CN114268897A

CN114268897A - Positioning service method and related device

Info

Publication number: CN114268897A
Application number: CN202010970704.7A
Authority: CN
Inventors: 张烨
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2022-04-01
Anticipated expiration: 2040-09-15
Also published as: CN114268897B; WO2022057416A1

Abstract

The application discloses a positioning service method and a related device, which are applied to electronic equipment in a positioning service system, wherein the positioning service system further comprises a first base station and at least two second base stations, and the method comprises the following steps: receiving a first data frame broadcasted by the first base station and a second data frame broadcasted by the second base station, wherein the first data frame carries the position of the first base station, the second data frame carries the position of the second base station which broadcasts the second data frame, and the broadcast time of different data frames is different; determining the position of the electronic device based on at least two receiving time differences, the position of the first base station and/or the position of the second base station, the receiving time differences being used for representing the time differences of arrival of two data frames at the electronic device. By adopting the embodiment of the application, the positioning efficiency can be improved.

Description

Positioning service method and related device

Technical Field

The present application relates to the field of electronic technologies, and in particular, to a location service method and a related device.

Background

At present, in an indoor positioning technology based on Ultra Wide Band (UWB), a plurality of anchor point devices (also called base stations) with fixed positions are generally arranged in a space where a user moves in a wired manner, the user wears electronic devices supporting the UWB technology, the base stations perform signaling interaction with the electronic devices of each user to determine a distance between the base station and the electronic devices, and report the distance and the identity information of the electronic devices to a location server, and the location server calculates the current position of the user according to distance information of the same electronic device reported by at least three base stations, thereby implementing a positioning service.

Disclosure of Invention

The embodiment of the application provides a positioning service method and a related device.

In a first aspect, an embodiment of the present application provides a location service method, which is applied to an electronic device in a location service system, where the location service system further includes a first base station and at least two second base stations; the method comprises the following steps:

receiving a first data frame broadcasted by the first base station and a second data frame broadcasted by the second base station, wherein the first data frame carries the position of the first base station, the second data frame carries the position of the second base station which broadcasts the second data frame, and the broadcast time of different data frames is different;

determining the position of the electronic device based on at least two receiving time differences, the position of the first base station and/or the position of the second base station, the receiving time differences being used for representing the time differences of arrival of two data frames at the electronic device.

In a second aspect, an embodiment of the present application provides a location service system, where the location service system includes an electronic device, a first base station, and at least two second base stations;

the first base station is configured to broadcast a first data frame, where the first data frame carries a position of the first base station;

the second base station is configured to broadcast a second data frame, where the second data frame carries a position of the second base station that broadcasts the second data frame;

the electronic equipment is used for receiving a first data frame broadcasted by the first base station and receiving a second data frame broadcasted by the second base station, and the broadcasting time of different data frames is different; determining the position of the electronic device based on at least two receiving time differences, the position of the first base station and/or the position of the second base station, the receiving time differences being used for representing the time differences of arrival of two data frames at the electronic device.

In a third aspect, an embodiment of the present application provides a location service method, which is applied to a second base station in a location service system, where the location service system further includes a first base station and an electronic device, and the number of the second base stations in the location service system is at least two; the method comprises the following steps:

receiving a first data frame broadcasted by a first base station, wherein the first data frame carries the position of the first base station;

and after receiving the target delay of the first data frame, broadcasting a second data frame, wherein the second data frame carries the position of the second base station broadcasting the second data frame, the first data frame and the second data frame are used for the electronic equipment to determine the position of the electronic equipment, and the broadcasting time of different data frames is different.

In a fourth aspect, an embodiment of the present application provides a location service apparatus, which is applied to an electronic device in a location service system, where the location service system further includes a first base station and at least two second base stations; the device comprises:

a receiving unit, configured to receive a first data frame broadcast by the first base station and a second data frame broadcast by the second base station, where the first data frame carries a position of the first base station, the second data frame carries a position of the second base station that broadcasts the second data frame, and broadcast times of different data frames are different;

a location service unit, configured to determine a location of the electronic device based on at least two receiving time differences, the location of the first base station and/or the location of the second base station, where the receiving time differences are used to represent time differences between two data frames arriving at the electronic device.

In a fifth aspect, an embodiment of the present application provides a location service apparatus, which is applied to a second base station in a location service system, where the location service system further includes a first base station and an electronic device, and the number of the second base stations in the location service system is at least two; the device comprises:

a receiving unit, configured to receive a first data frame broadcasted by a first base station, where the first data frame carries a position of the first base station;

a sending unit, configured to broadcast a second data frame after receiving the target delay of the first data frame, where the second data frame carries a position of the second base station that broadcasts the second data frame, and the first data frame and the second data frame are used by the electronic device to determine the position of the electronic device, and broadcast times of different data frames are different.

In a sixth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in any of the methods of the first aspect of the embodiment of the present application.

In a seventh aspect, an embodiment of the present application provides a base station, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in any of the methods in the third aspect of the present application.

In an eighth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program enables a computer to perform part or all of the steps described in any one of the methods in the first aspect of the embodiments of the present application, or the computer program enables a computer to perform part or all of the steps described in any one of the methods in the third aspect of the embodiments of the present application.

