SU903926A1 - Examination post control device - Google Patents

Description

The invention relates to automation devices for checkpoint systems and can be used to control the passage of people into internal objects of enterprises or premises.

A device for controlling a checkpoint is known, comprising a token receiver, a block of counter blocks of tokens, a weight area, sensors for the presence of tokens, a position sensor of a turntable and an alarm signaling unit 1.

A disadvantage of the known device is low reliability.

The closest in technical essence to the present invention is a control unit for controlling the Crosspoint containing sensors for positioning the door, a sensor for the presence of a token, the output of which through the first element is NOT connected to the first input of the first element I, the second input of which is connected to the output of the memory element, additional elements , the OR element, the alarm unit, the delay element, the second and third elements are NOT, the outputs of which are connected to the first inputs of the second and third elements AND, and the control unit of the token, the output of which connected to the first input of the fourth element And 2.

The known device operates as follows.

A person enters the turntable sector, turns it through 90 °. At the same time, it loads the weighting area inside the gearbox and inserts the token into the token receiver In the case of a 10 and even after removing the token, the electromagnets of the locking mechanism are turned off. After that, the person turns the sector and passes the checkpoint.

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Such a device allows controlling the token only when the weighing platform is loaded and the spinner is fixed. This ensures that the passage is allowed when there is a corresponding token, eliminates leaving it in the control device, and allows for the arrest of the intruder.

However, along with the above-mentioned attributes, the known device allows for the possibility of two or more people with the same dimensions passing through one counter with the corresponding dimensions provided they are simultaneously located in the turntable sector, since

A weighing pad records only the presence of people, but does not control their number.

The purpose of the invention is to increase the reliability of the device by allowing control of the number of people.

The goal is achieved by the fact that the device for controlling a checkpoint containing door position sensors, a sensor for the presence of a token, the output of which through the first element is NOT connected to the first input of the first element I, the second input of which is connected to the output of the memory element, actuators the OR element, the signaling unit, the delay element, the second and third elements are NOT, the outputs of which are connected to the first inputs of the second and third elements AND and the control unit of the token, the output of which is connected to the first input the first and second control units, a capacitive sensor and an exit button, the output of which is connected to the second input of the second element And, the output of the capacitive sensor is connected to the inputs of the first and second control units, the output of the latter is connected with the first input of the alarm unit and with the input of the third element NOT, the output of the First control unit is connected to the inputs of the second element NO, the delay element and to the second input of the third element I., whose output is connected to the second The input of the fourth element AND, the output of which is connected to the first input of the element OR whose output is connected to the first input of the memory element, the output of the first door position sensor is connected to the second input of the alarm unit and through the fourth element NOT to the third input of the second and fourth elements AND, the output of the second element AND is connected to the second input of the OR element, the output of the second door position sensor is connected via the initial installation unit to the second input of the memory element and directly to the third input of the alarm unit ii., the fourth input of which is connected to the output of the delay element, the output of the first element I is connected to the inputs of the first and second actuating elements.

FIG. 1 shows a checkpoint with a control device; in fig. 2 shows section A-A in FIG. one; in fig. 3 - functional device diagram.

The checkpoint (CAT) is formed by a fence of 1 m 2, door 3 of the fence and door 4 of the room, electrodes 5 and b of the capacitive sensor 7 are built in elements 1 - 3 and the floor of the check point (not shown).

A person passing through the checkpoint is located for some time in the zone of control of the capacitive sensor 7, which is formed by the system of electrodes 5 and b.

The open and closed positions of the two | 3 fences are monitored by the first door position sensor 8, and the fourth room is controlled by the second door position sensor 9. The door 3 is blocked by an electromagnet 10, and

0 15 20 25 doors 4 electromagnet 11. Inside the checkpoint there is a token control unit 12 in which there is an opening for inserting the coded token.

The device to control. The PPC contains the fourth element NOT 13, the second and third elements NOT 14 and 15, the first element NOT 16, the third and fourth elements AND 17 and 18, the second and first elements 19 and 20, the element OR 21, the memory element 22, block 23 of the initial installations, the first and second blocks 24 and 25 of the control, the sensor 26 for the presence of the token, the first and second actuators 27 and 28, the exit button 29, the signaling block 30, the delay element 31.

The first control unit 24 controls the presence of a person in the control zone. The second control unit 25 controls the number of people in the control zone. Control of the number of people in the checkpoint is carried out only when entering the premises.

