WO2008044293A1

WO2008044293A1 - Communication managing device, communication terminal device, communication method, communication program and computer readable recording medium

Info

Publication number: WO2008044293A1
Application number: PCT/JP2006/320327
Authority: WO
Inventors: Hiroaki Shibasaki
Original assignee: Pioneer Corporation
Priority date: 2006-10-11
Filing date: 2006-10-11
Publication date: 2008-04-17
Also published as: JPWO2008044293A1; JP4845968B2

Abstract

A communication terminal device (120) and a communication managing device (110) interactively communicate with each other. When the detecting unit (121) detects the start-up of the communication terminal device through a detecting unit (121), a generating unit (122) newly generates identification information. The generated identification information is stored at an identification information storing unit (124) through a storage processing unit (123) and the communication managing device (110) is notified of the information through a notifying unit (125). The communication managing device (110) receives the notice of identification information through a reception unit (112) from the communication device (120) in which communication has been established. The identification information is stored at the identification information storing unit (114) through the storage processing unit (113). Based on this identification information, a communication unit (115) carries out the transmission and reception of information with the communication terminal device (120). Incidentally, the communication terminal device (120) erases the identification information through an erasing unit (127) from the identification information storing unit (124) when the detecting unit (121) detects the stop of the communication terminal device.

Description

Specification

Communication management device, communication terminal device, communication method, communication program, and computer-readable recording medium

Technical field

[0001] The present invention relates to a communication management device that transmits and receives information to and from a communication terminal device located in a communication area, a communication terminal device that is located in a communication area of the communication management device, and a communication method in these devices, The present invention relates to a communication program and a computer-readable recording medium. However, the use of the present invention is not limited to the above-described communication management device, communication terminal device, communication method, communication program, and computer-readable recording medium. Background art

Conventionally, a navigation device scrolls and displays a map around its own vehicle position according to the travel of the vehicle, and searches for a guidance route to the destination and displays it on the map. Guide to the ground. Among such navigation devices, navigation devices compatible with the Road Traffic Information Communication System (VICS) receive road traffic information (VICS information) such as traffic jams, accidents, and regulations provided by VICS and display them on the map in real time. It has a display function.

[0003] By using VICS, drivers can get to their destinations in a short time by avoiding congested roads, restricted traffic roads, and accident roads. In addition, beacons such as optical beacons and radio beacons are placed on the road as communication information management devices for navigation devices to use VIC s information. VICS information is also transmitted for these beacon powers, and the navigation device can receive the VICS information (for example, see Patent Document 1 below).

[0004] In addition, the navigation device can also transmit (uplink) information about the vehicle such as a traveling speed and a traveling position, not only by receiving VICS information to which the beacon power is transmitted. The beacon can acquire more detailed traffic information by receiving information about the navigation device power vehicle. Furthermore, these pieces of information can be fed back to the navigation device as the transmission source. Patent Document 1: Japanese Patent Application Laid-Open No. 2006-3292

Disclosure of the invention

Problems to be solved by the invention

However, in order to transmit VI CS information to a specific navigation device as in the above-mentioned Patent Document 1, beacon power requires identification information such as an ID to identify the navigation device. . Therefore, in the conventional technology such as Patent Document 1 described above, for example, a method is used in which a fixed corresponding ID is assigned to one navigation device, and VICS information is transmitted based on the assigned ID. RU

[0007] In the case of the above-described method, by using a fixed ID, it is possible to completely capture the behavior of the navigation device, and as a result, the behavior of the user of the navigation device is specified. Therefore, an example is the problem that some users may be disgusted by the identification of individuals with anonymity.

[0008] In addition, personal information is accumulated in the beacon because information related to specific users of each navigation device is collected. Therefore, from the viewpoint of personal information protection, the beacon has an example of the problem that it must have a high security function for information management.

[0009] Here, it is assumed that a temporary ID is used instead of a fixed ID so that the user's behavior is not specified! Specifically, for example, every time communication between a navigation device and a beacon is established, a one-time ID is generated by the beacon and assigned to the navigation device. Information is transmitted and received based on this one-time ID. However, if the one-time ID is used, the established communication is canceled, and when the communication is established again, the navigation device is given a different one-time ID from the previous communication. Therefore, one example is the problem that the information received by Beacon during the previous communication cannot be fed back to the navigation device.

Means for solving the problem

[0010] The communication management device according to claim 1 is a communication determination unit that determines whether or not communication with the communication terminal device is established, and communication with the communication terminal device is established by the communication determination unit. If it is determined that the communication terminal device An identification means, a storage processing means for storing the identification information received by the reception means in the identification information storage section, and transmission / reception of information with the communication terminal device based on the identification information stored in the identification information storage section And a communication means.

[0011] Further, the communication terminal device according to the invention of claim 5 is a communication terminal device located within a communication area of the communication management device, the detection means for detecting the start and stop of the own device, and the detection means A generating unit that newly generates identification information of the own device when the activation of the own device is detected, a storage processing unit that stores the identification information generated by the generating unit in an identification information storage unit, and the generation Notification means for notifying the communication management apparatus of the identification information generated by the means, communication means for transmitting / receiving information to / from the communication management apparatus based on the identification information stored in the identification information storage section, and the detection means And erasing means for erasing the identification information from the identification information storage unit when detecting the stop of the own apparatus.

[0012] The communication method according to the invention of claim 10 is a communication method of a communication management device that transmits and receives information to and from a communication terminal device located in a communication area, and establishes communication with the communication terminal device. A communication determination step for determining whether or not the communication terminal device has received communication information when the communication determination step determines that communication with the communication terminal device has been established; and A storage processing step for storing the identification information received in the reception step in the identification information storage unit, and transmission / reception of information with the communication terminal device based on the identification information stored in the identification information storage unit. And a communication process to be performed.

[0013] Further, the communication method according to the invention of claim 11 is a communication method of a communication terminal device located in a communication area of a communication management device, the detection step of detecting start and stop of the own device, A generation step of newly generating identification information of the own device when the activation of the own device is detected in the detection step; a storage processing step of storing the identification information generated by the generation step in the identification information storage unit; and A notification step of notifying the communication management device of the identification information generated by the generation step, a communication step of transmitting and receiving information to and from the communication management device based on the identification information stored in the identification information storage unit, and the detection step If the device is detected to be stopped, the identification information is stored in the identification information class. And an erasing process for erasing from the storage section.

[0014] A communication program according to claim 12 causes a computer to execute the communication method according to claim 10 or 11.

[0015] Furthermore, a computer-readable recording medium according to the invention of claim 13 records the communication program according to claim 12.

Brief Description of Drawings

FIG. 1 is a block diagram showing a system configuration according to an embodiment of the present invention.

[FIG. 2-1] FIG. 2-1 is a flowchart showing the contents of the processing of the communication management apparatus that is relevant to the embodiment of the present invention.

[FIG. 2-2] FIG. 2-2 is a flowchart showing the contents of the processing of the communication terminal device which is useful for the embodiment of the present invention.

FIG. 3 is a block diagram showing a hardware configuration of the server.

FIG. 4 is a block diagram showing a hardware configuration of the navigation device.

FIG. 5 is a sequence diagram showing the contents of bidirectional communication processing using Method 1.

