KR102378684B1 - Diffusion prevention method for pandemic disease, pandemic disease management server and diffusion prevention system for pandemic disease - Google Patents

Abstract

The present invention includes the steps of collecting one or more signal information obtainable from a portable terminal at a first time, matching and storing at a first time, collecting one or more signal information obtainable from a portable terminal at a second time, and collecting one or more signal information obtainable from a portable terminal at a second time matching and storing; receiving information on the movement route of a confirmed person from an infectious disease management server; and calculating the possibility of exposure to an infectious disease based on information on the movement route of the confirmed person, signal information at a first time, and signal information at a second time; , To a method for preventing the spread of an infectious disease, wherein one or more signal information obtainable from a portable terminal includes signal information from a Wi-Fi signal.

Description

A method for preventing the spread of an infectious disease, an infectious disease management server, and a system for preventing the spread of an infectious disease

The present invention relates to a method for preventing the spread of an infectious disease, an infectious disease management server, and a system for preventing the spread of an infectious disease, and more specifically, tracking and monitoring an infectious disease using black box information composed of indoor and outdoor signal information that can be sensed by a portable terminal such as a smartphone and a method for preventing the spread of an infectious disease, an infectious disease management server, and a system for preventing the spread of an infectious disease.

The 2019 COVID-19 outbreak occurred, and as of 2020, COVID-19 is spreading worldwide. Unlike the known infectious diseases, COVID-19 has a very high transmission power, so governments around the world are banning movement between countries and even within their own countries. As a result, schools have been delayed, workplaces have been closed, factories have been shut down, and most shops have been closed worldwide.

It is known that Corona 19 (COVID-19) can infect not only direct contacts but also staggered contacts through droplets even in asymptomatic conditions. It is known that the Corona 19 virus can survive for several hours to several tens of hours on objects such as handles, and it can float for several minutes in the air through droplets.

In order to calm Corona 19, it is necessary to find a large number of confirmed cases in a short time using a diagnostic kit. In addition, there is a need for measures to prevent the spread of the virus that can protect uninfected people from the COVID-19 infectious disease and isolate them in advance at the time of presumed contact. In order to prevent the spread of COVID-19, it is necessary to identify the movement of confirmed patients as quickly as possible, and a method is needed to quickly check the overlap of the movement of non-confirmed persons compared to that of non-confirmed persons.

In order to share and confirm the movement route as quickly as possible, the movement route of the confirmed person is disclosed online (website, SNS, text message, etc.), causing problems or controversies that infringe on the privacy of the confirmed person. In addition, general non-confirmed people should guess their past (previous) movement and compare it with the confirmed person's movement to determine whether or not they have contacted the virus, but errors occur due to inaccuracy.

Diagnosis of a confirmed patient's movement is accomplished by using a questionnaire, checking where the card is used, and using GPS signal information, but there are problems such as inaccuracy in memory and inability to identify movement indoors.

As such, in order to prevent the spread of infectious diseases such as Corona 19, there is a need for a method for preventing the spread of an infectious disease, an infectious disease management server, and a system for preventing the spread of an infectious disease that can solve existing problems.

Korean Patent Laid-Open Publication No. 10-2018-0071095, "Method for providing location information and device therefor"

The present invention has been devised to solve the above problems, and provides a method for preventing the spread of an infectious disease, an infectious disease management server, and a system for preventing the spread of an infectious disease that can prevent the spread of an infectious disease using a black box function capable of monitoring the movement of a portable terminal It is intended to

In addition, the present invention provides a method for preventing the spread of an infectious disease, an infectious disease management server, and an infectious disease that can quickly determine whether an infectious disease has been exposed while preventing the problem of privacy exposure by automatically comparing the black box information mounted on the portable terminal and the movement information of the confirmed patient downloaded from the server. An object of the present invention is to provide a diffusion prevention system.

In addition, the present invention provides a method for preventing the spread of an infectious disease, an infectious disease management server, and a system for preventing the spread of an infectious disease that can determine whether or not contact with a confirmed person or a confirmed person has departed from indoors as well as outdoors using various signal sources including Wi-Fi signals Its purpose is to provide

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

A method for preventing the spread of an infectious disease according to an aspect of the present invention includes the steps of: collecting, by a portable terminal, one or more pieces of signal information obtainable from the portable terminal at a first time, matching and storing the information at the first time; collecting, by the portable terminal, the one or more signal information obtainable from the portable terminal at a second time, matching the information at the second time, and storing; receiving, by the portable terminal, information on the movement of a confirmed patient from an infectious disease management server; and calculating, by the portable terminal, the possibility of exposure to an infectious disease based on the information on the movement route of the confirmed patient, the signal information at the first time, and the signal information at the second time. The information includes signal information from a Wi-Fi signal.

In the method for preventing the spread of an infectious disease, the one or more signal information obtainable from the portable terminal further includes information on one or more of a GPS signal, a Bluetooth signal, a barometer signal, and an inertial signal.

In the method for preventing the spread of an infectious disease, the calculating of the possibility of exposure to the infectious disease comprises calculating the signal similarity by using the Wi-Fi signal information of the first time, the Wi-Fi signal information of the second time, and the Wi-Fi signal information of the movement line information of the confirmed patient. and calculates an infectious disease exposure score according to the correlation between the calculated signal similarity and the time of the Wi-Fi signal information of the portable terminal and the time of the movement information of the confirmed patient.

