CN110471088A

CN110471088A - Method, device, computer equipment and storage medium

Info

Publication number: CN110471088A
Application number: CN201910755205.3A
Authority: CN
Inventors: 徐文赢; 刘畅; 袁义龙
Original assignee: Tencent Technology Shenzhen Co Ltd
Current assignee: Tencent Technology Shenzhen Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2019-11-19
Anticipated expiration: 2039-08-15
Also published as: CN110471088B

Abstract

This application involves a kind of method, device, computer equipment and storage mediums, obtain the standard Protocol Data for being directed to positioning signal to be assessed；Standard Protocol Data is parsed, obtains the satellite information of standard Protocol Data carrying, satellite information includes the information for issuing the position location satellite of positioning signal to be assessed；Satellite information is characterized, feature to be assessed is obtained；Feature to be assessed is mapped, the quality assessment result for positioning signal to be assessed is obtained.Since the satellite information accuracy parsed based on mark protocol data is high, the influence by satellite signal strength can be reduced, the influence by positioning accuracy can also be reduced, without relying on network data.In this way, to obtain feature to be assessed based on satellite information, then feature to be assessed is mapped, obtained quality assessment result is more accurate.It is thus possible to improve the reliability of location information quality assessment result.

Description

Method, device, computer equipment and storage medium

Technical field

This application involves technical field of computer information processing, more particularly to a kind of method, device, Computer equipment and storage medium.

Background technique

With the rapid development of information technology, the application of the information processing technology has been deep into the every aspect of life, especially It is the processing of location information.For example, GPS positioning signal has been widely applied to the locating module of GPS device, Internet map In.

In traditional method, matter is carried out by the satellite signal strength of GPS positioning signal, positioning accuracy Amount assessment, the reliability of positioning signal is measured with this.However, when and positioning accuracy request weak in satellite signal strength is high, it will Quality evaluation can not be carried out, and positioning accuracy has the possibility modified, and does not have uniformity.Therefore, traditional location information Processing method has that reliability is lower.

Summary of the invention

Based on this, it is necessary in view of the above technical problems, provide a kind of positioning letter of raising location information processing accuracy Cease processing method, device, computer equipment and storage medium.

A kind of method, which comprises

Obtain the standard Protocol Data for being directed to positioning signal to be assessed；

The standard Protocol Data is parsed, the satellite information that the standard Protocol Data carries is obtained, it is described to defend Star information includes issuing the information of the position location satellite of the positioning signal to be assessed；

The satellite information is characterized, feature to be assessed is obtained；

The feature to be assessed is mapped, the quality assessment result for the positioning signal to be assessed is obtained.

The satellite information further includes the position location satellite and the reception positioning to be assessed in one of the embodiments, The information of the receiving device of signal；

The feature to be assessed includes the linked character based on the receiving device and the position location satellite substar.

The linked character includes at least one in following two in one of the embodiments:

The positional relationship feature of the receiving device and the position location satellite substar；

The substar distance relation feature of the receiving device and the position location satellite.

Whether the positional relationship feature includes the receiving device in the position location satellite in one of the embodiments, Asterism under feature in convex closure；It is described that the satellite information is characterized, obtain feature to be assessed, comprising:

According to the substar position of each position location satellite, the substar for forming convex closure is determined；

The two neighboring substar for forming the convex closure is connected with the position of the receiving device respectively, forms one point Measure angle；

Each component angle summation corresponding to the convex closure, obtain angle and；

According to the angle and determine the receiving device whether the feature under the asterism of the position location satellite in convex closure.

The distance relation feature includes the star of the receiving device Yu the position location satellite in one of the embodiments, The distance feature of lower center of gravity；It is described that the satellite information is characterized, obtain feature to be assessed, comprising:

According to the substar position for forming the convex closure, the position of centre of gravity of the convex closure is determined；

According to the position of centre of gravity and the location information of the receiving device, determine that the receiving device is defended with the positioning The distance feature of the substar center of gravity of star.

The distance relation feature includes the star of the receiving device Yu the position location satellite in one of the embodiments, The Distance entropy feature of lower point；

It is described that the satellite information is characterized, obtain feature to be assessed, comprising:

According to the location information of each position location satellite, the substar position of each position location satellite is determined；

In conjunction with the location information of the receiving device, determine the receiving device to each substar position it is basic away from From；

Based on each fundamental distance, determine that the Distance entropy of the substar of the receiving device and the position location satellite is special Sign.

In one of the embodiments, the feature to be assessed include the position location satellite asterism under convex closure area spy Sign；It is described that the satellite information is characterized, obtain feature to be assessed, comprising:

According to each substar position, the substar for forming convex closure is determined；

According to the substar position for forming the convex closure, the feature of substar convex closure area is determined.

It is described according to the substar position for forming the convex closure in one of the embodiments, determine that substar is convex The feature of envelope product, comprising:

To the substar and adjacent next substar for forming the convex closure, according to the cross of two substar positions Ordinate determines corresponding convex closure component area；

Each convex closure component area summation corresponding to the convex closure, obtains substar convex closure area；

The substar convex closure area is characterized, the feature of the substar convex closure area is obtained.

The feature to be assessed includes whether the position and speed of the position location satellite is consistent in one of the embodiments, Feature；

According to the position location satellite between the location information and described two preset times point of two preset time points Every duration, the versus speed of the position location satellite is determined；

The versus speed is compared with the satellite velocities parsed in the obtained satellite information, obtains position speed Spend consensus information；

The position and speed consensus information is characterized, obtain the position location satellite position and speed whether one The feature of cause.