[FIG. 6] FIG. 6 is a sequence diagram showing an example of a deformation process of Method 1.

FIG. 7 is a sequence diagram showing the contents of bidirectional communication processing using Method 2.

FIG. 8 is a sequence diagram showing an example of a deformation process of Method 2.

[FIG. 9] FIG. 9 is a sequence diagram showing the contents of bidirectional communication processing using Method 3.

FIG. 10 is a sequence diagram showing an example of the deformation process of Method 3.

[FIG. 11] FIG. 11 is a flowchart showing the contents of a process of receiving information addressed to an erased ID.

Explanation of symbols

[0017] 110 Communication Management Device

111 Communication judgment part

112 Reception Department

113 Storage processing unit

114 Identification information storage

115 Communications Department 116 Acquisition Department

117 Request section

120 Communication terminal equipment

121 Detector

122 generator

123 Storage processing section

124 Identification information storage

125 Notification section

126 Communications Department

127 Eraser

128 Communication judgment part

129 reception

BEST MODE FOR CARRYING OUT THE INVENTION

[0018] Exemplary embodiments of a communication management device, a communication terminal device, a communication method, a communication program, and a computer-readable recording medium according to the present invention will be described below in detail with reference to the accompanying drawings. .

[0019] (System configuration)

First, the system configuration of the embodiment of the present invention will be described. FIG. 1 is a block diagram showing a system configuration according to the embodiment of the present invention. As shown in FIG. 1, the present embodiment is realized by a system configuration including a communication management device 110 and a communication terminal device 120.

In the present embodiment, communication management device 110 is an information communication device placed at a predetermined location. The communication management device 110 receives information transmitted from the communication terminal device 120 in the communicable area. In addition, the communication management apparatus 110 transmits predetermined information to the plurality of communication terminal apparatuses 120, and may transmit information only to the specific communication terminal apparatus 120 in response to the information received from the communication terminal apparatus 120. it can.

[0021] Communication terminal device 120 is an information communication device mounted on a mobile object. If the communication terminal device 120 is within the communicable area of the communication management device 110, the communication terminal device 120 can communicate with the communication management device 110. Can be established. At this time, there are a plurality of communication terminal devices 120 relative to the communication management device 110. Therefore, in a state where communication is simply established, communication management device 110 cannot determine from which communication terminal device 120 it has received information from communication terminal device 120. Further, even when information is transmitted from the communication management device 110, it cannot be transmitted to the specific communication terminal device 120.

Therefore, in the case of the present embodiment, the communication management apparatus 110 uses identification information for specifying the communication terminal apparatus 120 for bidirectional communication with the communication terminal apparatus 120. This identification information is arbitrarily generated by the communication terminal device 120 when performing bidirectional communication rather than being fixedly set for each communication terminal device 120. Then, the identification information generated by the communication terminal device 120 is notified to the communication management device 110.

[0023] In addition, communication terminal apparatus 120 temporarily uses the generated identification information only for a predetermined period. The predetermined period is an arbitrarily set period such as a period from start to stop of the apparatus. As described above, when the period from the start to the stop of the device is a predetermined period, the identification information generated with the stop of the communication terminal device 120 as a trigger is deleted. By performing such processing, the identification information is valid only for a limited period. When the communication terminal device 120 is activated again, new identification information is generated, and the identification information is notified to the communication management device 110 in order to perform bidirectional communication using this identification information.

[0024] By providing the configuration as described above, the communication management apparatus 110 temporarily determines what information the communication terminal apparatus 120 has transmitted, that is, what action the communication terminal apparatus 120 has performed. Can be identified. For example, it is assumed that the identification information “AAA” is received from the communication terminal device 120 where the communication management device 110 is present, and transmission / reception processing is performed with the communication terminal device 120. When this communication terminal apparatus 120 stops the apparatus, “AAA” is deleted. When the communication terminal device 120 is restarted and establishes communication with the communication management device 110, the communication terminal device 120 generates a new identification information “” and notifies the communication management device 110 of the new identification information. Therefore, when the communication management apparatus 110 receives new identification information “BBB” in the communication terminal apparatus 120, the communication management apparatus 110 performs transmission / reception processing using this “BBB”. In addition, until the communication terminal device 120 stops, transmission / reception processing is performed any number of times using “AAA” or “BBB” regardless of whether the communication is in the same communication area or another communication area. To do Can do.

When the processing as described above is performed, the communication management apparatus 110 performs communication terminal apparatus 120 that has performed transmission / reception processing as “AAA” and communication terminal apparatus 120 that has performed transmission / reception processing as “BBB”. There is no power that is the same device. In this way, the communication terminal device 120 can maintain the anonymity of the communication terminal device 120 while performing bidirectional communication with the communication management device 110.

[0026] (Functional configuration of communication management device)

Next, a communication management apparatus 110 that is useful for the embodiment of the present invention will be described with reference to FIG. The communication management device 110 according to this embodiment includes a communication determination unit 111, a reception unit 112, a storage processing unit 113, an identification information storage unit 114, a communication unit 115, an acquisition unit 116, and a request unit 117. It is composed including

The communication determination unit 111 determines whether communication with the communication terminal device 120 within the communicable area of the communication management device 110 has been established. Specifically, the connection state between the communication management device 110 and the communication terminal device 120 is detected, and it is determined whether or not the power is a stable connection state in which communication is possible. That is, if the connection is stable, it is determined that communication has been established.

[0028] When the communication determination unit 111 determines that communication with the communication terminal apparatus has been established, the reception unit 112 receives identification information of the communication terminal apparatus 120 with which communication has been established. The identification information is information for specifying a communication partner. The accepting unit 112 can accept the identification information when the identification information is transmitted from the communication terminal device 120 that has established communication.

The storage processing unit 113 stores the identification information received by the receiving unit 112 in the identification information storage unit 114. The identification information storage unit 114 is a recording means provided in the communication management device 110. In this recording means, an identification information storage unit 124 is set as a dedicated recording area for storing identification information. The recording hardware and recording method is Cte.

The communication unit 115 performs bidirectional communication with the communication terminal device 120 based on the identification information stored in the storage processing unit. Specifically, for example, information including identification information is transmitted / received to / from communication terminal apparatus 120. [0031] Further, the communication management apparatus 110 may include the following acquisition unit 116 and request unit 117 in addition to the basic configuration described above. By using the acquisition unit 116 and the request unit 117, the reception unit 112 can receive identification information in various procedures.

When using the acquisition unit 116, the acquisition unit 116 directly connects to the communication terminal device 120 and acquires identification information. Specifically, the acquisition unit 116 connects to the identification information storage unit 124 of the communication terminal device 120 and acquires the identification information. The process of the acquisition unit 116 is triggered by a determination that communication with the communication terminal device 120 by the communication determination unit 111 has been established. The identification information storage unit 124 is a recording means for storing identification information provided in the communication terminal device 120 (details will be described later). As described above, when the acquisition unit 116 acquires the identification information, the reception unit 112 receives the identification information acquired by the acquisition unit 116.