In the method for preventing the spread of an infectious disease, the method further comprising: outputting, by the portable terminal, the calculated infectious disease exposure score through a display, wherein the first time and the second time are set through an input interface of the portable terminal It is a time determined according to the collection period, and the Wi-Fi signal information includes one or more pairs of a wireless AP identifier and signal strength.

In the method for preventing the spread of an infectious disease, the calculating of the possibility of exposure to the infectious disease comprises a low infectious disease exposure score when the time difference is large according to the time difference between the time of the Wi-Fi signal information of the portable terminal and the time of the movement information of the confirmed patient. to calculate

In the aforementioned method for preventing the spread of an infectious disease, before collecting the one or more signal information and storing the information by matching the first time point, the method includes: receiving an input for selecting a collection period and a collection signal through an input interface of the portable terminal; Further comprising, the step of collecting the one or more signal information and matching to the second time and storing the one or more signal information according to the collection signal selection input at a second time after the lapse of the collection period from the first time to collect

In addition, a method for preventing the spread of an infectious disease according to an aspect of the present invention includes the steps of: setting, by an infectious disease management server, an isolation space for a user; periodically receiving, by an infectious disease management server, Wi-Fi fingerprint information from the user's portable terminal; monitoring, by an infectious disease management server, whether the user has departed according to a comparison between the received Wi-Fi fingerprint information and information corresponding to the quarantine space; and transmitting the departure status result information to the manager terminal.

In the method for preventing the spread of an infectious disease, the setting of the user's quarantine space includes receiving the Wi-Fi fingerprint information collected from the user's portable terminal a plurality of times and setting representative fingerprints of the plurality of Wi-Fi fingerprint information in the quarantine space is set as information corresponding to , and the Wi-Fi fingerprint information includes one or more pairs of wireless AP identifiers and signal strengths.

In the method for preventing the spread of an infectious disease, the step of monitoring whether the user departs determines whether the user leaves based on the Euclidean distance calculated between the received Wi-Fi fingerprint information and the representative fingerprint.

In addition, the download server for storing the program of the method for preventing the spread of an infectious disease according to an aspect of the present invention includes: a communication unit for receiving a download request through the Internet and transmitting a program corresponding to the download request through the Internet; A storage unit for storing a plurality of programs, comprising: a storage unit for storing a program for performing the method of claim 1 for preventing the spread of an infectious disease; and a control unit configured to transmit, to the communication unit, the program for performing the method for preventing the spread of the infectious disease stored in the storage unit according to the download request received through the communication unit.

In addition, an infectious disease management server for preventing the spread of an infectious disease according to an aspect of the present invention includes a communication unit for transmitting and receiving data through the Internet; a storage unit for storing a plurality of confirmed patient movement information; and a control unit that transmits the movement line information of the confirmed patient stored in the storage unit to the portable terminal in response to a request for downloading movement information from the portable terminal through the communication unit, wherein the information on the movement line of the confirmed patient is the portable terminal of the confirmed patient. It is possible to calculate the possibility of exposure to infectious diseases by comparing one or more pieces of information composed from the Wi-Fi signal information collected by the terminal with the signal information collected from the portable terminal that has requested a download, including a plurality of collection times.

In the infectious disease management server, the control unit generates location information using the Wi-Fi radio map stored in the storage unit from the Wi-Fi signal information collected by the portable terminal of the confirmed patient, and uses the generated location information and the Wi-Fi signal information to the It is stored in the information on the movement route of the confirmed patient.

In addition, the system for preventing the spread of an infectious disease according to an aspect of the present invention includes the above-described infectious disease management server.

In the system for preventing the spread of an infectious disease, the Wi-Fi signal information is collected and stored at a first time and a subsequent second time, and according to the reception of the movement route information of the confirmed patient from the infectious disease management server, the information on the movement of the confirmed person and the first time It further includes; a portable terminal that calculates the possibility of exposure to an infectious disease based on the Wi-Fi signal information of the second time and the Wi-Fi signal information of the second time.

In the system for preventing the spread of infectious diseases, the portable terminal calculates the signal similarity by using the Wi-Fi signal information of the first time, the Wi-Fi signal information of the second time, and the Wi-Fi signal information of the movement line information of the confirmed patient, and the calculated signal similarity and calculate the infectious disease exposure score according to the correlation between the time of the Wi-Fi signal information of the portable terminal and the time of the movement information of the confirmed patient.

The method for preventing the spread of an infectious disease, the infectious disease management server, and the system for preventing the spread of an infectious disease according to the present invention as described above have an effect of preventing the spread of an infectious disease by using a black box function capable of monitoring the movement of a portable terminal.

In addition, the method for preventing the spread of an infectious disease, the infectious disease management server, and the infectious disease spread prevention system according to the present invention as described above prevent the problem of privacy exposure by automatically comparing the black box information installed in the portable terminal and the movement information of the confirmed patient downloaded from the server. It is effective in quickly determining whether or not exposure to infectious diseases has occurred.

In addition, the method for preventing the spread of an infectious disease according to the present invention, the infectious disease management server and the infectious disease spread prevention system according to the present invention as described above use various signal sources including Wi-Fi signals to determine whether or not there is contact with a confirmed person indoors as well as outdoors or whether the confirmed person departs. has the effect of judging

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be.

