JPS6250632B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that manages entry into a plurality of rooms by collating information media possessed by a person entering the room, and in particular, the present invention relates to a device that manages entry into a plurality of rooms by collating information media possessed by a person entering the room. The purpose of this device is to grant permission to enter the room only to people with disabilities, and to realize such a device with a cheaper configuration.

The figure shows an embodiment of the present invention, and 1 ₁ to 1 _N indicate the first
- Nth entrance door, 2 ₁ - 2 _N are first to Nth readers arranged near each entrance door and read personal information from an information medium such as a card owned by a person entering the room. The personal information is encoded, for example, in binary code and magnetically recorded on the information medium.

3 is a reader signal processing circuit, which receives the readout output of each reader, and in addition to the personal information PC, the reader selection code PC indicating which reader is currently being read and the personal information described above are received. Furthermore, when a plurality of readers operate simultaneously, processing is performed sequentially starting with a predetermined reader output according to a predetermined priority order. Reference numeral 4 denotes a reader selection circuit, which decodes the input reader selection code RC and provides a signal to the output AND gate group 5. That is, the output AND gate group 5 includes first to Nth AND gates 5 ₁ to 5 _N corresponding to the first to Nth readers 2 ₁ to 2 _N ,
The reader selection circuit 4 opens the AND gate corresponding to the reader selection code RC. 6 is a register that temporarily stores the personal information PC output from the reader signal processing circuit 3; 7 is an address selection that generates an 8-bit binary number _A0 to _A7 corresponding to the personal information stored in the register as an address signal. For example, if the personal information is "8" (A ₀ - _{A 7} ) =
Generates an address signal of (00010000).

8 and 9 are first and second memory element groups, respectively, and the first group 8 is the first memory element group corresponding to each of the entrance doors 1 ₁ to 1 _N.
~Nth RAM (Random Access Memory) 8 ₁
8 _N , and the second group 9 consists of the first to j-th RAMs 9 ₁ to 9 _j corresponding to the first to j-th entry permission time periods. The above-mentioned 1st to J entry permission times are 8:00-9:00, 9:00-10:00, and 10:00-10:00, respectively.
30, etc. When a signal is input to the write terminal W in each of the above RAMs, the 1-bit signal input from the input terminal I is written to the specified address, and when a signal is input to the read terminal R, the 1-bit signal stored at the specified address is written. is read out from output terminal O. Address designation in such a case is done by an 8-bit address signal input to address input terminals _a0 to _a7 .

Address signal A ₀ ~ generated by the address selection circuit 7
A ₇ is connected to each of the above via OR gates 10 ₀ to 10 ₇ .
Enters RAM address input terminals a ₀ to a ₇ (in the figure)
All OR gates and address input terminals except RAM9 _j
The connections between a ₀ to a ₇ are omitted. ), the strobe signal output from the reader signal processing circuit 3
ST enters the read terminal R of the RAM.

To register entry permission information to each RAM above,
Switch 11 and address operation unit 12 corresponding to RAM
and is provided. Each switch 11 applies one-bit signals of "1" and "0" to the input terminals of the corresponding RAMs, respectively, when turned on and off. The address operation unit 12 includes eight address switches and one write switch, and can be used to turn on or off the address switch.
In response to the off state, 8-bit address signals _A0 to _A7 are generated, and these signals enter address input terminals _a0 to _a7 of each RAM via OR gates ₁₀₀ to ₁₀₇ . Also, when the above write switch is operated, a write signal is generated.
WT is generated and the signal goes into the write terminal of each RAM.

The first to Nth elements constituting the first memory element group 8
The outputs of the RAMs 8 ₁ to 8 _N are the first to Nth AND gate groups 13 ₁ to 13 _N belonging to each of these RAMs.
to go into. 1st to Nth AND gate groups 13 ₁ to 13
Each of _N consists of first to j-th AND gates 14 ₁ to 14 _j corresponding to the first to j-th RAMs _{9 1} to 9 _j constituting the second storage element group 9, and each of these AND gates Input is auxiliary AND gate 15 ₁
~15 Connected to the output of _j . The auxiliary AND gates 15 ₁ to 15 _j have one input as the output of the first to j-th RAMs 9 ₁ to 9 _j constituting the second storage element group 9, respectively, and the outputs of the first to j-th clock sections 16 ₁ to 16 _j . The output is used as the input of the other. 1st to jth clock section 1
6 ₁ to 16 _j generate signals T ₁ to _{T j} representing the first to jth entry permission time periods described above, respectively. For example, the second clock unit ₁₆₂ generates signals from 9:00 to 10:00. Interval signal _T2 is generated. The outputs of the first to N-th AND gate groups 13 ₁ to 13 _N enter the OR gates 17 ₁ to 17 _N for each group, and the outputs of these OR gates enter the first to N-th AND gates 5 ₁ to 5 _N , respectively. .