In a ninth aspect, the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program is operable to cause a computer to perform some or all of the steps described in any of the methods of the first aspect of the embodiments of the present application, and the computer program is operable to cause a computer to perform some or all of the steps described in any of the methods of the third aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, an electronic device in a location service system first receives a first data frame broadcast by a first base station in the system and receives a second data frame broadcast by a second base station in the system, where the data frames carry positions of the base stations broadcasting the data frames, and broadcast times of different data frames are different, and then the electronic device determines a position of the electronic device based on at least two receiving time differences, the position of the first base station and/or the position of the second base station, where the receiving time difference is used to represent a time difference between two data frames reaching the electronic device. Therefore, the electronic equipment only receives the information and does not send the information, power consumption is reduced, in addition, the position of the electronic equipment is determined by the electronic equipment and not determined by the position server, the data volume required by positioning is relatively small, the complexity of positioning calculation is reduced, and the positioning efficiency is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1A is a schematic diagram of an application scenario of positioning based on UWB technology according to an embodiment of the present application;

fig. 1B is a schematic diagram of a ranging signal interaction of an SS-TWR according to an embodiment of the present disclosure;

fig. 1C is a schematic diagram of a ranging signal interaction of a DS TWR according to an embodiment of the present disclosure;

fig. 1D is a schematic diagram of one-to-many interaction between a tag and a base station according to an embodiment of the present application;

fig. 1E is a schematic diagram of a final coordinate obtained by calculating TDoA according to an embodiment of the present application;

fig. 1F is a schematic structural diagram of a superframe provided in an embodiment of the present application;

fig. 1G is a schematic structural diagram of a super frame added to a beacon frame according to an embodiment of the present application;

fig. 1H is a schematic structural diagram of a location service system 10 according to an embodiment of the present application;

fig. 1I is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 2A is a schematic flowchart of a location service method according to an embodiment of the present application;

fig. 2B is a schematic diagram of a base station broadcasting data frame according to an embodiment of the present application;

fig. 2C is a schematic diagram of a data frame broadcast time and a data frame receiving time provided by an embodiment of the present application;

FIG. 2D is a schematic diagram illustrating an intersection of hyperbolas as a location of an electronic device according to an embodiment of the present application;

fig. 3 is a schematic flowchart of another location service method provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a location service apparatus according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another location service device provided in the embodiment of the present application;

fig. 6 is a block diagram illustrating functional modules of a location service device according to an embodiment of the present disclosure.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to better understand the scheme of the embodiments of the present application, the following first introduces the related terms and concepts that may be involved in the embodiments of the present application.

(1) Ultra Wideband (UWB) is an unloaded communication technology, and according to the Federal Communications Commission (Federal Communications Commission) standard, the operating frequency band of UWB is 3.1-10.6GHz, the ratio of-10 dB bandwidth to the system center frequency is greater than 20%, and the system bandwidth is at least 500 MHz. Data is transmitted by using non-sine wave narrow pulses of nanosecond to microsecond level. The traditional ultra-wideband UWB technology is used for industrial places such as mines, warehouses and the like, and the main application scene is to monitor the real-time positions of employees and goods indoors. The base stations are well calibrated in indoor places and are connected with each other in a wired or Wi-Fi mode for synchronization. In the example application scenario shown in fig. 1A, a is a base station supporting UWB technology positioning, CLE PC is a location server (also called positioning server, e.g., location computing device), Ehternet LAN-TCP/IP is a transmission control protocol/internet protocol supporting ethernet local area network between base stations, and location monitoring for users wearing tag devices is implemented by providing at least one base station in each area.

The one-to-one interaction between the labels and the base station has two modes of SS-TWR and DSTWR.

First, Single-sided Two-way Ranging (SS-TWR)

SS-TWR is a simple measure of the time of a single round trip message, with device a actively sending data to device B, and device B returning data in response to device a. As shown in fig. 1B, device a (device a) actively sends (TX) data (corresponding to the time node from TX to the time start point in the figure), and records a sending time stamp, device B (device B) records a receiving time stamp after Receiving (RX), and RMARKER represents the time node when the data is completely transmitted (received or sent); after the time delay Treply, the device B sends data and simultaneously records the sending time stamp, and the device A receives the data and simultaneously records the receiving time stamp.

Therefore, two time difference data, namely the time difference Tround of the device A and the time difference Treply of the device B can be obtained, and finally the flight time of the wireless signal is obtained

The following were used:

both differential times are calculated based on a local clock, and the local clock errors can be cancelled out, but a slight clock offset exists between different devices, and assuming that the clock offsets of the devices a and B are eA and eB, respectively, the obtained flight time increases with the increase of Treply, and the equation of the ranging error is as follows:

wherein, Tprop is the actual flight time of the wireless signal.

Second, bilateral Two-way Ranging (DS TWR)

The DS TWR obtains two round-trip delays based on 3 message transfers between the initiating node and the responding node, and measures the distance at the responding end. As shown in fig. 1C, when the device a returns data immediately after receiving the data, the following four time differences can be obtained:

first time difference of device A, Tround1 (time difference between data transmission and data reception)

Delay Treply1 after device B receives data for the first time (delay after receiving first data)

Third time difference of device B, round2 (time difference of sending data and receiving data)

Delay Treply2 after device a receives data for the first time (delay after receiving second data)

Calculating time of flight of a wireless signal using the following formula

Analyzing the errors of the bilateral two-way ranging flight time: the above mechanisms of ranging are all asymmetric ranging methods, as they are not required to be identical for response time. Even with 20ppm crystals, the clock error is on the ps level. The error formula is as follows:

wherein k is_aAnd k_bIs the ratio of the actual frequency of the crystal oscillator to the nominal frequency, thus k_aAnd k_bVery close to 1.

Tag to base station one-to-many interaction

Each employee or cargo has a Tag with a unique identifier, which periodically broadcasts a signal to surrounding base stations. As shown in fig. 1D, after the Tag (Tag in the figure) broadcasts the signal (poll in the figure), the RMARKER indicates a time node when the data is completely transmitted (received or transmitted); the surrounding three base stations (Anchor A, Anchor B, Anchor C in the figure) receive the signals, and sequentially send reply signals (RespA, RespB, RespC in the figure) to the tags according to the synchronization information among the base stations. When the tag receives the reply signals of three or more base stations, it sends a broadcast signal (Final in the figure) to the outside. Therefore, each base station can calculate the flight time of the wireless signal at the self node after three base stations respectively hear the final packet by the DS TWR mechanism interactive signal.

