CN111461560A - Positioning antenna performance evaluation method and device, computer equipment and storage medium - Google Patents
Positioning antenna performance evaluation method and device, computer equipment and storage medium Download PDFInfo
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Abstract
The application relates to a method and a device for evaluating the performance of a positioning antenna, computer equipment and a storage medium. The method comprises the following steps: receiving a positioning antenna performance evaluation request sent by a client, and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from a positioning terminal according to the positioning antenna performance evaluation request; acquiring a reference index value range of each performance evaluation index, and respectively determining an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range; acquiring a preset weight coefficient of each performance evaluation index, and determining a recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value; and returning the recommendation index of the positioning antenna to be evaluated to the client. By adopting the method, the accuracy of the evaluation result of the positioning antenna to be evaluated can be improved, and the problem that the selected positioning antenna is not in accordance with the requirement easily because the evaluation result is not accurate in the traditional method is solved.
Description
Technical Field
The present application relates to the field of satellite positioning technologies, and in particular, to a method and an apparatus for evaluating performance of a positioning antenna, a computer device, and a storage medium.
Background
With the continuous development and popularization of satellite positioning technology and IT technology, the demand for satellite positioning service is increasingly wide. The satellite positioning technology needs to acquire satellite signal related information and perform positioning according to the satellite signal related information, wherein the quality of the satellite signal data has a decisive effect on the accuracy of the positioning result. The influence factors of the satellite signal data quality include the number of observation satellites, signal-to-noise ratio, multipath and other positioning characteristics, the positioning characteristics directly influence the positioning effect, and an important factor determining the positioning characteristics is the positioning antenna, so that the selection of the positioning antenna becomes an important link of satellite positioning.
When a positioning antenna is selected conventionally, a service demander often evaluates the positioning antenna according to a specification of the positioning antenna by combining historical experience, or directly selects the positioning antenna without evaluating. However, this method is subject to a large subjective factor, and cannot objectively analyze the positioning antenna, and the evaluation result is inaccurate, which easily causes the problem that the selected positioning antenna does not meet the requirement.
Therefore, the conventional method for evaluating the performance of the positioning antenna has the problems that the evaluation result is inaccurate, and the selected positioning antenna is not in accordance with the requirement.
Disclosure of Invention
Therefore, it is necessary to provide a method, an apparatus, a computer device and a storage medium for evaluating performance of a positioning antenna, aiming at the technical problem that the evaluation result of the conventional method for evaluating performance of a positioning antenna is inaccurate and the selected positioning antenna is not in accordance with the requirement.
A method of positioning antenna performance evaluation, the method comprising:
receiving a positioning antenna performance evaluation request sent by a client, and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from a positioning terminal according to the positioning antenna performance evaluation request;
acquiring a reference index value range of each performance evaluation index, and respectively determining an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
acquiring a preset weight coefficient of each performance evaluation index, and determining a recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and returning the recommendation index of the positioning antenna to be evaluated to the client.
In one embodiment, the obtaining, according to the positioning antenna performance evaluation request, actual measurement index values of the positioning antenna to be evaluated under different performance evaluation indexes includes:
acquiring satellite signal data received by the positioning antenna to be evaluated from a positioning terminal according to the positioning antenna performance evaluation request;
and acquiring a satellite signal data type corresponding to the performance evaluation index, and acquiring the actual measurement index value from the satellite signal data according to the satellite signal data type.
In one embodiment, the obtaining the measured indicator value from the satellite signal data comprises:
carrying out format conversion on the satellite signal data to obtain converted satellite signal data;
and acquiring the actual measurement index value according to the converted satellite signal data.
In one embodiment, the determining the initial evaluation value of each performance evaluation index according to the measured index value and the reference index value range includes:
determining whether the measured index value is in the reference index value range;
when the measured index value is not in the reference index value range, acquiring a first initial evaluation value;
and taking the first initial evaluation value as an initial evaluation value of each performance evaluation index.
In one embodiment, the determining the initial evaluation value of each performance evaluation index according to the measured index value and the reference index value range further includes:
when the actual measurement index value is in the reference index value range, acquiring a plurality of reference index value intervals; wherein the plurality of reference index value sections respectively have corresponding second initial evaluation values;
determining a target reference index value interval corresponding to the actual measurement index value;
and taking the second initial evaluation value corresponding to the target reference index value section as the initial evaluation value of each performance evaluation index.
