JP7249767B2 - Information processing device and information processing method - Google Patents

Description

The present disclosure relates to an information processing device and an information processing method.

In recent years, as a method of estimating the position of an object, for example, a method using a satellite positioning system such as GPS (Global Positioning System) is known (see, for example, Patent Document 1).

In Patent Document 1, position information obtained by GPS is obtained from a terminal device whose GPS radio wave intensity is higher than a threshold using short-range wireless communication, and when three or more pieces of position information are obtained, A technique is disclosed for estimating the position of a terminal device based on three or more pieces of position information and the radio wave intensity in the near field communication.

On the other hand, there is a service that uses location information obtained by GPS to present a meeting place for pick-up vehicles and passengers.

Japanese Patent No. 5866877

However, conventional techniques such as the technique disclosed in Patent Document 1 require a plurality of devices that provide location information. For example, in Patent Document 1, a plurality of other terminal devices are required to estimate the position of the terminal device.

Therefore, the present disclosure provides an information processing device and an information processing method that can improve the accuracy or precision of the position of a passenger terminal even if the vehicle terminal that is a terminal in the vehicle and provides position information is a single unit. do.

To achieve the above object, an information processing apparatus according to one aspect of the present disclosure is an information processing apparatus mounted in a vehicle terminal that is a terminal provided in each of one or more vehicles, an acquisition unit for acquiring vehicle position information indicating the position of a vehicle terminal; and a terminal possessed by a passenger of one of the one or more vehicles at a plurality of positions of each of the one or more vehicle terminals. and a second communication unit for transmitting a plurality of specific vehicle location information respectively indicating a plurality of locations of one or more vehicle terminals to a server. wherein the second communication unit receives corrected passenger position information indicating corrected positions of the passenger terminals from the server after the signals are respectively transmitted at a plurality of positions of one or more of the vehicle terminals. receive.

In addition, these general or specific aspects may be realized by a system, method, integrated circuit, computer program, or a recording medium such as a computer-readable CD-ROM. and any combination of recording media.

According to the information processing device and information processing method of the present disclosure, it is possible to improve the accuracy or precision of the position of the passenger terminal even if the vehicle terminal that is a terminal in the vehicle and provides position information is a single vehicle terminal.

FIG. 1 is a schematic diagram showing the configuration of a navigation system according to Embodiment 1. FIG. 2 is a block diagram showing the configuration of the passenger terminal according to Embodiment 1. FIG. 3 is a block diagram showing a configuration of a vehicle terminal according to Embodiment 1. FIG. 4 is a block diagram showing a configuration of a server according to Embodiment 1. FIG. FIG. 5 is a sequence diagram showing operations of the navigation system according to the first embodiment. FIG. 6 is a schematic diagram showing transmission of beacon signals and transmission of beacon information based on the positional relationship between passenger terminals and vehicle terminals in the first embodiment. FIG. 7 is a schematic diagram illustrating means for estimating the position of the passenger terminal when the vehicle terminal transmits signals at different positions according to the first embodiment. FIG. 8 is a schematic diagram illustrating a case where the corrected position of the passenger terminal is continuously updated while the passenger is moving toward the vehicle in the first embodiment. FIG. 9 is a schematic diagram illustrating passenger guidance information displayed on a passenger terminal according to Embodiment 1. FIG. FIG. 10 is a schematic diagram illustrating vehicle guidance information displayed on a vehicle terminal according to Embodiment 1. FIG. 11 is a flowchart showing the operation of the vehicle terminal according to Embodiment 1. FIG. 12 is a flow chart showing the operation of the passenger terminal according to Embodiment 1. FIG. 13 is a flowchart showing operation of the server according to Embodiment 1. FIG. 14 is a flowchart showing the operation of the server according to Embodiment 2. FIG.

(Circumstances leading to this disclosure)
In recent years, a service has been provided that uses location information obtained by GPS to present a meeting place for pick-up vehicles and passengers. However, with GPS, the positioning accuracy of the terminal position may deteriorate in environments such as indoors, in towns, and in mountainous areas where radio waves from multiple satellites cannot be sufficiently received.

Also known is a method in which a terminal estimates its own position using a base station of a cellular system. In this method, the terminal calculates the distance between the base station and the terminal using the location information of the base station and the radio wave intensity of the signal transmitted from the base station. A terminal estimates its own position using three-point positioning based on distances to a plurality of base stations and position information of each base station.

Furthermore, as a method of estimating its own position indoors, a method of using a beacon signal using short-range wireless communication is also known. This method uses a plurality of beacon transmitters that transmit beacon signals and a beacon receiver that receives beacon signals on the premise that the positions of the beacon transmitters do not change. Position can be estimated.

Specifically, when the beacon receiver receives the beacon signal transmitted by the beacon transmitter, the beacon receiver calculates the distance between the beacon transmitter and the beacon receiver from the radio wave intensity of the received beacon signal. . A beacon receiver uses trilateration to estimate its position based on the respective distances to and from the plurality of beacon emitters and the position of each beacon emitter. Therefore, in the position estimation method using beacon signals using short-range wireless communication, high positioning accuracy can be obtained within the reach of the beacon signals.

However, in such a method using base stations or beacon transmitters of a cellular system, it is necessary to install three or more base stations or beacon transmitters in an area whose position is to be estimated in advance. In other words, the area where the position of the beacon receiver can be estimated is limited to the area where three or more beacon transmitters can be installed.

Therefore, an information processing device according to an aspect of the present disclosure is an information processing device mounted in a vehicle terminal, which is a terminal in a vehicle, and includes an acquisition unit that acquires vehicle position information indicating the position of the vehicle terminal; a first communication unit that transmits a signal to be directly received by a passenger terminal, which is a terminal possessed by a passenger of the vehicle, at a plurality of positions of the vehicle terminal; and a plurality of positions of the vehicle terminal. a second communication unit for transmitting a plurality of respective specific vehicle position information to a server, wherein the second communication unit corrects the passenger terminal after the signals are respectively transmitted at a plurality of positions of the vehicle terminal; Corrected passenger location information is received from the server indicating the determined location.

In this way, the vehicle terminal can acquire vehicle position information indicating its own position and corrected passenger position information indicating the corrected position of the passenger terminal. In addition, since the vehicle terminal also transmits the vehicle position information indicating the position of the vehicle terminal to the passenger terminal, it is possible to cause the passenger terminal to acquire the vehicle position information at a plurality of positions of the vehicle terminal via the server. can. As a result, the passenger terminal can acquire corrected passenger position information that indicates a more accurate position than the passenger position information.

Therefore, in this information processing device, even if the terminal in the vehicle that provides position information is a single vehicle terminal, it is possible to improve the accuracy or precision of the position of the passenger terminal. With this information processing device, passengers can smoothly board the pick-up vehicle at the location of the Ochiai location.

Further, the information processing apparatus according to an aspect of the present disclosure further uses the vehicle position information and the passenger position information indicating the position of the passenger terminal to set the position of the vehicle terminal and the position of the passenger terminal to predetermined positions. a determination unit for determining whether or not the position of the vehicle terminal and the position of the passenger terminal are in the predetermined positional relationship, the first communication unit determines whether the position of the vehicle terminal and the position of the passenger terminal are in the predetermined positional relationship; Start sending.

In this way, if it is determined that the position of the vehicle terminal and the position of the passenger terminal are in a predetermined positional relationship, the information processing device can cause the passenger terminal to receive the signal emitted by itself.

In particular, the information processing device can estimate the position of the passenger terminal by, for example, having the passenger terminal measure the received signal strength of each received signal (hereinafter referred to as the radio field strength of the signal). .

Further, in the information processing device according to one aspect of the present disclosure, the signal includes signal identification information for identifying the signal.

In this way, since the signals contain the vehicle terminal identification information, the passenger terminals can identify each signal. Therefore, the information processing device can cause the passenger terminal to acquire each vehicle position information transmitted by the vehicle terminal.

Further, the information processing apparatus according to an aspect of the present disclosure further includes communication processing of acquiring movement information about movement of the vehicle from the vehicle terminal, and controlling a transmission interval of the signal based on the acquired movement information. have a department.

For example, when the vehicle terminal is not moving, that is, when it is difficult to correct the passenger position information even if the signal is transmitted, the communication processing unit increases the signal transmission interval. This enables power saving of the vehicle terminal or effective utilization of the communication band. Conversely, when the vehicle terminal is moving at high speed, the communication processing unit shortens the signal transmission interval. This can cover the failure of the passenger terminal to receive the signal.

In particular, in this information processing device, by controlling the transmission interval of the signal, it is possible to retransmit the signal at a position a predetermined distance away from the transmission of the signal. In this case, the information processing device can cause the passenger terminal to more accurately estimate the position of the passenger terminal since the positions of the respective signals are separated.