The feature to be assessed includes the height corner characteristics, described fixed of the position location satellite in one of the embodiments, The feature of convex closure area under the whether consistent feature of position and speed of position satellite and the asterism of the position location satellite.

It is described in one of the embodiments, that the feature to be assessed is mapped, it obtains for the assessment to be evaluated The quality assessment result of position signal, including the feature to be assessed is inputted into trained extreme gradient lift scheme and is reflected It penetrates, obtains the quality assessment result for the positioning signal to be assessed；The training process packet of the extreme gradient lift scheme It includes:

Obtain training sample, the training sample includes training characteristics and annotation results, the training characteristics and it is described to The data structure for assessing feature is identical；

The training characteristics are inputted into the extreme gradient lift scheme, obtain training result；

According to the training result and the annotation results, the extreme gradient lift scheme is updated, until meeting terminates Update condition obtains the trained extreme gradient lift scheme.

A kind of location information processing unit, described device include:

Protocol data obtains module, for obtaining the standard Protocol Data for being directed to positioning signal to be assessed；

Protocol data parsing module obtains the standard Protocol Data for parsing to the standard Protocol Data The satellite information of carrying, the satellite information include the information for issuing the position location satellite of the positioning signal to be assessed；

It assesses characteristic determination module and obtains feature to be assessed for characterizing to the satellite information；

Signal quality assessment module is obtained for mapping the feature to be assessed for the positioning to be assessed The quality assessment result of signal.

A kind of computer equipment, including memory and processor, the memory are stored with computer program, the processing Device performs the steps of when executing the computer program

A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor It is performed the steps of when row

Above-mentioned method, device, computer equipment and storage medium obtain and are directed to positioning signal to be assessed Standard Protocol Data；The standard Protocol Data is parsed, the satellite information that the standard Protocol Data carries is obtained, The satellite information includes the information for issuing the position location satellite of the positioning signal to be assessed；Feature is carried out to the satellite information Change, obtains feature to be assessed；The feature to be assessed is mapped, obtains commenting for the quality of the positioning signal to be assessed Estimate result.Since the satellite information accuracy parsed based on mark protocol data is high, can reduce by satellite-signal The influence of intensity can also reduce the influence by positioning accuracy, without relying on network data.In this way, to believe based on satellite Breath obtains feature to be assessed, then maps feature to be assessed, and obtained quality assessment result is more accurate.It is thus possible to Improve the reliability of location information quality assessment result.

Detailed description of the invention

Fig. 1 is the applied environment figure schematic diagram of method in one embodiment；

Fig. 2 is the flow chart of the method for one embodiment；

Fig. 3 is an application scenario diagram of the method in a specific embodiment；

Fig. 4 is the structural block diagram of the location information processing unit in one embodiment；

Fig. 5 is the structural schematic diagram of computer equipment in one embodiment.

Specific embodiment

It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not For limiting the application.

Fig. 1 is the applied environment figure schematic diagram of method in one embodiment.User terminal 102 and service Device 104 is connected by network communication.Wherein, user terminal 102 can be bench device or mobile terminal, as desktop computer, Tablet computer, smart phone etc..Server 104 can be independent physical server, physical server cluster or virtual clothes Business device.

The standard Protocol Data for positioning signal to be assessed is stored on server 104.In one of the embodiments, Server 104 obtains the standard Protocol Data for being directed to positioning signal to be assessed；Standard Protocol Data is parsed, standard is obtained The satellite information that protocol data carries, satellite information includes the information for issuing the position location satellite of positioning signal to be assessed；To satellite Information is characterized, and feature to be assessed is obtained；Feature to be assessed is mapped, the matter for positioning signal to be assessed is obtained Measure assessment result.Quality assessment result is sent to use periodically or when receiving the request of user terminal 102 by server 104 Family terminal 102.

In another embodiment, server 104 is periodically or when receiving the request of user terminal 102, to user's end End 102 sends the standard Protocol Data for being directed to positioning signal to be assessed.User terminal 102 is obtained for positioning signal to be assessed Standard Protocol Data；Standard Protocol Data is parsed, the satellite information of standard Protocol Data carrying, satellite information packet are obtained Include the information for issuing the position location satellite of positioning signal to be assessed；Satellite information is characterized, feature to be assessed is obtained；It treats Assessment feature is mapped, and the quality assessment result for positioning signal to be assessed is obtained.

As shown in Fig. 2, in one embodiment, providing a kind of method.This method may operate in It executes in equipment, executing equipment can be the user terminal 102 or server 104 in Fig. 1.The method, The following steps are included:

S202 obtains the standard Protocol Data for being directed to positioning signal to be assessed.

It executes equipment and obtains the standard Protocol Data for being directed to positioning signal to be assessed.The positioning signal to be assessed refers to, needs Carry out the positioning signal of quality evaluation.Positioning signal may include satellite positioning signal, such as GPS (Global Positioning System, global positioning system) positioning signal.

Standard Protocol Data refers to, to satellite information according to the data obtained after a standard agreement coding encapsulation. That is, the standard Protocol Data carries satellite information.The standard agreement can be NMEA (National Marine Electronics Association, the reticle that the sea that National Marine Electronics association formulates is formulated with electronic equipment Formula).Such as, which can be the uniform protocol for GPS navigation equipment.Specifically such as, RTCM (Radio Technical Commission for Maritime services, the offshore service radio technology committee) standard agreement.

