JPH05509B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a traffic control door at the entrance/exit of a specific surveillance area, and particularly to a traffic control door that can reliably prevent simultaneous passage of outsiders with a simple configuration.

[Prior Art] Generally, traffic is sometimes controlled to prevent unauthorized persons from entering specified monitoring areas such as computer centers, safes, power generation and substations, etc.
In this case, a traffic control door is provided at the entrance/exit to the specific area, and conventionally, this type of traffic control door has an ID discriminator installed near the front of the door, and the door is unlocked based on the discrimination result of the ID discriminator. By keeping the gates locked or locked, the traffic of passersby was controlled. In this traffic control door, when the door is unlocked based on the discrimination result of the above-mentioned ID discriminator, the passerby who is the above-mentioned ID discriminator passes at the same time as the passerby who is the above-mentioned passerby passes. There was a risk that outsiders could intrude.

Furthermore, in order to reliably prevent the passage of outsiders other than the person whose ID has been determined, conventional traffic control doors are provided with two doors facing each other at the entrance and exit, and a gate is formed between the two doors. In a closed space where
There were cases in which traffic was controlled by determining that the ID belonged only to the person in question.

However, after performing ID discrimination in the closed space, the two doors are operated and controlled separately, which requires a lot of time and effort for the equipment for each door before and after ID discrimination. The mechanism was becoming complex. Furthermore, since the closed space is formed by two separate and independent doors, there is a drawback that the installation space becomes large.

[Summary of the Invention] The present invention has been made in view of the above points, and includes a revolving door having a plurality of wings arranged radially from a central axis along a curved surface formed on the inner wall of an entrance/exit opening. It is set to rotate, and ID is determined by weight determination and card content determination within the closed space formed by this curved surface and a plurality of wings, and the rotation of the revolving door is controlled based on the results of this ID determination. The present invention proposes a traffic control door that has a simple door control mechanism and can reduce installation space by controlling traffic through an entrance and exit.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 1a, b, c,
d, will be explained based on FIGS. 2, 3, 4, 5, and 6. Fig. 1a is a front view of the traffic control door according to this embodiment, and Fig. 1b is A- of Fig. 1a.
A sectional view, Figure 1c is an installation diagram of the electromagnetic lock of the revolving door shown in Figure 1a, and Figure 1d is the B-B of Figure 1c.
A sectional view, Fig. 2 is an overall block diagram of this embodiment, Fig. 3 is a circuit diagram of the entrance (or exit) door control circuit, Fig. 4 is a block diagram of the ID discriminator, and Fig. 5 is a lock diagram. A circuit diagram of the control circuit and a circuit diagram of the traffic display circuit are shown in FIG.

In each of the above figures, the traffic control door according to this embodiment has an entry button 3 provided on the outside of the entrance/exit 2 of the specific monitoring area 1, an exit button 4 provided on the inside, and an inner wall surface of the opening of the entrance/exit 2. The wing 52, 52
A rotating door 5 is formed into a curved surface along a radius of rotation, and a plurality of wings 52, 52 are disposed on a central axis 51 so that the wings 52, 52 rotate along this curved surface, and the plurality of wings 52 are arranged on a central axis 51. , 52 and the inner wall of the opening 21, and an ID discrimination device 6 provided in the closed space 22 formed by the inner wall of the opening 21, and a door control device that controls the rotation of the revolving door 5 based on the discrimination result of the ID discrimination device 6. a lock control circuit 8 that locks or unlocks the revolving door 5 based on the output of the door control device 7; and a traffic display circuit 9 that displays the traffic status based on the output of the door control device 7. It is composed of:

The entry button 3 or exit button 4 allows a passerby to enter the closed space 22 by turning the revolving door 5 a quarter turn by pressing this button.

The revolving door 5 has a central shaft 51 whose upper and lower ends are pivotally supported, and four wings 52 which are arranged radially in four directions from the central shaft 51 and are formed by combining rod-shaped arms into a horizontal frame shape. 52, and a lock operating portion 53 attached to the upper end of the central shaft 51. The wing 52 is formed by providing rod-shaped arms in a stepped manner so that the revolving doors 5, 5 attached thereto do not come into contact with each other. Therefore, the plurality of revolving doors 5, 5 have respective wings 52, 52.
The cross section 21 intersects in a stepped manner and rotates along the curved surface of the opening wall surface, and the intersecting region O and the curved surface can narrow the width of the opening 21.

The lock operating portion 53 includes an inner electromagnetic lock 53 that prevents the center shaft 51 from rotating in the entry direction.
a, and an exit electromagnetic lock 53b that prevents the center shaft 51 from rotating in the exit direction.

