SU977347A1 - Apparatus for automatic addressing of a hoist - Google Patents

Description

The invention relates to elevator construction and can be used to automate various lifts.

A device is known for automatic control of a lift, comprising a selective switch with sliding contacts and groups of fixed contacts connected by successive diode chains (1).

The disadvantage of this device is that it can be implemented only on contact elements, for example, on step finders, the reliability indicators of which do not meet the requirements of modern control systems.

Closest to the proposed technical essence is a device for automatic addressing of the lift, containing a block for monitoring the position of the lift, blocks for determining the direction of its movement and call, the number of which is equal to the number of floors and the outputs of the latter of which are connected to one of the inputs of memory elements / other inputs of which are connected call exchanges to the bus, and the outputs to one of the inputs of the direction determination blocks, the other inputs of which are connected to the corresponding outputs of the control unit g position lift, and the first, second and third outputs - to issue command input nodes respectively Up, Stop and 'Down [2]. ^{1 ;}

However, the block of determining the direction of motion in the known device is made on memory elements in combination with logic elements, which causes its complexity. The addition block circuit is also complicated, since it is based on the use of ¹³ memory elements. For these reasons, the reliability of the device is not high enough.

The purpose of the invention is to increase the 2Q reliability.

^ζυ This goal is achieved by the fact that the device is equipped with a unit for analyzing the position of the elevator relative to the floors, made up of two chains each formed by 25 OR connected by one of the inputs, the number of which in each chain is equal to the number of floors and the second inputs of each of which are connected to the corresponding this' O. floor with the output of the control unit for positioning the elevator, and each of the blocks for determining the direction of movement is made on three AND elements, the outputs of which are the outputs of the block, one of the inputs is combined and is the first input of the block, the second input of which is the other input of one of the AND elements , other inputs of the second and third of which, being the third and fourth inputs of the block, are connected to the outputs of the OR elements, respectively, of one and the other chains of the block analyzing the position of the elevator relative to the floors ,.

Figure 1 shows a part of the circuit of the proposed device and a functional diagram of a block for analyzing the position of the elevator relative to floors; 20 • The device (Fig. 1) contains a block ° for monitoring the position of the elevator (floor sensors), the outputs of which are connected to the inputs of the block 2 of the elevator position relative to the floors, 25 made on two chains formed by series-connected elements 3 and 4 OR, blocks 5 call (figure 2), the outputs of which are connected to the first inputs of the used memory elements, the second inputs of which are connected to the bus Cancel calls, and the outputs to the first inputs of the floor blocks 7. determine the direction of movement made on three elements 8-10 AND, you- 35 moves which soy Dinen with the outputs of the corresponding elements 11 OR.

The device operates as follows.

Unit 1 for monitoring the position of the lift indicates the actual location of the lift. At every moment in time, there is a signal at that output. block 1, which corresponds to the floor of the lift.

This signal is supplied to the first inputs of block 2, which are one of the inputs of the corresponding element 3 OR of the first chain and element 4 OR of the second chain.

As a result of this, in the first chain 50 there is a signal at the outputs of all those OR elements that relate to the floor located above the corresponding output of block 1 of the floor. Similarly, in the second chain there are 55 signals at the outputs of all those 4 OR elements that correspond to the floor located below the corresponding output of block 1 of the floor.

When exposed to any of the 60 call blocks 5, the first is set. 1st, the state of the corresponding memory element b.

The signal from the output of this element is supplied to the first inputs of the corresponding group of elements 8-10 constituting block 7.

If the call block number is less than the floor number on which the cabin is located, then there is a signal at the second input of element 8 AND from the output of the corresponding element. 4 OR. Element 8 of this floor is triggered and through the first element OR forms a signal Up.

Similarly, a Down signal is generated. When the numbers of block 5 and floor coincide, element 9 AND is triggered, which forms the Stop command. The Call Cancellation command is formed on the last floor when the Stop command occurs.

* Ϊ

The advantages of the device are the simplicity of the circuit solution, profitability, a high degree of unification of the floor nodes of the circuit and increased reliability.

Claims (2)

1. USSR author's certificate 650933, cl. B 66 B 1/40, 1977. 2.Patent of France No. 2145033, cl. In 66 1/00, 1973 (prototype).