JPH0978912A - Data communication device and entrance management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably shorten the operating time for making a master station read the data of a slave station in a structure for executing the communication with the slave station situated in the monitoring place of the master station. SOLUTION: A card reader 1 reads the card data from the file of a prescribed file number of a preset IC card 3 when the IC card 3 is brought into close contact with a read part 2, and transmits the card data to a door controller 4 after it notifies the read end. Since the card reader 1 thus can read the data of the file of the prescribed file number of the IC card 3 without being instructed from a door controller 4, the time for holding the IC card 3 to bring it into close contact with the read part 2 of the card reader 1 can be shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention performs data communication between a master station and a slave station having a unique identification code positioned at the monitoring place of the master station, and also allows the read data to be transmitted to a management device. The present invention relates to a data communication device for transmitting and an entrance management system using this data communication device.

[0002]

In recent years, for example, in order to prevent leakage of internal secrets, entry into a specific room is regulated, and an entry management system using an IC card is used as a means for that. Have been served. In other words, a card reader is installed at the entrance of the room, and the I
When the C card is in close contact with the card reader, the identification number is read from the IC card, and the electric lock on the door is unlocked only when the read identification number matches the previously registered identification number. Only persons in the room can be allowed to enter the room.

In this case, the processing flow for reading the IC card is as follows. (1) The card operator holds the IC card by hand while keeping it in close contact with the reading unit of the card reader. (2) The system instructs the card reader to read the specific data in the predetermined file by instructing the file number in the IC card. (3) The card reader is an IC specified by the system
It reads the data in the file by selecting the file number in the card and sends the card data to the system.

(4) The system checks the card data, instructs the card reader to end the process, and
Unlock the door. (5) The card reader notifies the card user of the end of processing by lighting the display or driving the buzzer based on the processing end instruction from the system side. (6) The card user releases the IC card from the card reader. (7) After entering the room, close the door and the system will lock the electric lock.

However, in the processing of (2), if the instruction contents are complicated by the application, the number of communication sequences increases, and as a result, the entire processing time becomes long.

Further, the processing times of (4) and (5) above may be lengthened or shortened each time the IC card is operated due to variations in processing on the system side. The time you have to hold the cards in close contact will vary with each operation. Therefore, the following problems occur.

(1) If the entire processing time becomes long, the card user is tired because he must keep holding the IC card by hand during that time. (2) If the processing time is different each time the card is operated, it is easy for the user to feel uncomfortable in the operation. In particular, if the processing time of an operator accustomed to the short processing time happens to be long, the IC card is separated from the card reader even if the processing is not completed, which causes an operation error.

The present invention has been made in view of the above circumstances, and an object of the present invention is to allow a master station to read data of a slave station in a configuration for executing communication with a slave station located at a monitoring place of the master station. It is to provide a data communication device and an entry management system capable of shortening the operation time for.

[0009]

According to the data communication installation of the present invention, data communication is performed and read between a master station and a slave station having a unique identification code located at the monitoring place of this master station. In the data communication device for transmitting the data to the management device, when the slave station is located at the monitoring place, the master station reads the data of the preset file number in the memory of the slave station. The read data is transmitted to the management device after the completion of reading is notified (claim 1).

In such a configuration, when the slave station is located at the monitoring place, the slave station can store data of a predetermined file number in the memory of the slave station without being instructed by the management device. Is read and the end of reading is notified, the slave station may be held at the monitoring place for a short time.

Further, the slave station may be provided with setting means for storing a predetermined file number (claim 2).

Further, in the entry management system of the present invention, the slave station stores entry management information as data of a predetermined file number, and the management device is based on the entry management information read from the parent station. Then, the predetermined door is unlocked (claim 3).

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an entrance management system will be described below with reference to the drawings. FIG. 1 shows the overall system configuration. In this FIG.
A card reader 1 as a master station is installed at the entrance of a specific room, and an IC card 3 as a slave station is closely attached to a reading unit 2 (monitoring place) of the card reader 1. This card reader 1 is a closely attached IC card 3
Is read and transmitted to the door controller 4 as a system.

The door controller 4 unlocks the electric lock 6 provided on the door 5 corresponding to the card reader 1 based on the data read from the card reader 1.

