JP7477883B2 - Infection information search system and program - Google Patents

Description

The present invention relates to, for example, an infection information search system and program relating to travel sections.

In recent years, due to the global spread of the novel coronavirus, there is an urgent need to develop technology that can effectively prevent the spread of infectious diseases. There are three main routes of infection for infectious diseases such as the novel coronavirus: contact infection, droplet infection, and airborne infection. Contact infection is infection caused by contact with objects contaminated with pathogens, hands, food, filth containing pathogens, and vomit. Droplet infection is infection caused by inhaling pathogens contained in droplets caused by coughing, sneezing, and talking. Airborne infection is infection caused by inhaling small droplets (droplet nuclei) of about 1 μm that remain suspended in the air for a long time. In either case, infection can be prevented by non-infected individuals completely cutting off direct and even indirect contact with infected individuals.

However, it is nearly impossible for people to completely avoid contact with others in their daily lives. Furthermore, information about whether other people are infected is difficult to obtain, as this information is considered personal information. Therefore, in order to thoroughly prevent infection, people have been forced to go out only when absolutely necessary and have been asked to limit contact with others as much as possible, placing extreme restrictions on their normal daily lives.

Against this background, there is a need for methods that can prevent the spread of infectious diseases without imposing extreme restrictions on people going out.

Note that conventional technologies for infectious disease control include a system that displays an infection risk map on a user's terminal, in which the infection risk is superimposed on a map (Patent Document 1), and a system that displays possible travel routes on a user's terminal together with the infection risk (Patent Document 2).

International Publication No. 2019/208123 JP 2020-8969 A

However, the systems in Patent Documents 1 and 2 are configured so that a virus center collects viruses and measures the virus concentration to assess the risk of infection, and this requires virus centers to be set up in various locations. This makes it difficult to popularize the systems, and there is a problem that they are unlikely to be feasible.

Therefore, the present invention aims to provide a new technology that can prevent the spread of infectious diseases without imposing extreme restrictions on people's movements.

The infection information search system of the present invention comprises:
An infection information search system including a terminal, a search result providing server connected to the terminal via a network, a map information database that stores at least map information, and an infection information database that stores at least infection information,
The terminal includes:
an input unit that receives input of departure point information indicating a departure point and destination information indicating a destination;
a search request sending unit that sends an infection information search request including the identification information of the terminal, the departure point information, and the destination information to the search result providing server via the network,
The search result providing server includes:
a search request receiving unit that receives the infection information search request from the terminal via the network;
a travel route calculation unit that uses the departure point information and the destination information of the infection information search request to determine at least one travel route from the departure point to the destination from the map information of the map information database;
an infection information calculation unit that obtains, for at least one of the movement routes, an infection information search result from the infection information database, the infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a search result transmission unit that transmits the movement route and the infection information search result to the terminal via the network,
The terminal includes:
a search result receiving unit that receives the travel route and the infection information search result from the search result providing server via the network;
a simplified information display control unit that causes a display unit to display the movement route and simplified infection information based on any infection information included in the infection information search result;
a detailed information display control unit that, when receiving an instruction input from a user for any of the simple infection information, displays on a display unit detailed infection information that is more detailed than the simple infection information based on any infection information included in the infection information search result;
Equipped with.

The search result providing server of the present invention is a search result providing server connected to a terminal via a network,
a search request receiving unit that receives an infection information search request including identification information of the terminal, departure point information indicating a departure point, and destination information indicating a destination from the terminal via the network;
a travel route calculation unit that uses the departure point information and the destination information of the infection information search request to determine at least one travel route from the departure point to the destination from the map information of the map information database;
an infection information calculation unit that obtains, for at least one of the movement routes, an infection information search result from the infection information database, the infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
and a search result sending unit that sends the movement route and the infection information search result to the terminal via the network.

The search result providing server program of the present invention is a search result providing server computer connected to a terminal via a network,
a search request receiving unit that receives an infection information search request including identification information of the terminal, departure point information indicating a departure point, and destination information indicating a destination from the terminal via the network;
a travel route calculation unit that uses the departure point information and the destination information of the infection information search request to determine at least one travel route from the departure point to the destination from the map information of the map information database;
an infection information calculation unit that obtains, for at least one of the movement routes, an infection information search result from the infection information database, the infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
The search result transmitting unit functions as a search result transmitting unit that transmits the movement route and the infection information search result to the terminal via the network.

The search result providing server may include a map information database and/or an infection information database, or one or more servers different from the search result providing server may include the map information database and/or the infection information database.
In the case where the search result providing server includes a map information database, the travel route calculation unit may calculate the travel route using the map information database.
When a server different from the search result providing server includes a map information database, the travel route calculation unit may receive map information from the different server and calculate a travel route using the received map information.
When the search result providing server includes an infection information database, the infection information calculation unit may calculate the infection information search result using the infection information database.
When a separate server other than the search result providing server has an infection information database, the infection information calculation unit may receive infection information from the separate server and calculate infection information search results using the received infection information.

According to the above configuration, when a user attempts to go out, the user can obtain infection information about the area around the travel route from the departure point to the destination, so that the user can be alerted when going out. In addition, the user can refer to the infection information to decide whether or not to go out. This makes it possible to prevent the spread of infectious diseases without imposing extreme restrictions on people's going out.
If there is information about infections along travel routes, users will either refrain from traveling or take stricter measures to prevent infection (such as wearing masks, washing hands, disinfecting, and avoiding crowded places), which will lead to greater infection prevention.

In the search result providing server,
The movement route calculation unit calculates a plurality of the movement routes,
The infection information calculation unit calculates the infection information search result for each of the plurality of travel routes,
the search result transmission unit transmits to the terminal a plurality of the movement routes and the infection information search results corresponding to each of the movement routes;
In the terminal,
the search result receiving unit receives the plurality of movement routes and the infection information search results corresponding to each of the movement routes from the search result providing server;
The simplified information display control unit may cause a display unit to display the simplified infection information corresponding to each of the plurality of movement routes.

According to the above configuration, each of the multiple travel routes is displayed together with the simple infection information, so that the user can select a travel route with a low risk of infection by referring to the simple infection information and travel to the destination.

In the search result providing server,
the infection information calculation unit calculates the infection information search result including infection information at a location within a predetermined distance from the departure point and/or the destination,
In the terminal,
The simplified information display control unit may cause a display unit to display the departure point and/or the destination, and the simplified infection information corresponding to the departure point and/or the destination.

According to the above configuration, simplified infection information for the departure point and/or destination is displayed, allowing the user to more appropriately decide whether or not to go out.

The infection information includes infection occurrence location information indicating an infection occurrence location and/or a suspected infection location, and infected number information indicating the number of infected people at the infection occurrence location and/or the suspected infection location,
In the terminal,
The simple information display control unit may display a bubble chart corresponding to the number of infected people at locations corresponding to the location of infection and/or potential infection locations on the movement route or within a predetermined distance from the movement route, based on the infection location information and the number of infected people information from the infection information included in the infection information search result.

As an example, the simplified information display control unit may display a bubble chart with a larger diameter and/or a darker color when the number of infected people is greater.

With the above configuration, infection information along a travel route can be displayed in a visually appealing format, allowing infection information to be conveyed to the user concisely.