When using the request unit 117, the request unit 117 transmits a request signal to the communication terminal apparatus 120 so as to transmit identification information to the communication management apparatus 110. The processing of the request unit 117 is performed using a determination that the communication determination unit 111 has established communication with the communication terminal device 120 as a trigger. When request unit 117 transmits a request signal in this way, reception unit 112 receives the identification information transmitted from communication terminal apparatus 120 in response to the request signal.

In addition, when receiving the identification information from the communication terminal device 120, the receiving unit 112 may receive transmission information to the communication management device 110. The transmission information received here is received in association with the identification information received at the same time.

[0035] (Functional configuration of communication terminal device)

Next, the functional configuration of communication terminal apparatus 120 will be described using FIG. As shown in FIG. 1, the communication terminal device 120 includes a detection unit 121, a generation unit 122, a storage processing unit 123, an identification information storage unit 124, a notification unit 125, a communication unit 126, an erasure unit 127, The communication determination unit 128 and the reception unit 129 are configured.

[0036] The detection unit 121 detects the start and stop of its own device (communication terminal device 120). Note that what is detected by the detection unit 121 is not limited to the start and stop of the device itself, but may be the start and stop of an arbitrarily set device. For example, the behavior of a moving body equipped with communication terminal device 120 (engine start Z stop, parking brake on Z off, battery It is also possible to detect a single device start-up, z-stop, etc.).

[0037] Generation unit 122 newly generates identification information of its own device (communication terminal device 120) when detection unit 121 detects the activation of its own device. The content of the identification information generated by the generation unit 122 may be arbitrary information as long as it is unique information that can be distinguished from other identification information.

The storage processing unit 123 stores the identification information generated by the generation unit 122 in the identification information storage unit 124. The identification information storage unit 124 is a recording device provided in the communication terminal device 120. In this recording means, an identification information storage unit 124 is set as a dedicated recording area for storing identification information. The recording means hardware and recording method are arbitrary.

The notification unit 125 notifies the communication management device 110 of the identification information generated by the generation unit 122. Specifically, the notification is a process of transmitting identification information to the communication management apparatus 110.

The communication unit 126 performs two-way communication with the communication management device 110 based on the identification information stored in the identification information storage unit 124. Specifically, information including identification information is transmitted / received to / from the communication unit 115 of the communication management apparatus 110.

The erasure unit 127 erases the identification information stored in the identification information storage unit 124 when the detection unit 121 detects the stop of the own device. That is, when the detection unit 121 detects that the apparatus is stopped, transmission of information using the identification information generated by the generation unit 122 is disabled.

[0042] Further, as described above, when the detection unit 121 detects activation of the own apparatus after the deletion unit 127 deletes the identification information stored in the identification information storage unit 124, the generation unit 122 The identification information of the own device (communication terminal device 120) is newly generated, and the storage processing unit 123 generates the newly generated identification information (identification information different from the identification information erased by the erasure unit 127), The identification information is stored in the identification information storage unit 124 as identification information of the own device.

In addition, the communication terminal device 120 may add a communication determination unit 128 and a reception unit 129 to the basic configuration as described above. By grasping such a configuration, the communication terminal device 120 can notify the communication management device 110 of identification information by various methods.

[0044] The communication determination unit 128 determines whether or not communication with the communication management apparatus 110 has been established. Through When the communication determination unit 128 is used, the notification unit 125 notifies the communication management device 110 of the identification information, triggered by the determination that the communication determination unit 128 has established communication with the communication management device 110.

The accepting unit 129 accepts a request signal for requesting to transmit identification information from the communication management device 110. When the reception unit 129 is used, the notification unit 125 notifies the identification information to the communication management apparatus 110 that has transmitted the request signal received by the reception unit 129.

[0046] Further, the communication management apparatus 110 cannot grasp the deletion of the identification information in the communication terminal apparatus 120. Therefore, information may be transmitted from the communication management device 110 using identification information that has already been deleted. Even in such a case, the transmitted information can be correctly received using the above-described configuration.

Specifically, when the identification information is deleted from the identification information storage unit 124 by the deletion unit 127, the storage processing unit 123 newly stores the deleted identification information as old identification information. Store in part 124. At this time, a dedicated recording area for storing old identification information may be set in the identification information storage unit 124. The communication unit 126 receives the information when the identification information included in the information transmitted from the communication management device 110 matches the identification information stored in the identification information storage unit 124 or the old identification information. do it. Thus, by receiving the information of the old identification information, the information transmitted from the communication management device 110 can be footed back without missing.

[0048] (Contents of processing of communication management device)

Next, the contents of processing of the communication management apparatus 110 will be described. FIG. 2-1 is a flowchart showing the contents of the processing of the communication management apparatus according to the embodiment of the present invention. In the flowchart of FIG. 2-1, first, the communication determination unit 111 determines whether or not the communication terminal device 120 has established communication (step S211). Here, it waits until communication is established (step S211: No loop). When communication is established (step S211: Yes), it is determined whether or not the identification information of the communication terminal device 120 connected by the reception unit 112 is received. Judgment is made (step S212).

[0049] In step S212, the process waits until the identification information of communication terminal apparatus 120 is accepted (step S212: No loop). When the identification information is accepted (step S212: Yes), the information is stored. The identification information received by the processing unit 113 is stored in the identification information storage unit 114 (step S213).

[0050] Then, the communication unit 115 transmits / receives information to / from the communication terminal device 120 based on the identification information (step S214), and the series of processing ends. This identification information is the identification information received from communication terminal apparatus 120 in step S212. As shown in FIG. 1, there are a plurality of communication terminal apparatuses 120, but the above-described processing is performed individually for each communication terminal apparatus 120 capable of communicating with the communication management apparatus 110.

[0051] (Contents of processing of communication terminal device)

Next, the processing contents of communication terminal apparatus 120 will be described. FIG. 2-2 is a flowchart showing the contents of processing of the communication terminal apparatus according to the embodiment of the present invention. In the flowchart of FIG. 2-2, first, it is determined whether or not the detection unit 121 has detected the activation of the device (communication terminal device 120) (step S221).

[0052] When activation of the apparatus is detected in step S221 (step S221: Yes), next, identification information is generated in the generation unit 122 (step S222). The generated identification information is stored in the identification information storage unit 124 by the storage processing unit 123 (step S223). afterwards . The communication determination unit 128 determines whether communication with the communication management device 110 has been established (step S224).

[0053] In step S224, the communication determination unit 128 waits until it is determined that communication with the communication management device 110 has been established (step S224: No loop). When communication is established (step S224: Yes). Then, the notification unit 125 notifies the communication management device 110 of the identification information (step S225), and the communication unit 126 transmits / receives information to / from the communication management device 110 based on the identification information (step S226).

[0054] After the transmission / reception of information is performed in step S226, the detection unit 121 determines whether or not it is the force that detected the stop of the device (communication terminal device 120) (step S227). Here, when the stop of the apparatus is detected (step S227: Yes), the erasure unit 127 erases the identification information stored in the identification information storage unit 124 (step S228), and the series of processing ends.

[0055] If the detection unit 121 does not detect the activation of the device (communication terminal device 120) in step S221 (step S221: No), the process proceeds to step S227 to stop the device. It is determined whether or not a stop has been detected. If the stop of the apparatus is not detected in step S227 (step S227: No), the process returns to step S221 to determine whether or not the apparatus is detected to be activated.