S204 parses standard Protocol Data, obtains the satellite information of standard Protocol Data carrying.

Execute equipment can format standard according to standard Protocol Data, packaged type, standard Protocol Data is solved Analysis obtains the satellite information of standard Protocol Data carrying.

Satellite information includes the information for issuing the position location satellite of positioning signal to be assessed.Such as, the information of position location satellite can be with Location information, velocity information, height angle information, substar information including position location satellite etc..

Satellite information can also include the positional relationship information of receiving device and position location satellite substar, receiving device and determine The substar distance relation information of position satellite.Wherein, whether positional relationship information may include receiving device in position location satellite Information under asterism in convex closure.Distance relation information may include: receiving device at a distance from the substar center of gravity of position location satellite Information, receiving device entropy information etc. at a distance from the substar of position location satellite.

S206 characterizes satellite information, obtains feature to be assessed.

Satellite information can be handled to obtain information to be assessed by executing equipment；Feature is carried out to information to be assessed again Change, obtains feature to be assessed.Information to be assessed refers to the data for carrying out considering when quality evaluation as direct acting factor Information；Feature to be assessed is the feature representation of information to be assessed.Information to be assessed may include substar convex closure area, position speed Degree consensus information, satellite altitude angle information, receiving device whether information under the asterism of position location satellite in convex closure, receive and set At a distance from the substar of the standby range information with the substar center of gravity of position location satellite, receiving device and position location satellite in entropy information At least one of.Accordingly, feature to be assessed may include the feature of substar convex closure area, position and speed consistency feature, defend Elevation corner characteristics, receiving device whether feature under the asterism of position location satellite in convex closure, receiving device and position location satellite At least one of in the distance feature of substar center of gravity, the Distance entropy feature of the substar of receiving device and position location satellite.

Satellite information is handled to obtain information to be assessed, may include according to the location information of each position location satellite, really The substar position of fixed each position location satellite；According to each substar position, the substar for forming convex closure is determined；According to formation convex closure Substar position determines substar convex closure area.

Satellite information is handled to obtain information to be assessed, also may include according to position location satellite in two preset times The location information and the interval duration at two time points of point, determine the versus speed of position location satellite；By versus speed and parsing The obtained satellite velocities in satellite information compare, and obtain position and speed consensus information.

Satellite information is handled to obtain information to be assessed, can also include the elevation of satellite obtained in satellite information Information, using the satellite altitude angle information as one in information to be assessed.

Satellite information is handled to obtain information to be assessed, can also include the substar position according to each position location satellite It sets, determines the substar for forming convex closure；The two neighboring substar for forming convex closure is connected with the position of receiving device respectively, shape At one-component angle；Each component angle summation corresponding to convex closure, obtain angle and；According to angle and determine that receiving device is The no information under the asterism of position location satellite in convex closure.

Satellite information is handled to obtain information to be assessed, can also include the substar position according to each position location satellite It sets, determines the substar for forming convex closure；According to the substar position for forming convex closure, the position of centre of gravity of convex closure is determined；According to center of gravity The location information of position and receiving device determines the range information of the substar center of gravity of receiving device and position location satellite.

Satellite information is handled to obtain information to be assessed, can also include according to the location information of each position location satellite, Determine the substar position of each position location satellite；In conjunction with the location information of receiving device, determine receiving device to each substar position Fundamental distance；Based on each fundamental distance, receiving device entropy information at a distance from the substar of position location satellite is determined.

S208 maps feature to be assessed, obtains the quality assessment result for positioning signal to be assessed.

Execute equipment can use trained Evaluation Model on Quality, feature to be assessed is mapped, obtain for Assess the quality assessment result of positioning signal.Evaluation Model on Quality can be neural network model, XGBoost (eXtreme Gradient Boosting, extreme gradient are promoted) model, gradient lift scheme etc..

The training process of Evaluation Model on Quality includes: acquisition training sample, and training sample includes training characteristics and mark knot Fruit, training characteristics are identical as the data structure of feature to be assessed；By training characteristics input quality assessment models, obtain training knot Fruit；According to training result and annotation results, Evaluation Model on Quality is updated, obtains trained matter until meeting and terminating update condition Measure assessment models.

Quality is obtained compared to based on satellite signal strength, DOP (Dilution of Precision, precision degree of strength) Assessment result, above-mentioned position information processing method based on the satellite information that mark protocol data parses, then carry out quality and comment Estimate, obtains quality assessment result.It not will receive the influence of satellite signal strength, will not be influenced by positioning accuracy, and not Agreement can be modified by manufacturer, have uniformity, use scope is extensive, strong applicability.

In such a way that net mate carries out quality evaluation, lost in the case where depending on road net data, road net data to lack Effect, and need to call road net data, model copy degree is high.Therefore, compared to network match carry out quality evaluation by way of, Above-mentioned position information processing method, without relying on network data, high reliablity.

Above-mentioned method obtains the standard Protocol Data for being directed to positioning signal to be assessed；To standard agreement Data are parsed, and obtain the satellite information of standard Protocol Data carrying, satellite information includes issuing positioning signal to be assessed The information of position location satellite；Satellite information is characterized, feature to be assessed is obtained；Feature to be assessed is mapped, is obtained For the quality assessment result of positioning signal to be assessed.Due to the satellite information accuracy parsed based on mark protocol data It is high, the influence by satellite signal strength can be reduced, the influence by positioning accuracy can also be reduced, without relying on network Data.In this way, to obtain feature to be assessed based on satellite information, then feature to be assessed is mapped, obtained quality is commented It is more accurate to estimate result.It is thus possible to improve the reliability of location information quality assessment result.