FIG. 2 is a block diagram showing the configuration of the card reader 1. In FIG. 2, the power supply unit 7 of the card reader 1 supplies power to the internal circuit by receiving power from the door controller 4 through a normal metal cable.
The CPU 8 operates according to a program stored in the ROM 9 and communicates with the door controller 4 through the communication interface 10. The memory 11 stores file numbers and various data. The IC card interface 12 controls communication between the CPU 8 and the IC card 3. The LED 13 lights up according to a command from the CPU 8 to notify the card user of various information. In this case, the yellow LED is for power supply notification, the green LED is for unlocking notification, and the red LED is for locking notification. Buzzer 14
Emits a notification sound in response to a command from the CPU 8.

Here, FIG. 3 shows the setting contents of the EEPROM in the memory 11 of the IC card. As shown in FIG. 3, the file is composed of a directory number, a directory name, a subdirectory number, and a data file number. Further, FIG. 4 shows a directory structure of files. As shown in FIG. 4, the directory structure is made up of a plurality of types of directories related to each other. Whether the data files under the directories are used, the data files under the sub directories are used, or the root directory is used. This is what decides which data file to use. The root directory is for setting the manufacturer, the directory is for setting the company, and the subdirectory is used for applications.
Also, data files are various types of information (entry permission information)
It is a file that contains.

Then, the card reader 1 selects the directory / subdirectory / data file of the IC card 3 to be read based on the file number, and reads the entry permission information in the data file.

FIG. 5 shows an example of the directory.
In this embodiment, a personnel department directory is set as an example of the directory, and employee data is managed by the personnel department directory.

The general affairs directory, the engineering department directory, and the welfare department directory are set as subdirectories. In this case, the general affairs directory manages the room entrance management files, the engineering department directory manages the engineering department drawing management room entrance management files, and the public welfare department directory manages the locker room entrance management files and the cafeteria cafe files. to manage. In other words, the feature is that entry is managed in units of departments that manage rooms by the directory.

Here, the entry management file is composed of the following data. (1) Type: Employee, part, officer, etc. (2) Employee number: 999999 (3) Expiration date: year, month, day (4) Entry permission room number: Up to 10 rooms can be registered

Next, the operation of the above configuration will be described. First, when the system is started up or the card reader is shipped, the file number of the IC card 3 to be accessed by the card reader 1 is registered in the EEPROM of the card reader 1.

In this case, as a means for registering the file number to be accessed in the card reader 1, as shown in FIG. 6, the file number is transmitted from the setting machine (setting means) 15 such as a personal computer to the card reader 1 by serial communication. And memorize.

FIG. 7 shows an operation when setting data of the IC card 3 by the personal computer. In FIG. 7, the setting machine 15 instructs the card reader 1 to write a file number. Then, the card reader 1 displays the EEPR
After writing the file number in the OM, you can set it in the setting machine 15.
Send back a signal.

Then, the setting machine 15 gives an instruction to read the file number, so that the card reader 1 reads the EEPROM.
After reading the content of, the OK signal is returned to the setting device 15. Then, the setting machine 15 compares and collates the write data and the read data. If they do not match, the above setting operation is repeated, and if they match, the setting operation ends.

When the file number is set in the card reader 1 as described above, the system is activated.
FIG. 8 shows a processing flow of the system. In FIG. 8, the door controller 4 intermittently outputs a card data request signal to the card reader 1. in this case,
Since the IC card 3 is not closely attached to the card reader 1, the card reader 1 returns a no-data signal. On the other hand, the card reader 1 repeatedly turns on and off the power source to suppress unnecessary power consumption.

Now, in order for an employee to enter a specific room, if the IC card 3 is brought into close contact with the reading section 2 of the card reader 1 installed at the entrance of the specific room, the IC card 3
Since the initial communication data is transmitted from the card reader 1 to the card reader 1, the card reader 1 determines that the IC card 3 is in close contact and continuously turns on the power of the IC card 3.
Turn off the yellow LED for 0.5 seconds. As a result, if the IC card 3 is brought into close contact with the reading unit 2 in a direction different from the normal direction, or if an incorrect IC card 3 is brought into close contact, the yellow
Since the ED is not turned off, it is possible to inform the card user of an operation error. In addition, if an abnormality occurs in the system, use a test IC card for the card reader 1
The quality of the card reader 1 can be easily determined by closely contacting the card reader 1 with.

Then, the card reader 1 reads the file number in the memory 11 of the IC card 3 set by the setting device 15 described above. That is, the card reader 1 selects a file of the IC card 3 set in advance. Then, the IC card 3 outputs a selection OK signal to the card reader 1 in response to the selection of the file.

As a result, the card reader 1 sends a card data read signal to the IC card 3. Then I
The C card 3 transmits the card data stored in the designated file to the card reader 1.

