JP4338901B2 - Mobile information transmission system and credit system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile information transmission system and a credit system suitable for an automatic toll collection system on a highway, for example.
[0002]
[Prior art]
For example, in an intelligent transportation system called ITS (Intelligent Transport Systems), one of the communication systems between roadside devices installed on roads and automobiles is a narrow-area communication system called DSRC (Dedicated Short Range Commnication). Use is under consideration.
[0003]
As a concrete system using DSRC, ETC (Registered trademark) A toll road automatic toll collection system and a parking lot utilization management system called (Electronic Toll Collection System) have been proposed. Conventional ETC (Registered trademark) Then, one wireless base station (hereinafter referred to as a roadside device) is installed beside or above a specific place on the road, and a wireless communication terminal (hereinafter referred to as an in-vehicle device) is mounted on each automobile. When a vehicle enters a 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.
[0004]
Currently, ETC (Registered trademark) DSRC between such a single roadside device and the vehicle-mounted device is defined in “Toll Road Automatic Toll Collection System Standard ARIB STD-T55 Version 1.1”.
[0005]
[Problems to be solved by the invention]
An automobile (on-vehicle device) traveling on an expressway may make a payment using a credit card or the like at a toll gate on the expressway, a shop in a service area, a gas station, or the like. When using a credit card, it is necessary to make a payment while checking the credit balance and the like between the credit card usage location and the management center that manages the credit information.
[0006]
However, the DSRC communication area of a single roadside unit is a narrow one with a total length of only about several tens of meters. Therefore, in an automatic toll collection system on 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 to 2 seconds), there is a possibility that sufficient time for inquiring the credit status to the management center cannot be obtained. Therefore, conventional ETC (Registered trademark) When a credit check is performed on the management center with a single roadside device, the vehicle needs to travel at a sufficiently low speed before entering the communication area of the roadside device, or to temporarily stop there. is there. However, as a result, there arises a problem that the purpose of the automatic toll collection system that eliminates traffic congestion due to toll gates cannot be sufficiently achieved.
[0007]
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a mobile credit system capable of giving credit information to an automobile traveling at high speed. Another object of the present invention is to provide a mobile credit system that provides credit information to a mobile that moves at high speed and enables simple settlement.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the mobile information transmission system and the credit system according to the present invention, a plurality of radio communication base stations are arranged on the travel route of the mobile body. Each of these wireless communication base stations has a respective communication area, and can communicate with the mobile body when the mobile body is located in the respective communication area. . The credit information management device manages credit information of a mobile body as information to be transmitted to the mobile body, and is provided so as to be able to communicate with each radio communication base station.
[0009]
The credit request means communicates with the mobile body via any one of the wireless communication base stations, and requests credit information about the mobile body from the credit information management apparatus. The delivery source designation means designates a radio communication base station to which the credit information from the credit information management device is to be delivered to the mobile unit. The credit information setting means delivers and sets credit information to the mobile unit via the radio communication base station designated as the delivery source.
[0010]
That is, a service zone is formed on a travel route by a series of wireless communication stations. When a mobile object enters this service zone, credit information is transmitted via a wireless communication base station located on the start side of the travel route. Credit information is requested from the management device. For the mobile unit, a radio communication base station that should receive credit information from the credit information management device is designated. While the mobile unit is moving on the travel route, the credit information management device checks the credit balance of the mobile unit and transmits the credit information to each radio communication base station. The mobile body continues to move until the credit information is transmitted from the credit information management device, and eventually enters the communication area of the radio communication base station designated as the delivery source. The delivery source radio communication base station delivers and sets credit information to the mobile unit. As a result, the mobile unit can make payment based on the set credit information.
[0011]
In a preferred embodiment, the delivery source designating means sequentially sets the wireless communication base stations located on the course of the mobile body according to the movement of the mobile body until the credit information is set for the mobile body. Designated as a wireless communication base station.
[0012]
Each time the mobile unit reaches the communication area of each radio communication base station, it can request delivery of credit information. A radio communication base station that has not received the credit information from the credit information management device cannot deliver the credit information to the mobile unit. When the mobile body reaches the communication area of the radio communication base station that has received the credit information from the credit information management device, the mobile body can receive the credit information.
