阅读说明：本技术 一种无线信号定位的方法和装置 (Method and device for positioning wireless signal ) 是由 于毅欣 于 2020-11-02 设计创作，主要内容包括：一种无线信号定位的装置,其特征在于,包括：无线发射终端,定位终端。所述无线发射终端是带有相同时间的终端,带有无线网络能够发射无线电波或\和进行无线通讯。所述定位终端是能够接收和发送无线信号,解析无线信号的消息,计算自身当前坐标的终端。本发明提供一种无线信号定位的方法和装置,能够不要求定位终端的时间与无线信号发射终端的时间相同,而至少一定程度上降低要求各种各样的定位终端的时间都要和无线信号发射终端的技术难度。本发明的一个特点是所述定位终端是单纯的接收终端,不发射无线信号。(An apparatus for wireless signal location, comprising: wireless transmitting terminal, positioning terminal. The wireless transmitting terminals are terminals with the same time, and wireless networks are arranged to transmit radio waves or/and carry out wireless communication. The positioning terminal is a terminal capable of receiving and sending wireless signals, analyzing messages of the wireless signals and calculating the current coordinates of the positioning terminal. The invention provides a method and a device for positioning wireless signals, which can reduce the technical difficulty of time required for various positioning terminals and wireless signal transmitting terminals to at least a certain extent without requiring the time for positioning the terminals to be the same as the time for transmitting the wireless signals. One feature of the present invention is that the positioning terminal is a pure receiving terminal and does not transmit wireless signals.)

1. An apparatus for wireless signal location, comprising: a wireless transmitting terminal, a positioning terminal;

the wireless transmitting terminals are terminals with the same time and are provided with wireless networks which can transmit radio waves or/and carry out wireless communication;

the positioning terminal is a terminal capable of receiving wireless signals, analyzing the information of the wireless signals and calculating the current coordinates of the positioning terminal.

2. A method of wireless signal positioning, comprising:

deploying the wireless transmitting terminals, numbering each wireless transmitting terminal, and collecting positioning information or global positioning information of each wireless transmitting terminal;

the wireless transmitting terminal sends positioning auxiliary information once at intervals;

and after receiving the plurality of positioning auxiliary information, the positioning terminal calculates the coordinates of the positioning terminal according to the positioning auxiliary information sent by a plurality of different wireless transmitting terminals at the same time point.

3. The apparatus of claim 1, wherein the wireless transmitting terminals are deployed and each of the wireless transmitting terminals is numbered, and wherein collecting the positioning information or global positioning information of each of the wireless transmitting terminals further comprises:

the wireless transmitting terminals may be distinguished from each other by a unique identification or number;

the wireless transmitting terminal can be deployed at a fixed position when deployed;

and the storage medium of the wireless transmitting terminal stores the positioning information of the position of the wireless transmitting terminal.

Technical Field

The invention relates to the technical field of communication and positioning, in particular to a method and a device for positioning wireless signals.

Background

Conventional positioning methods often use a positioning terminal to perform time synchronization with a positioning signal transmitter or a wireless signal transmitter, and the time synchronization process may have a time error or, in some extreme cases, a significant time error, and the distance calculated based on the error time is in error, which sometimes causes a result obtained by a more accurate deduction process to have a larger error. The invention provides a method and a device for positioning wireless signals, which can reduce the technical difficulty of time required for various positioning terminals and wireless signal transmitting terminals to at least a certain extent without requiring the time for positioning the terminals to be the same as the time for transmitting the wireless signals. One feature of the present invention is that the positioning terminal is a pure receiving terminal and does not transmit wireless signals.

Disclosure of Invention

According to one aspect of the present disclosure, an apparatus for wireless signal positioning, comprises: wireless transmitting terminal, positioning terminal.

The wireless transmitting terminals are terminals with the same time, and wireless networks are arranged to transmit radio waves or/and carry out wireless communication.

The positioning terminal is a terminal capable of receiving and sending wireless signals, analyzing messages of the wireless signals and calculating the current coordinates of the positioning terminal.

Preferably, the positioning terminal is a receiving terminal.

Preferably, as an optional implementation manner, the wireless transmitting terminal may be a terminal that is set to the same time at the time of factory shipment, and the wireless transmitting terminal may be a device that operates based on the same time.

Preferably, the wireless transmitting terminal stores its own identification information or device number.

Preferably, the wireless transmitting terminal stores its own positioning information, which may include altitude.

Preferably, the wireless transmitting terminals are deployed in different places to work simultaneously.

Preferably, as an alternative implementation, the wireless transmitting terminal may be balloon-mounted to the sky.

Preferably, as an optional implementation manner, the wireless transmitting terminal may be a base station.

According to one aspect of the disclosure, a method for wireless signal positioning is characterized by comprising:

deploying the wireless transmitting terminals, numbering each wireless transmitting terminal, and collecting positioning information or global positioning information of each wireless transmitting terminal;

the wireless transmitting terminal sends positioning auxiliary information once at intervals;

and after receiving the plurality of positioning auxiliary information, the positioning terminal calculates the coordinates of the positioning terminal according to the positioning auxiliary information sent by a plurality of different wireless transmitting terminals at the same time point.

Preferably, as an optional implementation, the positioning assistance information may include a device number (device identification information) of a wireless transmitting terminal that transmits the information, positioning information (which may include an altitude), a time when the information is transmitted, and check information of the message packet.

Further, the check information may be a Hash value or a data compression value of a part of the content in the message or a value obtained by some operation.

Further, the partial content may be a device number (device identification information) of the wireless transmitting terminal, positioning information (which may include an altitude) of the wireless transmitting terminal, and a time when the information is transmitted.

