CN110072189B - Method and device for determining floor where terminal equipment is located - Google Patents
Method and device for determining floor where terminal equipment is located Download PDFInfo
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- CN110072189B CN110072189B CN201910333213.9A CN201910333213A CN110072189B CN 110072189 B CN110072189 B CN 110072189B CN 201910333213 A CN201910333213 A CN 201910333213A CN 110072189 B CN110072189 B CN 110072189B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/024—Guidance services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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Abstract
The embodiment of the invention provides a method and a device for determining a floor where a terminal device is located. The method comprises the following steps: determining a first elevation value and a second elevation value of the terminal equipment at a first intelligent access node at a target moment based on a preset first elevation value calculation formula and target position information when the terminal equipment is in a line-of-sight environment; and determining the floor information of the terminal equipment at the target moment based on the first elevation value and the second elevation value. In the embodiment of the invention, under a 5G ultra-dense network, a plurality of intelligent access nodes with lower cost are deployed in an indoor environment, and when the terminal equipment is in a line-of-sight environment, the floor information of the terminal equipment at a target moment can be determined only by receiving a line-of-sight signal sent by the terminal equipment and a preset first elevation value calculation formula without an air pressure value and a temperature value of the positions of the terminal equipment and the intelligent access nodes, so that the accuracy of indoor positioning is improved.
Description
Technical Field
The invention relates to the technical field of positioning and navigation, in particular to a method and a device for determining a floor where a terminal device is located.
Background
With the continuous development of scientific technology, in an indoor environment, a positioning technology for determining the position of a mobile target person carrying terminal equipment is gradually mature.
At present, in an indoor environment, a method for positioning a position of a moving target person carrying a terminal device mainly includes an air pressure differential altimetry method. The specific process of determining the position of the moving target person by adopting the differential barometric height measurement method comprises the following steps: when a base station deployed in an indoor environment detects a line-of-sight signal sent by terminal equipment, the base station obtains an air pressure value and a temperature value of the position where a moving target person is located from the terminal equipment. And then, calculating to obtain the height of the position of the moving target person based on the obtained air pressure value and temperature value of the moving target person, the air pressure value of the base station, the temperature value of the base station and the height value of the base station.
In the prior art, the position of a moving target person is determined mainly according to an air pressure value and a temperature value, and the air pressure value and the temperature value of the positions of a base station and the moving target person in an indoor environment are easily influenced by external environments and other uncertain factors, so that the air pressure value and the temperature value at the same position are different at different moments, and finally, the accurate position of the moving target person cannot be determined accurately in real time, and the accuracy of indoor positioning is reduced.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for determining a floor where a terminal device is located so as to improve the accuracy of indoor positioning.
The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a method for determining a floor where a terminal device is located, where the method is applied to a first intelligent access node in a 5G ultra-dense network, where the 5G ultra-dense network includes multiple intelligent access nodes, and the method includes:
receiving a line-of-sight signal sent by the terminal equipment at a target moment when the terminal equipment is in a line-of-sight environment;
determining a wave arrival direction angle corresponding to the line-of-sight signal based on a preset wave arrival direction angle determination algorithm and the line-of-sight signal;
determining a first elevation value of the terminal equipment at a first intelligent access node at the target moment based on a preset first elevation value calculation formula and target position information;
acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment;
and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value.
Optionally, the preset first elevation value calculation formula may be:
h is the elevation value of the terminal equipment at the target moment, x, y and z are the three-dimensional position coordinate values of the intelligent antenna node, and x0And y0And theta is a two-dimensional position coordinate value of the terminal equipment, and theta is a wave arrival direction angle corresponding to the line-of-sight signal.
Optionally, the step of determining the floor information where the terminal device is located at the target time based on a preset floor height information table, the first height value, and the second height value may include:
calculating an average value of the summation of the first elevation value and the second elevation value, and taking the average value as a third elevation value of the terminal equipment at the target moment;
searching reference floor information corresponding to a third height value of the terminal equipment at the target time in the preset floor height information table, and determining the reference floor information as the floor information of the terminal equipment at the target time; and the preset floor height information table comprises a corresponding relation between the elevation value and the floor information.
Optionally, the method may further include:
when the terminal equipment is in a non-line-of-sight environment, acquiring a third height value and a preset air pressure value, which are obtained by the terminal equipment before the target moment and through recent calculation;
determining a fourth elevation value of the terminal device at the target moment based on a preset second elevation value calculation formula, the third elevation value and the preset air pressure value;
and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table and a fourth height value of the terminal equipment at the target moment.