As described above, according to the present embodiment, communication management apparatus 110 receives identification information from communication terminal apparatus 120. This identification information is arbitrarily generated by communication terminal device 120 and is temporarily set. Therefore, the communication management device 110 can temporarily specify the mobile body on which the communication terminal device 120 is mounted, and can execute bidirectional communication for the specific communication terminal device 120. In addition, the communication management device 110 transmits appropriate information according to the situation of each communication terminal device 120, such as the position of the communication terminal device 120 and the traveling state of the mobile body equipped with the communication terminal device 120 (information feedback). ) can do.

[0057] Further, since the specification of communication terminal apparatus 120 is temporary rather than fixed, it is possible to prevent the behavior of the user of communication terminal apparatus 120 from being specified. Therefore, both personal information protection and information feedback can be achieved.

Example

Next, an example that works on the present embodiment will be described. In this example, the communication management apparatus 110 described in the embodiment is realized as a server having a beacon function. Communication terminal device 120 is realized as a navigation device mounted on a moving body (for example, a vehicle).

[0059] The configuration of the server and the navigation device and the details of specific processing for performing bidirectional communication will be described below. In this embodiment, the navigation device generates an ID as temporary identification information. In addition, the server and the navigation device perform bidirectional communication using this ID to realize transmission / reception of predetermined information (for example, VICS information). In the embodiment, the activation / stop of the communication terminal device 120 is detected, and the identification information is generated and deleted. In the embodiment, the communication terminal device 120 is realized by a navigation device mounted on a vehicle. Therefore, the start / stop of the vehicle engine is detected, and the ID is generated and deleted according to this detection.

[0060] (Hardware configuration of the server) First, the hardware configuration of the server will be described. Fig. 3 is a block diagram showing the hardware configuration of the server. As shown in FIG. 3, the server 300 includes a CPU 301, a ROM 302, a RAM 303, an HD 304, and a communication unit 305. The Sano 300 has a beacon 306 outside. The beacon 306 is connected to the server 300 via the network 310.

The CPU 301 governs overall control of the server 300. The ROM 302 records programs such as a boot program and a communication program. The RAM 303 is used as a word queryer for the CPU 301. The HD 304 is a hard disk and is a non-volatile magnetic disk that stores data by magnetism. The HD304 also has a hard disk drive that controls the reading and writing of data in the hard disk and records the data on the hard disk.

The communication unit 305 is connected to the network 310 and functions as an interface between a beacon 306 and a server 300 described later. Specifically, the communication unit 305 includes, for example, an FM tuner, a VICS / beacon resino, a radio navigation device, and other communication devices. Specific examples of the network 310 include a LAN, a WAN, a public line network, and a mobile phone network.

[0063] Beacon 306 establishes communication with a vehicle (for example, vehicles 320, 330, 340) within a predetermined communicable area (for example, communication area A, communication area B, etc.), and will be described later with server 300. Functions as an interface with the navigation device 400. Specifically, the beacon 306 is provided as a beacon roadside device provided on each road, for example.

[0064] Note that if the hardware configuration of the server 300 described above is supported, the communication determination unit 111, the reception unit 112, the communication unit 115, the acquisition unit 116, and the request unit 117 of the communication management device 110 illustrated in FIG. For example, the CPU 301, the ROM 302, the RAM 303, the communication unit 305, and the beacon 3 06 realize each function. Further, the storage processing unit 113 realizes its function by the CPU 301 and the ROM 302, for example. Further, the identification information storage unit 114 realizes its function by, for example, HD304.

[0065] (Hardware configuration of navigation device)

Next, a hardware configuration of the navigation device will be described. Figure 4 shows the navigation It is a block diagram which shows the hardware constitutions of a chassis device. This navigation device 400 is used in a state where it is mounted on a vehicle.

In addition, as shown in FIG. 4, the navigation apparatus 400 includes a CPU 401, a ROM 402, a RAM (memory) 403, a magnetic disk drive 404, a magnetic disk 405, an optical disk drive 406, an optical disk 407, Audio interface (interface) 408, microphone 409, speaker power 410, input device 411, video IZF 412, camera 413, display 414, communication IZF 415, GPS unit 416, various sensors 417, It is comprised including. Each component 401 to 417 is connected to each other by a nose 420.

The CPU 401 governs overall control of the navigation device 400. The ROM 402 records programs such as a boot program, a navigation program, and a communication program. The RAM 403 is used as a work area for the CPU 401.

The magnetic disk drive 404 controls reading and writing of data to the magnetic disk 405 according to the control of the CPU 401. The magnetic disk 405 records data written under the control of the magnetic disk drive 404. As the magnetic disk 405, for example, HD (node disk) or FD (flexible disk) can be used.

The optical disk drive 406 controls data reading / writing to the optical disk 407 in accordance with the control of the CPU 401. The optical disc 407 is a detachable recording medium from which data is read according to the control of the optical disc drive 406. As the optical disc 407, a writable recording medium can be used. Further, the removable recording medium may be a power MO of the optical disc 407, a memory card, or the like.

In the case of the present embodiment, the ID storage location is set in any recording area in the recording means such as the magnetic disk 405 and the optical disk 407. In this ID storage location, an ID used when the navigation apparatus 400 performs two-way communication with the server 300 is stored. This ID is stored in the ID storage location every time the navigation apparatus 400 generates by a process described later. The old ID storage location is set in a recording area different from the ID storage location described above. In this old ID storage location, every time the ID stored in the ID storage location is deleted, the deleted ID is stored as a new old ID.

Further, as another example of information recorded on the magnetic disk 405 and the optical disk 407, a route Search · Map data used for route guidance. Map data includes background data that represents features (features) such as buildings, rivers, and the ground surface, and road shape data that represents the shape of the road. The original drawing. When the navigation device is guiding the route, the map data and the current vehicle location acquired by the CPU 401 are displayed in an overlapping manner.

The audio IZF 408 is connected to a microphone 409 for audio input and a speaker 410 for audio output. The sound received by the microphone 409 is AZD converted in the sound IZF 408. In addition, sound is output from the speaker 410. Note that the sound input from the microphone 409 can be recorded on the magnetic disk 405 or the optical disk 407 as sound data.

[0073] Examples of the input device 411 include a remote controller having a plurality of keys for inputting characters, numerical values, various instructions, a keyboard, a mouse, a touch panel, and the like. Further, the input device 411 can be connected to another information processing terminal such as a digital camera or a mobile phone terminal to input / output data.

The video IZF 412 is connected to a video input camera 413 and a video output display 414. Specifically, the video IZF 412 is output from, for example, a graphic controller that controls the entire display 414, a buffer memory such as VRAM (Video RAM) that temporarily records image information that can be displayed immediately, and a graphic controller. Based on the image data to be displayed, a control IC that controls display of the display 414 is configured.

[0075] The camera 413 captures images inside and outside the vehicle and outputs them as image data. An image captured by the camera 413 can be recorded on the magnetic disk 405 or the optical disk 407 as image data. The display 414 displays icons, cursors, menus, windows, or various data such as characters and images. As this display 414, for example, a CRT, a TFT liquid crystal display, a plasma display, or the like can be adopted.

