JP2002216191A - Mobile object information transmitting system and credit granting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transmit information such as credit granting information to a mobile object which moves at high speed even if a narrow band communication system such as DSRC(dedicated short range communication) is used. SOLUTION: A plurality of road side machines 2 as DSRC communication base stations are arranged on a road 1 and a service zone is formed. When the mobile object 3 enters the service zone, the first road side machine 2(a1) inspects a credit granting status and requests a credit granting to a managing center 6. The road side machine 2(a1) designates a transfer source road side machine 2(a3) from which the mobile object 3 has to receive a credit granting result (simple credit granting information) from the managing center 6. When the mobile object 3 fails in the reception of information in the road side machine 2(a3), a further road side machine 2(a5) is designated to a transfer source prior to the movement of the mobile object 3. Thus, information such as credit granting information is securely transmitted to the mobile object 3 which moves at high speed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile information transmission system and a credit system suitable for, for example, an automatic toll collection system on a highway.

[0002]

2. Description of the Related Art For example, ITS (Intelligent Transport)
In the advanced traffic system called "T Systems", DSRC (Dedicated Short Range Commnicatio) is used as one of the communication methods between the roadside machine installed on the road and the vehicle.
The use of a short-range communication method called n) is under study.

As a specific system using DSRC, ETC (Electronic Toll Collection System)
A toll road automatic toll collection system, a parking lot use management system, and the like have been proposed. In conventional ETC,
One wireless base station (hereinafter, referred to as a roadside device) is installed beside or above a specific place on a road, and a wireless communication terminal (hereinafter, referred to as an onboard device) is mounted on each automobile. When the vehicle enters the communication area on the road of the roadside device, communication is performed between the vehicle-mounted device of the vehicle and the one roadside device.

At present, the DSRC between the single roadside device and the on-vehicle device in the ETC is defined in the "Toll road automatic toll collection system standard ARIB STD-T55 1.1 version".

[0005]

Vehicles (vehicle-mounted devices) traveling on a highway include, for example, toll gates on the highway,
Payment using a credit card or the like may be performed at a store, a gas station, or the like in a service area. In the case of using a credit card, it is necessary to perform settlement between the credit card use point and a management center that manages credit information while checking the credit balance and the like.

However, the DSRC communication area of a single roadside device is narrow, having a total length of only about several tens of meters.
Therefore, in an automatic toll collection system for a highway to which DSRC is applied, when a vehicle passes through this narrow communication area at a normal cruising speed (for example, about 100 km / h), the communicable time is too short (for example, 1
２2 seconds), it may not be possible to obtain sufficient time for inquiring the management center about the credit status. Therefore, in the conventional ETC, when a single roadside device checks the credit to the management center, the vehicle may reduce its speed just before entering the communication area of the roadside device and run in the communication area at a sufficiently low speed, or run there. You need to pause. However, as a result, there arises a problem that the purpose of the automatic toll collection system of eliminating traffic congestion caused by the toll gate cannot be sufficiently achieved.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a mobile body credit system capable of giving credit information to a high-speed running automobile. Another object of the present invention is to provide a credit system for a mobile object that provides credit information to a mobile object that moves at high speed and enables simple settlement.

[0008]

In order to solve the above-mentioned problems, in a mobile information transmission system and a credit system according to the present invention, a plurality of radio communication base stations are provided on a traveling route of the mobile. . Each of these wireless communication base stations has its own communication area, and can communicate with the mobile when the mobile is located in each communication area. . The credit information management device manages credit information of the mobile object as information to be transmitted to the mobile object, and is provided so as to be able to communicate with each wireless communication base station.

The credit requesting means communicates with a mobile through any of the radio communication base stations, and requests the credit information management device for credit information on the mobile. The delivery source designation means designates a wireless communication base station to which credit information from the credit information management device should be delivered to the mobile unit. The credit information setting means transfers the credit information to the mobile unit via the wireless communication base station designated as the transfer source and sets the mobile unit.

