CN117687013B - Security protection high-precision positioning method based on 5G - Google Patents
Security protection high-precision positioning method based on 5G Download PDFInfo
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Abstract
The invention provides a security protection high-precision positioning method based on 5G, in the method, a first positioning terminal can send a first sensing signal to a positioning detection area through a sense-through integrated technology, the first sensing signal can be received by a second positioning terminal positioned behind the positioning detection area, and correspondingly, the first positioning terminal can also receive a first echo signal of an object in the positioning detection area, which returns to the first sensing signal, so as to determine the position of the object in the positioning detection area, and accurately position a user in a matched manner under the condition of controlling networking, thereby improving the security protection effect.
Description
Technical Field
The invention relates to the field of communication, in particular to a security high-precision positioning method based on 5G.
Background
In security scenes, positioning and tracking of a target object or an object through a positioning technology is one of important technical means for realizing security. Along with the progress of technology, the positioning terminal for security protection gradually develops towards the direction of intellectualization and networking, and at present, the positioning terminal can realize networking, so that a plurality of positioning terminals can realize matched positioning through networking transmission. However, the positioning terminals of the networking cooperate to perform positioning, so that no solution exists at present, and the problem to be solved is solved.
Disclosure of Invention
The embodiment of the invention provides a security high-precision positioning method based on 5G, which is used for precisely positioning a user in a matched manner under the condition of controlling networking so as to improve security effect.
In order to achieve the above purpose, the invention adopts the following technical scheme:
in a first aspect, a security protection high-precision positioning method based on 5G is provided, and the method is applied to a first positioning terminal, and includes: the first positioning terminal sends a first sensing signal to a second positioning terminal in the plurality of positioning terminals, wherein a positioning detection area is positioned between the second positioning terminal and the first positioning terminal; the method comprises the steps that a first positioning terminal receives a first echo signal of a first sensing signal returned by an object in a positioned detection area; and the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal.
In one possible embodiment, the first sensor signal is carried by at least one first beam of the first positioning terminal, which can cover the positioning detection area.
Alternatively, the at least one first beam can completely cover one side area of the location detection area and the at least one first beam cannot cover the other side area of the location detection area.
Further, the method further comprises: and the first positioning terminal determines the positioning terminal closest to the positioning detection area from the plurality of positioning terminals as a second positioning terminal, and correspondingly, the first beam is a wide beam.
In one possible embodiment, the method further comprises: the first positioning terminal sends a second sensing signal to a third positioning terminal in the plurality of positioning terminals, wherein the positioning detection area is positioned between the third positioning terminal and the first positioning terminal, and the third positioning terminal and the second positioning terminal are positioned in the direction that the first positioning terminal points to the positioning detection area; the first positioning terminal receives a second echo signal of the object in the positioned detection area, which returns a second sensing signal.
Correspondingly, the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal, and the method comprises the following steps: and the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal and the second echo signal.
Optionally, the second sensing signal is carried by at least one second beam of the first positioning terminal, the at least one second beam being capable of covering the positioning detection zone.
Further, the at least one second beam can completely cover one side area of the location detection area, and the at least one second beam cannot cover the other side area of the location detection area.
Still further, the method further comprises: and the first positioning terminal determines the positioning terminal farthest from the positioning detection area from the plurality of positioning terminals as a third positioning terminal, and the second beam is a narrow beam correspondingly.
Further, the first positioning terminal determines a position of the object in the positioning detection area according to the first echo signal and the second echo signal, including: the first positioning terminal determines a first position of the object in the positioning detection area according to the difference between the sequence in the first echo signal and the sequence in the first sensing signal; the first positioning terminal determines a second position of the object in the positioning detection area according to the difference between the sequence in the second echo signal and the sequence in the second sensing signal; and the first positioning terminal performs weighted summation on the first position and the second position to obtain the position of the object in the positioning detection area, wherein the weight corresponding to the first position in the weighted summation process is smaller than the weight corresponding to the second position in the weighted summation process.
In a second aspect, a 5G-based security high-precision positioning system is provided, where the 5G-based security high-precision positioning system includes a first positioning terminal, and the 5G-based security high-precision positioning system is configured to: the first positioning terminal sends a first sensing signal to a second positioning terminal in the plurality of positioning terminals, wherein a positioning detection area is positioned between the second positioning terminal and the first positioning terminal; the method comprises the steps that a first positioning terminal receives a first echo signal of a first sensing signal returned by an object in a positioned detection area; and the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal.
In one possible embodiment, the first sensor signal is carried by at least one first beam of the first positioning terminal, which can cover the positioning detection area.
