Process transmission device with several operation modes

FIELD: physics; measurement.

SUBSTANCE: proposed device for measuring a process parametre of a production process has a sensor for measuring the process parametre and generating an output signal. A mode selector is meant for selecting operation modes. At least one operating mode is linked to the operating range of the sensor. A circuit for correcting the output signal of the sensor is used, in accordance with at least one operating mode, as well as for generating the output signal for the transmission device, which is the measured process parametre.

EFFECT: more accurate measurement of a process parametre of a production process.

34 cl, 5 dwg

 

The technical field

The present invention relates to a transmitting device having an improved function that enables you to switch between two modes of operation corresponding to the specific process conditions.

The level of technology

Technological transmitting devices (sensors) are used to monitor and control manufacturing processes through the measurement of various parametrov process materials used in the process. Technological materials are fluids (fluids) or a mixture fluid in liquid or gaseous phase. In this description, the terms "fluid" and "process fluid" includes materials in liquid and gaseous phase and mixtures of such materials.

One characteristic of the process fluid, which is monitored is pressure. Pressure may be the pressure drop or pressure, gauge, absolute or static pressure. In some installations, the measured pressure is used directly. In other configurations, the measured pressure is used for other process parameters. For example, differential pressure, measured along the flow limiter in the pipeline, is related to the speed of flow of a fluid is the medium in the pipeline. Similarly, the differential pressure measured between two vertical points in the reservoir connected to the liquid level in the tank.

Process transmitters are used to measure process parameters and remote transmission of measured process parameters, for example, in the control room. Transmission may occur through different environments, such as two-wire loop process control, line, wireless, etc.

In installations where the process parameter that must be measured is the pressure, in the process of transmitting devices use pressure sensors. The pressure sensors produce output signals related to applied pressure. It is known that the relationship between the output signal and a variable pressure changes between the pressure sensors. Generally, these variations are a function of the measured pressure and temperature pressure sensor, and these variations are sometimes a function of static pressure.

To increase the accuracy of measurements of pressure sensors, each pressure sensor is usually subjected to a calibration process during manufacturing. The calibration process involves applying known pressures to the pressure sensor and measure the output of the pressure sensor. Typically, the data receive is at different temperatures. For example, the pressure sensor can measure pressure from 0 to 250 inches with ten equal intervals of 25 inches, 50 inches, etc. Multiple data sets can be obtained at different temperatures. The data is then approximated to a polynomial curve, for example, through the use of methods of approximation of the curve by method of least squares. Then the coefficients of the polynomial are stored in the memory of the transmitting device and used to adjust subsequent pressure measurement performed by the pressure sensor. In General, the specifications can be stored as polynomial coefficients or as technical specifications in the table.

In pharmaceuticals, Biopharmaceuticals, as well as the manufacture of foods and beverages industrial system and its components must be sterilized before use, which means that periodically, the system must be cleaned, for example, steam. In addition, some facilities are provided by the subsystem of the process which must be maintained in the temperature range that is narrower than the typical range of specifications.

Since sensors are usually characterized by a number of intervals and temperatures, the approximation of a polynomial in a narrower temperature range can bring the to residual errors at specific temperatures within the operating range.

The invention

In one embodiment, the transmitting device measures the technological parameter of the production process. The transmitting device includes a sensor for measuring a process variable and signal output of the sensor. The mode selector is used to select operating modes. At least one operating mode associated with the expected range of the measured process parameter. The scheme is intended to compensate the output of the sensors according to at least one operating mode and generate an output signal transmitting unit representing the measured process parameter.

In another embodiment, the transmitting device for measuring a process variable associated with the production process, contains a sensor for measuring the parameter of the process and formation of the output signal of the sensor. The mode selector is used to select operating modes of the pressure sensor. Each operating mode corresponds to the technical characteristics associated with the sensor output in the range of operating conditions. The scheme is intended to compensate the output signal of the sensor to generate an output signal transmitting device representing the pressure.

In another embodiment, those is technological sensor for measuring a process variable of the production process is designed to compensate for the measured process parameter for two or more operating modes. The measuring element is designed to measure a parameter and generate an output signal of the sensor. The microprocessor provides output processing of the sensor output transmission device according to one of two operating modes. Receiver-transmitter is intended to transmit the output of the transmitting device to the control center.