The above-mentioned ID discriminating device 6 includes a weight discriminator 61 for discriminating the suitability of passing based on the weight of a passerby, a card discriminator serving as a pass suitability discriminator 62 for discriminating suitability for passing based on the card contents, and each discriminator 61 as a passerby. ，
62, and an AND circuit 63 that takes a logical product condition of the outputs of 62.

The weight discriminator 61 is attached to the floor within the closed space 22, and includes a pressure sensor 61a that measures the weight of a passerby, and the upper and lower limit weights of persons permitted to pass are registered and stored in advance. The pressure sensor memory 61b is configured to include a comparator 61c that compares the data of the pressure sensor memory 61b and the output of the pressure sensor 61a, and detects that the comparison result is within a permissible value. Ru.

The card discriminator 62 is connected to the closed space section 22.
A card reader 62a that is attached to the inner wall of the opening 21 and reads the card contents, and a card memory 62b that stores the card number of the person who is permitted to pass.
and a coincidence detector 62c that detects coincidence between the data in the card memory 62b and the reading result of the card reader 62a.

The door control device 7 includes an entry door control circuit 71 that controls the revolving door 5 regarding the entry direction when the entry button 3 is pressed, and an entry door control circuit 71 that controls the exit direction when the exit button 4 is pressed. and an exit door control circuit 72 that controls the revolving door 5.

The lock control circuit 8 receives an entry direction unlock signal S ₆
and an inner lock circuit 8 that sends an unlock signal _S8 to the inner electromagnetic lock 53a based on the door open signal _S2 .
1, an unlocking signal S8' is sent to the outer electromagnetic lock _53b based on the outgoing unlocking signal _S6 ' and the door opening signal _S2 .
and an outer lock circuit 82 that sends out signals to the external lock circuit 82. In addition, each of the above-mentioned inner and outer lock circuits 8
1 and 82 both stop sending out the release signals S ₈ and S ₈ ' when the door close signal S ₇ is input, and lock the revolving door 5.

The above-mentioned traffic display circuit 9 uses an OR circuit 91 to obtain a logical sum condition of the incoming direction use signal S ₅ ' and the outgoing direction use signal S ₅ of the door control device 7.
It is configured to light up the respective traffic indicator lights 92 and 93 at the entrance and exit.

Next, the operation of this embodiment will be explained in detail. first,
When a passerby enters the specified monitoring area 1, when the passerby presses the entry button 3 provided outside the entrance/exit 2, a button signal _S1 is sent out, and this button signal _S1
RS flip-flop 711 as a set signal
is input, and this is set state. The RS flip-flop 711 in the above set state is
By outputting the output signal SQ ₁ , timer 71
2 starts integration, causes the one-shot multivibrator (hereinafter referred to as OM) OM ₁ to output an output signal for 5 seconds and sends out the entry direction unlock signal S ₆ (as shown in Fig. 3), and outputs an output signal to the OR circuit 718. The incoming direction use signal _S5 ' is sent to light up the traffic indicator lights 92 and 93 at both the entrance and exit (6th
(shown in figure).

The entering direction unlocking signal _S6 is input to _OM7 of the lock control circuit 8 as shown in FIG. 5, and the _OM7 inputs the unlocking signal _S8 to the inner electromagnetic lock 53a, and is excited and pushes up the pin that had locked the revolving door 5, making it unlocked. The revolving door 5 in the unlocked state is pushed around by a passerby, and when the rotation becomes 1/8 rotation, that is,
When the bar 54 of the revolving door 5 rotates to the left, a rotation detection sensor 55 detects this and sends out a door open signal _S2 .

Note that if the passerby does not push the unlocked revolving door 5 around even after 5 seconds have passed since the timer 712 starts counting, and the rotation detection sensor 55 does not send out the door open signal _S2 , the OM ₆ , an output signal is sent out for 10 m seconds, and this output signal is input to the RS flip-flop 711 as a reset signal, thereby setting it in the reset state and returning to the initial state.

When the door open signal _S2 is sent out, the AND circuit 7
13 satisfies the AND condition, it is input as a set signal to the RS flip-flop 716,
At the same time, OM ₇ goes into the reset state and OM ₈ goes into the set state (as shown in FIG. 5).

When the OM ₇ is reset, the inner electromagnetic lock 53a is demagnetized and the pin is pushed down to lock. As a result, the revolving door 5 rotates 1/4 of a turn, and the passerby enters the closed space 22, and cannot rotate any further. When the OM ₈ shown in FIG. 5 is in the set state, the outer electromagnetic lock 53b is energized and the pin that was locking the revolving door 5 is pushed up to the unlocked state, and the rotating bar 54 is in the closed position of the electromagnetic lock 53b. When the door passes by, the rotation detection sensor 56 detects this and sends out a door close signal _S7 .

The door close signal _S7 is input to _OM8 , and by setting this to the reset state, the outer electromagnetic lock 5 is activated.
3b is demagnetized and the pin for locking the revolving door 5 is lowered and becomes locked.