In one embodiment, the determining a recommended index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value includes:
weighting the initial evaluation value of each performance evaluation index through a corresponding weight coefficient to obtain a weighted evaluation value of each performance evaluation index;
determining a total evaluation value of the positioning antenna to be evaluated according to the weighted evaluation value of each performance evaluation index;
and obtaining the material cost of the positioning antenna to be evaluated, and determining the recommendation index of the positioning antenna to be evaluated according to the total evaluation value and the material cost.
In one embodiment, the determining the recommendation index of the positioning antenna to be evaluated according to the total evaluation value and the material cost includes:
calculating the ratio of the total evaluation value to the material cost to be used as the ratio of the cost performance of the positioning antenna to be evaluated;
and determining the recommendation index of the positioning antenna to be evaluated according to the ratio of the cost performance to the performance ratio.
A positioning antenna performance evaluation apparatus, the apparatus comprising:
the system comprises an actual measurement index value acquisition module, a positioning terminal and a positioning index value evaluation module, wherein the actual measurement index value acquisition module is used for receiving a positioning antenna performance evaluation request sent by a client and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from the positioning terminal according to the positioning antenna performance evaluation request;
an initial evaluation value determining module, configured to obtain a reference index value range of each performance evaluation index, and determine an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
a recommended index determining module, configured to obtain a preset weight coefficient of each performance evaluation index, and determine a recommended index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and the recommendation index returning module is used for returning the recommendation index of the positioning antenna to be evaluated to the client.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
receiving a positioning antenna performance evaluation request sent by a client, and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from a positioning terminal according to the positioning antenna performance evaluation request;
acquiring a reference index value range of each performance evaluation index, and respectively determining an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
acquiring a preset weight coefficient of each performance evaluation index, and determining a recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and returning the recommendation index of the positioning antenna to be evaluated to the client.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
receiving a positioning antenna performance evaluation request sent by a client, and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from a positioning terminal according to the positioning antenna performance evaluation request;
acquiring a reference index value range of each performance evaluation index, and respectively determining an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
acquiring a preset weight coefficient of each performance evaluation index, and determining a recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and returning the recommendation index of the positioning antenna to be evaluated to the client.
The method, the device, the computer equipment and the storage medium for evaluating the performance of the positioning antenna acquire the actual measurement index values of the positioning antenna to be evaluated under different performance evaluation indexes from the positioning terminal by receiving the positioning antenna performance evaluation request sent by the client, compare the actual measurement index values with the corresponding reference index value range, acquire the initial evaluation values of the performance evaluation indexes according to the comparison result, realize the initial evaluation of the performance evaluation indexes of the positioning antenna to be evaluated, acquire the initial evaluation values by actually testing the positioning antenna to be evaluated, greatly improve the accuracy of the evaluation result of the positioning antenna to be evaluated, further determine the recommended index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value of the performance evaluation indexes, realize the integral evaluation of the positioning antenna to be evaluated, and return the recommended index of the positioning antenna to be evaluated to the client, the positioning antenna can be selected quickly according to the recommendation index, so that the problem that the selected positioning antenna is not in accordance with requirements due to inaccurate evaluation results in the traditional positioning antenna performance evaluation method is solved.
Drawings
Fig. 1 is an application scenario diagram of a positioning antenna performance evaluation method in an embodiment;
FIG. 2 is a flow chart illustrating a method for evaluating performance of a positioning antenna according to an embodiment;
FIG. 3 is a flowchart illustrating the step of determining an initial evaluation value in one embodiment;
FIG. 4 is a flowchart showing a step of determining an initial evaluation value in another embodiment;
FIG. 5 is a schematic flow chart illustrating the step of determining a recommendation index in another embodiment;
FIG. 6 is a block diagram of an embodiment of a positioning antenna performance evaluation apparatus;
FIG. 7 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The method for evaluating the performance of the positioning antenna can be applied to the application environment shown in fig. 1. Wherein the client 102 and the server 104 communicate over a network. The server 104 communicates with the positioning terminal 106 via a network. The client 102 may include, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, and the server 104 may be implemented by an independent server or a server cluster composed of a plurality of servers.
In one embodiment, as shown in fig. 2, a method for evaluating performance of a positioning antenna is provided, which is described by taking the method as an example applied to the server 104 in fig. 1, and includes the following steps:
step 202, receiving a positioning antenna performance evaluation request sent by a client, and obtaining actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from a positioning terminal according to the positioning antenna performance evaluation request.
Wherein, the performance evaluation index represents an index capable of evaluating the performance of the antenna, and the performance evaluation index may include: antenna multipath error value, number of observation satellites, cycle slip ratio, average signal-to-noise ratio, invalid epoch ratio, cold start time, and the like.
