JP4145693B2 - Use record collection system of supplies by infrastructure equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a system for collecting usage record data of supplies supplied by infrastructure equipment.
[0002]
[Prior art]
The usage amount of supplies such as electricity, gas, and water supplied by the infrastructure equipment is measured by a measuring instrument installed in each house, and the measured value is displayed on the display unit of the measuring instrument. Then, the supply supplier such as a gas company visits the meter reader to check the measurement value, or the measurement device and the data management center of the supplier are communicably connected to receive the measurement value data. By doing so, the usage record of the supply is confirmed and the fee is collected.
[0003]
However, when checking the display of the measuring instrument by the meter reader, labor costs for the meter reader are required, and when receiving the data of the measured value by communication, the measuring instrument is added along with the addition of the communication function. There is a disadvantage that the cost increases.
[0004]
Therefore, in recent years, by using a camera-equipped mobile phone that has been rapidly spreading, by requesting the user to image the display unit of the measuring instrument and send the imaged data to the data management center of the supplier, A system has been proposed that acquires the usage record of the supply (Patent Document 1).
[0005]
According to such a system, the labor cost of the meter reader becomes unnecessary, and by using the camera-equipped mobile phone owned by the user and its communication line, the actual data of the supplies can be obtained using the existing measuring instrument as it is. Since transmission is possible, there is no increase in the cost of measuring instruments due to the addition of communication functions.
[0006]
However, when the user is requested to collect and transmit the usage record data of the supply in this way, there is a possibility that the imaging data of the record data may be falsified by the user. In this case, correct use record data is collected. There is an inconvenience that it cannot be done.
[0007]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-280999
[Problems to be solved by the invention]
The present invention eliminates the above inconveniences, and prevents the use result data from being falsified by the user when the supply use result data collected by the infrastructure facility is entrusted to the user of the supply. The purpose is to provide.
[0009]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides the usage record data of a supply by infrastructure equipment including at least one of gas, electricity, and water and a user identification code that can identify the user of the supply. Use result display having encrypted image data generating means for generating encrypted image data encrypted and converted into image data, encrypted image display means for displaying the encrypted image data, and use of the supply An imaging data receiving means for receiving, via a network, imaging data on the display screen of the encrypted image data that the person has imaged and transmitted by the camera-equipped mobile terminal, and using the supply by decrypting the imaging data data collection device having an imaging data decoding means for extracting and achievements with said user identification code comprises a city, the encrypted image data generating means of the feed Among the first encryption key that is commonly set for the plurality of suppliers and the second encryption key that is individually set for the plurality of suppliers, A corresponding second encryption key can be used, and a supplier identification code that can identify the supplier of the supply to be displayed is encrypted using the first encrypted data and displayed. A first encryption process for encrypting the supply result data and the user identification data of the target product using the second encryption key; the supplier identification code; and the user identification code; And a second encryption process for encrypting the supply result data of the supply to be displayed using the second encryption key. Perform either one of the processes to generate the encrypted image data, The imaging data decryption means manages a first decryption key corresponding to the first encryption key, performs a decryption process using the first decryption key on the imaging data, and supplies the supply Imaging part data transmitting means for extracting a person identification code and transmitting imaging part data including a part of the imaging data corresponding to the use record data to a supplier terminal device identified by the supplier identification code; The second decryption key corresponding to the second encryption key is managed, and the imaging partial data received by the terminal device of the supplier is decrypted using the second decryption key And a usage record extracting means for extracting the usage record data .
[0010]
According to the present invention, the encrypted image data generating means generates the encrypted image data by encrypting the usage record data of the supply and the user identification code. Then, since the encrypted image display means displays the encrypted image data, the user of the supply can recognize the usage record of the supply even if he / she visually recognizes the encrypted image data. Therefore, the usage record cannot be falsified. Therefore, by extracting the captured data of the display screen of the encrypted image data by the camera-equipped mobile terminal received by the imaging data receiving unit by the imaging data decoding unit and extracting the usage record of the supply The tampering by the user can be prevented and the usage records of the supply can be collected.
[0012]
The encrypted image data generation means encrypts the supplier identification code with the first encryption key by the first encryption process or the second encryption process, and The use result data is encrypted with the second encryption key to generate the encrypted image data.
