JPH0954884A - Individual identification detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the production cost more inexpensive by providing an individual identification function by a non-contact ID card and a function detecting the existence of a human body. SOLUTION: An ID code detection part 1 transmits the polling signal S1 for a non-contact ID card by a fixed period via an antenna part 2, receives an ID signal S2 and outputs an ID code S3. A human body detection part 3 transmits a pulse signal S4 for detecting the human body via an antenna part 4, receives a reflection pulse signal S5 and outputs a human body detection signal S6 showing the presence or absence of the human body in a scanning area. The antenna part 2 for card and the antenna part 4 for human body detection are directed to the scanning area designated by a scanning area designation signal S7 and perform transmission/receptions. An identification judgment part 5 receives each of the ID code 3 and the human body detection signal S6, judges and identifies the status within a monitoring area and outputs the status as identification information S8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal identification detecting device, and more particularly to a personal identification detecting device capable of identifying and detecting a person concerned and an unauthorized visitor in an important facility requiring security (for example, an intelligent building or a nuclear power plant). .

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Laid-Open No. 62-2453 has been proposed.
As disclosed in Japanese Patent Application Laid-Open No. 93-52387 and Japanese Patent Application Laid-Open No. 4-52387, a contactless ID card that wirelessly receives a request signal and transmits a predetermined ID code (identification information) is provided to a resident person and an attendee. The person in the building and the entrance / exit are managed by having a card sensor in place and detecting the ID code.

[0003]

As described above, conventionally, by allowing each person to carry a non-contact ID card,
It manages people in the building and manages entrances and exits. However, it is impossible to detect an unauthorized visitor who does not have a contactless ID card. In order to detect unauthorized visitors, it is necessary to install a passive sensor such as a passive infrared detector and detect far infrared rays emitted from the human body to detect the presence or absence of a person. Therefore, in order to detect normal visitors who have a contactless ID card and unauthorized visitors who do not have a contactless ID card, it is necessary to install a card sensor and a passive sensor in appropriate places. There is a problem that it is expensive.

An object of the present invention is to provide a personal identification detecting device having both a personal identification function by a contactless ID card and a function for detecting an unauthorized visitor who does not have a contactless ID card.

[0005]

A personal identification detection device of the present invention is a personal identification detection device for performing identification detection using a contactless ID card that wirelessly transmits a predetermined ID code in response to an inquiry signal. And the presence or absence of a human body by scanning the monitoring area to detect the ID code from the non-contact ID card, and scanning the monitoring area to transmit a pulse signal and receive a reflected pulse signal. A human body detecting means for outputting a human body detecting signal, and the ID code detected by the card detecting means and the human body detecting signal output by the human body detecting means based on the human body detecting signal and the non-contact ID Identification means for identifying a person who does not have a card, and the identification means is adapted to detect the presence of a human body when the human body detection signal receives the ID code. Determines that the holder of the contactless ID card is present, the I with the human body detection signal indicates the presence of the human body
When the D code cannot be received, it is determined that there is a person who does not have the contactless ID card, and when the human body detection signal indicates that there is no human body and the ID code can be received, only the contactless ID card is received. It is determined that the human body has been left unattended, and the human body detection signal indicates that there is no human body, and the ID
When the code cannot be received, it is determined that the contactless ID card and the human body are not present.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. Here, areas A, B, and C indicate one scanning area when the personal identification detection device sequentially scans the inside of the monitoring area, and in the area A, the person 7A who has the non-contact ID card 6A exists. , Area B contains an unauthorized visitor 7B who does not have a contactless ID card, and Area C
Shows a state where only the non-contact ID card 6C is left. The contactless ID card is an IC card having a function of wirelessly receiving a polling (inquiry) signal and transmitting a predetermined ID code signal (identification information), and is hereinafter abbreviated as a card.

The personal identification detecting device of the present invention is an ID code detecting section 1 for detecting the ID code of each card, and a card for transmitting / receiving to / from each card by scanning the monitoring area by sequentially changing the directivity. Antenna unit 2 and a human body detection unit 3 that transmits a microwave pulse signal to receive a reflected pulse and detects the presence of a human body by utilizing the Doppler effect.
And the identification information S8 based on the output signals from the human body detection antenna unit 4 that scans the monitoring area by transmitting and receiving pulse signals by sequentially changing the directivity, and the output signals from the ID code detection unit 1 and the human body detection unit 3. And an identification determination unit 5 for outputting.

The identification information S8 is transmitted to the central processing unit 8 through the communication line, and based on this identification information,
The central processing unit 8 performs data processing such as location management, entry / exit management, and security management of the resident.

Now, the ID code detecting section 1 of the personal identification detecting device sends out the polling signal S1 for each card through the antenna section 2 at a constant cycle and the ID code signal S2 received through the antenna section 2. Based on ID
The code S3 is output. The card antenna unit 2 sets the directivity of the antenna in the scanning area designated by the scanning area designating signal S7, transmits the polling signal S1 for each card, and transmits the ID transmitted by the card in response to the polling signal S1. I receive the code signal S2
It is sent to the D code detection unit 1.

