SU549822A1 - Device for controlling checkpoint - Google Patents

Description

verification of the information code, and its output - with the input of the second element I, the other inputs of which are connected to the corresponding outputs of the information code verification block, and the output - to the inputs of information reading permission blocks. The first inputs of the two other elements AND are connected to the corresponding outputs of the control unit, the second inputs to the outputs of the motion control sensors, and the outputs through the second element OR to the input of the recovery pulse generator, the output of which is connected to the additional input of the program block connected to the second output of the first input an element for fixing a violation of the mode connected by the second input to the output of the control unit, and an output to the second input of the first element OR.

FIG. Figure 1 shows the block diagram of the proposed device for controlling the transmission; in fig. 2 - the device in general.

The device contains information input blocks 1 and 2, information code 3 check block, two information read resolution blocks 4 and 5, control block 6, backstop blocking elements 7, 8, program block 9, signaling blocks "input to objects 10," output from object 11, elements AND 12-15, elements OR 16, 17, motion control sensors 18, 19, locking disk 20 fixedly mounted on a cross, action elements 21-24 interacting with motion control sensors, a four-fold crossbar 25 blocking the passage between racks, shaped a recovery pulse 26, an alarm 27, a memory element 28, a mode violation fixation element 29, a control unit 30, a display of light indicators 31-35, an actuator control unit 36, an actuator 37, and a fence post 38.

The device works as follows.

When the supply voltage is applied, the device is reset, in which the triggers 39, 40 of the control unit 6, the backstop blocking elements 7, 8, the memory element 28 and the mode violation latch member 29 are set to the zero state. In this case, the latch of the actuator 37 does not engage with the locking disc 20, and the light indicators 31, 32 are hot with red light, which means - “present a pass.

When entering the enterprise, it is necessary to insert a pass into the slot 41 of the information input unit 1 and bring it to a fixed position. As a result, the sensitive element 42 is activated, under the action of which the information read permission block 4 generates an information read enable signal on the read head 43 and a prohibition signal on the read information enable block 5 in order to exclude read information from the read head 44. From the head 43, read information passes, is supplied to the assemblies 45 to 45 tons of the verification code of information code 3, from which information is sent to the elements through the switches of the information code 46i 46 and information And 12-13. If the information code read from the pass coincides with the code set by the switches 46i-46p, then at the output of the element 13 there appears a potential, under the action of which the blocking node produces a signal that translates the trigger 39 into a single state. At the same time, the potential at its output 47 prepares for operation

element 14 and puts into operation the time delay node 48, and the potential at output 49 of the trigger closes element 50 and switches the indicator light of the alarm unit 10 from the board “pass

31 on the board, “go 33. When moving, the employee turns the crosspiece 25, and with it the locking disk 20 and the elements of influence -21-24 in the direction indicated by the arrow L. When element 22 enters the zone

The sensor 18 influences the latter and triggers the blocking element 7 into a single state, in which the potential at its output closes the AND 51 element. This eliminates the triggering element of the violation mode 29 when the employee continues to turn the crossbar.

When the sensor 19 is subsequently triggered, the signal from its output opens the preparatory element “AND 14. On the falling edge

This signal triggers the recovery pulse shaper 26 and through the element "OR 52" resets the triggers of the control unit 6 and the blocking elements 7, 8. As a result, the time delay node 48 stops counting the time, the board 33 goes out, and the board again lights up .

After that, I am asked to check the next pass inserted into one of the blocks

input information.

When exiting the enterprise, it is necessary to insert a skip into the information input unit 2, containing the sensitive element 53. In this way, the information read resolution block 5 works, which generates an information read enable signal on the read head 44 and a ban signal on the information read permission block 4. How and at the entrance read with

the information pass is sent to the information code verification block 3, and the results of the verification through the element "And 13 to the information reading permission block 5. If the test results are positive,

this information reading permission block generates a signal that translates the trigger 40 into a single state. As a result, the potential at its output 54 prepares the element “And 15 and puts into the reference mode

time node 48, and the potential at

Exit 55 closes And 51 and turns on the board 34 instead of the board 32 of the signaling unit 11. When exiting the plant, the cross 25 rotates in the direction of arrow B, so the sensors operate in the reverse order. When the sensor 19 is triggered, the blocking element 8 is transferred to one state, and the potential at its output closes the element 50, allowing the sensor 18 to reset. The signal from the sensor 18 passes through the preparation element AND 15, the element OR 16 to the recovery pulse generator 26, which through the OR element 52, it clears the triggers of the control unit 6 and the blocking elements 7, 8. As a result, the exposure unit 48 stops timing and the alarm unit 11 turns off the display

34 "Go and light the scoreboard 32" Present a pass.

When an attempt is made to enter the enterprise (exit the enterprise) without presenting a pass or a false pass, an alarm appears on the light indicator 35 and the acoustic signal produced by the detector 27. At this, the actuator 37 is activated and inserts a retainer into the slot of the retaining disk. 20, eliminating the possibility of rotation of the cross, blocking the passage between the posts. This is done as follows. When the cross is rotated in any direction, one of the elements 22, 24 enters the zone of influence on the motion control sensors 18, 19, when triggered, the resolving potential is supplied to one of the elements I 50-51, prepared to be triggered by the other inputs by the control unit 6 triggers and locking elements 7, 8 in the zero state. Depending on the direction of movement, one of the elements AND 50, 51 is triggered and through the element OR 56 it sets in one state the fixation violation element 29, which through the element OR 17 converts the sound signal memory 28 into one state and acts on the control node the actuator 36. This will trigger the alarm 27, the indicator light

35 and an actuator 37, which is turned on from the remote control unit 30 by returning elements 28 and 29 to the zero state. If the employee on a given pass received permission to pass through the turnstile, but refused to pass, then the device at an appropriate time interval , determined by timing node 48, automatically returns to its original state. When the passage through the turnstile is denied or the passage is allowed without passing a pass from the control unit 30 through the OR element 17, the corresponding command is sent to the control unit for the actuator 36 and the alarm units 10, I.

The actuation of the actuator 37 and the alarm signaling by the audible alarm 27 and the light indication element 35 are performed in the same way, and if a passage was given permission to enter (exit), and an attempt is made to exit from the enterprise (entrance to ). In this case, an alarm is generated by one of the And 50, 51 schemes, depending on the direction of movement.

So, for example, after submitting a pass to the right of entry, a trigger is triggered.

39i and closes the element And 50 potential that appeared at its output 49, which gives the right

employee go to the enterprise. If at the same time there is an attempt to exit from the plant, i.e., the rotation of the cross in the direction of arrow B, then sensor 19 is triggered, the signal from which passes through element 51, prepared to find the zero state with a trigger

40 and locking element 7. As a result, the passage is blocked.

Claims (2)

1.Avt. swith USSR № 264832, cl. G 07С 9/00 dated 04.17.68 (equivalent). 2. Avt .. svid. USSR № 399890, cl. G 07С 9/00 from 01.11.71 (prototype).