Alternatively, the at least one first beam can completely cover one side area of the location detection area and the at least one first beam cannot cover the other side area of the location detection area.
Further, the 5G-based security high-precision positioning system is configured to: and the first positioning terminal determines the positioning terminal closest to the positioning detection area from the plurality of positioning terminals as a second positioning terminal, and correspondingly, the first beam is a wide beam.
In one possible design, the 5G-based security high-precision positioning system is configured to: the first positioning terminal sends a second sensing signal to a third positioning terminal in the plurality of positioning terminals, wherein the positioning detection area is positioned between the third positioning terminal and the first positioning terminal, and the third positioning terminal and the second positioning terminal are positioned in the direction that the first positioning terminal points to the positioning detection area; the first positioning terminal receives a second echo signal of the object in the positioned detection area, which returns a second sensing signal.
Accordingly, the system is configured to: the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal, and comprises the following steps: and the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal and the second echo signal.
Optionally, the second sensing signal is carried by at least one second beam of the first positioning terminal, the at least one second beam being capable of covering the positioning detection zone.
Further, the at least one second beam can completely cover one side area of the location detection area, and the at least one second beam cannot cover the other side area of the location detection area.
Still further, the 5G-based security high-precision positioning system is configured to: and the first positioning terminal determines the positioning terminal farthest from the positioning detection area from the plurality of positioning terminals as a third positioning terminal, and the second beam is a narrow beam correspondingly.
Further, the 5G-based security high-precision positioning system is configured to: the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal and the second echo signal, and comprises the following steps: the first positioning terminal determines a first position of the object in the positioning detection area according to the difference between the sequence in the first echo signal and the sequence in the first sensing signal; the first positioning terminal determines a second position of the object in the positioning detection area according to the difference between the sequence in the second echo signal and the sequence in the second sensing signal; and the first positioning terminal performs weighted summation on the first position and the second position to obtain the position of the object in the positioning detection area, wherein the weight corresponding to the first position in the weighted summation process is smaller than the weight corresponding to the second position in the weighted summation process.
In a third aspect, an electronic device is provided, comprising: a processor and a memory; the memory is for storing a computer program which, when executed by the processor, causes the electronic device to perform the method of the first aspect.
In one possible design, the electronic device according to the third aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be for use in the electronic device of the third aspect to communicate with other electronic devices.
In an embodiment of the present invention, the electronic device in the third aspect may be a terminal, or a chip (system) or other parts or components that may be disposed in the terminal, or a system including the terminal.
In a fourth aspect, there is provided a computer-readable storage medium comprising: computer programs or instructions; the computer program or instructions, when run on a computer, cause the computer to perform the method of the first aspect.
In summary, the method and the system have the following technical effects:
Through the general sense integration technology, the first positioning terminal can send a first sensing signal to the positioning detection area, the first sensing signal can be received by a second positioning terminal positioned behind the positioning detection area, and correspondingly, the first positioning terminal can also receive a first echo signal of an object in the positioning detection area, which returns the first sensing signal, so as to determine the position of the object in the positioning detection area, and accurately position a user in cooperation under the condition of controlling networking, thereby improving the security effect.
Drawings
FIG. 1 is a schematic diagram of a system architecture of a security high-precision positioning method based on 5G according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a security high-precision positioning method based on 5G according to an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention will be described below with reference to the accompanying drawings.
The technical scheme of the embodiment of the invention can be applied to various security high-precision positioning method systems based on 5G, such as a wireless network (Wi-Fi) system, a security high-precision positioning method system based on 5G for turning to any object (vehicle to everything, V2X), a security high-precision positioning method system based on 5G for equipment (device-todevie, D2D), a security high-precision positioning method system based on 5G for car networking, a security high-precision positioning method system based on 5G for fourth generation (4th generation,4G) mobile, such as a security high-precision positioning method system based on 5G for long-term evolution (long term evolution, LTE) system, global interconnection microwave access (worldwide interoperability for microwave access, wiMAX), a security high-precision positioning method system based on 5G for fifth generation (5th generation,5G) such as a new air interface (new radio, NR) system, a future security high-precision positioning method system based on 5G, and the like.
In the embodiment of the invention, the indication can comprise direct indication and indirect indication, and can also comprise explicit indication and implicit indication. In the specific implementation process, the manner of indicating the information to be indicated is various, for example, but not limited to, the information to be indicated may be directly indicated, such as the information to be indicated itself or an index of the information to be indicated. The information to be indicated can also be indicated indirectly by indicating other information, wherein the other information and the information to be indicated have an association relation. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of the specific information may also be achieved by means of a pre-agreed (e.g., protocol-specified) arrangement sequence of the respective information, thereby reducing the indication overhead to some extent. And meanwhile, the universal part of each information can be identified and indicated uniformly, so that the indication cost caused by independently indicating the same information is reduced.
