JPH08331266A - Communication system - Google Patents

Abstract

PURPOSE: To provide a communication system with which it is not necessary to manage an ID number for specifying any communication equipment and the register operation of a user is simplified. CONSTITUTION: This system is provided with a telephone set 1 for storing a telephone number peculiar for the user from a public network 7 and outputting this telephone number and radio communication equipment 8 for generating and storing the ID number from the telephone number from this telephone set 1. When the radio communication equipment 8 becomes the transmission side and transmits data to radio communication equipment 15, those data are transmitted after the ID number is added to them, and the radio communication equipment 15 on the reception side compares the ID number added to the received data with its own stored ID number. When those ID numbers are matched, data are received but when those ID numbers are not matched, those data are abandoned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system for transmitting / receiving data between communication devices.

[0002]

2. Description of the Related Art As a conventional communication system, Japanese Patent Laid-Open No. 6-1
No. 41099 discloses a home bus system.
In this system, data communication is performed between the control computer and the control target device, but since an ID number is not given to the transmitted / received data, if a similar system is installed in the adjacent area, , There is a possibility of receiving data from a communication device in an adjacent area. Therefore, whether the received data was transmitted from a communication device installed in an adjacent area or a communication device owned by the same user. It cannot be determined whether it was sent from.

[0003]

Therefore, in the case of the conventional communication system, it is not possible to determine that the received data is the data transmitted by the communication device used by the own communication system. When installed, there is a risk that the transmission data from the communication device in the adjacent area may be received and the own communication device may malfunction.

In order to prevent such a malfunction, there is a method of assigning an ID number to each transmission data and then specifying the utilization area by the ID number. In determining the ID number, the adjacent area is determined. Not used in I
It is necessary to manage the ID number for each usage area, such as having to assign a D number.

In the present invention, when the above-mentioned ID number is generated, there is no need to manage the ID number, and the communication is such that communication with a communication device can be performed with an ID number unique to each usage area. The purpose is to provide a system.

[0006]

In the communication system of the present invention, in the communication system for transmitting and receiving data between communication devices, the communication device stores an ID number generated from the same telephone number. At least the ID number storage means and the ID number comparison means for comparing the ID number related to the communication with the ID number stored in the ID number storage means. The communication device on the receiving side compares the ID number in the received data with the ID number stored in the ID number storage means.

The communication system preferably has a telephone having a function of fetching and storing a telephone number from a public network, and the communication device generates an ID number from the telephone number given by the telephone. be able to.

The communication system preferably has a storage medium having a telephone number storage means for storing a telephone number, and the communication device generates an ID number from a telephone number given from the storage medium. Can be

In the communication system, preferably, the telephone further has a function of transmitting an encryption key together with a telephone number, and the communication device as the transmitting side encrypts the telephone number with the encryption key to generate an ID number. The communication device on the receiving side can be characterized by decrypting the encrypted ID number with an encryption key.

In the communication system, preferably, the storage medium further has a function of transmitting an encryption key together with a telephone number, and the communication device on the transmitting side encrypts the telephone number with the encryption key to generate an ID number. The communication device on the receiving side can be characterized by decrypting the encrypted ID number with an encryption key.

The communication system can be preferably characterized in that the communication device wirelessly transmits and receives data to and from another communication device.

[0012]

According to the configuration of the present invention described above, the ID number generated from the telephone number is used.

Since the telephone number has a number system that is uniquely given to each household when including the area code, an ID number is generated so as not to lose the information of this telephone number, so that it is unique to each household. An ID number can be assigned. Since this telephone number is managed by the public network service provider, an ID generated from the telephone number
It is not necessary for the manufacturer or user of the communication device to manage the number.

To input the telephone number to the communication device, the telephone number is input to the telephone from the public network via the public line. In this case, although a mechanism for sending the user's telephone number to the public network side is required, the user can save the trouble of inputting the telephone number and intercept the data by intentionally setting the telephone number of another person. Can be prevented.

