RU2279704C1 - Device for remote controlling of parameters of industrial area - Google Patents

Abstract

FIELD: instrument engineering; inspection of parameters of labor conditions.

SUBSTANCE: device can be used for inspection and control and levels of physical factors of industrial area. Device has control unit, signal converters, temperature detector, noise detector and illumination detector, illumination and noise signal converters for any detector, maximal and minimal temperature presetting devices. Device also has ultimate level noise level set-point device, ultimate limiting illumination level set-point device, comparator for any measured parameters ultimate values set-point device (as temperature, noise and illumination level), logic gates for any factor to be controlled, permanent memory unit, temperature, noise and illumination values counters and oscillator.

EFFECT: improved precision of inspection of actual level of physical factors.

1 dwg

Description

The invention relates to the field of monitoring the parameters of working conditions, in particular to monitoring and controlling the actual levels of physical factors of the production environment, such as temperature, noise, illumination at workplaces of industrial enterprises.

A device for controlling the microclimate in storages is known [A.S. 334559, MKI G 05 D 23/19. Climate control device / P.M. Slavin. - Publ. in BI 12, 1972], containing the reference unit, converters, temperature sensors.

Its disadvantages are the difficulty of laying a significant number of communication lines, the decrease in accuracy due to errors introduced by the communication lines, the lack of information about the moisture content of the controlled environment.

The closest in technical essence to the claimed device is selected as a prototype device for regulating the temperature and relative humidity [A.s. 691812, MKI G 05 D 27/02. Device for regulating the temperature and relative humidity in the room / P.N. Grotov. - publ. in BI 38, 1979 (prototype)] containing a control unit, converters, temperature and humidity sensors, each of which is connected by a separate three-wire communication line to the control unit.

Its disadvantages are the low accuracy of monitoring the actual level of physical factors of the production environment.

The objective of this technical solution is to increase the accuracy of monitoring the actual level of physical factors of the production environment.

This is achieved by the fact that in the device containing the control unit, temperature sensor parameters converters, temperature sensors, signal converters from the temperature sensor, a noise sensor and a light sensor, noise and light signal converters for each sensor, setters of maximum and minimum temperature values, a setter are introduced the maximum permissible noise level, the adjuster of the maximum permissible level of illumination, a comparator for each adjuster of the maximum permissible values of the measured parameters (temperature ry, noise, illumination), logical elements for each controlled factor (first logical element, second logical element, third logical element, fourth logical element), storage device for maximum temperature values, storage device for minimum temperature values, storage device for noise levels , a storage device for light levels, shift registers, which in turn are connected to a control unit, and a generator.

The invention is illustrated in the drawing, which shows a structural diagram of a device for remote monitoring of parameters of working conditions.

The device contains a control unit 1, to the input of which the outputs of the shift registers 2, 5, 8, 11 are connected.

The following elements are connected to the shift registers: to the shift register 2, the counter of maximum temperature values 4 and a permanent memory 3, to the shift register 5 - the counter of minimum temperature values 7 and a permanent memory 6, to the shift register 8 - the counter of noise values 10 and the permanent memory 9, to the shift register 11 is a counter of illumination values 13 and a read-only memory 12.

The outputs of the following elements are connected to the inputs of the counters of the values of the physical factors of the production environment: the first logic element 14 is connected to the counter 4, the second logic element 15 is connected to the counter 7, the third logic element 16 is connected to the counter 10, and the fourth logic element 17 is connected to the counter 13, which provide signal pushing to the counter.

The inputs of the counters are connected by wire lines to the output of the control unit 18, to the input of which a signal generator 19 is connected.

The logical elements included in the structure of the system 14, 15, 16, 17 are interconnected, and the following elements are connected to them: comparator 20 has an output to the first logical element 14, comparator 21 to the second logical element 15, comparator 22 to the third logical element 16, the comparator 23 to the fourth logical element 17 and to the inputs of the logical elements is the output of the generator 19.

At the same time, the inputs of the comparators are connected: to the input of the comparator 20 - the output of the setpoint for maximum temperature 30, to the input of the comparator 21 - the output of the setter of minimum temperature 31, as well as to both inputs of the comparators 20, 21 signal converter 33. The input of the comparator 22 is connected with the output of the master of the maximum permissible noise level 27, the signal converter 29. At the input of the comparator 23 there are outputs of the master of the maximum permissible levels of illumination 24 and the signal converter 25.

