WO2022148036A1

WO2022148036A1 - Close contact processing method and apparatus, electronic device, and storage medium

Info

Publication number: WO2022148036A1
Application number: PCT/CN2021/116618
Authority: WO
Inventors: 宋轩; 陈达寅; 张浩然; 赵奕丞; 颜秋阳; 江亦凡
Original assignee: 南方科技大学
Priority date: 2021-01-08
Filing date: 2021-09-06
Publication date: 2022-07-14
Also published as: CN112735603B; CN112735603A

Abstract

Disclosed are a close contact processing method and apparatus, an electronic device, and a storage medium. The method comprises: on the basis of near-field communication technology, obtaining second equipment status information sent by a second user equipment (UE), and detecting inter-equipment near-field communication signal strength information between a first UE and the second UE (S110); according to first equipment status information of the first UE, the second equipment status information, and the inter-equipment near-field communication strength information, determining the inter-equipment contact status between the first UE and the second UE (S120); and according to the inter-equipment contact status, determining whether a close contact event occurs between a first UE holder and a second UE holder (S130). By means of the described method, the effect of reducing errors and interference and more accurately determining the close contact status between users by using distance can be achieved.

Description

Close contact processing method, device, electronic equipment and storage medium

technical field

Embodiments of the present invention relate to the technical field of personnel prevention and control, and in particular, to a close contact processing method, device, electronic device, and storage medium.

Background technique

Under the current epidemic prevention and control situation, people's cross-city travel will be bound to their personal security code. When a confirmed patient appears, close contacts will be found for nucleic acid testing based on the patient's travel records within 14 days. This kind of epidemic prevention method has a large workload for the government, and it is not easy to check in place. When encountering people who conceal their whereabouts and refuse to report, it is easy to cause the overall epidemic prevention work to be very unsatisfactory due to the omission of individual patients. And at present, GPS and Bluetooth technology are mainly used to measure distance and determine close contact. The advantage of GPS is that it can be located all-weather and has a wide coverage, but when it is applied to determine close contact between people, its error is close to 10 meters. It's hard to make a difference. And GPS is limited to positioning in outdoor open areas. When the application site is moved to indoors, the GPS signal will be isolated and invalid. In terms of Bluetooth technology ranging, the method of distinguishing distance based on pure Bluetooth signal strength may often be interfered by various environmental factors, resulting in a decrease in the accuracy of short-range communication technology ranging. Therefore, finding ways to avoid the interference of these factors and making Bluetooth ranging more accurate has become a difficult problem to be solved at present.

technical problem

The embodiments of the present invention provide a close contact processing method, device, electronic device and storage medium, which can achieve the technical effect of reducing errors and interference and more accurately judging the close contact state between users by distance.

technical solutions

In a first aspect, an embodiment of the present invention provides a close contact processing method, comprising:

Based on the short-range communication technology, obtain the second device status information sent by the second user equipment, and detect the inter-device near field communication signal strength information between the first user equipment and the second user equipment;

Determine the inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information and the inter-device near field communication strength information of the first user equipment;

According to the inter-device contact state, it is determined whether a close contact event occurs between the first user equipment holder and the second user equipment holder.

In a second aspect, an embodiment of the present invention also provides a close contact processing device, the device comprising:

an information acquisition module, configured to acquire the second device state information sent by the second user equipment based on the short-range communication technology, and detect the signal strength information of the inter-device near field communication between the first user equipment and the second user equipment;

a state determination module, configured to determine the inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information and the inter-device near field communication strength information of the first user equipment;

The event determination module is configured to determine whether a close contact event occurs between the first user equipment holder and the second user equipment holder according to the contact state between the devices.

In a third aspect, an embodiment of the present invention also provides an electronic device, including:

one or more processors;

a storage device for storing one or more programs;

The one or more programs are executed by the one or more processors, such that the one or more processors implement the close contact processing method as provided in any of the embodiments of the present invention.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the close contact processing method provided in any embodiment of the present invention.

beneficial effect

An embodiment of the present invention provides a close contact processing method. Based on the short-range communication technology, the second device status information sent by the second user equipment is acquired, and the device-to-device proximity between the first user equipment and the second user equipment is detected. field communication signal strength information; then determine the inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information and the inter-device near field communication strength information of the first user equipment ; Finally, according to the inter-device contact state, determine whether a close contact event occurs between the first user equipment holder and the second user equipment holder.