In a specific implementation, the client 102 may generate a positioning antenna performance evaluation request for evaluating a positioning antenna to be evaluated based on a trigger operation of a user, and send the positioning antenna performance evaluation request to the server 104, and the server 104 receives the positioning antenna performance evaluation request and obtains satellite signal data from the positioning terminal 106 according to the positioning antenna performance evaluation request. The satellite signal data is data received by the positioning antenna to be evaluated, and actual measurement index values of the positioning antenna to be evaluated under different performance evaluation indexes are obtained according to the satellite signal data.
More specifically, the server 104 needs to obtain a performance evaluation index of the positioning antenna to be evaluated before obtaining the actual measurement index value, and after obtaining the performance evaluation index, further obtains the actual measurement index value of the positioning antenna to be evaluated under different performance evaluation indexes from the satellite signal data according to the satellite signal data type of the performance evaluation index.
Step S204, obtaining the reference index value range of each performance evaluation index, and respectively determining the initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range.
The reference index value range represents a reference value range of the performance evaluation index determined according to the service demand.
In a specific implementation, after obtaining the performance evaluation indexes of the positioning antenna to be evaluated, the server 104 further obtains the reference index value range of each performance evaluation index, and further may determine the initial evaluation value of each performance evaluation index according to the actual measurement index value of each performance evaluation index and the reference index value range of each performance evaluation index.
More specifically, the server 104 may determine an initial evaluation value of each performance evaluation index of the positioning antenna to be evaluated by determining whether an actual measurement index value of each performance evaluation index is within a reference index value range corresponding to the actual measurement index value.
And step S206, acquiring the weight coefficient of each preset performance evaluation index, and determining the recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value.
The weight coefficient may be a coefficient indicating the importance of each performance evaluation index.
In a specific implementation, after obtaining the initial evaluation value of each performance evaluation index of the positioning antenna to be evaluated, the server 104 needs to obtain a weight coefficient of each performance evaluation index, perform weighting processing on the initial evaluation value of each performance evaluation index through the weight coefficient to obtain a weighted evaluation value of each performance evaluation index, and obtain a total evaluation value of the positioning antenna to be evaluated according to the weighted evaluation value. And further, acquiring the material cost of the positioning antenna to be evaluated, and determining the recommendation index of the positioning antenna to be evaluated according to the total evaluation value and the material cost of the positioning antenna to be evaluated.
And step S208, returning the recommendation index of the positioning antenna to be evaluated to the client.
In a specific implementation, after determining the recommendation index of the positioning antenna to be evaluated, the server 104 may return the recommendation index to the client 102, and the client 102 may display the positioning antenna to be evaluated and the corresponding recommendation index in an interface for the user to view and select.
In practical application, the server 104 may further return the actual measurement index value, the corresponding reference index value range, the initial evaluation value, the total evaluation value, and the like of each performance evaluation index of the positioning antenna to be evaluated to the client 106, so that the user can check the performance evaluation result of each performance evaluation index of the positioning antenna to be evaluated.
Further, the server 104 may also generate an evaluation report of the positioning antenna to be evaluated according to an actual measurement index value of each performance evaluation index of the positioning antenna to be evaluated, a corresponding reference index value range, an initial evaluation value, a total evaluation value, a recommendation index, and the like, for downloading by a user.
In the method for evaluating the performance of the positioning antenna, the positioning antenna performance evaluation request sent by the client is received, the actual measurement index values of the positioning antenna to be evaluated under different performance evaluation indexes are compared with the corresponding reference index value ranges to obtain the initial evaluation values of the performance evaluation indexes, the initial evaluation of the performance evaluation indexes of the positioning antenna to be evaluated is realized, the initial evaluation values are obtained by actually testing the positioning antenna to be evaluated, the accuracy of the evaluation result of the positioning antenna to be evaluated is greatly improved, further, the recommendation index of the positioning antenna to be evaluated is determined according to the weight coefficient of each performance evaluation index and the initial evaluation value, the overall evaluation of the positioning antenna to be evaluated is realized, the recommendation index of the positioning antenna to be evaluated is returned to the client, the positioning antenna can be quickly selected according to the recommendation index, and therefore, the method solves the problem that the performance evaluation result of the traditional positioning antenna is inaccurate, so that the selected positioning antenna is not in accordance with the requirement easily.
In an embodiment, the step S202 specifically includes: acquiring satellite signal data received by a positioning antenna to be evaluated from a positioning terminal according to a positioning antenna performance evaluation request; and acquiring the satellite signal data type of the performance evaluation index, and acquiring an actual measurement index value from the satellite signal data according to the satellite signal data type.
