WO2008041324A1

WO2008041324A1 - Communication management device, communication terminal device, communication method, communication program and computer readable recording medium

Info

Publication number: WO2008041324A1
Application number: PCT/JP2006/319772
Authority: WO
Inventors: Hiroaki Shibasaki
Original assignee: Pioneer Corporation
Priority date: 2006-10-03
Filing date: 2006-10-03
Publication date: 2008-04-10

Abstract

A communication management device (110) provides communication terminal devices (120) with identification information and transmits and receives information. The identification information provided by the communication management device (110) is stored at an identification information storing unit (123) of the communication terminal device (120). The identification information stored at the identification information storing unit (123) is erased by an erasing unit (125) whenever a detecting unit (121) detects stop of the terminal device. Further, when the detecting unit (121) of the communication terminal device (120) detects start of the device, the communication management device (110) provides it with new identification information, and the communication terminal device can transmit and receive information again by means of the identification information. The information erased by the erasing unit (125) is stored at the identification information storing unit (123) as old identification information by a storage processing unit (122). Thus, even if the information includes the erased identification information erased by the erasing unit (125), it can be received in the case that the old identification information is consistent.

Description

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

[0002] Conventionally, a navigation device scrolls a map around the position of the vehicle according to the travel of the vehicle, searches for a guidance route to the destination, and displays it on the map for the purpose of the driver. Guide to the ground. Among these navigation devices, the navigation device compatible with the Road Traffic Information Communication System (VICS) receives road traffic information (VICS information) such as traffic jams, accidents, and regulations provided by VICS and maps it in real time. It has a function to display on the screen.

[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 Attaching means, generating means for newly generating the identification information of the communication terminal apparatus when the receiving means does not receive the identification information of the communication terminal apparatus, and the identification information generated by the generating means for the communication It is provided with the provision means given to a terminal device, and the communication means which transmits / receives the information containing the said identification information with the said communication terminal device, It is characterized by the above-mentioned.

[0011] A communication terminal device according to the invention of claim 6 includes a detection means for detecting activation and stop of the own device, and a communication management device in which communication is established when the detection means detects activation of the own device. Storage processing means for storing the identification information of the own apparatus given from the identification information storage unit, a communication means for transmitting and receiving information including the identification information to and from the communication management apparatus, and the detection means of the own apparatus. And an erasing unit for erasing the identification information stored in the identification information storage unit when a stop is detected.

[0012] Further, the communication method according to the invention of claim 13 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 communicates with the communication terminal device. A communication determination step for determining whether or not a communication terminal device has been established, and an acceptance for receiving identification information of the communication terminal device when it is determined in the communication determination step that communication with the communication terminal device has been established. A generation step of newly generating the identification information of the communication terminal device when the identification information of the communication terminal device is not received, and the identification information generated by the generation step. And a communication step of transmitting and receiving information including the identification information to and from the communication terminal device.

[0013] The communication method according to the invention of claim 14 is a communication method of a communication terminal device located within the communication area of the communication management device, and communication is established when activation of the own device is detected. The identification information storage step of storing the identification information given from the communication management device in a predetermined recording unit, the communication step of transmitting and receiving information including the identification information to and from the communication management device, and the own device being stopped And an erasing step of erasing the identification information stored in the identification information recording unit when detected.

[0014] Further, a communication program according to claim 15 causes a computer to execute the communication method according to claim 13 or 14. [0015] Further, a computer-readable recording medium according to the invention of claim 16 records the communication program according to claim 15.

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 generator

114 Granting Department

115 Communications Department

116 Request section

117 Acquisition Department

120 Communication terminal equipment 121 Detector

122 Storage processing unit

123 Identification information storage

124 Communications department

125 Eraser

126 reception

127 Reply part

128 Request section

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, this embodiment is

, Realized by a system configuration including the communication management device 110 and the 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. Communication terminal device 120 can establish communication with communication management device 110 as long as it is within the communicable area of communication management device 110. 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. Also when sending information from the communication management device 110, It is not possible to transmit to a certain communication terminal device 120.

Therefore, in the case of the present embodiment, in order to perform bidirectional communication with the communication management device 110, the communication management device 110 uses identification information for specifying the communication terminal device 120. The identification information is temporarily given from the communication management apparatus 110 to the communication terminal apparatus 120 when performing bidirectional communication rather than being fixedly set for each communication terminal apparatus 120. The term “temporary” means that, for example, the identification information given when the communication terminal device 120 is activated once is valid only for a limited period, such as being deleted when the communication terminal device 120 is stopped. When communication terminal apparatus 120 is activated again, communication management apparatus 110 gives new identification information.