1 is a diagram illustrating an exemplary system for preventing the spread of an infectious disease.
2 is a diagram illustrating an exemplary block diagram of a portable terminal.
3 is a diagram illustrating an exemplary block diagram of an infectious disease management server.
4 is a diagram illustrating a control flow for calculating an infectious disease exposure level using black box information.
5 is a diagram illustrating an example of an image output to a portable terminal for calculating an infectious disease exposure score.
6 is a diagram illustrating a control flow for monitoring an isolated person suspected of being exposed to an infectious disease.

The above-described objects, features and advantages will become more clear through the detailed description that will be described later in detail with reference to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains can understand the technical spirit of the present invention It will be easy to implement. In addition, in the description of the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating an exemplary system for preventing the spread of an infectious disease.

The system for preventing the spread of an infectious disease in FIG. 1 includes the servers 100 and 200 and several portable/stationary terminals 300 and 400 to quickly detect contact with an infectious disease to prevent the spread of the infectious disease and prevent the escape of quarantined persons. . In the drawing, a straight line between the Internet and other components is conceptually illustrated including wired communication and wireless communication.

The system for preventing the spread of infectious diseases of FIG. 1 is configured to enable extraction of movement lines of confirmed patients, such as proximity estimation and departure from a designated location, not only outdoors but also indoors, using various signal information that can be sensed by the portable terminal 300 .

Referring briefly to the system for preventing the spread of infectious diseases with reference to FIG. 1 , the infectious disease management server 100 is a server capable of managing various types of information, data, and/or control related to an infectious disease. The infectious disease management server 100 is configured to store the movement information of the confirmed person, including at least the movement DB of the confirmed person, and use the stored movement information to know the possibility of exposure of the public to the infectious disease (hereinafter, also referred to as 'non-confirmed person'). . In addition, the infectious disease management server 100 may be configured to know whether the quarantined person has deviated from a designated location.

Here, the infectious disease management server 100 may be configured to be distributed among multiple servers or configured as a single server according to an operation function. The infectious disease management server 100 is configured to perform functions related to the spread of various infectious diseases using a built-in or external DB.

The infectious disease management server 100 will be described in more detail below with reference to FIG. 3 .

The download server 200 is a server that stores programs and can download the stored programs to the portable terminal 300 or the like. The download server 200 is configured to store an app program usable in the portable terminal 300 used by a non-confirmed person or quarantined person, etc. according to the present invention, and to transmit the stored app program to the portable terminal 300 .

The download server 200 includes a communication unit capable of data communication through the Internet, a storage unit including a mass storage medium such as a hard disk, and a control unit for performing various controls. The storage unit stores at least a program (app program) for performing the method for preventing the spread of an infectious disease according to the present invention, and the control unit receives a download request from the Internet through the communication unit and prevents the spread of an infectious disease stored in the storage unit according to the download request and transmit a program for performing the method to the Internet via the communication unit.

The download server 200 stores a plurality of app programs, transmits the app program list to the portable terminal 300, and according to the selection of the portable terminal 300, the app program of the method of preventing the spread of infectious diseases to non-confirmed persons, quarantined persons, etc. It is configured to be transmitted to the portable terminal 300 . The download server 200 may further store the quarantined escape prevention app program used in the quarantined's portable terminal 300 and transmit it to the quarantined's portable terminal 300 . The download server 200 may be a server that stores and provides app programs of a smartphone. The app program of the method of preventing the spread of infectious diseases and the quarantined escape prevention app program may have a built-in black box program module executed in the background or may be transmitted to the portable terminal 300 when a download is requested.

The portable terminal 300 is a terminal used by a user who uses the present system. One or more of the portable terminals 300 may be terminals used by quarantined persons, and the other one or more may be terminals used by non-confirmed persons (general public).

The portable terminal 300 of non-confirmed persons and quarantined persons has a communication interface 305 that can connect to a mobile communication network and the Internet, accesses the download server 200 through the Internet, downloads and stores an app program for preventing the spread of infectious diseases, It is configured to do this. The portable terminal 300 for non-confirmed persons and quarantined persons may include an application processor (AP), and may be a smartphone, a tablet PC, etc. capable of executing an application program through the AP.

The portable terminal 300 may collect black box information capable of tracking or estimating a user's location through execution of an app program (background execution) and store it therein.

The app program used in the portable terminal 300 of the non-confirmed person and the quarantined person may be different depending on the required function, but at least it is configured to execute the black box function of sensing a signal from the external environment and storing it inside. Black box information (signal information) of the portable terminal 300 of the public (non-confirmed) who is identified as a confirmed patient may be transmitted to the infectious disease management server 100 .

The portable terminal 300 will be described in more detail with reference to FIGS. 2, 4 and 5 .

The manager terminal 400 is a terminal capable of managing quarantined persons and the like. The manager terminal 400 may receive, through the infectious disease management server 100 , a message indicating whether or not the quarantined person has departed, and display it. The manager terminal 400 may be a stationary or portable terminal, for example, a personal computer, a notebook computer, a smart phone, or a tablet PC.

2 is a diagram illustrating an exemplary block diagram of the portable terminal 300 .

According to FIG. 2 , the portable terminal 300 includes an input interface 301 , a sensor module 303 , a communication interface 305 , a memory 307 , an output interface 309 , a display 311 , and a processor 313 . include FIG. 2 may show a hardware block diagram of the portable terminal 300 , and the portable terminal 300 may further include other blocks not shown in FIG. 2 . For example, the portable terminal 300 may further include a camera sensor.

Referring to the portable terminal 300 through FIG. 2 , the input interface 301 receives a user input. The input interface 301 may include a button, a touch panel, a touch pad, a microphone, and the like to receive a user input.

