiving each detection message, the server can send the detection message with a timestamp to the vehicle after receiving the detection message sent by the vehicle control terminal, the vehicle can record the receiving time and feed back the receiving time to the server, and the server feeds back the signal transmission time between the vehicle control terminal and the vehicle and the signal transmission time between the vehicle control terminal and the server to the vehicle, so that the vehicle control terminal can obtain the MQTT response time between the vehicle control terminal and the server and the MQTT response time between the server and the vehicle at this time, and the vehicle control terminal can repeatedly send the detection message after a certain time interval and accumulatively send 5 detection messages in the current period. However, the present MQTT response time between the vehicle control terminal and the server and the MQTT response time between the server and the vehicle may be obtained by other means. It is understood that the detection message may be one or more data packets.
Step 102 may specifically include calculating an average MQTT response time between the vehicle-controlled terminal and the server and an average MQTT response time between the server and the vehicle.
Step 102 may specifically include deriving a signal quality evaluation result based on a sum of an average MQTT response time between the vehicle-controlled terminal and the server and an average MQTT response time between the server and the vehicle.
For example, if the average MQTT response time between the vehicle-controlled terminal and the server is 1 second and the average MQTT response time between the server and the vehicle is also 1 second, the sum of the two is 2 seconds, i.e., the current signal quality level is strong.
The above allows the user to know the link signal quality in real time by periodically detecting and exhibiting the link signal quality.
Step 101 of obtaining signal quality detection data of the vehicle control command communication link may further include: and if the second detection condition is met, acquiring a plurality of MQTT response times between the vehicle control terminal and the server and a plurality of MQTT response times between the server and the vehicle in the current period based on the MQTT protocol, and acquiring a plurality of HTTP response times in the current period based on the HTTP protocol. Specifically, 5 MQTT response times and 5 HTTP response times may be collected within the current period, respectively.
The first detection condition is used as a default condition, the second detection condition is used as a determination condition for active detection by a user, for example, a detection button can be set, and the user can determine that the second detection condition is met when clicking the detection button, but the method is not limited to this, and other methods can be used for determining that the second detection condition is triggered.
Accordingly, the step 102 of obtaining the signal quality evaluation result according to the signal quality detection data may specifically include: calculating to obtain the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle, and calculating to obtain the sum of the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle; calculating to obtain average HTTP response time; and obtaining a signal quality evaluation result according to the sum of the average MQTT response time and the average HTTP response time. The sum of the average MQTT response times is as described above, and will not be described here again. The HTTP response time is the time required for the vehicle control terminal to send a detection instruction to the vehicle, the detection instruction is transmitted to the vehicle through the server, and the vehicle returns to the vehicle control terminal through the server after receiving the detection instruction.
The above can result in more accurate link signal quality through MQTT response time and HTTP response time.
Further, obtaining the signal quality evaluation result according to the sum of the average MQTT response time and the average HTTP response time may include: the signal quality level is determined based on the sum of the average MQTT response times and the average HTTP response time. In particular, the signal quality level may be determined from the sum of the average MQTT response times and a weighted average of the average HTTP response times. The average HTTP response time may be assigned a greater weight than the MQTT response time HTTP response time to reflect the actual transmission speed of the link, such as an average HTTP response time weight of 0.7 and a sum of the average MQTT response times weight of 0.3.
Optionally, updating the signal quality indication according to the signal quality evaluation result in step 103 may include: and if the signal quality grade is the preset difference grade, determining a target link according to the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle, and prompting the signal quality of the target link. The target link is a link between the vehicle control terminal and the server and between the server and the vehicle, wherein the signal quality of the link meets the preset difference condition. Specifically, the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle can be calculated respectively, the ratio of the two to the respective reference response time can be calculated, one with the larger ratio is found out, and when the one with the larger ratio is larger than the threshold value, the corresponding link is used as the target link, so that a specific link section causing the signal difference of the vehicle networking link can be found out, and then the target link is prompted to the user. If the target link controls the link between the terminal and the server, the user can improve signal quality by changing the location.