18 ₁ to 18 _N are the first to Nth entrance doors 1 ₁ to 18 N, respectively.
1 _N , and each of the circuits has a first to Nth AND gate 5 ₁
~5 _N outputs are input, and the 1st to Nth entrance doors 1 ₁ ~
A signal for unlocking is given to the electric locks 19 1 to 19 _N , such as electromagnetic locks provided in each of the locks 19 ₁ to 19 _N , for a predetermined period.

Next, to explain the operation of the above-mentioned apparatus, we will first describe the case of registering a person entering the room. For example, if a person with personal information "8" is allowed to enter the room from the second entrance door ₁₂ during the first entry permission period (8:00 to 9:00), the first memory Both the switch 11 belonging to the _second RAM 82 in the element group 8 and the switch 11 belonging to the first RAM ₉₁ in the second memory element group 9 are set to ON, and the other RAMs are turned on.
Set all switches belonging to
Next, the address switch is set to indicate the personal information "8" in the address operation section 12, and finally the write switch of the same operation section is operated. This allows the first
A 1-bit signal is written to each address "00010000" (that is, 8) of the second RAM ₈₂ of the memory element group 8 and the _first RAM 91 of the second memory element group 9, and all 0s are written to the same address of each other RAM. is written and the registration is complete. Registration for other room occupants is done in the same way, and in the end, in the first memory element group 8, entry permission information for each room is stored at the address corresponding to the above personal information, and in the second memory element group 9, entry permission information for each room entry permission time period is stored. The entry permission information is stored at the address corresponding to the personal information.

The next case when entering the room after the above registration operation is completed will be described. For example, when a person entering the room with personal information "8" puts the information medium on the second reader 2 ₂ corresponding to the second entry door 1 ₂ during the first entry permission time period, the reader selection circuit 4 outputs the output AND gate group 5 The second AND gate ₅₂ of the first storage element group 8 and the first RAM ₉ of the second storage element group 9 are opened.
The contents of each 8th address of ₁ are read out, and both RAMs output an output, and a signal is also output from the first clock section _161.
Since T ₁ is out, the second AND gate group 13 ₂
The output of the first AND gate ₁₄₁ is generated, and this output enters the second control circuit ₁₈₂ via the OR gate ₁₇₂ and the second AND gate ₅₂ , and is connected to the second entrance door 1.
You can enter the room from ₂ . If the above person enters the room, the information medium is read by the reader of another entrance door that is not registered, or even if the second reader of the registered second entrance door ₁₂ is used, the time is not registered. During the time period, since no output is output from any of the first to Nth AND gate groups 13 ₁ to 13 _N , none of the first to Nth control circuits 18 ₁ to 18 _N operate.

By referring to the information stored in both the first and second storage element groups 8 and 9 based on the personal information read out by the reader in this way, the first to Nth
A signal giving permission to enter the room is output from the control circuits 18 ₁ to 18 _N , and it becomes possible to enter the room at a specific entrance door during a specific time period.

In addition, in a device having such a function, a simple RAM in which each address has a 1-bit structure can be used to manage entry for multiple types of entrance doors and multiple types of entry permission time periods. Price reduction can be achieved.

As is clear from the above description, according to the present invention, in a device that manages entry into a plurality of rooms by collating information media held by a person entering the room,
Permission to enter a specific room can be granted to a specific person only during a specific time period, and the entry permission information can be changed simply by changing the contents of the first and second memory element groups, and Such a device can be manufactured at low cost.

[Brief explanation of the drawing]

The figure shows a circuit diagram of an embodiment of the present invention, with 1 ₁ to 1 _N ...
...1st to Nth entrance door, 2 ₁ to 2 _N ...1st to Nth
Leader, 8, 9...first and second storage element groups.

Claims (1)

[Claims] 1. A device that manages entry into multiple rooms by checking the information media possessed by the person entering the room, including a reader placed corresponding to each room and reading personal information recorded on the information media, and a reader as described above. A rewritable first memory element group is provided corresponding to each room and stores entry permission information for each room in association with the above-mentioned personal information; a second rewritable storage element group that stores entry permission information on the belt in association with the personal information, and both the first and second storage elements A room entry control device that generates an entry permission signal by referring to information stored in a group.