The specific indication means may be any of various existing indication means, such as, but not limited to, the above indication means, various combinations thereof, and the like. Specific details of various indications may be referred to the prior art and are not described herein. As can be seen from the above, for example, when multiple pieces of information of the same type need to be indicated, different manners of indication of different pieces of information may occur. In a specific implementation process, a required indication mode can be selected according to specific needs, and the selected indication mode is not limited in the embodiment of the present invention, so that the indication mode according to the embodiment of the present invention is understood to cover various methods that can enable a party to be indicated to learn information to be indicated.
It should be understood that the information to be indicated may be sent together as a whole or may be sent separately in a plurality of sub-information, and the sending periods and/or sending timings of these sub-information may be the same or different. Specific transmission method the embodiment of the present invention is not limited. The transmission period and/or the transmission timing of the sub-information may be predefined, for example, predefined according to a protocol, or may be configured by the transmitting end device by transmitting configuration information to the receiving end device.
The "pre-defining" or "pre-configuring" may be implemented by pre-storing corresponding codes, tables, or other manners that may be used to indicate relevant information in the device, and the embodiments of the present invention are not limited to the specific implementation manner. Where "save" may refer to saving in one or more memories. The one or more memories may be provided separately or may be integrated in an encoder or decoder, processor, or electronic device. The one or more memories may also be provided separately as part of a decoder, processor, or electronic device. The type of memory may be any form of storage medium, and embodiments of the invention are not limited in this regard.
The "protocol" related in the embodiment of the present invention may refer to a protocol family in the communication field, a standard protocol similar to a frame structure of the protocol family, or a related protocol applied to a future security high-precision positioning method system based on 5G, which is not specifically limited in the embodiment of the present invention.
In the embodiment of the present invention, the descriptions of "when … …", "in … …", "if" and "if" all refer to that the device will perform corresponding processing under some objective condition, and are not limited in time, and do not require that the device must have a judging action when implementing, and do not mean that there are other limitations.
In the description of the embodiments of the present invention, unless otherwise indicated, "/" means that the objects associated in tandem are in a "or" relationship, e.g., A/B may represent A or B; the "and/or" in the embodiment of the present invention is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a alone, a and B together, and B alone, wherein A, B may be singular or plural. Also, in the description of the embodiments of the present invention, unless otherwise indicated, "plurality" means two or more than two. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural. In addition, in order to facilitate the clear description of the technical solution of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. Meanwhile, in the embodiments of the present invention, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion that may be readily understood.
The network architecture and the service scenario described in the embodiments of the present invention are for more clearly describing the technical solution of the embodiments of the present invention, and do not constitute a limitation on the technical solution provided by the embodiments of the present invention, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present invention is applicable to similar technical problems.
In order to facilitate understanding of the embodiment of the present invention, a security high-precision positioning method system based on 5G, which is applicable to the embodiment of the present invention, is first described in detail by taking the security high-precision positioning method system based on 5G shown in fig. 1 as an example. Fig. 3 is a schematic diagram of a architecture of a security high-precision positioning method system based on 5G, to which the security high-precision positioning method based on 5G according to an embodiment of the present invention is applicable.
As shown in fig. 1, the system of the security high-precision positioning method based on 5G may include: a plurality of terminal devices.
The terminal device may be a terminal having a wireless transceiving function or a chip system provided in the terminal. The terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user device. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), a vehicle-mounted terminal, an RSU with a terminal function, or the like. The terminal device of the present application may also be an in-vehicle module, an in-vehicle component, an in-vehicle chip, or an in-vehicle unit that is built in a vehicle as one or more components or units, and the vehicle may implement the method provided by the present application through the in-vehicle module, the in-vehicle component, the in-vehicle chip, or the in-vehicle unit. The communication between terminals may be a communication between terminals, which may also be referred to as side-by-side communication.
The terminal device is provided with a plurality of antenna panels (pannel), such as a first antenna panel and a second antenna panel. Each of the plurality of antenna panels may transmit or receive a plurality of beams in a different direction, referred to as the plurality of beams of the antenna panel.
A beam refers to a special transmitting or receiving effect with directivity formed by a transmitter or receiver of a network device or terminal through an antenna array, similar to a beam formed by a flashlight converging light into one direction. The signal is sent and received in a beam mode, so that the transmission data distance of the signal can be effectively improved. The beams used for communication between terminals may also be referred to as sidelobes.