Communication IZF 415 performs wireless communication with beacon 306 (see FIG. 3), is connected to network 310 via beacon 306, and functions as an interface between server 300 and navigation device 400.

[0077] The network 310 includes a LAN, a WAN, a public line network, a mobile phone network, and the like. concrete Communication IZF415 is composed of, for example, FM tuner, VICS / Beacon Resino, wireless navigation device, and other navigation devices. get. VICS is a registered trademark.

The GPS unit 416 receives radio waves from GPS satellites and outputs information related to the positions of the vehicles 320, 330, 340 (see FIG. 3) on which the navigation device 400 is mounted. The output information of the GPS unit 416 is used when the CPU 401 calculates the current position of the vehicle together with output values of various sensors 417 described later. Information indicating the current location is information that identifies one point on the map data, such as latitude, longitude, and altitude.

[0079] Various sensors 417 are a vehicle speed sensor, an angular velocity sensor, and the like, and output information for determining the position and behavior of the vehicle. The output values of the various sensors 417 are used by the CPU 401 to calculate the current position of the vehicle and to measure changes in speed and direction.

[0080] The beacon receiver 418 receives the beacon signal distributed from the beacon 306 (see Fig. 3), and takes it into the navigation device 400 as VICS information. This VICS information is provided by road traffic information communication system (VICS), such as traffic congestion, accidents and regulations. Then, it is displayed on the navigation device 400 in real time.

[0081] If the hardware configuration of the navigation device 400 described above is made compatible, the detection unit 121 of the communication terminal device 120 shown in Fig. 1 has functions thereof, for example, the CPU 401, the ROM 402, the RAM 403, and various sensors 417. Realize. Further, the generation unit 122 realizes its function by the CPU 401 and the ROM 402, for example. Further, the storage processing unit 123 and the erasing unit 127 realize their functions by, for example, the CPU 401, the ROM 402, the magnetic disk drive 404, and the optical disk drive 406, respectively. The identification information storage unit 124 realizes its function by, for example, the magnetic disk 405 or the optical disk 407. Further, the notification unit 125, the communication unit 126, the communication determination unit 128, and the reception unit 129 realize their functions by, for example, the CPU 401, the ROM 402, the RAM 403, and the communication IZF 415.

[0082] (Contents of bidirectional communication processing)

Next, between the server 300 and the navigation device 400 configured as described above, Three methods will be described as specific processing contents for bidirectional communication.

[0083] <Method 1: Send ID from vehicle>

First, a method for notifying each of the vehicles 320, 330, and 340 by transmitting the ID to the server 300 will also be described. FIG. 5 is a sequence diagram showing the contents of bidirectional communication processing using Method 1. Here, the server 300 can execute processing with each of the vehicles 320, 330, and 340. Of these, communication processing with the vehicle 320 will be described (hereinafter, FIG. 6 to FIG. 6). The same is true for the sequence diagram in Figure 10.)

In the sequence diagram of FIG. 5, first, in vehicle 320, the engine is activated (S501) and starts running. In vehicle 320, a new ID is generated when the engine is started (S502). Thereafter, when the vehicle 320 passes the first beacon (S503), the vehicle is detected via the beacon 306. Further, the server 300 also detects beacons by the vehicle 320. The Sano 300 transmits authentication information of the beacon 306 in response to beacon detection by the vehicle 320, and communication with the vehicle 320 is established (S504).

[0085] After communication with server 300 is established, vehicle 320 transmits the new ID generated in S502 to server 300. The server 300 receives the ID transmitted from the vehicle 320 and compares it with the ID stored in the ID storage location (S505). In S505, if there is no ID corresponding to the received ID in the ID storage location, the received ID is stored as a new ID (S506). Further, the server 300 transmits a new ID acceptance confirmation to the vehicle 320 that is the ID transmission source as the new ID is stored.

[0086] After S506, the vehicle 320 transmits uplink information to the server 300 using the new ID (uplink processing). Specifically, when the ID is used, when the uplink information is transmitted from the vehicle 320, the server 300 associates the ID stored in S506 with the uplink information (S507). .

[0087] After the uplink processing, if the vehicle 320 force S beacon 306 force leaves (S508), the communication with the server 300 ends. When the vehicle 320 passes the beacon 306 again (the beacon 306 passed in S503 or another beacon 306 may be passed) (S509), the server 3 The vehicle is detected by 00. The server 300 also detects beacons by the vehicle 320. The Sano 300 transmits authentication information of the beacon 306 in response to beacon detection by the vehicle 320, and communication with the vehicle 320 is established (S510).

When server 300 and vehicle 320 become communicable, vehicle 320 transmits an ID to server 300. Server 300 collates the ID transmitted from vehicle 320 (S511). The ID collation in S511 is performed in the same manner as the ID collation in S505 described above. In S511, if there is an ID corresponding to the received ID in the ID storage location, the received ID is linked to the corresponding ID (S512). The server 300 transmits an ID link confirmation to the vehicle 320 in accordance with the link process of S512.

Through the above processing, the server 300 and the vehicle 320 are again in a communicable state. Therefore, uplink information is transmitted from the vehicle 320 to the server 300 (uplink processing). When receiving the uplink information, the server 300 associates the ID with the uplink information (S513). Then, when the vehicle 320 leaves the beacon 306 after the uplink processing (S514), the communication with the server 300 is terminated.

[0090] The processes of S509 to S514 described above are repeated until the engine of vehicle 320 is stopped. When the engine of vehicle 320 is stopped, the ID generated in S502 is deleted (S515), and the series of processes is terminated.

[0091] (Modification of Method 1)

Next, the deformation process of Method 1 will be described. FIG. 6 is a sequence diagram showing an example of the deformation process of Method 1. In the case of the deformation process of Method 1, the vehicle 320 is a method of transmitting uplink information (uplink process) simultaneously with the transmission of ID. Communication efficiency can be improved by transmitting ID and uplink information simultaneously. Further, it is possible to prevent the server 300 before uplink transmission from the vehicle 320 server 300 that transmitted the ID from leaving the beacon 306.

In the sequence diagram of FIG. 6, as in the case of FIG. 5, first, the engine is started (S601) and starts running. In vehicle 320, a new ID is generated when the engine is started (S602). Thereafter, when the vehicle 320 passes the first beacon (S603), the vehicle is detected via the beacon 306. Server 300 is also detected by beacon 320 by vehicle 320. The Server 300 transmits authentication information of beacon 306 in response to beacon detection by vehicle 320, and communication with vehicle 320 is established (S604).

After establishing communication with server 300, vehicle 320 transmits the new ID generated in S602 to server 300. Further, the vehicle 320 transmits uplink information together with the ID (uplink processing). The server 300 receives the ID transmitted from the vehicle 320 and the uplink information, and first collates with the ID stored in the ID storage location (S605). In S505, if there is no ID corresponding to the received ID in the ID storage location, the received ID is stored as a new ID (S606). Server 300 then associates the ID stored in S606 with the received uplink information (S607), and transmits a new ID acceptance confirmation to vehicle 320.