The RS flip-flop 716 in the set state outputs an output signal SQ ₂ , which is a AND condition signal of the output signal SQ ₂ and the outputs of the pressure sensor 61a and the card reader 62a regarding the passerby in the closed space 22. A certain ID match signal _S3 is input to the AND circuit 714, and the RS flip-flop 717 is input to the AND circuit 714 on the condition that this logical product condition is satisfied.
A set signal is sent to the set state. this
The RS flip-flop 717 outputs an output signal SQ ₃ , and this output signal SQ ₃ is input to the OM ₂ , which outputs the output for 5 seconds and causes the entry direction unlock signal S ₆ to be sent again (as shown in FIG. 3). By causing the OM ₇ to output for 5 seconds, the inner electromagnetic lock 53a is energized, and the pin locking the revolving door 5 is pushed up inward to the unlocked state (as shown in FIG. 5). A passerby can exit the closed space 22 and enter the specific monitoring area 1 by pushing the unlocked revolving door 5 a further 1/4 turn.

When the revolving door 5 rotates 1/8 in the middle of a 1/4 rotation, the rotation detection sensor 55 detects the passage of the bar 54 and sends out a door open signal _S2 .
_S2 resets the OM ₇ , demagnetizes the inner electromagnetic lock 53a, and pushes down the pin that fixes the revolving door 5. Further, the door open signal _S2 is input to the AND circuit 720, and since it satisfies this logical product condition, the _OM3 is caused to send out an output signal for 10 seconds, and each RS flip-flop 711, 716,
717 is placed in a reset state. When these RS flip-flops 711, 716, and 717 enter the reset state, the output signals SQ ₁ , SQ ₂ , and SQ ₃ outputted from them respectively stop outputting and no longer satisfy the logical sum condition of the OR circuit 718. Therefore, the incoming direction use signal S ₅ ' is no longer sent out, and the traffic indicator lights 92 and 93 at the entrance and exit are turned off. Furthermore, the door opening signal _S2 causes the OM ₈ to be in the set state, thereby sending out an output signal for 5 seconds, energizing the outer electromagnetic lock 53b and pushing up the pin.

Next, when the revolving door 5 changes from 1/8 rotation to 1/4 rotation, the rotation detection sensor 56 detects the passage of the bar 54 and sends out a door close signal _S7 to reset the OM ₈ . As a result, the outer electromagnetic lock 53b is demagnetized, the pin is pushed down, and the revolving door 5 is locked outward and returned to its original state.

In addition, when a passerby is inside the closed space 22 and wants to return for some reason, or when a passerby is inside the closed space 22, or when the weight discriminator 61 and the card discriminator 62
Each output does not satisfy the AND condition and the ID match signal S ₃
When the passerby presses the return button 64, the return button signal _S4 is input from the return button 64 to the AND circuit 719. This AND circuit 719 receives the return button signal _S4 ,
the output signal SQ ₂ of the RS flip-flop 716;
The logical product condition is satisfied with the inverted output signal of the output signal SQ ₃ output from the RS flip-flop 717, and the output signal is sent to OM ₄ and OM ₅ .

OM ₅ , which has received this output signal, sends an outgoing unlock signal _S6 ' for 5 seconds, and then outputs the outgoing unlock signal S6'.
When S ₆ ' is input to OM ₇ , the outer electromagnetic lock 53
b is energized and the pin that locks the revolving door 5 in the exit direction is pushed up, allowing passersby who were inside the closed space 22 to rotate the revolving door 5 and return to the outside.

When the revolving door 5 rotates by 1/8, the rotation detection sensor 56 detects the rotation and sends out a door open signal _S2 , which resets the OM ₇ and demagnetizes the inner electromagnetic lock 53a. The revolving door 5 is locked inward again, and the OM ₈ is set to excite the outer electromagnetic lock 53b to unlock the revolving door 5 outward. When a passerby further rotates the revolving door 5 to 1/4 rotation, the rotation detection sensor 55 detects the passage of the bar 54 and sends out a door close signal _S7 . This door close signal
_S7 is input as a reset signal to _OM8 , and the outer electromagnetic lock 53b is demagnetized, so that the revolving door 5 is locked outward again and returned to its original state.

The above OM ₄ operates in the same way as the OM ₅ described above.
The second output signal is input to the AND circuit 715, and since the door open signal _S2 is also input at the same time, the AND circuit 715 satisfies the AND condition and sends out an output signal. By resetting 711, 716, 717, the entrance and exit traffic indicator lights 92, 93
will go out and return to the original state.