Brief description of drawings

The invention is further explained in the description of the preferred variants of the embodiment with reference to the accompanying drawings, in which:

Figure 1 depicts a General view of the transmitting device in the monitoring system or process control according to the invention;

Figure 2 - schematic representation of the cross-section of the transmitting device flow according to the invention;

Figure 3 is a simplified block diagram of a system having multiple operating modes according to the invention;

4 is a simplified block diagram of the system with the scheme for the automatic changing of operating modes according to the mode of the technological process according to the invention;

5 is a simplified block diagram of the system with the display according to the invention.

Detailed description of preferred embodiments of the invention

Before a detailed description of the present invention is illustrated one version of the implementation process is Reda, in which it can be used. Figure 1 presents an example of technological transmitting device 100 for monitoring and process control. The transmitting device 100 is connected to the pipe 102 through the flange 104 of the tube. The pipeline 102 is leaking fluid, such as natural gas. The transmitting device 100 measures the differential pressure, absolute pressure and temperature and provides an output signal characterizing the mass flow rate of the fluid.

During operation, the temperature sensor 106 measures the process temperature downstream from the transmitting device 100 of the stream. The analog temperature signal is transmitted via cable 108 in the transmitting device 100 through the explosion-proof sleeve 110 on the housing of the transmitting device. In an alternative embodiment, the temperature sensor can be installed inside the enclosure, or flameproof bushing 110 is not required. The transmitting device 100 measures the differential pressure and accepts analog input temperature of the process. Case transmitting device preferably contains electronic casing 112 connected to the casing 114 of the sensor module. The transmitting device 100 is connected to the pipe 102 via a standard three-or paticipant line.

On Phi is .2 schematically presents a cross-section of the transmitting device 100. In the pipeline 100 has a limiter that serves as the primary element 116. Process connections 118 mounted on each side of the limiter 116 and are used to form differential process pressure input pressure transmitting device 100. For example, isolating diaphragm (not shown) can be used to isolate the internal filling of the fluid located in the transmitting device 100, from the process fluid in process connection 118. The sensor 120 differential pressure determines the process pressure and generates the input signal for the electronic circuit 122. In addition, the temperature sensor 124 generates the input signal for the electronic circuit 122, which is connected with the temperature sensor 120 pressure. The temperature sensor 124 may be installed in any location, but preferably provides an accurate measurement of the temperature sensor 120 pressure. Typically, the temperature sensor 124 is used in addition to the temperature sensor 106.

In accordance with the present invention an electronic circuit 122 compensates for errors in the measurement of pressure using the adjustment formula. The adjustment formula may contain the polynomial, the coefficients of the polynomial stored in the memory 126 of the storage device 100. A polynomial is a function of metering the frame of the pressure and the measured temperature. The calculated pressure can then be passed directly to the circuit 128 process control by the transmitting device 130 or may be used to determine other process parameters, such as the sequence of technological operations. A digital circuit such as a processor in the electronic circuit 122 may perform polynomial calculation and other calculations. Alternatively, the circuit 122 may determine the appropriate compensation from the lookup table stored in memory 126.

Figure 1 and 2 presents the transmitting device for measuring the flow rate based on pressure drop, but the present invention is applicable to other types of technological transmitting devices. In General, the present invention is applicable to any type of transmitting device or technological device for which the temperature measuring element is decomposed into components in the output signal. In some installations, the present invention may also be applicable in cases where the process material transfers heat to the electronic enclosure.

Known pressure sensors in the process of transmitting devices undergo the process of defining technical specifications during manufacturing. This process definition is of technical characteristics is designated as C/V (characterized and tested). During the C/V the pressure sensor is subjected to different pressures within the expected pressure range of the sensor. Measurements are performed at a certain number of fixed values of pressure, which are evenly (uniformly) distributed in a predetermined pressure range. For each pressure output of the pressure sensor or circuit pressure measurement is stored. The process of defining the technical characteristics of the usual runs at different temperatures. Using the stored results of the pressure sensor at each data point obtained for each applied pressure and temperature, applied the method of approximation of the curve to form the coefficients of the polynomial. A typical polynomial includes five factors associated with pressure, and four of the coefficient associated with the temperature. The coefficients are stored in the memory of the transmitting device and used to adjust table data of the pressure sensor during operation of the transmitting device.