Further, in the information processing device according to an aspect of the present disclosure, the movement information indicates a moving speed of the vehicle terminal or information indicating a change in position of the vehicle terminal, and the communication processing unit includes the moving speed or the change in the position of the vehicle terminal is large, the transmission interval is shortened.

In this way, if the moving speed of the vehicle terminal in the second period is faster than the moving speed of the vehicle terminal in the first period, or, for example, the position of the vehicle terminal at the first time and the position of the vehicle terminal at the second time If the distance between them increases, the communication processing unit shortens the transmission interval of the signal transmitted by the first communication unit. Therefore, the information processing device can transmit a plurality of signals to the passenger terminal within a short period of time. Therefore, for example, even if a certain signal cannot be received by the passenger terminal, if the passenger terminal can receive another signal transmitted at a short transmission interval, the passenger terminal will be able to correct the position of the passenger terminal. It is possible to suppress the risk of failing to receive all of a plurality of signals for the purpose.

In particular, the information processing device transmits a plurality of signals to the passenger terminal within a short period of time, so that the passenger terminal can measure its own position within a shorter period of time.

Further, the information processing device according to one aspect of the present disclosure further includes a presentation control unit that controls presentation of navigation information for the vehicle terminal, and the second communication unit receives the navigation information from the server. The navigation information includes information indicating navigation using the vehicle position information and the corrected passenger position information, and the presentation control unit presents the navigation information according to changes in the corrected passenger position information. change form.

Thus, when the corrected passenger position information is obtained, the second communication unit receives navigation information including the vehicle position information and the corrected passenger position information from the server. Therefore, the presentation control unit can acquire navigation information in which the correct position of the passenger terminal is displayed according to changes in the corrected passenger position information. As a result, for example, the presentation control unit performs control such that the closer the vehicle terminal and the passenger terminal are, the more the content indicated by the navigation information is enlarged and presented. , the vehicle terminal can be presented with navigation information showing the exact position of the passenger terminal.

Further, the information processing method according to an aspect of the present disclosure further includes generating navigation information for the vehicle terminal or the passenger terminal using the vehicle position information and the corrected passenger position information, and Navigation information is transmitted to the vehicle terminal or the passenger terminal.

In this way, the information processing method also has the same effects as described above.

Further, in the information processing device according to one aspect of the present disclosure, the navigation information indicates at least one of a distance and a route from the position of the vehicle terminal to the corrected passenger position indicated by the corrected passenger position information.

In this way, the presentation control unit can present, for example, the vehicle terminal with navigation information indicating at least one of the distance and the route from the position of the vehicle terminal to the corrected passenger position.

Further, in the information processing device according to one aspect of the present disclosure, the signal is a beacon signal.

Thus, if the signal is a beacon signal, it is possible to improve the accuracy of estimating the position of the passenger terminal while utilizing existing one-way communication techniques.

Further, an information processing device according to an aspect of the present disclosure is an information processing device mounted on a passenger terminal, which is a terminal possessed by a passenger of a vehicle, and acquires passenger position information indicating the position of the passenger terminal. a first communication unit that directly receives signals respectively transmitted from the vehicle terminal at a plurality of positions of the vehicle terminal that is a terminal in the vehicle and measures the radio field intensity of the signal; A position of the passenger terminal corrected using passenger position information and a plurality of sets of each of the information indicating the radio wave intensity and a plurality of specific vehicle position information respectively indicating a plurality of positions of the vehicle terminal. and a second communication unit that receives the specific vehicle position information from a server and transmits the corrected passenger position information to the server.

In this way, the passenger terminal can acquire passenger position information indicating the position of its own aircraft and vehicle position information indicating the position of the vehicle terminal. This allows the passenger terminal to generate corrected passenger position information indicating the corrected position of the passenger terminal.

Therefore, in this information processing device, even if the terminal in the vehicle that provides position information is a single vehicle terminal, it is possible to improve the accuracy or precision of the position of the passenger terminal.

Further, in the information processing device according to the aspect of the present disclosure, the second communication unit receives vehicle position information indicating the position of the vehicle terminal, and further uses the vehicle position information and the passenger position information to A determination unit for determining whether or not a position of the vehicle terminal and a position of the passenger terminal are in a predetermined positional relationship, and the first communication unit determines whether the position of the vehicle terminal and the position of the passenger terminal are in the predetermined positional relationship. When it is determined that the predetermined positional relationship exists, the vehicle terminal starts waiting for the signal.

For example, if the passenger terminal is always able to receive signals, the power consumption of the own terminal may increase. Therefore, it is necessary to prevent the power consumption of the passenger terminal from increasing. Therefore, in this information processing device, by determining that the position of the passenger terminal and the position of the vehicle terminal are in a predetermined positional relationship, the passenger terminal is instructed to start waiting for reception of the signal transmitted by the vehicle terminal. can be a trigger. Therefore, in this information processing device, power consumption of the passenger terminal can be suppressed.

Further, in the information processing device according to an aspect of the present disclosure, the signals each include signal identification information for identifying the signals, and the second communication unit is transmitted at a plurality of positions of the vehicle terminal. transmitting the plurality of specific vehicle location information requests and the signal identification information after receiving the signal, and receiving the plurality of specific vehicle location information in response to the request.

In this way, the passenger terminal can receive a response to the request, that is, a plurality of specific vehicle position information corresponding to the vehicle terminal identification information by transmitting a plurality of specific vehicle position information requests. Accordingly, the passenger terminal can generate corrected passenger position information indicating the corrected position of the passenger terminal based on the vehicle terminal identification information and the specific vehicle position information.

Further, the information processing method according to an aspect of the present disclosure transmits requests for the plurality of specific vehicle position information and the plurality of signal identification information after receiving the signals respectively transmitted at the plurality of positions of the vehicle terminal. receiving from the passenger terminal and transmitting the plurality of specific vehicle location information to the passenger terminal in response to the request;

In this way, the information processing method also has the same effects as described above.

Further, the information processing device according to one aspect of the present disclosure further includes a presentation control unit that controls presentation of navigation information for the passenger terminal, and the second communication unit receives the navigation information from the server. , the navigation information includes information indicating navigation using the vehicle position information and the corrected passenger position information.

Thus, when the corrected passenger position information is obtained, the second communication unit receives navigation information including the vehicle position information and the corrected passenger position information from the server. As a result, for example, the presentation control unit performs control such that the closer the passenger terminal and the vehicle terminal are, the more the content indicated by the navigation information is enlarged and presented. , navigation information indicating the exact position of the passenger terminal can be presented to the passenger terminal.

Further, in the information processing apparatus according to an aspect of the present disclosure, the signal is transmitted from a plurality of vehicle terminals different from each other, or transmitted from the same vehicle terminal a plurality of times.

Thus, the passenger terminal can receive multiple different signals transmitted from the vehicle terminal. As a result, for example, the passenger terminal can measure the radio wave intensity of each signal and calculate the distance between the vehicle terminal and the passenger terminal from each radio wave intensity by positioning at a plurality of points. This allows the passenger terminal to estimate its own position.

Further, an information processing method according to an aspect of the present disclosure receives vehicle position information indicating a position of a vehicle terminal, which is a terminal in a vehicle, from the vehicle terminal, Receiving passenger position information indicating the position of the terminal from the passenger terminal, and transmitting from the vehicle terminal at a plurality of positions of the vehicle terminal when the position of the vehicle terminal and the position of the passenger terminal are in a predetermined positional relationship. receiving from the vehicle terminal a plurality of specific vehicle position information, which are a plurality of signal identification information for identifying a signal to be transmitted and a plurality of vehicle position information respectively indicating a plurality of positions of the vehicle terminal; transmitting the signal identification information and the plurality of specific vehicle location information to the passenger terminal; and after transmitting the plurality of signal identification information and the plurality of specific vehicle location information to the passenger terminal, a corrected location of the passenger terminal. is received from the passenger terminal, and the corrected passenger position information is transmitted to the vehicle terminal.

Thus, according to the information processing method, it is possible to obtain vehicle position information indicating the position of the vehicle terminal and passenger position information indicating the position of the passenger terminal. Further, in the information processing method, the vehicle position information is transmitted to the passenger terminal, and the passenger position information is transmitted to the vehicle terminal. Thereby, in the information processing method, the passenger terminal can acquire corrected passenger position information indicating the corrected position of the passenger terminal.

Therefore, it is possible to improve the accuracy or precision of the position of the passenger terminal even if the vehicle terminal that is in the vehicle and provides the position information is a single terminal.

Further, the information processing method according to an aspect of the present disclosure generates the navigation information including information for guiding a passenger to acquire the passenger position information when the passenger position information is not acquired.

In this way, by guiding the passenger to acquire the passenger position information, it is possible to more reliably acquire the position of the passenger terminal.