[0013]
And the said imaging partial data transmission means extracted the said supplier identification code from the said encryption image data by performing the decoding process using the said 1st decoding key, and was identified by this supplier identification code The imaging partial data is transmitted to the supplier's terminal device. Thereby, the imaging part data transmission means sorts and transmits the imaging part data for each supplier identified by the supplier identification code while maintaining the confidentiality of the usage record data of the supply. be able to. Therefore, in the processing by the imaging partial data transmission means, each supplier can prevent the usage record data from leaking to other suppliers. In addition, the user may set only one transmission destination of all the encrypted image data regardless of the supplier of the supply, and the transmission destination of the encrypted image data for each supplier. Easy to use.
[0014]
Then, the usage record extracting means performs a decryption process using the second decryption key to extract the usage record data of the supply from the imaging portion data. In this case, since the use record data can be acquired only by the use record extracting means for managing the second decryption key, it is ensured that the use record data is leaked to other suppliers. Can be prevented.
[0015]
The encrypted image data is barcode display data for displaying a barcode on the display means, and the imaging data decoding means is recognized from an imaging portion of the barcode included in the imaging data. The decoding process may be performed based on information .
[0016]
In this case, by using the bar code display that is widely spread and has a high recognition rate from the captured image, it is possible to easily and reliably extract the usage record data of the supply by the decoding process.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
An example of an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall configuration diagram of a supply usage record collection system using infrastructure equipment according to the present invention, FIG. 2 is a detailed explanatory diagram of the use record collection system shown in FIG. 1, and FIG. 3 is a supplier data table and a user data table. FIG.
[0018]
Referring to FIG. 1, the usage record collection system of the present embodiment is a gas meter 2 (2a, 2b,..., 2n) provided in each house 1 (1a, 1b,..., 1n). ), Power meter 3 (3a, 3b,..., 3n, corresponding to the usage record display of the present invention), and water meter 4 (4a, 4b,..., 4c, display of the usage record of the present invention) Data of gas, electric power, and water usage that are measured by each of the equipment (container), and collect the data.
[0019]
That is, the user uses the mobile phone 5 with a camera (5a, 5b,..., 5n, corresponding to the camera-equipped mobile terminal of the present invention) to display the usage amount displayed on the gas meter 2, the power meter 3, and the water meter 4. Are captured and the captured data is transmitted to the data center 7 via the network 6. Then, the data center 7 classifies the imaging data received from the camera-equipped mobile phone 5 for each supplier of the supplies, transmits the gas usage record data to the management center 7 of the gas company, and uses the power usage record data. Is transmitted to the management center 8 of the power company, and water usage record data is transmitted to the management center 9 of the water station. The data collection device of the present invention is constituted by the data center 7, the management center 8 of the gas company, the management center 9 of the power company, and the management center 10 of the water station.
[0020]
Next, with reference to FIG. 2, a specific collection process of the usage record data will be described by taking as an example the case where the gas usage record data is transmitted to the management center 8 of the gas company.
[0021]
First, the gas meter 2n includes a display 30 (corresponding to the encrypted image display means of the present invention), an encrypted image data generation means 31, a first encryption key (EN_KEY1), and a second encryption key (EN_KEY2). And a memory 32 storing the above. Here, the first encryption key (EN_KEY1) is a public key provided from the data center 7, and the second encryption key (EN_KEY2) is a public key provided from the management center 8 of the gas company.
[0022]
Then, the encrypted image data generation means 31 uses the actual usage data, which is a measurement value of the accumulated usage of gas at a predetermined time (for example, 24:00 on the last day of the month), and the user identification that can identify the gas user. The code is encrypted using the second encryption key (EN_KEY2). Further, the encrypted image data generating means 31 uses a gas company supplier identification code (which is set so as to be able to identify the gas company, the electric power company, and the water station as the supplier of the present invention) as the first encryption key ( Encrypt using EN_KEY1). Then, the encrypted image data generation means 31 converts the encrypted data obtained by the encryption into a barcode, generates encrypted image data (CIP_dat), and generates the encrypted image data (CIP_DAT). It is displayed on the display 30.