The present invention includes the recognition that in some cases it is desirable to increase the measurement accuracy of the pressure sensor in a specific sub-range of temperatures, which is less than the entire temperature range. For example, in the manufacture of food and beverages and pharmaceutical and biopharmaceu the practical industry applications it is desirable to sterilize the system using the process known as the process of sterilization in place (SIP). The SIP process includes filling the system with steam at a certain pressure for a specified period of time to sterilize all of the elements that can come into contact with process fluid medium. In the SIP process, the temperature and pressure sensors connected to the system, increases to values above the boiling point of water and is maintained within a narrow range of temperatures within a specified period of time. In the SIP process, it is desirable to be able to continue to use pressure sensors to monitor the pressure of the system, not to create excess pressure in the system and that the system is maintained within the proper range of temperature/pressure required for bacterial sterilization.

The present invention improves the accuracy of the polynomial technical characteristics through the use of a larger number of data points or by using more close to each other data point in a particular subrange of the range of specifications. These additional (or more closely placed data points) provide more accuracy in polynomial technical characteristics in the selected sub-range. The present invention uses the non-uniform distribution of points compens is the pressure on the working range of the pressure sensor, to provide additional data points for the calculation of compensation in the desired sub-range of the working range. More specifically, the present invention uses the non-uniform distribution of points pressure compensation in the selected temperature range, thereby receiving a larger number of data points compensation for the best approximation polynomial in the selected temperature range. Alternatively, the present invention uses two processes with two sets technical specifications, one of which includes a uniformly distributed point pressure compensation in the working range, and the second involves a more closely spaced point pressure compensation in the desired sub-range of the working range. The distribution of data points, in General, is uneven and can be selected on demand. For example, the distribution may be in accordance with the speed change, a quick line or sloped change, or more complex functions such as logarithmic or exponential change. An example process that may be used in transmitting the pressure devices of the present invention described in the patent application US 10/675214 (30 September 2003).

When determining the conditions that prevail during certain operations (such as normal RA is ocie conditions, working conditions SIP etc), technological transmitting device can provide optimal performance under certain conditions. Before changes in operating conditions, the user can change the mode of technological transmitting device using the communication interface. Alternatively, you can change the mode of technological transmitting device by determining the process conditions associated with a specific mode, and change the mode to match the conditions of the process.

The present invention includes a transmitting device or other technological device used to switch between modes, such as normal operation, the mode SIP mode water for pumping, the mode of liquid chromatography, etc. to Switch between modes entails the choice of polynomial coefficients compensation, optimized for specific process conditions. Ideally, technological transmitting device switches to the mode that is associated with the corresponding polynomial coefficients of compensation, to optimize the compensation for a specific operation.

From the point of view of technological transmitting device mode is a state corresponding to a set of pre-determined the military technical characteristics. From the point of view of the technological process mode is working condition characterized by temperature, pressure or other process parameters or their combinations. The operating mode of technological transmitting device is configured to operating conditions of the technological process, to optimize the accuracy of the measured parameters with the help of technical characteristics. In other words, if technological transmitting device stores the specifications for standard temperature range (normal mode), and for a narrow range of temperatures (different mode), and when the process temperature rises to a narrow range, the other mode should be used in the compensation process. Thus, the performance of a transmitting device (specifically, the temperature effect can be optimized for a narrow operating range.

As previously explained, in order to achieve the level of purity required, for example, in the pharmaceutical, biopharmaceutical processes, as well as the manufacture of foods and beverages, pipes, containers for waste storage and reaction vessels regularly sterilized through the introduction of high-pressure steam. Transmitting devices pressure, combined with the cleaned vessels, act as the basis for tracking the ment, in some cases, to control the pressure sterilization. Although currently available microprocessor-based transmitters pressure allow compensation of the output signal when the temperature changes, you may experience significant temperature errors. Thus, there remains a need for an improved temperature compensation.