Optionally, step 102 may further include obtaining a signal quality evaluation result according to the signal quality detection data: and correcting the signal quality grade according to a preset correction relation. Specifically, the preset correction relationship may be obtained by using the internet of vehicles link signal quality correction method of the second embodiment, where the preset correction relationship is obtained based on historical signal analysis of a plurality of vehicle control terminals, a server and a plurality of vehicle ends, and may be specifically characterized as a function of a vehicle control terminal position, a vehicle position, a communication period and a signal quality, where the function value is used as a correction factor, a value within 1 may be taken, a product of the function value and a response time of a currently obtained link is used as a corrected response time, and a signal quality level is determined according to the corrected response time, for example, a currently calculated signal quality evaluation result is 5 seconds, and the correction factor is 0.8, and then the corrected value is 4 seconds.
Compared with the prior art, the method and the device have the advantages that the response time of the link is detected, so that a user can timely learn the signal quality of the current vehicle control instruction communication link, the execution time of the vehicle control instruction by the user is reasonably expected, and the user experience is improved.
Example two
Fig. 2 is a schematic flow chart provided in a second embodiment of the present invention, where the embodiment is applied to a server, and a vehicle control terminal is connected with a vehicle through the server in a communication manner. The method can analyze the historical transmission data of the vehicle control terminal and the vehicle, and correct the accuracy of signal quality detection of the vehicle control terminal and the vehicle so as to further improve the accuracy of signal quality detection. The method can be executed by the device for analyzing the signal quality of the Internet of vehicles link, which is provided by the embodiment of the invention, and the device can be realized in a software mode and is configured on a server. The embodiment of the invention specifically comprises the following steps:
step 201: and acquiring the signal quality detection data of the Internet of vehicles link.
The signal quality detection data comprise response time and communication time periods of communication links between the plurality of vehicle control terminals and the server and between the server and a plurality of vehicle ends corresponding to the plurality of vehicle control terminals, detection data packet transmission conditions and position information of the plurality of vehicle control terminals and the plurality of vehicles.
Specifically, the server may collect MQTT response time, HTTP response time, etc. of its communication link with the vehicle-controlled terminal and the vehicle while recording the communication period that occurs. Detecting the packet transmission condition may include packet loss rate, packet transmission order accuracy, and the like.
Step 202: and calculating to obtain the signal quality correction relation corresponding to each vehicle control terminal according to the signal quality detection data.
The signal quality correction relationship may be specifically characterized as a function of the position of the vehicle control terminal, the position of the vehicle, the communication period, and the signal quality, where the function value is used as a correction factor, a value within 1 may be taken, and a product of the function value and the response time of the currently obtained link may be used as the corrected response time.
Step 203: pushing the signal quality correction relation to the corresponding vehicle control terminal so that the vehicle control terminal can obtain a corresponding signal quality evaluation result according to the signal quality correction relation.
The vehicle control terminal can acquire the position information of the vehicle through a GPS sensor and the like, can acquire the position information of the vehicle through long connection, and then obtains a function value according to a correction relation to carry out correction.
Step 202 of calculating a signal quality correction relationship corresponding to each vehicle control terminal according to the signal quality detection data may include: acquiring signal quality classification information of each vehicle control terminal and corresponding vehicle based on the position and the time period by adopting an unsupervised machine learning method; and obtaining a signal quality correction relation corresponding to the vehicle control terminal according to the signal quality classification information of each vehicle control terminal and the corresponding vehicle based on the position and the time period.