[0013]
In a preferred embodiment, the delivery source designating unit is configured so that the mobile unit arrives when receiving the credit information from the credit information management device based on the moving speed of the mobile unit and the time required for the credit confirmation by the credit information management device. The wireless communication base station at the point predicted to be present is designated as the wireless communication base station of the delivery source. And when delivery of credit information from the previously specified radio communication base station to the mobile unit fails, a new radio communication base station located on the path of the mobile unit is used as the transfer source radio communication base station. Respecify.
[0014]
A predetermined value can be set in advance for the moving speed of the moving body and the credit confirmation time in the credit information management device, or the moving speed of the moving body can be acquired and taken into consideration. Wireless communication having a communication area that covers the predicted arrival point by predicting the point where the mobile body arrives within the time from when the credit request is sent to the credit information management device until the credit information is transmitted. A base station may be set as a delivery source. If the speed of the mobile unit changes and the prediction fails and the credit information delivery fails, the credit information can be set in the mobile unit by re-designating the previous wireless communication base station as the delivery source. .
[0015]
In a preferred embodiment, payment processing means for making a payment in response to a payment request from the mobile body is further provided, and the payment processing means simply makes a payment based on credit information set in the mobile body.
[0016]
When performing strict payment, it is necessary to obtain the latest credit information at the time of payment request from the credit information management device. However, since the credit information set in the mobile body is relatively recent, it is possible to make a simple settlement using this credit information.
[0017]
Then, by setting a part of the credit balance instead of the entire credit balance in the credit information as a balance that can be settled, the security of the settlement can be improved. Specifically, for example, the amount of money that is expected to be used in the service zone such as tolls on the expressway, refueling charges, etc. is set in the credit information as the balance that can be settled, and the amount that is set in this settlement balance is credited If it is locked in the balance so that it cannot be used, it is possible to prevent the settlement exceeding the credit balance. Then, when the use of the credit information is finished, the amount placed in the locked state may be updated with the latest settleable balance in the credit information to release the locked state.
[0018]
In addition, by setting the valid period of the credit information in advance, it is possible to further improve the security of settlement.
[0019]
According to a preferred embodiment, when the mobile unit reaches the communication area of the radio communication base station located on the terminal side on the travel route, the credit information set in the mobile unit is acquired and the credit information management device Credit termination processing means for transmitting and erasing the credit information from the mobile body is further provided.
[0020]
Thereby, the usage amount in the service zone can be reflected in the credit information of the credit information management device, and the settlement is confirmed.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 9 are diagrams according to the first embodiment of the present invention. FIG. 1 is an explanatory diagram showing an outline of the system configuration.
[0022]
A plurality of roadside devices 2 are installed along the road 1 as the “traveling route”, and a service zone in which credit / settlement according to the present invention can be used is formed on the road 1 by the series of roadside devices 2. ing. Here, a series of roadside machine groups 2 (a1) to (an) located on the service zone start end side form a simple credit information distribution zone for distributing simple credit information. A series of roadside machine groups 2 (b1) to (bn) located in the middle of the service zone is used for simple payment of highway toll collection, parking lot usage fees, gas station usage fees, etc. A payment processing zone is formed. A series of roadside machine groups 2 (c 1) to 2 (cn) located on the service zone end side are described later, which are set in a mobile body (automobile, more precisely, an in-vehicle device mounted on the automobile) 3. An end processing zone is formed in which the credit information is read and deleted to end the simple credit.
[0023]
Each roadside device 2 is a DSRC communication base station and has a communication area 4. In the figure, for convenience of explanation, the communication area 4 is shown only for some roadside devices 2. Here, the communication areas 4 adjacent to each roadside device 2 forming each zone need not be connected and continuous.
[0024]
The roadside devices 2 can communicate with each other via the dedicated line network 5 and are also communicably connected to the management center 6. The management center 6 as a “credit information management device” manages credit information (credit balance, etc.) of each mobile unit 3. When the mobile unit 3 enters the service zone, the roadside devices 2 (a1) to (an) forming the simple credit information distribution zone request the management center 6 to transmit the simple credit information, and the management center 6 transmits the data. The simple credit information thus set is set in the moving body 3 from the roadside machine designated as the delivery source among the roadside machines 2 (a1) to (an).