The satellite signal data may represent observation text data and navigation text data obtained by capturing and tracking a satellite signal. The satellite signal data can be obtained by accessing the positioning antenna to be evaluated to the positioning terminal.
The positioning terminal is used for storing satellite signal data received by the positioning antenna.
In a specific implementation, after receiving the positioning antenna performance evaluation request, the server 104 obtains each performance evaluation index of the positioning antenna to be evaluated according to the positioning antenna performance evaluation request, and obtains satellite signal data received by the positioning antenna to be evaluated from the positioning terminal 106 according to the positioning antenna performance evaluation request. After obtaining each performance evaluation index, determining the satellite signal data type corresponding to each performance evaluation index, and further performing correlation algorithm processing on the satellite signal data according to the satellite signal data type to obtain the actual measurement index value of each performance evaluation index of the positioning antenna to be evaluated. For example, when the satellite signal data type of the performance evaluation index is determined to be the average signal-to-noise ratio, signal-to-noise ratio data is determined to be obtained from the satellite signal data, and the average signal-to-noise ratio is obtained by averaging the signal-to-noise ratio data, that is, the measured value of the average signal-to-noise ratio is obtained.
In the embodiment, satellite signal data is obtained from the positioning terminal, actual measurement index values of the positioning antenna to be evaluated under different performance evaluation indexes are obtained according to the satellite signal data type of the performance evaluation index, and the actual measurement index values of the performance evaluation index are determined according to the satellite signal data actually received by the positioning antenna to be evaluated, so that the performance of the positioning antenna can be further evaluated, the accuracy and the effectiveness of the evaluation result of the positioning antenna to be evaluated are improved, and the technical problem that the evaluation result is influenced by subjective factors and the evaluation result is easy to have a large error in the evaluation result in the traditional evaluation method can be solved.
In one embodiment, the obtaining the measured indicator value from the satellite signal data includes: carrying out format conversion on the satellite signal data to obtain converted satellite signal data; and acquiring an actual measurement index value according to the converted satellite signal data.
In a specific implementation, a format of satellite signal data received by the positioning antenna may be different from a format of satellite signal data to be acquired by the server 104, and therefore, after the server 104 acquires the satellite signal data received by the positioning antenna to be evaluated from the positioning terminal 106, format conversion needs to be performed on the satellite signal data to obtain satellite signal data with a uniform format, the satellite signal data is used as converted satellite signal data, and then the converted satellite signal data is processed to obtain an actual measurement index value of each performance evaluation index of the positioning antenna to be evaluated.
Alternatively, the positioning terminal 106 may transmit the satellite signal data to the server 104 for format conversion in real time, or may transmit the satellite signal data to the server 104 for format conversion after collecting the positioning signal data for a period of time.
In this embodiment, format conversion is performed on the satellite signal data to obtain satellite signal data with a uniform format, and further, an actual measurement index value of each performance evaluation index is obtained according to the converted satellite signal data, so that an initial evaluation value of each performance evaluation index is determined according to the actual measurement index value.
In an embodiment, as shown in fig. 3, the step S204 specifically includes:
step S302, determining whether the actual measurement index value is in a reference index value range;
step S304, when the actual measurement index value is not in the reference index value range, acquiring a first initial evaluation value;
in step S306, the first initial evaluation value is used as the initial evaluation value of each performance evaluation index.
In the concrete implementation, each performance evaluation index of the positioning antenna to be evaluated has a corresponding reference index value range, if the actual measurement index value is not in the reference index value range, it is indicated that the performance of the positioning antenna to be evaluated corresponding to the actual measurement index value does not meet the reference requirement, a first initial evaluation value can be obtained, and the first initial evaluation value is used as the initial evaluation value of the performance evaluation index of the positioning antenna to be evaluated.
In this embodiment, by determining a relationship between an actual measurement index value of a to-be-evaluated positioning antenna performance evaluation index and a reference index value range, when the actual measurement index value is not within the reference index value range, the first initial evaluation value is used as an initial evaluation value of the to-be-evaluated positioning antenna performance evaluation index. The total evaluation value of the positioning antenna to be evaluated can be further determined conveniently according to the initial evaluation value, and a user can quickly know whether the performance evaluation index of the positioning antenna to be evaluated meets the reference requirement or not according to the initial evaluation value conveniently.
In one embodiment, as shown in fig. 4, the step S204 further includes:
step S402, when the actual measurement index value is in the reference index value range, acquiring a plurality of reference index value intervals; the plurality of reference index value intervals respectively have corresponding second initial evaluation values;
step S404, determining a target reference index value section corresponding to the actual measurement index value;
in step S406, the second initial evaluation value corresponding to the target reference index value section is used as the initial evaluation value of each performance evaluation index.