The beam may be a wide beam, or a narrow beam, or other type of beam. The technique of forming the beam may be a beamforming technique or other technique. The beamforming technique may specifically be a digital beamforming technique, an analog beamforming technique, or a hybrid digital/analog beamforming technique, etc.
The beams generally correspond to resources. For example, when performing beam measurement, the network device measures different beams through different resources, the terminal feeds back the measured resource quality, and the network device can know the quality of the corresponding beam. During data transmission, the beam can also be indicated by its corresponding resource. For example, the network device indicates a transmission configuration indication-state (state) through a transmission configuration number (transmission configuration index, TCI) field in downlink control information (downlink control information, DCI), and the terminal determines a beam corresponding to the reference resource according to the reference resource included in the TCI-state.
In a communication protocol, the beams may be characterized specifically as digital beams, analog beams, spatial filters (spatial domain filter), spatial filters (SPATIAL FILTER), spatial parameters (SPATIAL PARAMETER), TCI-states, etc. The beam used to transmit the signal may be referred to as a transmit beam (transmission beam, or Tx beam), spatial transmit filter (spatial domain transmission filter), spatial transmit filter (spatial transmission filter), spatial transmit parameters (spatial domain transmission parameter), spatial transmit parameters (spatial transmission parameter), and the like. The beams used to receive the signals may be referred to as receive beams (or Rx beams), spatial receive filters (spatial domain reception filter), spatial receive filters (spatial reception filter), spatial receive parameters (spatial domain reception parameter), spatial receive parameters (spatial reception parameter), and the like.
It will be appreciated that embodiments of the application are described in terms of beams in general, but that beams may alternatively be understood as other equivalent concepts and are not limited to the concepts mentioned above.
It will be further appreciated that the embodiments of the present application are described by taking the example that the terminal device is a positioning terminal.
The sense of general integration technology, also called sensing, may refer to the determination of information of the surrounding environment by a communication entity in a wireless network by sending and receiving signals after the action of objects. Wherein the information of the surrounding environment may comprise information of one or more objects in the environment. The information of the object may include the position, speed, size or shape of the object, etc. These objects may change the transmission characteristics of the signal, for example, may change the transmission direction of the signal, change the transmission gain of the signal, change the transmission delay of the signal, or change the frequency of the signal, etc., so that the communicating entity may realize the perception by acquiring a change in the transmission characteristics of the signal. For example, the channel response information obtained by channel estimation may feed back the change of the signal after passing through different transmission environments (or referred to as channels), and thus the channel response information may feed back the change of the signal transmission characteristics by the object when the signal passes through the object.
Illustratively, the channel response information may include channel impulse response (channel impulse response, CIR), channel frequency response (channel frequency response, CFR), or channel state information (CHANNEL STATE information, CSI), which is not particularly limited by the embodiment of the present application.
It should be understood that the "signal after the action of the object" referred to above may include: a signal reflected by the object; a signal after refraction by the object; a signal scattered by the object; a signal after diffraction by the object; or a signal transmitted through an object, etc., to which embodiments of the present application are not particularly limited.
It will be appreciated that the objects may be moving or stationary, or may be active or passive. Active may refer to objects having data processing capabilities such as base stations, cell phones, routers, vehicles, drones, radio frequency identification (radio frequency identification, RFID) devices, and the like. Passive may refer to an object that does not have data processing capabilities, such as a human body, animal, plant, vehicle, building, etc.
It should be understood that an "object" may also be referred to as a "diffuser", "reflector", "refractor", "barrier", or "obstruction", etc. In other words, in the embodiments of the present application, the terms "object", "scattering body", "reflecting body", "refracting body", "blocking body", and "barrier" may be replaced with each other, and are described in detail herein, and are not repeated herein.
It should also be appreciated that the above-described "communication entity" may also be referred to as a "network entity", "communication device", "communication apparatus", "communication node", or "station". In other words, in the embodiments of the present application, the expressions "communication entity", "network entity", "communication device", "communication apparatus", "communication node" and "station" may be replaced with each other, and will not be described in detail.