With the recent widespread use of mobile phones and car phones, a method of registering a telephone number in a storage medium such as an IC card has been proposed by the Japan Telegraph and Telephone Technical Committee and standardized. The ID number is generated from the telephone number stored in the storage medium as the input of the telephone number. As a result, the user can implement the functions of the present invention by a simple method of mounting the storage medium of the communication device. Even in this method, it is not possible to intentionally set another person's telephone number.

When an ID number generated from the telephone number input in this way is stored and data is transmitted from the communication device, the data is transmitted with the ID number added. In the communication device that receives the data, the data is transmitted from the communication device used in the area by determining whether the ID number in the transmitted data is the same as the ID number stored by itself. It is possible to identify whether the data is transmitted from a communication device used in another adjacent area.

As described above, it is possible for the user to set a unique ID number for each usage area and to specify the usage area of the communication device by the ID number without special management for the ID number. Become. Further, in the case where the encryption key is also sent when the telephone number is sent to the communication device as described above, the ID number or the entire data is encrypted using this encryption key when the data is sent from the communication device. As a result, even if the ID number is stolen due to interception of radio waves, it becomes impossible to distinguish the telephone number from the ID number.

[0018]

Embodiments of the present invention will now be described in detail with reference to the drawings.

Embodiment 1 FIG. 1 shows a communication system according to Embodiment 1 of the present invention. Referring to FIG.
And a wireless communication device 8 connected thereto, and a wireless communication device 15 having the same configuration as the wireless communication device 8 and transmitting / receiving data to / from the wireless communication device 8. In this embodiment, the number of wireless communication devices is two, but the number is not limited to this.

The telephone 1 has a conventional telephone function realizing unit 2 for realizing a function as an ordinary telephone, a telephone number storage unit 3 for storing a telephone number uniquely given to a user of the telephone 1, and a telephone. It comprises a number output unit 4 for outputting a number to a wireless communication device 8 connected to it, and a public line connection unit 5 for connecting the telephone 1 to a public network 7 via a public line 6. The transmission of the telephone number from the public network 7 to the telephone 1 can be realized by transmitting the telephone number of the telephone as a tone signal or the like in response to the control from the telephone 1.

The wireless communication device 8 assigns an ID number based on this telephone number so that the telephone connection unit 9 connected to the number output unit 4 of the telephone 1 and the telephone number given from the telephone 1 are not lost. An ID number generation unit 10 to generate, an ID number storage unit 11 to store the generated ID number, an ID number in data from another communication device, and an ID number storage unit 1
1 is provided with an ID number comparison unit 12 that compares the ID number stored in 1 and outputs the comparison output, a wireless control unit 13 that controls wireless data generation and data transmission / reception, and an antenna 14. ing.

The wireless communication device 15 also has the same mechanism as the wireless communication device 8. Here, the wireless communication device 8 and the wireless communication device 15 can wirelessly transmit / receive data to / from another wireless terminal having a similar mechanism. This wireless terminal is also a wireless communication device in this embodiment. Although the data communication is wireless in this embodiment, the communication device is connected by wire between the user and the device of the user in the adjacent area, not between the devices used by the user. In some cases, a wired system may be included.

The telephone 1 queries the public network 7 for the user's telephone number via the public line 6 in order to obtain the user's telephone number, and responds to this inquiry by calling the telephone number given by the public network 7. It is stored in the number storage unit 3.

In registering an ID number to the wireless communication device 8, first, the telephone connection unit 9 of the wireless communication device 8 is connected to the number output unit 4 of the telephone 1 and then stored in the telephone number storage unit 3 of the telephone 1. The telephone number of the existing user is input to the wireless communication device 8. The ID number generation unit 10 of the wireless communication device 8 generates an ID number from the telephone number input here, and then the generated ID number is stored in the ID number storage unit 1
1 is stored. As a method of generating an ID number, for example, when the telephone number is 07435-3-5521,
The ID number is converted to numeric data as is, including the area code, as in 743535521, and the converted numeric value is used as the ID number so that the information amount of the telephone number is not lost. To do. It should be noted that the generation of the ID number based on the telephone number is an example, and in short, the ID number may be generated so that the information of the telephone number is not lost, and the ID number unique to the user may be used.