TpropA is the flight time of a wireless signal between a base station a and a tag, TpropB is the flight time of a wireless signal between a base station B and a tag, TpropC is the flight time of a wireless signal between a base station C and a tag, Tround1A is the time difference between tag transmission data and tag reception base station a data, Tround1B is the time difference between tag transmission data and tag reception base station B data, Tround1C is the time difference between tag transmission data and tag reception base station C data, Treply1A is the delay of base station a, Treply1B is the delay of base station B, Treply1C is the delay of base station C, Treply2A is the delay of tag reception base station a from tag reception to tag transmission, Treply2B is the delay of tag reception base station B from tag reception to tag transmission, and Treply2C is the delay of tag reception base station C from tag reception to tag transmission.

And each base station uploads the calculation result to the main server. As shown in fig. 1E, TDoA is three-dimensionally calculated on the main server to obtain the final coordinates, X1, X2, and X3 correspond to the positions of Anchor a, Anchor B, and Anchor C, the circle corresponds to the position range with the distance determined by the flight time of the wireless signal as the radius, and Xu is the position of the tag.

(2) Super frame

There are multiple tags in an indoor scene, and a super frame needs to be set on the whole time axis for continuous repetition. Each tag needs to allocate a slot, complete respective position calculation in the respective slot, and upload the slot to the base station.

As shown in fig. 1F, in the super frame schematic structure, interval represents a time interval, scheduling interval represents a scheduled time interval, Tag I slot represents a time slot of a Tag I, Poll TX represents a Tag transmission signal, Resp-X RX represents a signal of a Tag receiving base station X, Resp-Y RX represents a signal of a Tag receiving base station Y, Resp-Z RX represents a signal of a Tag receiving base station Z, Final TX represents a Tag transmission Final signal,

if the synchronization between the base stations is also realized wirelessly through the ultra-wideband UWB technology, a BeaCoN frame (BeaCoN, BCN) time slot needs to be added before the interactive time slot of the tags and the base stations, the tags communicate with each other in the time slot, and the respective sequence is determined. As shown in fig. 1G, superframe (n) indicates superframe n, Idle Time indicates Idle Time, BCN indicates a Time Slot for carrying a beacon frame, SVC indicates a reserved Time Slot, TWR Slot indicates a Time Slot for carrying a bidirectional ranging signal, wake up indicates an awake Time Slot, and RX indicates a receiving status.

In the above scenario of the ultra-wideband UWB technology of the conventional toB, the following features can be summarized:

the number of tags is limited and the slot address of each tag is already allocated.

The base station needs to calibrate the position in advance and is connected in a wired or ultra-wideband UWB technology-distinguished mode to carry out signal synchronization.

Both the base station and the tag need to transmit and receive signals.

The indoor coordinates of the label are calculated by the base station side and returned to the server, and the label does not know the coordinates of the label per se.

The tag only wakes up in the slot period belonging to itself.

Based on the problems existing in the current UWB positioning technology, the present application provides a positioning service method and system, which are described in detail below.

Referring to fig. 1H, an embodiment of the present application provides a positioning service system 10, which includes an electronic device 100 and a base station 200, where the electronic device 100 receives a UWB signal broadcast by the base station 200, the base station 200 is a service-side device supporting UWB technology, such as a UWB base station, a UWB anchor device, and the like, and the electronic device 200 is a user-side device supporting UWB technology, which may include, but is not limited to, a wireless communication device 110, an entry transponder device 120, a home device 130, a tie tag 140, and the like. Other UWB devices (which are not shown in fig. 1H for simplicity) may include other computing devices including, but not limited to, laptop computers, desktop computers, tablet computers, personal assistants, routers, monitors, televisions, printers, and appliances.

For example, fig. 1I shows a schematic structural diagram of the electronic device 100. The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a compass 190, a motor 191, a pointer 192, a camera 193, a display screen 194, a Subscriber Identification Module (SIM) card interface 195, and the like.

It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. Wherein the different processing units may be separate components or may be integrated in one or more processors. In some embodiments, the electronic device 101 may also include one or more processors 110. The controller can generate an operation control signal according to the instruction operation code and the time sequence signal to complete the control of instruction fetching and instruction execution. In other embodiments, a memory may also be provided in processor 110 for storing instructions and data. Illustratively, the memory in the processor 110 may be a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. This avoids repeated accesses and reduces the latency of the processor 110, thereby increasing the efficiency with which the electronic device 101 processes data or executes instructions.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a SIM card interface, a USB interface, and/or the like. The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 101, and may also be used to transmit data between the electronic device 101 and peripheral devices. The USB interface 130 may also be used to connect to a headset to play audio through the headset.

It should be understood that the interface connection relationship between the modules illustrated in the embodiments of the present application is only an illustration, and does not limit the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 140 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 may also supply power to the electronic device through the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the external memory, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The

antennas

1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

The wireless communication module 160 may provide a solution for wireless communication applied to the electronic device 100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (blue tooth, BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), UWB, and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

The electronic device 100 implements display functions via the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, videos, and the like. The display screen 194 includes a display panel. The display panel may be a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a mini light-emitting diode (mini-light-emitting diode, mini), a Micro-o led, a quantum dot light-emitting diode (QLED), or the like. In some embodiments, the electronic device 100 may include 1 or more display screens 194.