[0023] 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 only be identified. For example, it is assumed that the communication management apparatus 110 performs transmission / reception processing with the communication terminal apparatus 120 to which identification information “AAA” is assigned. When the communication terminal device 120 stops the device, “AAA” is deleted. When the communication terminal device 120 is restarted and communication with the communication management device 110 is established, identification information is not given to the communication terminal device 120. Accordingly, the communication management apparatus 110 gives new identification information “BBB” to the communication terminal apparatus 120 and performs transmission / reception processing using this “BBB”. In addition, until communication terminal device 120 stops, transmission / reception processing is performed any number of times using “AAA” or “BBB”, whether in the same communication area or in another communication area. Can be done.

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.

[0025] (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 and a reception unit 11. 2, a generation unit 113, a grant unit 114, a communication unit 115, a request unit 116, and an acquisition unit 117.

The communication determination unit 111 determines whether or not 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.

[0027] 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 receiving unit 112 can receive the identification information when the identification information is given to the communication terminal device 120 that has established communication, but can accept the identification information when the identification information is not given. Can not.

[0028] Generation unit 113 newly generates identification information of communication terminal device 120 when reception unit 112 does not accept the identification information of communication terminal device 120. When the identification information is not received, the identification information is not assigned to the communication terminal device 120 or the assigned identification information is stored in a predetermined storage location (specifically, an identification information storage unit described later). 123) Indicates that the data is not stored. Note that the reception unit 112 has not received the identification information when it has not received the identification information for a predetermined time or when the identification information is given and the information indicating the fact is received. to decide.

[0029] In addition to the case where the receiving unit 112 does not accept the identification information, the generation unit 113 receives the identification information generation request information instead of the identification information from the communication terminal device 120. The identification information may be newly generated.

[0030] The granting unit 114 gives the identification information generated by the generating unit 113 to the communication terminal device 120. By giving the identification information by the assigning unit 114, the communication terminal device 120 is temporarily specified.

The communication unit 115 implements bidirectional communication with the communication terminal device 120 using the identification information provided by the assigning unit 114. Specifically, information including identification information is transmitted / received to / from communication terminal apparatus 120. [0032] Further, the communication management apparatus 110 adds the following request unit 116 and acquisition unit 117 to the basic configuration as described above, thereby allowing the reception unit 112 to receive identification information. Various methods can be used.

When using the request unit 116, a request signal is transmitted to the communication terminal apparatus 120 so that the identification information is transmitted to the communication management apparatus 110. Specifically, the request signal is transmitted from the request unit 116 to the communication terminal device 120, triggered by the determination that the communication determination unit 111 has established communication with the communication terminal device 120. The accepting unit 112 accepts the identification information transmitted from the communication terminal device 120 in response to the request signal.

[0034] When using the acquiring unit 117, the identification information is acquired by directly connecting to the communication terminal device 120. Specifically, triggered by the determination that communication with communication terminal device 120 has been established by communication determination unit 111, acquisition unit 117 connects to identification information storage unit 123 of communication terminal device 120 to identify information. To get. The identification information storage unit 123 is a recording unit that stores identification information provided in the communication terminal device 120 (details will be described when the configuration of the communication terminal device 120 is described). When the acquisition unit 117 acquires the identification information, the reception unit 112 receives the acquired identification information.

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.

[0036] (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 storage processing unit 122, an identification information storage unit 123, a communication unit 124, an erasing unit 125, a reception unit 126, and a reply unit 127. The request unit 128 is included.

[0037] 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 mobile object equipped with the communication terminal device 120 (engine start Z stop, parking brake on Z off, battery start Z stop, etc.) may be detected. [0038] When the detection unit 121 detects the start of the own device, the communication terminal device 120 obtains identification information for performing bidirectional communication with the communication management device 110 with which communication has been established. You can start communication for!

The storage processing unit 122 stores, in the identification information storage unit 123, the identification information given from the communication management device 110 with which communication has been established when the detection unit 121 detects the activation of the own device. The identification information storage unit 123 is a recording unit provided in the communication terminal device 120. In this recording means, an identification information storage unit 123 is set as a dedicated recording area for storing the identification information. The hardware and recording method of the recording means are arbitrary.