By adopting the technical solution of the present application, the near-field communication signal strength information is no longer used alone for inter-device ranging, and at the same time, it is also considered that the device status information of the local device and the opposite end device will cause interference factors to the near-field communication signal, so as to avoid near-field communication signals. The field communication signal strength will be weakened or enhanced without knowing it, and the ranging scheme of the near field communication signal strength can be corrected from multiple dimensions, so as to reduce the ranging error and interference, and more accurately judge the close contact state between users. Effect.

The above-mentioned content of the invention is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented in accordance with the content of the description, and in order to make the above-mentioned and other purposes, features and advantages of the present invention more obvious and easier. It is understood that the specific embodiments of the present invention are exemplified below.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments taken with reference to the following drawings. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

Fig. 1 is a flow chart of a close contact processing method provided in Embodiment 1 of the present application;

2 is a flowchart of another close contact processing method provided in Embodiment 2 of the present application;

FIG. 3 is a flow chart of user equipment interaction provided by an embodiment of the present application;

4 is a schematic structural diagram of the close contact processing device provided in Embodiment 3 of the present application;

FIG. 5 is a schematic structural diagram of an electronic device according to Embodiment 4 of the present application.

Embodiments of the present invention

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

Before discussing the exemplary embodiments in greater detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts various operations (or steps) as a sequential process, many of the operations may be performed in parallel, concurrently, or concurrently. Additionally, the order of operations can be rearranged. The process may be terminated when its operation is complete, but may also have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, subroutines, and the like.

Example 1

FIG. 1 is a flowchart of a close contact processing method provided in Embodiment 1 of the present invention. The method can be applied to the situation of judging whether a user is in close contact based on the short-range communication technology. The method can be executed by a close contact processing device. The apparatus may be implemented in software and/or hardware, and may be integrated in electronic equipment. As shown in Figure 1, the close contact processing method in this embodiment includes the following steps:

S110. Acquire second device status information sent by the second user equipment based on the short-range communication technology, and detect signal strength information of inter-device near field communication between the first user equipment and the second user equipment.

Wherein, based on the short-range communication technology, the first user equipment obtains the second device status information sent by the second user equipment, the short-range communication technology may be Bluetooth communication technology, and the user equipment may be a mobile phone, a tablet computer, etc. that can realize short-range communication. For a mobile device, the device status information may be screen activation status, device model and device sensor parameter information, and the method for sending the device status information may be Bluetooth broadcast transmission technology. The first user equipment detects inter-device near field communication signal strength information between the first user equipment and the second user equipment, where the near field communication signal strength information may be Bluetooth signal strength supported by Bluetooth technology. Exemplarily, in the field of epidemic prevention and control, Bluetooth broadcast technology can be used to determine the close contact between two mobile devices, and then determine the risk of illness of the first user device holder, so as to achieve rapid and undifferentiated epidemic prevention and control. Work.

In an optional solution of this embodiment, it may be combined with one or more optional solutions in this embodiment. Wherein, based on the short-range communication technology, acquiring the second device status information sent by the second user equipment may include the following steps A1-A2:

Step A1: Scan and receive a Bluetooth broadcast packet sent by a second user equipment according to a dynamically set sending and receiving switching frequency; wherein the sending and receiving switching frequency is dynamically determined according to the disease risk of the first user equipment holder.

Step A2: Obtain second device status information sent by the second user equipment by parsing the Bluetooth broadcast packet received from the second user equipment.

The first user equipment dynamically sets the frequency of sending and receiving Bluetooth broadcast packets according to the disease risk of the first user equipment holder, scans and receives the Bluetooth broadcast packets sent by the second user equipment, and parses the bluetooth broadcast packets sent by the second user equipment. The Bluetooth broadcast packet obtains the state information of the second device. Exemplarily, the highest disease risk value of the user equipment holder can be set to 900 and the lowest to 0, the broadcast time of the mobile device held by the user=10*risk value/3 seconds, and the scan time=300 seconds-broadcast time , optionally, it can be set that when the broadcast time of the second user equipment is greater than 5 seconds, the device data information will be re-acquired every 5 seconds, and the device status information of the second user equipment will be updated in real time. When the device status information of the second user is received, the device data information of the local machine is also reacquired. When the disease risk value of the user equipment holder is 0, the broadcast time of the user is 0, and the scanning time is 5 minutes (300 seconds); when the disease risk value of the user equipment holder is 900, the broadcast time of the user is 0. The time is 5 minutes and the scan time is 0. The advantage of this setting is that the low-risk users can reduce the broadcast time and increase the scan time, so that the high-risk users can reduce the scan time and increase the broadcast time. However, users with high risk value and high probability of disease need to spend more time sending broadcast packets to remind surrounding users, so as to achieve the effect of real-time and accurate epidemic prevention and control.