The electronic device 100 may implement a photographing function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, the application processor, and the like.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, the electronic device 100 may include 1 or more cameras 193.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 may play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. Applications such as intelligent recognition of the electronic device 100 can be realized through the NPU, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

Internal memory 121 may be used to store one or more computer programs, including instructions. The processor 110 may execute the above-mentioned instructions stored in the internal memory 121, so as to enable the electronic device 101 to execute the method for displaying page elements provided in some embodiments of the present application, and various applications and data processing. The internal memory 121 may include a program storage area and a data storage area. Wherein, the storage program area can store an operating system; the storage program area may also store one or more applications (e.g., gallery, contacts, etc.), and the like. The storage data area may store data (such as photos, contacts, etc.) created during use of the electronic device 101, and the like. Further, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage components, flash memory components, Universal Flash Storage (UFS), and the like. In some embodiments, the processor 110 may cause the electronic device 101 to execute the method for displaying page elements provided in the embodiments of the present application, and other applications and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor 110. The electronic device 100 may implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor, etc. Such as music playing, recording, etc.

The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.

Referring to fig. 2A, fig. 2A is a schematic flowchart of a positioning service method, which is applied to an electronic device in a positioning service system, where the positioning service system further includes a first base station and at least two second base stations, and as shown in the figure, the positioning service method includes the following operations.

Step 201: receiving a first data frame broadcasted by the first base station and receiving a second data frame broadcasted by the second base station, wherein the first data frame carries the position of the first base station, and the second data frame carries the position of the second base station which broadcasts the second data frame.

Wherein the broadcast times of different data frames are different. For example, suppose that the positioning service system includes a first base station, a second base station 1 and a second base station 2, provided that the first base station broadcasts a first data frame at broadcast time 1, the second base station 1 broadcasts a second data frame 1 at broadcast time 2, and a third base station broadcasts a second data frame 2 at broadcast time 3, the broadcast time 1, the broadcast time 2 and the broadcast time 3 are different from each other.

Wherein the broadcast time of the first data frame is earlier than the broadcast time of the second data frame. Specifically, the first base station broadcasts the first data frame first, and the second base station broadcasts the second data frame after receiving the target delay of the first data frame, as shown in fig. 2B.

The first data frame further carries a broadcast time for broadcasting the first data frame and an identifier (such as a device number) of the first base station.

The second data frame also carries a broadcast time for broadcasting the second data frame and an identifier of the second base station for broadcasting the second data frame.

Step 202: determining the position of the electronic device based on at least two receiving time differences, the position of the first base station and/or the position of the second base station, the receiving time differences being used for representing the time differences of arrival of two data frames at the electronic device.

In an implementation manner of the present application, the method further includes:

and determining the time difference between the receiving time of the first data frame and the receiving time of each second data frame respectively to obtain the at least two receiving time differences.

For example 1, suppose that the positioning service system includes a first base station, a second base station 1 and a second base station 2, if the electronic device receives a first data frame broadcast by the first base station at time 1, receives a second data frame 1 broadcast by the second base station 1 at time 2, and receives a second data frame 2 broadcast by the second base station 2 at time 3, the two received time differences are time 1-time 2, and time 1-time 3.

and determining the time difference of the receiving time of any two data frames to obtain the at least two receiving time differences.

For example 2, assuming that the location service system includes a first base station, a second base station 1 and a second base station 2, if the electronic device receives a first data frame broadcast by the first base station at time 1, receives a second data frame 1 broadcast by the second base station 1 at time 2, and receives a second data frame 2 broadcast by the second base station 2 at time 3, the three received time differences are time 1-time 2, time 1-time 3, and time 2-time 3.

In an implementation manner of the present application, the determining the location of the electronic device based on at least two receiving time differences, the location of the first base station, and/or the location of the second base station includes:

acquiring the broadcast time of the first data frame and the broadcast time of the second data frame, and acquiring at least two broadcast time differences based on the broadcast time of the two data frames corresponding to each receiving time difference;

obtaining at least two corrected receiving time differences based on the at least two receiving time differences and the at least two broadcasting time differences, and determining the position of the electronic device based on the at least two corrected receiving time differences, the position of the first base station and/or the position of the second base station.

Wherein the deriving at least two corrected receive time differences based on the at least two receive time differences and the at least two broadcast time differences comprises: obtaining at least two corrected receiving time differences based on the at least two receiving time differences, the at least two broadcasting time differences and a first formula, wherein the first formula is as follows: t1 is (T2-T3), T1 is the corrected reception time difference, T2 is the reception time difference, and T3 is the broadcast time difference.

As an example 3, please refer to fig. 2C and based on example 1, if the broadcast time of the first data frame is broadcast time 1, the broadcast time of the second data frame 1 is broadcast time 2, and the broadcast time of the second data frame 2 is broadcast time 3, the two obtained broadcast time differences are broadcast time 1-broadcast time 2 and broadcast time 1-broadcast time 3, and the two obtained corrected receiving time differences are (time 1-time 2) - (broadcast time 1-broadcast time 2), and (time 1-time 3) - (broadcast time 1-broadcast time 3).

Example 4, based on example 2, if the broadcast time of the first data frame is broadcast time 1, the broadcast time of the second data frame 1 is broadcast time 2, and the broadcast time of the second data frame 2 is broadcast time 3, then the three obtained broadcast time differences are broadcast time 1-broadcast time 2, broadcast time 1-broadcast time 3, and broadcast time 2-broadcast time 3, and the three obtained corrected receive time differences are (time 1-time 2) - (broadcast time 1-broadcast time 2), (time 1-time 3) - (broadcast time 1-broadcast time 3), and (time 2-time 3) - (broadcast time 2-broadcast time 3).