That is, a service zone is formed on the traveling route by a series of radio communication stations, and when a mobile body enters this service zone, it passes through a radio communication base station located at the start end of the traveling route. The credit information is requested from the credit information management device. Then, for the mobile, a wireless communication base station to receive the credit information from the credit information management device is specified. While the moving object is moving on the traveling route, the credit information management device checks the credit balance of the moving object and transmits the credit information to each wireless communication base station. The mobile unit continues to move until the credit information is transmitted from the credit information management device, and eventually enters the communication area of the wireless communication base station designated as the delivery source. The delivery source wireless communication base station delivers and sets the credit information to the mobile object. As a result, the mobile can settle based on the set credit information.

[0011] In a preferred embodiment, the delivery source designating means includes:
Until credit information is set for the mobile unit, the wireless communication base stations located on the route of the mobile unit are successively designated as the transfer source wireless communication base stations according to the movement of the mobile unit.

[0012] Each time the mobile body reaches the communication area of each wireless communication base station, it can request the transfer of credit information. A wireless communication base station that has not received the credit information from the credit information management device cannot transfer the credit information to the mobile unit. When the mobile reaches the communication area of the wireless communication base station that has received the credit information from the credit information management device, the mobile can receive the credit information.

[0013] In a preferred embodiment, the delivery source designating means comprises:
Based on the moving speed of the mobile unit and the time required for credit confirmation by the credit information management unit, the radio communication base station at the point where the mobile unit is predicted to reach when receiving credit information from the credit information management unit Is designated as the source wireless communication base station. If the transfer of credit information from the previously specified wireless communication base station to the mobile unit fails, the new wireless communication base station located on the path of the mobile unit is set as the transfer source wireless communication base station. Specify again.

A predetermined value can be set in advance for the moving speed of the moving object and the credit confirmation time in the credit information management device, or the moving speed of the moving object can be acquired and considered. . A wireless communication having a communication area covering a predicted arrival point with a sufficient margin for predicting a point at which a mobile body reaches within a time from when a credit request is issued to the credit information management device to when credit information is transmitted. What is necessary is just to set a base station as a delivery source. If the speed of the moving object changes and the prediction is incorrect, and the transfer of credit information fails,
Further, the credit information can be set on the mobile unit by re-designating the wireless communication base station as the delivery source.

In a preferred embodiment, there is further provided a settlement processing means for performing settlement in response to a settlement request from the mobile body, and the settlement processing means simply performs settlement based on credit information set in the mobile body. .

When performing strict settlement, it is necessary to obtain the latest credit information at the time of the settlement request from the credit information management device. However, the credit information set on the mobile
Since it is relatively recent, it is also possible to make a simple settlement using this credit information.

By setting a part of the credit balance, but not all of the credit balance, as creditable balance in the credit information, it is possible to enhance the security of the settlement. In particular,
For example, the credit information is set as creditable balance only for the amount expected to be used in the service zone such as tolls and refueling fees on expressways, and the amount set for this creditable balance cannot be used in the credit balance. , It is possible to prevent the settlement exceeding the credit balance from being performed. Then, when the use of the credit information is completed, the locked amount may be updated with the latest settable balance in the credit information, and the locked state may be released.

Further, by setting the validity period of the credit information in advance, the security of settlement can be further improved.

According to the preferred embodiment, when the mobile body reaches the communication area of the wireless communication base station located on the terminal side on the travel route, the credit information set for the mobile body is acquired and the credit information is obtained. Credit termination processing means for transmitting the credit information to the management device and erasing the credit information from the mobile unit is further provided.

As a result, the amount used in the service zone can be reflected in the credit information of the credit information management device, and the settlement is determined.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. 1 to 9 are diagrams according to a first embodiment of the present invention. FIG. 1 is an explanatory diagram showing an outline of the system configuration.

A plurality of roadside units 2 are installed along a road 1 as a “travel route”.
Thus, a service zone in which credit and settlement according to the present invention can be used is formed on the road 1. Here, a series of roadside machine groups 2 (a1) to 2 located at the service zone start end side
(An) forms a simplified credit information distribution zone for distributing simplified credit information. A series of roadside machine groups 2 (b1) to (bn) located in the middle part of the service zone are used to easily settle, for example, toll collection of a highway, a parking lot usage fee, or a usage fee of a gas station or the like. A payment processing zone is formed. A series of roadside machine groups 2 (c1) to 2 (cn) located at the service zone end side
Forms an end processing zone for reading and erasing the simple credit information described later set in the mobile body (automobile, more precisely, an on-vehicle device mounted on the automobile) 3 and ending the simple credit. are doing.