As a result of the above operation, since the card reader 1 reads the card data from the file set by the setting device 15, the buzzer 14 issues a notification sound to notify the card user of the completion of the reading. . Here, the card user can separate the IC card 3 from the card reader 1 when the notification sound is emitted from the buzzer 14.

Then, the card reader 1 checks the read card data. That is, the basic inspection of the card data is executed as follows.

(1) Format check: Is the data written according to regulations? (2) Checking the department and room number …… Are you trying to enter the permitted room of the permitted department? (3) Card communication time-out check …… Is the IC card 3 removed during reading?

Although the door controller 4 repeatedly transmits the card data request signal to the card reader 1, the card reader 1 that has read the card data from the IC card 3 requests the card data from the door controller 4. When receiving the signal, the check result and the card data are transmitted to the door controller 4. After that, the door controller 4 executes the check on the system as follows. (1) Lost card check (2) Expiration date check (3) Calendar check …… Is this the day when the entry is prohibited?

The card reader 1 which has finished checking the card data as described above suppresses power consumption by turning on / off the power supply to the IC card 3, and waits until the card separation is detected.

On the other hand, when the door data is judged to be correct as a result of the card data check, the door controller 4 unlocks the electric lock 6 of the door 5 and then instructs the green LED to turn on. As a result, the card reader 1 becomes green LE.
D is turned on and an OK signal is returned to the door controller 4. As a result of the above operations, the card user can
You can open and enter a specific room.

At this time, the door controller 4 moves the door 5
When is closed, the electric lock 6 is locked, and then the card reader 1 is instructed to turn off the green LED and turn on the red LED. As a result, the red LED lights up, so that the next card user can confirm that the door is locked.

According to the above configuration, the card reader 1
Since the file number to be read in the memory of the IC card 3 is stored in advance and the data is read from the file stored in advance when the IC card 3 is brought into close contact with the card reader 1, the card reader is read from the door controller. As compared with the conventional configuration in which the IC card is accessed through the, the time required for the reading instruction and the data check by communication from the door controller 4 can be reduced and the communication time can be shortened. Therefore, the card user can release the card data without waiting for the check result of the card data and the unlocking of the door, so that the holding time of the IC card 3 in the reading unit 2 can be shortened and the entire processing time can be shortened. be able to.

Since the card reader 1 is basically used to check the card data, the card data can be processed within a fixed time regardless of the processing load of the door controller 4.

Further, since the door controller 4 checks the card data in the system, the card reader 1 can immediately perform the next processing in parallel, and the processing time of the entire system can be shortened.

The present invention is not limited to the above embodiment, but can be modified or expanded as follows. The present invention may be applied to an IC card for confirming passage through a ski resort gate or an IC card that functions as a commuter pass.

[0040]

As is apparent from the above description, according to the data communication device and the room entrance management system of the present invention, when the slave station is located at the monitoring place, the master station stores in the memory of the slave station. Since the data of the predetermined file that is set in advance is read and the completion of reading is notified and the read data is transmitted to the system side, communication is executed by holding the slave station at the monitoring location of the master station. In the configuration, there is an excellent effect that the operation time for causing the master station to read the data of the slave station can be shortened.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an overall configuration according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing the configuration of a card reader.

FIG. 3 is a diagram showing setting contents of a file

FIG. 4 is a diagram showing a directory of files.

FIG. 5 is a diagram showing a personnel department directory.

FIG. 6 is a diagram showing a setting method for a card reader by a setting machine.

FIG. 7: Setting flow for setting a file number in a card reader with a setting machine

FIG. 8 is a processing flow showing data communication among a door controller, a card reader, and an IC card.

[Explanation of symbols]

1 is a card reader (master station), 3 is an IC card (slave station),
4 is a door controller (system), 6 is an electric lock, 14
Is a buzzer, and 15 is a setting machine (setting means).

Claims (3)

[Claims] 1. A data communication device for performing data communication between a master station and a slave station having a unique identification code located at a monitoring place of the master station, and transmitting the read data to a management device. When the slave station is located at the monitoring place, the master station reads the data of a predetermined file number set in advance in the memory of the slave station, and reports the read data after notifying the end of reading. A data communication device for transmitting to the management device. 2. The data communication apparatus according to claim 1, further comprising setting means for storing a predetermined file number in the slave station. 3. The slave station stores entrance management information as data of a predetermined file number, and the management device unlocks a predetermined door based on the entrance management information read from the master station. An entrance management system using the data communication device according to claim 1 or 2.