Further, the information processing method according to an aspect of the present disclosure instructs the vehicle terminal to start transmitting the signal when the position of the vehicle terminal and the position of the passenger terminal reach a predetermined positional relationship.

Thus, the vehicle terminal can begin transmitting signals upon receiving such an indication.

In particular, when the position of the vehicle terminal and the position of the passenger terminal are in a predetermined positional relationship, the passenger terminal may be ready to receive signals.

In addition, these general or specific aspects may be realized by a system, method, integrated circuit, computer program, or a recording medium such as a computer-readable CD-ROM. and any combination of recording media.

Hereinafter, embodiments will be specifically described with reference to the drawings. It should be noted that each of the embodiments described below is a specific example of the present disclosure. Numerical values, shapes, materials, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are examples, and are not intended to limit the present disclosure. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in independent claims representing the highest concept will be described as arbitrary constituent elements.

Each figure is a schematic diagram and is not necessarily strictly illustrated. Moreover, in each figure, the same code|symbol is attached|subjected to the substantially same structure, and the overlapping description is abbreviate|omitted or simplified.

An information processing apparatus and an information processing method according to an embodiment of the present disclosure will be described below.

(Embodiment 1)
[composition]
First, the configuration of a navigation system 1 according to this embodiment will be described.

FIG. 1 is a schematic diagram showing the configuration of a navigation system 1 according to Embodiment 1. As shown in FIG.

As shown in FIG. 1, the navigation system 1 navigates the vehicle 20 and the person by having the person who is the passenger 10 of the vehicle 20 share the positions of the vehicle 20 and the person. The navigation system 1 includes a passenger terminal 100 which is a terminal possessed by a passenger 10 of the vehicle 20 , a vehicle terminal 200 mounted on the vehicle 20 , and a server 300 . In addition, the passenger 10 includes not only the passenger 10 boarding the vehicle 20 but also the person who will be the passenger 10 who is scheduled to board the vehicle 20 . In addition, the passenger 10 includes not only a person who pays for riding the vehicle 20, such as a taxi, but also a person who simply rides the vehicle 20 for home use without paying the price. be. Note that the vehicle terminal 200 may be installed in the vehicle 20 and does not necessarily have to be installed. For example, the vehicle terminal 200 may be a terminal owned by the driver of the vehicle 20 .

[Passenger terminal]
FIG. 2 is a block diagram showing the configuration of the passenger terminal 100 according to Embodiment 1. As shown in FIG.

As shown in FIG. 2, the passenger terminal 100 includes a first GPS receiver 110, a first GPS position information calculator 120, a beacon signal receiver 130, a radio wave intensity distance converter 140, and a first beacon information communication processor. 150 , a first processing unit 160 , a first passenger position information communication processing unit 170 , a first vehicle position information communication processing unit 180 , a first presentation control unit 190 and a passenger side communication unit 102 . In this embodiment, the passenger terminal 100 is an example of an information processing device, but an information processing device may be installed. In this case, the information processing device may be composed of the first GPS receiver 110 , the passenger side communication unit 102 , the beacon signal receiver 130 , the first processor 160 and the first presentation controller 190 . It should be noted that the passenger terminal 100 includes not only the terminal possessed by the passenger 10 boarding the vehicle 20 but also the terminal possessed by the person who will be the passenger 10 who is scheduled to board the vehicle 20 .

The first GPS receiving unit 110 receives satellite signals including satellite orbit data necessary for calculating passenger position information indicating the position of the passenger terminal 100, which are transmitted from a plurality of GPS transmitters. 1 GPS positional information calculation section 120 is output. The passenger position information here is coordinates indicating the latitude and longitude of the passenger terminal 100, for example. Satellite signals containing passenger position information are received and output at predetermined time intervals. The first GPS receiver 110 is an example of an acquisition unit of the passenger terminal 100 .

The first GPS position information calculation unit 120 calculates current passenger position information of the passenger terminal 100 using the satellite signals received by the first GPS reception unit 110 . The first GPS position information calculation unit 120 outputs the calculated passenger position information to the first processing unit 160 , the first passenger position information communication processing unit 170 and the first presentation control unit 190 . The first GPS position information calculation unit 120 calculates and outputs the passenger position information each time it acquires the current passenger position information of the passenger terminal 100 .

When it is determined that the position of the passenger terminal 100 and the position of the vehicle terminal 200 are in a predetermined positional relationship, the beacon signal receiving section 130 enters a standby state in which the beacon signal can be received. At this time, the beacon signal receiving unit 130 directly receives beacon signals transmitted from the vehicle terminal 200 at a plurality of positions of the vehicle terminal 200 . Directly here means that the beacon signal is transmitted from the vehicle terminal 200 to the passenger terminal 100 without a repeater between the vehicle terminal 200 that transmitted the beacon signal and the passenger terminal 100 . The beacon signal includes a beacon ID that identifies the beacon signal. The beacon signal receiving unit 130 measures the radio wave intensity of the beacon signal. The beacon signal receiving unit 130 outputs information indicating the measured radio wave intensity of the beacon signal to the radio wave intensity distance converting unit 140 . A beacon signal is an example of a signal. The beacon signal receiver 130 is an example of a first communication unit of the passenger terminal 100 . Moreover, beacon ID is an example of signal identification information.

Here, the predetermined positional relationship between the passenger terminal 100 and the vehicle terminal 200 may mean that the linear distance between the passenger terminal 100 and the vehicle terminal 200 is within a predetermined range. It may mean that it is the distance indicated by the path to the origin of 10. Depending on where the passenger terminal 100 and the vehicle terminal 200 are located, the vehicle 20 equipped with the vehicle terminal 200 may make a long detour and go to the passenger 10 . In this case, the distance indicated by the route taken by vehicle 20 to passenger 10 is greater than the mere linear distance between the two.

The radio wave intensity distance conversion unit 140 calculates the distance between the passenger terminal 100 and the vehicle terminal 200 based on the information indicating the radio wave intensity acquired from the beacon signal receiving unit 130 . The distance between the passenger terminal 100 and the vehicle terminal 200 can be calculated using the radio wave intensity, the radio wave attenuation rate, etc. at the position of the passenger terminal 100 when the passenger terminal 100 receives the beacon signal. The radio wave intensity/distance conversion unit 140 outputs distance information indicating the calculated distance between the passenger terminal 100 and the vehicle terminal 200 to the first processing unit 160 .

The first beacon information communication processing unit 150 receives beacon information from the server 300 after receiving a beacon signal from the vehicle terminal 200 via the passenger side communication unit 102 . Specifically, when the beacon signal receiving unit 130 receives a beacon signal, the first beacon information communication processing unit 150 requests beacon information from the server 300 via the passenger side communication unit 102 . Note that the request for beacon information may be made according to the number of times the beacon signal is received, or may be made collectively for a plurality of beacon signals.

The beacon information includes a beacon ID for identifying each beacon signal, and vehicle position information (specific vehicle position information) at the time when the vehicle terminal 200 transmitted the beacon signal. When acquiring the beacon information, the first beacon information communication processing unit 150 outputs the beacon information to the first processing unit 160 .

The first processing section 160 has a first position determining section 161 and a first position estimating section 162 .

The first position determination unit 161 determines whether the position of the vehicle terminal 200 and the position of the passenger terminal 100 have a predetermined positional relationship using the vehicle position information and the passenger position information. When the first position determination unit 161 determines that the position of the vehicle terminal 200 and the position of the passenger terminal 100 are in a predetermined positional relationship, the first position determination unit 161 causes the beacon signal reception unit 130 to start waiting for reception of beacon signals. The first position determination section 161 is an example of a determination section of the passenger terminal 100 .

The first position estimating unit 162 uses the passenger position information and a plurality of sets of each of the plurality of specific vehicle position information indicating each of the information indicating the radio wave intensity and the plurality of positions of the vehicle terminal, respectively. Corrected passenger position information indicating the position of the passenger terminal 100 is generated. Specifically, the first position estimation unit 162 acquires passenger position information from the first GPS position information calculation unit 120 . The first position estimator 162 acquires information indicating the distance between the passenger terminal 100 and the vehicle terminal 200 from the radio field intensity distance converter 140 and acquires beacon information from the first beacon information communication processor 150 . Based on three or more sets of information indicating the distance between the passenger terminal 100 and the vehicle terminal 200 and information indicating the position of the vehicle terminal 200 included in the beacon information, the first processing unit 160 performs three-point The position of the passenger terminal 100 is calculated by a positioning method. That is, the first position estimator 162 generates corrected passenger position information by correcting the position of the passenger terminal 100 indicated by the passenger position information acquired from the first GPS position information calculator 120 using the three-point positioning method. The first position estimator 162 outputs the corrected passenger position information to the first passenger position information communication processor 170 . In the present embodiment, the first position estimating unit 162 estimates the position of the passenger terminal 100 using the three-point positioning method. may The first position estimator 162 is an example of a generator of the passenger terminal 100 . In the case of two-point positioning, passenger terminal position information measured by the passenger terminal 100 is also used for correction.

