SU1649581A1 - Check-room control device - Google Patents

Abstract

The invention relates to control devices and can be used, in particular, when storing individual items of customers in department stores. The purpose of the invention is to increase the reliability of storage of personal belongings in the storage chambers. The control unit of the storage chamber contains two encoders, two switches, two comparison units, two weight sensors, three memory elements, a trigger, two locking mechanisms. The storage chamber includes a cell, a door, a handle, a panel, a niche, and the front and back side keys of the storage chamber. 2 Il.

Description

The invention relates to control devices and can be used, in particular, when storing individual items of customers in department stores.

The purpose of the invention is to increase the reliability of storage of personal belongings in the storage chambers.

FIG. 1 is a functional block diagram of a storage chamber control unit; Fig. 2 is an external view of the storage chamber.

The control unit of the storage chamber contains the first and second encoders 1 and 2, the first and second switches 3 and 4, the first and second blocks of comparison 5 and 6, the first and second mass sensors 7 and 8, the first, second and third memory elements 9.10 and 11. trigger 12, the first and second locking mechanisms (locks) 13 and 14.

The control unit of the storage chamber operates as follows.

The storage chamber consists of a cell of 15 rectangular section, front door

16, made of transparent material, on which there is a handle 17 for opening (closing) the door 16. On the front panel 18 of the cell 15 there is a niche 19, on the bottom of which a key 20.1 is installed. Any other elements on the front of the cell 15 are missing. The rear part of the cell 15 has a similar design: the rear door is made of transparent material with a handle and a niche with the key 20.2 on the rear panel. Key 20 is associated with an encoder 1 (2), which can be made in the form of a transducer of mechanical movements of key 20 into electrical signals.

In the initial state, both locks of the storage chambers are locked and the switch 3 is turned on. Under the action of the mass of the object installed on the key 20.1, the first mass sensor 7, the latter changes its position (lowered) and affects the encoder 1, at the output of which a digital electrical signal is generated sootl

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the mass of the item mounted on the key 20.1. The signal enters through the switch 3 to the memory elements 9 and 10. Moreover, the switch 3 alternately supplies the input signal to the elements 9 and 10 of the memory at intervals of 2–3 s. If during this time the weight of the load does not change (which prevents the camera from tripping dynamically), the same digital signals will be recorded in the memory elements 9 and 10, corresponding to the exact weight of the item placed on the key 20.1. Comparison unit 5 compares two signals recorded in memory elements 9 and 10 and, if they are equal, at the output, a signal O appears, which unlocks the lock 13 of the front door 16 and goes to trigger 12, causing it switching. The trigger 12 is switched, and the signal 1 from the reference output of the latter turns off the switch 3, blocking the recording of signals in the memory element 10 when the key 20.1 is pressed again. and the signal About with the inverse output of the trigger 12 includes a switch 4.

After the items are placed in the storage chamber and removed from the niche 19 of the object, the front door 16 is slammed (closed by hand) and an arbitrary value of the signal from the encoder 1 will be recorded in the memory element 9 (for example, close to zero mass) . At the same time, the output of the control unit when the signals in elements 9 and 10 of the memory are unequal results in a signal 1, which locks the front door lock 13 13. Two equal signals 1 will come to the input of the trigger 12. In this case, it does not switch. The switched on switch 4 permits the recording of signals in a digital code from the encoder 2 to the memory element 11. In block 6 comparisons, the signals in memory elements 10 and 11 are compared.

If the key. 20.2 to install an object, the mass of which has already been recorded in a digital code in the memory element 10 when loading things into the storage chamber, then a similar signal will be recorded in the memory element 11. If these signals are equal, the output of block 6 compares the W signal O (and if these signals are unequal, signal 1), which unlocks the lock 14 of the rear door of the chamber, and this door can be opened (by means of a spring or by hand for the handle). At the same time, this signal from control unit 6 arrives at trigger 12 and switches it to its original position, which causes switch 3 to turn off. When switch 3 is turned off, signals from encoder 2 to memory element 11 will not be received. In order to prevent the possibility of opening the rear door by selecting the mass of the object by gently pressing the key 20.2, the switch 4 in the switched on state must give the signal of the encoder 2 to the memory element 11 with an interval of 2-three.

The device works as follows.

The buyer comes to the cell 15 from the front door 16. If the cell 15 is free (this can be determined through the transparent door 16), then the buyer in niche 10 on the key 20.1 puts any personal object (key, key ring, cigarettes, glasses, matches, watches, a pen, a coin or a set of coins, a notebook, etc.). After 2-3 seconds, the system will work according to the cycle described above and the lock 13 will open the front door 16. Next, the buyer installs his things in the cell 15 and slams the door 16.

After completing the purchases, the customer leaves the sales area of the store, walks up to his cell 15 from the back door and sets the same personal item to the key 20.2. After 2-3 seconds, the system will work according to the cycle described above and 14 will open the rear door. By picking up items, the customer releases cell 1 for reuse. While the cell is occupied with things, it cannot be opened from the front door 16, since switch 3 is disconnected. Therefore, even if a new customer installs his item on the 20.1 key, his weight will not be recorded until trigger 12 turns on switch 3, and this is possible only when the rear door is opened by the first customer.

Claims (1)

Claims A control device for a storage chamber comprising a first and second locking mechanisms, a trigger, characterized in that, in order to increase reliability, the first and second weight sensors, the first and second encoders, the first and second switches, the first, the second and third memory elements, the first and second comparison blocks, the outputs of the first and second weight sensors are connected to the inputs of the first and second encoders, respectively, the outputs of which are connected to the information inputs of the first and second switches, respectively -retarded, outputs of the first and second output connected to the last inputs of the first, second and third memory elements respectively, a first output and a first output of the second memory elements are connected to first and second inputs of the first comparator block, respectively, the output of which is connected to the input of the Trigger Setup and to the control input of the first locking mechanism, the second output of the second and the output of the third elements are given, the output of which is connected to the control input of the second locking mechanism and to the Reset trigger input, the direct and inverse outputs of which are connected to The data are connected to the first and second 5 control inputs of the first and second inputs of the second comparison unit, the respective switches. ,/five 16 17