[0025]
Here, various configurations can be employed as the management center 6. For example, the management center 6 may manage the master credit information by itself and issue simple credit information in response to a credit request, or the management center 6 may manage only the simple credit information, and the management center 6 and the master credit information. You may make it the structure connected with the other center which manages information via a network.
[0026]
FIG. 2 is an explanatory diagram showing the operation of the simple credit information distribution zone. The case where the simple credit information distribution zone is formed from, for example, five roadside machines 2 (a1) to 2 (a5) arranged at a predetermined distance from each other is shown. When the mobile unit 3 enters the simple credit information distribution zone, a credit request for requesting the management center 6 to transmit simple credit information is issued from the roadside device 2 (a1) that first communicates with the mobile unit 3. The first roadside machine 2 (a1) makes a credit request and designates a roadside machine (delivery source roadside machine) to which the mobile unit 3 should receive the simple credit information transmitted from the management center 6. For example, the mobile body 3 can be designated by setting identification information (ID) of the delivery source roadside device in the vehicle-mounted device of the mobile body 3. The first roadside machine 2 (a1) designates the delivery source roadside machine in consideration of the moving speed of the moving body 3 and the processing time in the management center 6 and further allowing for a predetermined margin. As will be described later, various methods can be employed for selecting the delivery source roadside machine 2.
[0027]
Here, for the sake of convenience, it is assumed that the third roadside machine 2 (a3) is designated as the first delivery source. If the credit result (simple credit information) from the management center 6 has been transmitted before the mobile unit 3 leaves the communication area 4 of the roadside device 2 (a3), the mobile unit 3 will have the first delivery source. Simple credit information can be received from the roadside machine 2 (a3) designated as. However, when the moving speed of the moving body 3 suddenly increases or the like, the moving body 3 is moved to the roadside machine before the delivery-side roadside machine 2 (a3) receives the simple credit information from the management center 6. 2 (a3) may pass through the communication area 4 and reception of the simple credit information may fail. In this case, the further roadside machine 2 (a5) is designated to the mobile body 3 as a new delivery source roadside machine. The credit result from the management center 6 can be transmitted simultaneously to all the roadside devices 2 (a1) to (a5) by multicast or the like. In some cases, the transmission of the credit result to the first roadside machine 2 (a1) can be omitted. Alternatively, the credit result can be transmitted only to the roadside devices 2 (a3) and (a5) designated as the delivery source.
[0028]
FIG. 3 is a block diagram illustrating a hardware configuration of the vehicle-mounted device 10 and the roadside device 2 mounted on the moving body 3. The vehicle-mounted device 10 is configured as a microcomputer system including, for example, a calculation device 11, a DSRC communication unit 12, and a storage medium 13. The arithmetic device 11 executes each process on the vehicle-mounted device side. The DSRC communication unit 12 communicates with the roadside device 2 by DSRC. The storage medium 13 is designated as the simple credit information received from the roadside device 2 of the delivery source, the credit status indicating the credit processing status, and the simple credit information delivery source in addition to various information necessary for credit / settlement. The identification information (ID) of the roadside machine 2 is stored. The simple credit information includes a settleable balance taken out from the credit balance as an expected use amount and information indicating an effective period of the simple credit information. The storage medium 13 can be constituted by, for example, a memory element mounted on a circuit board together with the arithmetic device 11 or the like, or is separate from the vehicle-mounted device 10 known as an IC card or a PC card. It can also be configured as a detachable member.
[0029]
The roadside machine 2 includes, for example, an arithmetic device 21, a DSRC communication unit 22, a dedicated line communication unit 23, a secret information management unit 24, and a storage medium 25. The arithmetic device 21 can execute various processes of the plurality of moving bodies 3 in a multiplexed manner. The DSRC communication unit 22 performs communication by DSRC with the vehicle-mounted device 10. The leased line communication unit 23 communicates with the management center 6 and other roadside devices 2 by, for example, TCP / IP. The secret information management unit 24 has a counter function such as holding secret data such as a secret key necessary for performing encrypted communication and erasing the secret data against illegal analysis. The storage medium 25 stores various programs executed by the arithmetic device 21 and communication data.
[0030]
Next, based on FIGS. 4-9, the flow of a process of the credit system for mobile bodies by this Embodiment is demonstrated. FIG. 4 is an explanatory diagram showing the overall processing flow.