In order to improve the reliability of location information quality assessment result while reducing satellite signal strength influences.In In one embodiment, it can also be marked based on above-mentioned method when being parsed to standard Protocol Data The satellite signal strength that quasi- protocol data carries.The step of characterizing to satellite information, obtaining feature to be assessed includes, right Satellite information is characterized, and the first feature to be assessed is obtained；The quantity of first feature to be assessed is at least 1；To satellite-signal Intensity is characterized, and the second feature to be assessed is obtained；First feature to be assessed and the second feature to be assessed are merged, obtained To feature to be assessed.Wherein, the mode of fusion can be splicing fusion, can also be with Weighted Fusion.Positioning based on the present embodiment Information processing method on the basis of satellite signal strength, while also increasing the use of satellite information, reduces to road network etc. The reliability of location information quality assessment result can be improved in the dependence of auxiliary information.Method, Ke Yiying In the locating module for using GPS device and Internet map.

Satellite information further includes that position location satellite is set with the reception for receiving positioning signal to be assessed in one of the embodiments, Standby information；Feature to be assessed includes the linked character based on receiving device and position location satellite substar.

Wherein, receiving device refers to the equipment for receiving the positioning signal to be assessed that position location satellite is sent, and can be such as reception Machine.In the present embodiment, feature to be assessed includes the linked character based on receiving device and position location satellite substar.The association Feature may include the positional relationship feature of receiving device and position location satellite substar and the star of receiving device and position location satellite At least one of in lower distance relation feature.Wherein, positional relationship feature include receiving device whether position location satellite star Feature in the lower convex closure of point；Distance relation feature include the substar center of gravity of receiving device and position location satellite distance feature, with At least one of and in the Distance entropy feature of the substar of receiving device and position location satellite.

In the present embodiment, the feature to be assessed for carrying out quality evaluation has been additionally contemplates that position location satellite and has received assessment to be evaluated The information of the receiving device of position signal.On the one hand, these information not will receive the influence of satellite signal strength, not will receive positioning The influence of precision, without relying on network data, it is ensured that the accuracy and reliability of quality assessment result.On the other hand, In It, can in the information for combining position location satellite and the receiving device of reception positioning signal to be assessed on the basis of the information of position location satellite To further increase the accuracy and reliability of quality assessment result.

In one of the embodiments, positional relationship feature include receiving device whether under the asterism of position location satellite convex closure In feature.Satellite information is characterized, feature to be assessed is obtained, comprising: according to the substar position of each position location satellite, Determine the substar for forming convex closure；The two neighboring substar for forming convex closure is connected with the position of receiving device respectively, is formed One-component angle；Each component angle summation corresponding to convex closure, obtain angle and；According to angle and whether determine receiving device Feature under the asterism of position location satellite in convex closure.

Convex closure refers to the convex polygon that just may include all substars.It is formed under the star of the convex polygon respectively pinpointed Point, for the substar for forming convex closure.In the present embodiment, determine whether receiving device is defended in positioning by angle and diagnostic method Under the asterism of star in convex closure.Specifically according to angle and whether can be equal to 360 degree, to determine receiving device whether in position location satellite Asterism under in convex closure.Wherein, when angle and when equal to 360 degree, determine receiving device under the asterism of position location satellite in convex closure； When angle and when not equal to 360 degree, determine receiving device not under the asterism of position location satellite in convex closure.Determined based on the present embodiment Position information processing method, can efficiently and accurately determine receiving device whether the feature under the asterism of position location satellite in convex closure, It is thus possible to further increase the accuracy and reliability of location information quality assessment result.

It is to be appreciated that in other embodiments, determine receiving device whether under the asterism of position location satellite in convex closure Mode can also be area and diagnostic method, injection collimation method etc..Specifically such as, area and diagnostic method, it can be determined that receiving device and each Triangle area composed by each side of convex closure and the area for whether being equal to the convex closure, determine that receiving device is positioning if equal Under the asterism of satellite in convex closure；If unequal, determine receiving device not under the asterism of position location satellite in convex closure.

In one of the embodiments, distance relation feature include the substar center of gravity of receiving device and position location satellite away from From feature；Satellite information is characterized, feature to be assessed is obtained, comprising: according to the substar position of each position location satellite, really It is shaped as the substar of convex closure；According to the substar position for forming convex closure, the position of centre of gravity of convex closure is determined；According to position of centre of gravity and The location information of receiving device determines the distance feature of the substar center of gravity of receiving device and position location satellite.

Convex closure refers to the convex polygon that just may include all substars.It is formed under the star of the convex polygon respectively pinpointed Point, for the substar for forming convex closure.The position of centre of gravity of convex closure is the fixed point coordinate mean value of each substar for forming convex closure.If with (x_c,y_c) indicate convex closure center of gravity, thenWherein, x_nIndicate the substar of n-th of formation convex closure Abscissa；y_nIndicate the ordinate of the substar of n-th of formation convex closure；Wherein, the value of n is 1 natural number for arriving N, and N is to be formed The number of the substar of convex closure.

After determining the position of centre of gravity of convex closure, it can be led to according to the position of centre of gravity and the location information of receiving device Cross point-to-point transmission apart from calculation, determine receiving device at a distance from the substar center of gravity of position location satellite.It then will be determining Receiving device is characterized at a distance from the substar center of gravity of position location satellite, obtains distance feature.