In an implementation manner of the present application, the determining the location of the electronic device based on the at least two corrected receiving time differences, the location of the first base station, and/or the location of the second base station includes:

determining at least two range differences based on the at least two corrected receive time differences and the airspeeds;

establishing at least two positioning models based on the at least two distance differences, the location of the first base station and/or the location of the second base station;

determining a location of the electronic device based on the at least two positioning models.

Wherein determining at least two range differences based on the at least two corrected differences in time of receipt and the airspeed comprises: determining at least two range differences based on the at least two corrected receive time differences, the airspeed, and a second formula, the second formula being: s is T1 × V, S is a distance difference, T1 is a corrected reception time difference, and V is a flying speed.

For example 5, the positioning model is a hyperbolic function, and based on example 3, it is assumed that the location of the first base station is represented as (x1, y1), the location of the second base station 1 is represented as (x2, y3), the location of the second base station 2 is represented as (x3, y3), the location of the electronic device is represented as (x, y), and two established hyperbolic functions are:

and

where S1 is the distance difference determined based on (time 1-time 2) - (broadcast time 1-broadcast time 2), and S2 is the distance difference determined based on (time 1-time 3) - (broadcast time 1-broadcast time 3).

For example 6, the positioning model is a hyperbolic function, and based on example 4, it is assumed that the location of the first base station is represented as (x1, y1), the location of the second base station 1 is represented as (x2, y3), the location of the second base station 2 is represented as (x3, y3), the location of the electronic device is represented as (x, y), and three established hyperbolic functions are:

and

where S1 is a distance difference determined based on (time 1-time 2) - (broadcast time 1-broadcast time 2), S2 is a distance difference determined based on (time 1-time 3) - (broadcast time 1-broadcast time 3), and S2 is a distance difference determined based on (time 2-time 3) - (broadcast time 2-broadcast time 3).

In an implementation manner of the present application, the determining the location of the electronic device based on the at least two positioning models as a hyperbolic function includes:

calculating the intersection point of any two hyperbolic functions to obtain N intersection points, wherein N is a positive integer;

if the N is 1, determining the value of the intersection point as the position of the electronic equipment;

and if the N is larger than 1, determining the value of a target intersection point as the position of the electronic equipment, wherein the target intersection point is any one of the N intersection points.

Optionally, the method further comprises:

and if the N is larger than 1, determining a central point based on the N intersection points, and determining the value of the central point as the position of the electronic equipment.

Specifically, based on example 5, since x1, y1, x2, y2, x3, y3, S1 and S2 are known, x and y can be calculated by two hyperbolic functions, and then the position of the electronic device is obtained, as shown in fig. 2D. Based on example 6, x1, y1, x2, y2, x3, y3, S1, S2, and S3 are known, that is, 3 sets of values are obtained by calculation using 3 hyperbolic functions, if the 3 sets of values are the same, the value is used as the position of the electronic device, and if the 3 sets of values are different, the center point is obtained from the 3 sets of values, and the coordinates of the center point are used as the position of the electronic device.

In an implementation manner of the present application, a distance between any two of the electronic device, the first base station, and the second base station is less than or equal to a set distance. The set distance is, for example, 2m, 3m, 5m, 10m, 12m or other values.

In one possible example, the application running in the foreground of the electronic device is a settings application.

Examples of the setting application include an instant messaging application, a shopping application, a taxi taking application, a consumption comment application, and the like.

It can be seen that, in the embodiment of the application, the position of the electronic device is determined only when the application running in the foreground is the set application, so that the position of the electronic device is prevented from being determined unnecessarily, and further, the power consumption of the electronic device is reduced.

In one possible example, the interface displayed in the foreground of the electronic device is a setting interface of the setting application.

The setting interface includes, for example, a main interface, a location sharing interface, and the like.

It can be seen that, in the embodiment of the application, the position of the electronic device is determined only when the interface displayed by foreground operation is the setting interface of the setting application, so that the position of the electronic device is prevented from being determined under an unnecessary condition, and the power consumption of the electronic device is further reduced.

In one possible example, after determining the location of the electronic device, the method further comprises:

determining a location validity duration based on a location of the electronic device;

starting a timer;

and when the timing duration of the timer is greater than or equal to the effective location duration, re-determining the location of the electronic equipment.

Wherein the timer is turned off when the position of the electronic device is re-established.

Optionally, the determining a location validity duration based on the location of the electronic device includes:

determining a target place where the electronic equipment is located based on the position of the electronic equipment;

a location validity duration is determined based on the target location and a current system time.

Optionally, the determining a location validity duration based on the target location and the current system time includes:

and determining the effective position duration based on a first mapping relation, the target place and the current system time, wherein the first mapping relation is the mapping relation of the place, the time and the effective position duration. The first mapping relationship is shown in table 1.

TABLE 1

predicting a first duration for the electronic device to stay at the target site based on a current system time;

determining the effective time length of the position based on the current system time, the first time length and a time length calculation formula;

wherein, the time length calculation formula is as follows: t is₁＝k*T₂Said T is₁For a location valid duration, T₂And k is the expected duration of staying at the place, the k is a coefficient, the k is less than or equal to 1, and the k is determined based on the current system time.

Wherein the k is determined based on a current system time, comprising: the k is determined based on the current system time and a second mapping relationship, which is a mapping relationship of time and coefficient, and the second mapping relationship is shown in table 2.

TABLE 2

Time	Coefficient of performance
		9:00am～20:00pm	0.85
20:00pm～22:00pm	0.9
		22:00pm～24:00pm	0.95
......	......

Wherein the predicting a first duration for which the electronic device stays at the target location based on the current system time comprises:

acquiring a motion record of the electronic equipment;

determining a first target number of times that the electronic device stays at the target place in a target time period and a time length of each time that the electronic device stays at the target place based on the motion record, wherein the target time period comprises a current system time;

and predicting a first time length for the electronic equipment to stay at the target place based on the first target times and the time length for the electronic equipment to stay at the target place each time.