Perceptual fusion (Harmonized Communication AND SENSING, HCS): the fifth generation evolution (5 th generation-advanced, 5.5G) landscape is an enhancement and extension to 5G scenes. First, the 5.5 landscape continues to enhance the three standard scenarios of enhanced mobile bandwidth (enhanced mobile broadband, eMBB), massive internet of things/large-scale internet of things (MASSIVE MACHINE TYPE of communication, mMTC), high reliability low latency connections (ultra reliable low latency communication, URLLC) defined by the international telecommunications union (international telecommunication union, ITU). 5.5G also expands 3 new scenes, including uplink ultra-wideband (uplink centric broadband communication, UCBC), wideband Real-time interaction (Real-time Broadband Communication, RTBC) and HCS, turning the "triangle" of the 5G scene into a richer "hexagon".
HCS is a key technology in the next generation wireless communication system, and aims to integrate two functions of wireless communication and sensing in the same system, and utilize various propagation characteristics of wireless signals to realize sensing functions such as positioning, detection, imaging and recognition of targets, so as to acquire surrounding physical environment information, improve communication performance and enhance user experience. In the communication perception integrated technology, a network device receives an echo signal to perceive by sending a perception signal, and obtains information such as the position, the speed and the like of a target in an environment.
The sensing signal may be a signal for sensing a target or detecting a target, or the sensing signal may be a signal for sensing environmental information or detecting environmental information. For example, the sensing signal may be an electromagnetic wave transmitted by the network device for sensing the environmental information. The sensing signal may also be referred to as a radar signal, a radar sensing signal, a detection signal, a radar detection signal, a surround sensing signal, etc., without limitation.
The echo signal is a signal generated by reflecting a sensing signal by a target in the environment, and the time delay of the echo signal relative to the transmitted sensing signal reflects the distance of the target; the doppler shift of the echo signal relative to the transmitted perceived signal reflects the velocity of the target.
The target (perceived target) may include various tangible objects on the ground that can be perceived, for example, ground objects such as mountains, forests, or buildings, and may also include movable objects such as vehicles, unmanned aerial vehicles, pedestrians, terminal devices, and the like. The target is a target which can be perceived by the network equipment with the perception function, and the target can feed back electromagnetic waves to the network equipment. The target may be referred to as a detected target, a sensed object, a detected object, a sensed device, or the like, without limitation.
Fig. 2 is a schematic flow chart of a method according to an embodiment of the present invention. The security high-precision positioning method based on 5G is applicable to the system and relates to interaction among a plurality of positioning terminals. The specific flow is as follows:
S201, a first positioning terminal sends a first sensing signal to a second positioning terminal in a plurality of positioning terminals.
S202, the first positioning terminal receives a first echo signal of a first sensing signal returned by an object in a positioned detection area.
Wherein the location detection area may be located between the second location terminal and the first location terminal.
The first sensing signal is carried by at least one first beam of the first positioning terminal, which can cover the positioning detection area, i.e. the data carried by the first sensing signal can be carried by at least one first beam in a scattered manner so as to transmit the beam as much as possible to realize the coverage of the positioning detection area as much as possible. Alternatively, the at least one first beam can completely cover one side area of the location detection area and the at least one first beam cannot cover the other side area of the location detection area. That is, at least one first beam can only cover about half of the positioning detection area, and as the object in the positioning detection area has scattering and reflecting effects on the first beam, the first beam is scattered to the whole positioning detection area, and the scattered beam points to the first positioning terminal, namely, is an echo, and can be received by the first positioning terminal as a first echo signal. In other words, compared with the scheme that the transmitted beam needs to completely cover the positioning detection area, the method reduces the number of beams, reduces communication overhead and improves communication efficiency.
Further, the method further comprises: and the first positioning terminal determines the positioning terminal closest to the positioning detection area from the plurality of positioning terminals as a second positioning terminal, and correspondingly, the first beam is a wide beam. It can be understood that, since the distance between the second positioning terminal and the first positioning terminal is relatively close, the wide beam can be transmitted to the second positioning terminal, that is, the transmitting power is relatively small, the communication overhead is smaller, and since the beam width of the wide beam is relatively large, more positioning detection areas can be covered, so that the number of beams can be reduced, and the overhead is further reduced.
In one possible embodiment, the method further comprises: the first positioning terminal can also send a second sensing signal to a third positioning terminal in the plurality of positioning terminals, wherein the positioning detection area is positioned between the third positioning terminal and the first positioning terminal, and the third positioning terminal and the second positioning terminal are positioned in the direction that the first positioning terminal points to the positioning detection area; the first positioning terminal receives a second echo signal of the object in the positioned detection area, which returns a second sensing signal.
Optionally, the second sensing signal is carried by at least one second beam of the first positioning terminal, the at least one second beam being capable of covering the positioning detection zone. Further, at least one second beam can completely cover one side area of the positioning detection area, and at least one second beam cannot cover the other side area of the positioning detection area, so that the number of beams is reduced, communication overhead is reduced, and communication efficiency is improved.