Method based on the present embodiment, by receiving device at a distance from the substar center of gravity of position location satellite Feature is as distance relation feature, as a kind of feature to be assessed.Due to the substar center of gravity of the receiving device and position location satellite Distance feature, obtained based on mark protocol data the substar position, the receiving device position that parse, accuracy pole Height can lower the influence by satellite signal strength, can also reduce the influence by positioning accuracy, without relying on network number According to.In this way, the reliability of location information quality assessment result can be improved.

Distance relation feature includes the Distance entropy of the substar of receiving device and position location satellite in one of the embodiments, Feature；Satellite information is characterized, feature to be assessed is obtained, comprising: according to the location information of each position location satellite, is determined each The substar position of position location satellite；In conjunction with the location information of receiving device, determine receiving device to the basic of each substar position Distance；Based on each fundamental distance, the Distance entropy feature of the substar of receiving device and position location satellite is determined.

Distance relation feature includes feature of the receiving device at a distance from position location satellite substar, and the feature of the distance can be with The specially features such as Euclidean distance, Distance entropy, Hamming distances, Kaufman distance, Minkowski Distance.In the present embodiment, Distance relation is limited to the Distance entropy feature of the substar of receiving device and position location satellite.By Euclidean distance come in measurement system The distance between each unit, and the probability with distance than indicating individual appearance in system, thus obtained entropy, as Distance entropy. Wherein, unit refers to information unit.One information unit can be the distance of a substar to receiving device, divided by all Substar to receiving device distance sum.

Method based on the present embodiment, the Distance entropy of the substar of receiving device and position location satellite is special Sign is used as distance relation feature, as a kind of feature to be assessed.Since the receiving device is at a distance from the substar of position location satellite Entropy feature, location information, receiving device position based on the position location satellite that parses of mark protocol data obtain, accuracy It is high, the influence by satellite signal strength can be reduced, the influence by positioning accuracy can also be reduced, without relying on network Data.In this way, the reliability of location information quality assessment result can be improved.

In one of the embodiments, feature to be assessed include position location satellite asterism under convex closure area feature；To defending Star information is characterized, and feature to be assessed is obtained, comprising: according to the location information of each position location satellite, determines each position location satellite Substar position；According to each substar position, the substar for forming convex closure is determined；According to formed convex closure substar position, Determine the feature of substar convex closure area.

Convex closure refers to the convex polygon that just may include all substars.It is formed under the star of the convex polygon respectively pinpointed Point, for the substar for forming convex closure.Star can be determined using Andrew (Andrew) algorithm or Melkman (Mei Kaman) algorithm Lower convex closure area, then it is characterized, obtain the feature of substar convex closure area.Further, according to formation convex closure Substar position, the step of determining the feature of substar convex closure area may include: according to the substar position for forming convex closure It sets, determines substar convex closure area；With SNR (S-Noise Ratio, signal-to-noise ratio) value of every satellite as the effect of radius factor Substar convex closure area is weighted, the result obtained after weighting is characterized, obtains substar convex closure area.

In the present embodiment, using the feature of the convex closure area under the asterism of position location satellite as a kind of feature to be assessed.It should The feature of convex closure area under the asterism of position location satellite is obtained based on the location information for marking the position location satellite that protocol data parses It arriving, accuracy is high, can reduce the influence by satellite signal strength, the influence by positioning accuracy can also be reduced, Without relying on network data.In this way, the reliability of location information quality assessment result can be improved.

Further, according to the substar position for forming convex closure, the feature of substar convex closure area is determined, comprising: to shape It is determined corresponding convex at the substar and adjacent next substar of convex closure according to the transverse and longitudinal coordinate of two substar positions Packet component area；Each convex closure component area summation corresponding to convex closure, obtains substar convex closure area；To substar convex closure area It is characterized, obtains the feature of substar convex closure area.

In the present embodiment, to the substar and adjacent next substar for forming convex closure, according to two substar positions The transverse and longitudinal coordinate set determines corresponding convex closure component area.Such as, a convex closure component area can be expressed as Si=0.5* (x_iy_i+1-x_i+1y_i), wherein x_iIndicate the abscissa of the substar, y_iIndicate the ordinate of the substar, x_i+1Indicate next star The abscissa of lower point, y_i+1Indicate the ordinate of next substar.Each convex closure component area summation corresponding to convex closure, obtains star Lower convex closure area, can be expressed as

In this way, substar convex closure area can accurately and rapidly be determined, it is thus possible to further increase location information matter Measure the reliability of assessment result.

Feature to be assessed includes the whether consistent feature of position and speed of position location satellite in one of the embodiments,； Satellite information is characterized, feature to be assessed is obtained, comprising: is believed according to position location satellite in the position of two preset time points The interval duration of breath and two preset time points, determines the versus speed of position location satellite；Versus speed and parsing are obtained Satellite velocities in satellite information compare, and obtain position and speed consensus information；Position rate uniformity information is carried out It characterizes, obtains the whether consistent feature of position and speed of position location satellite.

In the present embodiment, by the whether consistent feature of the position and speed of position location satellite, as a kind of feature to be assessed. In some embodiments, the speed between two positions can be obtained by calculation, it then will be in the speed and satellite information Speed compares, and determines position and speed consensus information.In the present embodiment, the speed between two positions being calculated Degree, referred to as versus speed.Calculation is according to position location satellite in the location information of two preset time points and this two The interval duration of preset time point, determines the versus speed of position location satellite.Specifically such as, two positions can be chosen, according to this two The location information of a position determines the distance of two positions, according to the temporal information of the two positions, determines the two positions It is spaced duration, then with the distance of the two positions divided by interval duration, so that it may obtain versus speed.