The infection information further includes infection onset date information indicating an infection onset date and/or a potential infection onset date,
In the terminal,
The detailed information display control unit may cause the display unit to display at least one piece of information including the location of infection and/or the potential location of infection, the number of infected people, and the date of infection and/or the potential date of infection, in response to a user's operation on the bubble chart.

According to the above configuration, detailed infection information corresponding to the bubble chart is displayed in response to a user's operation on the bubble chart, so that detailed information can be provided appropriately when the user requires detailed infection information.

The infection information includes information indicating the location of an infected person treatment facility and/or information indicating the location of an infection testing facility;
In the terminal,
The simplified information display control unit may display a mark different from the bubble chart at locations corresponding to infected patient treatment facilities and/or infection testing centers.

With the above configuration, infected treatment facilities and/or infection testing centers are displayed with marks that are different from the bubble chart, further enhancing the user's attention.

The infection information includes infection location information indicating an infection location and/or a potential infection location, and infection date information indicating an infection date and/or a potential infection date,
The search result providing server includes:
a storage unit that stores, for each identification information of the terminal, the departure point information and the destination information included in the infection information search request received from the terminal in association with a transmission date or a reception date of the infection information search request;
a determination unit that uses the infection occurrence location information and the infection occurrence date information in the infection information database, and the departure point information, the destination information, and the sending date or the receiving date stored in the storage unit to determine whether the departure point and/or the destination is an infection occurrence location or a possible infection location on the sending date or the receiving date for each identification information of the terminal;
a warning sending unit that sends a warning message to the terminal via a network when the terminal is determined to be an infection location or a potential infection location, and does not send a warning message to the terminal when the terminal is determined to be neither an infection location nor a potential infection location,
The terminal includes:
a warning receiving unit that receives the warning message from the search result providing server via a network;
The device may further include a warning display control unit that displays a warning message on the display unit.

The onset date of infection refers to the date on which the infection was identified, for example the date on which the infection was confirmed by laboratory testing or the date onset of symptoms. The onset date of infection may include the time of day.
A potential infection date refers to a date or dates on which infection is presumed to have occurred, for example, a number of days (e.g., the incubation period) prior to the date on which infection was discovered or symptoms appeared. A potential infection date may include a time of day.
An outbreak site is a location where infection has clearly been identified, such as a cluster site, or a place of infection within a household or workplace.
A suspected place of infection is a place where infection is presumed to have occurred, for example, a place where an infected person stayed on the day of infection onset or on the suspected day of infection.
The infection onset date is associated with the infection onset location or the suspected infection location. The suspected infection date is associated with the suspected infection location.

According to the above configuration, if an infection occurs at the departure point and/or destination traveled by the user on the day of travel, a warning message is displayed, thereby further strengthening the user's warning.
More specifically, users will be able to learn about any infections reported in places they have visited in the past, and will be able to take care of their health and be more careful about interacting with those around them as they may have come into contact with the infected person.

The search result providing server includes:
The infection information search system may also be provided with an evaluation unit that calculates the increase or decrease in the number of infected people within a specified period of time in the same location based on information on the location of infection, the number of infected people, and the date of infection stored in the infection information database, and evaluates the effectiveness of using the infection information search system (for example, giving a high rating if the number of infected people decreases, and a low rating if the number of infected people does not decrease).
The apparatus may further include an output unit for outputting the evaluation results by the evaluation unit (for example, displaying the results on a display unit, instructing a printer to print, transmitting the results to an external device, or storing the results in a memory).

The above configuration makes it possible to evaluate the effectiveness of using the infection information search system according to the present invention.

The infection information search system of the present invention comprises:
An infection information search system including a terminal, a search result providing server connected to the terminal via a network, a map information providing server connected to the search result providing server via the network and storing at least map information, and an infection information providing server connected to the search result providing server via the network and storing at least infection information,
The terminal includes:
an input unit that receives input of departure point information indicating a departure point and destination information indicating a destination;
a search request sending unit that sends an infection information search request including the identification information of the terminal, the departure point information, and the destination information to the search result providing server via the network;
a search request receiving unit that receives the infection information search request from the terminal via the network;
a route request sending unit that sends a travel route request including the departure point information and the destination information to the map information providing server via the network;
a route receiving unit that receives at least one travel route from the departure point to the destination from the map information providing server via the network;
an infection information request sending unit that sends an infection information request including at least one of the movement routes to the infection information providing server via the network;
an infection information receiving unit that receives, from the infection information providing server via the network, an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a search result transmission unit that transmits the movement route and the infection information search result to the terminal via the network,
The map information providing server includes:
a route request receiving unit that receives the travel route request from the search result providing server via the network;
a travel route calculation unit that uses the departure point information and the destination information included in the travel route request to calculate at least one travel route from the departure point to the destination from the map information;
a route transmission unit that transmits at least one of the travel routes to the search result providing server via the network,
The infection information providing server includes:
an infection information request receiving unit that receives the infection information request from the search result providing server via the network;
an infection information calculation unit that uses the movement route included in the infection information request to obtain an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route for at least one or more of the movement routes;
an infection information transmission unit that transmits the infection information search result to the search result providing server via the network,
The terminal includes:
a search result receiving unit that receives the travel route and the infection information search result from the search result providing server via the network;
a simplified information display control unit that causes a display unit to display the movement route and simplified infection information based on any infection information included in the infection information search result;
The device is equipped with a detailed information display control unit that, when a user inputs an instruction for any of the simple infection information, displays detailed infection information on the display unit, which is more detailed than the simple infection information, based on any infection information included in the infection information search result.

The search result providing server of the present invention is a search result providing server connected via a network to a terminal, a map information providing server that stores at least map information, and an infection information providing server that stores at least infection information,
a search request receiving unit that receives an infection information search request including identification information of the terminal, departure point information indicating a departure point, and destination information indicating a destination from the terminal via the network;
a route request sending unit that sends a travel route request including the departure point information and the destination information to the map information providing server via the network;
a route receiving unit that receives at least one travel route from the departure point to the destination from the map information providing server via the network;
an infection information request sending unit that sends an infection information request including at least one of the movement routes to the infection information providing server via the network;
an infection information receiving unit that receives, from the infection information providing server via the network, an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
and a search result sending unit that sends the movement route and the infection information search result to the terminal via the network.

The search result providing server program of the present invention includes a terminal, a map information providing server that stores at least map information, an infection information providing server that stores at least infection information, and a search result providing server computer that is connected via a network,
a search request receiving unit that receives an infection information search request including identification information of the terminal, departure point information indicating a departure point, and destination information indicating a destination from the terminal via the network;
a route request sending unit that sends a travel route request including the departure point information and the destination information to the map information providing server via the network;
a route receiving unit that receives at least one travel route from the departure point to the destination from the map information providing server via the network;
an infection information request sending unit that sends an infection information request including at least one of the movement routes to the infection information providing server via the network;
an infection information receiving unit that receives, from the infection information providing server via the network, an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
The search result transmitting unit functions as a search result transmitting unit that transmits the movement route and the infection information search result to the terminal via the network.

The search result providing server may be configured by one or more servers. Similarly, the map information providing server and the infection information providing server may be configured by one or more servers.
The map information providing server and the infection information providing server may be integrated into one server, or may be separate servers.

