SU540795A1 - Digital device for automatic control of a lift installation - Google Patents

Description

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The invention relates to lifts, in connection with devices for their automatic control.

Electronic devices for determining the depth and subsequent control of a lifting installation are known, based on the use of magnetic recording, including annular decade counters on thyrotrons, an electromagnetic relay in the counter circuits for setting speed programs as a function of path 1.

The closest technical solution to the essence and effect achieved by this invention is a digital automatic device for controlling a lifting installation, which contains a source of information in the form of, for example, a rope with magnetic tags, a playback unit, a reversible binary counter, a pulse frequency recording unit, an information transfer unit , setter of numbers and programs, the comparison unit associated with the drive control unit 2.

The aim of the invention is to clarify the accuracy of the control of the lifting installation.

This is achieved by the fact that the proposed device is equipped with an information conversion unit, one input of which is connected to the setter of numbers, another input through the information source and the information transmission unit is connected to the playback unit, while

One of the outputs of the information conversion unit is connected to the program setting unit, and the other output is connected to the frequency recording unit of pulses.

The drawing shows a diagram of the proposed digital device.

It contains information source 1, playback unit 2, reversible binary counter 3, pulse frequency recording unit 4 and information transfer unit 5, unit number 6 and program setter 7, comparison unit 8 connected with drive control unit 9 connected platform 11 installation. The information source is made of rope 12 with magnetic labels 13. The device is equipped with an information converting unit 14, one input of which is connected to pre-gauge 6, and the other input through information source 1 and transfer unit 5

information is connected to block 2 playback. One of the outputs of the information conversion unit is connected to the setting unit 7, and the other output is connected to the unit 4 of the frequency recording of pulses.

Claims (2)

The device works as follows. The drive of the lifting installation is switched on and a signal is sent from the number generator with a signal corresponding to the destination address of the lifting platform of the installation. 3 From the setter of numbers, the signal arrives at the information conversion unit, from where, as a binary number, it goes to the setter of programs. Two signals simultaneously arrive from the program master: a binary number-5 howl — into a number comparison unit and a clock one — into a reversible binary counter. When a signal arrives at a reversible binary counter, information in the form of a binary code corresponding to the number determined by the location of the lifting platform is also fed into the number comparison unit. Based on a comparison of two values from the number comparison unit, a signal B15 is received from the control unit, which determines the direction of rotation of the drive. The movement of the lifting platform is accompanied by the fixation of the magnetic tags of the rope by the playback unit, the signals from which go to the information transmission unit. Successively received constant information and the specified block is fed to the block of the reversible binary counter and then in the form of a binary stroke to the block of comparison of chi-25 villages. When the numbers in this block coincide, a command is issued — a signal to the drive control unit and then to the drive, at the beginning of the deceleration of the lifting platform. After the start of deceleration, the signal for resetting information is sent to the reversible binary counter block from the pulse registration unit. At the same time, the lifting platform continues to move at a reduced speed for some time as well. Re-35 magnetic marks are migrated and fed to the information converting unit and then to the pulse frequency recording unit. When a predetermined number of pulses is reached from the frequency registration block, the drive control unit receives a braking signal, from which two signals arrive: on the drive and in the program master block to transfer information about the location of the lifting platform to a reversible binary counter, Formula of the Invention a lifting device containing a source of information in the form of, for example, a rope with magnetic tags, a playback unit, a reversible binary counter, a frequency p block pulse timing, information transmission unit, unit of numbers and programs, comparison unit associated with the drive control unit, characterized in that, in order to improve control accuracy, the device is equipped with an information conversion unit, one input of which is connected to the number setting unit, another input the information source and the information transmission unit are connected to the playback unit, wherein one of the outputs of the information conversion unit is connected to the program setting unit and the other output to the impulse frequency recording unit all Sources of information taken into account in the examination: Aut. St. №133993, cl. In 66В 3/02, 1960. 2. Auth. St. No. 217618, cl. B 66B 1/34, 1967.