Optionally, the preset second elevation value calculation formula may be:
Hcur＝pre+×logPcur/Ppre
wherein HcurIs the elevation value H of the terminal equipment at the target momentpreA third height value which is obtained by the terminal equipment before the target time and is calculated recently, K is a constant, PcurIs the air pressure value, P, of the terminal device at the target momentpreIs HpreCorresponding to the preset air pressure value at the moment.
In a second aspect, an embodiment of the present invention provides a device for determining a floor where a terminal device is located, where the device is applied to a first intelligent access node in a 5G ultra-dense network, where the 5G ultra-dense network includes a plurality of intelligent access nodes, and the device includes:
the system comprises a line-of-sight signal receiving module, a line-of-sight signal receiving module and a line-of-sight signal transmitting module, wherein the line-of-sight signal receiving module is used for receiving a line-of-sight signal transmitted by terminal equipment at a target moment when the terminal equipment is in a line-of-sight environment;
the arrival direction angle determining module is used for determining an arrival direction angle corresponding to the line-of-sight signal based on a preset arrival direction angle determining algorithm and the line-of-sight signal;
the first elevation value determining module is used for determining a first elevation value of the terminal equipment at a first intelligent access node at the target moment based on a preset first elevation value calculation formula and target position information;
the second elevation value determining module is used for acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment;
and the floor information determining module is used for determining the floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value.
Optionally, the preset first elevation value calculation formula may be:
h is the elevation value of the terminal equipment at the target moment, x, y and z are the three-dimensional position coordinate values of the intelligent antenna node, and x0And y0And theta is a two-dimensional position coordinate value of the terminal equipment, and theta is a wave arrival direction angle corresponding to the line-of-sight signal.
Optionally, the floor information determining module may include:
a third elevation value calculation unit, configured to calculate an average value of sums of the first elevation value and the second elevation value, and use the average value as a third elevation value of the terminal device at the target time;
the first floor information determining unit is used for searching reference floor information corresponding to a third height value of the terminal equipment at the target time in the preset floor height information table and determining the reference floor information as the floor information of the terminal equipment at the target time; and the preset floor height information table comprises a corresponding relation between the elevation value and the floor information.
Optionally, the apparatus may further include:
a fourth elevation value determining unit, configured to determine a fourth elevation value of the terminal device at the target time based on a preset second elevation value calculation formula, the third elevation value, and the preset air pressure value;
and the second floor information determining unit is used for determining the floor information of the terminal equipment at the target moment based on a preset floor height information table and a fourth height value of the terminal equipment at the target moment.
Optionally, the preset second elevation value calculation formula is:
Hcur＝Hpre+K×logPcur/Ppre
wherein HcurIs the elevation value H of the terminal equipment at the target momentpreBefore the target time for the terminal equipmentAnd a third height value calculated recently, K being a constant, PcurIs the air pressure value, P, of the terminal device at the target momentpreIs HpreCorresponding to the preset air pressure value at the moment.
In a third aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;
a memory for storing a computer program;
the processor is used for realizing the following method steps when executing the program stored in the memory:
receiving a line-of-sight signal sent by the terminal equipment at a target moment when the terminal equipment is in a line-of-sight environment;
determining a wave arrival direction angle corresponding to the line-of-sight signal based on a preset wave arrival direction angle determination algorithm and the line-of-sight signal;
determining a first elevation value of the terminal equipment at a first intelligent access node at the target moment based on a preset first elevation value calculation formula and target position information;
acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment;
and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method for determining a floor where any terminal device is located are implemented.
In a fifth aspect, an embodiment of the present invention further provides a computer program product containing instructions, which when run on a computer, causes the computer to execute any of the above methods for determining a floor on which a terminal device is located.