The non-supervised learning approach is suitable for classifying unlabeled samples. An example of unsupervised learning is clustering. The clustering algorithm mainly comprises a partitioning method and a layering method. The partitioning method comprises a K-means clustering algorithm, a K-means algorithm and a CLARANS algorithm. Taking K-means clustering algorithm as an example, the common positions of the vehicle and the vehicle control terminal can be selected and clustered according to different communication time. For example, signal quality detection data of the same type of vehicle control terminals and vehicles at the same position are extracted, response time of the different type of vehicle control terminals and vehicles at each position is calculated, strength and change conditions of the signal quality are counted, and accordingly correction relation based on communication time periods, positions and the like is obtained, and accordingly signal quality can be estimated more accurately depending on big data.
Compared with the prior art, the embodiment of the invention analyzes the signal quality intensity and the change condition through big data and corrects the signal quality evaluation result according to the actual position of the vehicle control terminal, the communication time period and the like, thereby being beneficial to more accurate signal quality detection result.
The third embodiment of the invention provides a device for detecting the quality of a link signal of an Internet of vehicles, which is configured at a vehicle control terminal. As shown in fig. 3, the detecting device 300 includes: a data acquisition module 302, a calculation module 304, and an update module 306.
The data acquisition module 302 is configured to acquire signal quality detection data of the vehicle control command communication link. The signal quality detection data comprise signal quality detection data of communication links between the vehicle control terminal and the server and between the server and the vehicle end.
The calculation module 304 is configured to obtain a signal quality evaluation result according to the signal quality detection data.
The updating module 306 is configured to update the signal quality indication according to the signal quality evaluation result.
The obtaining module 302 is specifically configured to obtain, based on the MQTT protocol, a plurality of MQTT response times between the vehicle-controlled terminal and the server and a plurality of MQTT response times between the server and the vehicle in the current period if the first detection condition is satisfied.
Correspondingly, the calculating module 304 is specifically configured to calculate and obtain an average MQTT response time between the vehicle control terminal and the server and an average MQTT response time between the server and the vehicle, and obtain a signal quality evaluation result according to a sum of the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle.
The obtaining module 302 may be further configured to obtain, based on the MQTT protocol, a plurality of MQTT response times between the vehicle-controlled terminal and the server and a plurality of MQTT response times between the server and the vehicle in the current period if the second detection condition is satisfied, and obtain, based on the HTTP protocol, a plurality of HTTP response times in the current period.
Correspondingly, the calculating module 304 is specifically configured to calculate and obtain an average MQTT response time between the vehicle control terminal and the server and an average MQTT response time between the server and the vehicle; calculating to obtain the sum of the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle; calculating to obtain average HTTP response time; and obtaining a signal quality evaluation result according to the sum of the average MQTT response time and the average HTTP response time.
Optionally, the computing module 304 may be further configured to determine a signal quality level based on the sum of the average MQTT response times and the average HTTP response time; and if the signal quality level is a preset difference level, determining a target link according to the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle. The target link is a link between the vehicle control terminal and the server and between the server and the vehicle, wherein the signal quality of the link meets the preset difference condition.
Accordingly, the update module 306 may also be used to prompt the signal quality of the target link.
The calculation module 304 may be further configured to modify the signal quality level according to a preset modification relationship.
The detection device of the embodiment can timely learn the signal quality of the current vehicle control instruction communication link by detecting the response time of the link, so that the execution time of the vehicle control instruction by the user is reasonably expected, and the user experience is improved.
Example IV
The fourth embodiment of the invention provides a device for correcting the signal quality of a vehicle networking link, which is configured on a server. As shown in fig. 4, the correction device 400 includes: a data acquisition module 402, a revised relationship analysis module 404, and a push module 406.
The data acquisition module 402 is configured to acquire internet of vehicles link signal quality detection data. The signal quality detection data comprise response time and communication time periods of communication links between the plurality of vehicle control terminals and the server and between the server and a plurality of vehicle ends corresponding to the plurality of vehicle control terminals, detection data packet transmission conditions and position information of the plurality of vehicle control terminals and the plurality of vehicles.
The correction relation analysis module 404 is configured to calculate a signal quality correction relation corresponding to each vehicle control terminal according to the signal quality detection data.