The specific vehicle position information referred to here indicates, for example, vehicle position information acquired by the beacon signal receiving unit 130 when one vehicle terminal 200 transmits a beacon signal. Therefore, the plurality of sets of the information indicating the radio wave intensity and the plurality of specific vehicle position information indicating each of the plurality of positions of the vehicle terminal are the sets used to derive the position of the passenger terminal 100. means.

Note that the beacon signal receiving unit 130 may receive beacon signals from multiple vehicle terminals 200 . In this case, similarly to the above, the beacon signal receiving unit 130 measures the radio wave intensity of each beacon signal, and the radio wave intensity/distance converting unit 140 measures the distance between the passenger terminal 100 and the vehicle terminal 200 based on the respective radio wave intensities. may be calculated respectively. The first processing unit 160 may calculate the position of the passenger terminal 100 from three or more sets of each distance and each position of the vehicle terminal 200 .

The first passenger position information communication processing unit 170 transmits the passenger position information to the server 300 via the passenger side communication unit 102 each time it acquires the passenger position information from the first GPS position information calculation unit 120 .

Further, when the first beacon information communication processing unit 150 acquires the beacon information, the first passenger position information communication processing unit 170 transmits the corrected passenger position information acquired from the first position estimation unit 162 via the passenger side communication unit 102. Then, it transmits it to the server 300 and outputs it to the first presentation control unit 190 .

The first vehicle position information communication processing unit 180 acquires vehicle position information, which will be described later, from the server 300 via the passenger side communication unit 102 at predetermined time intervals. The first vehicle position information communication processing unit 180 outputs the vehicle position information to the first presentation control unit 190 every time it acquires the vehicle position information.

The first presentation control unit 190 acquires passenger guidance information and controls presentation of the passenger guidance information for the passenger terminal 100 to the passenger terminal 100 . For example, when the passenger terminal 100 approaches the vehicle terminal 200, the first presentation control unit 190 enlarges and displays the screen displayed on the passenger terminal 100, or displays a location where the vehicle meets (hereinafter also referred to as a destination). may be displayed with an arrow or the like. Passenger guidance information is information that indicates at least one of distance and route guidance for the passenger 10 to go to the destination for the passenger terminal 100 . The passenger guidance information includes vehicle position information and corrected passenger position information. The first presentation control section 190 is an example of the presentation control section of the passenger terminal 100 . Passenger guidance information is an example of navigation information.

In addition, when the first presentation control unit 190 acquires the passenger position information from the first passenger position information communication processing unit 170, the first presentation control unit 190 reflects the position indicated by the passenger position information on the map indicated by the passenger guidance information and outputs the map to the passenger terminal 100. You may Further, even when the vehicle position information is acquired from the first vehicle position information communication processing unit 180, the first presentation control unit 190 reflects the position indicated by the vehicle position information on the map indicated by the passenger guide information, and displays the position indicated by the passenger terminal 100. may be output to the display unit.

Passenger side communication section 102 is a communication interface that performs wireless communication with server 300 via a network. In this embodiment, passenger terminal 100 is connected to a network via a base station. The passenger-side communication unit 102 receives beacon information, vehicle position information, and vehicle guidance information from the server 300 , and transmits requests for beacon information and passenger position information to the server 300 . The passenger side communication section 102 is an example of a second communication section of the passenger terminal 100 .

[Vehicle terminal]
FIG. 3 is a block diagram showing the configuration of vehicle terminal 200 according to the first embodiment.

As shown in FIG. 3, the vehicle terminal 200 includes a second GPS receiver 210, a second GPS position information calculator 220, a travel information receiver 230, a vehicle position estimator 240, and a second vehicle position information communication processor. 250 , a second passenger position information communication processing unit 260 , a second beacon information communication processing unit 270 , a beacon signal transmission unit 280 , a second presentation control unit 290 and a vehicle side communication unit 202 . In the present embodiment, vehicle terminal 200 is an example of an information processing device, but may be equipped with an information processing device. In this case, the information processing device may be composed of the second GPS receiver 210 , the vehicle-side communication unit 202 , the beacon signal transmitter 280 , the vehicle position estimation unit 240 , and the second presentation control unit 290 .

Second GPS receiver 210 receives satellite signals including satellite orbit data necessary for calculating vehicle position information, which are transmitted from the GPS transmitter, and outputs the satellite signals to second GPS position information calculator 220 . The vehicle position information here is coordinates indicating the latitude and longitude of the vehicle terminal 200, for example. Satellite signals containing vehicle position information are received and output at predetermined time intervals. Second GPS receiver 210 is an example of an acquisition unit of vehicle terminal 200 .

The second GPS position information calculation unit 220 uses the satellite signals received by the second GPS reception unit 210 to generate the current vehicle position information of the vehicle terminal 200 . Second GPS position information calculation section 220 outputs the generated vehicle position information to vehicle position estimation section 240 . The second GPS position information calculation unit 220 generates and outputs vehicle position information each time the current vehicle position information of the vehicle terminal 200 is obtained.

The travel information receiving unit 230 receives travel information indicating the travel speed of the vehicle terminal 200 and the like. The moving speed indicated by the moving information is acquired from the speedometer of the vehicle 20, for example. Traveling information receiving section 230 outputs movement information to vehicle position estimating section 240 .

Vehicle position estimation section 240 estimates the current position of vehicle terminal 200 based on the movement information and the vehicle position information. Vehicle position estimation section 240 outputs vehicle position information indicating the estimated position of vehicle terminal 200 to second vehicle position information communication processing section 250 , second beacon information communication processing section 270 and second presentation control section 290 .

The second vehicle position information communication processing unit 250 transmits the vehicle position information to the server 300 via the vehicle side communication unit 202 every time it acquires the vehicle position information from the vehicle position estimation unit 240 .

The second passenger position information communication processing unit 260 acquires corrected passenger position information from the server 300 via the vehicle side communication unit 202 at predetermined time intervals. The second passenger position information communication processing section 260 outputs the corrected passenger position information to the second presentation control section 290 each time it acquires the corrected passenger position information.

The second beacon information communication processing unit 270 determines whether the position of the vehicle terminal 200 and the position of the passenger terminal 100 have a predetermined positional relationship using the vehicle position information and the passenger position information. When the second beacon information communication processing unit 270 determines that the position of the vehicle terminal 200 and the position of the passenger terminal 100 are in a predetermined positional relationship, the second beacon information communication processing unit 270 directs the beacon signal transmitting unit 280 so that the passenger terminal 100 directly receives the signal. Send a beacon signal. Vehicle position estimation unit 240 is an example of a determination unit of vehicle terminal 200 . Specifically, when the passenger terminal 100 and the vehicle terminal 200 are in a predetermined positional relationship, the second beacon information communication processing unit 270 transmits beacon signals at a plurality of positions of the vehicle terminal 200. An instruction is given to the transmission unit 280 . When the second beacon information communication processing unit 270 causes the beacon signal transmitting unit 280 to transmit the beacon signal, the second beacon information communication processing unit 270 transmits the beacon information including the vehicle position information at the time of transmitting the beacon signal and the beacon ID for identifying the transmitted beacon signal. to generate The beacon ID is associated with vehicle position information. Second beacon information communication processing section 270 transmits beacon information to server 300 via vehicle side communication section 202 . Note that the second beacon information communication processing unit 270 may instruct the beacon signal transmitting unit 280 to transmit beacon signals at predetermined time intervals when the vehicle 20 is running. Thereby, beacon signals can be transmitted at a plurality of positions of the vehicle terminal 200 .

When it is determined that the position of the vehicle terminal 200 and the position of the passenger terminal 100 are in a predetermined positional relationship, the beacon signal transmission unit 280 receives instructions from the second beacon information communication processing unit 270 to In position, it begins transmitting beacon signals for direct reception by the passenger terminal 100 . The beacon signal transmission unit 280 transmits beacon signals at predetermined time intervals. Beacon signal transmission unit 280 is an example of a first communication unit of vehicle terminal 200 .

The second presentation control unit 290 acquires vehicle guidance information and controls presentation of the vehicle guidance information for the vehicle terminal 200 to the vehicle terminal 200 . For example, when the vehicle terminal 200 approaches the passenger terminal 100, the second presentation control unit 290 may enlarge and display the screen displayed on the vehicle terminal 200, or display the destination with an arrow or the like. . The vehicle guidance information is information that indicates at least one of distance and route guidance for the vehicle to go to the destination for the vehicle terminal 200 . The vehicle guidance information includes vehicle position information and corrected passenger position information. Second presentation control unit 290 is an example of a presentation control unit of vehicle terminal 200 . Vehicle guidance information is an example of navigation information.