Figure 3 presents a simplified block diagram of a system 300 according to the present invention. The system 300 includes a transmitter 302, coupled with mechanical process 304 and connected to the control center 306 via line 308 (which may be wired or wireless).

The sensors 310 are placed in the transmitting device 302 and are used to measure a process parameter (e.g., pressure) process 304. The sensors 310 can also include a temperature sensor for measuring the temperature of another sensor, such as temperature pressure sensor. The sensors 310 produce output signals in accordance with the measured parameters and pass them to the schema 312, which uses polynomial equations compensation to correct the measured output to the transmission of measured parameter in the dispatch center 306 via line 308 connection.

The memory 314 stores the technical ha is acteristic during the process to normal operating range and a narrower operating range, which are hereinafter referred to as "modes". Each time the circuit 312 corrects the measured values received from sensors 310, the microprocessor in the circuit 312 uses the stored coefficients to perform the compensation. The selector 316 mode selects which set of technical characteristics of the memory 314 provides the schema 312. Circuit 312 corrects the measured parameters and generates adjusted ("given") output signal which is transmitted to receiver-transmitter 318 for transmission via line 308 connection.

The selector 316 modes can be advanced software device. Alternatively, the selector 316 can be implemented as a schema. In any case, the selector 316 mode can be controlled through signals transmitted from the control center 306.

In General, the mode of operation of the technological process often known to change settings. For example, some production processes are executed sequentially. During sequential processing is normal operation. However, between sequences or periodically vessels and piping of the process flow should be sterilized. When sterilising dispatch center 306 transmits a signal of the mode selection line 308 communication transmitting device 302. Receiver-transmitter 318 when Imam signal selection mode and delivers the received signal to the controller in the circuit 312, which instructs the selector 316 mode to change the mode. Then the memory 314 outputs specifications associated with the selected mode, which then can be used in the circuit 312 to generate an output signal that is configured to process 304.

The selector 316 modes can be part of the schema 312 or may be a separate circuit. The selector 316 can be implemented as a software characteristic in the circuit 312. In General, the selector 316 mode shown empty to indicate that it is not necessarily separated from the schema 312.

The SIP process is carried out within a narrow temperature range above the boiling point of water. Accurate measurement of pressure within a more narrow range of temperatures is desirable in order to ensure complete sterilization and to prevent the creation of excessive pressure in the system elements. However, the SIP process is only one of many possible modes in which the operator can maintain the system.

In addition to the SIP profile technological transmitting device may have a water pump (WFI)mode liquid chromatography or any other mode that may be characterized by a narrow range of temperature or pressure. In the food industry manufacture of food and beverages and pharmaceutical, biopharmaceutic the banking sectors of these modes, as SIP, WFI or liquid chromatography, may be preferred depending on the configuration.

In General, the described system WFI is a system of continuous circulation of ultrapure water. In the biopharmaceutical industry some of the processes typically require the use of ultra-pure water. Ultrapure water is used for cleaning and sometimes as a transport and hydrated environment. Ultrapure water in these systems must be maintained at high temperatures to ensure sterility (the temperature of semesterisation).

Liquid chromatography is also often used in biopharmaceutical production processes, and customers may want to have the sensors to operate in a mode of liquid chromatography. For example, the final product, which is grown by fermentation or culturing in the biopharmaceutical production process, must be collected from the environment of cultivation. Periodically the procedure used is known as liquid chromatography high purity, which is carried out at very low temperatures, to achieve the best filtering results. Clients may want their technological transmitting devices supported selectable mode in the range of low temperatures.

In addition, depending on realizational be desirable for other modes of operation, which can be specified by the client. In other words, the client can specify the mode within the range of temperature and pressure for which the desired additional technical specifications. The manufacturer or supplier in this case can be described device the additional data points in accordance with the given client range to provide specifications for a selectable mode.

Under the SIP, WFI, liquid chromatography and other asked modes of operation pressure and temperature are measured within a narrow subset of the normal operating range. By providing advanced to select the modes corresponding to the mode with the associated technical characteristics can be selected for the desired process. As a result, the adjusted output signal generated by the circuit 312 may be a more accurate representation of the measured parameter, than if you had used the standard specifications.