In a specific implementation, the reference index value range of each performance evaluation index may be further divided into a plurality of reference index value sections, when an actual measurement index value of the positioning antenna to be evaluated under one of the performance evaluation indexes is within a corresponding reference index value range, a plurality of reference index value sections corresponding to the performance evaluation index may be acquired, a target reference index value section where the actual measurement index value of the performance evaluation index is located is determined from the plurality of reference index value sections, and a second initial evaluation value corresponding to the target reference index value section is used as the initial evaluation value of the performance evaluation index.
In this embodiment, when the actual measurement index value of the performance evaluation index of the positioning antenna to be evaluated is within the reference index value range, the reference index value range is further divided into a plurality of reference index value intervals, so that the evaluation of the initial evaluation value of the performance of the positioning antenna to be evaluated is further refined, different reference index value intervals respectively correspond to different initial evaluation values, comparison and analysis between the performance evaluation indexes are facilitated, and further determination of the total evaluation value of the positioning antenna to be evaluated is facilitated according to the initial evaluation value.
In an embodiment, as shown in fig. 5, the step S206 specifically includes:
step S502, the initial evaluation values of the performance evaluation indexes are weighted by corresponding weight coefficients respectively to obtain weighted evaluation values of the performance evaluation indexes;
step S504, determining the total evaluation value of the positioning antenna to be evaluated according to the weighted evaluation value of each performance evaluation index;
step S506, the material cost of the positioning antenna to be evaluated is obtained, and the recommendation index of the positioning antenna to be evaluated is determined according to the total evaluation value and the material cost.
The material cost can include the sum of the cost of each component of the positioning antenna and the set cost of the positioning antenna.
In a specific implementation, after acquiring the initial evaluation value and the weight coefficient of each performance evaluation index of the positioning antenna to be evaluated, the server 104 multiplies the initial evaluation value of each performance evaluation index by the corresponding weight coefficient, and uses the obtained product as the weighted evaluation value of each performance evaluation index. Further, the method for determining the total evaluation value of the positioning antenna to be evaluated according to the weighted evaluation value of each performance evaluation index may be: and adding the weighted evaluation values of the performance evaluation indexes, and taking the obtained sum value as the total evaluation value of the positioning antenna to be evaluated. Further, before determining the recommended index of the positioning antenna to be evaluated, the server 104 obtains the material cost of the positioning antenna to be evaluated, and determines the recommended index of the positioning antenna to be evaluated according to the total evaluation value and the material cost of the positioning antenna to be evaluated.
In the embodiment, the initial evaluation values of the performance evaluation indexes of the positioning antenna to be evaluated are weighted by corresponding weight coefficients respectively, the total evaluation value of the positioning antenna to be evaluated is determined according to the weighted evaluation values after weighting, the weighted average value of the performance evaluation indexes is determined by setting the weight coefficients for the performance evaluation indexes, the total evaluation value is determined according to the weighted evaluation values, comparison of the performance evaluation indexes among different positioning antennas is facilitated, the advantage performance of the positioning antenna to be evaluated is highlighted, and the objectivity of the evaluation result of the positioning antenna to be evaluated can be improved. The recommendation index of the positioning antenna to be evaluated is determined through the total evaluation value and the material cost, so that the reference degree of the evaluation result of the positioning antenna can be improved, and the positioning antenna can be directly and clearly selected according to the recommendation index.
In an embodiment, the step of determining the recommendation index of the positioning antenna to be evaluated according to the total evaluation value and the material cost includes: calculating the ratio of the total evaluation value to the material cost to be used as the ratio of the cost performance of the positioning antenna to be evaluated; and determining the recommendation index of the positioning antenna to be evaluated according to the ratio of the cost performance.
In a specific implementation, after the server 104 obtains the total evaluation value and the material cost of the positioning antenna to be evaluated, the ratio of the total evaluation value to the material cost may be calculated to determine the ratio of the cost performance of the positioning antenna to be evaluated. The cost performance ratio of each positioning antenna to be evaluated can be further sorted according to the order of the numerical values, and the recommendation index of the positioning antenna to be evaluated is determined according to the sorting, specifically, the higher the cost performance ratio, the larger the recommendation index.
In the embodiment, the recommendation index of the positioning antenna to be evaluated is determined according to the ratio of the total evaluation value of the positioning antenna to be evaluated to the cost performance of the material cost, and the requirement of a user for purchasing the positioning antenna is fully considered, so that the reference degree of the evaluation result of the positioning antenna to be evaluated can be improved, and the user can conveniently and quickly select the required positioning antenna according to the recommendation index.
