SU513362A1 - Device for interfacing a time code generator with a computer - Google Patents

Description

(54) DEVICE FOR TIME STRESSING WITH COMPUTER FORMATOR CODE

The purpose of the invention is to improve the reliability of the device.

This approach is achieved by introducing two units of asynchronous transmission into the proposed device, the first control inputs of which are connected to the second control input of the device, the second control inputs are connected respectively to the fourth and 5th outputs of the control unit, information inputs with the corresponding generator outputs pulses. The information outputs of the asynchronous transfer units are connected respectively to the information inputs of the astronomical time counter and the operating time counter, the control outputs are respectively to the fourth and J 5 th inputs of the switch.

In addition, in the device, each asynchronous transfer unit contains delay elements, keys, driver, and triggers. The output of the first trigger is connected to the first input of the first key, the second input of which is connected to the first control input of the block and through the first delay element to the first input of the second key, the second and third inputs of which are connected respectively to the outputs of the second trigger and driver no input to the first trigger. The output of the first key is connected to the control output of the block and through the second delay element with zero inputs, the first and second trggeroa. The information input of the block is connected to the input of the driver and through the third delay element to the information output of the block.

This reduces the likelihood of failures and thereby increases the reliability of the device.

Fig, 1 shows a diagram of the device; FIG. 2 is a diagram of an asynchronous transfer unit.

The device contains a pulse generator 1, an asynchronous transfer unit 2, an operating time counter 3, an astronomical time counter 4, a switch 5, a shift register 6, a control block 7, an indicator 8 and input 9-11 and output channels 12 of the device.

Block 2 contains a key 13, a delay element 14, triggers 15, 16, a driver 17, a delay element 18, a key 19 and a delay element 2 O,

The operation mode of the device is set by the computer through channel 9 of the control unit 7. In the case when there is no access to the device, the pulses from generator 1 are transmitted through blocks 2 of asynchronous transmission to the inputs of astronomical counters 4 and operational 3 times with a constant small counter content 4 from the output of that indus tass 8 ; For the census, the astronomical time of the IB computer to the computer masses the corresponding signal at the blackout 7 control, which is sent to the control input of the first side 2 of the asynchronous transfer of the census command.

 In the process of operation, it is not ximo from re} kfkia device operation on synchronization ““ i- block 2 input after 10 posul T clock pulses from a computer.

At the same time, the information input & 1 2 receives counting pulses from the output of the pulse generator, which passed through the delay element 18, is fed to the input of count 4,

As the census impulse arrives from the control unit 7 on the control input of the unit 2 of the transmission unit, the trigger 16 of this unit is set in the image, thus, one of the resolution potentials on the pc.ch 13, Vt. the resolving potential forms the shaper 17, the prohibition on the output of which is only immediately after the counting engine from the pulse generator 1. The prohibition is imposed only for the time required for the information to be recorded in the counter to its j echo.

Thus, one short-circuit of these pulses: the chronration, which enters block 2 via channel 10 from a computer, passes through the element; delay 20, sets trigger 16 to a single cocTOHHJfe and thus opens key 19 for the next sync pulse that reads information from the counter .

The purpose of the delay element 20 is to exclude the possibility of a census in the extreme case - coincidence of resolution on fronts and census from an unsettled trigger 15. Thus, block 2 of asynchronous transfer allows exchange between two asynchronous devices without blocking .F. memorization of information possible with this lottery.

As the impulse appears on the control v-stroke of block 2, it follows the delay delay element 14, sets the triggers 15 and 16 to zero ssss, and thus excludes the passage of the following sync pulses to the output, t, e, returns the block 2B initial condition.

9

Claims (2)

The control pulse of unit 2 is fed to the switch 5, it overwrites the contents of counter 4 into shift register 6, which is preset to 0 by the signal from control unit 7. After the copying .1 of the information into register 6, shift pulses start to arrive at it ;; two people are sent from the computer via control unit 7 and the time code is transmitted from the {register 6 of the computer to the computer 12. When transmitting the operating time in a computer, the device operates similarly, with the only difference that the control unit 7 outputs a control pulse to the input of the second 1b-by-2 2 asynchronous 110th transmission. To enter the operating time code from the computer to the control unit 7, the channel 9 sends an appropriate command, I through which the control unit 7 generates the inhibitory potential to the input of the pulse generator 1, thus terminating the high output pulses from the second output and the generator. At the same time, in the control unit 7, a pulse is generated to be set in the operating time counter, and then the shift pulses the time code along the cannap 11 is fed from the computer to the re; shift 6. Then, the output from the control unit to the control input of switch 5 receives a signal, information from the reg; the histor is stored in counter 3. Claim 1, A device for interfacing a computer with a computer time code containing a pulse generator, the input of which is connected to the first output of the unit control, the second output of which is connected to the control input of the shift register connected bilaterally to the switch and connected to the input and output respectively to the input and output of the device, astronomical time counters and operating time, the outputs of which are connected respectively to the first and second inputs of the switch, the third input of which is connected to the third output of the control unit, the input of which is connected to the first control input of the device, the output of the switch is connected to the input of the operating time counter, the indicator connected to the output astronomical time counter, characterized in that, in order to increase the reliability of operation, two blocks of asynchronous transmission are introduced into it, the control inputs of which are connected to the second control unit equalizing the input of the device, the second - to evenBeBTTOKfy and the fifth outputs of the control unit, respectively, information inputs to the corresponding outputs of the generator; pulses; the information outputs of the asynchronous transfer unit | are connected respectively to the information inputs of the astronomical time counter and operational time counter, the control outputs (respectively, to the fourth and the fifth input | of the switchboard). 2. A device according to claim 1, wherein the asynchronous transfer unit contains delay elements, keys, driver, and triggers; the output of the first trigger is connected to the first input of the first key, the second input of which is connected to the first control input of the block and through the first delay element to the first input of the second key, the second and third inputs of which are connected respectively to the outputs IBToporo of the trigger and driver, the output is connected to the single input first trigger; the output of the first key is connected to the control output of the block and through the second delay element with zero inputs of the first and second triggers; the information input of the block is connected to the input of the imager and through the third delay element to the information output of the block. 12 If