Figure 4 shows a system 400 technological transmitting device according to the alternative implementation of the present invention. The system 400 technological transmitting device includes a transmitting device 402, mechanically coupled with technological percent is som 404 and connected to the control center 406 via line 408 (which may be wired or wireless).

The sensors 410 is placed in the sending unit 402 and is used to measure a process parameter (e.g., pressure) process 404. The sensors 410 can also include a temperature sensor for measuring the temperature of another sensor, such as temperature pressure sensor. The sensors 410 produce output signals related to the measured parameters, and the output is given in scheme 412, which uses polynomial equations compensation to adjust the measured signal before transmission of measured output to the control center 406 via line 408 connection.

The memory 414 stores the specifications for one or more modes of operation. The selector 416 mode selects which set of technical characteristics of the memory 414 provides the circuit 412 to compensate for the measured parameters from the sensors 410. Circuit 412 generates a corrected output signal which is transmitted to receiver-transmitter 418 for transmission via line 408 connection.

The selector 416 mode can be advanced software device. Alternatively, the selector 416 mode can be implemented in the form of a schema. In any case, the selector 416 mode can be controlled through signals transmitted from the control center 406. Additionally, technological transmitting device 402 where the scheme but 420 definition mode and a temperature sensor 422, which is mechanically connected to the process 404. The temperature sensor 422 is shown outside the technological transmitting device 402, but it can be placed inside technological transmitting device 4 02 provided that it is used for monitoring the temperature of the process 404.

The temperature sensor 422 measures the process temperature, which is processed by circuit 420 definition mode. In this embodiment, the circuit 420 determination mode may be part of the schema 412 or may be a separate element. Alternatively, the circuit 420 detector mode can be a software device. Regardless of the specific implementation, the circuit 420 definition mode monitors the temperature sensor 422. When the process temperature falls within a narrower range, is associated with shorter operating mode, for which the memory has stored a set of technical characteristics circuit 420 mode selection instructs the selector 416 mode to change the operating mode of technological transmitting device 400. In other words, the circuit 420 mode selector monitors the process 404 and automatically changes the mode of technological transmitting device 400 via the selector 416 mode to sootwetstwu the th conditions of the process.

By automatically determining the operating mode of the technological process 404 technological transmitting device 400 may change operating modes during operation to generate an output signal which more accurately describes the measured parameter.

One method of automatic detection of the operating mode of the technological process is to track the rate of change or gradient for a certain period of time or between two sensors that are posted. For example, the SIP process typically changes the measured temperature of system components quickly in comparison with changes of temperature of the fluid during normal operation. Moreover, these changes usually need to be detected first by the sensors closer to the place of injection of steam in comparison with sensors placed further downstream in the process. Thus, in one embodiment, the automatic detection mode changes can be based on the gradient system temperature over time or between the two sensors.

Figure 5 presents a simplified block diagram technological transmitting device 500 having a display, according to a variant implementation of the present invention. Technological transmitting device 500 includes a transmitter 502, m is coupled with a mechanical process 504. As described above, the transmitting device contains circuits and sensors for measuring a process variable, the correction of the measured parameter with the technical characteristics stored in the memory of the transmitting device 502, and the adjusted transmission parameter in the dispatch center 506 via line 508 connection (wired or wireless). The display 510 may be provided on the housing of the transmitting device 502, to provide an indication of the operating mode of the transmitting device 502 at any given time. In other words, the scheme of the transmitting device 502 may be used to transmit a signal indicating the current operating mode of the transmitting device 502, the display 510. For example, the display 510 may be an LCD display or other simple renderer that displays a simple ASCII text, such as "MODE=SIP request. Button (not shown) may be provided on the LCD display to enable the display on request for a few seconds, the display 510 is not consumed energy when it is not required.

