JPH01223280A - Traffic control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention allows a card reader to read data transmitted from a contactless ID card and determine whether the data matches internally registered data or not. This invention relates to a traffic control device that outputs a door opening command for traffic control when the two conditions match.

[Prior Art] Figure 3 shows an example of the arrangement of this type of traffic control device, and shows an example of the arrangement of this type of traffic control device.
A door (3) for traffic control is provided at a place where the user enters and exits the room surrounded by the side wall (2) from the room 1). This door (3)
has an electric lock (31), which can be opened by turning the handle (4) when the electric lock (31) is unlocked. In this case, a card reader (10) is installed on the side wall of the door (3), and when a person carrying a contactless ID card approaches it, data is sent from the contactless ID card. At the same time, it is determined whether or not it matches internally registered data, and when the data matches, the electric lock (31) is unlocked.

Figure 4 shows the above-mentioned card reader (10) and contactless ID.
It is a block diagram showing the configuration of a card (20), in which the card reader (10) is equipped with a communication device (11) and an ID data matching detection device (12), and the contactless ID card (20) is equipped with a communication device (11) and an ID data matching detection device (12). (21), ROM (22), C
It is equipped with a microcomputer consisting of P U (23) and RAM (24), and a battery (25) for operating the microcomputer.

With this configuration, when the distance between the card reader (10) and the contactless ID card (20) becomes less than a predetermined value, they communicate with each other via the communication devices (11) and (21), and the contactless ID card (20) ) sends the ID data and I
D data match detection device determines whether there is internal data that matches this, and if there is a match, electricity 1f
An unlock command is output to (31).

FIG. 5 is a block diagram showing the detailed configuration of the ID data matching detection device (12) described above, in which the CPU (121)
, ROM 1 (122) for storing the ID number and ID data of the person permitted to pass, ROM (123) for storing the program for detecting a match, RAM for storing necessary data at any time. (124) and
A clock (125), a communication interface (12B),
Output interface (127) for electric lock (31)
It is made up of.

In FIG. 5, the I received by the communication device (11)
D data is sent to RA via communication interface (126).
M (124). CPU (121)
executes the program stored in the ROM (123) to determine whether or not the same ID data as the ID data stored in the RAM (124) is stored in the ROM I (122). If it exists, it further refers to the time on the clock (125) and activates the electric lock (31) via the output interface (127) only if it is within the specified time to actually pass. Outputs unlock command.

[Problems to be Solved by the Invention] In the conventional traffic control device described above, for example, if the contactless ID card (20) is left near the card reader (10) or intentionally placed near it, If this were the case, there was a problem that the door (3) could be opened at any time, so it no longer served as a security system.

This invention was made to solve the above problems, and is a traffic control device that can maintain security functions even if a contactless ID card is left behind or intentionally left near the card reader. The purpose is to obtain.

[Means for Solving the Problems] A traffic control device according to the present invention includes a continuous detection means for detecting that the same ID data has been read continuously in a card reader, and a continuous detection means for detecting that the same ID data has been read continuously, and that a door for traffic control is opened. The door open detection means detects a sequence of ID data, and the door open detection means counts the number of times the door is not opened. The device is provided with an operation stopping means that stops the discrimination process for the corresponding non-contact ID card or prevents the output of the door opening command when the contactless ID card is detected.

[Operation] In this invention, when it is detected that the same ID data has been read continuously, and the number of reads within a predetermined period of time without the door being opened exceeds a predetermined value, the The discrimination process is canceled or the door opening command is not output, so even if you forget or intentionally leave your contactless ID card near the card reader, you will not be able to open the door. Therefore, the security function can be sufficiently maintained.

[Embodiment] FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and the same reference numerals as in FIG. 4 indicate the same elements. Other than these, (5) is the manager's room, and (51) is the alarm installed in this manager's room.
(13) is a continuous detection means for detecting that the same ID data is continuously applied from the communication device (11) to the ID data coincidence detection circuit (12);
) is actually opened;
15) is when the continuous detection means (13) detects continuity of ID data, the door open detection means (14) counts the number of times the door is not detected as being open, and the counted value within a predetermined time exceeds a predetermined value. This is an operation stop means that stops the ID discrimination process and also sounds the alarm in the manager's room (5).