Each roadside device 2 is a DSRC communication base station and has a communication area 4. In the figure, the communication area 4 is shown only for some of the roadside devices 2 for convenience of explanation. Here, the communication area 4 adjacent to each roadside device 2 forming each zone does not need to be connected and continuous.

Each roadside unit 2 is communicable with each other via a dedicated line network 5 and is communicably connected to a management center 6. The management center 6 as a “credit information management device” manages credit information (credit balance and the like) of each mobile unit 3. When the mobile unit 3 enters the service zone, the roadside device 2 forming the simplified credit information distribution zone
According to (a1) to (an), transmission of simplified credit information is requested to the management center 6, and the simplified credit information transmitted from the management center 6 is included in each of the roadside devices 2 (a1) to (an). It is set to the mobile unit 3 from the roadside machine specified as the delivery source.

Here, as the management center 6, various configurations can be adopted. For example, the management center 6 may manage the master credit information by itself and issue simplified credit information in response to a credit request. Alternatively, the management center 6 may manage only the simplified credit information and communicate with the management center 6 and the master credit information. It may be configured to connect to another center for managing information via a network.

FIG. 2 is an explanatory diagram showing the operation of the simplified credit information distribution zone. For example, five roadside units 2 (a) in which a simplified credit information distribution zone is
1 shows the case where it is formed from 2 (a5). When the mobile unit 3 enters the simplified credit information distribution zone, a credit request for requesting the management center 6 to transmit the simplified credit information is issued from the roadside device 2 (a1) that first communicates with the mobile unit 3. The first roadside device 2 (a1) issues a credit request and specifies a roadside device (transfer source roadside device) from which the mobile unit 3 should receive simplified credit information transmitted from the management center 6. For example, designation of the mobile unit 3 can be performed by setting the identification information (ID) of the delivery source roadside device in the vehicle-mounted device of the mobile unit 3. The first roadside unit 2 (a1) designates the delivery source roadside unit in consideration of the moving speed of the mobile unit 3 and the processing time in the management center 6 and further with a predetermined margin. As will be described later, various methods can be adopted for selecting the delivery source roadside device 2.

Here, for convenience, the third roadside unit 2 (a
Assume that 3) was designated as the first delivery source. Before the moving body 3 leaves the communication area 4 of the roadside device 2 (a3),
If the credit result (simple credit information) is transmitted from the management center 6, the mobile unit 3 can receive the simple credit information from the roadside device 2 (a3) designated as the first delivery source. However, when the moving speed of the mobile unit 3 suddenly increases or the like, the mobile unit 3 (a3) as the delivery source receives the simplified credit information before receiving the simplified credit information from the management center 6.
Has passed through the communication area 4 of the roadside device 2 (a3),
Receiving the simplified credit information may fail. In this case, the further roadside machine 2 (a5) is designated as the new delivery source roadside machine to the mobile unit 3. The management center 6
Can be simultaneously transmitted to all roadside units 2 (a1) to (a5) by multicast or the like.
In some cases, the transmission of the credit result to the first roadside device 2 (a1) may be omitted. Alternatively, the credit result can be transmitted only to the roadside devices 2 (a3) and (a5) designated as the delivery source.