[0031]
First, when the mobile unit 3 enters the service zone, any one of the roadside devices 2 (a1) constituting the simple credit information distribution zone formed on the service zone start side is connected to the vehicle-mounted device 10. Inquires about the credit status. In addition, although the roadside machine which communicates with the onboard equipment 10 of the mobile body 3 first is likely to be a roadside machine located in the head side (the entrance direction side of the mobile body 3) of a simple credit information distribution zone, It is not limited to.
[0032]
Here, the credit status indicates “before credit” indicating the state before the simple credit information is set, “in credit” indicating the waiting state for setting the simple credit information, and the setting end state of the simple credit information. There are three types of "after credit". The credit status of the mobile unit 3 that has newly entered 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 the simple credit information. The roadside machine 2 (a1) designates the roadside machine 2 (a2) that is the delivery source to which the simple credit information is to be delivered 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 machine 2 (a1) designating the delivery source roadside machine changes the credit status of the mobile unit 3 from “before credit” to “under credit”.
[0033]
The moving body 3 continues to move while confirming the identification information of each roadside machine on the travel route 1, and eventually reaches the communication area of the delivery source roadside machine 2 (a2). Before the mobile unit 3 passes through the communication area of the delivery source roadside device 2 (a2), the management center 6 confirms the credit status, and the simplified credit information is received from the management center 6 by the delivery source roadside device 2 ( It is transmitted to each roadside machine 2 including a2).
[0034]
The management center 6 sets, in the simple credit information, only the amount that is expected to be used among the credit balances that can be used by the mobile unit 3 as the balance that can be settled. Since the amount set as the balance that can be settled is an amount for which settlement is not yet confirmed, it is locked as an unusable amount. The simple credit information includes information indicating the validity period. Note that the settleable balance can be appropriately set in consideration of various factors. For example, within a range that does not exceed the credit balance, it is possible to set the average settlement amount in the service zone with a slight margin as the settlement balance, or set a predetermined percentage of the credit balance as the settlement balance You can also
[0035]
The delivery source roadside machine 2 (a2) inquires about the credit status of the mobile unit 3. The roadside machine 2 (a2) confirming that the credit status of the mobile unit 3 is “in credit” and that the own machine is designated as the delivery source roadside machine, receives the simplified credit information received from the management center 6. The vehicle-mounted device 10 of the moving body 3 is set. And the delivery origin roadside machine 2 (a2) changes the credit status of the mobile body 3 to which the simple credit information is set from “in credit” to “after credit is completed”.
[0036]
By setting the simple credit information, the mobile unit 3 can use the settlement using the simple credit information. The roadside machine 2 (b) in the payment processing zone is installed, for example, at a toll collection gate or the like, and performs simple payment based on simple credit information in response to a payment request from the vehicle-mounted device 10 of the mobile body 3. . In other words, the roadside machine 2 (b) for settlement reduces the amount that can be settled in the simple credit information by the amount used by the mobile unit 3 and updates it to complete the settlement. It should be noted that the settlement is made only with the simple credit information without inquiring the credit balance to the management center 6. 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.
[0037]
When the mobile unit 3 continues to move and reaches the roadside unit 2 (c) on the service zone end side, the vehicle-mounted device 10 of the mobile unit 3 is in charge of ending the simple credit information held in the storage medium 13 To the roadside machine 2 (c). The roadside device 2 (c) transmits the simple credit information acquired from the vehicle-mounted device 10 to the management center 6. The management center 6 checks the balance that can be settled in the simple credit information and updates the credit balance. As a result, settlement is confirmed. Further, the roadside device 2 (c) deletes the simple credit information held in the vehicle-mounted device 10.
[0038]
FIG. 5 is a flowchart showing a simple credit process executed on each roadside machine constituting the simple credit information distribution zone. In the figure, step is abbreviated as S.
[0039]
First, the roadside device 2 confirms the credit status by communicating with the vehicle-mounted device 10 of the moving body 3 (S1). When the credit status is “before credit request”, a credit request is made to the management center 6 (S2), and the roadside device 2 that is the source of the simplified credit information is set in the vehicle-mounted device 10 (S3). Then, the credit status is changed from “before credit” to “in credit” (S4).