The operation of this embodiment configured as described above will be explained according to the flowchart of FIG.

First, in step (201), the continuous detection means (13) judges whether or not the card reader (IO) has read the ID data, and further, in step (202), the continuous detection means (13) judges whether or not the card reader (IO) has read the ID data. Determine if you have ever led.

Next, in step (203), the operation stopping means (15) detects the same ID based on the output of the door open detection means (14) and the output of the continuous detection means (13), even though the door is not actually opened. Determine whether the data has been read three times within 5 minutes, and if it has been read, step (204)
At the same time, a stop signal for the discrimination processing operation is given to the ID data matching nuclear detection device 12), and at the same time, an alarm command is given to the alarm device (51) in the manager's room (5).

If the same person's ID card has not been read twice within one minute in step (202), in step (205) the ID data matching nuclear detection device 12) is set to pass conditions (validity period, passable screen, passable (possible time) is appropriate or not,
If appropriate, an electric lock unlocking signal is output in step (20B).

In this embodiment, the case where the traffic control door is equipped with an electric lock has been explained, but if the traffic control door is one that opens and closes automatically, the door can be opened instead of blocking the electric lock release signal. It may be configured to prevent the output of commands.

Furthermore, the present invention is not limited to what has been described above, and may be modified and implemented, for example, as described in the following sections fl- and -g.

a. In the above embodiment, the number of times the ID data is read continuously is detected, but instead of this, the time during which the same card continues to communicate or the number of communications may be counted.

b. In the above embodiment, an ID card with a built-in battery was explained, but it can also be applied to an ID card that uses received radio waves as a power source without using a battery, or an ID card that has only passive elements such as a resonant coil or an ultrasonic vibrator. The present invention can also be applied to.

C. When there is an alarm card, the data of that card may be stored and no further determination processing will be performed on that card. Note that in this case, a manual reset is required.

d. In the above embodiment, the ID number and traffic conditions were stored in the ROMI, but instead of this, a host CPU is placed above the card reader, and the 10 number and traffic conditions are stored in the host CPU.
It is also possible to set the data to U and send the data to the card reader.

e. The ID card may be one that does not use a CPU.

f, the ID card may be a simple one that represents the ID number by a combination of predetermined frequencies f+-fn.

g. The present invention can also be applied to a traffic control device that uses not only an ID card but also a numeric keypad and human body characteristics (fingerprints, voice prints, handprints, etc.) to perform ID discrimination.

[Effects of the Invention] As is clear from the above explanation, according to the present invention, it is possible to detect that the same ID data has been read continuously, and to detect that the same ID data has been read continuously within a predetermined time while the door is not opened. If the number of times exceeds a predetermined value, it will no longer be possible to open the door to the paddy, so a contactless ID card will be installed near the card reader.
The effect is that the security function can be sufficiently maintained even if the card is forgotten or intentionally left behind.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
FIG. 2 is a flowchart for explaining the operation of the same embodiment, FIG. 3 is a diagram showing an example of the arrangement of main elements of a conventional traffic control device, and FIG. 4 is a diagram showing the overall configuration of a conventional traffic control device. Block Diagram FIG. 5 is a block diagram showing the detailed configuration of the main parts of the device. (3) Two doors (10): Card reader (11), (21): Communication device (12): ID data matching detection device (13):
Continuous detection means (14): Door open detection means (15): Operation stop means (20): Non-contact ID card In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] Non-contact I that communicates when the mutual distance is less than a predetermined value
Equipped with a D card and a card reader, the card reader reads data transmitted from the contactless ID card, determines whether the data matches internally registered data, and when the data matches, traffic control is performed. In the traffic control device that outputs a command to open a door, the card reader includes a continuous detection means for detecting that data of the same non-contact ID card is read continuously, and a continuous detection means for detecting that data of the same non-contact ID card is read continuously, and a continuous detection means for detecting that data of the same non-contact ID card is read continuously. The door open detection means detects the continuity of data, and the door open detection means counts the number of leads in which the door open detection means does not detect the opening of the door, and the counted value within a predetermined time exceeds a predetermined value. 1. A traffic control device comprising: an operation stop means for stopping the discrimination process of the corresponding non-contact ID card or preventing the output of the door opening command when the number of doors exceeds the limit.