In an embodiment, in order to more clearly illustrate the technical solutions provided by the embodiments of the present application, an application example of the method for evaluating the performance of a positioning antenna of the present application is described in detail below, and a specific flow of the method is as follows:
firstly, determining a performance evaluation index and a reference index value range for evaluating a positioning antenna to be evaluated according to service requirements, as shown in the following table 1, a first column in the table represents a performance evaluation index name of the positioning antenna, and a second column and a third column form the reference index value range, for example, the reference index value range of an antenna multipath error value is less than 0.5, for example, the number of observation satellites is L1, L2 and L5, wherein L1, L2 and L5 respectively represent different frequency bands of satellite signals, and the more frequency bands of satellite signals received by the positioning antenna to be evaluated indicates that the performance of the positioning antenna to be evaluated is better.
And secondly, accessing a positioning antenna to be evaluated at the positioning terminal, and observing and receiving satellite signal data. When the server receives a positioning antenna performance evaluation request sent by the client, the server can acquire actual measurement index values of the positioning antenna to be evaluated under different performance evaluation indexes from the positioning terminal, and acquire each performance evaluation index and a corresponding reference index value range. Whether the actual measurement index value of each performance evaluation index is within the reference index value range is judged, and the initial evaluation value of each performance evaluation index is determined according to the judgment result, as shown in table 2, which is an example of the scoring standard for quality detection of each performance evaluation index corresponding to table 1. The contents of the first column in the table indicate the initial evaluation value of each performance evaluation index, and the other columns indicate the reference index value sections of each performance evaluation index. For example, for the antenna multipath error value, the reference index value range is less than 0.5, and when the measured index value of the positioning antenna to be evaluated under the antenna multipath error value is not within the reference index value range, that is, the measured index value is greater than 0.5, the corresponding initial evaluation value is 0.
When the actual measurement index value of the positioning antenna to be evaluated under the antenna multipath error value is within the reference index value range, the section corresponding to the actual measurement index value can be further determined, and the initial evaluation value is determined, for example, when the actual measurement index value is less than 0.1, the initial evaluation value corresponds to 4; when the measured index value is between 0.1 and 0.2, the initial evaluation value is 3 correspondingly; when the measured index value is between 0.2 and 0.3, the initial evaluation value is corresponding to 2; when its measured index value is between 0.3 and 0.4, the initial evaluation value corresponds to 1. Similarly, initial evaluation values for other performance evaluation indicators may be determined.
TABLE 1
After the initial evaluation value of each performance evaluation index is determined, the total evaluation value of each performance evaluation index is determined according to the weight coefficient of each performance evaluation index, and the calculation formula can be as follows:
initial estimation value omega of antenna multipath error value1+ initial evaluation value of observing satellite number omega2+ cycle slip ratio initial evaluation value ω3+ average SNR initial estimate value ω4+ invalid epoch ratio initial evaluation value ω5+ initial evaluation value of cold start time ω6，
Wherein, ω is1、ω2、ω3、ω4、ω5、ω6And weight coefficients representing the performance evaluation indexes.
And after the total evaluation value of the positioning antenna to be evaluated is obtained, the recommendation index of the positioning antenna to be evaluated is further determined according to the total evaluation value of the positioning antenna to be evaluated and the material cost. As shown in table 3, an example of determining the recommendation index of each to-be-evaluated positioning antenna after comparing the material costs of the to-be-evaluated positioning antennas with the total evaluation value is shown. For example, the ratio of the material cost of the positioning antenna 1 to the total evaluation value is 0.095, and it can be seen from table 3 that the cost performance of the positioning antenna 1 is the highest, so the recommended index of the antenna 1 can be set to 100, which is denoted as the first recommended positioning antenna.