The sensor module 303 includes one or more sensors and generates a sensing signal by using the sensor. The sensor module 303 is configured to provide a signal sensed by each sensor, including a GPS sensor, a barometer sensor, a 3-axis accelerator sensor, a gyroscope sensor, and the like.

The communication interface 305 is an interface capable of communicating with other devices outside the portable terminal 300 . Communication interface 305 may include, for example, a Wi-Fi communication chipset (or hardware) capable of accessing the Internet via a wireless AP and a Bluetooth communication chipset (or hardware) capable of communicating with other portable devices in close proximity. It can communicate with other devices through Bluetooth communication. The communication interface 305 may further include a communication chipset (or hardware) for accessing other mobile communication networks.

The memory 307 stores various data including non-volatile memory and/or volatile memory. The memory 307 matches and stores the signal information collected through the sensor module 303 and/or the communication interface 305 to the collection time. The signal information stored in the memory 307 (in particular, the non-volatile memory) constitutes black box information as information that can estimate the movement (position) of the indoor/outdoor portable terminal 300 for each collection time.

In addition, the memory 307 stores various programs. For example, the memory 307 may further store a communication program for accessing a mobile communication network, an app program for preventing the spread of infectious diseases, an escape prevention app program for a user set as a quarantined person, and the like. The app program for preventing the spread of infectious diseases and the escape prevention app program may have a built-in black box program module or access the black box program module of the memory 307 to configure and control various signal information.

The collection and use of signal information constituting the black box information will be described in more detail with reference to FIGS. 4 and 6 .

The output interface 309 outputs various signals. The output interface 309 may output signals indicating various states of the portable terminal 300 including a speaker, a vibration sensor, an LED, and the like.

The display 311 outputs an image signal. The display 311 outputs an image signal output from the processor 313 including a display-module such as LCD or OLED to the display-module to be visually recognizable.

The processor 313 controls the portable terminal 300 . The processor 313 may include one or more execution units capable of executing instructions of the app program to execute the app program in the memory 307 to control the portable terminal 300 .

The processor 313 configures black box information including one or more sensed signal information by executing a black box program module performed in the background, etc., and performs an app program for preventing the spread of infectious diseases to process the black box information configured The exposure possibility may be calculated and outputted to the display 311 .

In addition, the processor 313 may monitor whether or not the quarantined person has departed by processing the signal information configured through the black box program module by executing the app program used to prevent departure from the isolated location.

A control flow performed in the processor 313 through an app program for preventing and monitoring the spread of an infectious disease will be described in more detail with reference to FIG. 4 .

3 is a diagram illustrating an exemplary block diagram of the infectious disease management server 100 .

According to FIG. 3 , the infectious disease management server 100 includes a communication unit 103 , a storage unit 101 , a control unit 105 , and a connection unit 107 . The block diagram of Fig. 3 is a functional block diagram showing functions. The infectious disease management server 100 shown in FIG. 3 may have various physical configurations for performing respective functions. The infectious disease management server 100 may be divided into a plurality of physical servers or may be configured separately according to assigned functions. As such, the configuration of the infectious disease management server 100 is not limited to a single server and may have various configurable server configurations.

Referring to each functional block through FIG. 3 , the communication unit 103 transmits and receives data through the Internet. The communication unit 103 may transmit/receive various data including a communication chipset for connection to a wireless LAN, a wired LAN, an optical LAN, or the like.

The storage unit 101 stores various data. The storage unit 101 may include a mass storage medium such as a hard disk to store the confirmed patient movement DB including movement information of each of several confirmed patients.

The confirmed patient movement DB consists of a plurality of entries, and each confirmed patient entry includes identification information of the confirmed patient and information on the movement route of the confirmed patient. The confirmed person identification information includes one or more data for identifying the confirmed person, for example, ID, name, address (isolated address), terminal identifier (for example, MAC address of the portable terminal 300 used by the confirmed person) and / or mobile phone number, etc.), administrator identifier, etc. The confirmed case entry can further store information such as confirmed area, confirmed date, and infection status (in treatment, cured, relapse, etc.).

The confirmed patient movement information includes a plurality of movement items. The movement line item may include information identified by the patient's portable terminal 300 or an epidemiological investigation and a time of grasping. The movement line item may be configured by an epidemiological investigator by grasping the GPS information of the confirmed patient's portable terminal 300 and the confirmed person's credit card usage history. In this case, the movement line item may be configured to include location information (address of location) grasped at the identified time. The movement item includes Wi-Fi signal information (fingerprint information) corresponding to this location information in addition to the location information identified by the epidemiological investigator, and this Wi-Fi signal information included in the movement route information of the confirmed person calculates the possibility of exposure of non-confirmed persons to infectious diseases It becomes important information provided to a portable terminal of a non-confirmed patient for this purpose.

Alternatively, the movement line item may be configured from black box information of the portable terminal 300 of the confirmed patient. For example, the movement line item may include a pair of signal information and collection time of black box information. The signal information includes at least Wi-Fi signal information obtained from the Wi-Fi signal. The signal information may further include signal information configured from a GPS signal, a barometer sensor signal, a 3-axis accelerator sensor signal, and/or a gyroscope sensor signal in addition to the Wi-Fi signal information.