The communication unit 124 performs two-way communication with the communication management device 110 using the identification information stored in the identification information storage unit 123. Specifically, information including identification information is transmitted / received to / from the communication unit 115 of the communication management apparatus 110.

[0041] The erasure unit 125 erases the identification information stored in the identification information storage unit 123 when the detection unit 121 detects the stop of the own device. That is, when the detection unit 121 detects the stop of the device, the identification information given from the communication management device 110 cannot be used.

[0042] Further, as described above, when the detection unit 121 detects activation of the own device after the deletion unit 125 deletes the identification information stored in the identification information storage unit 123, the storage processing unit 12 2 uses the new identification information (identification information different from the identification information erased by the erasure unit 125) given from the communication management device 110 with which communication has been established as the identification information storage unit 123 of its own device. To store.

[0043] In addition, the communication terminal device 120 manages communication by various methods by providing the following reception unit 126, reply unit 127, and request unit 128 in the basic configuration as described above. Identification information is given from the device 110.

[0044] The receiving unit 126 receives a request signal from the communication management device 110 (a signal requesting to transmit identification information of the own device to the communication management device 110) triggered by detection of activation by the detection unit 121. Start. Then, when the receiving unit 126 receives the request signal, if the identification information is stored in the identification information storage unit 123, the reply unit 127 returns the identification information to the communication management device 110 that has transmitted the request signal. On the other hand, the identification information storage unit 123 stores the identification information. If is not stored, the reply unit 127 returns the information indicating that the identification information is stored in the communication management apparatus 110 that has transmitted the request signal.

[0045] As described in the description of the reception unit 112 described above, when the communication management apparatus 110 receives information indicating that identification information is not given from the communication terminal apparatus 120, the communication management apparatus 110 generates new identification information. The process proceeds to processing, and identification information is assigned to the communication terminal device 120.

The request unit 128 transmits identification information generation request information to the communication management apparatus 110 triggered by detection of activation by the detection unit 121. The communication management apparatus 110 generates new identification information in response to the generation request information, and gives this identification information to the communication management apparatus 110. Therefore, the storage processing unit 122 stores the identification information given from the communication management device 110 in the identification information storage unit 123.

[0047] 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 deletion unit 125 deletes the identification information from the identification information storage unit 123, the storage processing unit 122 newly stores the deleted identification information as old identification information in the identification information storage unit 123. To do. At this time, a dedicated recording area for storing old identification information may be set in the identification information storage unit 123. Then, the communication unit 124 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 123 or the old identification information. It only has to be received. 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.

[0049] (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 determining 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), the reception unit It is determined whether or not the identification information of the communication terminal device 120 connected by 112 has been received (step S 212).

[0050] As described in the item of the functional configuration of the communication terminal device 120, the communication terminal device 120 is configured to delete the identification information when the device stops. Therefore, identification information is not stored in the identification information storage unit 123 of the information terminal device 120 that has established communication with the communication management device 110 for the first time after the device is started. On the other hand, in the communication terminal device 120 that has already established communication with the communication management device 110 after the device is activated, the identification information is stored in the identification information storage unit 123.

[0051] Therefore, if the identification information is not accepted in step S212 (step S212: No), it indicates that the identification information is not stored in the identification information storage unit 123 of the communication terminal device 120. Therefore, the generation unit 113 newly generates identification information (step S213), and the generated identification information is given to the communication terminal device 120 by the grant unit 114 (step S214). On the other hand, when the identification information is accepted in step S212 (step S212: Yes), it indicates that the identification information is stored in the identification information storage unit 123 of the communication terminal device 120.

[0052] Then, the communication unit 115 performs transmission / reception processing of information including identification information with the communication terminal device 120 (step S215), and the series of processing ends. This identification information is the identification information received in step S212 (step S212: Yes) or the identification information generated in step S213. 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.

[0053] (Processing contents 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). Here, it waits until the activation of the device is detected (step S221: No loop). When the activation is detected (step S221: Yes), it is determined whether or not the communication with the communication management device 110 is established (step S221). S222). [0054] In step S222, the communication management apparatus 110 waits until communication is established (step S222: No loop). When communication is established (step S222: Yes), identification information is stored in the identification information storage unit 123. It is determined whether or not the force is applied (step S223). If the identification information is stored in the identification information storage unit 123 (step S223: Yes), the process proceeds to step S226, and the communication unit 124 uses the communication management device 110 and the information including the identification information. Is sent / received (step S226).