When the second presentation control unit 290 acquires the passenger position information from the second passenger position information communication processing unit 260, the second presentation control unit 290 reflects the position indicated by the passenger position information on the map indicated by the passenger guide information and outputs the map to the passenger terminal 100. You may In addition, when the second presentation control unit 290 acquires the passenger position information from the second passenger position information communication processing unit 260, the second presentation control unit 290 reflects the position indicated by the passenger position information on the map indicated by the vehicle guidance information, and displays it on the vehicle terminal 200. You can output to the department.

Vehicle-side communication unit 202 is a communication interface that performs wireless communication with server 300 via a network. In this embodiment, vehicle terminal 200 is connected to a network via a base station. The vehicle-side communication unit 202 transmits vehicle position information and beacon information to the server 300 and receives passenger position information and vehicle guidance information from the server 300 . Vehicle-side communication section 202 is an example of a second communication section of vehicle terminal 200 .

[server]
FIG. 4 is a block diagram showing the configuration of server 300 according to the first embodiment.

As shown in FIG. 4 , the server 300 manages information transmitted between the passenger terminal 100 and the vehicle terminal 200 mounted on the vehicle 20 . The server 300 is connected to the passenger terminal 100 and the vehicle terminal 200 via a network.

The server 300 includes a processing unit 310 , a server communication unit 320 and a storage unit 330 .

Based on the passenger position information and the vehicle position information, the processing unit 310 generates vehicle guidance information for route guidance from the vehicle terminal 200 to the passenger terminal 100, and provides route guidance for the passenger from the vehicle terminal 200 to the passenger terminal 100. Generate guidance information. The processing unit 310 transmits vehicle guidance information to the vehicle terminal 200 and transmits passenger guidance information to the passenger terminal 100 via the server communication unit 320 .

In addition, when the passenger position information is not acquired from the passenger terminal 100, the processing unit 310 may generate passenger guide information including information for guiding the passenger to acquire the passenger position information. For example, when the first GPS receiver 110 cannot receive satellite signals, the processor 310 includes information that prompts the passenger carrying the passenger terminal 100 to move outdoors, to a place with few buildings, or to a place with a low-rise building. Passenger guidance information is generated, and the generated passenger guidance information is transmitted to the passenger terminal 100 via the server communication section 320 .

The server communication unit 320 is a communication interface that receives passenger position information from the passenger terminal 100 and transmits the received passenger position information to the vehicle terminal 200 . The server communication unit 320 also receives vehicle position information from the vehicle terminal 200 and transmits the received vehicle position information to the passenger terminal 100 . The server communication unit 320 repeats reception and transmission of such passenger position information and vehicle position information. Also, the received passenger position information and vehicle position information are output to the processing unit 310 and the storage unit 330 .

Server communication unit 320 receives beacon information from vehicle terminal 200 after vehicle terminal 200 transmits a beacon signal. Beacon information is stored in the storage unit 330 . The server communication unit 320 also receives a beacon information request from the passenger terminal 100 after the vehicle terminal 200 transmits the beacon signal. The processing unit 310 reads the beacon information including the beacon ID that matches the beacon ID included in the beacon information request from the storage unit 330, and the server communication unit 320 sends the read beacon information to the passengers as a response to the request. Send to terminal 100 .

The storage unit 330 stores passenger position information, vehicle position information, and beacon information acquired from the server communication unit 320 .

[motion]
Next, the operation of the navigation system 1 according to this embodiment will be described.

FIG. 5 is a sequence diagram showing operations of the navigation system 1 according to the first embodiment.

As shown in FIG. 5, first, the vehicle terminal 200 acquires vehicle position information indicating its own position by the first GPS receiver 110 (S21). Also, the passenger terminal 100 acquires the passenger position information indicating the position of the own machine by the second GPS receiver 210 (S31).

Next, the vehicle terminal 200 transmits vehicle position information to the server 300 (S22). Also, the passenger terminal 100 transmits the passenger position information to the server 300 (S32). The order of steps S22 and S32 may be reversed, and the vehicle terminal 200 may receive both at the same time.

Next, the server 300 stores the vehicle position information and passenger position information in the storage unit 330 (S11).

Next, the server 300 transmits the passenger position information to the vehicle terminal 200, and transmits the vehicle position information to the passenger terminal 100 (S12). The processing of the area surrounded by the dashed line in FIG. 5 is repeated every predetermined period.

Next, after receiving the passenger position information, the vehicle terminal 200 determines whether the position of the vehicle terminal 200 and the position of the passenger terminal 100 have a predetermined positional relationship. In FIG. 5, it is assumed that the position of the vehicle terminal 200 and the position of the passenger terminal 100 have a predetermined positional relationship, that is, the vehicle terminal 200 is within a predetermined distance from the passenger terminal 100 . Therefore, when it is determined that the vehicle terminal 200 is within a predetermined distance from the passenger terminal 100 (S23), the vehicle terminal 200 starts transmitting a beacon signal to the passenger terminal 100 (S24).

Next, the vehicle terminal 200 generates a beacon ID for identifying each beacon signal and beacon information included in the vehicle position information at the time when the vehicle terminal 200 transmits the beacon signal, and sends the generated beacon information to the server. 300 (S25).

Next, the server 300 stores beacon information in the storage unit 330 (S13).

Further, when receiving the beacon signal transmitted from the vehicle terminal 200 in step S24, the passenger terminal 100 requests the server 300 for beacon information (S33).

Next, upon receiving the beacon information request transmitted from the passenger terminal 100 in step S33, the server 300 reads from the storage unit 330 the beacon information including the beacon ID that matches the beacon ID included in the beacon information request. , to the passenger terminal 100 as a response to the request (S14).

Next, every time the passenger terminal 100 receives the beacon signal transmitted in step S24, the passenger terminal 100 generates corrected passenger position information by correcting the passenger position from the beacon information and the radio wave intensity (S34).

Next, the passenger terminal 100 transmits the corrected passenger position information to the server 300 (S35).

Next, the server 300 generates vehicle guidance information and passenger guidance information based on the vehicle position information and the corrected passenger position information (S15), and stores them in the storage section 330. FIG.

Next, the server 300 transmits vehicle guidance information to the vehicle terminal 200, and transmits passenger guidance information to the passenger terminal 100 (S16). The navigation system 1 then terminates this process.

The processing of steps S24, S25, S33 and S14 in FIG. 5 will be described with reference to FIG.

FIG. 6 is a schematic diagram showing transmission of a beacon signal and transmission of beacon information from the positional relationship between the passenger terminal 100 and the vehicle terminal 200 according to the first embodiment. Although the passenger terminal 100 and the vehicle terminal 200 are not shown in FIG. FIG. 6 shows, for example, the case where the vehicle 20 approaches a passenger. The example is not limited to that shown in FIG. 6. For example, the passenger terminal 100 may approach the vehicle terminal 200, and the passenger terminal 100 and the vehicle terminal 200 may approach the destination.

For example, the predetermined positional relationship between the passenger terminal 100 and the vehicle terminal 200 is such that the passenger terminal 100 is within a predetermined range, in other words, within a predetermined distance from the vehicle terminal 200, as indicated by the circular dashed line in FIG. For example, when the vehicle terminal 200 approaches the passenger terminal 100 , that is, when the passenger terminal 100 comes within a predetermined distance from the vehicle terminal 200 , the vehicle terminal 200 transmits beacon signals and beacon information to the server 300 . The passenger terminal 100 can acquire beacon information by acquiring this beacon information via the server 300 .

Next, the corrected passenger position information generated in step S34 of FIG. 5 will be explained using FIG.

FIG. 7 is a schematic diagram illustrating means for estimating the position of the passenger terminal 100 according to Embodiment 1, using beacon signals transmitted by the vehicle terminal 200 at a plurality of different positions. In FIG. 7, it is assumed that the passenger 10 is stopped and the vehicle 20 is moving. In FIG. 7, the position of the passenger terminal 100 is estimated by the three-point positioning method.

FIG. 7 illustrates a case where one moving vehicle terminal 200 transmits beacon signals at three different locations. By repeating the reception of the beacon signal in step S24 of FIG. 5 and the reception of the beacon information in step S14, the passenger terminal 100 generates distance information from each of the three locations on the vehicle terminal 200. FIG. The passenger terminal 100 can calculate its own position by the three-point positioning method based on the distance information for each of the three locations and the position information of the vehicle terminal 200 . In FIG. 7, the beacon signals are transmitted from the same vehicle terminal 200 at a plurality of positions, but the beacon signals may be transmitted from a plurality of different vehicle terminals 200, respectively.