The infection information search system of the present invention comprises:
An infection information search system including a terminal, a map information providing server connected to the terminal via a network and storing at least map information, and an infection information providing server connected to the terminal via a network and storing at least infection information,
The terminal includes:
an input unit that receives input of departure point information indicating a departure point and destination information indicating a destination;
a route request sending unit that sends a travel route request including the departure point information and the destination information to the map information providing server via the network;
a route receiving unit that receives at least one travel route from the departure point to the destination from the map information providing server via the network;
an infection information request sending unit that sends an infection information request including at least one of the movement routes to the infection information providing server via the network;
an infection information receiving unit that receives, from the infection information providing server via the network, an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a simplified information display control unit that causes a display unit to display the movement route and simplified infection information based on any infection information included in the infection information search result;
a detailed information display control unit that, when a command input by a user is received for any of the simple infection information, displays on a display unit detailed infection information that is more detailed than the simple infection information based on any infection information included in the infection information search result,
The map information providing server includes:
a route request receiving unit that receives the travel route request from the terminal via the network;
a travel route calculation unit that uses the departure point information and the destination information included in the travel route request to calculate at least one travel route from the departure point to the destination from the map information;
a route transmission unit that transmits at least one of the movement routes to the terminal via the network,
The infection information providing server includes:
an infection information request receiving unit that receives the infection information request from the terminal via the network;
an infection information calculation unit that uses the movement route included in the infection information request to obtain an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route for at least one or more of the movement routes;
and an infection information transmission unit that transmits the infection information search results to the terminal via the network.

The terminal of the present invention is a terminal connected via a network to a map information providing server that stores at least map information and an infection information providing server that stores at least infection information,
an input unit that receives input of departure point information indicating a departure point and destination information indicating a destination;
a route request sending unit that sends a travel route request including the departure point information and the destination information to the map information providing server via the network;
a route receiving unit that receives at least one travel route from the departure point to the destination from the map information providing server via the network;
an infection information request sending unit that sends an infection information request including at least one of the movement routes to the infection information providing server via the network;
an infection information receiving unit that receives, from the infection information providing server via the network, an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a simplified information display control unit that causes a display unit to display the movement route and simplified infection information based on any infection information included in the infection information search result;
The device has a detailed information display control unit that, when a user inputs an instruction for any of the simple infection information, causes detailed infection information, which is more detailed than the simple infection information, to be displayed on the display unit based on any infection information included in the infection information search result.

The terminal program of the present invention includes a map information providing server that stores at least map information, an infection information providing server that stores at least infection information, and a terminal computer that is connected via a network,
an input unit that receives input of departure point information indicating a departure point and destination information indicating a destination;
a route request sending unit that sends a travel route request including the departure point information and the destination information to the map information providing server via the network;
a route receiving unit that receives at least one travel route from the departure point to the destination from the map information providing server via the network;
an infection information request sending unit that sends an infection information request including at least one of the movement routes to the infection information providing server via the network;
an infection information receiving unit that receives, from the infection information providing server via the network, an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a simplified information display control unit that causes a display unit to display the movement route and simplified infection information based on any infection information included in the infection information search result;
When a user inputs an instruction for any of the simple infection information, the control unit functions as a detailed information display control unit that displays detailed infection information, which is more detailed than the simple infection information, on the display unit based on any infection information included in the infection information search result.

In order to prevent the spread of infection, it is effective to reduce contact between people as much as possible, and each person's behavior is important. In other words, the virus is only the cause of the onset of the disease, and the fundamental cause of the spread of infection is the behavior of each individual.
(1) The present invention makes it possible to realize a new technology that can prevent the spread of infectious diseases without imposing extreme restrictions on people's movements.
(2) According to the present invention, when a user is about to go out, the user can refer to infection information on and around the route of travel and consider changing the route of travel or even whether to go out at all. This can draw the user's attention when going out.
Furthermore, by having a large number of users use the technology of the present invention, even if the users decide to go out, people (including acquaintances and strangers) that the users meet while traveling or out and about can exercise the same level of caution, significantly reducing behaviors that can lead to the spread of infection (close contact, conversations and dining without using masks, etc.).
(3) The present invention can be used regardless of the type of virus. In addition, the promotion of the use of the system can be strengthened or relaxed at low cost according to the actual situation of the increase or decrease in infections.

1 is a block diagram showing an infection information search system according to a first embodiment. 13 is a flowchart of a movement route calculation process. 13 is a flowchart of an infection information calculation process. FIG. 13 is a diagram showing an example of a display mode of travel routes and simplified infection information. FIG. 13 is a diagram showing an example of a display mode of detailed infection information. FIG. 11 is a block diagram showing an infection information search system according to a second embodiment. FIG. 13 is a block diagram showing an infection information search system according to a third embodiment.

The following describes embodiments of the present invention, but the present invention is not limited to the following embodiments as long as it does not deviate from the gist of the invention. In each of the following embodiments, the novel coronavirus is described as an example of a virus, but the present invention is applicable to any infectious disease, regardless of the type of virus.

First Embodiment
An infection information search system 1 according to a first embodiment will be described with reference to FIG.
The infection information search system 1 includes a terminal 2 and a search result providing server 4. Examples of the terminal 2 include, but are not limited to, a PC, a mobile terminal such as a smartphone or a tablet, or a wearable terminal. The terminal 2 is capable of communicating with the search result providing server 4 via a network (not shown). Note that, for convenience of illustration, only one terminal 2 is shown in FIG. 1, but the infection information search system 1 may include multiple terminals 2.

The terminal 2 has an input unit 21, a search request transmission unit 23, a search result receiving unit 25, a simple information display control unit 27, a detailed information display control unit 29, a warning receiving unit 31, and a warning display control unit 33. The search result providing server 4 has a search request reception unit 40, a travel route calculation unit 42, an infection information calculation unit 44, a search result transmission unit 46, a storage unit 47, a judgment unit 48, a warning transmission unit 50, an evaluation unit 52, a map information database 54, and an infection information database 56.

When a user of the terminal 2 attempts to go out, the user inputs a departure point and a destination via the input unit 21. As an example, the input unit 21 may be a touch panel that functions as a display unit and an operation unit, or may be an operation unit having operation keys and the like separate from the display unit. The input unit 21 accepts input of departure point information indicating a departure point and destination information indicating a destination. As an example, the departure point information and destination information may be the longitude and latitude of the departure point and the destination, or may be GPS position information.
When the input unit 21 accepts input of departure point information and destination information, the search request sending unit 23 sends an infection information search request including the identification information of the terminal 2, the departure point information and the destination information to the search result providing server 4 via the network.

The search request receiving unit 40 of the search result providing server 4 receives an infection information search request from the terminal 2 via the network.
The travel route calculation unit 42 uses the departure point information and destination information included in the infection information search request to find at least one travel route from the departure point to the destination from the map information 54a in the map information database 54. The map information 54a may include general map information such as GPS location information, building names, retail store names, company names, road maps, sidewalks, bicycle paths, stations, train routes, bus stops, bus routes, three-dimensional information of buildings (basements, number of floors), parks, forests, and cultivated land.
As an example, the travel route calculation unit 42 calculates a roadway route, a sidewalk route, a bicycle route, and a public transportation route from a departure point to a destination based on the map information 54a. The travel route calculation unit 42 may calculate multiple candidate roadway routes, multiple candidate sidewalk routes, multiple candidate bicycle routes, or multiple candidate train line routes.