On the other hand, if the identification information is not stored in the identification information storage unit 123 in step S223 (step S223: No), then the identification information is given from the communication management device 110. It is determined whether or not it is correct (step S224). Here, it waits until the identification information is assigned (step S224: No loop). When the identification information is assigned (step S224: Yes), the storage processing unit 122 stores the assigned identification information. Stored in section 123 (step S225).

[0056] After that, using the identification information stored in step S225, communication unit 124 performs transmission / reception processing of information including identification information with communication management device 110 (step S226). This identification information is identification information stored in the identification information storage unit 123. As described above, after the transmission / reception process is performed in step S226, the detection unit 121 determines whether or not it is detected that the apparatus (communication terminal apparatus 120) has stopped (step S227). Here, when the stop of the apparatus is detected (step S227: Yes), the erasure unit 125 erases the identification information stored in the identification information storage unit 123 (step S228), and the series of processing ends.

[0057] Further, after the transmission / reception processing in step S226 is completed, if the detection unit 121 does not detect the stop of the device (communication terminal device 120) in step S227 (step S227: No), the identification is continued. Processing for performing transmission / reception using the identification information stored in the information storage unit 123 is performed. Specifically, the process returns to step S222, and communication terminal apparatus 120 enters a standby state until communication with communication management apparatus 110 is established again (step S22 2: No loop). In step S222, when communication with the communication management apparatus 110 is established (step S222: Yes), the identification information storage unit 123 already stores the identification information (step S223: Yes). Then, transmission / reception processing of information including identification information is performed with the communication management device 110 (step S226). The above processing This is repeated until the stop of the apparatus is detected in step S227.

[0058] As described above, according to the present embodiment, communication management apparatus 110 can temporarily identify a mobile object by giving identification information, and target specific communication terminal apparatus 120. Bidirectional communication can be executed. Therefore, appropriate information can be transmitted (information feedback) in accordance with the situation of each communication terminal device 120, such as the position of the communication terminal device 120 and the traveling state of a mobile body equipped with the communication terminal device 120.

[0059] Since the specification of the communication terminal device 120 is temporary rather than fixed, it is possible to prevent the behavior of the user of the communication terminal device 120 from being specified. Therefore, both personal information protection and information feedback can be achieved.

Example

[0060] Next, examples that are useful for 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).

[0061] Hereinafter, the configuration of the server and the navigation device and the details of the specific processing for performing bidirectional communication will be described. In this embodiment, the server assigns an ID as temporary identification information to the navigation device in the communicable area. In addition, the server and the navigation device perform bidirectional communication using this ID, and realize transmission / reception of predetermined information (for example, VOCS information). In the embodiment, the activation / stop of the communication terminal device 120 is detected and the identification information is acquired and deleted. In the embodiment, the communication terminal device 120 is realized by a navigation device mounted on the vehicle. Therefore, the start / stop of the vehicle engine is detected, and the ID is acquired and deleted according to this detection.

[0062] (Hardware configuration of 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. This beacon 306 is routed via network 310 Connected to server 300.

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.

[0065] Beacon 306 establishes communication with a vehicle (for example, vehicle 320, 330, 340) in 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.

[0066] It should be noted that if the hardware configuration of the server 300 described above is supported, the communication determination unit 111, the reception unit 112, the grant unit 114, the communication unit 115, the request unit 116, and the communication management device 110 illustrated in FIG. The acquisition unit 117 implements the functions of, for example, the CPU 301, the ROM 302, the RAM 303, the communication unit 305, and the beacon 306. Further, the generation unit 113 realizes its function by, for example, the CPU 301, the ROM 302, and the RAM 303.

[0067] (Hardware configuration of navigation device)

Next, a hardware configuration of the navigation device will be described. FIG. 4 is a block diagram showing a hardware configuration of the navigation apparatus. 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 device 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 Force 410, input device 411, video IZF 412, camera 413, display 414, communication IZF 415, GPS unit 416, and various sensors 417. 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 reading and writing of data to the optical disk 407 according to 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 this embodiment, an 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 it is given from the server 300 by the processing 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.

[0073] Another example of information recorded on the magnetic disk 405 and the optical disk 407 is map data used for route search / 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.

[0075] Examples of the input device 411 include a remote controller, a keyboard, a mouse, and a touch panel that are provided with a plurality of keys for inputting characters, numerical values, various instructions, 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.

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.

[0079] The network 310 includes a LAN, a WAN, a public line network, a mobile phone network, and the like. Specifically, the communication IZF 415 is composed of, for example, an FM tuner, a VICS / beacon resino, a radio navigation device, and other navigation devices. Get information. VICS is a registered trademark.