The pushing module 406 is configured to push the signal quality correction relationship to a corresponding vehicle control terminal so that the vehicle control terminal obtains a corresponding signal quality evaluation result according to the signal quality correction relationship.
Optionally, the correction relation analysis module 404 is specifically configured to obtain signal quality classification information of each vehicle control terminal and corresponding vehicle based on the position and the time period by adopting an unsupervised machine learning method; and obtaining a signal quality correction relation corresponding to the vehicle control terminal according to the signal quality classification information of each vehicle control terminal and the corresponding vehicle based on the position and the time period.
According to the analysis device provided by the embodiment of the invention, the signal quality intensity and the change condition are analyzed through the big data, and the signal quality evaluation result is corrected according to the actual position of the vehicle control terminal, the communication time period and the like, so that the signal quality detection result is more accurate.
Example five
Fig. 5 is a schematic structural diagram of an intelligent device according to a fifth embodiment of the present invention. The smart device 50 comprises a memory 51, a processor 52 and a computer program stored in the memory 51 and executable on the processor 52, wherein the processor 52 implements the technical solution according to the first embodiment when executing the program.
Example six
Fig. 6 is a schematic structural diagram of a server according to a sixth embodiment of the present invention. The server 60 comprises a memory 61, a processor 62 and a computer program stored in the memory 61 and executable on the processor 62, wherein the processor 62 implements the technical solution according to the second embodiment when executing the program.
Example seven
The seventh embodiment of the invention provides a system for detecting the quality of a link signal of the Internet of vehicles. The system may include a plurality of vehicle control terminals, a plurality of vehicles, and at least one server, where the plurality of vehicle control terminals and the plurality of vehicles are communicatively coupled to the at least one server.
The vehicle control terminal is used for executing the vehicle networking link signal quality detection method according to the first embodiment. The server is configured to execute the method for correcting the quality of the internet of vehicles link signal according to the second embodiment.
An eighth embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program for performing the technical solutions of any of the method embodiments when executed by a computer processor.
From the above description of embodiments, it will be clear to a person skilled in the art that the present invention may be implemented by means of software and necessary general purpose hardware, but of course also by means of hardware, although in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, etc., including several instructions for causing a computer device (which may be a personal computer, a server, a grid device, etc.) to execute the method according to the embodiments of the present invention.
It should be noted that, in the embodiment of the apparatus, each unit and module included are only divided according to the functional logic, but not limited to the above-mentioned division, so long as the corresponding function can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
1. The method for detecting the signal quality of the Internet of vehicles link is characterized by being applied to a vehicle control terminal, wherein the vehicle control terminal is in communication connection with a vehicle through a server; the method comprises the following steps:
acquiring signal quality detection data of a vehicle control instruction communication link; the signal quality detection data comprise signal quality detection data of communication links between the vehicle control terminal and the server and between the server and the vehicle end;
obtaining a signal quality evaluation result according to the signal quality detection data;
and updating the signal quality indication according to the signal quality evaluation result.
2. The method for detecting the quality of a link signal of the Internet of vehicles according to claim 1, wherein,
the obtaining signal quality detection data of the vehicle control instruction communication link comprises the following steps:
if the first detection condition is met, acquiring a plurality of MQTT response times between the vehicle control terminal and the server and a plurality of MQTT response times between the server and the vehicle in the current period based on an MQTT protocol;
correspondingly, the step of obtaining the signal quality evaluation result according to the signal quality detection data comprises the following steps:
calculating to obtain the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle;
and obtaining a signal quality evaluation result according to the sum of the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle.