Preferably, the wireless transmitting terminal sends the positioning assistance information once at regular intervals.

Preferably, as an optional implementation manner, the time interval for the wireless transmitting terminal to transmit the positioning assistance information may be 1-20 seconds.

Preferably, the wireless transmitting terminals can be distinguished from each other by a unique identification or number.

Preferably, the wireless transmitting terminal may be deployed at a fixed location.

The positioning terminal receives the positioning auxiliary information sent at the same time point, and the number of the positioning auxiliary information can exceed a certain number, and then the positioning related calculation is started.

Further, the certain number may be one, two, or three.

Preferably, the positioning can be performed by the distance difference between the positioning terminal and a plurality of wireless transmitting terminals.

Preferably, as an alternative implementation manner, the same time of positioning assistance information transmitted by four wireless transmitting terminals can be screened out by the same sending time to obtain a result of sorting the distances between the positioning terminal and the four wireless transmitting terminals, and the distance difference between the results of sorting the four wireless transmitting terminals from far to near is obtained according to the local time difference of receiving the positioning assistance information transmitted by each wireless transmitting terminal, that is, the distance difference between the current positioning terminal and the corresponding wireless transmitting terminal is obtained by multiplying the time difference by the propagation speed of radio waves or wireless signals.

Furthermore, the positioning information corresponding to each wireless transmitting terminal can be obtained from the positioning auxiliary information transmitted by the four wireless transmitting terminals, so that according to the distance formula, four distance equations can be obtained, wherein the coordinates (X, Y, Z) of the current point and the distance between the current point and the wireless transmitting terminal with the shortest distance are unknowns (R), that is, the four equations solve the four variables.

Further, following the above method, more distance equations (distance equations based on the ranges neresta of the current positioning terminal and the nearest wireless transmitting terminal and the differences between the ranges of the current positioning terminal and other wireless transmitting terminals and neresta) can be obtained from the later received messages at the same time point, so as to be used for solving the coordinates or the coordinate difference value set.

Further, the coordinate difference set is a set of points used for calculating a tie coordinate as the current positioning coordinate.

Preferably, as an alternative implementation, the current coordinates may be determined by a wireless signal positioning method of multiple wireless signal sources.

Preferably, the list of used wireless transmitting terminals can be filtered.

Further, as an alternative embodiment, the calculation using the relevant information of several wireless transmitting terminals arranged in a straight line can be avoided.

Preferably, the calculated results can be checked or corrected using the location information and the distance difference of the fifth or sixth distant wireless transmitting terminal in the distance ranking in an attempt to solve the two widely separated results that occur in the case of fig. 2.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 schematically shows a layout, a top view, of a plurality of said wireless transmitting terminals and positioning terminals.

Fig. 2 is a schematic layout diagram, top view, of a plurality of said wireless transmitting terminals, a positioning terminal and a location satisfying another coordinate of the positioning terminal parameter equation.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Example 1

Step 1: a plurality of wireless transmitting terminals with the time lapse are deployed in different places, then east longitude and north latitude information and altitude information where each wireless transmitting terminal is located are measured to form positioning information, and then the positioning information and identification information (which can be numbers) of each wireless transmitting terminal are stored in a storage medium of each wireless transmitting terminal together, so that each wireless transmitting terminal can know the number and the positioning information of the wireless transmitting terminal.

Step 2: each wireless transmitting terminal sends positioning auxiliary information once every 5 seconds, and the information comprises the current time, the positioning information of the wireless transmitting terminal and the identification information of the wireless transmitting terminal.

And step 3: when the positioning terminal receives the information, the information is marked by using the local time of the positioning terminal, the data in the information is analyzed, the data with the same sending time is temporarily stored in an array, and the ordering is carried out according to the local time when the information is received. The difference between the received time of the positioning assistance information and the time of the first positioning assistance information is multiplied by the transmission speed of the wireless signal to obtain the distance difference, which is the distance difference relative to the distance between the first received wireless transmitting terminal in the positioning assistance information of the time period, for example, the distance between the nearest wireless transmitting terminal and the positioning terminal in the upper right corner in fig. 1 is taken as a parameter (R in step 4), and the distance difference between other wireless transmitting terminals and the positioning terminal is known, that is, the difference between the received time of the positioning assistance information of other wireless transmitting terminals is multiplied by the transmission speed of the wireless signal.

And 4, step 4: the positioning information of the positioning terminal is obtained by using the positioning information and the distance difference (or distance) of four groups of wireless transmitting terminals, wherein the distance between the positioning terminal and the nearest wireless transmitting terminal is assumed to be R, the distance difference between other wireless transmitting terminals and the nearest wireless transmitting terminal is known (the received time difference is multiplied by the transmission speed of a wireless signal), the positioning information of the positioning terminal is (X, Y, Z), four 3-dimensional distance equations and four unknowns, and the solution can be carried out. In order to avoid a large deviation of the solution, it may be first determined whether the positioning information of the four groups of wireless transmission terminals is on a straight line, and if so, the positioning information of the other four groups of wireless transmission terminals is selected to replace one to three wireless transmission terminals, until the situation of fig. 2 is avoided.

Further, as an alternative, more positioning information and distance differences of the wireless transmitting terminal can be introduced to correct or screen out the final correct result from the situation shown in fig. 2, so as to create more 3-dimensional distance equations by using the distance differences to solve more results, so that the check or difference value makes the result more accurate or verified.

The above is a specific embodiment of the present invention, but the scope of the present invention should not be limited thereto. Any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the appended claims.