[0094] After the uplink processing, if the vehicle 320 power beacon 306 power leaves (S608), the communication with the server 300 ends. When the vehicle 320 passes again the beacon 306 (the beacon 306 passed in S603 or another beacon 306 may be used) (S609), the server 300 detects the vehicle. The server 300 also detects beacons by the vehicle 320. The Sano 300 transmits authentication information of the beacon 306 in response to beacon detection by the vehicle 320, and communication with the vehicle 320 is established (S610).

When server 300 and vehicle 320 are in a communicable state, vehicle 320 transmits an ID and uplink information to server 300. The server 300 first verifies the ID transmitted from the vehicle 320 (S611). The ID collation in S611 is performed in the same manner as the ID collation in S605 described above. In S511, if there is an ID corresponding to the received ID in the ID storage location, the received ID and the uplink information are linked to the corresponding ID (S612). The server 300 transmits an ID acceptance confirmation to the vehicle 320 in accordance with the processing of S612. When the vehicle 320 leaves the beacon 306 after the above uplink processing (S613), the vehicle 320 ends communication with the server 300.

[0096] The processing of S609 to S613 described above is repeated until the engine of vehicle 320 is stopped. When the engine of the vehicle 320 is stopped, the ID generated in S602 is deleted (S614), and the series of processing ends.

[0097] <Method 2: Server connects to the ID storage location of the navigation device> Next, a method in which the server 300 connects to the ID storage location of the navigation device 400 and acquires the ID will be described. FIG. 7 is a sequence diagram showing the contents of bidirectional communication processing using Method 2.

In the sequence diagram of FIG. 7, first, in vehicle 320, the engine is activated (S701) and starts running. In vehicle 320, a new ID is generated when the engine is started (S702). Thereafter, when the vehicle 320 passes the first beacon (S703), the vehicle is detected via the beacon 306. In addition, the server 300 also detects beacons by the vehicle 320. Server 300 transmits authentication information of beacon 306 in response to beacon detection by vehicle 320, and communication with vehicle 320 is established (S704).

[0099] After communication is established, the server 300 accesses the memory of the vehicle 320 in order to obtain the ID of the vehicle 320 of the communication partner. This memory is a recording area set as an ID storage location in the recording means (magnetic disk 405, optical disk 407) of the navigation device 400 of the vehicle 320. In particular, in Method 2, the memory is set in a state that the server 300 can freely access.

[0100] Since the ID generated by S702 is stored in the ID storage location of the navigation device 400 mounted on the vehicle 320, the server 300 acquires the ID. Then, the acquired ID is checked against the ID stored in the ID storage location (S705). In S705, if there is no ID corresponding to the received ID in the ID storage location, the received ID is saved as a new ID (S706). Further, the server 300 transmits a new ID acceptance confirmation to the vehicle 320 that is the ID transmission source as the new ID is stored.

[0101] After S706, the vehicle 320 transmits the uplink information to the server 300 using the new ID (uplink processing). Specifically, when the ID is used, when the uplink information is transmitted from the vehicle 320, the server 300 associates the ID stored with S706 and the uplink information (S707). ).

[0102] After the uplink processing, when the vehicle 320 force S beacon 306 force leaves (S708), the communication with the server 300 ends. When the vehicle 320 passes again the beacon 306 (the beacon 306 passed in S703 or another beacon 306 may be used) (S709), the vehicle is detected by the server 300. The server 300 also detects beacons by the vehicle 320. S The UE 300 transmits authentication information of the beacon 306 in response to beacon detection by the vehicle 320, and communication with the vehicle 320 is established (S710).

[0103] After the communication is established, the server 300 accesses the memory of the vehicle 320 again in order to obtain the ID of the vehicle 320 of the communication partner. Then, the ID generated by S702 is stored in the ID storage location of the navigation device 400 mounted on the vehicle 320! Therefore, the server 300 acquires the ID. Then, the acquired ID is compared with the ID stored in the ID storage location (S711).

[0104] The ID collation in S711 described above is performed in the same manner as the ID collation in S705 described above. In S711, if there is an ID corresponding to the received ID in the ID storage location, the received ID is linked to the corresponding ID (S712). The server 300 transmits an ID acceptance confirmation to the vehicle 320 in accordance with the associating process in S712.

[0105] Through the above processing, the server 300 and the vehicle 320 again become communicable. Therefore, uplink information is transmitted from the vehicle 320 to the server 300 (uplink processing). When receiving the uplink information, the server 300 associates the ID with the uplink information (S713). Then, when the vehicle 320 leaves the beacon 306 after the uplink processing (S714), the communication with the server 300 is terminated.

[0106] The processes in S709 to S714 described above are repeated until the engine of the vehicle 320 is stopped. When the engine of the vehicle 320 is stopped, the ID generated in S702 is deleted (S715), and the series of processing ends.

[0107] (Transformation of Method 2)

Next, the deformation process of Method 2 will be described. FIG. 8 is a sequence diagram showing an example of the deformation process of Method 2. Similarly to the deformation process of Method 1, the deformation process of Method 2 also transmits uplink information simultaneously with the transmission of ID.

In the sequence diagram of FIG. 8, as in the case of FIG. 7, the engine is first started (S801) and starts running. In vehicle 320, a new ID is generated when the engine is started (S802). Thereafter, when the vehicle 320 passes the first beacon (S803), the vehicle is detected via the beacon 306. The server 300 also detects beacons by the vehicle 320. Server 300 receives authentication information of beacon 306 in response to beacon detection by vehicle 320. Then, communication with the vehicle 320 is established (S804).

[0109] After communication is established, the server 300 accesses the memory of the vehicle 320 in order to obtain the ID of the vehicle 320 of the communication partner. Since the ID generated by S802 is stored in the ID storage location of the navigation device 400 mounted on the vehicle 320, the server 300 acquires the ID. Further, the server 300 receives the uplink information transmitted (uplink processing) from the vehicle 320 along with the acquisition of the ID.

[0110] Then, the acquired ID is compared with the ID stored in the ID storage location! (S805). In S805, if there is no ID corresponding to the received ID in the ID storage location, the received ID is stored as a new ID (S806). Further, the server 300 associates the ID stored in S806 with the received uplink information (S807), and transmits a new ID acceptance confirmation to the vehicle 320 that is the ID transmission source.

[0111] After the uplink processing, when the vehicle 320 power beacon 306 power leaves (S808), the communication with Sano 300 is terminated. When the vehicle 320 passes again the beacon 306 (the beacon 306 passed in S803 or another beacon 306 may be used) (S809), the vehicle is detected by the server 300. The server 300 also detects beacons by the vehicle 320. The Sano 300 transmits authentication information of the beacon 306 in response to beacon detection by the vehicle 320, and communication with the vehicle 320 is established (S810).

[0112] After the communication is established, the server 300 accesses the memory of the vehicle 320 again in order to obtain the ID of the vehicle 320 of the communication partner. Then, the ID generated by S702 is stored in the ID storage location of the navigation device 400 mounted on the vehicle 320! Therefore, the server 300 acquires the ID. Simultaneously with the acquisition of the ID, uplink information transmitted from the vehicle 320 (uplink processing) is received. Then, the acquired ID is compared with the ID stored in the ID storage location (S811).