2 shows a flowchart of the movement route calculation process executed by the movement route calculation unit 42. The movement route calculation unit 42 starts the process when the search request receiving unit 40 receives an infection information search request.
The travel route calculation unit 42 uses the departure point information, destination information and map information 54a to calculate a station close to the departure point (hereinafter, departure station) and/or a bus stop close to the departure point (hereinafter, departure bus stop), a station close to the destination (hereinafter, arrival station) and/or a bus stop close to the destination (hereinafter, arrival bus stop) (S10).
The travel route calculation unit 42 uses the departure point information, destination information and map information 54a to calculate a route from the departure point to the departure station and/or departure bus stop, and a route from the arrival station and/or arrival bus stop to the destination (S11).
The travel route calculation unit 42 uses the map information 54a to calculate a train route connecting the departure station and the arrival station and/or a bus route connecting the departure bus stop and the arrival bus stop (S12).
The travel route calculation unit 42 combines the path calculated in S11 with the line route calculated in S12 to create a public transportation route (S13).
The travel route calculation unit 42 uses the departure point information, destination information and map information 54a to calculate a road route on which the car can travel (S14).
The travel route calculation unit 42 uses the departure point information, destination information and map information 54a to calculate a bicycle route that includes a bicycle path (S15).
The travel route calculation unit 42 uses the departure point information, destination information and map information 54a to calculate a sidewalk route where a sidewalk exists (S16), and ends the process.

The travel route calculation unit 42 may receive each travel route from an existing external service, such as a travel route search service. In this case, the travel route calculation unit 42 may transmit departure point information and destination information to the external service.

Returning to Figure 1 for further explanation, the infection information calculation unit 44 obtains infection information search results from the infection information database 56, including infection information at locations on each travel route or within a predetermined distance (e.g., 50 m) from each travel route, and infection information at locations within a predetermined distance (e.g., 50 m) from each of the departure and destination points.

Here, the infection information will be described. The infection information is stored in an infection information database 56. The infection information includes (1) infection occurrence location information 56a indicating the location of infection and/or the potential location of infection, (2) infection number information 56b indicating the number of infected people at the infection occurrence location and/or the potential location of infection, (3) infection occurrence date information 56c indicating the infection occurrence date and/or the potential date of infection corresponding to the infection occurrence location and/or the potential location of infection, (4) treatment facility information 56d indicating the location and name of an infected person treatment facility (hospitals that handle infectious diseases, accommodation facilities that accept infected people, etc.), and (5) testing facility information 56e indicating the location and name of an infectious disease testing facility (PCR testing center, etc.) run by the government or private sector.
The onset date of infection refers to the date on which the infection was identified, for example the date on which the infection was confirmed by laboratory testing or the date onset of symptoms. The onset date of infection may include the time of day.
A potential infection date refers to a date or dates on which infection is presumed to have occurred, for example, a number of days (e.g., the incubation period) prior to the date on which infection was discovered or symptoms appeared. A potential infection date may include a time of day.
An outbreak site is a location where infection has clearly been identified, such as a cluster site, or a place of infection within a household or workplace.
A suspected place of infection is a place where infection is presumed to have occurred, for example, a place where an infected person stayed on the day of infection onset or on the suspected day of infection.
The infection onset date is associated with the place of infection or the suspected place of infection. The suspected date of infection is associated with the suspected place of infection. The infection information database 56 stores infection onset location information 56a, number of infected people information 56b, and infection onset date information 56c in association with each other.
Infection information may include the age and sex of the infected person, but does not include information that identifies the name (individual).Infection information may include infection route information (home, workplace, restaurant, large venue, overseas travel, unknown, etc.), but does not include information that identifies the name (individual).
When a predetermined period (for example, 14 days) has passed since the infection onset date and/or the potential infection date indicated by the infection onset date information 56c, the infection onset date information 56c and the corresponding infection location information 56a and infection number information 56b may be deleted from the infection information database 56. Also, information corresponding to persons who are no longer infected (persons who have recovered) may be deleted from the infection information database 56, or may be stored in the recovered person information database.

3 shows a flowchart of the infection information calculation process executed by the infection information calculation unit 44. The infection information calculation unit 44 starts processing when the movement route calculation unit 42 ends the movement route calculation process.
The infection information calculation unit 44 searches the infection information database 56 for infection occurrence location information 56a indicating a position on each movement route calculated by the movement route calculation unit 42 or within a predetermined distance (e.g., 50 m) from the movement route (S20).
The infection information calculation unit 44 searches the infection information database 56 for infection location information 56a indicating a location within a predetermined distance (for example, 50 m) from the departure point and destination (S21).
The infection information calculation unit 44 identifies the number of infected people information 56b and the infection onset date information 56c associated with the infection onset location information 56a searched for in S20 and S21 (S22).
The infection information calculation unit 44 identifies treatment facility information 56d indicating treatment facilities for infected persons located on each movement route or within a predetermined distance (e.g., 50 m) from each movement route (S23).
The infection information calculation unit 44 identifies treatment facility information 56d that indicates treatment facilities for infected persons located within a predetermined distance (e.g., 50 m) from the departure point and destination (S24).
The infection information calculation unit 44 identifies laboratory information 56e indicating infection laboratories located on each movement route or within a predetermined distance (for example, 50 m) from the movement route (S25).
The infection information calculation unit 44 identifies laboratory information 56e indicating infection testing laboratories located within a predetermined distance (for example, 50 m) from the departure point and destination (S26), and ends the process.

Returning to FIG. 1 for further explanation, the search result transmission unit 46 transmits the movement route calculated by the movement route calculation unit 42, and the infection occurrence location information 56a, the number of infected people information 56b, the infection occurrence date information 56c, the medical facility information 56d, and the testing center information 56e (infection information search result) identified by the infection information calculation unit 44 to the terminal 2.

The search result receiving unit 25 of the terminal 2 receives the travel route, infection location information 56a, number of infected people information 56b, infection date information 56c, medical facility information 56d, and testing center information 56e (infection information search results) from the search result providing server 4.

The simplified information display control unit 27 uses the received travel route, infection location information 56a, number of infected people information 56b, infection date information 56c, medical facility information 56d, and testing center information 56e to display the travel route and simplified infection information on the display unit (not shown). The simplified infection information is simplified infection information based on the infection information (infection location information 56a, number of infected people information 56b, infection date information 56c, medical facility information 56d, and testing center information 56e), and is displayed in a form that appeals to the user's visual sense, for example, using figures such as bubble charts.

FIG. 4 shows an example of a display mode of travel routes and simplified infection information.
The simplified information display control unit 27 displays a travel route from a departure point 100 to a destination 110. In the example of FIG. 4, a roadway route R1 (dashed line), a public transportation route R2 (solid line), a sidewalk route R3 (dashed line), and a bicycle route R4 (dotted line) are displayed. The travel route may include detailed map information of the area around the travel route. The simplified information display control unit 27 may display each travel route (R1 to R4) on the detailed map information as a background (see FIG. 4), or may display only each travel route without displaying map information as a background.

