JP2006113662A - Safety management system by id encryption - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety management system by ID encryption for realizing much higher level of safety management by automatically or manually and periodically or non-periodically setting the conversion constants of position ID, and encrypting the position ID. <P>SOLUTION: This safety management system is configured to transmit/receive data between a controller CTL arranged at a fixed side and a tag T carried by a person by an optical signal and/or a radio wave, and to prescribe position ID and tag ID by determining through a database for authentication, and to operate various equipment for crime prevention management based on the determination result. Then, ID encryption by a controller CTL is set so that the conversion constants of the position ID can be automatically and periodically or non-periodically changed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a safety management system based on ID encryption, and in particular, in a management system that manages entry / exit by identifying normality and irregularity of tag non-portable and portable tags, the position ID conversion constant is automatically or manually set. In addition, the present invention relates to a safety management system using ID encryption that encrypts a position ID by setting it periodically or irregularly to perform higher-level safety management.

  Conventionally, as a management system that manages a person entering and leaving using a tag, an RFID comprising a tag receiver equipped with an antenna and a tag arranged on a moving object such as a person or a vehicle is used. An entrance / exit management system that is arranged at or near the entrance / exit, thereby identifying the authorized person who owns the tag and the non-permitted person who does not own the tag, and accurately manages entry / exit to the facility (Patent Document) 1) and, furthermore, a combination of a plurality of infrared transmitters with different wavelengths and a plurality of tags each possessed by a plurality of people to accurately manage individual entry / exit of each tag owner. A system (see Patent Document 2) has been proposed.

By the way, in the entrance / exit management system using the tag, the person who enters / exits the facility carries the specified tag, so that the identification of permission / non-permission of the entrance / exit is input to the tag in advance. If you enter the facility once you have entered the facility, you will be allowed to exceed the permitted time and remain in the facility, or if an unauthorized intruder carries a specific tag illegally However, since the position ID entered in advance in the tag cannot be easily changed, if you carry a legitimate tag, the tag bearer is authorized to be a legitimate person or improperly possessed. Since it is not possible to identify the authorized person, there is a limit in terms of management, and there is a problem that high-level safety management cannot be performed.
JP 2002-334382 A Japanese Patent Laid-Open No. 2003-21679

  In view of the problems of the conventional management system described above, the present invention is more sophisticated by encrypting the position ID by automatically or manually setting the position ID conversion constant and periodically or irregularly. An object of the present invention is to provide a safety management system using ID encryption that enables safety management.

  In order to achieve the above object, the safety management system using ID encryption of the present invention transmits and receives optical signals and / or radio waves between a controller arranged on the fixed side and a tag carried by a person, In a safety management system in which a position ID and a tag ID are specified by determination in the authentication database and various crime prevention management devices are operated based on the determination result, ID encryption by the controller is performed to convert the position ID. The constant is set to change automatically and periodically or irregularly.

  Further, the setting of the conversion constant of the position ID can be manually changed periodically or irregularly.

  According to the safety management system using ID encryption according to the present invention, an optical signal and / or radio wave is transmitted / received between a controller arranged on a fixed side and a tag carried by a person, and a determination is made in an authentication database. In the safety management system that specifies the position ID and tag ID and operates various crime prevention management devices according to the determination result, the ID encryption by the controller is automatically performed and the position ID conversion constant is automatically set. In addition, since it is set to change periodically or irregularly, the conversion constant of the position ID can be automatically changed, and the ID can be easily encrypted. Even a tag can prevent unauthorized use beyond a preset range, so that safety management can be performed at a higher level.

  Also, since the position ID conversion constant is manually changed periodically or irregularly, ID encryption can be easily and arbitrarily performed according to usage conditions, etc. , More advanced safety management.

  Embodiments of a safety management system using ID encryption according to the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a safety management system using ID encryption according to the present invention.
As shown in FIG. 1, this safety management system based on ID encryption is not limited to a fixed side such as a factory, office, government office, other building or structure, but is arranged on a wall or ceiling surface, for example. It is composed of a controller CTL that is installed and a tag T that is carried and possessed by a person, and transmits and receives optical signals and / or radio waves between the controller CTL and the tag T. The received signal is determined to be an authentication database arranged on the controller side, the position ID and the tag ID are specified, and safety management is performed according to the determination result, and the conversion constant of the position ID is changed. Thus, ID encryption is performed.

