JPH05167470A - Individual recognition structure and individual recognition transmitter for the structure - Google Patents

Abstract

PURPOSE:To eliminate the need for an electric contact used to connect an individual recognition structure and an individual recognition transmitter by using an optical input output element so as to transmit/receive individual recognition information such as an individual recognition code and a charging optical power in terms of an optical signal. CONSTITUTION:The electric energy produced by charging use optical power incidence from an optical input output element 15 of an individual recognition transmitter is charged to a storage means 3 by an optical input output element 2 receiving an optical power and transmitting/receiving an optical signal. After charging, a feeding means 4 comprising a DC/DC converter 7 and the storage means 3 supplies power to each component circuit of the individual recognition structure 1 to prepare the read/write of an individual recognition code. The write of the individual recognition code is finished by receiving a write signal from the optical input output element 2 with a reception means 10 to access a recognition information storage means 8. In the case of reading, a read signal from the optical input output element 2 is inputted to the reception means 10, accesses the recognition information storage means 8 and a transmission means 9 receives the individual recognition code.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an individual recognition device having no electrical contact and an individual recognition transmission device for the individual recognition structure.

[0002]

2. Description of the Related Art A contactless individual recognition system using radio frequencies has been developed. A small transponder in which an antenna and an IC are hermetically sealed is attached to an individual requiring identification, and this transponder is pre-written with an identification number that cannot be changed at the factory. The power of the transponder is supplied by radio waves from the reader,
It is a system that sends a code number to a reader.

Further, as a general individual recognition transmission device, there is an individual recognition transmission device by reading a bar code to which a laser beam is applied.

[0004]

However, in the case where the individual to be recognized is small and a large number of them are densely recognized, when recognizing an arbitrary individual remotely, the above conventional technique cannot solve the problem.

First, in the case of using the above transponder, when the recognized individuals are adjacent to each other, the individuals existing in the power supply range respond almost at the same time, which makes it difficult to recognize any individual.

The barcode-based individual recognition method has a problem in that an arbitrary individual cannot be recognized remotely, or an individual cannot be recognized in a narrow environment where a barcode reader cannot be inserted.

In view of the above problems, it is an object of the present invention to provide an individual recognizing structure and an individual recognizing / transmitting device capable of remote monitoring without any electrical contact.

[0008]

The present invention, which achieves the above-mentioned object, provides an optical input / output device composed of a single or a plurality of optical semiconductor devices for receiving optical power and transmitting / receiving optical signals. A storage means for storing the light energy incident on the light input / output element as electrical energy,
Power feeding means for feeding the stored electric energy to the constituent circuits, individual recognition information storage means for storing unique recognition information for recognizing an individual, and individual recognition information write signal or read signal input to the optical input / output element It is characterized in that it is configured to integrally include a receiving means for receiving the individual recognition information and a transmitting means for transmitting the individual recognition information, and further, an optical input for optically connecting with the plurality of individual recognition structures. Both the output means and the selective input / output means for inputting / outputting information by making the input / output means of the arbitrary individual recognition structure connectable electro-optically, and the arbitrary individual recognition information are exchanged with the outside. It is characterized by having a communication means that enables a bidirectional communication.

[0009]

Since the individual identification information such as the identification code is transmitted and received as an optical signal by using the optical input / output element, there is no electrical contact between the individual identification structure and the individual identification transmission device, and the reliability is improved. .. Further, since the individual recognition structure includes a power storage unit for storing the light energy incident on the light input / output element as electric energy, an external power supply is unnecessary. Further, the unique information such as the recognition code can be written even after the individual recognition structure is attached to the individual. A plurality of individuals can be remotely recognized from any individual recognition transmission device by the communication means capable of bidirectional communication of the individual recognition transmission device.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of an individual recognition structure 1 which is an embodiment of the present invention.

In FIG. 1, an individual recognition structure 1 includes a light input / output element 2, a storage means 3, a DC / DC converter 7, a recognition information storage means (memory) 8, and an interface circuit 1.
2, a configuration including a preamplifier 11 and a driver circuit 13. The power storage unit 3 and the DC / DC converter 7 form the power supply unit 4, the interface circuit 12 and the preamplifier 11 form the reception unit 10, and the interface circuit 12 and the driver circuit 13 form the transmission unit 9. In FIG. 1, reference numeral 15 denotes an optical input / output element of the individual recognition transmission device.

In the individual recognition structure 1 having the above-mentioned structure, the optical input / output element 2 for receiving the optical power and transmitting / receiving the optical signal is formed and arranged. Optical input / output element 2
Charges the storage means 3 with electric energy generated by the incident light power from the light input / output element 15 of the individual recognition transmission device. After the charging is completed, by the power feeding means 4 including the DC / DC converter 7 and the power storage means 3,
Power is supplied to each constituent circuit of the individual recognition structure 1, and the preparation for reading and writing of the individual recognition code is completed. To write the individual identification code, a writing signal is input from the optical input / output element 2 by the receiving means 10, and the identification information storage means 8 is entered.
To access and complete. In the case of reading, a read signal is inputted from the optical input / output element 2 to the receiving means 10, the recognition information storage means 8 is accessed, and then an individual recognition code is transmitted from the optical input / output element 2 by the transmitting means 9.