[0040]
On the other hand, when the credit status of the mobile unit 3 is “in credit”, the own device is designated as the delivery source of the simple credit information by comparing the delivery source designation information held by the in-vehicle device 10 with the own device identification information. It is determined whether it has been performed (S5). If the own machine is not designated as the delivery source, it is determined whether or not the roadside machine 2 designated as the delivery source is in front of the own machine (S6). If the roadside device 2 positioned before the own device is designated as the delivery source, the processing is terminated without doing anything.
[0041]
On the other hand, when the roadside machine 2 located in front of the own machine is designated as the delivery source, the mobile 3 is the delivery source before the designated delivery source roadside machine receives the simple credit information. This is a case where the passing of the simple credit information fails due to passing through the communication area of the roadside machine. Therefore, the roadside device 2 ahead of the own device is designated to the vehicle-mounted device 10 as a new delivery source (S10).
[0042]
In S5, when it is determined that the own device is designated as the delivery source of the simple credit information, it is determined whether or not a credit result (simple credit information) is received from the management center 6 (S7). If the simple credit information has already been obtained, the simple credit information is set in the vehicle-mounted device 10 (S8), and the credit status is changed from "in credit" to "after credit" (S9). On the other hand, when the own machine is designated as the delivery source roadside machine but the simple credit information has not yet been obtained from the management center 6 (S7: NO), the roadside machine 2 ahead of the own machine is set as the new delivery source roadside machine. The machine is designated (S10).
[0043]
With the processing shown in FIG. 5, the role as the delivery source of the simple credit information is successively delivered as the mobile body 3 moves. Therefore, it is not necessary to ensure reliable communication with the specific roadside device 2.
[0044]
FIG. 6 is a flowchart showing the designation processing of the delivery source roadside machine indicated as S3 and S10 in FIG. First, identification information (ID) of the own device is confirmed (S21), and a preset addition value Δn is read (S22). And the roadside machine 2 which has the identification information obtained by adding only (DELTA) n to own apparatus ID is designated as a delivery origin roadside machine (S23). The added value Δn is determined in consideration of, for example, the average moving speed of the moving body 3, the separation distance between the roadside devices, the processing time and margin time at the management center 6, and the like. Thereby, a delivery origin roadside machine can be selected quickly by comparatively simple calculation.
[0045]
FIG. 7 is a flowchart of processing executed by the management center 6. When a credit request from the roadside device 2 is received (S31: YES), the credit database for managing credit information is referred to (S32), whether the credit frame related to the credit request is available (S33) and the credit balance It is determined whether or not there is (S34).
[0046]
For example, when the use of the credit limit is not prohibited due to theft or the like and there is a credit balance, a settlement possible balance to be cut out from the credit balance is calculated (S35). Here, for example, the settleable balance can be calculated as an amount of a predetermined ratio of the credit balance, or can be calculated as a certain small amount corresponding to the expected usage amount.
[0047]
Next, an expiry date that can be settled by using the settleable balance is set (S36), simple credit information is generated and notified to each roadside device 2 (S37). The balance that can be settled included in the simple credit information is locked to be unusable in the credit balance (S38). As a result, it is possible to prevent the occurrence of settlement exceeding the credit balance.
[0048]
In addition, when the credit limit is set to be prohibited (S33: NO) or when there is no credit balance that cannot be set as a settlement amount (S34: NO), predetermined error processing is performed (S39) The vehicle-mounted device 10 is notified that it is impossible (S40). In this case, for example, the user selects payment by cash, or attaches another storage medium 13 to the vehicle-mounted device 10 and uses another credit frame.
[0049]
Next, FIG. 8 is a flowchart showing a simple settlement process in the settlement process zone. For example, the roadside machine 2 (b) provided in the vicinity of an automatic toll gate for highway usage fees or in a service area functions as a settlement roadside machine.
[0050]
When a payment request is made from the vehicle-mounted device 10 by the user using some service (S51: YES), the balance available for payment is confirmed with reference to the simple credit information (S52). It is determined whether or not it is an amount that can be settled within the balance that can be settled (S53). If the amount is settleable, the usage amount is subtracted from the settleable balance and updated (S55), and simple settlement is performed (S56). Then, it is confirmed whether or not the payment process has been normally performed (S57). If the payment process has not been normally performed, the settleable balance is returned to the original, and the payment process is rolled back (S58).
[0051]
FIG. 9 is a flowchart showing the process of deleting the simple credit information in the end process zone.
