JPH0326204Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a centralized key management system, and particularly to a centralized management device using a computer as an operation/display device.

[Background technology]

Conventional devices of this type using relays use relay panels and display panels for key and door operation and status display, and are expensive and require a large space when scaled up. Furthermore, when the number of keys increases and exceeds the storage capacity of the device, it becomes necessary to install additional panels, which requires additional space and additional costs. In addition, since wiring is required to connect each relay panel and the key, wiring work is time consuming, construction costs are high, and it is difficult to change the number of rooms.

The present invention was developed in view of these shortcomings.The purpose of this invention is to use a computer to open and close a large number of electric locks and to manage the status of keys and doors, thereby making it easier to see and understand usage conditions that are difficult to grasp. However, the equipment cost is low, does not require a large installation space, does not require additional hardware, and has fewer wires between the control panel and the key.
The purpose is to provide a key central management device that does not require construction costs.

[Disclosure of invention]

This invention enables operations such as individually locking/unlocking electric locks installed in multiple rooms or simultaneous locking/unlocking, displaying the status of each room's door such as the open/close status and lock/unlock status of the key, and furthermore, the ability to control the opening/closing time of the key. A central key management device that automatically opens and closes based on reservation registration and displays and records the operation and status of keys and doors, includes a storage means that stores the layout of each room, key position, etc., and the usage status of each room at all times. , a display means for scanning and displaying the unlocked/closed state of the key, an input means for instructing locking/unlocking of a specific room in response to a request, and a means for transmitting the input instruction to the corresponding room side. , and means for receiving the instruction and operating the corresponding key or door.

With this configuration, the present invention uses a computer for operation, control, and display, and the status of the room key and door can be displayed in an easy-to-understand manner, making it possible to manage locking and unlocking without error. Relocation and changes can be made by changing the software, reducing construction costs as there is no need to add or change equipment, and the installation space is increased because the computer can be used as is to accommodate an increase in the number of stored keys. By multiplexing transmission between the computer and the receiving device, signals can be sent and received using one or two pairs of wires, reducing wiring costs and making it easy to change operating procedures as needed. It has the great effect of being programmable and preventing others from using it.

[Best form for implementing the idea]

FIG. 1 is a block diagram showing an embodiment of the key central management device of the present invention, and the present invention will be explained based on the embodiment shown in the figure.

In the figure, the side that performs centralized management includes a central processing unit (hereinafter abbreviated as CPU) 1, a light pen 2, and a high-resolution color display (hereinafter referred to as CRT).
It is abbreviated as ) 3, a printer 4, a floppy disk device 5, and a modem 6 for modulation and demodulation. (hereinafter referred to as the computer side). On the other hand, a feed terminal group 7 is provided on the key side to be controlled, and within the feed terminal group 7, there are feed terminals 7a to 7d and interfaces 7a' to 7d' for each of a plurality of rooms. is provided. Each interface 7a' to 7d' has
Electric strikes 8a-8d are connected correspondingly.

The floppy disk device 5 is input/output controlled by the CPU 1, and controls the layout of each room, keys, etc.
This constitutes means for storing the position of the door, etc. CRT3
is controlled by the CPU 1 and displays the contents stored in the floppy disk device, and
The CPU 1 scans each of the feed terminals 7a to 7d and displays the usage status of each room and the unlocked/closed status of each room. The light pen 2 constitutes an input means for specifying a room and a door and instructing the user to lock and unlock the key in response to the display on the CRT 3 in response to a request.

The modem 6 is connected between the CPU 1 and the feed terminal group 7, and modulates and demodulates transmission data. The modem 6 and the feed terminal group 7 are connected by one data line, and together with the modem 6 constitutes a transmission means. Data transmission is performed using a serial transmission method.

The feed terminals 7a to 7d each have a capacity of 16 data input channels and 16 data output channels, and each terminal is connected by a single data cable. Electric strike 8a-8d
has a built-in solenoid coil for locking/unlocking the key, a micro switch for detecting the opening/closing state of the door, etc., and is connected to the feed terminals 7a to 7d via interfaces 7a' to 7d', respectively.

Next, the present invention will be explained in more detail along with its operation.

The CPU 1 on the computer side to the floppy disk device 5 are installed in the main department of conference rooms, reception rooms, etc., and upon request from the users of the conference room or reception room, the CPU 1 is operated with a light pen 2 to provide instructions. It is used for locking etc. Conference rooms and reception rooms are always displayed on the CRT3, and each designated opening/closing location block can be designated by operating a light pen, making it possible to manage 21 locations in total. or,
The printer 4 can print out daily schedules, schedules, usage times, etc. for conference rooms and reception rooms simply by touching the items with the light pen 2. These printed data will be used as reference data to improve the efficiency of meeting room and reception room usage in the future.