Still further, the method further comprises: and the first positioning terminal determines the positioning terminal farthest from the positioning detection area from the plurality of positioning terminals as a third positioning terminal, and the second beam is a narrow beam correspondingly. That is, since the third positioning terminal is relatively close to the first positioning terminal, it is necessary to transmit to the third positioning terminal using a narrow beam having a longer transmission distance, and at this time, since the distance is relatively far, the transmission power is also relatively large, and the signal intensity of the second echo signal scattered and reflected is also relatively large, so that the sensing accuracy can be also higher.
S203, the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal.
The first positioning terminal may determine a position of the object in the positioning detection area according to the first echo signal and the second echo signal, which will be described in detail below.
First, the first positioning terminal may determine a first position of the object in the positioning detection area according to a difference between a sequence in the first echo signal and a sequence in the first sensing signal. It will be appreciated that if there are a plurality of objects, there will be a corresponding plurality of first locations, i.e. the first location of each object. The first positioning terminal may also determine a second position of the object within the positioning detection region based on a difference between the sequence in the second echo signal and the sequence in the second perception signal. Similarly, if there are a plurality of objects, there are a plurality of second positions. In addition, the manner in which the first positioning terminal determines the object position through sensing may refer to the prior art, such as related description of the sense-of-general integration technology in 3GPP, which is not described herein again.
And secondly, the first positioning terminal performs weighted summation on the first position and the second position to obtain the position of the object in the positioning detection area. The second echo signal may have a larger signal strength than the first echo signal, so that the sensing may be more accurate, and accordingly, the weight corresponding to the first position in the weighted summation process may be smaller than the weight corresponding to the second position in the weighted summation process.
It will be appreciated that logic similar to that of the first positioning terminal may also be implemented for the second positioning terminal and the third positioning terminal, with the difference that the second positioning terminal and the third positioning terminal determine the area occupied by the object in the positioning detection area based on receiving the sensing signals from the first positioning terminal, such as the first sensing signal and the second sensing signal. In addition, for other positioning terminals which do not receive the sensing signal of the first positioning terminal in the plurality of positioning terminals, the other positioning terminals can send the sensing signal and receive the corresponding echo signals by themselves, and the area occupied by the object in the positioning detection area is determined.
In sum, through the general sense integration technology, the first positioning terminal can send a first sensing signal to the positioning detection area, the first sensing signal can be received by the second positioning terminal located behind the positioning detection area, and correspondingly, the first positioning terminal can also receive a first echo signal of the object in the positioning detection area, which returns to the first sensing signal, so as to determine the position of the object in the positioning detection area, and accurately position the user in cooperation under the condition of controlling networking, so that the security effect is improved.
The method provided by the embodiment of the application is described in detail above with reference to fig. 2. The following describes in detail an application system for executing the method provided by the embodiment of the present application.
Wherein the system comprises a first positioning terminal, the system being configured to: the first positioning terminal sends a first sensing signal to a second positioning terminal in the plurality of positioning terminals, wherein a positioning detection area is positioned between the second positioning terminal and the first positioning terminal; the method comprises the steps that a first positioning terminal receives a first echo signal of a first sensing signal returned by an object in a positioned detection area; and the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal.
In one possible embodiment, the first sensor signal is carried by at least one first beam of the first positioning terminal, which can cover the positioning detection area.
Alternatively, the at least one first beam can completely cover one side area of the location detection area and the at least one first beam cannot cover the other side area of the location detection area.
Further, the 5G-based security high-precision positioning system is configured to: and the first positioning terminal determines the positioning terminal closest to the positioning detection area from the plurality of positioning terminals as a second positioning terminal, and correspondingly, the first beam is a wide beam.
In one possible design, the 5G-based security high-precision positioning system is configured to: the first positioning terminal sends a second sensing signal to a third positioning terminal in the plurality of positioning terminals, wherein the positioning detection area is positioned between the third positioning terminal and the first positioning terminal, and the third positioning terminal and the second positioning terminal are positioned in the direction that the first positioning terminal points to the positioning detection area; the first positioning terminal receives a second echo signal of the object in the positioned detection area, which returns a second sensing signal.
Accordingly, the 5G-based security high-precision positioning system is configured to: the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal, and comprises the following steps: and the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal and the second echo signal.
Optionally, the second sensing signal is carried by at least one second beam of the first positioning terminal, the at least one second beam being capable of covering the positioning detection zone.
Further, the at least one second beam can completely cover one side area of the location detection area, and the at least one second beam cannot cover the other side area of the location detection area.