In General, through a set of technical characteristics of the transmitting device for use within a narrow predetermined operating range technical characteristics can be matched more precisely to a narrow operating range. In the pharmaceutical the food industry technological transmitting device with switching mode can be used to monitor the sterilization process (SIP process) and then switch to normal operating mode for use in the ordinary course of the process. Thus, the device can be sterilized even in the moment when it monitors the sterilization process, to protect against excessive pressure, etc.

In an alternative embodiment, specifications for concrete technological transmitting device can be stored in the dispatch center, not in memory, connected to the device. In this embodiment, the transmitting device transmits the raw measurement data to the control center, where the system may use technical characteristics and operating mode of the system to compensate for the output.

Although the present invention is described for pressure sensors, it is applicable for most technological transmitting devices, where the temperature can affect the accuracy of the output signal. Moreover, the idea of providing a connected device with improved characteristic corresponding to a narrower operating range can be extended also to other options.

In addition to the above superior temperature characteristics, when the transmitting device is translated in a specific operating mode, the circuit breadboard is th transmitting device allows you to activate other pre-defined configuration parameters. For example, technological transmitting device may have different emergency levels of pressure and temperature associated with various operating modes. If the alarm level is exceeded, when the sending device is in a particular mode of operation, may be formed with the emergency alert signal and transmitted to the control center.

Although the present invention has been described with references to preferred embodiments of the specialists in the art should understand that modifications may be made in form and detail without departure from the spirit and scope of the invention.

1. A transmitter for measuring a process variable of the production process, containing
a sensor for measuring a process variable and generating a sensor signal,
a mode selector for selecting operating modes, with at least one operating mode refers to a specific process and is associated with an operating range of the sensor, the circuit for compensating the output of the sensor according to at least one operating mode and generate an output signal transmitting unit representing the measured process parameter.

2. The transmitting device according to claim 1, wherein the mode selector is implemented as about the testing the software.

3. The transmitting device according to claim 1, wherein the mode selector includes
a communication interface for receiving the user's selection,
a storage device containing the sets of the technical characteristics associated with each of the operating modes.

4. The transmitting device according to claim 3, characterized in that the circuit is designed to receive sets of technical specifications associated with the selected operating mode, and processing the output signal of the sensor using a set of specifications.

5. The transmitting device according to claim 1, wherein the sensor is a pressure sensor.

6. The transmitting device according to claim 1, characterized in that it further comprises a wireless receiving / transmitting device for transmitting the output signal of the transmitting device to the control center.

7. The transmitting device according to claim 1, characterized in that it further contains
receiving-transmitting device for transmitting the output signals from the transmitting device to the control center and to receive control signals from the control center,
when this received control signals provide control mode selector to select the operating mode.

8. The transmitting device according to claim 1, characterized in that it further contains the schema definition mode to automatically detect the operating conditions of the technology the RCM process and selection of the operating mode of the transmitting device based on certain operating conditions.

9. The transmitting device according to claim 1, characterized in that the operating mode contains the mode of water for injection and the mode of liquid chromatography.

10. The transmitting device according to claim 1, characterized in that the operating mode contains the mode of sterilization in place.

11. The transmitting device according to claim 1, wherein the operating mode selection is performed by the user to measure a process variable.

12. The transmitting device according to claim 1, characterized in that it further contains
a display for displaying the operating mode.

13. A transmitter for measuring a process variable of the production process, containing
a sensor for measuring a process variable and generating a sensor signal,
scheme to select between sets technical specifications, and each set of specifications provides connection between the output of the transmitting device with a range of operating conditions, the circuit is designed to compensate for the output of the sensor according to the selected set of technical characteristics and formation of the output signal of the transmitting devices, compensated in accordance with working conditions.

14. The transmitting device according to item 13, wherein the circuit contains
a microprocessor to compensate the output signal of the sensor according polynomial the resultant equation and the selected set of technical characteristics and
a mode selector for selecting between sets technical specifications.

15. The transmitting device according to item 13, wherein the at least two sets of technical characteristics is stored in the transmitting device, the first set of at least two sets of technical characteristics is a subset of the second set of technical specifications.

16. The transmitting device according to item 13, characterized in that it further comprises receiving-transmitting device for transmitting signals of the transmitting device to the control center and to receive control signals from the control center.