[0080] The GPS unit 416 receives radio waves from GPS satellites and is equipped with the navigation device 400. Information on the position of the loaded vehicles 320, 330, 340 (see Fig. 3) is output. 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.

[0081] 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.

[0082] Beacon receiver 418 receives a beacon signal distributed from beacon 306 (see Fig. 3) and takes it into 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.

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 its function provided by, for example, the CPU 401, the ROM 402, the RAM 403, and the various sensors 417. Realize. The storage processing unit 122 and the erasing unit 125 realize their functions by, for example, the CPU 401, the ROM 402, the magnetic disk drive 404, and the optical disk drive 406, respectively. Further, the identification information storage unit 123 realizes its function by, for example, the magnetic disk 405 or the optical disk 407. Further, the reception unit 126, the reply unit 127, and the request unit 128 realize their functions by, for example, the CPU 401, the ROM 402, the RAM 403, and the communication IZF 415.

[0084] (Contents of bidirectional communication processing)

Next, specific processing contents for performing bidirectional communication between the server 300 and the navigation apparatus 400 configured as described above will be described. As described in the embodiment, here, three methods will be described as an example.

[0085] <Method 1: Send ID request from server>

First, a method for transmitting an ID request from the Sano 300 force to the navigation device 400 of the vehicle 320, 330, 340 will be described. FIG. 5 is a sequence diagram showing the contents of bidirectional communication processing using Method 1. Here, the server 400 is capable of executing processing with each of the vehicles 320, 330, and 340. Will be described.

In the sequence diagram of FIG. 5, first, an ID request (S 501) is transmitted from server 300 to vehicle 320. The ID request is an instruction signal for returning the ID of its own device. This ID request is always sent from the server 300 without specifying the other party, and communication processing is not executed here!送信 Sent to vehicle 330 and vehicle 340!

On the other hand, in vehicle 320, the engine is activated (S502), and an ID can be acquired. When the vehicle 320 starts traveling and passes the first beacon (S503), the server 300 detects the establishment of communication (S504). When the vehicle 320 receives the ID request transmitted from the server 300 (S505), the vehicle 320 transmits a response to the ID request. In the case of FIG. 5, since the engine is started and the ID is not stored, the vehicle 320 is given an ID to the server 300! / Wow! /, Send null indicating the effect.

When server 300 receives null, server 300 generates a new ID for vehicle 320 (S506). An ID is assigned to vehicle 320. The vehicle 320 stores the new ID given from the server 300 in the ID storage location (S507). Here, the ID storage location is a recording area set in the magnetic disk 405 or the optical disk 407 of the navigation device 400 as described above. The magnetic disk 405 is provided with an old ID storage location described later in a recording area different from the ID storage location.

When the vehicle 320 is given an ID, the vehicle 320 transmits an ID reception confirmation to the server 300. The server 300 receives the ID reception confirmation and transmits the authentication information of the beacon 306 to the vehicle 320 corresponding to the ID reception confirmation and performs a so-called downlink process (S508).

When the vehicle 320 receives the authentication information, the vehicle 320 performs so-called uplink processing for transmitting information related to the own vehicle to the server 300 (S509). Information transmitted by this uplink processing is called uplink information. Server 300 associates the uplink information transmitted from vehicle 320 with the ID assigned to vehicle 320 (S510). Hereinafter, the server 300 and the vehicle 320 perform transmission / reception processing with the vehicle 320 using this ID (S511). Then, after the transmission / reception process of S511 is completed, the uplink process may be performed using this ID any number of times each time another beacon 306 of the server 300 is passed, but the engine of the vehicle 320 is stopped. If deleted, the ID power stored in the ID storage location in S507 is deleted from the ID storage location ( S512), a series of processing ends.

[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 performs the uplink process before the ID is given. That is, this means that the null transmission process and the uplink information transmission process in the sequence diagram of FIG. 5 described above are performed simultaneously.

In the sequence diagram of FIG. 6, as in the case of FIG. 5, first, an ID request (S601) is transmitted from the Sano 300 force to the vehicle 320. On the other hand, the vehicle 320 starts running (S602), starts running, and passes through the first beacon (S603). At this time, the vehicle 320 receives the ID request transmitted from the server 300, establishes communication with the server 300 (S604), and transmits beacon authentication information to the vehicle 320.