Still further, the 5G-based security high-precision positioning system is configured to: and the first positioning terminal determines the positioning terminal farthest from the positioning detection area from the plurality of positioning terminals as a third positioning terminal, and the second beam is a narrow beam correspondingly.
Further, the 5G-based security high-precision positioning system is configured to: the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal and the second echo signal, and comprises the following steps: the first positioning terminal determines a first position of the object in the positioning detection area according to the difference between the sequence in the first echo signal and the sequence in the first sensing signal; the first positioning terminal determines a second position of the object in the positioning detection area according to the difference between the sequence in the second echo signal and the sequence in the second sensing signal; and the first positioning terminal performs weighted summation on the first position and the second position to obtain the position of the object in the positioning detection area, wherein the weight corresponding to the first position in the weighted summation process is smaller than the weight corresponding to the second position in the weighted summation process.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. The electronic device may be a network device, or may be a chip (system) or other part or component that may be disposed on the network device, for example. As shown in fig. 3, the electronic device 400 may include a processor 401. Optionally, the electronic device 400 may also include memory 402 and/or a transceiver 403. Wherein the processor 401 is coupled to the memory 402 and the transceiver 403, e.g. may be connected by a communication bus.
The following describes the various constituent elements of the electronic device 400 in detail with reference to fig. 3:
The processor 401 is a control center of the electronic device 400, and may be one processor or a collective name of a plurality of processing elements. For example, processor 401 is one or more central processing units (central processing unit, CPU) and may be an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention, such as: one or more microprocessors (DIGITAL SIGNAL processors, DSPs), or one or more field programmable gate arrays (field programmable GATE ARRAY, FPGAs).
Alternatively, the processor 401 may perform various functions of the electronic device 400, such as performing the 5G-based security high-precision positioning method shown in fig. 3 described above, by running or executing a software program stored in the memory 402, and invoking data stored in the memory 402.
In a particular implementation, processor 401 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 3, as an embodiment.
In a particular implementation, electronic device 400 may also include multiple processors, as one embodiment. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
The memory 402 is configured to store a software program for executing the solution of the present invention, and the processor 401 controls the execution of the software program, and the specific implementation may refer to the above method embodiment, which is not described herein again.
Alternatively, memory 402 may be, but is not limited to, read-only memory (ROM) or other type of static storage device that may store static information and instructions, random access memory (random access memory, RAM) or other type of dynamic storage device that may store information and instructions, electrically erasable programmable read-only memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ-only memory, EEPROM), compact disc read-only memory (compact disc read-only memory) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 402 may be integrated with the processor 401 or may exist separately and be coupled to the processor 401 through an interface circuit (not shown in fig. 3) of the electronic device 400, which is not specifically limited by the embodiment of the present invention.
A transceiver 403 for communication with other electronic devices. For example, electronic device 400 is a terminal and transceiver 403 may be used to communicate with a network device or with another terminal device. As another example, electronic device 400 is a network device and transceiver 403 may be used to communicate with a terminal or with another network device.
Alternatively, the transceiver 403 may include a receiver and a transmitter (not separately shown in fig. 3). The receiver is used for realizing the receiving function, and the transmitter is used for realizing the transmitting function.
Alternatively, transceiver 403 may be integrated with processor 401 or may exist separately and be coupled to processor 401 by an interface circuit (not shown in fig. 3) of electronic device 400, as embodiments of the invention are not specifically limited in this regard.
It will be appreciated that the configuration of the electronic device 400 shown in fig. 3 is not limiting of the electronic device, and that an actual electronic device may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
In addition, the technical effects of the electronic device 400 may refer to the technical effects of the method described in the above method embodiments, which are not described herein.
It should be appreciated that the processor in embodiments of the invention may be a central processing unit (central processing unit, CPU), which may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (field programmable GATE ARRAY, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It should also be appreciated that the memory in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of random access memory (random access memory, RAM) are available, such as static random access memory (STATIC RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (direct rambus RAM, DR RAM).
The above embodiments may be implemented in whole or in part by software, hardware (e.g., circuitry), firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions described in accordance with embodiments of the present invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more sets of 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. The semiconductor medium may be a solid state disk.
It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. In addition, the character "/" herein generally indicates that the associated object is an "or" relationship, but may also indicate an "and/or" relationship, and may be understood by referring to the context.