The storage unit 101 may further store the Wi-Fi radio map. The Wi-Fi radio map is composed of a plurality of entries, and each entry is composed of a Wi-Fi representative fingerprint and a pair of location information. The Wi-Fi representative fingerprint includes one or more pairs of a wireless AP identifier and a signal strength, and the location information indicates a location from which the corresponding wireless AP identifier and signal strength pair is obtained (corresponding to the pair). The Wi-Fi representative fingerprint may identify wireless APs sensed at a corresponding location in an indoor (building) and specify signal strength from the corresponding wireless AP. It is possible to specify an indoor location using the Wi-Fi representative fingerprint.

The storage unit 101 may further store other programs usable in the control unit 105 .

The control unit 105 controls the infectious disease management server 100 . The control unit 105 may control the infectious disease management server 100 through one or more programs of the storage unit 101 . The control unit 105 may include one or more of a CPU, an MPU, a central processing unit, a microcomputer, and the like to execute an instruction code of a program.

Briefly looking at some control flows performed in the control unit 105 , the control unit 105 may configure the movement path information of a confirmed patient under the control of an administrator (e.g., epidemiological investigator, etc.). The control unit 105 creates a new entry in the confirmed patient movement DB, and sets the confirmed patient identification information according to the administrator's input. In addition, the control unit 105 creates and stores a plurality of movement line items indicating the confirmed patient movement line information in a new entry.

The control unit 105 may generate one or more movement line items including the time and location information where the confirmed person is located at the corresponding time according to an input of the manager. As the input of all the movement items is completed, the control unit 105 may generate signal information including Wi-Fi signal information corresponding to the location information of each movement item and store it in the movement item. For example, the control unit 105 may search for a Wi-Fi representative fingerprint corresponding to each location information using the Wi-Fi radio map, and store the wireless AP identifier and signal strength pair of the retrieved Wi-Fi representative fingerprint in the movement line item.

Alternatively, the control unit 105 may generate a movement line item by using the black box information of the portable terminal 300 of the confirmed patient in addition to the generation of the movement line item by the investigation by the epidemiological investigator. The control unit 105 may access the portable terminal 300 of the confirmed patient to extract black box information, and store each pair of signal information and collection time in each movement item.

The control unit 105 maps to the representative fingerprint according to the Euclidean distance between the collected Wi-Fi signal information (one or more wireless AP identifier and signal strength pairs) and the representative fingerprint of the Wi-Fi radio map or the wireless AP identifier common to the two signals. It is possible to determine location information corresponding to the collected Wi-Fi signal information by using the obtained location information.

In this way, the control unit 105 converts the location information into the Wi-Fi signal information using the Wi-Fi radio map stored in the storage unit 101 and stores it as a component of the movement line information of the confirmed patient in the movement line item.

The patient movement information stored in the storage unit 101 may be mapped to a map (map) image and output. For example, the management terminal 400 may receive a map image including the movement path of a specific (arbitrary) confirmed patient from the infectious disease management server 100 and display the received map image.

In addition, the control unit 105 receives a request for downloading the movement information from the portable terminal 300 through the communication unit 103, and according to the download request, within a specified period in the DB of the confirmed patient (for example, 2 weeks or 3 weeks) etc.) and may search for information on the movement route of the confirmed patient and transmit the searched information on the movement route of the confirmed patient to the portable terminal 300 through the communication unit 103 .

The information on the movement line of the confirmed patient transmitted to the portable terminal 300 includes one or more pieces of information and a plurality of collection times formed from the Wi-Fi signal information collected from the portable terminal 300 of the confirmed patient, or as described above, identified in the epidemiological investigation. A plurality of Wi-Fi signal information and time changed from location information using a Wi-Fi radio map from the movement line of the confirmed patient may be included.

The portable terminal 300 compares the information between the signal information collected from the portable terminal 300 and the movement line information of the confirmed patient (in detail, it is not the absolute movement information of the confirmed person, but the above-mentioned Wi-Fi signal information and time, etc.) It is possible to calculate the probability of exposure to infectious diseases.

In addition, the control unit 105 is configured to monitor whether contact with a confirmed person is identified and whether or not the isolated quarantined person leaves. Monitoring of whether or not quarantined persons have departed can be performed on the same server constituting the movement information of the confirmed person or on a different (physical) server.

A control flow related to monitoring whether the quarantined person has departed will be looked at in more detail with reference to FIG. 6 .

The connection unit 107 transmits/receives various data between blocks in the infectious disease management server 100 . The connection unit 107 may transmit/receive various data including one or more of a parallel bus, a serial bus, Ethernet, Wi-Fi, and the like.

4 is a diagram illustrating a control flow for calculating an infectious disease exposure level using black box information. The control flow of FIG. 4 shows a flow of calculating the degree of exposure to infectious diseases in the portable terminal 300 using black box information stored in the portable terminal 300 of the general public.

First, the infectious disease management server 100 stores the movement route information for each confirmed person in the DB of the confirmed person movement route of the storage unit 101 through investigation by an epidemiological investigator or the like. The information on the movement route of the confirmed patient includes those stored by matching the movement route identification time with the signal information of the identified place, or stored by matching the signal information and collection time easily obtained from the black box information of the confirmed patient.

The portable terminal 300 may download and execute a program (app program) for performing a method for preventing the spread of an infectious disease for the purpose of comparing the movement of confirmed patients, etc. from the download server 200 . The portable terminal 300 may perform the control flow of FIG. 4 through an infectious disease spread prevention app program (and a black box program module).

First, the portable terminal 300 sets the environment of the black box (see ①). The portable terminal 300 (processor 313 of) outputs an image for setting the black box environment to the display 311 and monitors the movement of the portable terminal 300 according to a user input through the input interface 301. Black You can set (environment) of the box.