Details of the safety management system using ID encryption according to the present invention will be described with reference to the flowchart shown in FIG.
The controller CTL is not particularly limited. For example, as shown in FIG. 1, the controller CTL converts the position ID formed by the position ID generation circuit 1, the authentication determination circuit 2, and the position ID generation circuit 1. A computer CPU composed of a conversion constant generation circuit 10, an ID conversion circuit 11, and an ID reverse conversion circuit 12 for encryption, an external I / O control circuit 3, and the position ID generation circuit 1 through the ID conversion circuit 11 The optical signal conversion circuit 4 connected to the ID conversion circuit 11 so as to convert the converted signal of the converted position ID into the optical signal, and the authentication result from the database using the tag ID and the position ID as a key. An authentication database 5 connected to the authentication determination circuit 2, a control circuit 6 configured to control an operating device connected between the authentication determination circuit 2 and the external I / O control circuit 3, and a composite I The consist the ID conversion circuit 7 for the to convert the location ID and the tag ID.
If necessary, the optical signal conversion circuit 4 can be provided outside the controller CTL.

  In addition, an infrared light emitter 8, for example, a light emitting LED is connected to the optical signal conversion circuit 4 of the controller CTL to emit infrared light obtained by converting a signal from the converted position ID into an optical signal. Although not particularly limited, for example, the infrared light emission is received by a tag T carried or carried by a person.

  A plurality of infrared light emitters 8 such as light emitting LEDs can be connected to the optical signal conversion circuit 4 of one controller CTL. In this case, the infrared light emitter 8 is disposed at a place where an entrance / exit is detected, for example, at the inside / outside position of the gate, or inside / outside the virtual gate, and electrically connected between each infrared light emitter 8 and the controller CTL. In this way, it is possible to manage entrance / exit persons in a plurality of virtual gates.

  When the tag T is carried or carried by a person, for example, an operator, the tag T is formed like a name tag or a batch and is attached to the chest or suspended from the neck so as to emit infrared light directly from the external infrared light emitter 8. In the case where it can receive light or is mounted on a vehicle, it is configured to receive infrared light emitted from the outside such as a hood of the vehicle.

  As shown in FIG. 1, the tag T has a configuration in which a light receiving photodiode 20 capable of receiving infrared light emission in one case and an optical signal received by the light receiving photodiode 20 are converted into a position ID. The receiving circuit 21 configured to do so, the ID combining circuit 22 configured to combine the position ID and the tag ID (unique ID), and the transmission circuit 23 configured to combine the combined ID with a radio wave, for example, a radio signal. To do.

The receiver 9 for receiving the radio signal transmitted from the tag T is not limited to an external fixed side. For example, the receiver 9 is disposed in the vicinity of the controller CTL, and the external I / O of the controller CTL is used. It is electrically connected to the control circuit 3 and arranged so that the radio signal received by the receiver 9 can be input to the controller CTL.
One receiver 9 can receive signals from a plurality of tags. However, one receiver 9 is provided for each virtual gate, and each receiver 9 is connected to the outside of the controller CTL. The I / O control circuit 3 can also be connected.
The transmission / reception of the radio signal is not particularly limited, but can be performed by, for example, RFID (Radio Frequency Identification).

The external I / O control circuit 3 of the controller CTL is not particularly limited as an operating device. For example, as shown in the figure, an alarm sound is generated or an alarm light is provided together with the alarm sound. An alarm device 27 and the like, which are turned on, and a gate electric lock 26 and the like provided in the openable gate are connected.
In addition to the gate electric lock 26 and the alarm device 27, the operation device includes a camera that can temporarily store images, a color ball thrower that throws a color ball toward an intruder, and an abnormality confirmation. It is also possible to connect one or two or more of various operation devices such as a monitor that displays only the time image.