The light input / output element 2 is an optical semiconductor element having a characteristic that it can be used as a light receiving element or a light emitting element, and each of a light emitting diode or a semiconductor laser, or these and a light receiving element such as a solar cell. It is configured in combination with a dedicated element, and any of the light receiving / light emitting elements may be used and is not particularly limited. The recognition information storage means 8 is preferably a non-volatile memory that does not lose its memory even when the power is turned off, and a memory element such as an EEPROM is suitable.

Therefore, according to the present embodiment, the individual recognition structure 1 is made into a chip and has a small size, so that it can be easily mounted on or built in an individual to be recognized, and the individual shape is not greatly affected. , Individual recognition is possible.

FIG. 2 shows a configuration example in which a charging means is added to the individual recognition structure 1 of FIG. In the figure, 5 and 6 are composed of photoelectric elements such as solar cells. The photoelectric element 6 is formed and arranged around the optical input / output element 2, receives the optical power for charging at the same time as the optical input / output element 2, and stores the electric energy in the electricity storage means 3.
To charge. Further, the photoelectric element 5 receives light around the individual recognition structure 1 and charges the storage means 3 with electric energy.

Therefore, according to this embodiment, the photoelectric device 5,
By providing 6, charging can be accelerated and replenished. FIG. 3 shows an embodiment of the individual recognition transmission device 14.

In the figure, the individual recognition transmission device 14 includes an optical input / output element 15-1 and an optical switch 15-n, analog switches 16-1 to 16-n, a preamplifier 21, a driver circuit 22, an interface circuit 20, and a CPU (central part). (Processing device) 19, chip selector 23, analog switch driving control lines 24, 25, and communication means 26. The preamplifier 21 and the interface circuit 20 constitute the receiving means 17, and the driver circuit 22 and the interface circuit 20 constitute the transmitting means 18.

In the individual recognition transmission device 14 described above, for example, the analog switch 16-1 is selected by the chip selector 23 for the individual recognition structure 1 having a unique recognition code in advance, and is turned on. As a result, the charging optical power signal and the read signal are transmitted from the transmission means 18 from the optical input / output element 15-1. As a result, after the individual recognition structure 1 is charged, an individual recognition code is transmitted and received by the CPU 19 via the optical input / output element 15-1 and the receiving means 17 to recognize the individual.

After that, the CPU 19 performs predetermined formatting on the recognition result to obtain individual recognition information,
This individual recognition information is transferred to another individual recognition transmission device via the communication means 26 through the dedicated communication line 27. By providing the communication means 26 with a two-way communication function, writing or reading of the individual recognition code can be performed by an external individual recognition transmission device.

Therefore, according to the present embodiment, it is possible to remotely recognize a plurality of individuals by downsizing and arranging the individual recognizing / transmitting devices 14 and arranging them in a network by means of communication means.

[0021]

As described above, according to the present invention,
Since the individual identification information such as the individual identification code and the light power for charging are transmitted and received by an optical signal using the optical input / output element, the electrical contact for connecting between the individual identification structure and the individual identification transmission device is excluded. Can improve reliability. In addition, the optical power input from the optical input / output element can be converted into electric energy and stored to be used as a power source for the individual recognition structure, which eliminates the need for an external power source. Further, the writing of the unique information such as the recognition code of the recognition information storage means is possible even after the individual recognition structure is attached to the individual, and the plurality of individuals can be remotely accessed by the communication means of the individual recognition transmission device capable of bidirectional communication. Can be recognized.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an individual recognition structure of the present embodiment.

FIG. 2 is a configuration diagram in which charging means is added to an individual recognition structure.

FIG. 3 is a configuration diagram of an individual recognition transmission device of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Individual recognition structure 2 Optical input / output element 3 Storage means 4 Power feeding means 5 Photoelectric element 6 Photoelectric element 7 DC / DC converter 8 Recognition information storage means 9 Transmission means 10 Reception means 11 Preamplifier 12 Interface circuit 13 Driver circuit 14 Individual recognition transmission Device 15 Optical input / output element 15-1 to 15-n Optical input / output element 16 Analog switch 16-1 to 16-n Analog switch 17 Receiving means 18 Transmitting means 19 CPU (central processing unit) 20 Interface circuit 21 Preamplifier 22 Driver circuit 23 Chip Selector 24 Control Line for Driving Analog Switch 25 Control Line for Driving Analog Switch 26 Communication Means 27 Communication Line

Claims (2)

[Claims] 1. An optical input / output element composed of a single or a plurality of optical semiconductor elements for receiving optical power and transmitting / receiving an optical signal, and optical energy incident on the optical input / output element as electrical energy. A storage means for storing electricity, a power supply means for supplying the stored electrical energy to the constituent circuits, an individual recognition information storage means for storing unique recognition information for recognizing an individual, and an optical input / output element An individual recognition structure comprising a receiving means for receiving an individual recognition information write signal or a read signal and a transmitting means for transmitting individual recognition information, which are integrated. 2. An optical input / output unit for optically connecting to a plurality of the individual recognition structures and an input / output unit of any one of the individual recognition structures are electro-optically connectable to provide information. An individual recognition transmission device comprising: a selection input / output unit for inputting / outputting; and a communication unit for enabling bidirectional communication of arbitrary individual recognition information with the outside.