And the central node of the target time interval is the current system time. The duration of the target period may be, for example, 1h, 2h, 3h, or other values.

For example, assuming that the current system time is 16:54:30 and the target time period is 15: 54-17: 54, if the motion record of the electronic device records that the electronic device stays in the target field for all 3 times in the target time period, and the duration of the 3 stays is 50min, 45min, and 1h, respectively, the first duration of the electronic device staying in the target field at this time is expected to be: (50min +45min +60min)/3 ═ 51.7 min.

It can be seen that, in the embodiment of the application, the position of the electronic device is determined again after a certain time is limited, the position of the electronic device is prevented from being determined under an unnecessary condition, and further, the power consumption of the electronic device is reduced.

determining a target environment in which the electronic device is located based on the position of the electronic device;

if the target environment is a set environment and the electronic equipment is in a moving state, predicting a second time length for the electronic equipment to stay in the target environment based on the target environment;

starting a timer;

and when the timing duration of the timer is greater than or equal to the second duration, re-determining the position of the electronic equipment.

Examples of the setting environment include a mall, an exhibition hall, a theater, a library, and the like.

Optionally, the predicting, based on the target environment, a second duration of time that the electronic device stays in the target environment includes: and predicting a second duration of the electronic equipment staying in the target environment based on a third mapping relation and the target environment, wherein the third mapping relation is a mapping relation between the environment and the duration.

The third mapping relationship is shown in table 3, and as shown in table 3, the durations corresponding to different environments may be the same or different.

TABLE 3

Environment(s)	Duration of time
		Market place	30min
Theatre	30min
		Exhibition hall	50min
......	......

Optionally, the predicting, based on the target environment, a second duration of time that the electronic device stays in the target environment includes: acquiring a motion record of the electronic equipment;

determining a second target number of times that the electronic device stays in the target environment and a duration of time each time the electronic device stays in the target environment based on the motion record;

and predicting a second time length of the electronic equipment staying in the target environment based on the second target times and the time length of the electronic equipment staying in the target environment each time.

For example, if it is recorded in the motion record of the electronic device that the electronic device stays in the target environment for 3 times, and the time lengths of the 3 stay times are 50min, 45min, and 1h, respectively, then the second time length that the electronic device stays in the target environment this time is expected to be: (50min +45min +60min)/3 ═ 51.7 min.

It can be seen that, in the embodiment of the application, under a specific condition, the position of the electronic device is re-determined after a certain time period is limited, so that the position of the electronic device is prevented from being determined under an unnecessary condition, and further, the power consumption of the electronic device is reduced.

determining a target operation based on the target location;

and executing the target operation.

Optionally, the determining a target operation based on the target location includes: and determining a target operation based on a fourth mapping relation and the target place, wherein the third mapping relation is a mapping relation between the place and the operation, and the fourth mapping relation is shown in table 4.

TABLE 4

Location	Operation of
		Dining room	Recommended dish
Library	Recommending books
		......	......

Optionally, the destination place is a first restaurant, the destination operation is recommending dishes, and the performing the destination operation includes: determining eating habits of a user using the electronic equipment and determining good dishes of the first restaurant; recommending target dishes for the user based on the eating habits and the good-rated dishes.

Wherein, the number of the target dishes can be one or more.

The eating habits of the user are determined based on the shopping record or the consumption record, or are customized by the user, which is not limited herein.

The good-rated dishes of the first restaurant are determined based on the comment of the first restaurant or are self-defined by the first restaurant, and are not limited herein.

For example, assuming that the eating habits of the users are hot meat preference, the favorite dishes of the first restaurant are dish 1, dish 2, dish 3, dish 4 and dish 5, and if dish 2 and dish 3 are hot meat dish, dish 2 and dish 3 are recommended to the users.

Optionally, the target place is a first bookstore, the target operation is recommending books, and the performing the target operation includes: determining reading hobbies of a user using the electronic equipment; recommending the target book to the user based on the reading hobbies.

Wherein the number of target books may be one or more. The target book may or may not be a popular book, and is not limited herein.

The reading preference of the user is determined based on the reading record or book shopping record, or is user-defined, and is not limited herein.

For example, assuming that the reading preference of the user is used as art, books of art category are recommended to the user.

It can be seen that, in the embodiment of the application, after the position of the electronic device is determined, the electronic device performs a corresponding operation based on the determined position, and the intelligence of the electronic device is improved.

Referring to fig. 3, fig. 3 is a schematic flowchart of another positioning service method provided in this embodiment of the present application, and is applied to a second base station in a positioning service system, where the positioning service system further includes a first base station and an electronic device, and the number of the second base stations in the positioning service system is at least two.

Step 301: receiving a first data frame broadcasted by a first base station, wherein the first data frame carries the position of the first base station.

Step 302: and after receiving the target delay of the first data frame, broadcasting a second data frame, wherein the second data frame carries the position of the second base station broadcasting the second data frame, the first data frame and the second data frame are used for the electronic equipment to determine the position of the electronic equipment, and the broadcasting time of different data frames is different.

In an implementation manner of the present application, the method further includes: and determining the target delay based on the time slot number of the second base station.

Wherein the determining the target delay based on the slot number of the second base station comprises: and determining the target delay corresponding to the time slot number of the second base station based on the mapping relation between the time slot number and the delay.

In an implementation manner of the present application, the method further includes: and monitoring a data frame of at least one base station in the positioning service system to realize the configuration of the time slot number of the positioning service system.