Method based on the present embodiment, due to the position location satellite parsed based on mark protocol data Location information, temporal information and velocity information, obtain the whether consistent feature of position and speed of position location satellite, can reduce It is influenced by satellite signal strength, the influence by positioning accuracy can also be reduced, without relying on network data.In this way, can To improve the reliability of location information quality assessment result.

Feature to be assessed includes the position of the height corner characteristics of position location satellite, position location satellite in one of the embodiments, With the feature of convex closure area under the asterism of the whether consistent feature of speed and position location satellite.

Wherein, the height corner characteristics of position location satellite, can be to the height angle information progress spy of position location satellite in satellite information Signization and obtain.The whether consistent feature of the position and speed of position location satellite can be calculated by the information in satellite information Versus speed, then the velocity information in the versus speed and satellite information is compared, obtain position and the speed of position location satellite Degree whether consistent information, finally characterized to obtain.The feature of convex closure area under the asterism of position location satellite can be based on defending Star information be calculated the information of convex closure area under the asterism of position location satellite, is finally characterized to obtain.

Method based on the present embodiment, the elevation angle due to being obtained position location satellite based on satellite information are believed The information of breath, the whether consistent feature of position and speed and substar convex closure area, and then obtain corresponding feature.In this way, The influence by satellite signal strength can be reduced, the influence by positioning accuracy can also be reduced, without relying on network data. In this way, the reliability of location information quality assessment result can be improved.

Feature to be assessed is mapped in one of the embodiments, obtains the quality for positioning signal to be assessed Assessment result, including feature to be assessed is inputted into trained extreme gradient lift scheme and is mapped, it obtains for be assessed The quality assessment result of positioning signal；The training process of extreme gradient lift scheme includes: acquisition training sample, training sample packet Training characteristics and annotation results are included, training characteristics are identical as the data structure of feature to be assessed；Training characteristics input quality is commented Estimate model, obtains training result；According to training result and annotation results, extreme gradient lift scheme is updated, until meeting terminates Update condition obtains trained extreme gradient lift scheme.

In the present embodiment, it is based on extreme gradient lift scheme, quality evaluation is carried out to positioning signal to be assessed, obtains matter Measure assessment result.The scale of the gradient lift scheme can use evaluation quantity for 30, the gradient lift scheme that depth capacity is 10. Such as the scale of the gradient lift scheme can be expressed as n_estimators=30；Max_depth=10.Wherein, scale is assessed Show the quantity of the decision tree of the gradient lift scheme, which indicates the depth capacity of decision tree.

The training process of the extreme gradient lift scheme includes: acquisition training sample, training sample include training characteristics and Annotation results, training characteristics are identical as the data structure of feature to be assessed；By training characteristics input quality assessment models, instructed Practice result；According to training result and annotation results, extreme gradient lift scheme is updated, is instructed until meeting and terminating update condition The extreme gradient lift scheme perfected.Wherein terminate update condition, the objective function that can be extreme gradient lift scheme reaches It is optimal, it is also possible to that the number of iterations reaches pre-determined number or iteration time reaches preset time.

In conjunction with Fig. 3, in a specific embodiment, method, comprising:

Standard Protocol Data is parsed, the satellite information of standard Protocol Data carrying is obtained, satellite information includes hair The information of the position location satellite of positioning signal to be assessed and position location satellite and the receiving device of reception positioning signal to be assessed out Information；

Satellite information is characterized, feature to be assessed is obtained；Feature to be assessed includes whether receiving device is positioning The distance feature of the substar center of gravity of feature, receiving device and position location satellite under the asterism of satellite in convex closure, receiving device with It is the height corner characteristics of the feature of the satellite distributions index such as Distance entropy feature of the substar of position location satellite and position location satellite, fixed The feature of convex closure area under the whether consistent feature of position and speed of position satellite and the asterism of position location satellite；

Wherein, satellite information is characterized, obtains feature to be assessed, comprising:

The two neighboring substar for forming convex closure is connected with the position of receiving device respectively, forms one-component angle；

Each component angle summation corresponding to convex closure, obtain angle and；

According to angle and determine receiving device whether the feature under the asterism of position location satellite in convex closure；

According to the substar position for forming convex closure, the position of centre of gravity of convex closure is determined；

According to position of centre of gravity and the location information of receiving device, the substar center of gravity of receiving device and position location satellite is determined Distance feature；

In conjunction with the location information of receiving device, determine receiving device to each substar position fundamental distance；

Based on each fundamental distance, the Distance entropy feature of the substar of receiving device and position location satellite is determined；

To the substar and adjacent next substar for forming convex closure, according to the transverse and longitudinal coordinate of two substar positions, Determine corresponding convex closure component area；

Each convex closure component area summation corresponding to convex closure, obtains substar convex closure area；

Substar convex closure area is characterized, the feature of substar convex closure area is obtained；

According to position location satellite in the location information of two preset time points and the interval duration of two preset time points, Determine the versus speed of position location satellite；

Versus speed is compared with the satellite velocities parsed in obtained satellite information, obtains position and speed consistency Information；

Position rate uniformity information is characterized, the whether consistent spy of position and speed of position location satellite is obtained Sign；

Feature to be assessed is inputted trained extreme gradient lift scheme to map, obtains believing for positioning to be assessed Number quality assessment result.