The embodiment of the invention provides a method and a device for determining a floor where a terminal device is located, wherein when the terminal device is in a line-of-sight environment, a line-of-sight signal sent by the terminal device at a target moment is received; determining a wave arrival direction angle corresponding to a line-of-sight signal based on a preset wave arrival direction angle determination algorithm and the line-of-sight signal; determining a first elevation value of the terminal equipment at a first intelligent access node at a target moment based on a preset first elevation value calculation formula and target position information; acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment; and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value. In the embodiment of the invention, under a 5G ultra-dense network, a plurality of intelligent access nodes with lower cost are deployed in an indoor environment, and when the terminal equipment is in a line-of-sight environment, the floor information of the terminal equipment at a target moment can be determined only by receiving a line-of-sight signal sent by the terminal equipment and a preset first elevation value calculation formula without an air pressure value and a temperature value of the positions of the terminal equipment and the intelligent access nodes, so that the accuracy of indoor positioning is improved.
Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for determining a floor where a terminal device is located according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another method for determining a floor where a terminal device is located according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another device for determining a floor where a terminal device is located according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to improve the accuracy of indoor positioning, embodiments of the present invention provide a method and an apparatus for determining a floor where a terminal device is located, which are described in detail below.
The embodiment of the invention provides a method for determining a floor where a terminal device is located, which can be applied to a first intelligent access node in a 5G super-dense network, wherein the 5G super-dense network can comprise a plurality of intelligent access nodes. The intelligent access node can receive the line-of-sight signal sent by the terminal equipment in real time through the equipped intelligent antenna. And the intelligent access node can also have the functions of calculation, storage and the like, namely the intelligent access node can determine the floor information of the target mobile personnel carrying the terminal equipment at different moments according to the received sight distance signals, and can also receive and store the air pressure value of the terminal equipment at each moment, which is sent by the terminal equipment, in real time.
First, a method for determining a floor where a terminal device is located according to an embodiment of the present invention is described below.
Referring to fig. 1, an embodiment of the present invention provides a method for determining a floor where a terminal device is located, where the method is applied to a first intelligent access node in a 5G ultra-dense network, where the 5G ultra-dense network may include multiple intelligent access nodes.
The method comprises the following steps:
s101: and receiving the line-of-sight signal sent by the terminal equipment at the target moment when the terminal equipment is in the line-of-sight environment.
In practical applications, when the direct path between the terminal device and the smart access node is not blocked by an obstacle, the radio wave can propagate straight between the terminal device and the smart access node. At this time, both the terminal device and the smart access node may receive the signal transmitted by the other party, and therefore, such an environment is referred to as a line-of-sight environment. In the line-of-sight environment, the signal sent by the terminal equipment is a line-of-sight signal.
In implementation, the terminal device may send a line-of-sight signal to the intelligent access node according to a certain period, so that the terminal device may obtain the position information of the terminal device at different times in real time, thereby achieving the purpose of real-time positioning.
S102: and determining the wave arrival direction angle corresponding to the line-of-sight signal based on a preset wave arrival direction angle determination algorithm and the line-of-sight signal.
In implementation, after receiving the line-of-sight signal sent by the terminal device, the first intelligent access node may determine an algorithm according to a preset wave arrival direction angle, and use the line-of-sight signal as an input of the algorithm, thereby determining a wave arrival direction angle corresponding to the line-of-sight signal sent by the terminal device at a certain time.
The arrival direction angle is used for determining distance information and direction information of the terminal device by processing a radio wave signal (line-of-sight signal) transmitted by the terminal device.
In the embodiment of the present invention, the following formula may be adopted to calculate the arrival direction angle corresponding to the line-of-sight signal:
wherein, theta is the direction angle of the arrival wave corresponding to the sight distance signal, P is the spectral peak, argmin is the minimum mean function, aHIn (theta) signal subspaceThe direction of the vector is guided by the vector,
is a matrix of noise subspace feature vectors,
and a noise subspace formed by stretching the corresponding feature vector of the small noise feature value.
In this embodiment of the present invention, after the spectral peak of the direction angle θ of the line of sight signal is determined by the formula (2), the direction angle of the wave arrival corresponding to the spectral peak may be determined according to a preset correspondence between the parameter range of the direction angle of the wave arrival and the spectral peak, and the direction angle of the wave arrival is used as the direction angle of the wave arrival corresponding to the line of sight signal sent by the terminal device received by the first intelligent access node at the target time in step S101.
S103: and determining a first elevation value of the terminal equipment at the first intelligent access node at the target moment based on a preset first elevation value calculation formula and the target position information.
In an embodiment of the present invention, the target location information may include two-dimensional location information (x) of the terminal device at the target time0，y0) And three-dimensional location information (x, y, z) of the first intelligent access node. The time of the floor information of the terminal device to be determined is referred to as target time.