When the wireless communication device 8 is the transmitting side,
In the wireless control unit 13, the ID number stored in the ID number storage unit 11 is added to the header of the transmission data as in the example of FIG. 5, and then the transmission control of the data is performed via the antenna 14. The data transmitted from the antenna 14 of the wireless communication device 8 is received by the antenna 21 of the wireless communication device 15 on the receiving side. In the wireless communication device 15, the ID
The number comparison unit 19 compares the ID number stored in the ID number storage unit 18 with the ID number of the data received by the antenna 21.

When the wireless communication device 8 on the transmitting side and the wireless communication device 15 on the receiving side are both set by the same user, the ID number storage sections of both devices 8 and 15 are set. ID stored in 11, 28
Since the numbers are the same as each other and the ID number generated so as not to lose the information of the telephone number peculiar to the user is used, this ID number is also a peculiar number to the user,
By comparing the ID numbers, it is possible to specify that the devices are owned by the same user. That is, in the wireless communication device 15 on the receiving side, the ID number in the received data matches the ID number stored in its own ID number storage unit 18 as a result of the comparison in the ID number comparison unit 19. Only in this case, by processing the received data, the data transmission / reception can be realized after specifying the usage area of each wireless communication device.

If the ID number of the received data does not match the ID number stored in the ID number storage section 18 of the wireless communication device 15, the received data is the data transmitted from the wireless communication device in another area. Then, the received data is discarded. As an example of this discard, in the case of the ID number added to the transmission data from the wireless communication device of another user outside the user's usage area, the ID number is not matched and is discarded.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIG. With the widespread use of mobile phones and car phones, the Telegraph and Telephone Technical Committee has proposed and standardized the conversion of telephone numbers into IC cards. In the second embodiment, such an IC card storage medium is used. By adding a mechanism for obtaining a telephone number from this storage medium to the wireless communication device, an ID number to the wireless communication device is further added. It is intended to simplify the setting procedure of.

Referring to FIG. 2, in the communication system of the second embodiment, 22 is a storage medium such as the IC card described above, and has a telephone number storage unit 23 and a number output unit 24. Reference numeral 25 is a wireless communication device. Wireless communication device 2
Reference numeral 5 denotes a storage medium mounting unit 26 mounted on the storage medium 22 via the number output unit 24, and an ID number generation unit 27.
And wirelessly transmitting and receiving data to and from a wireless communication device that includes an ID number storage unit 28, an ID number comparison unit 29, a wireless control unit 30, and an antenna 31 and has a similar mechanism. Is possible. These wireless communication devices 25
The configuration is the same as that of the wireless communication device 8 of the first embodiment except that the telephone number connection unit 9 of the first embodiment is the storage medium mounting unit 26, and thus detailed description thereof will be omitted. To

The storage medium 22 is provided by a public network service provider, and the telephone number unique to the user of the storage medium 22 is stored in advance. The user is a wireless communication device 25
When the ID number is registered, the storage medium 22 is mounted on the storage medium mounting portion 26.

The wireless communication device 25 has the storage medium mounting section 2 thereof.
When the storage medium 22 is attached to the storage medium 6, the telephone number stored in the telephone number storage unit 23 is read from the number output unit 24 of the storage medium 22. The ID number generation unit 27 generates an ID number from the read telephone number as in the first embodiment, and then stores the generated ID number in the ID number storage unit 28.

In the second embodiment, since the ID number is stored and registered in the ID number storage unit 28 of the wireless communication device 25 in this manner, data transmission / reception with another wireless communication device is performed. In the same manner as in Example 1, at the time of data transmission, for example, the ID number stored in the ID number storage unit 28 is added to the data to be transmitted as shown in FIG. The ID number in the received data and the ID number stored in the ID number storage unit 28 are compared in the ID number comparison unit 29, and only the data having the same ID number is received, and the reception process is performed. The data to which different ID numbers are given is discarded because they do not match. Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIG. In the third embodiment, by making it possible to send out the telephone number together with the encryption key in the configuration described in the first and second embodiments, it is possible to prevent the telephone number from being discriminated by intercepting the ID number. is there.