It should be understood that although each step in the flow chart of Fig. 2 is successively shown according to the instruction of arrow, this A little steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly state otherwise herein, these steps It executes there is no the limitation of stringent sequence, these steps can execute in other order.Moreover, at least part in Fig. 2 Step may include that perhaps these sub-steps of multiple stages or stage are executed in synchronization to multiple sub-steps It completes, but can execute at different times, the execution sequence in these sub-steps or stage, which is also not necessarily, successively to be carried out, But it can be executed in turn or alternately at least part of the sub-step or stage of other steps or other steps.

In one embodiment, as shown in figure 4, providing a kind of positioning corresponding with above-mentioned method Information processing unit, comprising:

Protocol data obtains module 402, for obtaining the standard Protocol Data for being directed to positioning signal to be assessed；

Protocol data parsing module 404 obtains the standard agreement number for parsing to the standard Protocol Data According to the satellite information of carrying, the satellite information includes the information for issuing the position location satellite of the positioning signal to be assessed；

It assesses characteristic determination module 406 and obtains feature to be assessed for characterizing to the satellite information；

Signal quality assessment module 408 is obtained for mapping the feature to be assessed for the assessment to be evaluated The quality assessment result of position signal.

Quality is obtained compared to based on satellite signal strength, DOP (Dilution of Precision, precision degree of strength) Assessment result, above-mentioned position information processing unit based on the satellite information that mark protocol data parses, then carry out quality and comment Estimate, obtains quality assessment result.The influence by satellite signal strength can be reduced, the shadow by positioning accuracy can also be reduced It rings, and agreement will not be modified by manufacturer, have uniformity, use scope is extensive, strong applicability.

In such a way that net mate carries out quality evaluation, lost in the case where depending on road net data, road net data to lack Effect, and need to call road net data, model copy degree is high.Therefore, compared to network match carry out quality evaluation by way of, Above-mentioned position information processing unit, without relying on network data, high reliablity.

Above-mentioned location information processing unit obtains the standard Protocol Data for being directed to positioning signal to be assessed；To the standard Protocol data is parsed, and the satellite information that the standard Protocol Data carries is obtained, and the satellite information includes described in sending The information of the position location satellite of positioning signal to be assessed；The satellite information is characterized, feature to be assessed is obtained；To described Feature to be assessed is mapped, and the quality assessment result for the positioning signal to be assessed is obtained.Due to based on mark agreement The satellite information accuracy that data parse is high, can reduce the influence by satellite signal strength, can also reduce by To the influence of positioning accuracy, without relying on network data.In this way, to obtain feature to be assessed based on satellite information, then treat Assessment feature is mapped, and obtained quality assessment result is more accurate.It is thus possible to improve location information quality assessment result Reliability.

Whether the positional relationship feature includes the receiving device in the position location satellite in one of the embodiments, Asterism under feature in convex closure；Characteristic determination module is assessed, for the substar position according to each position location satellite, is determined Form the substar of convex closure；The two neighboring substar for forming the convex closure is connected with the position of the receiving device respectively, Form one-component angle；Each component angle summation corresponding to the convex closure, obtain angle and；According to the angle and Determine the receiving device whether the feature under the asterism of the position location satellite in convex closure.

The distance relation feature includes the star of the receiving device Yu the position location satellite in one of the embodiments, The distance feature of lower center of gravity；It assesses characteristic determination module and determines shape for the substar position according to each position location satellite At the substar of convex closure；According to the substar position for forming the convex closure, the position of centre of gravity of the convex closure is determined；According to institute The location information for stating position of centre of gravity and the receiving device determines the substar center of gravity of the receiving device Yu the position location satellite Distance feature.

It assesses characteristic determination module and determines each position location satellite for the location information according to each position location satellite Substar position；In conjunction with the location information of the receiving device, determine the receiving device to each substar position Fundamental distance；Based on each fundamental distance, determine that the Distance entropy of the substar of the receiving device and the position location satellite is special Sign.

In one of the embodiments, the feature to be assessed include the position location satellite asterism under convex closure area spy Sign；Characteristic determination module is assessed, for the location information according to each position location satellite, under the star for determining each position location satellite Point position；According to each substar position, the substar for forming convex closure is determined；According to the substar for forming the convex closure Position determines the feature of substar convex closure area.

The assessment characteristic determination module in one of the embodiments, is also used to the substar for forming the convex closure And adjacent next substar determines corresponding convex closure component area according to the transverse and longitudinal coordinate of two substar positions；

Assess characteristic determination module, for according to the position location satellite two preset time points location information, and The interval duration of described two preset time points, determines the versus speed of the position location satellite；By the versus speed and parsing The obtained satellite velocities in the satellite information compare, and obtain position and speed consensus information；To the position and speed Consensus information is characterized, and the whether consistent feature of position and speed of the position location satellite is obtained.

Described device further includes model training module in one of the embodiments,；

Signal quality assessment module, for carrying out the trained extreme gradient lift scheme of feature input to be assessed Mapping obtains the quality assessment result for the positioning signal to be assessed；

Model training module, for obtaining training sample, the training sample includes training characteristics and annotation results, described Training characteristics are identical as the data structure of the feature to be assessed；The training characteristics are inputted into the extreme gradient Lifting Modules Type obtains training result；According to the training result and the annotation results, the extreme gradient lift scheme is updated, until Meeting, which terminates update condition, obtains the trained extreme gradient lift scheme.