Using the above technical solution, the risk value is set for the original high-risk users by storing and updating the user's travel, medical treatment and contact data in the server, and then the short-range communication transmission and reception is determined by the disease risk value of the user equipment holder. The frequency of information, so that its own device can obtain the device status information of other devices around it more frequently, so as to know whether there is close contact with the holder of the high-risk user device in time, so as to achieve high-efficiency epidemic monitoring. Control, to avoid the situation where users inadvertently come into contact with infected patients and cannot be informed in time.

In an optional solution of this embodiment, it may be combined with one or more optional solutions in this embodiment. The device status information includes at least one of screen activation status information of the user equipment, model information of the user equipment, and sensor data information collected by sensors of the user equipment. Among them, screen activation status information, device model information and various sensor data may have a certain correlation with the judgment of close contact. Optionally, the device status information of the user equipment needs to collect as much data information of various sensors on the user equipment as possible, so that the interference factors affecting the signal strength of the near field communication can be analyzed from more dimensions, and the distance measurement can be performed later. In the process, these interference factors are introduced to assist the ranging scheme of near-field communication signal strength, and improve the accuracy and reliability of ranging.

S120. Determine an inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information, and the inter-device near field communication strength information of the first user equipment.

The first user equipment may determine the inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information, and the inter-device near field communication strength information of the first user equipment , the near-field communication strength information can be the Bluetooth signal strength, and the contact state between the devices can be whether they are in close contact range, international general regulations; for example, if the direct distance between two people is within 6 feet (182.88cm), it can be said to be in range of close contact.

S130. Determine whether a close contact event occurs between the first user equipment holder and the second user equipment holder according to the inter-device contact state.

The server determines whether a close contact event occurs between the first user equipment holder and the second user equipment holder according to the contact state between the devices. A close contact event is internationally defined as accumulative close contact between the two people within 24 hours. A state for more than 15 minutes is defined as a close contact event.

In an optional solution of this embodiment, it may be combined with one or more optional solutions in this embodiment. Wherein, determining whether a close contact event occurs between the first user equipment holder and the second user equipment holder may include steps B1-B2:

Step B1: Calculate the duration that the two user equipments are in the close contact state within a preset time according to the inter-device contact state and the close contact judgment timestamp information between the first user equipment and the second user equipment.

Step B2: Update the disease risk value of the first user equipment holder according to the duration of the close contact state of the two user equipments.

Among them, the server will calculate the duration of the close contact between the two user equipment within 24 hours according to the duration of the close contact between the two user equipment and the time stamp information of the close contact judgment, and according to the duration, the user equipment holder's The risk value for disease is updated.

Using the above technical solution, the risk value of the device user is updated according to the duration of the close connection state, so as to passively complete the epidemic prevention and control work, and also provide users with the technical effect of viewing their risk value in real time.

In the technical solution of this embodiment, the second device state information sent by the second user equipment is acquired based on the short-range communication technology, and the signal strength information of the inter-device near field communication between the first user equipment and the second user equipment is detected; Determine the inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information and the inter-device near field communication strength information of the first user equipment; according to the inter-device contact state, Determine whether a close contact event occurs between the first user equipment holder and the second user equipment holder, so as to reduce errors and interference, more accurately judge the close contact state between users through distance, and update the user equipment holder in real time The risk value of the disease is provided to the user to view the technical effect.

Embodiment 2

FIG. 2 is a flowchart of another close contact processing method provided in the second embodiment of the present application. The embodiments of the present invention further optimize the foregoing embodiments on the basis of the foregoing embodiments, and the embodiments of the present invention may be combined with each optional solution in one or more of the foregoing embodiments. As shown in Figure 2, the close contact processing method provided in the embodiment of the present invention may include the following steps:

S210. Acquire second device status information sent by the second user equipment based on the short-range communication technology, and detect signal strength information of inter-device near field communication between the first user equipment and the second user equipment.