Wherein, the configuring of the time slot number of the base station by intercepting the data frame of at least one base station in the positioning service system comprises:

receiving a data frame of the at least one base station;

extracting a time slot number report of each data frame in the data frames of the at least one base station, wherein the time slot number report comprises the corresponding relation between the equipment number of the base station and the time slot number;

and determining the self time slot number according to the at least one time slot number report of the at least one base station.

The timeslot number report may be timeslot numbers of all base stations directly heard by the current base station and timeslot numbers of the current base station.

As can be seen, in this example, the second base station can more comprehensively learn the time slot occupation situation of other base stations of the current system through the time slot number, so as to provide the time slot configuration accuracy.

Consistent with the foregoing embodiment, the base station in the positioning service system shown in fig. 1H may specifically include a first base station and at least two second base stations;

the first base station is used for broadcasting a first data frame, and the first data frame carries the position of the first base station;

the second base station is used for broadcasting a second data frame, and the second data frame carries the position of the second base station which broadcasts the second data frame;

In an implementation manner of the present application, in terms of broadcasting the second data frame, the second base station is specifically configured to: receiving the first data frame; and broadcasting the second data frame after receiving the target delay of the first data frame.

In an implementation manner of the present application, the electronic device is further configured to determine time differences between the receiving time of the first data frame and the receiving time of each of the second data frames, so as to obtain the at least two receiving time differences.

In an implementation manner of the present application, the electronic device is further configured to determine a time difference between receiving times of any two data frames, and obtain the at least two receiving time differences.

In an implementation manner of the present application, in determining the location of the electronic device based on at least two receiving time differences, the location of the first base station, and/or the location of the second base station, the electronic device is specifically configured to:

In an implementation manner of the present application, in determining the location of the electronic device based on at least two corrected receiving time differences, the location of the first base station, and/or the location of the second base station, the electronic device is specifically configured to:

In an implementation of the present application, the positioning models are hyperbolic functions, and in terms of determining the location of the electronic device based on the at least two positioning models, the electronic device is specifically configured to: calculating the intersection point of any two hyperbolic functions to obtain N intersection points, wherein N is a positive integer;

In an implementation manner of the present application, the electronic device is further configured to determine a central point based on the N intersection points and determine a value of the central point as the position of the electronic device if N is greater than 1.

It can be seen that, in the embodiment of the application, the electronic device only receives information and does not send information, so that power consumption is reduced, in addition, the position of the electronic device is determined by the electronic device and not determined by the position server, and the data volume required by positioning is relatively small, so that the complexity of positioning calculation is reduced, and further the efficiency of positioning is improved.

The embodiment of the present application provides a location service device, which may be an electronic device 100. Specifically, the location service device is configured to perform the steps of the location service method shown in fig. 2A. The positioning service device provided by the embodiment of the application can comprise modules corresponding to the corresponding steps.

Fig. 4 shows a schematic diagram of a possible structure of the location service device involved in the above embodiment. As shown in fig. 4, the location service apparatus includes a receiving unit 41 and a location service unit 42, wherein:

a receiving unit 41, configured to receive a first data frame broadcasted by the first base station and receive a second data frame broadcasted by the second base station, where the first data frame carries a position of the first base station, the second data frame carries a position of the second base station that broadcasts the second data frame, and broadcast times of different data frames are different;

a location service unit 42, configured to determine a location of the electronic device based on at least two receiving time differences, the location of the first base station and/or the location of the second base station, where the receiving time differences are used to represent time differences between two data frames arriving at the electronic device.

In an implementation manner of the present application, the location service apparatus further includes a first determining unit 43.

The first determining unit 43 is configured to determine time differences between the receiving time of the first data frame and the receiving time of each second data frame, so as to obtain the at least two receiving time differences.

Or, the first determining unit 43 is configured to determine a time difference between receiving times of any two data frames, so as to obtain the at least two receiving time differences.

In an implementation manner of the present application, in determining the location of the electronic device based on at least two receiving time differences, the location of the first base station and/or the location of the second base station, the positioning service unit 42 is specifically configured to:

In an implementation of the present application, in determining the location of the electronic device based on the at least two corrected receiving time differences, the location of the first base station and/or the location of the second base station, the positioning service unit 42 is specifically configured to:

In an implementation manner of the present application, the positioning model is a hyperbolic function, and in terms of determining the location of the electronic device based on the at least two positioning models, the positioning service unit 42 is specifically configured to:

Optionally, the location service unit 42 is further configured to determine a central point based on the N intersection points and determine a value of the central point as the position of the electronic device if N is greater than 1.

In an implementation manner of the present application, a distance between any two of the electronic device, the first base station, and the second base station is less than or equal to a set distance.

In one implementation of the present application, the location service apparatus further includes a second determining unit 44 and a control unit 45;

a second determination unit 44 for determining a location validity period based on the location of the electronic device;

a control unit 45 for starting a timer;

and the positioning service unit 42 is further configured to re-determine the position of the electronic device when the timing duration of the timer is greater than or equal to the position validity duration.

In an implementation manner of the present application, in determining the location validity duration based on the location of the electronic device, the second determining unit 44 is specifically configured to:

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. Of course, the positioning service apparatus provided in the embodiments of the present application includes, but is not limited to, the above modules, for example: the location service may also include a storage unit 46. The memory unit 46 may be used to store program codes and data for the location service device.

The embodiment of the present application provides a location service apparatus, which may be a base station 200. Specifically, the location service apparatus is configured to perform the steps of the location service method shown in fig. 3. The positioning service device provided by the embodiment of the application can comprise modules corresponding to the corresponding steps.