TABLE 2
TABLE 3
| Positioning antenna | Cost of antenna materials | Overall evaluation value | Ratio of performance to price ratio | Index of recommendation |
| Positioning antenna 1 | 42 | 4 | 0.095 | 100 |
| Positioning antenna 2 | 45 | 4 | 0.088 | 99 |
| Positioning antenna 3 | 47 | 3 | 0.0638 | 98 |
| Positioning antenna 4 | 32 | 2 | 0.0625 | 97 |
| Positioning antenna 5 | 30 | 1 | 0.0333 | 96 |
In the embodiment, by receiving a positioning antenna performance evaluation request sent by a client, comparing actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes with corresponding reference index value ranges to obtain initial evaluation values of the performance evaluation indexes, so as to realize initial evaluation of the performance evaluation indexes of the positioning antenna to be evaluated, and by actually testing the positioning antenna to be evaluated, so as to obtain the initial evaluation values, the accuracy of the evaluation result of the positioning antenna to be evaluated is greatly improved, further, a recommended index of the positioning antenna to be evaluated is determined according to the weight coefficient of each performance evaluation index and the initial evaluation value, so as to realize the overall evaluation of the positioning antenna to be evaluated, and the recommended index of the positioning antenna to be evaluated is returned to the client, so that the positioning antenna can be quickly selected according to the recommended index, thereby solving the problem that the evaluation result in the traditional positioning antenna performance evaluation method is inaccurate, the problem that the selected positioning antenna is inconsistent with the requirement is easily caused.
It should be understood that although the various steps in the flow charts of fig. 2-5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-5 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 6, there is provided a positioning antenna performance evaluation apparatus including: an actual measurement index value obtaining module 602, an initial evaluation value determining module 604, a recommendation index determining module 606, and a recommendation index returning module 608, wherein:
an actual measurement index value obtaining module 602, configured to receive a positioning antenna performance evaluation request sent by a client, and obtain, from a positioning terminal, actual measurement index values of a to-be-evaluated positioning antenna under different performance evaluation indexes according to the positioning antenna performance evaluation request;
an initial evaluation value determining module 604, configured to obtain a reference index value range of each performance evaluation index, and determine an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
a recommendation index determining module 606, configured to obtain a weight coefficient of each preset performance evaluation index, and determine a recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and a recommendation index returning module 608, configured to return the recommendation index of the positioning antenna to be evaluated to the client.
In an embodiment, the measured index value obtaining module 602 is specifically configured to: acquiring satellite signal data received by a positioning antenna to be evaluated from a positioning terminal according to a positioning antenna performance evaluation request; and acquiring a satellite signal data type corresponding to the performance evaluation index, and acquiring an actual measurement index value from the satellite signal data according to the satellite signal data type.
In an embodiment, the measured indicator value obtaining module 602 is further configured to: carrying out format conversion on the satellite signal data to obtain converted satellite signal data; and acquiring an actual measurement index value according to the converted satellite signal data.
In an embodiment, the initial evaluation value determining module 604 is specifically configured to: determining whether the measured index value is in a reference index value range; when the actual measurement index value is not in the reference index value range, acquiring a first initial evaluation value; the first initial evaluation value is used as an initial evaluation value for each performance evaluation index.
In one embodiment, the initial evaluation value determining module 604 is further configured to: when the actual measurement index value is in the reference index value range, acquiring a plurality of reference index value intervals; the plurality of reference index value intervals respectively have corresponding second initial evaluation values; determining a target reference index value interval corresponding to the actual measurement index value; and taking the second initial evaluation value corresponding to the target reference index value section as the initial evaluation value of each performance evaluation index.
In an embodiment, the recommendation index determining module 606 is specifically configured to: weighting the initial evaluation values of the performance evaluation indexes through corresponding weight coefficients to obtain weighted evaluation values of the performance evaluation indexes; determining a total evaluation value of the positioning antenna to be evaluated according to the weighted evaluation value of each performance evaluation index; and obtaining the material cost of the positioning antenna to be evaluated, and determining the recommendation index of the positioning antenna to be evaluated according to the total evaluation value and the material cost.
In one embodiment, the recommendation index determining module 606 is further configured to: calculating the ratio of the total evaluation value to the material cost to be used as the ratio of the cost performance of the positioning antenna to be evaluated; and determining the recommendation index of the positioning antenna to be evaluated according to the ratio of the cost performance.
It should be noted that, the positioning antenna performance evaluation apparatus of the present application corresponds to the positioning antenna performance evaluation method of the present application one to one, and the technical features and the beneficial effects described in the embodiments of the positioning antenna performance evaluation method are all applicable to the embodiments of the positioning antenna performance evaluation apparatus, and specific contents may refer to the descriptions in the embodiments of the method of the present application, which are not described herein again, and thus are stated herein.
Furthermore, the modules in the above positioning antenna performance evaluation apparatus may be wholly or partially implemented by software, hardware, or a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 7. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing data generated in the process of evaluating the performance of the positioning antenna. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of positioning antenna performance evaluation.
Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, there is provided a computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
receiving a positioning antenna performance evaluation request sent by a client, and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from a positioning terminal according to the positioning antenna performance evaluation request;
acquiring a reference index value range of each performance evaluation index, and respectively determining an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
acquiring a weight coefficient of each preset performance evaluation index, and determining a recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and returning the recommendation index of the positioning antenna to be evaluated to the client.