In implementation, the first intelligent access node may use the acquired two-dimensional position information of the terminal device at the target time, the three-dimensional position information of the first intelligent access node, and the wave arrival direction angle corresponding to the line-of-sight signal determined in step S102 as input of a preset first elevation value calculation formula. And the output calculated by the formula is used as a first height value of the terminal equipment at the first intelligent access node at the target moment.
Optionally, the following formula may be adopted to calculate the first height value of the terminal device at the first intelligent access node at the target time:
h is the elevation value of the terminal equipment at the target moment, x, y and z are the three-dimensional position coordinate values of the intelligent antenna node, and x0And y0And theta is a two-dimensional position coordinate value of the terminal equipment, and theta is a wave arrival direction angle corresponding to the line-of-sight signal.
In addition, in this embodiment of the present invention, the first smart access node may receive, in step S101, the line-of-sight signal sent by the terminal device at the target time and acquire the target location information, or may acquire the target location information after step S101 and before step S102, which is not limited in this embodiment of the present invention.
S104: and acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment.
In implementation, thousands of intelligent access nodes with the same function are deployed in a 5G ultra-dense network. Since the terminal device transmits the line-of-sight signal in a broadcast manner, when the terminal device transmits the line-of-sight signal, each smart access node in the 5G ultra-dense network may receive the line-of-sight signal and perform the above steps S102 and S103. In order to reduce the calculation error of the first elevation value, in this embodiment of the present invention, after determining the first elevation value of the terminal device at the first intelligent access node at the target time in step S103, the first intelligent access node may send a second elevation value obtaining instruction to each other intelligent access node in the 5G super-dense network, and receive the second elevation value sent by each intelligent access node. The calculation error of the elevation value is reduced by calculating the average value of the summation of the elevation values of all intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment.
S105: and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value.
In the implementation, each intelligent access node in the 5G ultra-dense network is pre-stored with a floor height information table. The preset floor height information table may include a correspondence between the elevation value and the floor information.
Optionally, in an embodiment of the present invention, a specific processing manner for determining the floor information where the terminal device is located at the target time based on a preset floor height information table, the first height value, and the second height value is provided, and the specific processing manner may include the following steps:
calculating an average value of the summation of the first elevation value and the second elevation value, and taking the average value as a third elevation value of the terminal equipment at the target moment; and searching reference floor information corresponding to the third height value of the terminal equipment at the target time in a preset floor height information table, and determining the reference floor information as the floor information of the terminal equipment at the target time.
In implementation, the first intelligent access node may add the obtained second elevation value of each of other intelligent access nodes of the terminal device in the 5G ultra-dense network and the first elevation value of the first intelligent access node, and calculate an average value, and use the average value as a third elevation value of the terminal device at the target time. And searching reference floor information corresponding to the third height value in a preset floor height information table. The reference floor information may be a floor number, for example, 5F, 15, etc. Then, the first intelligent access node takes the reference floor information as the floor information of the terminal device at the target moment, namely, determines the specific position of the terminal device at the target moment.
The embodiment of the invention provides a method and a device for determining a floor where a terminal device is located, wherein when the terminal device is in a line-of-sight environment, a line-of-sight signal sent by the terminal device at a target moment is received; determining a wave arrival direction angle corresponding to a line-of-sight signal based on a preset wave arrival direction angle determination algorithm and the line-of-sight signal; determining a first elevation value of the terminal equipment at a first intelligent access node at a target moment based on a preset first elevation value calculation formula and target position information; acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment; and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value. In the embodiment of the invention, under a 5G ultra-dense network, a plurality of intelligent access nodes with lower cost are deployed in an indoor environment, and when the terminal equipment is in a line-of-sight environment, the floor information of the terminal equipment at a target moment can be determined only by receiving a line-of-sight signal sent by the terminal equipment and a preset first elevation value calculation formula without an air pressure value and a temperature value of the positions of the terminal equipment and the intelligent access nodes, so that the accuracy of indoor positioning is improved.
Optionally, in practical application, even if enough intelligent access nodes are deployed in a certain indoor environment, when a mobile person carrying the terminal device is in a state of going upstairs or downstairs in the indoor environment, at a certain time, the intelligent access node cannot receive the radio wave signal sent by the terminal device, so that the mobile person carrying the terminal device cannot be located indoors by using the method described in the steps S101 to S105. In view of the above problem, an embodiment of the present invention provides a processing method how to perform indoor positioning on a mobile person carrying a terminal device when the terminal device is in a non-line-of-sight environment based on the method described in steps S101 to S105.