S220. Input the first device state information, the second device state information, and the inter-device near field communication signal strength information of the first user equipment into a pre-trained closeness judgment model.

The first user equipment inputs the state information of the first user equipment, the state information of the second device, and the signal strength information of the incoming communication between devices into the pre-trained closeness judgment model, and the closeness judgment model may be completed by training a large number of samples As shown in the user equipment interaction flow chart in Figure 3, the information is sent from the second user equipment to the first user equipment (this machine) to receive information, and then the model is input to judge whether it conforms to the close distance judgment, and choose to discard the data or upload it. Contacts are logged to the server. Exemplarily, the existing method for measuring distance using Bluetooth signal strength (Received Signal Strength Indication, RSSI) is through the formula: d = 10^(abs(RSSI) - a / (10 * n)) to calculate the distance d. Where a is the signal strength at a distance of one meter from the Bluetooth device, and n is the environmental attenuation factor. It can be seen that when relying on this formula to calculate, first the value of a will change due to different mobile phone models, and secondly, if the value of n is simply a constant, the result will become very unstable. Because in the process of Bluetooth transmission, various factors including the orientation of the Bluetooth transmitting device, the obstruction of the obstacle, and the receiving efficiency of the receiving device will affect the final received Bluetooth signal strength, so the process of Bluetooth ranging cannot be simply used. Such a formula calculates. Since the interference of various environmental factors cannot be analyzed quantitatively and qualitatively, it is beneficial to when the mobile phone screen is in an inactive state. At this time, the mobile phone and the mobile phone have a high probability of being blocked by obstacles such as clothing, bags, and human bodies, but the interference cannot be determined. Therefore, the technical solution of this embodiment adopts deep learning to obtain a relatively stable and accurate distance monitoring method after training with a large number of data sets for related variables such as screen activation state, mobile phone acceleration, and mobile phone model.

S230. Output the inter-device contact state between the first user equipment and the second user equipment through the close contact judgment model; wherein the inter-device contact state includes: the two user equipments are within a close contact distance range and the two user devices are not within close contact distance.

Among them, the close contact judgment model can be a binary classifier, which analyzes the input samples according to the training results, and outputs 0 or 1, that is, the non-close contact state and the close contact state.

In an optional solution of this embodiment, it may be combined with one or more optional solutions in this embodiment. Wherein, inputting the first device state information of the first user equipment, the second device state information and the near field communication signal strength information between devices into the pre-trained closeness judgment model may include steps C1-C2:

Step C1, setting the close contact scene and the non-close contact scene according to the definition of the close contact distance, collect at least two device states of the user equipment in different scenarios, and add the corresponding scene labels; the scene labels are used to represent whether it is within the range of the close contact distance. Inside.

Step C2: Perform correlation analysis on each device state and the scene label, and select at least one device state with the highest correlation degree with the scene label to train to obtain a close connection judgment model.

Among them, the close contact scene and the non-close contact scene can be set according to the close contact distance definition in advance, at least two kinds of device status information of the user equipment in different scenarios are collected, and the corresponding scene label (close contact or non-close contact) is added to each device status information, The correlation degree analysis is performed on each device state and the scene label, and at least one device state with the highest correlation degree with the scene label is selected to train to obtain the closeness judgment model.

By adopting the above technical solution, by setting contact and non-contact scenarios, detecting and labeling the device state information from the corresponding scenarios, and selecting at least one device state with the highest correlation degree to train the model through correlation analysis, the training model of the closeness judgment model is improved. The technical effect of efficiency.

S240. Determine whether a close contact event occurs between the first user equipment holder and the second user equipment holder according to the inter-device contact state.

In the technical solution of this embodiment, the current tightness state is determined by inputting the acquired first user equipment state data information and the second user equipment state data information into the trained tightness judgment model, and the tightness and non-closeness scenarios are set Using labeled samples to train the model achieves the technical effect of improving the training efficiency of the model for close connection judgment and more accurately judging the contact state between devices.

Embodiment 3

FIG. 4 is a schematic structural diagram of a close contact processing device provided in Embodiment 3 of the present invention. The apparatus may be suitable for judging whether the user is in close contact based on the short-range communication technology, and the apparatus may be implemented by software and/or hardware, and integrated into an electronic device. The device is used to realize the close contact processing method provided in the above embodiment. As shown in Figure 4, the close contact processing device provided in this embodiment includes:

an information acquisition module 410, configured to acquire the second device status information sent by the second user equipment based on the short-range communication technology, and detect the near-field communication signal strength information between the devices between the first user equipment and the second user equipment;

The state determination module 420 is configured to determine the inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information and the inter-device near field communication strength information of the first user equipment ;

The event determination module 430 is configured to determine whether a close contact event occurs between the first user equipment holder and the second user equipment holder according to the contact state between the devices.