Next, the operation of the present invention will be described with reference to examples.
When a tag holder enters a preset controller CTL and an infrared light receiving area between tags, for example, a virtual gate, the converted position ID always encrypted from the controller CTL is an infrared signal in the virtual gate. The light is emitted from the infrared light emitter 8, for example, a light emitting LED.
In this case, the position ID formed by the position ID generation circuit 1 is input to the ID conversion circuit 11 and the conversion constant n is automatically or manually and periodically or aperiodically input from the conversion constant generation circuit 10 to the ID conversion circuit. 11, the position ID becomes the converted position ID encrypted by the ID conversion circuit 11. The encrypted post-conversion position ID is converted into an optical signal by the optical signal conversion circuit 4, and this is emitted as infrared light from the infrared light emitter 8 (light emitting LED).
The encrypted light beam at the position ID after conversion is received by the light receiving photodiode 20 on the tag T side, this optical signal is converted into the position ID by the receiving circuit 21, and then this position is detected by the ID composition circuit 22. A combined ID obtained by combining the ID and the tag ID (unique ID) is transmitted from the transmitting circuit 23 via the antennas 24 and 25 by radio waves, for example, radio signals.

  The combined ID that is the radio signal is received by the antenna 25 of the receiver 9 and the received signal is transmitted to the external I / O control circuit 3 in the controller CTL. The received composite ID is analyzed by the ID conversion circuit 7 in the controller CTL, the composite ID is decomposed into a signal of a position ID (after conversion) and a tag ID (unique ID), and the tag ID is sent to the authentication determination circuit 2. The position ID is input to the ID reverse conversion circuit 12.

Since the ID reverse conversion circuit 12 is supplied with the position ID (after conversion) analyzed by the ID conversion circuit 7 and the conversion constant n from the conversion constant generation circuit 10, the position ID (after conversion) is boiled. Is converted into a position ID, and when the position ID is input to the authentication determination circuit 2, the authentication determination circuit 2 determines the tag ID and the position ID by acquiring the authentication result from the authentication database 5. The authentication result is transmitted to the external I / O control circuit 3 through the control circuit 6 as a control signal.
If the authentication judgment result is good (OK), the tag electric lock 26 attached to the gate opening / closing door or the like can be unlocked by the control signal from the external I / O control circuit 3 and the tag carrier can pass. To do.
On the other hand, when the authentication determination result is determined to be abnormal (NG), it instructs the operation of various devices for crime prevention management connected to the external I / O control circuit 3, for example, the alarm device 27.

  Thereby, the tag ID is automatically or manually converted by the conversion constant generation circuit 10, the ID conversion circuit 11 and the ID reverse conversion circuit 12 of the computer CPU into the conversion constant periodically or non-periodically. Since it is encrypted, unauthorized use of the tag can be prevented in advance, and higher-level safety management can be performed.

  As mentioned above, although the safety management system by ID encryption of this invention was demonstrated based on the Example, this invention is not limited to the structure described in the said Example, In the range which does not deviate from the meaning, that The configuration can be changed.

  The safety management system using ID encryption according to the present invention encrypts the position ID, receives the light from the infrared light emitter with the tag, converts the position ID and the tag ID into a composite ID with the tag, and outputs the composite ID as a signal. Since it has a characteristic of preventing unauthorized use of the tag by receiving it at the receiver and converting it again at the controller, it can be suitably used for the application of the safety management system. In addition, for example, it can be used for surveillance and crime prevention of elderly people who are hesitant in hospitals and welfare facilities.

It is explanatory flow figure which shows one Example of the safety management system by ID encryption of this invention.

Explanation of symbols

CTL controller T tag CPU computer 1 position ID generation circuit 2 authentication determination circuit 3 external I / O control circuit 4 optical signal conversion circuit 5 database for authentication 6 control circuit 7 ID conversion circuit 8 infrared light emitter (light emitting LED)
DESCRIPTION OF SYMBOLS 9 Receiver 10 Conversion constant production | generation circuit 11 ID conversion circuit 12 ID reverse conversion circuit 20 Light reception photodiode 21 Reception circuit 22 ID synthetic circuit 23 Transmission circuit 24 Antenna 25 Antenna 26 Gate electric lock 27 Alarm device

Claims (2)

  Transmitting and receiving optical signals and / or radio waves between the controller arranged on the fixed side and a tag carried by a person, determining in the authentication database, specifying the position ID and tag ID, and In a safety management system that operates various security management devices according to the determination result, ID encryption by the controller is set so that the conversion constant of the position ID is changed automatically and periodically or irregularly. A safety management system using ID encryption, which is characterized by the above.   2. The safety management system using ID encryption according to claim 1, wherein the setting of the position ID conversion constant is manually or periodically changed.

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