As shown in fig. 2, when the terminal device is in a non-line-of-sight environment, the specific determination method applied to the floor where the terminal device is located in the 5G ultra-dense network provided by the embodiment of the present invention may include the following steps:
s201: and when the terminal equipment is in a non-line-of-sight environment, acquiring a third height value and a preset air pressure value which are obtained by the terminal equipment before the target moment and are calculated recently.
In this embodiment of the present invention, in order to facilitate determining the floor information where the terminal device is located when the terminal device is in a non-line-of-sight environment, in step S105, after determining that the terminal device is in a line-of-sight environment and the floor information where the terminal device is located at a certain time is determined each time, the first intelligent access node in this embodiment of the present invention may send an instruction to the terminal device to obtain the air pressure value at the location where the terminal device is located at the target time, and receive the air pressure value sent by the terminal device.
In implementation, when the terminal device is in a non-line-of-sight environment, the first intelligent access node may obtain a third altitude value and a preset air pressure value, which are obtained by the terminal device before and recently calculated by the target time. The third elevation value calculated by the terminal device before the target time and recently may be the third elevation value of the terminal device at a certain time closest to the target time, which is determined by the first intelligent access node through the steps S101 to S105, at a plurality of times before the target time. The preset air pressure value is the air pressure value of the position of the terminal equipment at the moment before the target moment and corresponding to the recently calculated third altitude value.
S202: and determining a fourth elevation value of the terminal equipment at the target moment based on a preset second elevation value calculation formula, the third elevation value and a preset air pressure value.
In implementation, the third elevation value and the preset air pressure value obtained in step S201 may be input as a preset second elevation value calculation formula, so as to determine a fourth elevation value of the terminal device at a certain time at a target time.
Optionally, the first intelligent access node may calculate the fourth elevation value by using the following formula:
Hcur＝Hpre+K×logPcur/Ppre
wherein HcurIs the elevation value H of the terminal equipment at the target momentpreA third height value which is obtained by the terminal equipment before the target time and is calculated recently, K is a constant, PcurIs the air pressure value, P, of the terminal device at the target momentpreIs HpreCorresponding to the preset air pressure value at the moment.
S203: and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table and the fourth height value of the terminal equipment at the target moment.
In practice, the determination of the floor information where the terminal device is located at the target time may be specifically performed in the manner described in step S105, and will not be described in detail here.
In the embodiment of the invention, on the basis of determining the information of the floor where the terminal equipment is located at the target moment when the terminal equipment is located in the line-of-sight environment, the auxiliary method for determining the information of the floor where the terminal equipment is located in the non-line-of-sight environment through the altitude value and the air pressure value which are obtained by calculating the terminal equipment before and recently at the target moment is provided, so that the position where the terminal equipment is located is determined in real time, namely the accuracy of indoor positioning is improved.
Based on the same technical concept, corresponding to the method embodiment shown in fig. 1, an embodiment of the present invention further provides a device for determining a floor where a terminal device is located, as shown in fig. 3, where the device is applied to a first intelligent access node in a 5G ultra-dense network, and the 5G ultra-dense network includes a plurality of intelligent access nodes, and the device includes:
a line-of-sight signal receiving module 301, configured to receive, when the terminal device is in a line-of-sight environment, a line-of-sight signal sent by the terminal device at a target time;
a wave arrival direction angle determining module 302, configured to determine a wave arrival direction angle corresponding to a line-of-sight signal based on a preset wave arrival direction angle determining algorithm and the line-of-sight signal;
a first elevation value determining module 303, configured to determine, based on a preset first elevation value calculation formula and target location information, a first elevation value of the terminal device at the first intelligent access node at a target time;
a second elevation value determining module 304, configured to obtain second elevation values of other intelligent access nodes of the terminal device in the 5G super-dense network at the target time;
and the floor information determining module 305 is configured to determine the floor information where the terminal device is located at the target time based on a preset floor height information table, the first height value and the second height value.
In the embodiment of the present invention, the preset first elevation value calculation formula may be:
wherein h isIs the elevation value of the terminal equipment at the target moment, x, y and z are the three-dimensional position coordinate values of the intelligent antenna node, x0And y0And theta is a two-dimensional position coordinate value of the terminal equipment, and theta is a wave arrival direction angle corresponding to the line-of-sight signal.