The human body detecting section 3 sends a pulse signal S4 for detecting a human body through the antenna section 4, and
The presence / absence of a human body in the scanning area is detected based on the reflected pulse signal S5 received via the antenna unit 4, and a human body detection signal S6 is output. The human body detection antenna unit 4 sends the pulse signal S4 to the scanning area designated by the scanning area designation signal S7, and also receives the reflected pulse signal S4 reflected by the human body and sends it to the human body detection unit 3.

The identification determination unit 5 receives the ID code S3 output by the ID code detection unit 1 and the human body detection signal S6 output by the human body detection unit 3, and outputs identification information S8.

By the way, when there is a card holder in the scanning area (area A shown in FIG. 1), the ID code signal S2
And the reflected pulse signal S4 are received together, the ID
The code S3 and the human body detection signal S6 indicating the presence of the human body are output.

When there is an illegal visitor who does not have a card in the scanning area (area B shown in FIG. 1), the human body detection signal S6 indicates that a human body exists, but the ID code is not output.

When only the card is left alone (area C shown in FIG. 1), the ID code is output, but since there is no reflected pulse from the human body, the human body detection signal S6 indicates the absence of the human body. If neither the card nor the human body is present, the ID code is not output and the human body detection signal S6 indicates that there is no human body.

As described above, the ID code S3 and the human body detection signal S6 allow the situation in the monitoring area to be grasped in the above four cases.

Next, the operation of the identification determination section 5 will be described with reference to FIG.

First, a scanning area for transmitting the polling signal S1 and the human body detecting pulse signal S3 is designated (step 101). The ID code S3 generated based on the ID signal S2 from the card and the human body detection signal S6 generated based on the reflected pulse signal S4 from the human body are respectively received (step 102).

Next, it is judged whether or not the ID code is received (step 103), and if the ID code is received, it is judged whether or not the human body is detected (step 104). Here, if there is a human body, it is determined that there is a card holder of the corresponding ID code in this scanning area, and the determination result, the scanning area, the ID code, etc. are stored and output as identification information S8 (step 105). .

In step 104, if there is no human body, it is determined that there is a card left in this scanning area, and the determination result, the scanning area, the ID code, etc. are stored and output as identification information (step). 10
6).

If the ID code is not received in step 103, the presence or absence of a human body is determined (step 10
7) Here, if there is a human body, it is determined that there is an illegal visitor who does not have a card in this scanning area, and the determination result, the scanning area, etc. are stored and output as identification information (step 108). ).

In step 107, when there is no human body, it is determined that neither a card nor a human body exists in this scanning area, and the determination result, the scanning area, etc. are stored and output as identification information (step 10).
9). After completing steps 105, 106, 108, and 109, the process returns to step 101, the scanning area is changed, and the same processing is repeated.

When a plurality of monitoring target areas are dispersed, a plurality of personal identification detecting devices are installed in a distributed manner, and one central processing unit is provided by a star type or multi-drop type communication network. Alternatively, the identification information may be transmitted to each of the plurality of monitoring target areas, and the entire plurality of monitoring target areas may be managed by one central processing unit. Further, the distributed processing may be performed by using a plurality of central processing units. Furthermore, a management function may be added to the personal identification detection device without separately providing a central processing unit.

[0024]

As described above, according to the present invention, the card detecting means for detecting the ID code from the non-contact ID card and the human body for detecting the presence of the human body by receiving the reflected pulse of the transmitted pulse signal. By providing the detection means, it is possible to detect normal visitors who have a card and unauthorized persons who do not have a card without installing a passive sensor in place like in the past. It becomes cheaper and more sophisticated location management, entry / exit management, and security management can be performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of an identification determination unit 5 shown in FIG.

[Explanation of symbols]

 1 ID code detection unit 2 Card antenna unit 3 Human body detection unit 4 Human body detection antenna unit 5 Identification determination unit 6A, 6C Non-contact ID card 7A Card holder 7B Illegal intruder who does not have a card S1 Polling signal S2 ID Code signal S3 ID code S4 Pulse signal S5 Reflection pulse signal S6 Human body detection signal S7 Scan area designation signal S8 Identification information

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hideo Takahashi 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation

Claims (2)

[Claims] 1. A predetermined I wirelessly in response to an inquiry signal.
A personal identification detection device for performing identification detection using a contactless ID card that transmits a D code, wherein the ID from the contactless ID card is scanned by scanning a monitoring area.
A card detecting means for detecting a code, a human body detecting means for scanning the inside of a monitoring area, transmitting a pulse signal, receiving a reflected pulse signal and outputting a human body detecting signal indicating the presence or absence of a human body, and the card detecting means. A discrimination means for discriminating between a person who holds the non-contact ID card and a person who does not carry the non-contact ID card, based on the ID code detected by the human body detection signal and the human body detection signal output by the human body detection means. Personal identification detection device characterized by. 2. The identifying means determines that there is a person who has the non-contact ID card when the human body detection signal indicates that a human body is present and the ID code is received, and the human body detection signal indicates that a human body is present. When it is not possible to receive the ID code, it is determined that there is a person who does not have the contactless ID card, and when the human body detection signal indicates that there is no human body and the ID code can be received, the contactless I
It is determined that only the D card is left unattended, and it is determined that both the contactless ID card and the human body do not exist when the human body detection signal indicates that the human body is absent and the ID code cannot be received. Item 1. A personal identification detection device according to item 1.