Fig. 5 shows a schematic diagram of a possible structure of the location service device involved in the above embodiment. As shown in fig. 5, the location service apparatus includes a receiving unit 51 and a transmitting unit 52, wherein:

a receiving unit 51, configured to receive a first data frame broadcasted by the first base station and receive a second data frame broadcasted by the second base station, where the first data frame carries a position of the first base station, the second data frame carries a position of the second base station that broadcasts the second data frame, and broadcast times of different data frames are different;

a sending unit 52, configured to determine the location of the electronic device based on at least two receiving time differences, the location of the first base station and/or the location of the second base station, where the receiving time differences are used to represent time differences of arrival of two data frames at the electronic device.

In an implementation manner of the present application, the positioning service apparatus further includes a determining unit 53;

a determining unit 53, configured to determine the target delay time based on the timeslot number of the second base station.

In one implementation manner of the present application, the positioning service apparatus further includes a timeslot configuration unit 54;

and a time slot configuration unit 54, configured to implement configuration of its own time slot number by listening to a data frame of at least one base station in the location service system.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. Of course, the positioning service apparatus provided in the embodiments of the present application includes, but is not limited to, the above modules, for example: the location service arrangement may also comprise a storage unit 55. The memory unit 55 may be used for storing program codes and data of the location service device.

In the case of using an integrated unit, a schematic structural diagram of a location service device provided in an embodiment of the present application is shown in fig. 6. In fig. 6, the location service apparatus includes: a processing module 61 and a communication module 62. The processing module 61 is used for controlling and managing the actions of the positioning service device, for example, the steps executed by the positioning service unit 42, the first determining unit 43, the second determining unit 44 and the control unit 45, or the steps executed by the determining unit 53 and the time slot configuring unit 54; and/or other processes for performing the techniques described herein. The communication module 62 is used to support interaction between the location service device and other devices. As shown in fig. 6, the location service device may further include a storage module 63, where the storage module 63 is used to store program codes and data of the location service device, for example, contents stored in the storage unit 46 or the storage unit 55.

The Processing module 61 may be a Processor or a controller, and may be, for example, a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication module 62 may be a transceiver, an RF circuit or a communication interface, etc. The storage module 63 may be a memory.

All relevant contents of each scene related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, the computer program enabling a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes an electronic device.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising an electronic device.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A positioning service method is applied to electronic equipment in a positioning service system, the positioning service system further comprises a first base station and at least two second base stations; the method comprises the following steps:

2. The method of claim 1, further comprising:

3. The method of claim 1, further comprising:

4. The method according to any of claims 1-3, wherein determining the location of the electronic device based on at least two reception time differences, the location of the first base station and/or the location of the second base station comprises:

5. The method of claim 4, wherein determining the location of the electronic device based on the at least two corrected differences in reception times, the location of the first base station, and/or the location of the second base station comprises:

6. The method of claim 5, wherein the positioning model is a hyperbolic function, and wherein the determining the location of the electronic device based on the at least two positioning models comprises:

7. The method of claim 6, further comprising:

8. The method of any one of claims 1-7, wherein a distance between any two of the electronic device, the first base station, and the second base station is less than or equal to a set distance.

9. The method according to any of claims 1-8, wherein the application running in the foreground of the electronic device is a settings application.

10. The method of claim 9, wherein after determining the location of the electronic device, the method further comprises:

starting a timer;

11. The method of claim 10, wherein determining a location validity period based on the location of the electronic device comprises:

12. A location service system is characterized by comprising electronic equipment, a first base station and at least two second base stations;

13. The method of claim 12, wherein in broadcasting the second data frame, the second base station is specifically configured to: receiving the first data frame; and broadcasting the second data frame after receiving the target delay of the first data frame.

14. The system according to claim 12 or 13, wherein the electronic device is further configured to determine a time difference between the receiving time of the first data frame and the receiving time of each of the second data frames, respectively, to obtain the at least two receiving time differences.

15. The system according to claim 12 or 13, wherein the electronic device is further configured to determine a time difference between the receiving times of any two data frames, resulting in the at least two receiving time differences.

16. The system according to any of claims 12-15, wherein in determining the location of the electronic device based on at least two reception time differences, the location of the first base station and/or the location of the second base station, the electronic device is specifically configured to:

17. The system according to claim 16, wherein in determining the location of the electronic device based on the at least two corrected differences in reception time, the location of the first base station and/or the location of the second base station, the electronic device is specifically configured to:

18. The system of claim 17, wherein the positioning model is a hyperbolic function, and wherein the electronic device is specifically configured to, in determining the location of the electronic device based on the at least two positioning models: calculating the intersection point of any two hyperbolic functions to obtain N intersection points, wherein N is a positive integer;

19. The system of claim 18, wherein the electronic device is further configured to determine a center point based on the N intersection points and determine a value of the center point as the location of the electronic device if N is greater than 1.

20. A location service method is applied to a second base station in a location service system, the location service system also comprises a first base station and electronic equipment, and the number of the second base stations in the location service system is at least two; the method comprises the following steps:

21. The method of claim 20, further comprising: and determining the target delay based on the time slot number of the second base station.

22. The method of claim 21, further comprising: and monitoring a data frame of at least one base station in the positioning service system to realize the configuration of the time slot number of the positioning service system.

23. A positioning service device is applied to electronic equipment in a positioning service system, the positioning service system further comprises a first base station and at least two second base stations; the device comprises:

24. A positioning service device is applied to a second base station in a positioning service system, the positioning service system also comprises a first base station and electronic equipment, and the number of the second base stations in the positioning service system is at least two; the device comprises:

25. An electronic device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-11.

26. A base station comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 20-22.

27. A computer-readable storage medium, characterized by storing a computer program for electronic data exchange; wherein the computer program causes a computer to perform the method of any one of claims 1-11 or the computer program causes a computer to perform the method of any one of claims 20-22.