The values of the actual levels of physical factors of the production environment are recorded by temperature sensors 32, noise 28, light 26. The signal from the sensors is transmitted to signal converters. This is achieved by connecting the output of the temperature sensor 32 with the signal converter 33, the output of the noise sensor 28 with the input of the signal converter 29, the output of the light sensor 26 with the input of the signal converter 25.

The device for remote monitoring of the parameters of working conditions works as follows: after power is supplied, the generator 19 begins to generate electrical signals, a temperature sensor 32, noise 28, light 26 start to measure the actual level of physical factors of the production environment. From them, the measurement information is supplied to the signal converters from the temperature sensors 33, noise 29, illumination 25. After a certain time interval at the output of the signal converters from the temperature sensors 32, noise 28, illumination 26, a digital code appears corresponding to the value of the signal read from the sensors. At this point, the comparators 20, 21, 22, 23 compares the signal received from the primary signal converters and the information from the critical values of the measured factors: the maximum temperature value 30, the minimum temperature value 31, the maximum value of noise levels 27, the minimum value of light levels 24 Depending on the results of comparing the actual level of temperature, noise, illumination with their critical values read from the setters, the signal is transmitted to the logic elements 14, 15, 16, 17, if the fact The level of the factor is beyond the limits of extreme values and is not transmitted if they are normal. The signals coming from the logic elements are read by counters 4, 7, 10, 13. The received information is stored by permanent storage devices 3, 6, 9, 12. Data stored in permanent storage devices is processed (scaling, filtering, and other necessary transformations) , and then written to the shift registers 2, 5, 8, 11, which encode the data and transmit them via the communication lines to the control unit 1. After the data transfer is completed, the shift registers go into standby mode.

Thus, in the device for remote monitoring of the parameters of the production environment there are blocks of signal converters, comparators, logic elements, counters, read-only memory devices, shift registers that provide the exchange of digital signals with the control unit on one common communication line. Digital transmission of information signals ensures the elimination of errors introduced by information lines. In addition, the total consumption of electric energy is reduced, since the sensor blocks and signal converters are activated only in the transmission mode, and the rest of the time they are in standby mode with minimal energy consumption.

Claims (1)

A device for remote monitoring of parameters of working conditions, comprising a control unit, signal converters, a temperature sensor, characterized in that a noise sensor and an ambient light sensor, noise and light signal converters for each sensor, maximum and minimum temperature settings, a maximum permissible level set are introduced into it noise adjuster of the maximum permissible level of illumination, a comparator for each adjuster of the maximum permissible values of the measured parameters of temperature, noise, illumination , logical elements for each monitored factor, the first logical element, the second logical element, the third logical element, the fourth logical element, a permanent memory device for maximum temperature values, a permanent memory device for minimum temperature values, a permanent memory device for noise levels, a permanent memory arrangement of light levels, shift registers, counter of maximum temperature values, counter of minimum temperature values, noise value counter , an illumination value counter and a generator, the control unit being connected to shift registers, the inputs of which are connected to the outputs of read-only memory devices, namely: the inputs of the shift registers are connected to the outputs of the read-only memory device of maximum temperature values, to the read-only memory device of minimum temperature values , with the output of a permanent memory device for noise, with the outputs of a permanent memory device for illumination values and a counter for maximum temperatures s, with a counter of minimum temperature values, a counter of noise values, a counter of illumination values, to the inputs of which the output of the first logic element, the second logic element, the third logic element, the fourth logic element are connected, and the outputs of the comparators are connected to the inputs of the logic elements, in turn, all four logic elements are interconnected and with the output of the generator, which is connected to the input of the control unit, the outputs of the latter are connected to the inputs of the shift registers, with the input a meter of maximum temperature values, a counter of minimum temperature values, a noise value counter, an illumination value counter, with inputs of a permanent temperature memory device, a constant temperature memory device, a minimum temperature memory device, a noise memory device, a brightness memory device, inputs the transducers are connected to the outputs of the sensors, namely: the output of the temperature sensor is connected to the input of the converter, the output of the sensor is noise with the input of the converter, the output of the ambient light sensor with the input of the converter, the latter are connected to the inputs of the respective comparators, which also connect the converters and outputs of the settings, namely: the output of the setpoint for maximum temperature values, the output of setter of minimum temperature values, the output of setter of maximum noise values, output setpoint minimum values of illumination.