FIG. 3 shows the vehicle-mounted device 10 mounted on the moving body 3.
FIG. 2 is a block diagram illustrating a hardware configuration of a roadside device 2. The vehicle-mounted device 10 is configured as, for example, a microcomputer system including an arithmetic device 11, a DSRC communication unit 12, and a storage medium 13. The arithmetic unit 11 executes each process on the vehicle-mounted device side. The DSRC communication unit 12
The communication with the roadside device 2 is performed by the SRC. The storage medium 13
In addition to various information required for credit and settlement, the roadside machine 2
, The credit status indicating the status of the credit processing, the identification information (ID) of the roadside device 2 specified as the delivery source of the simple credit information, and the like. The simplified credit information includes a settleable balance extracted from the credit balance as an expected use amount and information indicating a validity period of the simplified credit information. The storage medium 13 is, for example, the arithmetic device 1
1 or the like, or a memory element mounted on a circuit board, or as a detachable member separate from the vehicle-mounted device 10 such as an IC card or a PC card. it can.

The roadside unit 2 includes, for example, an arithmetic unit 21, a DS
RC communication unit 22, dedicated line communication unit 23, secret information management unit 2
4 and a storage medium 25. The arithmetic unit 21 can execute various processes of the plurality of mobile units 3 in a multiplex manner. The DSRC communication unit 22 performs communication with the vehicle-mounted device 10 by DSRC. The dedicated line communication unit 23
For example, communication with the management center 6 and other roadside devices 2 is performed by TCP / IP or the like. Secret information management unit 24
Holds secret data such as a secret key necessary for performing encrypted communication, and has a countermeasure function such as erasing the secret data against unauthorized analysis. The storage medium 25 stores various programs executed by the arithmetic unit 21 and communication data.

Next, the processing flow of the mobile credit system according to the present embodiment will be described with reference to FIGS. FIG. 4 is an explanatory diagram showing the flow of the entire processing.

First, when the mobile unit 3 enters the service zone, one of the roadside units 2 (a1) among the roadside units 2 constituting the simplified credit information distribution zone formed at the service zone start end is mounted on the vehicle. Inquiry about the credit status to the device 10. First, the vehicle-mounted device 10 of the mobile unit 3
The roadside device that communicates with the mobile terminal is likely to be a roadside device located at the head of the simplified credit information distribution zone (on the approaching side of the mobile unit 3), but is not limited to this.

Here, the credit status includes "before credit" indicating a state before simple credit information is set, "in credit" indicating a waiting state for setting simple credit information, and completion of setting of simple credit information. There are three types, "after credit", indicating the status.
The credit status of the mobile 3 newly entering the service zone is “before credit”. The roadside device 2 (a1) that has confirmed that the credit status is “before credit” requests the management center 6 to transmit simplified credit information. Also,
The roadside device 2 (a1) designates the transfer source roadside device 2 (a2) to which the simplified credit information should be transferred to the mobile unit 3. The identification information of the designated roadside device 2 (a2) is held in the storage medium 13 of the vehicle-mounted device 10. The first roadside unit 2 (a1) that has designated the delivery source roadside unit changes the credit status of the mobile unit 3 from “before credit” to “in credit”.

The mobile unit 3 continues to move while confirming the identification information of each roadside device on the traveling route 1, and eventually reaches the communication area of the transfer source roadside device 2 (a2). Before the moving object 3 passes through the communication area of the transfer source roadside device 2 (a2),
In the management center 6, the confirmation of the credit status has been completed, and the simplified credit information has been transmitted from the management center 6 to each roadside device 2 including the transfer source roadside device 2 (a2).

The management center 6 sets, in the simplified credit information, only the amount of money expected to be used among the credit balances available to the mobile unit 3 as a settable balance. Since the amount set as the settleable balance is the amount for which settlement has not been determined, it is locked as an unusable amount. The simple credit information also includes information indicating the validity period. Note that the balance that can be settled can be appropriately set in consideration of various factors. For example, within a range not exceeding the credit balance, an amount obtained by adding a margin to the average settlement amount in the service zone can be set as the settlement balance, or a predetermined ratio of the credit balance is set as the settlement balance. You can also.

The transfer source roadside unit 2 (a2) inquires about the credit status of the mobile unit 3. The roadside device 2 (a2) that has confirmed that the credit status of the mobile unit 3 is “Crediting” and that the own device has been designated as the transfer source roadside device
The simplified credit information received from the management center 6 is set in the vehicle-mounted device 10 of the mobile unit 3. And the delivery source roadside machine 2 (a
2) Change the credit status of the mobile 3 to which the simplified credit information has been set from "in credit" to "after credit".