The simplified information display control unit 27 displays a bubble chart 102 at the location indicated by the received infection location information 56a. As an example, the simplified information display control unit 27 displays the bubble chart 102 so that the diameter becomes larger as the number of people in the received number of people infected information 56b increases. Note that the simplified information display control unit 27 may display the bubble chart 102 so that the density of the bubble chart 102 becomes denser as the number of people in the number of people infected information 56b increases, or may display the bubble chart 102 so that the density of the bubble chart 102 becomes denser as the received infection date information 56c is closer to the current date and time.
The simplified information display control unit 27 displays a medical facility mark 104 and a testing facility mark 105, which are different from the bubble chart 102, at the location indicated by the received medical facility information 56d and testing facility information 56e. The simplified information display control unit 27 may display the medical facility mark 104 and the testing facility mark 105 using the same mark.

When a user performs an operation on the bubble chart 102 via the input unit 21 (such as clicking on the bubble chart 102 via a touch panel), the detailed information display control unit 29 displays detailed infection information on the display unit, the detailed infection information including at least one of the infection location information 56a, the number of infected people information 56b, and the infection date information 56c corresponding to the bubble chart 102 that received the user operation.
5 shows an example of the display mode of the detailed infection information 106. When the user performs an operation on the bubble chart 102a, the detailed information display control unit 29 causes the display unit to display the detailed infection information 106 including the infection occurrence location information 56a (Restaurant C), the number of infected people information 56b (5 people), and the infection occurrence date information 56c (2021/5/20) corresponding to the bubble chart 102a.
In addition, when the user performs an operation on the treatment facility mark 104 (such as clicking on the treatment facility mark 104 via a touch panel), the detailed information display control unit 29 may display on the display unit detailed infection information 106 (i.e., the location and name of the treatment facility for infected persons) including treatment facility information 56d corresponding to the treatment facility mark 104 that received the user operation.
When a user performs an operation on the testing facility mark 105 (such as clicking on the testing facility mark 105 via a touch panel), the detailed information display control unit 29 may display on the display unit detailed infection information 106 (i.e., the location and name of the infection testing facility) including testing facility information 56e corresponding to the testing facility mark 105 that received the user operation.

The detailed information display control unit 29 may display, in response to the display of detailed infection information, the distance (distance) between the infection location or potential infection location corresponding to the bubble chart 102 operated by the user and the travel route, as a diagram such as a vertical line or a numerical value (meters). Similarly, the detailed information display control unit 29 may display, on the display unit, the location of the infected person treatment facility corresponding to the treatment facility mark 104 operated by the user and the distance (distance) between the travel route. Similarly, the detailed information display control unit 29 may display, on the display unit, the location of the infection testing facility corresponding to the testing facility mark 105 operated by the user and the distance (distance) between the travel route.

Continuing the explanation by returning to Fig. 1, the storage unit 47 of the search result providing server 4 stores, for each identification information of the terminal 2, the departure point information and destination information included in the infection information search request received from the terminal 2 in association with the transmission date or reception date of the infection information search request. In the example of Fig. 1, the identification information "1", the transmission date or reception date of the infection information search request "May 1, 2021", and the departure point information and destination information of each of the movements "from home to Department Store A", "from Department Store A to Restaurant B", and "from Restaurant B to home" are stored in association with each other.
The "date of transmission or date of reception" may include the "time of transmission" or the "time of reception." The same applies below.

The determination unit 48 determines whether the departure/destination that the user of the terminal 2 has traveled to or from in the past is a place where an infection has occurred or a possible place of infection on the sending date or the receiving date.
Specifically, the determination unit 48 determines whether there is departure point information or destination information that matches the infection location or potential infection location indicated by the infection location information 56a, using the infection information database 56 and the departure point information and destination information stored in the storage unit 47. If it is determined that there is departure point information or destination information that matches the infection location or potential infection location, the determination unit 48 determines whether the infection date or potential infection date indicated by the infection date information 56c associated with the infection location information 56a matches the transmission date or reception date stored in the storage unit 47. If it is determined that the infection onset date or potential infection date matches the sending date or receiving date, the determination unit 48 determines that the departure/destination traveled by the user is the location of infection or potential infection location on the sending date or receiving date (i.e., infection occurred on the travel day at the departure/destination traveled by the user), and if it is determined that the infection onset date or potential infection date does not match the sending date or receiving date, the determination unit 48 determines that the departure/destination traveled by the user is not the location of infection or potential infection location on the sending date or receiving date (i.e., infection did not occur on the travel day at the departure/destination traveled by the user).

When the determination unit 48 determines that the departure point/destination traveled by the user is a place of infection or a possible place of infection on the transmission date or the reception date, the warning transmission unit 50 creates a warning message and transmits the warning message to the corresponding terminal 2. As an example, the warning transmission unit 50 may create a warning message stating, "An infected person has been confirmed at Restaurant B, which was visited on May 1, 2021," and transmit the warning message to the terminal 2.
If the determination unit 48 determines that the departure point/destination to which the user has traveled is not a place of infection or a possible place of infection on the transmission date or the reception date, the warning transmission unit 50 does not create a warning message. Note that the warning transmission unit 50 may create a report message such as "We were unable to confirm the occurrence of infection at any of the past visited destinations" and send it to the terminal 2.

The warning receiving unit 31 of the terminal 2 receives the warning message from the search result providing server 4, and the warning display control unit 33 displays the warning message on the display unit (not shown).

The evaluation unit 52 of the search result providing server 4 evaluates the effectiveness of using the infection information search system 1 by monitoring changes in the number of infected people within a specified period (short-term and long-term periods such as 14 days, 21 days, 30 days, etc.) in the same infection location or suspected infection location.
The evaluation unit 52 calculates the increase or decrease in the number of infected people within a specified period at the same infection location or potential infection location based on infection location information 56a, number of infected people information 56b, and infection date information 56c stored in the infection information database 56, and if the number of infected people is on a downward trend, it judges the infection information search system 1 to be highly rated, and if the number of infected people is not on a downward trend, it judges the infection information search system 1 to be low rated.
The search result providing server 4 may include an output unit that outputs the evaluation results by the evaluation unit 52 (for example, displaying on a display unit, instructing a printer to print, transmitting to an external device, or storing in a memory).

Second Embodiment
The infection information search system 1a of the second embodiment will be described with reference to Fig. 6. Only the differences from the first embodiment will be described below. Note that the same components as those in the infection information search system 1 of the first embodiment are given the same reference numerals and will not be described.
The infection information search system 1a includes a terminal 2, a search result providing server 4a connected to the terminal 2 via a network, a map information providing server 8 connected to the search result providing server 4a via a network, and an infection information providing server 9 connected to the search result providing server 4a via a network.

Search result providing server 4a
The search result providing server 4a includes a route request sending unit 42a, a route receiving unit 42b, an infection information request sending unit 44a, an infection information receiving unit 44b, a judgment request sending unit 48a, a judgment result receiving unit 48b, an evaluation request sending unit 52a, and an evaluation result receiving unit 52b.

The route request sending unit 42a sends a travel route request including the departure point information and the destination information to the map information providing server 8. The departure point information and the destination information are included in the infection information search request received from the terminal 2.
The route receiving unit 42b receives at least one travel route from the departure point to the destination from the map information providing server 8.

The infection information request sending unit 44a sends an infection information request including at least one travel route to the infection information providing server 9.
The infection information receiving unit 44b receives the infection information search result from the infection information providing server 9. The infection information search result includes infection information at positions on each movement route or within a predetermined distance range (e.g., 50 m) from each movement route, and infection information at positions within a predetermined distance range (e.g., 50 m) from each of the departure point and destination.