Referring to FIG. 3, in the telephone 32 related to the communication system of the third embodiment, the conventional telephone function realization unit 2 is used in the same manner as the telephone 1 related to the communication system of the first embodiment.
The public line connection unit 5, the number output unit 34, and the telephone number storage unit 3 are provided. However, unlike the first embodiment, the encryption key storage unit 33 is provided.

Further, in the wireless communication device 36 related to the communication system of the third embodiment, similarly to the wireless communication devices 8 and 15 related to the communication system of the first embodiment, the telephone connection section 9 and the ID number generation section 10 are provided. And the ID number storage unit 38
Although the ID number comparison unit 12, the wireless control unit 13, and the antenna 14 are provided, unlike the first embodiment, an encryption key storage unit 37 is provided.

When the telephone set 32 obtains the user's telephone number from the public network 35 via the public line 6, it generates a random number inside the telephone set 32 and stores the random number as an encryption key in the encryption key storage unit 33. Keep it. In the generation of the encryption key, when the public network 35 transmits the telephone number, the public network 35 transmits the encryption key generated by a random number.

The telephone 32 is provided with an encryption key input section,
The user may be allowed to input the encryption key from the input device. In any case, the generated encryption key is stored in the encryption key storage unit 33.

When the number output unit 34 of the telephone 32 is connected to the telephone connection unit 9 of the wireless communication device 36, the telephone 32 of the telephone 32 is stored in the encryption key storage unit 33 together with the telephone number from the number output unit 34. Send the encrypted key. In the wireless communication device 36, the ID number generated from the telephone number is stored in the ID number storage unit 38 and the encryption key is stored in the encryption key storage unit 37 as in the first embodiment. When registering with another wireless communication device owned by the same user, the wireless communication is performed by using the telephone number and the encryption key stored in the telephone 32 without performing the telephone number registration from the public network 35 to the telephone 32. ID number registration and encryption key registration to the device are performed. As a result, the wireless communication devices of the same user have the same ID number and encryption key. In the wireless communication device 36, when transmitting data, the ID number stored in the ID number storage unit 38 is used as the encryption key storage unit 37.
It is encrypted using the encryption key stored in and is added to the transmission data. In this case, the entire transmission data is stored in the encryption key storage unit 37.
You may make it encrypt using the encryption key memorize | stored in. A wireless communication device that has received the data from the wireless communication device 36 and has the same configuration as the wireless communication device 36 uses the encryption key stored in the encryption key storage unit of the device to decrypt the received data. Confirm the ID number in the ID number comparison unit. In this case, the ID number generation is also applied when the method of the second embodiment is used.

Fourth Embodiment Next, a fourth embodiment of the present invention will be described with reference to FIG.

In the fourth embodiment shown in FIG. 4, a storage medium 39 such as an IC card is used as in the embodiment of FIG. In the storage medium 39 of the fourth embodiment,
Like the storage medium 22 of the second embodiment, the telephone number storage unit 23 and the number output unit 41 are provided, but unlike the second embodiment, the encryption key storage unit 40 is provided.
Further, in the fourth embodiment, the wireless communication device 42 is similar to the wireless communication device 25 described in the second embodiment in that the storage medium mounting unit 2 is used.
6, an ID number generation unit 27, an ID number storage unit 44,
ID number comparison unit 29, wireless control unit 30, and antenna 3
However, unlike the second embodiment, the encryption key storage unit 43 is provided.

The encryption key storage unit 40 of the storage medium 39 may store the encryption key in advance, or may store the encryption key generated by a random number when initially attached to the wireless communication device. To do. Here, the wireless communication device 42
Alternatively, a dedicated cryptographic input device may be prepared, and the user may input the cryptographic key by mounting the cryptographic input device, and the input cryptographic key may be stored in the cryptographic key storage unit 40 of the storage medium 39.