By setting the simplified credit information, the mobile unit 3 can use the settlement using the simplified credit information. The roadside device 2 (b) in the settlement processing zone is installed at, for example, a toll collection gate and performs simple settlement based on simple credit information in response to a settlement request from the vehicle-mounted device 10 of the mobile unit 3. . That is, the roadside device 2 (b) for settlement
Is updated by subtracting from the settlement available balance in the simplified credit information by the amount used by the mobile unit 3 to complete the tentative settlement. It should be noted that the settlement is performed using only the simple credit information without inquiring the management center 6 about the credit balance. However, since this is not reflected in the credit balance of the management center 6, this simple settlement is not fixed in a strict sense.

When the mobile unit 3 continues to move further and reaches the roadside machine 2 (c) at the service zone terminal side, the mobile unit 3
Transmits the simplified credit information held in the storage medium 13 to the roadside device 2 (c) in charge of the termination processing. The roadside device 2 (c) transmits the simplified credit information acquired from the vehicle-mounted device 10 to the management center 6. The management center 6 updates the credit balance by checking the settleable balance in the simplified credit information. Thereby, the settlement is settled. Roadside machine 2
(C) causes the simplified credit information held in the vehicle-mounted device 10 to be erased.

FIG. 5 is a flowchart showing a simplified credit process executed on each roadside device constituting the simplified credit information distribution zone. In the figure, steps are abbreviated as S.

First, the roadside device 2 is mounted on the vehicle
By confirming the credit status (S
1). If the credit status is "before credit request", a credit request is made to the management center 6 (S2), and the roadside device 2 from which the simplified credit information is delivered is set in the vehicle-mounted device 10 (S3). Then, the credit status is changed from "before credit" to "during credit" (S4).

On the other hand, when the credit status of the mobile unit 3 is "Crediting", the own device passes the simplified credit information by comparing the delivery source designation information held by the vehicle-mounted device 10 with the own device identification information. Judge whether it is specified as the source (S
5). If the own device is not specified as the delivery source, it is determined whether or not the roadside device 2 specified as the transfer source is in front of the own device (S6). If the roadside device 2 located earlier than the own device is designated as the delivery source, the process ends without doing anything.

On the other hand, when the roadside device 2 located in front of the own device is designated as the delivery source, the mobile unit 3 is placed before the designated delivery source roadside device receives the simplified credit information. Passed through the communication area of the source roadside machine,
This is the case where the transfer of simplified credit information has failed. Therefore, the roadside device 2 ahead of the own device is designated as the new delivery source to the vehicle-mounted device 10 (S10).

If it is determined in S5 that the own device has been designated as the delivery source of the simplified credit information, it is determined whether or not a credit result (simple credit information) has been received from the management center 6 (S7). ). If the simplified credit information has already been obtained, the simplified credit information is set in the vehicle-mounted device 10 and (S
8), the credit status is changed from “in credit” to “after credit”
(S9). On the other hand, if the own device is designated as the transfer source roadside device but the simplified credit information has not yet been obtained from the management center 6 (S7: NO), the roadside device 2 ahead of the own device is replaced with the new transfer source roadside device. (S1
0).

According to the processing shown in FIG. 5, the role as the delivery source of the simplified credit information is successively delivered as the mobile unit 3 moves. Therefore, it is not necessary to secure reliable communication with the specific roadside device 2.

FIG. 6 is a flow chart showing the process of designating the delivery source roadside device shown as S3 and S10 in FIG. First, the identification information (ID) of the own device is confirmed (S
21), and read a preset addition value Δn (S2).
2). The roadside device 2 having the identification information obtained by adding Δn to the own device ID is designated as the delivery source roadside device (S23). The addition value Δn is determined in consideration of, for example, the average moving speed of the mobile unit 3, the separation distance between the roadside units, the processing time at the management center 6, and the spare time. As a result, the delivery source roadside device can be quickly selected with relatively simple calculation.