In the above description of the operation, the case where a passerby enters the specific surveillance area 1 from the outside has been explained, but the same procedure and operation are performed when the passerby goes outside. In addition, in the above explanation, Figure 1a
Although the case where the right revolving door 5 is used has been described, the same operation is performed even when the left revolving door 5 is used or both the left and right revolving doors 5, 5 are used.

In addition to the above embodiments, the present invention can also be implemented as follows.

[1] Revolving doors may be installed individually instead of in pairs.

[2] Areas A, I, and C in Figure 1 a were used for both the entry and exit directions, but for example, areas A, I, and U were used for the entry direction, and areas U, E, and A were used for the exit direction. You may use it.

[3] However, if area D is used, it is necessary to install an ID discriminator (discrimination device such as a card reader or pressure sensor) in this area. Also, in this case, although a large amount of door space is required, it is possible to freely select the door and pass through freely. .

[4] As for the structure of the revolving door, in addition to the horizontal bar-type wings shown in Figure 1a, wings of any structure such as plate-like or grid-like structures may be used.

[5] The number of wings of the revolving door may be any number other than four wings attached to the central axis.

[6] The revolving door may be configured to be divided into dedicated doors for entry and exit.

[7] A proximity switch such as a photoelectric device may be used instead of the on/off button.

[8] The system may be configured so that a visual or auditory display is provided each time a decision is made regarding permission to pass.

[9] The ID determination method is carried out by a weight discriminator and a passability discriminator, but the passability discriminator uses a numeric keypad, voice print, handprint, palm print, or voice print instead of a card discriminator consisting of a card reader. It may also be executed by using a face recognition device or the like.

[10] When there is a person in area A of the closed space, if there is also a person in area A, the presence of the person in area A is detected and the person in area A is directed to exit from area A. It may be configured to display a warning.

[11] The revolving door itself may be moved electrically.

[12] The wall surface in contact with the revolving door may also have a structure such as a bar or a lattice, or that portion may be formed integrally with the door.

[13] The traffic indicator light when the vehicle is passing may be any display such as ○, ×, "Incoming traffic" or "Exiting traffic", or may be configured to notify by voice such as an announcement.

[Effects of the Invention] As explained above, the present invention provides a rotating door having a plurality of wings arranged radially from a central axis so as to rotate along a curved surface formed within the wall surface of an opening of an entrance/exit. In the closed space formed by the plurality of wings, the ID of the passerby is determined by determining the weight of the passerby and the contents of the card, etc., and the rotation of the revolving door is performed based on the results of this ID determination. Since it is configured to control the passage of people through the entrance and exit, it is possible to reliably confirm by weight determination that there is only one person entering the closed space, so a single door and door control device are used to control the passage. It is possible to reliably prevent an outsider from intruding by taking advantage of a person who is permitted to do so, and the door control mechanism is simple and the overall structure can be easily constructed.
Furthermore, since a part of the revolving door fits into the curved surface formed on the wall surface of the opening, it also has the effect that the installation space can be kept small.

[Brief explanation of the drawing]

FIG. 1a is a front view of a traffic control door according to an embodiment of the present invention, FIG. 1b is a sectional view taken along line A-A in FIG. 1a,
Fig. 1c is an installation diagram of the electromagnetic lock of the revolving door shown in Fig. 1a, Fig. 1d is a sectional view taken along line BB in Fig. 1c, Fig. 2 is an overall block diagram of this embodiment, and Fig. Figure 3 is a circuit diagram of the entrance (or exit) door control circuit, Figure 4 is a block diagram of the ID discrimination device, Figure 5 is a circuit diagram of the lock control circuit, and Figure 6 is a circuit diagram of the traffic display circuit. shows. 1... Specific surveillance area, 2... Entrance/exit, 3... Entry button, 4... Exit button, 5... Revolving door, 6...
ID discrimination device, 7... Door control device, 8... Lock control circuit, 9... Traffic display circuit, 22... Closed space section, 51... Central axis, 52... Wing, 64
...Return button.

Claims (1)

[Scope of Claims] 1. A traffic control door provided at an entrance/exit of a specific monitoring area to control traffic at the entrance/exit, comprising: a revolving door having a plurality of wings arranged radially from a central axis; A weight discriminator that forms a curved surface on the inner wall of the opening of the entrance along the rotation radius of the wing, and determines whether or not a passerby can pass through the closed space formed by the curved surface and the plurality of wings based on the weight of the passerby. , comprising an ID discriminating device configured with a passing suitability discriminator for discriminating suitability of passage, and a door control device controlling the rotation of the revolving door based on the discrimination result of the ID discriminating device, A traffic control door characterized in that traffic through the entrance/exit is controlled by controlling rotation of the revolving door. 2. Claim 1, characterized in that a return button is provided in the closed space formed by the plurality of wings and the inner wall of the opening of the entrance/exit, and the door control device is brought into a released state by the return button. traffic control door.