In this embodiment of the present invention, the floor information determining module may include:
the third elevation value calculation unit is used for calculating an average value of the summation of the first elevation value and the second elevation value, and taking the average value as a third elevation value of the terminal equipment at the target moment;
the first floor information determining unit is used for searching reference floor information corresponding to a third height value of the terminal equipment at the target time in a preset floor height information table and determining the reference floor information as the floor information of the terminal equipment at the target time; the preset floor height information table comprises a corresponding relation between the elevation value and the floor information.
In the embodiment of the present invention, the apparatus may further include:
the fourth elevation value determining unit is used for determining a fourth elevation value of the terminal equipment at the target moment based on a preset second elevation value calculation formula, the third elevation value and a preset air pressure value;
and the second floor information determining unit is used for determining the floor information of the terminal equipment at the target moment based on the preset floor height information table and the fourth height value of the terminal equipment at the target moment.
In the embodiment of the present invention, the preset calculation formula of the second elevation value is:
Hcur＝Hpre+K×logPcur/Ppre
wherein HcurIs the elevation value H of the terminal equipment at the target momentpreA third height value which is obtained by the terminal equipment before the target time and is calculated recently, K is a constant, PcurIs the air pressure value, P, of the terminal device at the target momentpreIs HpreCorresponding to the preset air pressure value at the moment.
For specific implementation and related explanation of each step of the method, reference may be made to the method embodiments shown in fig. 1 and fig. 2, which are not described herein again.
An embodiment of the present invention further provides an electronic device, as shown in fig. 4, including a processor 401, a communication interface 402, a memory 403, and a communication bus 404, where the processor 401, the communication interface 402, and the memory 403 complete mutual communication through the communication bus 404,
a memory 403 for storing a computer program;
the processor 401, when executing the program stored in the memory 403, implements the following steps:
receiving a line-of-sight signal sent by the terminal equipment at a target moment when the terminal equipment is in a line-of-sight environment;
determining a wave arrival direction angle corresponding to a line-of-sight signal based on a preset wave arrival direction angle determination algorithm and the line-of-sight signal;
determining a first elevation value of the terminal equipment at a first intelligent access node at a target moment based on a preset first elevation value calculation formula and target position information;
acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment;
and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value.
For specific implementation and related explanation of each step of the method, reference may be made to the method embodiments shown in fig. 1 and 2, which are not described herein again.
In addition, other implementation manners of the method implemented by the processor 401 executing the program stored in the memory 403 are the same as those mentioned in the foregoing method embodiment, and are not described herein again.
The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the electronic equipment and other equipment.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
In yet another embodiment of the present invention, a computer-readable storage medium is further provided, which stores instructions that, when executed on a computer, cause the computer to perform the method for determining a floor on which a terminal device is located according to any one of the above embodiments.
In a further embodiment provided by the present invention, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the method of determining the floor on which any of the terminal devices is located in the above embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A method for determining a floor where a terminal device is located is applied to a first intelligent access node in a 5G ultra-dense network, wherein the 5G ultra-dense network comprises a plurality of intelligent access nodes, and the method comprises the following steps:
receiving a line-of-sight signal sent by the terminal equipment at a target moment when the terminal equipment is in a line-of-sight environment;
determining a wave arrival direction angle corresponding to the line-of-sight signal based on a preset wave arrival direction angle determination algorithm and the line-of-sight signal;
determining a first elevation value of the terminal equipment at a first intelligent access node at the target moment based on a preset first elevation value calculation formula and target position information;
acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment;
determining floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value;
the second elevation value is obtained by calculating the preset first elevation value calculation formula, and the preset first elevation value calculation formula is as follows:
h is the elevation value of the terminal equipment at the target moment, x, y and z are the three-dimensional position coordinate values of the intelligent access node, and x0And y0Is a two-dimensional position coordinate value of the terminal equipment, and theta is a sight distanceThe corresponding direction angle of arrival of the signal.