For example, the portable terminal 300 (processor 313 of) receives a selection input for a collection period of a signal collectable in the portable terminal 300 and a collection signal to be used for sensing. The portable terminal 300 may receive one or more collection signal selection inputs among a GPS signal, a Bluetooth signal, a barometer signal, an inertial sensor signal, and a Wi-Fi signal, and selectable collection periods (eg, 1 minute, 3 minutes, 5 minutes) etc.) can receive input. The portable terminal 300 may be set by default to collect at least a Wi-Fi signal, and other signals may be further collected according to a user's selection input or program setting.

As the collection period and the signal to be collected (collection signal) are determined, the portable terminal 300 periodically collects signal information for the signals selected according to the collection period, matches the collected time, and stores it in the memory 307 ( ②). The portable terminal 300 collects one or more signal information obtainable from the portable terminal 300 at a first time according to the arrival of the collection cycle, matches the collected signal information to the first time, and stores it in the memory 307 . In addition, the portable terminal 300 collects the same one or more signal information obtainable from the portable terminal 300 at a second time according to the arrival of the collection cycle after the first time, and matches the collected signal information to the second time to memory It is stored in (307).

The portable terminal 300 collects and stores signal information according to the user's input to select a collection signal, preferably the collected signal information includes WiFi signal information configured from a WiFi signal outside the portable terminal 300, and further Signal information of one or more of a GPS signal, a Bluetooth signal, a barometer signal, and an inertial signal according to a user's selection may be further included.

The portable terminal 300 periodically collects signal information for an external signal according to a set collection period, matches it to the collection time, and stores it, and as the set storage period (eg, 2 weeks, 3 weeks, etc.) elapses, Corresponding signal information may be removed from the memory 307 . The collection and storage of signal information may be performed by a black box program module that is automatically executed in the background.

The portable terminal 300 may receive an input for checking the degree of exposure to an infectious disease in the infectious disease spread prevention app program from the user through the input interface 301 (see ③). For example, the portable terminal 300 may receive a user input for an arbitrary selected image of the app program through the input interface 301 . Alternatively, the portable terminal 300 may be set to automatically check the degree of exposure to an infectious disease by using the stored black box information at regular intervals.

As a user input for checking the degree of exposure to an infectious disease is received using the black box information stored in the portable terminal 300, the portable terminal 300 transmits a request to download the movement information of the confirmed patient to the infectious disease management server 100 through the Internet. and the infectious disease management server 100 receives it (see ④).

In response to the request for downloading movement information, the infectious disease management server 100 configures the movement information of the confirmed patient including the movement information within a specified period (eg, 2 weeks or 3 weeks, etc.) ) can be transmitted. The information on the movement of the confirmed patient transmitted to the portable terminal 300 is configured separately for each confirmed patient, and may include signal information (Wi-Fi signal information and further signal information such as GPS signal and Bluetooth signal) and time, and a portable terminal The movement route information of the confirmed person provided by

The portable terminal 300 receives the movement information of the confirmed patient from the infectious disease management server 100 (refer to ⑤), and based on the received information on the movement of the confirmed patient and the signal information mapped to each periodically collected collection time of the black box to calculate the possibility of exposure to infectious diseases (see ⑥).

The portable terminal 300 performing the infectious disease spread prevention app program is periodically collected and stored in the memory 307 and the signal similarity calculated using the Wi-Fi signal information of the collection time and the received Wi-Fi signal information of the confirmed patient's movement line information. , calculates an infectious disease exposure score (eg, a score between 0 and 100) according to the correlation between the collection time of the Wi-Fi signal information collected in the portable terminal 300 and the time of the movement information of the confirmed patient. The portable terminal 300 may calculate the signal similarity by the Euclidean distance between the two Wi-Fi signals.

When the infectious disease management server acquires only the location information corresponding to the time as information on the movement route of the confirmed patient through epidemiological investigation, etc., it obtains Wi-Fi signal information including one or more pairs of wireless AP identifiers and signal strengths from the location information using the Wi-Fi radio map. and it is included in the movement information of the confirmed patient and provided as a portable terminal.

Equation 1 is an infectious disease exposure score (Score) using my signal information (Si) recorded in the black box of the portable terminal 300 and signal information (for example, recorded in the black box of the confirmed person) (Pj). ) is shown as an example of an equation for calculating ). The infectious disease exposure score is configured to have a high score when the similarity between the signal information of the portable terminal 300 and the signal information of the confirmed patient is high.

The portable terminal 300 may calculate the signal similarity (Sim(Si, Pj)) between the two signal information (Wi-Fi signal information), for example, the signal similarity using the Euclidean distance between the two signals. can be calculated. Alternatively, the portable terminal 300 may simply calculate the signal similarity based on the existence of a wireless AP identifier common to the two Wi-Fi signal information.

The portable terminal 300 is configured to calculate an exposure score according to the correlation (Time(Si, Pj)) of the time of the two signal information. The portable terminal 300 calculates an exposure score by reflecting the time difference between the two signal information even when the two signal information indicates the same location by reflecting the survival time of the infectious disease virus. That is, according to the difference between the time of the Wi-Fi signal information of the portable terminal 300 and the time of the movement information of the confirmed patient, if the time difference is large, a relatively low infectious disease exposure score is calculated and when the time difference is small (in the case of similar time zones) yields a higher infectious disease exposure score.