Then, when receiving the ID request transmitted from server 300 (S605), vehicle 320 transmits a response to the ID request. In the case of FIG. 6, since the engine is activated and the ID is not stored, the vehicle 320 transmits null indicating that no ID is assigned to the server 300 and transmits uplink information. , Perform uplink processing (S606)

When receiving the null and the uplink information, the server 300 generates a new ID to be given to the vehicle 340 and associates the generated new ID with the received uplink information (S607). Then, the server 300 gives an ID associated with the uplink information to the vehicle 320. The vehicle 320 stores the ID assigned from the server 300 as a new ID in the ID storage location (S608).

Hereinafter, the Sano 300 and the vehicle 320 perform transmission / reception processing with the vehicle 320 using this ID (S609). After the transmission / reception process of S609 is completed, the uplink process may be performed using this ID any number of times each time another beacon 306 of the server 300 is passed, but the engine of the vehicle 320 is stopped. Then, the ID stored in the ID storage location in S608 is also deleted from the ID storage location power (S610), and the series of processes is terminated.

[0096] <Method 2: Server connects to navigation device ID storage location>

Next, the server 300 connects to the ID storage location of the navigation device 400 and acquires the ID. The method to do is demonstrated. FIG. 7 is a sequence diagram showing the contents of bidirectional communication processing using Method 2.

In the sequence diagram of FIG. 7, first, the vehicle 320 starts the engine (S701), starts running, and passes the first beacon (S702). At this time, when receiving the beacon detection from the vehicle 320, the server 300 establishes communication (S703) and enters a communicable state. In addition, server 300 transmits beacon authentication information to vehicle 320.

[0098] After the communication is established, the server 300 performs a process for acquiring the ID of the communication partner vehicle 320 (S704). Specifically, in order to obtain the ID of the vehicle 320, the memory is directly accessed. 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 so that the Sano 300 is freely accessible.

[0099] Since no ID is stored in the ID storage location of the navigation device 400 mounted on the vehicle 320, the server 300 acquires null. When the server 300 generates a new ID in response to acquiring this null (S705), the server 300 assigns the generated ID to the vehicle 320. The vehicle 320 stores the assigned ID in the ID storage location (S706) and transmits an ID reception confirmation to the server 300.

[0100] After that, the vehicle 320 transmits uplink information to the server 300, and performs uplink processing (S707). Then, the server 300 that has received the uplink information associates the ID of the vehicle 320 with the uplink information (S708). Hereinafter, the Sano 300 and the vehicle 320 perform transmission / reception processing with the vehicle 320 using this ID (S709). Then, after the transmission / reception processing of S709 is completed, the uplink processing may be performed using this ID any number of times each time another beacon 306 of the server 300 is passed, but the engine of the vehicle 320 is stopped. Then, in step S706, the ID force stored in the ID storage location is erased from the ID storage location (S710), and the series of processing ends.

[0101] (Transformation method 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. The deformation process of Method 2 is the same as the deformation process of Method 1. 0 performs uplink processing before ID is assigned.

[0102] In the sequence diagram of Fig. 8, first, the vehicle 320 starts the engine (S801), starts running, and passes the first beacon (S802). At this time, when the server 300 receives beacon detection from the vehicle 320, the server 300 establishes communication (S803) and enters a communicable state. In addition, server 300 transmits beacon authentication information to vehicle 320.

[0103] After communication is established, the server 300 accesses the memory of the vehicle 320 in order to perform processing for acquiring the ID of the vehicle 320 of the communication partner (S804). Then, since the ID is not held in the memory of the vehicle 320, the server 300 acquires null. The server 300 obtains null and receives uplink information transmitted from the vehicle 320 to perform uplink processing (S805).

[0104] As described above, when server 300 obtains null and receives uplink information, server 300 generates a new ID to be given to vehicle 340. Further, the server 300 associates the generated new ID with the received uplink information (S806). Then, the server 300 gives the vehicle 320 the ID associated with the uplink information. When the vehicle 320 stores the ID assigned from the server 300 (S807), the vehicle 320 transmits an ID reception confirmation to the server 300.

[0105] Hereinafter, Sano 300 and vehicle 320 perform transmission / reception processing with vehicle 320 using this ID (S808). Then, after the transmission / reception process of S808 is completed, the uplink process may be performed using this ID any number of times each time another beacon 306 of the server 300 is passed, but the engine of the vehicle 320 is stopped. Then, in step S807, the ID stored in the ID storage location is also deleted from the ID storage location power (S809), and the series of processing ends.