On the basis of the foregoing embodiment, optionally, the information acquisition module 410 is further configured to:

Scanning and receiving the Bluetooth broadcast packet sent by the second user equipment according to the dynamically set switching frequency of sending and receiving; wherein the switching frequency of sending and receiving is dynamically determined according to the disease risk of the holder of the first user equipment;

By parsing the Bluetooth broadcast packet received from the second user equipment, the second device state information sent by the second user equipment is obtained by parsing.

On the basis of the above-mentioned embodiment, optionally, the state determination module 420 includes a model training unit for:

inputting the first device state information of the first user equipment, the second device state information and the near field communication signal strength information between devices into a pre-trained closeness judgment model;

On the basis of the above-mentioned embodiment, optionally, the state determination module 420 includes a state output unit for:

outputting an inter-device contact state between the first user equipment and the second user equipment through the closeness judgment model;

The inter-device contact state includes: the two user equipments are within the close contact distance range and the two user equipments are not within the close contact distance range.

The device status information includes at least one of user equipment screen activation status information, user equipment model information, and sensor data information collected by user equipment sensors.

On the basis of the foregoing embodiment, optionally, the state determination module 420 is further configured to:

Set the close contact scene and the non-close contact scene according to the definition of the close contact distance, collect at least two device states of the user equipment in different scenarios, and add the corresponding scene tags; the scene tags are used to indicate whether they are within the close contact distance range;

The correlation degree analysis is performed on each device state and the scene label, and at least one device state with the highest correlation degree with the scene label is selected to train to obtain the closeness judgment model.

On the basis of the foregoing embodiment, optionally, the event determination module 430 is further configured to:

According to the inter-device contact state between the first user equipment and the second user equipment and the time stamp information for the close connection judgment, calculate the duration that the two user equipments are in the close contact state within a preset time;

The disease risk value of the first user equipment holder is updated according to the duration of the close contact state of the two user equipments.

Embodiment 4

FIG. 5 is a schematic structural diagram of an electronic device according to Embodiment 4 of the present application. The embodiments of the present application provide an electronic device, in which the close contact processing apparatus provided by the embodiments of the present application can be integrated. As shown in FIG. 5 , this embodiment provides an electronic device 500, which includes: one or more processors 520; and a storage device 510 for storing one or more programs, when the one or more programs are The one or more processors 520 execute, so that the one or more processors 520 implement the close contact processing method provided by the embodiments of the present application, and the method includes:

Of course, those skilled in the art can understand that the processor 520 also implements the technical solution of the close contact processing method provided by any embodiment of the present application.

The electronic device 500 shown in FIG. 5 is only an example, and should not impose any limitations on the functions and scope of use of the embodiments of the present application.

As shown in FIG. 5 , the electronic device 500 includes a processor 520 , a storage device 510 , an input device 530 and an output device 540 ; the number of processors 520 in the electronic device may be one or more, and one processor 520 is used in FIG. 5 . For example, the processor 520 , the storage device 510 , the input device 530 and the output device 540 in the electronic device may be connected by a bus or other means, and the connection by the bus 550 is taken as an example in FIG. 5 .

As a computer-readable storage medium, the storage device 510 may be used to store software programs, computer-executable programs, and module units, such as program instructions corresponding to the close contact processing method in the embodiments of the present application.

The storage device 510 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Additionally, storage device 510 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some examples, storage device 510 may further include memory located remotely from processor 520, which may be connected through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The input device 530 may be used to receive input numbers, character information or voice information, and generate key signal input related to user settings and function control of the electronic device. The output device 540 may include electronic devices such as a display screen, a speaker, and the like.

The electronic device provided by the embodiments of the present application can achieve the technical effect of reducing errors and interference, and more accurately judging the state of close contact between users through distance.

Embodiment 5

Embodiment 5 of the present invention provides a computer-readable medium on which a computer program is stored, and when the program is executed by a processor, is used to execute a close contact processing method, and the method includes:

Optionally, when the program is executed by the processor, it can also be used to execute the close contact processing method provided in any embodiment of the present invention.