Now, when the computer receives notifications about conference rooms and reception rooms to be used, the layout of the rooms, etc. is displayed in color.
Display it on the CRT, select the room you want to use on the screen, and use the light pen to select the conference room,
Specify the reception room number, for example 205, and open/close the door/key. The status of the specified conference room and reception room is read by CPU1 on the computer side,
The command is converted into a signal and the signal is transmitted to the modem 6 in parallel. This signal is converted into a serial signal by a modem 6 and transmitted over a data line. In this example, the data transmission method is RS-232C.
Generally, this can be done by extending the computer data bus or by using a multiplex transmission method.

The data signal transmitted (multiplexed) from the modem 6 searches for the designated feed terminals 7a to 7d (7a in the above case), searches for the conference room and reception room (No. 205) occupied by it, and opens and closes the designated feed terminals. let In this case, the number of conference rooms and reception rooms that can be accommodated at each feed terminal is eight. Since the usage status of the conference room/reception room is scanned by the computer every two seconds, the usage status is displayed as data every moment on the computer side CRT 3.

Conference room/
The reception room is opened and closed, but in this case, a solenoid coil is used to open and close the key, so there are differences in voltage levels. For this reason, it is necessary to operate a relay drive as an interface between the feed terminal and the conference room/reception room key.
Also, the voltage on the feed terminal side is DC12V,
Since the key is DC24V, interface 7
Attach a' to 7d' and control the room.

With this configuration, the central management device of the present invention has the following features in terms of operation and effect.

(1) Along with recording the key operation status, the schedule for opening/closing keys, reservations for use, etc. is performed by searching the operation status data from the corresponding room master to the designated master file using a program stored in the computer. , write in the designated master file of the room, register the usage time and number of times in the room master, and specify the usage time and number of times of use, such as daily total, monthly total, and cumulative total, for one room. Furthermore, by inputting the specified output time, the management master can use the computer's built-in timer to
The output can be automatically printed on a printer. Additionally, by registering for a reservation, it is possible to automatically unlock the key at a designated time.
This is done when the specified time and the computer's built-in time are matched using a built-in timer, and the results such as the daily balance sheet, usage status, and number of usage can be printed out at any time. can.

Furthermore, in room management, all rooms may be opened or closed all at once.
OPEN” and “ALL CLOSE” can be easily done using the light pen.

(2) In the system configuration of this embodiment, one floppy disk can accommodate up to 56 rooms. Normally, when the number of rooms exceeds about 20, it becomes impossible to install the management device in a small space such as a business desk.
Since it is fixed by leaning against a wall, operation buttons etc. must be installed separately, and installation wiring work between the display panel and operation control section is required, which increases costs. By replacing it with a computer, it can be made smaller, the operation section and display section can be installed on a business desk, and it can be easily moved.

Further, a high-resolution color display is used for the display unit, and the number of rooms to be displayed can be displayed and operated as long as the memory capacity of the computer allows. Therefore, even if the number of rooms to be managed increases, it can be handled by changing the program without requiring large-scale construction, so there is only a slight increase in expenses, including equipment, and it can be operated in a small space. .

(3) Additions and rearrangements of rooms are conventionally handled by adding more equipment and replacing wiring, but by using a computer, additions and changes can be made to the master file on the floppy disk.
You can easily modify the program. Therefore, the construction period and cost will be significantly improved.

(4) When looking at the system as a whole, in the conventional system configuration, wiring is required for the number of facilities for unlocking keys, and the same is true when expanding the number of facilities. Inspections also take time. By using a computer and a multiplex transmission device, the wiring between each device and the computer can be connected with a single line, making it possible to send and receive a large amount of data, making it possible to efficiently reduce construction costs, construction periods, and maintenance.

(5) By having the program perform a line check each time the line is opened or closed, if there is a line failure, an error message will be displayed and appropriate response can be taken.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the central key management device of the present invention. 1...Central processing unit (CPU), 2...Light pen, 3...High resolution color display (CRT),
4... Printer, 5... Floppy disk device, 6... Modem, 7... Feed terminal group, 7a to 7d... Feed terminal, 7a' to
7d'...Interface, 8a-8d...Electric strike.

Claims (1)

[Scope of claim for utility model registration] Operations such as individually locking/unlocking electric locks installed in many rooms or locking/unlocking them all at once, status display such as the open/closed status of each room door and locked/unlocked status, and furthermore, the lock A central key management device that automatically opens and closes rooms by registering reservations for opening and closing times, and displays and records the operation and status of keys and doors. A display means scans and displays the usage status of the room, the unlocking/closing state of the key, etc.; an input means for instructing locking/unlocking of a specific room upon request; and an input means for transmitting the input instructions to the corresponding room side. 1. A central key management device comprising: means for transmitting the instruction; and means for receiving the instruction and operating the corresponding key.