[0052]
First, it is determined whether or not the communication area of the roadside device 2 (c) installed on the terminal side of the service zone has been reached (S61), or whether or not the validity period of the simple credit information has passed (S62). . When the terminal side roadside unit 2 is reached (S61: YES) or when the validity period of the simple credit information has passed (S62: YES), the simple credit information held in the storage medium 13 of the vehicle-mounted device 10 is transferred to the roadside. While the machine 2 acquires (S63), the simple credit information is deleted from the vehicle-mounted device 10 (S64). And the simple credit information acquired from the onboard equipment 10 is transmitted to the management center 6 from the roadside machine 2 (S65). The management center 6 reflects the settleable balance in the simple credit information in the credit balance (S66). As a result, settlement is confirmed. And the simple credit information temporarily memorize | stored in the roadside machine 2 side is erase | eliminated, and a process is complete | finished (S67).
[0053]
According to the present embodiment configured as described above, the following effects can be obtained.
[0054]
First, because the information is transmitted by designating the roadside device 2 that is the delivery source of the simple credit information, even when a communication method with a narrow communication area such as DSRC is adopted, the mobile unit 3 that moves at high speed is used. Simple credit information can be transmitted.
[0055]
Secondly, even if the transfer of the simple credit information fails due to a change in the moving speed of the mobile body 3, etc., the roadside machine 2 on the route is re-established as a new delivery source prior to the movement of the mobile body 3. Therefore, it is not necessary to consider ensuring secure communication with a specific roadside device as in the prior art.
[0056]
Third, since settlement within the service zone is simply performed based on simple credit information alone, there is no need to make an inquiry to the management center 6 and smooth credit / settlement can be achieved even with the mobile 3 moving at high speed. It can be carried out.
[0057]
Fourthly, instead of making the entire credit balance available, a part of it is set in the simple credit information as a balance that can be settled, and the amount of the balance that can be settled is set to be unusable in the credit balance. It is possible to prevent settlement that exceeds the credit balance.
[0058]
Next, a second embodiment will be described based on FIG. In the following embodiments, the same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. The feature of this embodiment is that the moving speed of the moving body 3 is detected and a delivery source roadside machine is designated.
[0059]
That is, FIG. 10 is a flowchart of the delivery source designation process 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 travel route (S71). In general, a control device (for example, an automobile engine controller or the like) for the moving body 3 monitors the moving speed (vehicle speed) and performs engine control or the like. Therefore, for example, the current moving speed can be obtained 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. Or it is also possible to detect a moving speed based on the signal from the speed monitoring apparatus provided on the travel route.
[0060]
Based on the actual moving speed detected in this way and the processing time at the management center 6, the roadside machine 2 that is the source of the simplified credit information is selected (S72), and the roadside machine 2 of the selected roadside machine 2 is selected. The identification information is set in the vehicle-mounted device 10 of the moving body 3 (S73).
[0061]
Next, FIG. 11 is a flowchart showing the third embodiment. The feature of this embodiment is that the designation method of the delivery source roadside machine is switched according to the distance to the point where the settlement using the simple credit information can be performed.
[0062]
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 payment is possible, for example, the first service area, the toll collection gate, etc. is calculated (S82). Then, it is determined whether or not the distance to the point where simple settlement is possible is greater than or equal to the predetermined distance L (S83). If the distance is greater than or equal to the predetermined distance L (S83: YES), n1 is set to the added value Δn. (S84). On the other hand, when the distance from the own device (the mobile body 3) to the simple settlement possible point is shorter than the predetermined distance L (S83: NO), n2 is set as the added value Δn (S85). Here, the relationship of n2 <n1 is set. And the roadside machine 2 used as the delivery source of simple credit information is designated by adding n1 or n2 to the identification information of an own machine (S86). That is, when the distance between the mobile 3 and the simple settlement possible point becomes short, the designated interval of the delivery source roadside machine is set short, and the opportunity for receiving the simple credit information is increased.
[0063]
In addition, this invention is not limited to each embodiment mentioned above. A person skilled in the art can make various modifications by adding, deleting, or changing components in the embodiment. For example, the flowchart shown in the drawing is merely a simple flow of processing so as not to impair understanding and implementation of the invention, and those skilled in the art can easily replace, delete, and change steps. be able to.