The judgment request sending unit 48a associates the terminal identification information, sending date or receiving date, departure information, and destination information stored in the storage unit 47, and sends a judgment request including the associated information to the infection information providing server 9.
The determination result receiving unit 48b receives a determination result from the infection information providing server 9 indicating whether the departure point/destination that the user of the terminal 2 has previously traveled to or from is a location where an infection has occurred or a potential location where an infection has occurred on the date of transmission or the date of reception (whether an infection occurred on the day of travel at the departure point/destination that the user has traveled to or from).
The warning transmission unit 50 creates a warning message in accordance with the determination result received by the determination result receiving unit 48 b and transmits the message to the terminal 2 .

The evaluation request sending unit 52a sends a request to the infection information providing server 9 to evaluate the infection information search system 1a.
The evaluation result receiving unit 52b receives the evaluation result of the infection information search system 1a from the infection information providing server 9.

<Map information providing server 8>
The map information providing server 8 includes a storage unit 80 that stores the map information 54 a , a route request receiving unit 81 , a travel route calculating unit 82 , and a route transmitting unit 83 .
The route request receiving unit 81 receives a travel route request including departure point information and destination information from the search result providing server 4a.
The travel route calculation unit 82 uses the departure point information and destination point information included in the travel route request to determine at least one travel route from the departure point to the destination from the map information 54a stored in the storage unit 80. The specific calculation method and the like are similar to those of the travel route calculation unit 42 in the first embodiment.
The route transmitting unit 83 transmits at least one calculated travel route from the search result providing server to the search result providing server 4a.

<Infection information server 9>
The infection information providing server 9 has a memory unit 90 that stores infection information (infection location information 56a, infected number of people information 56b, infection date information 56c, medical facility information 56d, testing center information 56e), an infection information request receiving unit 91, an infection information calculation unit 92, an infection information transmitting unit 93, a judgment request receiving unit 94, a judgment unit 95, a judgment result transmitting unit 96, an evaluation request receiving unit 97, an evaluation unit 98, and an evaluation result transmitting unit 99.

The infection information request receiving unit 91 receives an infection information request including at least one travel route from the search result providing server 4a.
The infection information calculation unit 92 obtains infection information search results including infection information at positions on each movement route or within a predetermined distance (e.g., 50 m) from each movement route, and infection information at positions within a predetermined distance (e.g., 50 m) from each of the departure point and destination, from the infection information stored in the storage unit 90. The specific calculation method, etc. are similar to those of the infection information calculation unit 44 in the first embodiment.
The infection information transmitting unit 93 transmits the calculated infection information search results to the search result providing server 4a.

The determination request receiving unit 94 receives a determination request including information in which the terminal identification information, the sending date or the receiving date, the departure point information, and the destination information are associated with each other from the search result providing server 4a.
The determination unit 95 determines whether or not the departure point/destination that the user of the terminal 2 has traveled to in the past is a place where an infection has occurred or a place where an infection is suspected on the transmission date or reception date (whether an infection occurred on the travel date at the departure point/destination that the user has traveled to or from). The specific determination method, etc. are the same as those of the determination unit 48 in the first embodiment.
The determination result transmitting unit 96 transmits the determination result by the determining unit 48 to the search result providing server 4a.

The rating request receiving unit 97 receives a rating request from the search result providing server 4a.
The evaluation unit 98 evaluates the effectiveness of use of the infection information search system 1a. The specific evaluation method and the like are similar to those of the evaluation unit 52 in the first embodiment.
The evaluation result transmitting unit 99 transmits the evaluation result by the evaluating unit 98 to the search result providing server 4a.

Third Embodiment
The infection information search system 1b of the third embodiment will be described with reference to Fig. 7. Only the differences from the first and second embodiments will be described below. Note that the same components as those in the infection information search systems of the first and second embodiments are given the same reference numerals and will not be described.
The infection information search system 1a includes a terminal 2a, a map information providing server 8 connected to the terminal 2a via a network, and an infection information providing server 9 connected to the terminal 2a via a network.

The infection information search system 1b differs from the first and second embodiments in that the terminal communicates directly with the map information providing server 8 and the infection information providing server 9 without going through a search result providing server.
Terminal 2a has a route request sending unit 42a, a route receiving unit 42b, an infection information request sending unit 44a, an infection information receiving unit 44b, a storage unit 47, a judgment request sending unit 48a, a judgment result receiving unit 48b, a warning creation unit 49, an evaluation request sending unit 52a, and an evaluation result receiving unit 52b.
The functions of the route request sending unit 42a, route receiving unit 42b, infection information request sending unit 44a, infection information receiving unit 44b, judgment request sending unit 48a, judgment result receiving unit 48b, evaluation request sending unit 52a, and evaluation result receiving unit 52b are as described in the second embodiment. The functions of the storage unit 47 are as described in the first embodiment. The warning creating unit 49 creates a warning message according to the judgment result received by the judgment result receiving unit 48b. The warning message is as described in the first embodiment.
The map information providing server 8 and the infection information providing server 9 differ from the second embodiment only in that they directly communicate with the terminal 2a, and the functions of each component are the same as those described in the second embodiment.

According to the infection information search system (1, 1a, 1b) of this embodiment, when a user attempts to go out, the user can obtain infection information on the departure point, destination, travel route, and surrounding area of the travel route, and can refer to this information to select a mode of transportation, change the travel route, change the destination, and even decide whether to go out. This makes it possible to prevent the spread of infection without imposing extreme restrictions on people's going out. In the example of FIG. 4, the user can go out by selecting travel route R2 where no large-diameter bubble chart 102 is present near the travel route.
Furthermore, infection information is communicated to the user in two stages: simple infection information and detailed infection information. In particular, the simple infection information is displayed in a graphical format such as a bubble chart, allowing the user to intuitively grasp the infection information. Moreover, detailed infection information is only displayed when the user performs an operation such as clicking on the simple infection information. This allows infection information to be communicated to the user in an easy-to-understand and concise manner.
Furthermore, if there is an infection in the departure point or destination where the user has traveled in the past, a warning message will be sent to the user, which will encourage the user to be careful if there is a risk of close contact with an infected person and prevent the spread of infection.

