SU405173A1 - E405173M. CL. H 03k 13 / 02UDK 681.325.3 (088.8) - Google Patents

Description

one

The invention relates to the field of automation and computing equipment and is intended for use in display and adjustment systems by prediction parameters.

There are known discrete measuring devices containing an analog-to-digital converter, one input of which is connected to the sensor of the measured parameter, and the second to the clock generator.

However, these devices have a limited scope due to the lack of their ability to indicate or introduce into the control signal a parameter value predicted for a certain period of time, as well as its measurement speed.

The proposed device is distinguished by the fact that a shift register with the number of bits equal to the number of measurement cycles is connected to each digital output of the analog-digital converter, and the control inputs of the registers are connected to the output of the clock generator, and their single-digit output outputs are combined and connected to one output terminal of the device.

This is a field of issue for part of the region of the 1st STPL.

Pa drawing shows a functional diagram of a discrete measuring device. And sensor 1 of the parameter being measured

connected to analog-to-digital converter 2, which has digital outputs according to the number of conversion bits. Shift registers 3 are connected to the output of each of the bits of the converter by the inputs of the first bits.

The clock generator of 4 measurement cycles is connected to the converter 2 and the clock inputs of the shift registers 5. The number of register bits equals the number of measurement cycles during which information about the value of the measured parameter must be stored and updated.

The outputs of the simultaneous bits of the registers form code groups corresponding to the measurement cycles and are connected to the output terminals 5. The group of outputs of the first bits of the registers corresponds to the last, / -th measurement cycle, the group of outputs of the second bits - / -1th measurement cycle, and etc.

The typical oldness of the outputs in each group corresponds to the precedence of the bits of the converter to which the registers are connected.

The device works as follows.

At the next clocking pulse of the generator 4, the new cycle of converting the sensor / parameter to the code and a burst of the previous measured value is performed in the first bits of the registers 3.

In the established mode of operation, the codes of the corresponding bits of the converter are recorded in all bits of the registers, for the next i-th - several previous measurement cycles in accordance with the specified order.

When the register size is equal to p, E, every gth measurement cycle receives information about the gaml measurement cycle. The information on the (/ - -f 1) -th cycle is overwritten to the last bits of the registers. In this way, the congruence of the code outputs, connected to the terminals 5, is ensured in the order of measurement cycles from the / -th to (t - "+. I) -ro.

subject matter

The discrete measuring device contains; its analog-to-digital converter, one input of which is connected to the sensor of the measured parameter, and the second to the clock geyerator, different from the fact that, in order to expand the area of the device, to each digital output of the analog-digital converter a shift register with a number of bits equal to the number of measurement cycles, the control inputs of the registers are connected to the output of the clock generator, and their single-digit discharge outputs are combined and connected to the output th terminal device.