FIG. 7 is a flowchart of a process executed by the management center 6. When a credit request from the roadside device 2 is received (S31: YES), a credit database that manages credit information is referred to (S32), and whether the credit frame related to the credit request is usable (S33) and the credit balance It is determined whether or not there is (S34).

For example, if the use of the credit line is not prohibited due to theft or the like and there is a credit balance, a settable balance to be cut out from the credit balance is calculated (S3).
5). Here, for example, the settlement available balance may be calculated as a predetermined percentage of the credit balance, or may be calculated as a fixed small amount according to the expected use amount.

Next, an expiration date for settlement is set using the settlement balance (S36), and simplified credit information is generated and notified to each roadside device 2 (S37). The settlement possible balance included in the simplified credit information is locked to be unusable within the credit balance (S38). As a result, it is possible to prevent the occurrence of settlement exceeding the credit balance.

When the credit line is set to prohibit use (S33: NO) or when there is not enough credit balance to set a settable amount (S34: NO), predetermined error processing is performed (S39). ), The on-board unit 10 is notified that the credit is not possible (S40). In this case, for example, the user selects cash settlement or attaches another storage medium 13 to the vehicle-mounted device 10 to use another credit line.

Next, FIG. 8 is a flowchart showing the simple settlement processing in the settlement processing zone. For example, the roadside device 2 (b) provided in the vicinity of an automatic toll for automatic toll collection, a service area, or the like functions as a settlement roadside device.

When the user makes a settlement request from the vehicle-mounted device 10 by using some service (S5).
1: YES), the settlement possible balance is confirmed with reference to the simplified credit information (S52). It is determined whether or not the amount is settled within the settable balance (S53). If the settable balance is less than the usage amount, the process is terminated as settled (S53).
54). If the amount is a settable amount, the usage amount is subtracted from the settable balance to be updated (S55), and a simple settlement is performed (S56). Then, it is confirmed whether or not the settlement processing has been normally performed (S57). If the settlement processing has not been normally performed, the balance that can be settled is returned and the settlement processing is rolled back (S58).

FIG. 9 is a flowchart showing a process of deleting simplified credit information in the end processing zone.

First, it is determined whether or not the vehicle has reached the communication area of the roadside device 2 (c) installed on the terminal side of the service zone (S6).
1) Or, it is determined whether or not the validity period of the simplified credit information has elapsed (S62). When the vehicle arrives at the roadside device 2 on the terminal side (S61: YES) or when the validity period of the simplified credit information has elapsed (S62: YES), the simplified credit information held in the storage medium 13 of the vehicle-mounted device 10 is transferred to the roadside device. The device 2 acquires the information (S63), and deletes the simple credit information from the vehicle-mounted device 10 (S64). Then, the simplified credit information acquired from the vehicle-mounted device 10 is transmitted from the roadside device 2 to the management center 6 (S6).
5). The management center 6 reflects the settlement balance in the simplified credit information on the credit balance (S66). Thereby, the settlement is settled. Then, the simplified credit information temporarily stored in the roadside device 2 is deleted, and the process is terminated (S67).

According to the present embodiment configured as described above, the following effects can be obtained.

First, since the information is transmitted by designating the roadside device 2 from which the simplified credit information is to be delivered, even when a communication system with a narrow communication area such as DSRC is adopted, the mobile device moves at high speed. Simple credit information can be transmitted to the body 3.

Secondly, even if the transfer of the simplified credit information fails due to a change in the moving speed of the mobile unit 3 or the like, the new delivery of the roadside machine 2 on the course is performed prior to the movement of the mobile unit 3. Since it is re-designated as a source, there is no need to consider secure communication with a specific roadside device as in the past.

Third, since settlement in the service zone is performed simply based on simple credit information, there is no need to refer to the management center 6 and credit / payment can be performed even for the mobile unit 3 that moves at high speed. Can be performed smoothly.

Fourth, instead of making the entire credit balance available, a part of the credit balance is set in the simplified credit information as a settleable balance, and the amount of the settleable balance is set to be unusable in the credit balance. Therefore, it is possible to prevent a settlement exceeding the credit balance.