[0113] The ID collation in S811 described above is performed in the same manner as the ID collation in S805 described above. In S811, if there is an ID corresponding to the received ID in the ID storage location, the received ID and uplink information are linked to the corresponding ID (S812). The server 300 transmits the ID acceptance confirmation to the vehicle 320 in accordance with the processing of S812. When the vehicle 320 leaves the beacon 306 after the uplink processing described above (S813), the vehicle 320 communicates with the server 300. The communication is temporarily terminated.

[0114] The processes in S809 to S813 described above are repeated until the engine of the vehicle 320 is stopped. When the engine of the vehicle 320 is stopped, the ID generated in S802 is deleted (S814), and the series of processing ends.

[0115] <Method 3: Server sends ID request>

Next, a method for requesting the server 300 to give an ID to the navigation device 400 of the vehicle 320 will be described. FIG. 9 is a sequence diagram showing the contents of bidirectional communication processing using Method 3.

In the sequence diagram of FIG. 9, first, an ID request is transmitted from the server 300 to the vehicle 320. This ID request is always transmitted without specifying the other party, and is also transmitted to the vehicle 330 and the vehicle 340 that do not execute the communication processing here. On the other hand, in vehicle 320, the engine is activated (S901) and starts running. In vehicle 320, a new ID is generated when the engine is started (S902). Thereafter, when the vehicle 320 passes through the first beacon (S903), the vehicle is detected via the h-, kon-306. In addition, Sano 300 is also detected by vehicle 320. Server 300 transmits authentication information of beacon 30 6 in response to beacon detection by vehicle 320, and communication with vehicle 320 is established (S904).

[0117] After communication is established, the vehicle 320 receives the ID request (S905), and transmits the ID generated in S902 to the Sano 300. The server 300 receives the ID transmitted from the vehicle 320 and compares it with the ID stored in the ID storage location (S906). In S906, if there is no ID corresponding to the received ID in the ID storage location, the received ID is stored as a new ID (S907). In addition, server 300 transmits a new ID acceptance confirmation to vehicle 320 that is the transmission source of the ID as the new ID is stored.

[0118] After S907, the vehicle 320 transmits the uplink information to the server 300 using the new ID (uplink processing). Specifically, when the ID is used, when the uplink information transmitted from the vehicle 320 is received by the server 300, the server 300 associates the ID stored in S907 with the uplink information (S908). .

[0119] After the uplink processing, when the vehicle 320 power beacon 306 power leaves (S909), the communication with Sano 300 is terminated. Even after the communication is completed, the server 300 continues I D Request has been sent. When the vehicle 320 passes the beacon 306 again (the beacon 306 passed in S903 or another beacon 306 may be passed) (S910), the vehicle is detected by the server 300. The server 300 also detects beacons by the vehicle 320. The Sano 300 transmits authentication information of the beacon 306 in response to beacon detection by the vehicle 320, and communication with the vehicle 320 is established (S911).

[0120] After communication is established, the vehicle 320 receives the ID request (S912), and transmits the ID generated in S902 to the server 300. The server 300 receives the ID transmitted from the vehicle 320 and compares it with the ID stored in the ID storage location (S913). The ID collation in S913 is performed in the same manner as the ID collation in S906 described above. In S913, if there is an ID corresponding to the received ID in the ID storage location, the received ID is linked to the corresponding ID (S914). The server 300 transmits an ID acceptance confirmation to the vehicle 320 in accordance with the linking process in S712.

[0121] Through the above processing, the server 300 and the vehicle 320 are again in a communicable state. Therefore, uplink information is transmitted from the vehicle 320 to the server 300 (uplink processing). When receiving the uplink information, the server 300 associates the ID with the uplink information (S915). When the vehicle 320 leaves the beacon 306 after the uplink processing (S916), the vehicle 320 ends communication with the server 300.

[0122] The processes of S910 to S915 described above are repeated until the engine of vehicle 320 is stopped. When the engine of the vehicle 320 is stopped, the ID generated in S902 is deleted (S917), and the series of processing ends.

[0123] (Transformation method of Method 3)

Next, the deformation process of Method 3 will be described. FIG. 10 is a sequence diagram showing an example of the deformation process of Method 3. In the deformation process of method 3, as in the case of the deformation process of methods 1 and 2, the vehicle 320 transmits the uplink information simultaneously with the transmission of the ID.

In the sequence diagram of FIG. 10, first, the server 300 transmits an ID request to the vehicle 320. On the other hand, in vehicle 320, the engine is activated (S1001) and starts running. In the vehicle 320, a new ID is generated when the engine is started (S1002). Thereafter, when the vehicle 320 passes the first beacon (S1003), the vehicle is detected via the beacon 306. The The server 300 also detects beacons by the vehicle 320. Server 300 transmits authentication information of beacon 306 in response to beacon detection by vehicle 320, and communication with vehicle 320 is established (S1004).

[0125] After the communication is established, the vehicle 320 receives the ID request (S1005), and transmits the ID generated in S1002 to the server 300. In addition, the server 300 transmits uplink information together with the ID (uplink processing). The server 300 receives the ID transmitted from the vehicle 320 and the uplink information, and first collates with the ID stored in the ID storage location (S 1006). In S1006, if there is no ID corresponding to the received ID in the ID storage location, the received ID is stored as a new ID (S1007). Server 300 then associates the ID stored in S1007 with the received uplink information (S1008), and transmits a new ID acceptance confirmation to vehicle 320.

[0126] After the uplink processing, when the vehicle 320 power beacon 306 power leaves (S1009), the communication with Sano 300 is terminated. Note that the ID request is continuously transmitted from the server 300 even after the communication is completed. When the vehicle 320 passes the beacon 306 again (the beacon 306 passed in S1003 or another beacon 306 may be passed) (S1010), the vehicle is detected by the server 300. The server 300 also detects beacons by the vehicle 320. Server 300 transmits authentication information of beacon 306 in response to beacon detection by vehicle 320, and communication with vehicle 320 is established (S1011).

[0127] After communication is established, vehicle 320 receives the ID request (S1012), and transmits the ID generated in S902 and the uplink information to Sano 300. The server 300 receives the ID transmitted from the vehicle 320 and the uplink information, and first collates with the ID stored in the ID storage location (S1013). The ID collation in S1013 is performed in the same manner as the ID collation in S1006 described above. In S1013, if there is an ID corresponding to the received ID in the ID storage location, the received ID and uplink information are linked to the corresponding ID (S1014). Server 300 transmits an ID acceptance confirmation to vehicle 320 in accordance with the processing of S1014. When the vehicle 320 leaves the beacon 306 after the above uplink processing (S1015), the vehicle 320 ends communication with the server 300.

[0128] The processes of S1010 to S1015 described above are repeated until the engine of vehicle 320 is stopped. Returned. When the engine of vehicle 320 is stopped, the ID generated in S1002 is deleted (S1016), and the series of processes is terminated.

[0129] (Receiving process for deleted ID addressed information)

As described above, in this embodiment, the navigation device 400 installed in each vehicle temporarily generates an ID, notifies the server 300 of the ID, and then performs bidirectional communication based on the ID. Realize. However, it is assumed that the navigation apparatus 400 cannot receive the data transmitted from the server 300 after the ID is deleted when the vehicle engine is stopped. Therefore, the reception process of the navigation device 400 for receiving the information transmitted to the erased ID while protecting the personal information will be described.