[0023]
The encrypted image data generating means 31 encrypts the supplier identification code using the first encryption key (EN_KEY1) and uses the second encryption key (encrypted image data (C IP_dat)). The process of encrypting the record data and the user identification code that can identify the gas user corresponds to the first encryption process of the present invention.
[0024]
Here, the encrypted image data (CIP_dat) is displayed on the display 30 in the form of a two-dimensional barcode, the upper barcode corresponds to the encrypted data of the supplier identification code, and the lower barcode is the user identification. It corresponds to the encrypted data of the code and usage record data.
[0025]
In this way, the user images the barcode display screen of the encrypted image data (CIP_DAT) displayed on the display 30 with the camera-equipped mobile phone 5n, and transmits the image data (IMG_dat) to the data center 7. In this case, since the user does not have a decryption key corresponding to the first encryption key (EN_KEY1) and the second encryption key (EN_KEY2), it is impossible to decrypt the imaging data (IMG_dat) and extract the usage record data. . For this reason, it is possible to prevent the use result data from being falsified by the user.
[0026]
Next, the data center 7 includes a communication interface 40 (corresponding to the imaging data receiving means of the present invention), an imaging part data transmitting means 43, a database 41 storing a supplier data table (SUP_TB), a first And a memory 42 in which an encryption key (DE_KEY1) is stored.
[0027]
When the imaging data (IMG_dat) is received from the mobile phone 5n via the communication interface 40, the imaging partial data transmission unit 43 uses the first encryption key (DE_KEY1) as the imaging data of the upper bar code display unit. And the supplier identification code is extracted.
[0028]
Then, the imaging part data transmission unit 43 applies the extracted supplier identification code to the supplier data table (CIP_dat) stored in the database 41. As shown in FIG. 3A, in the supplier data table (CIP_dat), the supplier identification code, the supplier, and the communication destination address of the management center of the supplier are stored in association with each other.
[0029]
Therefore, the imaging part data transmission unit 43 can acquire the communication destination address corresponding to the supplier identification code by applying the supplier identification code to the supplier data table (CIP_dat). In the example of FIG. 2, the communication address (NAD_001) of the management center 8 of the gas company is acquired, and the imaging part data transmission unit 43 includes imaging data including image data of the lower barcode part of the imaging data (IMG_dat). The partial data (IMP_dat) is transmitted to the management center 8 of the gas company.
[0030]
In this way, in the data center 7, the process of sorting the user code and the usage record data transmission destination for each supplier is performed while maintaining the use record data encrypted. For this reason, it is possible to prevent the use result data from being leaked in the communication path between the data center 7 and the data center 7 and each management center (the management center 8 of the gas company, the management center 9 of the electric power company, and the management center of the water station). The
[0031]
Next, the management center 8 of the gas company obtains the communication interface 50, the database 51 storing the user data table (USR_TB), and the second decryption key (DE_KEY2) corresponding to the second encryption key (EN_KEY2). A stored memory 52, a usage record extraction unit 53, a usage record abnormality confirmation unit 54, and a charge billing unit 55 are provided.
[0032]
Then, the usage record extracting means 53 decrypts the data read from the barcode display portion of the imaging portion data (IMP_dat) using the second decryption key (DE_KEY2), thereby obtaining the user identification code (USR_ID). And gas usage record data (CON_dat).
[0033]
Here, in the user data table (USR_TB), as shown in FIG. 3B, data such as user data, past usage record data, measurement status, and payment status are associated with the user identification code. Is remembered.
[0034]
The usage record abnormality confirmation unit 54 applies the user identification data (USR_ID) to the user data table (USR_TB), acquires past use record data, and uses the past use record data and the current use record data ( CON_dat). When an abnormality such as an extremely large difference between the two is confirmed, it is considered that a failure of the gas meter 2n, a communication abnormality, or the like has occurred, and therefore processing for notifying the abnormality is executed.
[0035]
On the other hand, when no abnormality is found in the usage record data (CON_dat) by the user record abnormality confirmation means 54, the charge requesting means 55 sends an e-mail (CHG_mail) notifying the user of the gas usage amount and the charge. Sent to phone 2n. The user can perform the payment process of the gas fee by accessing the URL transmitted by the electronic mail (CHG_mail).