[0064]
In addition, if usage exceeds the expected usage amount within the service zone and there is a shortage in the balance that can be settled, or if the user desires additional credit, it is possible to request acquisition of simple credit information again You can also
[0065]
Further, the balance that can be settled in the simple credit information can be set in consideration of the user's desired conditions.
[0066]
In addition, when there is a branch in the travel route, the expected course of the mobile unit 3 is determined. Therefore, a roadside machine as a delivery source is designated for each branch destination, and the mobile unit 3 passes through the branch to determine the travel route. After that, it can be configured to cancel the designation of the delivery-source roadside machine that is not used.
[0067]
Furthermore, although simple credit information has been described as an example of information to be transmitted to the mobile body 3, the present invention is not limited to this, and various information can be transmitted.
[0068]
【The invention's effect】
As described above, according to the mobile information transmission system and the credit system according to the present invention, information can be transmitted to a mobile that moves at high speed via a radio communication base station with a limited communication area. By transmitting credit information, credit and settlement can be performed promptly.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an outline of an entire system according to an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a method for distributing simple 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 an overall flow from distribution, settlement, and deletion of simple credit information.
FIG. 5 is a flowchart showing a simple credit process.
FIG. 6 is a flowchart showing delivery source designation processing.
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 simple credit end process.
FIG. 10 is a flowchart of delivery source designation processing according to the second embodiment of the present invention.
FIG. 11 is a flowchart of delivery source designation processing according to the third embodiment of the present invention;
[Explanation of symbols]
1 road
2 roadside machine
3 moving objects
4 Communication area
5 Private line
6 management center
10 Onboard equipment

Claims (8)

A plurality of wireless communication base stations that are arranged on a travel route of a mobile body, have respective communication areas on the travel route, and can communicate with the mobile body when the mobile body is in each communication area; In a mobile credit system comprising a credit information management device that is provided so as to be communicable with the respective radio communication base stations and manages credit information about the mobile,
Credit request means for communicating with the mobile and requesting credit information about the mobile from the credit information management device;
Delivery source designation means for designating a radio communication base station to which credit information from the credit information management device should be delivered to the mobile unit;
Credit information setting means for delivering and setting the credit information from the designated radio communication base station to the mobile;
When the mobile body reaches a communication area of a radio communication base station located on the terminal side on the travel route, the credit information set in the mobile body is acquired and transmitted to the credit information management device Credit termination processing means for erasing the credit information from the mobile body;
A mobile credit system, comprising: The delivery source designating unit sequentially sets the wireless communication base stations located on the route of the mobile body according to the movement of the mobile body until the credit information is set for the mobile body. The mobile credit system according to claim 1, which is designated as a radio communication base station. The delivery source designating unit is configured to receive the credit information from the credit information management device based on a moving speed of the mobile body and a time required for credit confirmation in the credit information management device. When the wireless communication base station at the point where it is predicted to be specified is designated as the wireless communication base station of the delivery source, and the delivery of the credit information from the previously specified wireless communication base station to the mobile unit fails 2. The mobile credit system according to claim 1 , wherein a new radio communication base station located on the path of the mobile is re-designated as the transfer-source radio communication base station. A payment processing means for performing payment in response to a payment request from the mobile body;
4. The mobile credit system according to claim 1, wherein the settlement processing unit performs a simple settlement based on the credit information set in the mobile body. 5. The credit information management apparatus checks the credit balance of the moving body in response to a request from the credit request means, claims 1 to be set in the credit information part of the credit balance as payable balance 4. The mobile credit system according to any one of 4 above. The credit information management device, when the settable balance is set in the credit information, makes the amount of the settleable balance in the credit balance unusable in the locked state, and when the use of the credit information is finished The credit system for a mobile unit according to claim 5 , wherein the amount placed in the locked state is updated with the latest settleable balance in the credit information, and the locked state is released. Wherein the credit information from the credit information management apparatus, a moving body credit system according to any one of claims 1 to 6 in advance predetermined effective period is set. In accordance with a settlement request from the mobile body, simple settlement means for performing simple settlement by deducting from the set settlement balance of the credit information without inquiring of the credit balance to the credit information management device, Provided,
  The credit end processing means reflects the settleable balance in the credit information to the credit balance managed by the credit information management device by transmitting the acquired credit information to the credit information management device. The mobile object credit system according to claim 1, wherein:

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