Next, a second embodiment will be described with reference to FIG. In the following embodiments, the same components as those described in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. The feature of the present embodiment is that the moving speed of the moving body 3 is detected and the delivery source roadside device is designated.

That is, FIG. 10 is a flowchart of the delivery source designation processing according to the present embodiment. First, the moving speed of the moving body 3 is acquired from the vehicle-mounted device 10 or the speed monitoring device on the traveling route (FIG. 10). S71). In general, a control device of the moving body 3 (for example, an engine controller of an automobile)
Monitors the moving speed (vehicle speed) and performs engine control and the like. Therefore, for example, by transmitting the moving speed detected by the control device of the moving body 3 from the vehicle-mounted device 10 to the roadside device 2, the current moving speed can be obtained. Alternatively, it is also possible to detect the moving speed based on a signal from a speed monitoring device provided on the traveling route.

Based on the actual moving speed detected in this way and the processing time in the management center 6, the roadside machine 2 from which the simplified credit information is delivered is selected (S72), and the selected roadside is selected. The identification information of the device 2 is set in the vehicle-mounted device 10 of the mobile unit 3 (S73).

Next, FIG. 11 is a flowchart showing the third embodiment. A feature of the present embodiment is that a method of designating a transfer source roadside device is switched according to a distance to a point where settlement using simplified credit information can be performed.

As shown in FIG. 11, after confirming the identification information of the own device (S81), the distance from the own device to a point where simple settlement is possible, for example, the first service area, the toll collection gate, or the like is calculated (FIG. 11). S82). Then, it is determined whether or not the distance to the point where simple settlement is possible is longer than a predetermined distance L (S83). If the distance is longer than the predetermined distance L (S8).
3: YES), n1 is set to the addition value Δn (S84). On the other hand, when the distance between the own device (the mobile unit 3) and the simple settlement possible point is shorter than the predetermined distance L (S83: NO), n2 is set as the addition value Δn (S85). Here, a relationship of n2 <n1 is set. Then, n1 is added to the identification information of the own device.
Alternatively, by adding n2, the roadside device 2 as the delivery source of the simplified credit information is designated (S86). That is, when the distance between the mobile unit 3 and the simple settlement possible point is shortened, the designated interval of the transfer source roadside device is set short, and the chance of receiving the simple credit information is increased.

The present invention is not limited to the above embodiments. Those skilled in the art can make various modifications by adding, deleting, or changing components in the embodiment. For example, the flowcharts shown in the drawings merely show the flow of processing simply so as not to impair the understanding and implementation of the invention. Therefore, those skilled in the art can easily exchange, delete, or change the steps. be able to.

Further, in the case where the usage exceeds the estimated usage amount in the service zone and the available balance becomes insufficient, or when the user desires additional credit, it is possible to request acquisition of simplified credit information again. It can also be configured as follows.

Further, the balance that can be settled in the simplified credit information can be set in consideration of the user's desired conditions.

When the traveling route has a branch, the expected course of the mobile unit 3 is determined. Therefore, the delivery side roadside machine is designated at each branch destination, and the mobile unit 3 travels through the branch. After the route is determined, the designation of the delivery source roadside device that is not used may be released.

Furthermore, the simple credit information has been described as an example of the information to be transmitted to the mobile unit 3, but the present invention is not limited to this.
Various information can be transmitted.

[0068]

As described above, according to the information transmission system and the credit system for a mobile object according to the present invention, information is transmitted to a mobile object moving at a high speed via a radio communication base station having a limited communication area. can do. By transmitting the credit information, credit and settlement can be promptly performed.

[Brief description of the drawings]

FIG. 1 is an explanatory view schematically showing an entire system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a method of distributing simplified credit information.

FIG. 3 is a block diagram showing a hardware configuration of the vehicle-mounted device and the roadside device.

FIG. 4 is an explanatory diagram showing the entire flow from distribution, settlement, and erasure of simplified credit information.

FIG. 5 is a flowchart illustrating a simple credit process.

FIG. 6 is a flowchart showing a delivery source designation process.

FIG. 7 is a flowchart showing processing in the management center.

FIG. 8 is a flowchart showing a simple settlement process.