(Another embodiment)
<1> In each of the above embodiments, the search result providing server (4, 4a), the map information providing server 8, and the infection information providing server 9 may each be configured by one server or multiple servers.
The map information providing server 8 and the infection information providing server 9 may be integrated into one server. Similarly, the search result providing server 4a and the map information providing server 8, and the search result providing server 4a and the infection information providing server 9 may be integrated into one server.
<2> In the first embodiment, the search result providing server 4 may not include the map information database 54 and/or the infection information database 56, and one or more separate servers different from the search result providing server 4 may include the map information database 54 and/or the infection information database 56. In this case, the movement route calculation unit 42 may receive map information from the separate server and calculate a movement route using the received map information. The infection information calculation unit 44 may receive infection information from the separate server and calculate infection information search results using the received infection information. Note that the map information and infection information may be periodically transmitted from the separate server to the search result providing server 4.
<3> In the third embodiment, the map information providing server 8 includes the movement route calculation unit 82, and the infection information providing server 9 includes the infection information calculation unit 92, but the terminal 2a may also include the movement route calculation unit 82 and/or the infection information calculation unit 92. When the terminal 2a includes the movement route calculation unit 82, the terminal 2a may receive map information from the map information providing server 8 and calculate a movement route using the received map information. When the terminal 2a includes the infection information calculation unit 92, the terminal 2a may receive infection information from the infection information providing server 9 and calculate an infection information search result using the received infection information. Note that the map information and the infection information may be periodically transmitted to the terminal 2a from the map information providing server 8 and the infection information providing server 9.
<4> In the second embodiment, the infection information providing server 9 includes the determination unit 95 and the evaluation unit 98, but the search result providing server 4 may include the determination unit 95 and/or the evaluation unit 98. When the search result providing server 4 includes the determination unit 95, the search result providing server 4 may receive the infection location information 56a and the infection onset date information 56c from the infection information providing server 9 when sending a determination request to the infection information providing server 9, and perform a determination by the determination unit 95 based on the information 56a and 56c and the information accumulated in the accumulation unit 47. When the search result providing server 4 includes the evaluation unit 98, the search result providing server 4 may receive the infection location information 56a, the number of infected people information 56b, and the infection onset date information 56c from the infection information providing server 9 when sending an evaluation request to the infection information providing server 9, and perform an evaluation by the evaluation unit 98 using the information 56a, 56b, and 56c.
Similarly, in the third embodiment, the terminal 2a may include a determination unit 95 and/or an evaluation unit 98 and perform the determination process and/or the evaluation process.
<5> In each of the above embodiments, only when the user turns on the warning notification function, the departure point information and destination information searched by the user may be stored in the storage unit 47, and the transmission and reception of a judgment request, the judgment process of the judgment unit (48, 95), and the transmission and reception of the judgment result may be performed.
<6> In the second embodiment, when a user performs an operation such as clicking on the simple infection information, a detailed display request may be transmitted from the search result providing server 4a to the infection information providing server 9, and information required for displaying the detailed infection information may be transmitted from the infection information providing server 9 to the search result providing server 4a. Similarly, in the third embodiment, when a user performs an operation such as clicking on the simple infection information, a detailed display request may be transmitted from the terminal 2a to the infection information providing server 9, and information required for displaying the detailed infection information may be transmitted from the infection information providing server 9 to the terminal 2a.
<7> In each of the above embodiments, the terminal (2, 2a) may have some or all of the functions of the search result providing server (4, 4a), the map information providing server 8, and the infection information providing server 9. The search result providing server 4a may have some or all of the functions of the map information providing server 8 and the infection information providing server 9.

1, 1a, 1b: infection information search system, 2, 2a: terminal, 21: input unit, 23: search request transmission unit, 25: search result reception unit, 27: simple information display control unit, 29: detailed information display control unit, 31: warning reception unit, 33: warning display control unit, 4: search result providing server, 40: search request reception unit, 42, 82: travel route calculation unit, 42a: route request transmission unit, 42b: route reception unit, 44, 92: infection information calculation unit, 44a: infection information request transmission unit, 44b: infection information reception unit, 46: search result transmission unit , 47: Storage unit, 48, 95: Judgment unit, 48a: Judgment request transmission unit, 48b: Judgment result reception unit, 50: Warning transmission unit, 52, 98: Evaluation unit, 52a: Evaluation request transmission unit, 52b: Evaluation result reception unit, 54: Map information database, 56: Infection information database, 8: Map information providing server, 81: Route request reception unit, 83: Route transmission unit, 91: Infection information request reception unit, 93: Infection information transmission unit, 94: Judgment request reception unit, 96: Judgment result transmission unit, 97: Evaluation request reception unit, 99: Evaluation result transmission unit

Claims (11)