3. The method for detecting the signal quality of the internet of vehicles according to claim 2, wherein the step of acquiring the signal quality detection data of the control command communication link includes:
if the second detection condition is met, acquiring a plurality of MQTT response times between the vehicle control terminal and the server and a plurality of MQTT response times between the server and the vehicle in the current period based on the MQTT protocol, and acquiring a plurality of HTTP response times in the current period based on the HTTP protocol;
correspondingly, the step of obtaining the signal quality evaluation result according to the signal quality detection data comprises the following steps:
calculating to obtain the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle;
calculating to obtain the sum of the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle;
calculating to obtain average HTTP response time;
and obtaining a signal quality evaluation result according to the sum of the average MQTT response time and the average HTTP response time.
4. The method for detecting signal quality of an internet of vehicles link according to claim 3, wherein obtaining the signal quality evaluation result according to the sum of the average MQTT response times and the average HTTP response time further comprises:
determining a signal quality level according to the sum of the average MQTT response times and the average HTTP response time;
if the signal quality level is a preset difference level, determining a target link according to the average MQTT response time between the vehicle control terminal and the server and the average MQTT response time between the server and the vehicle; the target link is a link between the vehicle control terminal and the server and between the server and the vehicle, wherein the signal quality of the link meets the preset difference condition;
correspondingly, the updating the signal quality indication according to the signal quality evaluation result comprises the following steps:
prompting the signal quality of the target link.
5. The method for detecting the signal quality of the internet of vehicles link according to claim 1, wherein the step of obtaining the signal quality evaluation result according to the signal quality detection data comprises the steps of:
obtaining a signal quality grade according to the signal quality detection data;
and correcting the signal quality grade according to a preset correction relation.
6. The method for correcting the signal quality of the Internet of vehicles link is applied to a server, and a vehicle control terminal is connected with a vehicle through the server in a communication way, and is characterized by comprising the following steps:
acquiring signal quality detection data of a vehicle networking link; the signal quality detection data comprise response time, communication time period and detection data packet transmission conditions of communication links between a plurality of vehicle control terminals and a server and between the server and a plurality of vehicle ends corresponding to the vehicle control terminals, and position information of the vehicle control terminals and the vehicles;
calculating to obtain a signal quality correction relation corresponding to each vehicle control terminal according to the signal quality detection data;
pushing the signal quality correction relation to a corresponding vehicle control terminal so that the vehicle control terminal can obtain a corresponding signal quality evaluation result according to the signal quality correction relation.
7. The method for correcting the signal quality of the internet of vehicles according to claim 6, wherein the calculating the signal quality correction relationship corresponding to each vehicle control terminal according to the signal quality detection data includes:
acquiring signal quality classification information of each vehicle control terminal and corresponding vehicle based on the position and the time period by adopting an unsupervised machine learning method;
and obtaining a signal quality correction relation corresponding to the vehicle control terminal according to the signal quality classification information of each vehicle control terminal and the corresponding vehicle based on the position and the time period.
8. The device is characterized by being configured at a vehicle control terminal, and the vehicle control terminal is in communication connection with a vehicle through a server; the device comprises:
the data acquisition module is used for acquiring signal quality detection data of the vehicle control instruction communication link; the signal quality detection data comprise signal quality detection data of communication links between the vehicle control terminal and the server and between the server and the vehicle end;
the calculation module is used for obtaining a signal quality evaluation result according to the signal quality detection data;
and the updating module is used for updating the signal quality indication according to the signal quality evaluation result.
9. An intelligent device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method for detecting the signal quality of the internet of vehicles link according to claims 1-5 or the method for correcting the signal quality of the internet of vehicles link according to claim 6 or 7 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the internet of vehicle link signal quality detection method according to claims 1-5 or the internet of vehicle link signal quality correction method according to claim 6 or 7.
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| CN202310360478.4A CN116389302A (en) | 2023-04-06 | 2023-04-06 | Method, device, equipment and medium for detecting and analyzing quality of Internet of vehicles link signals |
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| CN202310360478.4A CN116389302A (en) | 2023-04-06 | 2023-04-06 | Method, device, equipment and medium for detecting and analyzing quality of Internet of vehicles link signals |
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