When the storage medium 39 is mounted in the storage medium mounting unit 26 of the wireless communication device 42, the storage medium 39 is stored in the cipher sound storage unit 40 together with the telephone number from the number output unit 41 for the wireless communication device 42. Send the encryption key.

In the wireless communication device 42, the ID number generated from the telephone number is stored in the ID number storage unit 44 and the encryption key is stored in the encryption key storage unit 43 as in the above-described embodiment.

When registering with another wireless communication device owned by the same user, since the same storage medium such as an IC card is used, the wireless communication device of the same user must have the same ID number and encryption key. Becomes

Data transmission / reception between the wireless communication device 42 and another wireless communication device is the same as the method described in the application to the first embodiment. According to the method of the fourth embodiment, the ID number obtained when the radio wave is intercepted is already encrypted, and it is impossible to determine the telephone number without knowing the encryption key. This allows
It is possible to prevent the telephone number from being discriminated from the ID number when the ID number is intercepted.

[0045]

As is apparent from the above description,
According to the present invention, by inserting the ID number generated from the telephone number in the transmission / reception data of the communication device, the trouble of number management becomes unnecessary, and the unique procedure of simplifying the setting procedure of the ID number to the communication device It is possible to generate the ID number of the communication device, and the use area of the communication device is specified by using the ID number.

Further, according to the present invention, by utilizing a storage medium such as an IC card storing a telephone number, which has been proposed and standardized by the Japan Telegraph and Telephone Technical Committee,
Furthermore, registration of the ID number in the communication device becomes simple, and the burden of registration work on the user can be reduced.

Further, according to the present invention, the encryption key is also sent when the telephone number is sent to the communication device on the sending side, and the encryption is performed by the above-mentioned encryption key when the ID number is generated. This prevents the telephone number from being discriminated from the ID number when the wireless communication device on the reception side intercepts the transmission data and the ID number.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a communication system according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram of a communication system according to a second embodiment of the present invention.

FIG. 3 is a schematic diagram of a communication system according to a third embodiment of the present invention.

FIG. 4 is a schematic diagram of a communication system according to a fourth embodiment of the present invention.

FIG. 5 is an example of a data packet used in the communication system of the present invention.

[Explanation of symbols]

 1 Telephone 2 Conventional telephone function implementation unit 3 Telephone number storage unit 4 Number output unit 5 Public line connection unit 6 Public line 7 Public network 8, 15 Wireless communication device 9 Telephone connection unit 10 ID number generation unit 11 ID number storage unit 12 ID Number comparison unit 13 Wireless control unit 14 Antenna

Claims (6)

[Claims] 1. A communication system for transmitting and receiving data between communication devices, wherein the communication device stores an ID number stored in an ID number generated from the same telephone number, and an ID number related to communication. And at least an ID number comparison means for comparing the ID number stored in the ID number storage means with each other, wherein the communication device serving as a transmission side puts the ID number in the transmission data and transmits it. The communication device that becomes the ID stores the ID number in the received data in the ID stored in the ID number storage means.
A communication system characterized by comparing with a number. 2. A telephone having a function of fetching and storing a telephone number from a public network, and the communication device generates an ID number from a telephone number given from the telephone. Communication system. 3. A storage medium having a telephone number storage means for storing a telephone number, wherein the communication device generates an ID number from a telephone number given from the storage medium. 1. The communication system according to 1. 4. The telephone further has a function of transmitting an encryption key together with a telephone number, and the communication device serving as the transmission side encrypts the telephone number with the encryption key to generate an ID number, and the reception side. 3. The communication system according to claim 2, wherein the communication device to be decrypted decrypts the encrypted ID number with an encryption key. 5. The storage medium further has a function of transmitting an encryption key together with a telephone number, and the communication device on the transmitting side encrypts the telephone number with the encryption key to generate an ID number, The communication device on the receiving side has an encrypted ID
4. The communication system according to claim 3, wherein the number is decrypted with an encryption key. 6. The communication system according to claim 1, wherein the communication device wirelessly transmits / receives data to / from another communication device.