As the exposure score is calculated, the portable terminal 300 may output the calculated score through the display 311 (see ⑦).

5 shows an example of an image output to the display 311 of the portable terminal 300. FIG. 5 (a) shows an image of the display 311 before calculating the infectious disease exposure score, and FIG. 5 (b) indicates an image of the display 311 on which the score is output after calculating the infectious disease exposure score.

The black box module operates in the background, and the user of the portable terminal 300 may run an infectious disease spread prevention app and provide an input of the 'check' button of ⓐ of FIG. 5 to the portable terminal 300 . In response to the 'check' button input, the portable terminal 300 transmits a request for downloading movement information to the infectious disease management server 100 and receives the movement route information of the confirmed patient from the infectious disease management server 100 to provide information on the movement route of the confirmed patient and the portable terminal ( 300), a score may be calculated according to a correlation between a comparison of each signal information and a time of the black box information stored in the black box information, and the calculated score may be displayed (refer to ⓑ of FIG. 5 ).

The portable terminal 300 periodically collects not only GPS signals that can be sensed outdoors but also Wi-Fi signals according to a set collection period, matches the collection time, and stores them in the memory 307. When exposure to an infectious disease is suspected or concerned, the portable terminal ( 300) to determine whether or not the person has been exposed to an infectious disease by comparing his/her signal information with the confirmed patient's movement information (signal information). In particular, by using Wi-Fi signal information including one or more pairs of wireless AP identifiers and signal strengths, it is possible to know whether contact or proximity with a confirmed person is in a score even indoors (in a building).

By using the Wi-Fi signal information, it may be possible to determine whether the patient is in close proximity to a confirmed person indoors, and to specify a location indoors (using a Wi-Fi radio map). Since the Wi-Fi signal information can identify a fixed wireless AP, the location can be specified, and when a person is changed to a confirmed patient, it can provide many advantages in location identification and contact search to prevent the spread of infectious diseases.

In particular, according to one aspect of the present invention, even when the same indoor space is visited with a slight time difference from the confirmer, it can be reflected in the infectious disease exposure score, so that it is possible to more accurately calculate the infectious disease exposure score. Considering that droplets can float in the air for several minutes, there is a certain risk of infection even when exposed to an indoor space such as an elevator with a slight time lag. .

In addition, the automatic score calculation is performed by a program in the portable terminal 300, but the absolute location of the confirmed patient is not exposed, so that the privacy of the confirmed patient can be protected to a certain level. Since there is no need to provide information, it has the advantage of ensuring the protection of public privacy.

6 is a diagram illustrating a control flow for monitoring an isolated person suspected of being exposed to an infectious disease. The control flow in FIG. 6 is performed by the infectious disease management server 100 and preferably by controlling other blocks by the control unit 105 executing a program.

The movement of a confirmed person is determined through an epidemiological investigation of an infectious disease, etc., and a user (general public) that overlaps with the movement of the confirmed person can be selected as an isolated person and isolated in an arbitrary isolation space. Selection of quarantined persons can be made through the calculation of the infectious disease exposure score and/or the confirmation of the epidemiological investigator (eg, black box confirmation).

First, the infectious disease management server 100 sets the quarantine environment for the quarantined person (S10). The infectious disease management server 100 can download the quarantined escape prevention app program to the portable terminal 300 used by the quarantined person, and the quarantine environment such as location information (address, etc.) of the quarantined space and quarantine period through the escape prevention app program information can be set. The epidemiological investigator and/or the quarantined person may set the quarantine environment information through the input interface 301 of the portable terminal 300 .

In the process of setting the quarantine environment, the infectious disease management server 100 may set the user's quarantine space in conjunction with the portable terminal 300 . For example, the infectious disease management server 100 may receive the quarantine address according to the input of an epidemiological investigator or a quarantine person. Alternatively, the infectious disease management server 100 receives the Wi-Fi fingerprint information collected by the portable terminal 300 in the quarantine space (eg, residence) a plurality of times, and receives representative fingerprint information of the plurality of Wi-Fi fingerprint information in the quarantine space It can be set as Wi-Fi fingerprint information corresponding to The representative fingerprint information may be set as an average of a plurality of Wi-Fi fingerprint information or may be configured by including a wireless AP identifier common in the plurality of Wi-Fi fingerprint information.

The infectious disease management server 100 transmits representative Wi-Fi fingerprint information of the quarantine space in real time according to the signal similarity between the Wi-Fi fingerprint information received from the portable terminal 300 before (before S20) or during quarantine departure monitoring. You can configure it and set it as Wi-Fi signal information corresponding to the isolated space. The Wi-Fi fingerprint information may include one or more pairs of a wireless AP identifier and a signal strength.

In the process of setting the quarantine environment, the infectious disease management server 100 also sets the Wi-Fi fingerprint transmission cycle in conjunction with the portable terminal 300 . The infectious disease management server 100 may set a transmission cycle of, for example, 3 minutes, 5 minutes, 10 minutes, 30 minutes, etc. in the portable terminal 300 .

The portable terminal 300 configures Wi-Fi fingerprint information through the Wi-Fi communication chipset (or hardware logic) of the communication interface 305 and transmits the configured Wi-Fi fingerprint information to the infectious disease management server 100 through the Internet according to the transmission cycle. and the infectious disease management server 100 receives it (S20).

The infectious disease management server 100 compares the received Wi-Fi fingerprint information according to the transmission cycle with the Wi-Fi fingerprint information corresponding to the quarantine space, and monitors whether the user has departed according to the comparison (S30).