Next, vehicle guide information and passenger guide information generated by the server 300 in step S16 of FIG. 5 will be described with reference to FIG.

FIG. 8 is a schematic diagram illustrating a case where the corrected position of the passenger terminal 100 is continuously updated while the passenger 10 is moving toward the vehicle 20 in the first embodiment. In FIG. 8, it is assumed that the vehicle 20 has arrived at the destination and is waiting, and the passenger 10 is approaching the vehicle 20 . The example is not limited to that shown in FIG. 8, and for example, when the passenger terminal 100 approaches the vehicle terminal 200, the passenger terminal 100 and the vehicle terminal 200 may approach the destination.

First, after the position of the passenger terminal 100 is corrected as shown in FIG. 7, it is assumed that the passenger 10, that is, the passenger terminal 100 is located at point A as shown in FIG. In step S16, the server 300 transmits the first vehicle guidance information to the vehicle terminal 200 and the first passenger guidance information to the passenger terminal 100, so that the passenger 10 can follow the information to the destination where the vehicle 20 is located. start moving to

Further, when the passenger terminal 100 approaches the vehicle terminal 200 and the position of the passenger terminal 100 is the point B, transmission of the beacon signal by the vehicle terminal 200 and reception of the beacon signal by the passenger terminal 100 in step S24 of FIG. Beacon information is received. The passenger terminal 100 calculates the distance from the vehicle terminal 200 from the radio wave intensity of the received beacon signal and the vehicle position information included in the beacon information, and further updates the corrected position of the passenger terminal 100 . The passenger terminal 100 transmits the updated position information of the passenger terminal 100 after correction to the server 300 . Then, the server 300 updates the vehicle guidance information and the passenger guidance information using the updated position information of the passenger terminal 100 after correction, transmits the second vehicle guidance information to the vehicle terminal 200, and receives the second passenger The guidance information is transmitted to the passenger terminal 100. Due to the nature of the beacon signal, the closer the distance between the passenger terminal 100 and the vehicle terminal 200, the stronger the radio wave intensity of the passenger terminal 100. Therefore, the passenger terminal 100 can more accurately estimate its own position. can. According to the second vehicle guidance information and the second passenger guidance information, the passenger terminal 100 displays more accurate content than the first vehicle guidance information and the first passenger guidance information.

Further, when the passenger terminal 100 approaches the vehicle terminal 200 and the position of the passenger terminal 100 is at point C, transmission of the beacon signal by the vehicle terminal 200 and reception of the beacon signal by the passenger terminal 100 in step S24 of FIG. Beacon information is received. Similarly to the point B, the passenger terminal 100 calculates the distance from the vehicle terminal 200 from the radio wave intensity of the received beacon signal and the vehicle position information included in the beacon information, and further calculates the position of the passenger terminal 100 after correction. Update. The passenger terminal 100 transmits the updated position information of the passenger terminal 100 after correction to the server 300 . Then, the server 300 updates the vehicle guidance information and the passenger guidance information using the updated position information of the passenger terminal 100 after correction, transmits the third vehicle guidance information to the vehicle terminal 200, and transmits the third passenger guidance information to the vehicle terminal 200. The guidance information is transmitted to the passenger terminal 100. According to the third vehicle guidance information and the third passenger guidance information, contents with higher precision than the first and second vehicle guidance information and the first and second passenger guidance information are displayed on the passenger terminal 100. be done.

Therefore, as the passenger terminal 100 approaches the vehicle terminal 200, the radio wave intensity of the passenger terminal 100 becomes stronger. It is updated and transmitted to the server 300 each time. The server 300 can more accurately guide the passenger terminal 100 or the vehicle terminal 200, that is, the passenger 10 or the vehicle 20, to the destination by generating guidance information based on the updated corrected passenger position information.

It should be noted that beacon information may not be used for updating the corrected passenger position information as described above.

Next, the passenger guidance information displayed on the passenger terminal 100 will be explained using FIG.

FIG. 9 is a schematic diagram illustrating passenger guidance information displayed on the passenger terminal 100 according to the first embodiment. In FIG. 9a, the range to which the vehicle 20 arrives, that is, the range of the destination is displayed on the passenger terminal 100. FIG. The destination range is a display for guiding the passenger 10 to the destination, and is indicated by diagonal hatching.

FIG. 9b shows the destination range when the accuracy of the destination is improved as compared to FIG. 9a by correcting the passenger position information. As shown in FIG. 9b, the passenger terminal 100 displays a range narrower than the range shown in FIG. 9a, that is, a narrowed range as the destination range. Furthermore, the passenger terminal 100 may display an object for guiding the passenger to the range of the destination. For example, in the example of b in FIG. 9, an arrow is displayed as the object.

Next, vehicle guidance information displayed on vehicle terminal 200 will be described using FIG.

FIG. 10 is a schematic diagram illustrating vehicle guidance information displayed on vehicle terminal 200 according to the first embodiment. FIG. 10a illustrates the first vehicle guidance information. As shown in FIG. 10a, the vehicle terminal 200 displays route guidance for the vehicle 20 to go to the destination (here, the position of the passenger terminal 100). Route guidance is indicated by thick dashed lines. Also, the position of the passenger terminal 100 is indicated by a thin dashed line R2. The position of the passenger terminal 100 is represented by a range rather than a point because it contains errors. The passenger guidance information indicates at least one of the distance from the position of the vehicle terminal 200 to the corrected passenger position and route guidance. In this embodiment, the passenger guidance information indicates distance and route guidance. A route guide is an example of a route.

FIG. 10b illustrates second vehicle guidance information displayed when the vehicle terminal 200 is closer to the passenger terminal 100 than in FIG. 10a. As shown in FIG. 10b, route guidance for the vehicle 20 to go to the destination is displayed on the vehicle terminal 200. FIG.

As described above, when the vehicle terminal 200 and the passenger terminal 100 approach each other, the position detection accuracy of the passenger terminal 100 increases, that is, the error decreases. area becomes smaller. As a result, the vehicle 20 can be guided closer to the passenger terminal 100, and the passenger 10 and the vehicle 20 can meet smoothly.

Next, operation of vehicle terminal 200 in the present embodiment will be described.

FIG. 11 is a flow chart showing the operation of vehicle terminal 200 according to the first embodiment. In FIG. 11, a predetermined positional relationship between the position of the vehicle terminal 200 and the position of the passenger terminal 100 means that the vehicle position is within a predetermined distance from the passenger position.

As shown in FIG. 11, first, the vehicle terminal 200 acquires vehicle position information indicating the position of the vehicle terminal 200 via the second GPS receiver 210, and acquires passenger position information from the server 300 (S111). .

Next, the second beacon information communication processing unit 270 determines whether the vehicle position is within a predetermined distance from the passenger position (S112).

If the vehicle position is not within the predetermined distance from the passenger position (No in S112), the vehicle terminal 200 returns the process to step S111.

If the vehicle position is within a predetermined distance from the passenger position (Yes in S112), the beacon signal transmission unit 280 transmits a beacon signal (S113).

Next, the second beacon information communication processing unit 270 transmits beacon information to the server 300 (S114).

Next, the second presentation control unit 290 determines whether or not vehicle guidance information has been received (S115).

When the second presentation control unit 290 receives the vehicle guidance information (Yes in S115), the second presentation control unit 290 executes the received vehicle guidance information. Thereby, the vehicle terminal 200 displays the vehicle guidance information. Vehicle terminal 200 terminates the process.

On the other hand, if the second presentation control unit 290 has not received the vehicle guidance information (No in S115), the second presentation control unit 290 returns the process to step S113.

Next, the operation of the passenger terminal 100 according to this embodiment will be described.

12 is a flow chart showing the operation of the passenger terminal 100 according to Embodiment 1. FIG.

As shown in FIG. 12, first, the passenger terminal 100 acquires passenger position information indicating the position of the passenger terminal 100 via the first GPS receiver 110, and acquires the passenger position information from the server 300 (S131).

Next, the first position determination unit 161 determines whether the vehicle position is within a predetermined distance from the passenger position (S132).

If the vehicle position is not within the predetermined distance from the passenger position (No in S132), the passenger terminal 100 returns the process to step S131.

If the vehicle position is within a predetermined distance from the passenger position (Yes in S132), the travel information receiver 230 starts waiting for beacon signals so that beacon signals can be received (S133).

Next, the second passenger position information communication processing section 260 determines whether or not a beacon signal has been received (S134).

If the passenger terminal 100 has not received a beacon signal (No in S134), the process returns to step S133.

When the beacon signal is received (Yes in S134), the beacon signal receiving unit 130 measures the radio wave intensity of the received beacon signal (S135).