17. The transmitting device according to item 16, wherein the transceiver device is a wireless receiving / transmitting device for transmitting and receiving signals to and from the control center via a wireless connection.

18. Technological sensor for measuring a process variable of the production process and to compensate for the measured process parameter for two or more operating modes, containing
measuring element for measuring a process variable and generating a sensor signal,
a microprocessor for converting the output signal of the sensor output signal transmitting device according to one of two operating modes, related to the definition of the final process,
receiving-transmitting device for transmitting the output signal of the transmitting device to the control center.

19. Technological sensor p, wherein the microprocessor includes a mode selector for receiving an input signal and selecting one of the two or more operation modes based on the received input signal, a circuit for processing an output signal of a sensor according to the coefficients associated with the selected one of the operating modes.

20. Technological sensor p, characterized in that each operating mode corresponds to a set of technical characteristics of measuring elements in the range of temperatures and pressures.

21. Technological sensor according to claim 20, characterized in that at least one of the working modes corresponds to a temperature range that is a subset of the range of temperatures other operating mode.

22. Technological sensor p, characterized in that the measuring element is a pressure sensor.

23. Technological sensor p, characterized in that the receiver-transmitter provides transmission of signals over a wireless communication link between sensor technology and control center.

24. A transmitter for measuring a process variable of the production process, containing
a sensor for measuring process is about setting and forming the output signal of the sensor,
the first set of technical characteristics connecting the output of the transmitting device with the first range of operating conditions of the technological process,
the second set of technical characteristics connecting the output of the transmitting device with the second range of operating clovetechnology process, a scheme for selecting between the first and second sets of technical characteristics and compensation of the sensor output according to the selected set of technical characteristics to generate an output signal transmitting device, compensated in accordance with working conditions.

25. The transmitting device according to paragraph 24, wherein the first range and the second range overlap.

26. The transmitting device according to paragraph 24, wherein the first range and the second range do not overlap.

27. The transmitting device according to paragraph 24, characterized in that it further comprises a memory for storing a set of technical characteristics.

28. The transmitting device according to paragraph 24, wherein the sets of technical characteristics is stored in the lookup table, when this scheme is used to determine the set of technical specifications as necessary.

29. The transmitting device according to paragraph 24, wherein the circuit includes a mode selector for automatic selection between those sets the technical characteristics based on the detection of the gradient of technological parameter.

30. The transmitting device according to clause 29, wherein the process parameter is the temperature.

31. The transmitting device according to paragraph 24, characterized in that it further comprises a communication interface for receiving the signal of the user input.

32. The transmitting device according to p, wherein the user input is the selection of a set of technical specifications.

33. The transmitting device according to paragraph 24, wherein the first set of technical characteristics and the second set of technical characteristics are taken from the control center via communication lines.

34. The transmitting device according to paragraph 24, wherein the second set of technical characteristics correspond to at least one sterilization in place of water for injection and liquid chromatography.



 

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The invention relates to the field of systems software controls for household electrical appliances

FIELD: electrical engineering; systems for running check and control of one or more power consumers.

SUBSTANCE: proposed system for running check and control of set of power consumers, including domestic appliances, that incorporates provision for easy access to remote communication facilities at minimal set of power consumers and for their easy installation for operating under domestic conditions has its power consumers connected to first communication network through adequate interface facilities for exchanging information and/or instructions where transceiving means connected to mentioned first communication network are used to organize channel communications with second remote network and/or remote terminal. Novelty is that mentioned transceiving means are coupled with one of mentioned power consumers share one of interface facilities connected to mentioned power consumer.

EFFECT: enhanced effectiveness in operation with high performance characteristics.

18 cl, 3 dwg, 1 tbl

FIELD: pressure regulator, namely regulator power saving operation method and system providing selective turning on and off separate components of regulator in order to reduce power consumption.

SUBSTANCE: controller and each separate sensor are activated when it is necessary to read sensor data for sampling period. It reduces power value consumed by pressure regulator system. Additional actions for saving power are realized due to using battery pickup for controlling capacitance of battery of pressure regulator and due to changing operation mode of pressure regulator to power saving mode as battery capacitance decreases.