For example, the infectious disease management server 100 may calculate the Euclidean distance between the received Wi-Fi fingerprint information and the set representative fingerprint information, and determine whether or not the user departs based on the calculated Euclidean distance. The infectious disease management server 100 may determine that the user has departed when the Euclidean distance is greater than or equal to a specified threshold distance. Alternatively, the infectious disease management server 100 may determine that the user has departed when there is no wireless AP identifier common between the two pieces of fingerprint information.

Thereafter, the infectious disease management server 100 transmits the departure result information to the manager terminal 400 ( S50 ). For example, when it is determined that the user has departed ( S40 ), the infectious disease management server 100 may transmit departure result information to the manager terminal 400 .

Thereafter, the infectious disease management server 100 may periodically receive the Wi-Fi fingerprint information according to the transmission cycle and repeatedly perform (S20 to S50) determining whether or not to depart.

The present invention described above, for those of ordinary skill in the art to which the present invention pertains, various substitutions, modifications and changes are possible without departing from the technical spirit of the present invention. It is not limited by the drawings.

100: Infectious disease management server
101: storage unit 103: communication unit
105: control unit 107: connection unit
200 : download server
300: portable terminal
301: input interface 303: sensor module
305: communication interface 307: memory
309: output interface 311: display
313: Processor
400: administrator terminal

Claims (16)

collecting, by the portable terminal, one or more signal information obtainable from the portable terminal at a first time, matching the information to the first time, and storing;
collecting, by the portable terminal, the one or more signal information obtainable from the portable terminal at a second time, matching the information at the second time, and storing;
receiving, by the portable terminal, information on the movement of a confirmed patient from an infectious disease management server; and
calculating, by the portable terminal, the possibility of exposure to an infectious disease based on the information on the movement route of the confirmed patient, the signal information at the first time, and the signal information at the second time;
One or more signal information obtainable in the portable terminal includes Wi-Fi signal information from a Wi-Fi signal,
The movement line information of the confirmed patient provided to the portable terminal includes: i) Wi-Fi signal information, not absolute location information of the confirmed patient, ii) The infectious disease management server uses the Wi-Fi radio map Includes Wi-Fi signal information obtained from the copper line,
Calculating the possibility of exposure to the infectious disease comprises:
The signal similarity is calculated using the Wi-Fi signal information of the first time, the Wi-Fi signal information of the second time, and the Wi-Fi signal information of the movement line information of the confirmed patient, and the time of the calculated signal similarity and the Wi-Fi signal information of the portable terminal and calculating the infectious disease exposure score according to the correlation between the time of the confirmed patient movement information,
How to prevent the spread of infectious diseases. According to claim 1,
The one or more signal information obtainable from the portable terminal further comprises one or more signal information of a GPS signal, a Bluetooth signal, a barometer signal, and an inertial signal,
How to prevent the spread of infectious diseases. delete delete According to claim 1,
outputting the calculated infectious disease exposure score by the portable terminal through a display; further comprising,
The first time and the second time are time determined according to a collection period set through the input interface of the portable terminal,
Wi-Fi signal information includes at least one wireless AP identifier and signal strength pair,
How to prevent the spread of infectious diseases. According to claim 1,
Calculating the possibility of exposure to the infectious disease comprises calculating a low infectious disease exposure score if the time difference is large according to the time difference between the time of the Wi-Fi signal information of the portable terminal and the time of the movement information of the confirmed patient;
How to prevent the spread of infectious diseases. According to claim 1,
Receiving the collection period and collection signal selection input through the input interface of the portable terminal before the step of collecting the one or more signal information and matching and storing the information at the first time;
The step of collecting and storing the one or more signal information by matching at the second time is collecting one or more signal information according to the collection signal selection input at a second time after the collection period has elapsed from the first time,
How to prevent the spread of infectious diseases. delete delete delete delete delete delete As an infectious disease spread prevention system,
a communication unit for transmitting and receiving data via the Internet; a storage unit that stores information on a plurality of confirmed patients; and a control unit that transmits the movement line information stored in the storage unit to the portable terminal in response to a request for downloading movement line information from the portable terminal through the communication unit, wherein the confirmed person movement line information is Wi-Fi signal information an infectious disease management server, including a plurality of collection times and a plurality of collection times, to calculate the possibility of exposure to an infectious disease by comparing it with the Wi-Fi signal information collected from the portable terminal that requested the download;
Wi-Fi signal information is collected and stored at a first time and a subsequent second time, and according to the reception of the movement line information of the confirmed patient from the infectious disease management server, the information on the movement of the confirmed patient, the Wi-Fi signal information at the first time, and the second time A portable terminal that calculates the possibility of exposure to an infectious disease based on the time Wi-Fi signal information;
The movement line information of the confirmed patient provided to the portable terminal includes: i) Wi-Fi signal information, not absolute location information of the confirmed patient, ii) The infectious disease management server uses the Wi-Fi radio map Includes Wi-Fi signal information obtained from the copper line,
The portable terminal calculates a signal similarity by using the Wi-Fi signal information at the first time, the Wi-Fi signal information at the second time, and the Wi-Fi signal information of the confirmed patient's movement line information, and compares the calculated signal similarity with the Wi-Fi signal information of the portable terminal. calculating the infectious disease exposure score according to the correlation between the time and the time of the information on the movement of the confirmed patient;
Infectious disease spread prevention system. delete delete

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