[0106] <Method 3: Navigation device power, send D request>

Next, a method for requesting the server 300 to assign an ID from 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, the vehicle 320 starts the engine (S901), starts running, and passes the first beacon (S902). At this time, when receiving the beacon detection from the vehicle 320, the server 300 establishes communication (S903) and enters a communicable state. In addition, server 300 transmits beacon authentication information to vehicle 320. [0108] When communication is established, vehicle 320 (specifically, navigation device 400 mounted on vehicle 320) transmits a new ID request to server 300 in order to perform a new ID request process (S904). ). When the server 300 receives the new ID request, the server 300 generates a new ID (S905) and assigns it to the vehicle 320. The vehicle 320 stores the ID assigned from the server 300 as a new ID in the ID storage location (S906). When the ID is stored, the vehicle 320 transmits an ID reception confirmation to the server.

[0109] After that, the vehicle 320 transmits uplink information to the server 300 to perform uplink processing (S907). The Sano 300 associates the ID generated in S905 with the ID generated by the vehicle 320 and the uplink information received from the vehicle 320 (S908). Hereinafter, the Sano 300 and the vehicle 320 use this ID. Transmission / reception processing with the vehicle 320 is performed (S909). Then, after the transmission / reception process of S909 is completed, the uplink process may be performed using this ID any number of times each time another beacon 306 of the server 300 passes, but the engine of the vehicle 320 is stopped. Then, in step S906, the ID force stored in the ID storage location is erased from the ID storage location (S910), and the series of processing ends.

[0110] (Modification 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 with the deformation processes of methods 1 and 2, the vehicle 320 performs an uplink process before an ID is assigned.

In the sequence diagram of FIG. 10, first, the vehicle 320 starts the engine (S1001), starts running, and passes the first beacon (S1002). At this time, when receiving a beacon detection from the vehicle 320, the server 300 establishes communication (S1003) and enters a communicable state. Server 300 also transmits beacon authentication information to vehicle 320.

[0112] When communication is established, the vehicle 320 transmits a new ID request to the server 300 (S1004) and performs uplink processing by transmitting uplink information (S1005) in order to perform request processing of a new ID. ). Upon receiving this new ID request and uplink information, server 300 generates a new ID to be given to vehicle 340, and links the generated new ID and the received uplink information (S 1006). .

Then, server 300 gives ID associated with the uplink information to vehicle 320. The vehicle 320 stores the ID assigned from the server 300 as a new ID in the ID storage location (S1007). When the ID is stored, the vehicle 320 transmits an ID reception confirmation to the server.

[0114] Hereinafter, the Sano 300 and the vehicle 320 perform transmission / reception processing with the vehicle 320 using this ID (S1008). Then, after the transmission / reception processing of S 1008 is completed, the uplink processing may be performed using this ID any number of times each time it passes through another beacon 306 of the server 300. However, the engine of the vehicle 320 When stopped, the ID storage location stored in the ID storage location in S1007 is also deleted (S1009), and the series of processing ends.

[0115] (Receiving process for deleted ID addressed information)

As described above, in this embodiment, an ID is assigned to each vehicle, and bidirectional communication is realized based on this ID. However, after the ID is deleted when the vehicle engine stops, it is assumed that the navigation device 400 cannot receive the data transmitted from the server 300. Therefore, the reception process of the navigation device 400 for receiving information transmitted to the deleted ID while protecting personal information will be described.

FIG. 11 is a flowchart showing the contents of the reception process 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).

[0117] 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). ).

[0118] Then, it is determined whether or not the information distribution for ID other than the current ID (new ID stored in step S1104) is received from the server (step S1105). If information distribution for IDs other than the current ID has not been received (step SI 105: No), the series of processing ends. Therefore, two-way communication with the new ID is performed in the navigation device.

[0119] On the other hand, if information distribution for an ID other than the current ID is received in step S1105, If this is the case (step SI 105: Yes), it is determined whether the ID included in this information distribution matches the old ID stored in the old ID storage location (step S1106). 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), the distributed information is acquired (step S1107). Then, the processing shifts to the two-way communication with the server 300 and the old ID.

[0121] First, it is determined whether or not the current ID communication is disconnected (step S1108). 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).

[0122] After disconnection of the communication of the current ID (step S1109) or when disconnected (step S1108: Yes), communication with the old ID is then established (step S1110). Then, an acquisition confirmation is returned to the navigation device 400 (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. In the above flowchart, step S1107 for obtaining information may be performed after step S1110 for establishing a connection with the old ID! /.