Next, the passenger terminal 100 requests the server 300 to transmit beacon information including a beacon ID that matches the beacon ID indicated in the received beacon signal (S136).

Next, the first beacon information communication processing unit 150 determines whether beacon information has been received from the server 300 (S137).

If the beacon information has not been received (No in S137), the passenger terminal 100 returns to the process of step S136.

When the beacon information is received (Yes in S137), the first processing unit 160 associates the beacon information with the radio wave intensity measured in step S135 (S138).

Next, the first beacon information communication processing unit 150 determines whether or not three or more pieces of beacon information have been received (S139). Note that the first beacon information communication processing unit 150 determines whether or not three or more pieces of beacon information have been received, but this is merely an example, and the first beacon information communication processing unit 150 determines whether or not two pieces of beacon information have been received. you can go In this case, since the narrowing down of the passenger positions may be insufficient, the passenger terminal 100 further uses information such as road information indicating an area where the vehicle that transmitted the beacon signal is likely to exist to obtain the passenger position information. may be corrected.

If three or more pieces of beacon information have not been received (No in S139), the passenger terminal 100 returns to the process of step S133.

When three or more pieces of beacon information are received (Yes in S139), the first position estimator 162 generates corrected passenger position information by correcting the passenger position from the radio wave intensity of the beacon signal and the beacon information (S140).

Next, the first position estimator 162 transmits the generated corrected passenger position information to the server 300 (S141).

Next, the first presentation control unit 190 determines whether passenger guidance information has been received (S142).

If the first presentation control unit 190 has not received the passenger guidance information (No in S142), the first presentation control unit 190 repeats this process.

On the other hand, when the first presentation control unit 190 receives vehicle guidance information (Yes in S142), the first presentation control unit 190 executes the received vehicle guidance information (S143). Then, the passenger terminal 100 terminates the process.

Next, the operation of server 300 in this embodiment will be described.

FIG. 13 is a flow chart showing operations of the server 300 according to the first embodiment.

As shown in FIG. 13, first, the server 300 determines whether beacon information has been received from the vehicle terminal 200 (S151).

If the server 300 has not received the beacon information from the vehicle terminal 200 (No in S151), the server 300 ends this process. Note that the server 300 may redo this process from the beginning.

When the server 300 receives the beacon information from the vehicle terminal 200 (Yes in S151), the server 300 stores the received beacon signal in the storage unit 330 (S152).

Next, the server 300 determines whether or not a beacon information request has been received from the passenger terminal 100 (S153).

If the request for beacon information is not received from the passenger terminal 100 (No in S153), the server 300 terminates this process. Note that the server 300 may redo this process from the beginning.

When the beacon information request is received from the passenger terminal 100 (Yes in S153), the processing unit 310 reads from the storage unit 330 the beacon information including the beacon ID that matches the beacon ID included in the beacon information request. The processing unit 310 transmits this beacon signal to the passenger terminal 100 via the server communication unit 320 (S154).

Next, the server 300 determines whether or not corrected passenger position information has been received from the passenger terminal 100 (S155).

If the corrected passenger position information has not been received from the passenger terminal 100 (No in S155), the server 300 terminates this process. Note that the server 300 may redo this process from the beginning.

When the corrected passenger position information is received from the passenger terminal 100 (Yes in S155), the processing unit 310 of the server 300 generates vehicle guidance information and passenger guidance information based on the vehicle position information and the corrected passenger position information (S156). ).

Next, the server 300 transmits vehicle guidance information and passenger guidance information (S157). The server 300 then ends the process.

As described above, in the navigation system 1, the vehicle terminal 200 receives passenger position information at predetermined intervals, and the passenger terminal 100 receives vehicle position information at predetermined intervals. can be shared with each other. Further, when the position of the vehicle terminal 200 and the position of the passenger terminal 100 are in a predetermined positional relationship, the server 300 generates vehicle guidance information and passenger guidance information, the vehicle guidance information is transmitted to the vehicle terminal 200, and the passenger Guidance information is transmitted to the passenger terminal 100 . Therefore, the passenger 10 can smoothly board the vehicle 20 as the passenger 10 moves according to the guidance of the passenger guidance information and the vehicle also moves according to the guidance of the passenger guidance information.

(Embodiment 2)
[composition]
The configuration of the information processing apparatus and the information processing method of this embodiment is the same as that of the first embodiment unless otherwise specified, and the same reference numerals are assigned to the same configurations, and detailed description of the configuration is omitted. do.

The vehicle position estimation unit 240 outputs the movement information acquired by the travel information reception unit 230 to the second beacon information communication processing unit 270 . The movement information indicates the movement speed of the vehicle terminal 200 or changes in the position of the vehicle terminal 200 .

The second beacon information communication processing unit 270 acquires movement information about movement of the vehicle 20, and controls the signal transmission interval based on the acquired movement information. The second beacon information communication processing unit 270 shortens the transmission interval as the moving speed increases or as the change in the position of the vehicle terminal 200 increases. For example, the change indicator may be the amount of change or the rate of change.

[motion]
Next, operation of vehicle terminal 200 in the present embodiment will be described.

FIG. 14 is a flowchart showing the operation of vehicle terminal 200 according to the second embodiment. In FIG. 14, a predetermined positional relationship between the position of the vehicle terminal 200 and the position of the passenger terminal 100 is defined as the vehicle position being within a predetermined distance from the passenger position.

In FIG. 14, the same processing as in FIG. 11 is given the same reference numerals, and the description thereof is omitted as appropriate.

As shown in FIG. 14, first, the vehicle terminal 200 performs steps S111 and S112.

If the vehicle position is within a predetermined distance from the passenger position (Yes in S112), the vehicle terminal 200 receives movement information of the vehicle 20 from the server 300 (S161).

Next, the second beacon information communication processing unit 270 sets the transmission interval of the beacon signal according to the movement information of the vehicle (S162). Then, the vehicle terminal 200 performs the processing of steps S113 to S116, and terminates the processing.

Thus, in this navigation system 1, the transmission interval of the beacon signal is controlled according to the movement information. For example, when the vehicle terminal 200 is not moving, that is, when the transmission of the beacon signal is difficult to correct the passenger position information, the second beacon information communication processing unit 270 lengthens the transmission interval of the beacon signal. This enables power saving of the vehicle terminal 200 or effective utilization of the communication band. Conversely, when the vehicle terminal 200 is moving at high speed, the second beacon information communication processing unit 270 shortens the beacon signal transmission interval. This can cover the failure of the passenger terminal 100 to receive the beacon signal. Therefore, for example, even if the passenger terminal 100 cannot receive a certain signal, if the passenger terminal 100 can receive another signal transmitted at a short transmission interval, the passenger terminal 100 can determine the position of the passenger terminal. It is possible to suppress the risk of failing to receive all of the plurality of beacon signals for correcting the .

(Other modifications)
Although the information processing apparatus and the information processing method according to the first and second embodiments of the present disclosure have been described above, the embodiments of the present disclosure are not limited to the first and second embodiments described above.

For example, in the information processing apparatus and information processing method according to the above embodiments, vehicle position estimation section 240 estimates the moving speed of vehicle terminal 200 based on a plurality of pieces of vehicle position information calculated by second GPS position information calculation section 220. can be calculated. For example, when the vehicle position estimation unit 240 acquires two consecutively acquired vehicle position information from the second GPS position information calculation unit 220, the distance between the two vehicle terminals 200 indicated by the two vehicle position information, The speed can be calculated from the time difference added to the vehicle position information. In addition, the vehicle position estimating unit 240 can calculate a change in the position of the vehicle terminal from two consecutively acquired vehicle position information.

Further, in the information processing apparatus and information processing method according to the above embodiments, when the vehicle 20 approaches the destination, the first presentation control unit 190 may notify the vehicle 20 of approaching by voice. In addition, when the passenger 10 approaches the destination, the second presentation control unit 290 may inform the passenger 10 that the passenger 10 is approaching by voice.

Further, the information processing device according to the above embodiment may be a device independent of vehicle terminal 200 . For example, the information processing device includes a second GPS position information calculation unit 220, a vehicle position estimation unit 240, a second vehicle position information communication processing unit 250, a second passenger position information communication processing unit 260, and a second beacon information communication and a processing unit 270, which cooperates with the second GPS receiving unit 210 on the vehicle terminal 200 side, the traveling information receiving unit 230, the beacon signal transmitting unit 280, the second presentation control unit 290, and the vehicle side communication unit 202. You may

Further, in the above embodiment, an example was described in which the vehicle guidance information was displayed in a manner corresponding to changes in the corrected passenger position information. good too.

Each processing unit included in the information processing apparatus and information processing method according to the above embodiments is typically implemented as an LSI, which is an integrated circuit. These may be made into one chip individually, or may be made into one chip so as to include part or all of them.