An infection information search system including a terminal, a search result providing server connected to the terminal via a network, a map information database that stores at least map information, and an infection information database that stores at least infection information,
The terminal includes:
an input unit that receives input of departure point information indicating a departure point and destination information indicating a destination;
a search request sending unit that sends an infection information search request including the identification information of the terminal, the departure point information, and the destination information to the search result providing server via the network,
The search result providing server includes:
a search request receiving unit that receives the infection information search request from the terminal via the network;
a travel route calculation unit that uses the departure point information and the destination information of the infection information search request to determine at least one travel route from the departure point to the destination from the map information of the map information database;
an infection information calculation unit that obtains, for at least one of the movement routes, an infection information search result from the infection information database, the infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a search result transmission unit that transmits the movement route and the infection information search result to the terminal via the network,
The terminal includes:
a search result receiving unit that receives the travel route and the infection information search result from the search result providing server via the network;
a simplified information display control unit that causes a display unit to display the movement route and simplified infection information based on any infection information included in the infection information search result;
a detailed information display control unit that, when a command input by a user is received for any of the simple infection information, causes a display unit to display detailed infection information, which is more detailed information than the simple infection information, based on any infection information included in the infection information search result ,
The infection information includes infection occurrence location information indicating an infection occurrence location and/or a suspected infection location, and infection occurrence date information indicating an infection occurrence date and/or a suspected infection date,
The search result providing server includes:
a storage unit that stores, for each identification information of the terminal, the departure point information and the destination information included in the infection information search request received from the terminal in association with a transmission date or a reception date of the infection information search request;
the infection occurrence location information and the infection occurrence date information in the infection information database;
a determination unit that determines whether the departure point and/or the destination is an infection occurrence location or a possible infection location on the transmission date or the reception date, for each identification information of the terminal, using the departure point information, the destination information, and the transmission date or the reception date stored in the storage unit;
a warning sending unit that sends a warning message to the terminal via a network when the terminal is determined to be the infection location or the infection candidate location, and does not send a warning message to the terminal when the terminal is determined to be the infection location or the infection candidate location,
The terminal includes:
a warning receiving unit that receives the warning message from the search result providing server via a network;
and a warning display control unit that displays a warning message on the display unit.
Infection information search system. An infection information search system including a terminal, a search result providing server connected to the terminal via a network, a map information database that stores at least map information, and an infection information database that stores at least infection information,
The terminal includes:
an input unit that receives input of departure point information indicating a departure point and destination information indicating a destination;
a search request sending unit that sends an infection information search request including the identification information of the terminal, the departure point information, and the destination information to the search result providing server via the network,
The search result providing server includes:
a search request receiving unit that receives the infection information search request from the terminal via the network;
a travel route calculation unit that uses the departure point information and the destination information of the infection information search request to determine at least one travel route from the departure point to the destination from the map information of the map information database;
an infection information calculation unit that obtains, for at least one of the movement routes, an infection information search result from the infection information database, the infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a search result transmission unit that transmits the movement route and the infection information search result to the terminal via the network,
The terminal includes:
a search result receiving unit that receives the travel route and the infection information search result from the search result providing server via the network;
a simplified information display control unit that causes a display unit to display the movement route and simplified infection information based on any infection information included in the infection information search result;
a detailed information display control unit that, when a command input by a user is received for any of the simple infection information, causes a display unit to display detailed infection information, which is more detailed information than the simple infection information, based on any infection information included in the infection information search result,
The search result providing server includes:
an evaluation unit that calculates an increase or decrease in the number of infected people in a given location within a given period based on the infection location information, the number of infected people information, and the infection date information stored in the infection information database, and evaluates the effectiveness of using the infection information search system;
Infection information search system. In the search result providing server,
The movement route calculation unit calculates a plurality of the movement routes,
The infection information calculation unit calculates the infection information search result for each of the plurality of travel routes,
the search result transmission unit transmits to the terminal a plurality of the movement routes and the infection information search results corresponding to each of the movement routes;
In the terminal,
the search result receiving unit receives the plurality of movement routes and the infection information search results corresponding to each of the movement routes from the search result providing server;
The infection information search system according to claim 1 , wherein the simplified information display control unit causes a display unit to display the simplified infection information corresponding to each of the plurality of movement routes. In the search result providing server,
the infection information calculation unit calculates the infection information search result including infection information at a location within a predetermined distance from the departure point and/or the destination,
In the terminal,
The infection information search system according to any one of claims 1 to 3, wherein the simplified information display control unit causes the display unit to display the departure point and/or the destination, and the simplified infection information corresponding to the departure point and/or the destination . The infection information includes infection occurrence location information indicating an infection occurrence location and/or a suspected infection location, and infected number information indicating the number of infected people at the infection occurrence location and/or the suspected infection location,
In the terminal,
The infection information search system of any one of claims 1 to 4, wherein the simplified information display control unit displays a bubble chart corresponding to the number of infected people at locations corresponding to the infection locations and/or potential infection locations on the travel route or within a predetermined distance from the travel route, based on the infection location information and the infected number information among the infection information included in the infection information search results. The infection information further includes infection onset date information indicating an infection onset date and/or a potential infection onset date,
In the terminal,
The infection information search system of claim 5, wherein the detailed information display control unit causes the display unit to display at least one piece of information including the location of infection and/or the suspected location of infection, the number of infected people, and the date of infection and/or the suspected date of infection, in response to a user's operation on the bubble chart. The infection information includes information indicating the location of an infected person treatment facility and/or information indicating the location of an infection testing facility;
In the terminal,
The infection information search system according to claim 5 or 6 , wherein the simplified information display control unit displays a mark different from the bubble chart at a location corresponding to an infected person treatment facility and/or an infection testing center. The infection information includes infection location information indicating an infection location and/or a potential infection location, and infection date information indicating an infection date and/or a potential infection date,
The search result providing server includes:
a storage unit that stores, for each identification information of the terminal, the departure point information and the destination information included in the infection information search request received from the terminal in association with a transmission date or a reception date of the infection information search request;
the infection occurrence location information and the infection occurrence date information in the infection information database;
a determination unit that determines whether the departure point and/or the destination is an infection occurrence location or a possible infection location on the transmission date or the reception date, for each identification information of the terminal, using the departure point information, the destination information, and the transmission date or the reception date stored in the storage unit;
a warning sending unit that sends a warning message to the terminal via a network when the terminal is determined to be an infection location or a potential infection location, and does not send a warning message to the terminal when the terminal is determined to be neither an infection location nor a potential infection location,
The terminal includes:
a warning receiving unit that receives the warning message from the search result providing server via a network;
The infection information search system according to claim 2 , further comprising: a warning display control unit that causes a warning message to be displayed on the display unit. An infection information search system including a terminal, a search result providing server connected to the terminal via a network, a map information providing server connected to the search result providing server via the network and storing at least map information, and an infection information providing server connected to the search result providing server via the network and storing at least infection information,
The terminal includes:
an input unit that receives input of departure point information indicating a departure point and destination information indicating a destination;
a search request sending unit that sends an infection information search request including the identification information of the terminal, the departure point information, and the destination information to the search result providing server via the network;
a search request receiving unit that receives the infection information search request from the terminal via the network;
a route request sending unit that sends a travel route request including the departure point information and the destination information to the map information providing server via the network;
a route receiving unit that receives at least one travel route from the departure point to the destination from the map information providing server via the network;
an infection information request sending unit that sends an infection information request including at least one of the movement routes to the infection information providing server via the network;
an infection information receiving unit that receives, from the infection information providing server via the network, an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a search result transmission unit that transmits the movement route and the infection information search result to the terminal via the network;
and an evaluation unit that calculates an increase or decrease in the number of infected people in a given location within a given period based on infection location information, infection number information, and infection date information stored in an infection information database owned by the infection information providing server, and evaluates the effectiveness of using the infection information search system ,
The map information providing server includes:
a route request receiving unit that receives the travel route request from the search result providing server via the network;
a travel route calculation unit that uses the departure point information and the destination information included in the travel route request to calculate at least one travel route from the departure point to the destination from the map information;
a route transmission unit that transmits at least one of the travel routes to the search result providing server via the network,
The infection information providing server includes:
an infection information request receiving unit that receives the infection information request from the search result providing server via the network;
an infection information calculation unit that uses the movement route included in the infection information request to obtain an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route for at least one or more of the movement routes;
an infection information transmission unit that transmits the infection information search result to the search result providing server via the network,
The terminal includes:
a search result receiving unit that receives the travel route and the infection information search result from the search result providing server via the network;
a simplified information display control unit that causes a display unit to display the movement route and simplified infection information based on any infection information included in the infection information search result;
An infection information search system comprising: a detailed information display control unit that, when a user inputs an instruction for any of the simple infection information, displays on a display unit detailed infection information, which is more detailed than the simple infection information, based on any infection information included in the infection information search results. A search result providing server computer connected to the terminal via a network,
a search request receiving unit that receives an infection information search request including identification information of the terminal, departure point information indicating a departure point, and destination information indicating a destination from the terminal via the network;
a travel route calculation unit that uses the departure point information and the destination information of the infection information search request to determine at least one travel route from the departure point to the destination from map information in a map information database;
an infection information calculation unit that obtains, for at least one of the movement routes, an infection information search result including infection information at a position on the movement route or within a predetermined distance from the movement route from an infection information database;
a search result transmission unit that transmits the movement route and the infection information search result to the terminal via the network;
A search result providing server program that functions as an evaluation unit that calculates the increase or decrease in the number of infected people in the same location within a specified period of time based on infection location information, infection number information, and infection date information stored in the infection information database, and evaluates the effectiveness of using an infection information search system that includes the search result providing server, the map information database, and the infection information database . A terminal, a map information providing server that stores at least map information, an infection information providing server that stores at least infection information, and a search result providing server computer connected via a network,
a search request receiving unit that receives an infection information search request including identification information of the terminal, departure point information indicating a departure point, and destination information indicating a destination from the terminal via the network;
a route request sending unit that sends a travel route request including the departure point information and the destination information to the map information providing server via the network;
a route receiving unit that receives at least one travel route from the departure point to the destination from the map information providing server via the network;
an infection information request sending unit that sends an infection information request including at least one of the movement routes to the infection information providing server via the network;
an infection information receiving unit that receives, from the infection information providing server via the network, an infection information search result including infection information at positions on the movement route or within a predetermined distance from the movement route;
a search result transmission unit that transmits the movement route and the infection information search result to the terminal via the network;
A search result providing server program that functions as an evaluation unit that calculates the increase or decrease in the number of infected people in the same location within a specified period of time based on infection location information, infection number information, and infection date information stored in an infection information database owned by the infection information providing server, and evaluates the effectiveness of using an infection information search system that includes the search result providing server, the map information providing server, and the infection information database .