In the present invention, "at least one" means one or more, and "a plurality" means two or more. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The security high-precision positioning method based on 5G is characterized by being applied to a first positioning terminal, and comprises the following steps:
the first positioning terminal sends a first sensing signal to a second positioning terminal in the plurality of positioning terminals, wherein a positioning detection area is arranged between the second positioning terminal and the first positioning terminal;
the first positioning terminal receives a first echo signal returned by an object in the positioning detection area to the first sensing signal;
The first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal;
The first sensing signal is carried by at least one first beam of the first positioning terminal, the at least one first beam can cover the positioning detection area, the at least one first beam can completely cover one side area of the positioning detection area, and the at least one first beam cannot cover the other side area of the positioning detection area;
and, the method further comprises:
the first positioning terminal sends a second sensing signal to a third positioning terminal in a plurality of positioning terminals, wherein a positioning detection area is positioned between the third positioning terminal and the first positioning terminal, and the third positioning terminal and the second positioning terminal are positioned in the direction that the first positioning terminal points to the positioning detection area;
The first positioning terminal receives a second echo signal returned by the object in the positioning detection area to the second sensing signal;
Correspondingly, the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal, and the method comprises the following steps:
The first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal and the second echo signal;
Wherein the second sensing signal is carried by at least one second beam of the first positioning terminal, the at least one second beam being capable of covering the positioning detection zone, the at least one second beam being capable of completely covering one side zone of the positioning detection zone, and the at least one second beam being incapable of covering the other side zone of the positioning detection zone.
2. The method according to claim 1, wherein the method further comprises:
and the first positioning terminal determines the positioning terminal closest to the positioning detection area from the plurality of positioning terminals as the second positioning terminal, and correspondingly, the first beam is a wide beam.
3. The method according to claim 2, wherein the method further comprises:
and the first positioning terminal determines the positioning terminal farthest from the positioning detection area in the plurality of positioning terminals as the third positioning terminal, and correspondingly, the second beam is a narrow beam.
4. A method according to claim 3, wherein the first positioning terminal determining the position of the object within the positioning detection zone from the first echo signal and the second echo signal comprises:
the first positioning terminal determines a first position of the object in the positioning detection area according to the difference between the sequence in the first echo signal and the sequence in the first sensing signal;
the first positioning terminal determines a second position of the object in the positioning detection area according to the difference between the sequence in the second echo signal and the sequence in the second sensing signal;
And the first positioning terminal performs weighted summation on the first position and the second position to obtain the position of the object in the positioning detection area, wherein the weight corresponding to the first position in the weighted summation process is smaller than the weight corresponding to the second position in the weighted summation process.
5. The utility model provides a security protection high accuracy positioning system based on 5G which characterized in that, a security protection high accuracy positioning system based on 5G includes first positioning terminal, the system is configured as:
the first positioning terminal sends a first sensing signal to a second positioning terminal in a plurality of positioning terminals, wherein a positioning detection area is positioned between the second positioning terminal and the first positioning terminal;
the first positioning terminal receives a first echo signal returned by an object in the positioning detection area to the first sensing signal;
The first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal;
The first sensing signal is carried by at least one first beam of the first positioning terminal, the at least one first beam can cover the positioning detection area, the at least one first beam can completely cover one side area of the positioning detection area, and the at least one first beam cannot cover the other side area of the positioning detection area;
And, the system is configured to:
the first positioning terminal sends a second sensing signal to a third positioning terminal in a plurality of positioning terminals, wherein a positioning detection area is positioned between the third positioning terminal and the first positioning terminal, and the third positioning terminal and the second positioning terminal are positioned in the direction that the first positioning terminal points to the positioning detection area;
The first positioning terminal receives a second echo signal returned by the object in the positioning detection area to the second sensing signal;
Correspondingly, the first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal, and the method comprises the following steps:
The first positioning terminal determines the position of the object in the positioning detection area according to the first echo signal and the second echo signal;
Wherein the second sensing signal is carried by at least one second beam of the first positioning terminal, the at least one second beam being capable of covering the positioning detection zone, the at least one second beam being capable of completely covering one side zone of the positioning detection zone, and the at least one second beam being incapable of covering the other side zone of the positioning detection zone.
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| CN117220725A (en) * | 2023-10-30 | 2023-12-12 | 威海天拓合创电子工程有限公司 | Detection error correction method and device for multi-phased array antenna |
| CN117471485A (en) * | 2023-10-31 | 2024-01-30 | 中铁六局集团路桥建设有限公司 | Expressway roadbed high slope displacement monitoring method based on unmanned plane laser radar |
| CN117499979A (en) * | 2023-11-02 | 2024-02-02 | 威海天拓合创电子工程有限公司 | Target detection method and device for phased array antenna |
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