SU1027736A1 - Device for checking wiring diagram - Google Patents

Abstract

A DEVICE FOR MONITORING INSTALLATION SCHEMES, containing a pulse generator, the first control input of which is connected to the start and start input of the device, the second control input with the overflow output of the input address counter, the output of the pulse generator is connected to the counting input of the output address counter, the overflow output of which connected to the counting input of the input address counter, the address output of the input address counter is connected to the address input of the input address switch and to the first address input of the output unit, the second address The second input is connected to the address output of the output address counter and to the address inputs of two polling switches, the output switch of the input address is connected to the inputs of the monitored wiring diagram and the standards block, the information outputs of the monitored wiring diagram and the standards block are connected to the input (the two inputs of two polling switches, information outputs of which are connected to the inputs of the coincidence circuit, the output of the coincidence circuit is connected to the control input of the output unit, g is different (that, in order to increase The device has a counter for forming the output address, the output of which is connected to the installation input of the output address counter, the counting input is connected to О ts9 by the output address counter overflow, and the installation input is c. master input device. H SO Od

Description

1 The invention relates to fiction technology and can be used to control the correctness of electrical installation connections. A device for controlling the installation is known, which contains a control unit; a switch; a storage unit; a test signal generation unit; a code comparison circuit; an indication unit 1. A disadvantage of this device is the need to compile a complex test program of verification that generally lengthens the control process. The closest to the proposed technical entity is a device containing a pulse generator, a comparison circuit, input address counter, output block, input address switch, reference storage unit, first and second interrogation switches, output address counter 2. The disadvantage of this device is low speed due to sequential polling of all monitored points, since the number of polling steps is determined by dependence, where A is the number of polling steps and n is the number of monitored points. I.Iel inventions - increase. Strodeystvi device. The goal is achieved by the fact that in a device containing a pulse generator, the first control input of which is connected to the device start input, the second control input is connected to the overflow output of the input address counter, the output of the pulse generator is connected to the counting input of the output address counter, the overflow output which is connected to the counting input of the counter i of the input address; the address output of the secondary address counter is connected to the address input of the input address switch and to the first address input of the output unit; the second whose incoming input is connected to the address output of the output address counter and to the address inputs of two polling switches, the output switch of the input address is connected to the inputs of the monitored wiring diagram and the set of standards, the information outputs of the monitored wiring diagram and the unit of standards are connected to the formation inputs of two polling switches, the information outputs 36 of which are connected to the inputs of the coincidence circuit, the output of the coincidence circuit is connected to the control input of the output unit, the correction counter is inputted and the output address, the output of which is connected to the installation input of the output address counter, the counting input is connected to the overflow output of the output address counter, and the installation input is connected to the device's input input. The drawing shows a block diagram of the device. The device contains a pulse generator 1, a 2 input address counter, an output address counter 3, an input address switch k, an output block 5, first 6 and second 7 interrogation switches, input 8 and output 9 of the control object TO, block 11 standards, comparison circuit 12, counter 13 output address adjustments. The device operates as follows. The number corresponding to the maximum number of checked points of the object is entered into the counter 13 from the device's input. When starting generator 1, the pulses arrive at the counting input of counter 3, at the installation input of which the number from counter 13 is sent. At the time the number supplied to the installation input is reached, counter 3 generates a pulse that goes to the counting input of counter 13 to reduce the number of contents in it per unit, on the counting input of the counter 2. In this case, the dependence (n-1) / 2 is realized, where A is the number of polling steps of the monitored points; - n - the number of controlled points. In accordance with the state of the counter 2, the switch 4 supplies the voltage to the corresponding points of the object 10 and the block 11. This voltage is fed to the inputs of the switches 6 and 7 from the outputs of the object 10 and the block 11. The switches 6 and 7 are controlled by the addresses from the output of the counter 3 If the electrical object under control 10 and block 11 are identical, the logical states at the outputs of the switches 6 and 7 are equivalent. Otherwise, the output of the circuit 12 generates a logical signal of the type of failure (open or false closure) and depending on the levels of logic potentials at the outputs of the switches 6 and 7. The addresses of the input and output points of the faulty ones are input to the input of block 5 synchronously with the logic signal | type of fault.

The entire installation checkout process is conducted until counter 2 overflows, which produces a stop signal to generator 1.

Thus, the proposed device provides an increase in test speed of 2 p / p - 1 time without spending time on the preparation of a test test program.

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Claims (1)

DEVICE FOR MONITORING CIRCUIT DIAGRAMS, containing a pulse generator, the first control input of which is connected to the input of the start-up device, the second control input - with the output of the counter overflow of the input address, the output of the pulse generator is connected to the counting input of the counter of the output address, the overflow output of which is connected to the counter input of the input address counter, the address output of the input address counter is connected to the address input of the input address switch and to the first address input of the output unit, the second address input which is connected to the address output of the output address counter and to the address inputs of the two polling switches, the output of the input address switch is connected to the inputs of the monitored wiring diagram and the reference block, the information outputs of the monitored wiring diagram and the reference block are connected to the information inputs of the two polling switches, information the outputs of which are connected to the inputs of the matching circuit, the output of the matching circuit is connected to the control input of the output unit, characterized in that, in order to increase the speed Ia, the apparatus corrections introduced counter generating an output address with an output connected with the input of the counter output adjusting> Nogo address .schetny input connected to the overflow output of the counter output address, and the installation entrance. master input device. >