2. The method according to claim 1, wherein the step of determining the floor information where the terminal device is located at the target time based on a preset floor height information table, the first elevation value and the second elevation value comprises:
calculating an average value of the summation of the first elevation value and the second elevation value, and taking the average value as a third elevation value of the terminal equipment at the target moment;
searching reference floor information corresponding to a third height value of the terminal equipment at the target time in the preset floor height information table, and determining the reference floor information as the floor information of the terminal equipment at the target time; and the preset floor height information table comprises a corresponding relation between the elevation value and the floor information.
3. The method of claim 2, further comprising:
when the terminal equipment is in a non-line-of-sight environment, acquiring a third height value and a preset air pressure value, which are obtained by the terminal equipment before the target moment and through recent calculation;
determining a fourth elevation value of the terminal device at the target moment based on a preset second elevation value calculation formula, the third elevation value and the preset air pressure value;
and determining the floor information of the terminal equipment at the target moment based on a preset floor height information table and a fourth height value of the terminal equipment at the target moment.
4. A method according to claim 3, wherein said predetermined second elevation value calculation formula is:
Hcur＝Hpre+K×log Pcur/Ppre
wherein HcurFor the height of the terminal device at the target momentEquation value, HpreA third height value which is obtained by the terminal equipment before the target time and is calculated recently, K is a constant, PcurIs the air pressure value, P, of the terminal device at the target momentpreIs HpreCorresponding to the preset air pressure value at the moment.
5. A device for determining a floor where a terminal device is located is applied to a first intelligent access node in a 5G ultra-dense network, wherein the 5G ultra-dense network comprises a plurality of intelligent access nodes, and the device comprises:
the system comprises a line-of-sight signal receiving module, a line-of-sight signal receiving module and a line-of-sight signal transmitting module, wherein the line-of-sight signal receiving module is used for receiving a line-of-sight signal transmitted by terminal equipment at a target moment when the terminal equipment is in a line-of-sight environment;
the arrival direction angle determining module is used for determining an arrival direction angle corresponding to the line-of-sight signal based on a preset arrival direction angle determining algorithm and the line-of-sight signal;
the first elevation value determining module is used for determining a first elevation value of the terminal equipment at a first intelligent access node at the target moment based on a preset first elevation value calculation formula and target position information;
the second elevation value determining module is used for acquiring second elevation values of other intelligent access nodes of the terminal equipment in the 5G ultra-dense network at the target moment;
the floor information determining module is used for determining floor information of the terminal equipment at the target moment based on a preset floor height information table, the first elevation value and the second elevation value;
the second elevation value is obtained by calculating the preset first elevation value calculation formula, and the preset first elevation value calculation formula is as follows:
h is the elevation value of the terminal equipment at the target moment, and x, y and z are the three-dimensional positions of the intelligent access nodesScalar value, x0And y0And theta is a two-dimensional position coordinate value of the terminal equipment, and theta is a wave arrival direction angle corresponding to the line-of-sight signal.
6. The apparatus of claim 5, wherein the floor information determination module comprises:
a third elevation value calculation unit, configured to calculate an average value of sums of the first elevation value and the second elevation value, and use the average value as a third elevation value of the terminal device at the target time;
the first floor information determining unit is used for searching reference floor information corresponding to a third height value of the terminal equipment at the target time in the preset floor height information table and determining the reference floor information as the floor information of the terminal equipment at the target time; and the preset floor height information table comprises a corresponding relation between the elevation value and the floor information.
7. The apparatus of claim 6, further comprising:
a fourth elevation value determining unit, configured to determine a fourth elevation value of the terminal device at the target time based on a preset second elevation value calculation formula, the third elevation value, and the preset air pressure value;
and the second floor information determining unit is used for determining the floor information of the terminal equipment at the target moment based on a preset floor height information table and a fourth height value of the terminal equipment at the target moment.
8. The apparatus according to claim 7, wherein the predetermined second elevation value calculation formula is:
Hcur＝Hpre+K×log Pcur/Ppre
wherein HcurIs the elevation value H of the terminal equipment at the target momentpreCalculated for the terminal device before and most recentlyA third height value, K being a constant, PcurIs the air pressure value, P, of the terminal device at the target momentpreIs HpreCorresponding to the preset air pressure value at the moment.
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| CN108317996A (en) * | 2015-08-27 | 2018-07-24 | 华为终端（东莞）有限公司 | A kind of determining floor method, relevant device and system |
| CN109239710A (en) * | 2018-08-31 | 2019-01-18 | 中国科学院电子学研究所 | Acquisition methods and device, the computer readable storage medium of radar elevation information |
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