EFFECT: increased time period of pressure regulator maintenance due to its operation in mode of power saving.

47 cl, 19 dwg

FIELD: technology for automatic modeling of system for controlling process, wherein elements of user interface are organized in tree-like structure, reflecting topography of elements in process control system.

SUBSTANCE: each element is assigned to at least one input window, having a set of attributes for setting up and/or monitoring target device, controlled in system for controlling process. Current organization of tree-like structure is recorded as project, and list of all windows, opened during one and the same operation, and also attributes, are recorded as work session, by means of which state of elements is restored during repeated loading of process control system.

EFFECT: improvement of complicated structure of model of real system, positioning of involved graphical elements and information transfer.

3 cl, 6 dwg

FIELD: automation of processes with usage of field devices.

SUBSTANCE: method is realized in control device by means of operation program, which for parameterization in dialog mode is connected to field device via data transfer bus, and which has no access to device description, which describes behavior of field device in autonomous mode. Technical result is achieved because operation program connects to copy of software program of device executed in field device, realizing imitation of field device in dialog mode.

EFFECT: simplification and lower costs of programming.

8 cl, 3 dwg

FIELD: computer engineering.

SUBSTANCE: recharge unit emits infrared light from infrared unit in response to recharge request signal received from robot via wireless transceiver, and sends infrared radiation signal in accordance with infrared light radiation. The self-propelled robot communicates with the recharge unit using various data and sends recharge request signal to the recharge unit when accumulator charge level drops below a threshold level and moves back towards the recharge unit using image data input from camera unit as response to infrared radiation signal sent by the recharge unit. The robot has microprocessor for controlling robot movements for providing return to the recharge unit by processing data of infrared light position on picture introduced from camera unit when detecting infrared light presence in the picture.

EFFECT: accelerated return to recharge unit.

16, cl, 2 dwg

FIELD: automation of processes.

SUBSTANCE: method is claimed for transmitting measurement data between two measuring transformers, made with possible transmission of digital data according to "master - slave" principle through two communication connections in control system which is used as master device, and analog signals. Digital signals are also transmitted between both measuring transformers through additional communication connection, received digital signals are researched at least based on one characteristic value of measurements, required for processing in measuring transformer-receiver.

EFFECT: simplification and increased profitability of data transmission.

17 cl, 1 dwg

FIELD: physics.

SUBSTANCE: field instrument is connected to a control unit via a data bus, the control unit requests personal identifier of the field instrument periodically, and compares it to the stored identifier, and if the identifier differs an alarm or warning message is issued, and the requested identifier is saved to the databank with a timing mark.

EFFECT: eliminates unauthorised manipulation of field instruments.

11 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: electronic measuring instrument contains first processor (21) which executes processing of measured values during first processing cycles using first algorithm, and second processor (25) implementing coordination of tasks including initialisation of the first processor (21). The second processor (25) during time intervals exceeding first processing cycle reads from the first processor (21) control data record and based on this record executes first algorithm to check function correctness of the first processor.

EFFECT: creation of electronic measuring instrument with high probability of hardware faults detecting.

9 cl, 2 dwg

FIELD: physics; measurement.

SUBSTANCE: proposed device for measuring a process parametre of a production process has a sensor for measuring the process parametre and generating an output signal. A mode selector is meant for selecting operation modes. At least one operating mode is linked to the operating range of the sensor. A circuit for correcting the output signal of the sensor is used, in accordance with at least one operating mode, as well as for generating the output signal for the transmission device, which is the measured process parametre.

EFFECT: more accurate measurement of a process parametre of a production process.

34 cl, 5 dwg

FIELD: automation.

SUBSTANCE: particular group of inventions relates to redundant system and automation method for technical device management. Technical result is achieved by that in redundant system of automation, and also in operating procedure of such automation system there are provided two automation instruments, which are outfitted by common memory block, where there are stored automation tool condition data, herewith memory block is implemented in the form of "Reflective Memories". Hereby, automation instruments allows immediate access to common database, and in case of failure of main automation instrument it takes place smooth shifting to standby automation instrument.

EFFECT: increase in automation system productivity.

10 cl, 1 dwg

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