[0130] FIG. 11 is a flowchart showing the contents of the reception processing of the information addressed to the deleted ID.

In the flowchart of FIG. 11, it is first determined whether or not the engine has been turned off (step S1101). Here, the system waits until the engine is turned off (step S1101: No loop). If the engine is turned off, step S1101: Yes), the old ID is transferred to the old ID storage location (step S1102).

[0131] Next, it is determined whether or not the engine is turned on (step S1103). Again, wait until the engine is turned on (step S 1103: No loop). If the engine is turned on (step S 1103: Yes), a new ID is acquired and stored in the ID storage location (step S 1104). ).

[0132] Then, it is determined whether or not it is possible to receive information delivery for IDs other than the current ID (new ID stored in step S1104) from Sano 300 (step S1105). If information distribution for ID other than the current ID has not been received (step S1105: No), the series of processing ends. Therefore, the navigation device 400 performs two-way communication using the new ID.

[0133] On the other hand, in step S1105, if an information distribution for an ID other than the current ID is received (step S1105: Yes), the ID included in this information distribution and the old ID stored in the old ID storage location are stored. It is determined whether or not the ID matches (step S 1106). If the ID does not match (step S1106: No), the series of processing ends.

On the other hand, if the IDs match in step S 1106 (step S 1106: Yes), Obtained information is acquired (step S1107). Then, the processing shifts to the two-way communication with the server 300 and the old ID.

First, it is determined whether or not the current ID communication is disconnected (step S 1108). If the communication of the current ID is disconnected! /, (Step S1108: Yes), the process proceeds to step SI110 as it is. On the other hand, if the communication of the current ID is not disconnected (step S1108: No), the communication is disconnected (step S1109).

[0136] After the communication of the current ID is disconnected (step S1109), or if it is disconnected (step S1108: Yes), communication using the old ID is then established (step S1110). Then, an acquisition confirmation is sent back to the servo 300 (step S 1111). The reply process in step S1111 is performed using the old ID. When the reply in step S1111 is completed, the communication with the old ID is finally disconnected (step S1112), and the series of processes is terminated. Note that step S1107 for obtaining information may be performed after step SI 110 for establishing a connection with the old ID! /.

As described above, in the present embodiment, the traveling vehicle can be temporarily specified by the ID. This ID is a temporarily generated ID generated by the navigation device 400, so that the vehicles 320, 330, 340 equipped with the navigation device 400 can prevent individuals from being identified. .

[0138] Further, by storing the ID deleted when the engine was stopped as the old ID in a predetermined old ID storage location, the data collected by the server 300 using VICS can be stored in a specific vehicle ( For example, it can be fed back to the vehicle 320). Specifically, information related to traffic jams can be distributed appropriately according to the driving situation of each vehicle.

As described above, according to the communication management device, communication terminal device, communication method, communication program, and computer-readable recording medium according to the present invention, both personal information protection and information feedback can be achieved. Can do.

[0140] The communication method described in the present embodiment can be realized by executing a prepared program on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed when the recording medium force is also read by the computer. Also this program A ram may be a transmission medium that can be distributed over a network such as the Internet.

Claims

The scope of the claims

[1] communication determining means for determining whether communication with the communication terminal device has been established;

Accepting means for accepting identification information of the communication terminal device when it is determined by the communication judging means that communication with the communication terminal device has been established;

Storage processing means for storing the identification information received by the receiving means in the identification information storage unit;

A communication means for transmitting / receiving information to / from the communication terminal device based on the identification information stored in the identification information storage unit;

A communication management device comprising:

[2] When the communication determination unit determines that communication with the communication terminal device has been established, the communication determination unit includes an acquisition unit that connects to the communication terminal device and acquires identification information of the communication terminal device,

The communication management device according to claim 1, wherein the receiving unit receives the identification information acquired by the acquiring unit.

[3] When the communication determination unit determines that communication with the communication terminal apparatus has been established, a request signal is transmitted to the communication terminal apparatus so that identification information is transmitted to the communication management apparatus. Providing a requesting means,

The communication management apparatus according to claim 1, wherein the receiving unit receives identification information transmitted in response to the request signal.

[4] The communication management device according to any one of claims 1 to 3, wherein the reception unit receives transmission information from the communication terminal device together with the identification information.

[5] A communication terminal device located in the communication area of the communication management device,

Detection means for detecting the start and stop of the own device;

Generating means for newly generating identification information of the own device when the detecting means detects activation of the own device;

A storage processing means for storing the identification information generated by the generating means in the identification information storage unit;

Informing means for informing the communication management device of the identification information generated by the generating means When,

Communication means for transmitting / receiving information to / from the communication management device based on the identification information stored in the identification information storage unit;

An erasure unit for erasing the identification information from the identification information storage unit when the detection unit detects a stop of the device;

A communication terminal device comprising:

[6] Communication determining means for determining whether or not communication with the communication management apparatus has been established, and when the communication determination means determines that communication with the communication management apparatus has been established, the notification means 6. The communication terminal device according to claim 5, wherein the identification information is notified to the communication management device.

[7] The apparatus includes a receiving unit that receives a request signal for requesting transmission of the identification information from the communication management device,

6. The communication terminal device according to claim 5, wherein the notification unit notifies the identification information to a communication management device that has transmitted the request signal.

[8] After erasing the identification information stored in the identification information storage unit by the erasure means, when the detection means detects the start of its own device,

The storage processing means stores, in the identification information storage unit, identification information different from the erased identification information given from the communication management apparatus with which communication has been established, as identification information of the own apparatus. The communication terminal device according to claim 5.

[9] The storage processing unit stores the identification information erased from the identification information storage unit by the erasing unit in the identification information storage unit as old identification information,

9. The communication device according to claim 5, wherein the communication means receives information transmitted from the communication management device based on the identification information or the old identification information. The communication terminal device described.

[10] A communication method of a communication management device for transmitting and receiving information to and from a communication terminal device located in a communication area,

A communication determination step of determining whether or not communication with the communication terminal device is established; and a case where it is determined that communication with the communication terminal device is established by the communication determination step. And a reception step of receiving identification information of the communication terminal device;

A storage processing step of storing the identification information received in the reception step in the identification information storage unit;

A communication step of transmitting and receiving information to and from the communication terminal device based on the identification information stored in the identification information storage unit;

A communication method comprising:

[11] A communication method for a communication terminal device located within a communication area of a communication management device, comprising: a detection step for detecting start and stop of the own device;

In the detection step, when the activation of the own device is detected, a generation step for newly generating the identification information of the own device;

A storage processing step of storing the identification information generated by the generation step in the identification information storage unit;

A notification step of notifying the communication management device of the identification information generated by the generation step;

A communication step of transmitting and receiving information to and from the communication management device based on the identification information stored in the identification information storage unit;

An erasing step of erasing the identification information from the identification information storage unit when a stop of the device is detected in the detection step;

A communication method comprising:

[12] A communication program for causing a computer to execute the communication method according to claim 10 or 11.

[13] A computer-readable recording medium on which the communication program according to claim 12 is recorded.