As shown in figure 5, in one embodiment, providing a kind of computer equipment, which can be service Device.The computer equipment includes processor, memory and the network interface connected by system bus.Wherein, which sets Standby processor is for providing calculating and control ability.The memory of the computer equipment includes non-volatile memory medium, interior Memory.The non-volatile memory medium is stored with operating system and computer program.The built-in storage is non-volatile memories The operation of operating system and computer program in medium provides environment.The network interface of the computer equipment is used for and outside Computer equipment passes through network connection communication.To realize a kind of location information processing side when the computer program is executed by processor Method.

It will be understood by those skilled in the art that structure shown in Fig. 5, only part relevant to application scheme is tied The block diagram of structure does not constitute the restriction for the computer equipment being applied thereon to application scheme, specific computer equipment It may include perhaps combining certain components or with different component layouts than more or fewer components as shown in the figure.

In one embodiment, a kind of computer equipment is provided.The computer equipment, including memory and processing Device, the memory are stored with computer program, and the processor realizes above-mentioned location information when executing the computer program The step of processing method.

The application provides a kind of computer equipment, including memory and processor, and the memory is stored with computer journey Sequence, the processor perform the steps of when executing the computer program

In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, it is described Following step is realized when computer program is executed by processor:

Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, To any reference of memory, storage, database or other media used in each embodiment provided herein, Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms, Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..

Each technical information of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment In each technical information it is all possible combination be all described, as long as however, the combination of these technical information be not present lance Shield all should be considered as described in this specification.

The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.

Claims

1. a kind of method, which comprises

The standard Protocol Data is parsed, the satellite information that the standard Protocol Data carries, the satellite letter are obtained Breath includes the information for issuing the position location satellite of the positioning signal to be assessed；

2. according to the method described in claim 1, it is characterized by:

The satellite information further includes the information of the receiving device of the position location satellite and the reception positioning signal to be assessed；

3. according to the method described in claim 2, it is characterized in that, the linked character includes at least one in following two :

4. according to the method described in claim 3, it is characterized in that, the positional relationship feature include the receiving device whether Feature under the asterism of the position location satellite in convex closure；It is described that the satellite information is characterized, obtain spy to be assessed Sign, comprising:

The two neighboring substar for forming the convex closure is connected with the position of the receiving device respectively, forms one-component folder Angle；

5. according to the method described in claim 3, it is characterized in that, the distance relation feature includes the receiving device and institute State the distance feature of the substar center of gravity of position location satellite；It is described that the satellite information is characterized, feature to be assessed is obtained, Include:

According to the position of centre of gravity and the location information of the receiving device, the receiving device and the position location satellite are determined The distance feature of substar center of gravity.

6. according to the method described in claim 3, it is characterized in that, the distance relation feature includes the receiving device and institute State the Distance entropy feature of the substar of position location satellite；

In conjunction with the location information of the receiving device, determine the receiving device to each substar position fundamental distance；

Based on each fundamental distance, the Distance entropy feature of the substar of the receiving device and the position location satellite is determined.

7. the method according to claim 1, wherein the feature to be assessed includes the asterism of the position location satellite The feature of lower convex closure area；It is described that the satellite information is characterized, obtain feature to be assessed, comprising:

8. the method according to the description of claim 7 is characterized in that described according to the substar position for forming the convex closure It sets, determines the feature of substar convex closure area, comprising:

To the substar and adjacent next substar for forming the convex closure, sat according to the transverse and longitudinal of two substar positions Mark, determines corresponding convex closure component area；

9. the method according to claim 1, wherein the feature to be assessed includes the position of the position location satellite With the whether consistent feature of speed；

According to the position location satellite two preset time points location information and described two preset times point interval when It is long, determine the versus speed of the position location satellite；

The versus speed is compared with the satellite velocities parsed in the obtained satellite information, obtains position and speed one Cause property information；

The position and speed consensus information is characterized, whether the position and speed for obtaining the position location satellite is consistent Feature.

10. the method according to claim 1, wherein the feature to be assessed includes the height of the position location satellite Convex closure under degree corner characteristics, the whether consistent feature of position and speed of the position location satellite and the asterism of the position location satellite The feature of area.

11. obtaining needle the method according to claim 1, wherein described map the feature to be assessed To the quality assessment result of the positioning signal to be assessed, including the feature to be assessed is inputted into trained extreme gradient and is mentioned Rising mould type is mapped, and the quality assessment result for the positioning signal to be assessed is obtained；The extreme gradient lift scheme Training process include:

Obtain training sample, the training sample includes training characteristics and annotation results, the training characteristics with it is described to be assessed The data structure of feature is identical；

According to the training result and the annotation results, the extreme gradient lift scheme is updated, until meeting terminates to update Condition obtains the trained extreme gradient lift scheme.

12. a kind of location information processing unit, described device include:

Protocol data parsing module obtains the standard Protocol Data and carries for parsing to the standard Protocol Data Satellite information, the satellite information includes the information for issuing the position location satellite of the positioning signal to be assessed；

Signal quality assessment module is obtained for mapping the feature to be assessed for the positioning signal to be assessed Quality assessment result.

13. device according to claim 12, which is characterized in that the satellite information further includes the position location satellite and connect Receive the information of the receiving device of the positioning signal to be assessed；

14. a kind of computer equipment, including memory and processor, the memory is stored with computer program, the processing The step of device realizes method described in claim 1-11 any one when executing the computer program.

15. a kind of computer readable storage medium, is stored thereon with computer program, the computer program is executed by processor The step of method described in Shi Shixian claim 1-11 any one.