[0036]
Further, the charge requesting means 55 monitors the user data table (USR_TB), sends an e-mail requesting payment to the user who has not collected the charge, and stores the encrypted image data (IMG_dat). For users who have not yet been sent, an e-mail message that prompts the sending is sent.
[0037]
Similarly, when the user images and transmits the encrypted image data (CIP_dat) displayed on the display of the power meter 3, power usage record data is extracted at the power company management center 9, and the water supply When the encrypted image data (CIP_dat) displayed on the display of the meter 4 is imaged and transmitted, water usage record data is extracted in the management center 10 of the water station.
[0038]
In the present embodiment, the use result data is distributed to the supplier's management center by the data center 7, but without providing the data center 7, the user's mobile phone 5 directly supplies each management center. Then, the imaging data may be transmitted. In this case, it is necessary to designate and transmit the communication address of each management center, and set a pair of encryption key and decryption key used for encryption and decryption of imaging data for each supplier. There is a need.
[0039]
In the present embodiment, the encrypted image data (CIP_dat) that displays a barcode is used. However, the encrypted image data of the present invention is not limited to this, and is extracted from image data captured by a camera-equipped mobile terminal. Any display format is possible.
[0040]
In the present embodiment, the encrypted image data generation means 31 encrypts the supplier identification code using the first encryption key (EN_KEY1) and also uses the second encryption key (encrypted image data (CIP_dat) ) Was used to encrypt the usage record data and the user identification code that can identify the gas user, but the first encryption key (EN_KEY1) was used to encrypt the supplier identification code and the user identification code. And the second encryption key (the use result data may be encrypted using the encrypted image data (CIP_dat) (corresponding to the second encryption process of the present invention). The decryption process of the identification code is performed at the data center 7.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of a supply usage record collection system using infrastructure equipment according to the present invention.
2 is a detailed explanatory diagram of the usage record collection system shown in FIG. 1. FIG.
FIG. 3 is a configuration diagram of a supplier supplier data table and a user data table.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... House, 2 ... Gas meter, 3 ... Electricity meter, 4 ... Water meter, 5 ... Mobile phone with camera, 6 ... Network, 7 ... Data center, 8 ... Gas company management center, 9 ... Electric power company management center, DESCRIPTION OF SYMBOLS 10 ... Water department management center, 30 ... Display, 31 ... Encrypted image data generation means, 43 ... Imaging part data transmission means, 53 ... Usage record extraction means

Claims (1)

Encrypted image obtained by encrypting the use result data of the supply by the infrastructure equipment including at least one of gas, electricity, and water and the user identification code that can identify the user of the supply and converting it into image data A usage record indicator having encrypted image data generating means for generating data and encrypted image display means for displaying the encrypted image data;
A user of the supply supplies image data on the display screen of the encrypted image data captured and transmitted by the camera-equipped mobile terminal, and image data receiving means for receiving the image data via a network, and decrypting the image data A data collection device having imaging data decoding means for extracting the actual use of the supply and the user identification code ;
The encrypted image data generating means includes a first encryption key set in common for a plurality of suppliers of the supply and a second encryption key set individually for the plurality of suppliers. Among the first encryption key corresponding to the supplier of the supply to be displayed can be used, and the supplier identification code capable of identifying the supplier of the supply to be displayed is the first A first encryption process for encrypting the supply result data of the supply to be displayed and the user identification data using the second encryption key, The supplier identification code and the user identification code are encrypted using the first encrypted data, and the supply result data of the supply to be displayed is displayed using the second encryption key. Either one of the second encryption processing to be encrypted Performing management, to generate the encrypted image data,
The imaging data decryption means manages a first decryption key corresponding to the first encryption key, performs a decryption process using the first decryption key on the imaging data, and supplies the supply Imaging part data transmitting means for extracting a person identification code and transmitting imaging part data including a part of the imaging data corresponding to the use record data to a supplier terminal device identified by the supplier identification code;
The second decryption key corresponding to the second encryption key is managed, and the imaging partial data received by the terminal device of the supplier is decrypted using the second decryption key And a usage record collection system using infrastructure equipment, characterized by comprising usage record extraction means for extracting the use record data .

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