FIG. 9 is a flowchart showing a simplified credit ending process.

FIG. 10 is a flowchart of a delivery source designation process according to the second embodiment of the present invention.

FIG. 11 is a flowchart of a delivery source designation process according to the third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Road 2 Roadside machine 3 Moving object 4 Communication area 5 Dedicated line 6 Management center 10 OBE

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) H04Q 7/22 H04B 7/26 108B 7/34 H04Q 7/04 C (72) Inventor Yoshiyuki Hashikawa Toyosu, Toyosu, Koto-ku, Tokyo F-term (reference) in NTT DATA Corporation 3-3-3 5K067 AA33 BB03 DD36 EE02 EE10 EE16 EE24 EE44 EE57 FF02 FF03 GG01 GG11 HH11 JJ71

Claims (10)

[Claims] 1. A plurality of radios disposed on a traveling route of a moving body, each having a communication area on the traveling route, and capable of communicating with the moving body when the moving body is in each communication area. An information transmission system for a mobile body, comprising: a communication base station; and an information management device provided to be able to communicate with each of the wireless communication base stations and managing information to be transmitted to the mobile body. And information requesting means for requesting the information management device for information to be transmitted to the mobile unit; and transfer source specifying means for specifying a wireless communication base station to transfer information from the information management device to the mobile unit. And transmitting the information from the designated wireless communication base station to the mobile unit. 2. The delivery source designating means, until the information is transferred to the mobile unit, successively communicates the wireless communication base stations located on the course of the mobile unit in accordance with the movement of the mobile unit. Claim 1 designates as a delivery source wireless communication base station
3. The information transmission system for a mobile object according to claim 1. 3. A plurality of radios arranged on a traveling route of a moving body, each having a communication area on the traveling route, and capable of communicating with the moving body when the moving body is in each communication area. A communication base station and a mobile object credit system including a credit information management device that is provided so as to be able to communicate with each of the wireless communication base stations and manages credit information about the mobile object; Credit requesting means for requesting the credit information management device for credit information about the mobile object, and transfer source specifying means for specifying a wireless communication base station to transfer the credit information from the credit information management device to the mobile object. And a credit information setting means for passing the credit information from the designated wireless communication base station to the mobile body to set the credit information. 4. The delivery source designating means, according to the movement of the mobile unit, until the credit information is set in the mobile unit, the wireless communication base station located on the course of the mobile unit. 4. The mobile credit system according to claim 3, wherein the credit card is successively designated as a delivery source wireless communication base station. 5. The method according to claim 1, wherein the delivery source designation unit is configured to, when receiving the credit information from the credit information management device, based on a moving speed of the mobile object and a time required for credit confirmation by the credit information management device. Designating a wireless communication base station at a point where a mobile unit is predicted to arrive as the transfer source wireless communication base station, and passing the credit information from the previously specified wireless communication base station to the mobile unit 4. The mobile credit system according to claim 3, wherein when the communication fails, a new wireless communication base station located on the path of the mobile is redesignated as the transfer source wireless communication base station. 5. 6. A payment processing unit for performing payment in response to a payment request from the mobile unit, wherein the payment processing unit simply performs payment based on the credit information set in the mobile unit. The mobile credit system according to any one of claims 3 to 5. 7. When the mobile body reaches a communication area of a wireless communication base station located on a terminal side on the travel route,
7. A credit ending processing means for acquiring the credit information set in the mobile unit, transmitting the credit information to the credit information management device, and deleting the credit information from the mobile unit. A credit system for a mobile unit according to any one of the above. 8. The credit information management device checks a credit balance of the mobile unit in response to a request from the credit request unit, and sets a part of the credit balance as a settable balance in the credit information. The credit system for a mobile object according to claim 3. 9. The credit information management device, when the settable balance is set in the credit information, disables an amount of the settable balance in the credit balance in a locked state, and uses the credit information. 9. The mobile credit system according to claim 8, wherein, when is completed, the locked amount is updated with the latest settable balance in the credit information, and the locked state is released. 10. The credit information from the credit information management device has a predetermined validity period set in advance.
A credit system for a mobile object according to claim 9.