The computer storage medium in the embodiments of the present invention may adopt any combination of one or more computer-readable mediums. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above. More specific examples (non-exhaustive list) of computer readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (Read Only Memory, ROM), Erasable Programmable Read Only Memory (EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination of the above . A computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device.

A computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave, with computer-readable program code embodied thereon. Such propagated data signals may take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .

Program code embodied on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations of the present invention may be written in one or more programming languages, including object-oriented programming languages—such as Java, Smalltalk, C++, but also conventional Procedural programming language - such as the "C" language or similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer, or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (eg, using an Internet service provider to via Internet connection).

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention. The scope is determined by the scope of the appended claims.

Claims

A close contact processing method, applied to a first user equipment, characterized in that, comprising:

Based on the short-range communication technology, obtain the second device status information sent by the second user equipment, and detect the inter-device near field communication signal strength information between the first user equipment and the second user equipment;

Determine the inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information and the inter-device near field communication strength information of the first user equipment;

According to the inter-device contact state, it is determined whether a close contact event occurs between the first user equipment holder and the second user equipment holder.
The method according to claim 1, wherein obtaining the second device status information sent by the second user equipment based on the short-range communication technology, comprising:

Scanning and receiving the Bluetooth broadcast packet sent by the second user equipment according to the dynamically set switching frequency of sending and receiving; wherein the switching frequency of sending and receiving is dynamically determined according to the prevention and control risk of the holder of the first user equipment;

By parsing the Bluetooth broadcast packet received from the second user equipment, the second device state information sent by the second user equipment is obtained by parsing.
The method according to claim 1, characterized in that determining the relationship between the first user equipment and the second user equipment according to the first device state information, the second device state information and the inter-device near field communication strength information of the first user equipment Device-to-device contact status between devices, including:

inputting the first device state information of the first user equipment, the second device state information and the near field communication signal strength information between devices into a pre-trained closeness judgment model;

outputting an inter-device contact state between the first user equipment and the second user equipment through the closeness judgment model;

The inter-device contact state includes: the two user equipments are within the close contact distance range and the two user equipments are not within the close contact distance range.
The method according to any one of claims 1-3, wherein the device status information includes at least one of user equipment screen activation status information, user equipment model information, and sensor data information collected by user equipment sensors.
The method according to claim 3, wherein the method further comprises:

Set the close contact scene and the non-close contact scene according to the definition of the close contact distance, collect at least two device states of the user equipment in different scenarios, and add the corresponding scene tags; the scene tags are used to indicate whether they are within the close contact distance range;

The correlation degree analysis is performed on each device state and the scene label, and at least one device state with the highest correlation degree with the scene label is selected to train to obtain the closeness judgment model.
The method according to claim 1, wherein determining whether a close contact event occurs between the first user equipment holder and the second user equipment holder according to the inter-device contact state, comprising:

According to the inter-device contact state between the first user equipment and the second user equipment and the time stamp information for the close connection judgment, calculate the duration that the two user equipments are in the close contact state within a preset time;

The prevention and control risk value of the holder of the first user equipment is updated according to the duration that the two user equipments are in a state of close contact.
A kind of close contact processing device, it is characterized in that, described device comprises:

an information acquisition module, configured to acquire the second device state information sent by the second user equipment based on the short-range communication technology, and detect the signal strength information of the inter-device near field communication between the first user equipment and the second user equipment;

a state determination module, configured to determine the inter-device contact state between the first user equipment and the second user equipment according to the first device state information, the second device state information and the inter-device near field communication strength information of the first user equipment;

The event determination module is configured to determine whether a close contact event occurs between the first user equipment holder and the second user equipment holder according to the contact state between the devices.
The device according to claim 7, wherein the state determination module comprises:

a model training unit, configured to input the first device state information of the first user equipment, the second device state information and the near field communication signal strength information between devices into a pre-trained closeness judgment model;

a state output unit, configured to output the inter-device contact state between the first user equipment and the second user equipment through the closeness judgment model;

The inter-device contact state includes: the two user equipments are within the close contact distance range and the two user equipments are not within the close contact distance range.
An electronic device, comprising:

one or more processors;

a storage device for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the close contact processing method of any one of claims 1-6.
A computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the close contact processing method according to any one of claims 1-6 is implemented.