In one embodiment, a computer device is further provided, which includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the above method embodiments when executing the computer program.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
receiving a positioning antenna performance evaluation request sent by a client, and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from a positioning terminal according to the positioning antenna performance evaluation request;
acquiring a reference index value range of each performance evaluation index, and respectively determining an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
acquiring a weight coefficient of each preset performance evaluation index, and determining a recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and returning the recommendation index of the positioning antenna to be evaluated to the client.
In an embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
It will be understood by those of ordinary skill in the art that all or a portion of the processes of the methods of the embodiments described above may be implemented by a computer program that may be stored on a non-volatile computer-readable storage medium, which when executed, may include the processes of the embodiments of the methods described above, wherein any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for evaluating performance of a positioning antenna, the method comprising:
receiving a positioning antenna performance evaluation request sent by a client, and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from a positioning terminal according to the positioning antenna performance evaluation request;
acquiring a reference index value range of each performance evaluation index, and respectively determining an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
acquiring a preset weight coefficient of each performance evaluation index, and determining a recommendation index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and returning the recommendation index of the positioning antenna to be evaluated to the client.
2. The method according to claim 1, wherein the obtaining, from the positioning terminal, measured index values of the positioning antenna to be evaluated under different performance evaluation indexes according to the positioning antenna performance evaluation request includes:
acquiring satellite signal data received by the positioning antenna to be evaluated from a positioning terminal according to the positioning antenna performance evaluation request;
and acquiring the satellite signal data type of the performance evaluation index, and acquiring the actual measurement index value from the satellite signal data according to the satellite signal data type.
3. The method of claim 2, wherein said obtaining said measured indicia value from said satellite signal data comprises:
carrying out format conversion on the satellite signal data to obtain converted satellite signal data;
and acquiring the actual measurement index value according to the converted satellite signal data.
4. The method of claim 1, wherein said determining an initial evaluation value for each of said performance evaluation metrics based on said measured metric value and said reference metric value range comprises:
determining whether the measured index value is in the reference index value range;
when the measured index value is not in the reference index value range, acquiring a first initial evaluation value;
and taking the first initial evaluation value as an initial evaluation value of each performance evaluation index.
5. The method of claim 4, wherein said determining an initial evaluation value for each of said performance evaluation indicators based on said measured indicator value and said reference indicator value range, respectively, further comprises:
when the actual measurement index value is in the reference index value range, acquiring a plurality of reference index value intervals; wherein the plurality of reference index value sections respectively have corresponding second initial evaluation values;
determining a target reference index value interval corresponding to the actual measurement index value;
and taking the second initial evaluation value corresponding to the target reference index value section as the initial evaluation value of each performance evaluation index.
6. The method of claim 1, wherein the determining the recommended index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value comprises:
weighting the initial evaluation value of each performance evaluation index through a corresponding weight coefficient to obtain a weighted evaluation value of each performance evaluation index;
determining a total evaluation value of the positioning antenna to be evaluated according to the weighted evaluation value of each performance evaluation index;
and obtaining the material cost of the positioning antenna to be evaluated, and determining the recommendation index of the positioning antenna to be evaluated according to the total evaluation value and the material cost.
7. The method of claim 6, wherein the determining the recommended index of the positioning antenna to be evaluated according to the total evaluation value and the material cost comprises:
calculating the ratio of the total evaluation value to the material cost to be used as the ratio of the cost performance of the positioning antenna to be evaluated;
and determining the recommendation index of the positioning antenna to be evaluated according to the ratio of the cost performance to the performance ratio.
8. A positioning antenna performance evaluation apparatus, the apparatus comprising:
the system comprises an actual measurement index value acquisition module, a positioning terminal and a positioning index value evaluation module, wherein the actual measurement index value acquisition module is used for receiving a positioning antenna performance evaluation request sent by a client and acquiring actual measurement index values of a positioning antenna to be evaluated under different performance evaluation indexes from the positioning terminal according to the positioning antenna performance evaluation request;
an initial evaluation value determining module, configured to obtain a reference index value range of each performance evaluation index, and determine an initial evaluation value of each performance evaluation index according to the actual measurement index value and the reference index value range;
a recommended index determining module, configured to obtain a preset weight coefficient of each performance evaluation index, and determine a recommended index of the positioning antenna to be evaluated according to the weight coefficient and the initial evaluation value;
and the recommendation index returning module is used for returning the recommendation index of the positioning antenna to be evaluated to the client.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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