Further, circuit integration is not limited to LSIs, and may be realized by dedicated circuits or general-purpose processors. An FPGA (Field Programmable Gate Array) that can be programmed after the LSI is manufactured, or a reconfigurable processor that can reconfigure connections and settings of circuit cells inside the LSI may be used.

In each of the above-described embodiments, each component may be configured by dedicated hardware, or realized by executing a software program suitable for each component. Each component may be realized by reading and executing a software program recorded in a recording medium such as a hard disk or a semiconductor memory by a program execution unit such as a CPU or processor.

Further, one aspect of the present disclosure may be implemented as an information processing method executed by an information processing apparatus and a program.

In addition, the numbers used above are all examples for specifically describing the present disclosure, and the embodiments of the present disclosure are not limited to the illustrated numbers.

Also, the division of functional blocks in the block diagram is an example, and a plurality of functional blocks can be realized as one functional block, one functional block can be divided into a plurality of functional blocks, and some functions can be moved to other functional blocks. may Moreover, single hardware or software may process the functions of a plurality of functional blocks having similar functions in parallel or in a time-sharing manner.

Also, the order in which each step in the flowchart is executed is for illustrative purposes in order to specifically describe the present disclosure, and orders other than the above may be used. Also, some of the above steps may be executed concurrently (in parallel) with other steps.

The information processing apparatus and program according to one or more aspects have been described above based on Embodiments 1 and 2, but Embodiments 1 and 2 of the present disclosure are not limited to these aspects. do not have. As long as it does not deviate from the spirit of the present disclosure, the embodiments 1 and 2 with various modifications that a person skilled in the art can think of, and the embodiment constructed by combining the components of different embodiments are also one or more aspects may be included within the range of

The present disclosure can be applied to devices such as vehicles, mobile terminals, and servers, or systems including these.

10 passenger 20 vehicle 100 passenger terminal (information processing device)
102 passenger side communication unit (second communication unit)
110 first GPS receiver (acquisition unit)
130 beacon signal receiver (first communication unit)
161 first position determination unit (determination unit)
162 first position estimator (generator)
190 first presentation control unit (presentation control unit)
200 vehicle terminal (information processing device)
202 vehicle side communication unit (second communication unit)
210 second GPS receiver (acquisition unit)
241 second position determination unit (determination unit)
242 second position estimator (generator)
270 second beacon information communication processing unit (communication processing unit)
280 beacon signal transmission unit (first communication unit)
290 second presentation control unit (presentation control unit)
300 servers

Claims (18)

An information processing device mounted in a vehicle terminal, which is a terminal provided in each of one or more vehicles,
an acquisition unit that acquires vehicle position information indicating the positions of one or more of the vehicle terminals;
at a plurality of locations in each of one or more of said vehicle terminals, respectively transmitting a signal for direct reception by a passenger terminal which is a terminal possessed by a potential passenger of one of said one of said vehicles; a first communication unit to
a second communication unit configured to transmit to a server a plurality of pieces of specific vehicle position information respectively indicating a plurality of positions of one or more of the vehicle terminals;
The second communication unit receives, from the server, corrected passenger position information indicating corrected positions of the passenger terminals after the signals are respectively transmitted at a plurality of positions of the one or more vehicle terminals. . Further, a determination unit for determining whether or not the positions of one or more vehicle terminals and the positions of the passenger terminals have a predetermined positional relationship using the vehicle position information and the passenger position information indicating the positions of the passenger terminals. with
The information according to claim 1, wherein the first communication unit starts transmitting the signal when it is determined that the positions of one or more of the vehicle terminals and the positions of the passenger terminals are in the predetermined positional relationship. processing equipment. The information processing apparatus according to claim 1 or 2, wherein the signal includes signal identification information for identifying the signal. Further comprising a communication processing unit that acquires movement information about movement of one or more vehicles from one or more vehicle terminals and controls transmission intervals of the signals based on the acquired movement information. The information processing device according to any one of . the movement information indicates movement speed of one or more of the vehicle terminals, or information indicating changes in position of one or more of the vehicle terminals;
The information processing apparatus according to claim 4, wherein the communication processing unit shortens the transmission interval as the moving speed increases or as the positional change of the one or more vehicle terminals increases. further comprising a presentation control unit that controls presentation of navigation information for one or more of the vehicle terminals;
The second communication unit receives the navigation information from the server,
The navigation information includes information indicating navigation using the vehicle position information and the corrected passenger position information,
The information processing apparatus according to any one of claims 1 to 5, wherein the presentation control section changes a presentation mode of the navigation information in accordance with a change in the corrected passenger position information. The information processing apparatus according to claim 6, wherein the navigation information indicates at least one of a distance and a route from the positions of the one or more vehicle terminals to the corrected passenger position indicated by the corrected passenger position information. The information processing device according to any one of claims 1 to 7, wherein the signal is a beacon signal. An information processing device mounted on a passenger terminal, which is a terminal possessed by a passenger of one or more vehicles,
an acquisition unit that acquires passenger position information indicating the position of the passenger terminal;
Directly receiving signals transmitted from one or more vehicle terminals at a plurality of positions of one or more vehicle terminals, which are terminals provided in each of the one or more vehicles, and measuring the radio field intensity of the signals. a first communication unit to
The amended said using said passenger position information, and a plurality of sets of each of said information indicating said radio wave intensity and said plurality of specific vehicle position information respectively indicating each of said plurality of positions of said one or more vehicle terminals. a generation unit that generates corrected passenger position information indicating the position of the passenger terminal;
An information processing apparatus comprising: a second communication unit that receives the specific vehicle position information from a server and transmits the corrected passenger position information to the server. The second communication unit receives vehicle position information indicating positions of one or more of the vehicle terminals,
Furthermore, a determining unit that determines whether or not the position of one or more vehicle terminals and the position of the passenger terminal have a predetermined positional relationship using the vehicle position information and the passenger position information,
When it is determined that the positions of the one or more vehicle terminals and the positions of the passenger terminals are in the predetermined positional relationship, the first communication unit waits for reception of the signal from the one or more vehicle terminals. The information processing apparatus according to claim 9, which starts. the signals each include signal identification information for identifying the signals;
The second communication unit, after receiving the signals respectively transmitted at a plurality of locations of one or more of the vehicle terminals, transmits a request for the plurality of specific vehicle location information and the signal identification information, and The information processing apparatus according to claim 9 or 10, which receives the plurality of pieces of specific vehicle position information as a response to the request. Furthermore, a presentation control unit for controlling presentation of navigation information for the passenger terminal,
The second communication unit receives the navigation information from the server,
The information processing apparatus according to claim 10, wherein the navigation information includes information indicating navigation using the vehicle position information and the corrected passenger position information. The information processing apparatus according to any one of claims 9 to 12, wherein the signals are transmitted from a plurality of vehicle terminals different from each other, or transmitted from the same vehicle terminal a plurality of times. receiving vehicle position information indicating the position of a vehicle terminal, which is a terminal provided in each of one or more vehicles, from the vehicle terminal;
receiving passenger position information indicating the position of a passenger terminal, which is a terminal possessed by a passenger of one of the one or more vehicles, from the passenger terminal;
When the positions of the one or more vehicle terminals and the positions of the passenger terminals are in a predetermined positional relationship, to identify signals respectively transmitted from the one or more vehicle terminals at a plurality of positions of the one or more vehicle terminals. and a plurality of specific vehicle position information, which are the vehicle position information respectively indicating a plurality of positions of the one or more vehicle terminals, from the one or more vehicle terminals, and the plurality of signals transmitting identification information and the plurality of specific vehicle location information to the passenger terminal;
After transmitting the plurality of signal identification information and the plurality of specific vehicle location information to the passenger terminal, receiving corrected passenger location information indicating a corrected location of the passenger terminal from the passenger terminal, and An information processing method for transmitting position information to one or more of the vehicle terminals. receiving the plurality of specific vehicle location information requests and the plurality of signal identification information from the passenger terminal after receiving the signals respectively transmitted at the plurality of locations of one or more of the vehicle terminals; 15. The information processing method according to claim 14, wherein said plurality of specific vehicle position information are transmitted to said passenger terminal as a response to said. Furthermore, using the vehicle position information and the corrected passenger position information, navigation information for one or more of the vehicle terminals or the passenger terminals is generated, and the generated navigation information is transmitted to one or more of the vehicle terminals or the passenger terminals. The information processing method according to claim 14 or 15, transmitting to the passenger terminal. 17. The information processing method according to claim 16, wherein, if the passenger location information is not acquired, the navigation information including information guiding the passenger to acquire the passenger location information is generated. When the positions of the one or more vehicle terminals and the positions of the passenger terminals reach a predetermined positional relationship, the one or more vehicle terminals are instructed to start transmitting the signal. The information processing method according to the item.

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