The device for controlling the account 35 by the checkpoint operates as follows.

A person enters the checkpoint from the door 3 of the fence. After closing the door, enters the coded token in the block 12 control tokens. The appearance in the interelectrode space of a capacitive sensor 7 of a conducting body (human) causes a change in the total electrical capacitance between the electrodes 5 and b. The increment of the electrical capacitance monitors 5 50 55 60 65 with blocks 24 and 25 of the control, where it is compared with the values of the installation levels, which determine the threshold of operation of these blocks and are set taking into account the anthropometric data of people who have the right of passage. The installation level. The first control unit 24 provides a signal to appear in the presence of one or more people in the control zone. The setting level of the second control unit 25 provides for the appearance of a signal unit when two or more people are present in the transaxle. The signal unit output at the output of the first control unit 24 is fed to the input of the delay element 31, as well as to the input of the third element AND 17. The time delay of the delay element 31 sets the time of the person's presence in the transaxle. At the end

The signal unit 1 is supplied to the input of the signaling unit 30 by a delay element 31, which ensures that the alarm is turned on: alarm. The presence of the unit signal at the second input of the third element AND 17 provides the implementation of operation AND and the effect on the second input of the fourth element: AND 18 by the signal unit. Simultaneously, the control of the token. The code correspondence ensures that the unit sends a signal to the unit 12, which controls the token to the input of the fourth element I 18, and the third input contains the unit of the inverse signal of the first sensor, the 8th position of the door. Element And 18 implements the operation AND and the output signal unit enters the input of the memory element 22 through the element OR 21. The trigger activates and acts with the unit signal on the second input of the first element AND 20. The first input receives the unit unit after removing the token from the token control unit 12 and triggering the presence sensor 26. The operation is performed And, and from the output of the first element And 20, the signal unit enters the inputs of the actuators 27 and 28, the electromagnets 10 and 11 are turned on. The door 3 of the fence is locked and the door lock 4 of the room is removed. A person opens the door 4 of the room and enters the room .. The door 4 is closed and acts on the second sensor 9 of the door position. The signal of sensor 9 through the setup block 23 sets the memory element 22 to the zero state. The electromagnets 10 and 11 are de-energized, the gearbox is ready for the next person to pass.

When two or more people attempt to simultaneously pass through a checkpoint, an increment in the electrical capacitance triggers both blocks 25 and 24 of the control. The signal of the unit of the second control unit 25 is supplied through an inverter to the second input of the third element 17. When zero is detected at the input of the third element, AND 17, AND operation is not realized. At the first input of the fourth element And 18 there is a signal zero. Operation And is not executed. Memory element 22, actuators 27 and 28 remain in their initial state, electromagnets are not included. Door 4 of the room remains blocked passage is impossible. The signal unit of the second control unit 25 provides the activation of the alarm signaling of the alarm unit 30.

Exit from the room through the checkpoint can only be carried out in the absence of a person in the control zone of the capacitive sensor 7 and with the fencing door closed. Inverse signals of the first sensor 8 position of the door

and the first control unit 24 prepare the second element AND 19 to perform the operation and. To exit the premises, press the exit button 29. If there is a unit at the inputs of the second element, And 19, a unit appears at the output. Through the OR 21 element, it is fed to the memory element 22, which stores this signal.

Q At the inputs of the first element and 20 there is one. From the output of the first element I 20, the signal is fed to the input of the executive elements 27 and 28. The electromagnet 10 blocks the door 3 of the fence, and the electromagnet

 11 releases the room door 4 from being blocked to enter the checkpoint from the room. A person enters the checkpoint, closes the door 4. The memory element 22 is reset.

0 by the signal of the second sensor 9 position of the door. Electromagnets de-energize. Through the door of the 3 fencing, a person exits the checkpoint.

The proposed device for controlling the checkpoint eliminates the possibility of two or more people entering the premises simultaneously on a single coded token, allowing it to be increased by

0 reliability of PPC. The device can be used to automate transmissions, to control access to passenger transport systems, to installations with particularly strict safety regulations, and so on.

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Claims (2)

1. Author's certificate of the USSR 266411, cl. G 07 C 9/02, 1966. 2. USSR author's certificate number 561987, cl. G 07 C 9/02, 1975 (prototype). //. : ha ck: W 4ag. but / D FIG B