[0123] As described above, in this embodiment, the traveling vehicle can be temporarily specified by the ID. Since this ID is an ID temporarily assigned by the server 300, the vehicles 320, 330 and 340 equipped with the navigation device 400 can prevent an individual from being identified.

[0124] In addition, by storing the ID deleted when the engine stopped as an 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.

[0125] Thus, according to the communication management device, communication terminal device, communication method, communication program, and computer-readable recording medium that are effective in the present invention, both personal information protection and information feedback can be achieved. Can do. Note that the communication method described in this 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. In addition, this program may be a transmission medium that can be distributed via 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;

Generating means for newly generating identification information of the communication terminal device when the receiving means does not receive the identification information of the communication terminal device;

A granting means for granting the identification information generated by the generating means to the communication terminal device;

A communication management device comprising: communication means for performing transmission / reception of information including the identification information with the communication terminal device.

[2] The communication terminal device comprises request means for transmitting a request signal to transmit identification information addressed to the communication management device,

The request means transmits a request signal to the communication terminal apparatus when the communication determination means determines that communication with the communication terminal apparatus has been established,

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

[3] When the communication determination unit determines that communication with the communication terminal apparatus has been established, the communication determination unit connects to the identification information storage unit of the communication terminal apparatus and acquires the identification information of the communication terminal apparatus An acquisition means,

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

[4] When the receiving means receives identification information generation request information instead of identification information from the communication terminal device,

The communication management device according to claim 1, wherein the generation unit newly generates identification information of the communication terminal device.

5. The communication management apparatus according to claim 1, wherein the reception unit receives transmission information from the communication terminal apparatus together with the identification information.

[6] detection means for detecting the start and stop of the own device; A storage processing unit for storing, in an identification information storage unit, identification information of the own device given from a communication management device with which communication has been established, when the detection unit detects activation of the own device; and the communication management device and the identification A communication means for transmitting and receiving information including information; and an erasing means for erasing the identification information stored in the identification information storage section when the detection means detects a stop of the own apparatus;

A communication terminal device comprising:

[7] The communication device according to claim 6, wherein when the detection unit detects activation of the own device, communication is performed to acquire identification information of the communication management device and the own device. Communication terminal device.

[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 6.

[9] When the detection unit detects activation of the own device, a reception unit that receives a request signal for requesting transmission of the identification information of the own device from the communication management device; and the identification information storage unit When the identification information is stored, a reply means for returning the identification information to the communication management apparatus that transmitted the request signal;

The communication terminal device according to claim 6, further comprising:

[10] When the detection unit detects activation of the own device, a receiving unit that receives a request signal for requesting transmission of the identification information of the own device from the communication management device; and the identification information storage unit A reply means for sending back the information indicating that the identification information is stored! / ヽ when the identification information is not stored to the communication management apparatus that has transmitted the request signal;

The communication terminal device according to claim 6, further comprising:

[11] When the detection unit detects the activation of the own device, it comprises a request unit for transmitting identification information generation request information to the communication management device,

The storage processing means is responsive to the generation request information transmitted by the request means. 7. The communication terminal apparatus according to claim 6, wherein the given identification information is stored in the identification information storage unit.

[12] 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,

In the communication means, the identification information included in the information transmitted from the communication management device is stored in the identification information storage unit! 12. The communication terminal apparatus according to claim 6, wherein the information is received when the identification information matches or the old identification information.

[13] 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 for determining whether or not communication with the communication terminal device has been established; and when it is determined that communication with the communication terminal device has been established through the communication determination step, the communication terminal A receiving step for receiving identification information of the device;

If the identification information of the communication terminal device is not received in the reception step, a generation step of newly generating the identification information of the communication terminal device;

An assigning step of assigning the identification information generated by the generating step to the communication terminal device;

And a communication step of transmitting and receiving information including the identification information to and from the communication terminal device.

[14] A communication method of a communication terminal device located within the communication area of the communication management device, and when the activation of the own device is detected, the identification information given from the communication management device with which communication has been established An identification information storing step for storing in a predetermined recording unit;

A communication step for transmitting and receiving information including the identification information to and from the communication management device; and an erasing step for erasing the identification information stored in the identification information recording unit when a stop of the own device is detected;

A communication method comprising:

[15] A communication program for causing a computer to execute the communication method according to claim 13 or 14. 16. A computer-readable recording medium on which the communication program according to claim 15 is recorded.