CN112082092A - Monitoring system and monitoring method based on flowmeter - Google Patents
Monitoring system and monitoring method based on flowmeter Download PDFInfo
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- CN112082092A CN112082092A CN202011001199.1A CN202011001199A CN112082092A CN 112082092 A CN112082092 A CN 112082092A CN 202011001199 A CN202011001199 A CN 202011001199A CN 112082092 A CN112082092 A CN 112082092A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
Abstract
The invention discloses a monitoring system and a monitoring method based on a flowmeter, which relate to the technical field of flowmeter monitoring and comprise a monitoring system and a monitoring method, wherein the monitoring system comprises a data acquisition module, an A/D converter, a transmitter, a central processing unit, a data comparison module, a data feedback module, a storage module, an execution module and a display module, and the monitoring method comprises the steps of instrument correction, safety range value setting, data acquisition and transmission, data storage and comparison and command execution. According to the invention, the flow value can be monitored in real time through the monitoring system and the monitoring method, and the response under the safe or dangerous condition can be made according to the set safe flow area value, so that the safety is greatly improved.
Description
Technical Field
The invention relates to the technical field of flow meter monitoring, in particular to a monitoring system and a monitoring method based on a flow meter.
Background
The flow meter is defined as: meters that indicate the measured flow rate and/or the total amount of fluid in a selected time interval are, in short, meters for measuring the flow rate of fluid in a pipe or open channel. In general, in a large-scale plant, a flow meter is required to detect the flow rate in each pipeline, and the flow meter is required to be constantly monitored to ensure that the flow rate in each pipeline is at a safe value.
However, in the prior art, most monitoring methods are to manually monitor, examine and monitor one by one, which not only increases the labor intensity of the staff, but also cannot achieve the function of monitoring the flow value in real time, so that the staff cannot comprehensively investigate the flow condition of the pipeline.
Disclosure of Invention
The present invention is directed to a monitoring system and a monitoring method based on a flow meter, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a monitoring system and a monitoring method based on a flowmeter comprise a monitoring system and a monitoring method, wherein the monitoring system comprises a data acquisition module, an A/D converter, a transmitter, a central processing unit, a data comparison module, a data feedback module, a storage module, an execution module and a display module, and the monitoring method comprises the steps of instrument correction, safety range value setting, data acquisition and transmission, data storage and comparison and command execution.
As a further scheme of the invention: the data acquisition module is including flowmeter and time-recorder, the data contrast module is including flow data contrast unit and time data contrast unit, the execution module is including control unit one, control unit two and control unit three, the display module is including pilot lamp, alarm and display.
As a still further scheme of the invention: the output of flowmeter is connected with the input of AD converter, the output of timer and AD converter all is connected with the input of transmitter, the input of transmitter is connected with central processing unit's input, central processing unit is connected with storage module, and central processing unit is connected with data contrast module, data contrast module is connected with data feedback module, data feedback module is connected with central processing unit, central processing unit's output is connected with execution module's input, the output of control unit one is connected with the input of pilot lamp, the output of control unit two is connected with the input of alarm, the output of control unit three is connected with the input of display.
As a still further scheme of the invention: the specific steps of the instrument calibration are as follows:
the method comprises the following steps: the flowmeter and the timer are subjected to zero calibration;
step two: and detecting whether the indicator light, the alarm and the display work normally or not.
As a still further scheme of the invention: the specific steps of the safety range value setting are as follows:
the method comprises the following steps: setting a region value of the safety flow in the storage module;
step two: and setting dangerous flow time interval values in the storage module, wherein the time interval is 5-15 s.
As a still further scheme of the invention: the specific steps of data acquisition and transmission are as follows:
the method comprises the following steps: the flow voltage signal measured by the flowmeter is converted into a flow digital signal through an A/D converter, and the flow digital signal is transmitted to a transmitter;
step two: the time digital signal of the timer is transmitted to the transmitter;
step three: the transmitter transmits the flow digital signal and the time digital signal to the central processing unit.
As a still further scheme of the invention: the specific steps of data storage and comparison are as follows:
the method comprises the following steps: the central processing unit stores the real-time flow numerical value and the corresponding real-time numerical value to the storage module;
step two: the central processing unit transmits the flow digital signal and the time digital signal to the data comparison module, and the data comparison module compares the real-time flow value and the real-time interval value of the flow digital signal and the time digital signal according to the region value and the dangerous flow time interval value of the safe flow set by the storage module;
step three: when the real-time flow value is not in the safe flow area value and the real-time interval value is larger than the dangerous flow time interval value, the data feedback module feeds back the dangerous signal.
As a still further scheme of the invention: the specific steps of the command execution are as follows:
the method comprises the following steps: when the central processing unit receives the safety signal, the central processing unit transmits a safety command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a non-working state, a third control unit controls the display to be in a working state, and a safe real-time flow value and a corresponding real-time value are presented on the display;
step two: when the central processing unit receives a danger signal, the central processing unit transmits a danger command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a working state, the indicator light is normally on, the alarm gives an alarm, a display is controlled to be in a working state by a third control unit, and a dangerous real-time flow value and a corresponding real-time value are displayed on the display.
Compared with the prior art, the invention has the beneficial effects that:
1. the monitoring system and the monitoring method can monitor the flow value in real time, and can respond to the safety or dangerous condition according to the set safety flow area value, thereby greatly improving the safety;
2. the invention realizes the monitoring under the remote unmanned state, and greatly reduces the working intensity of workers compared with manual monitoring of the flowmeter;
3. the invention realizes the function of storing the flow value in each time period, and the flow value is displayed by the display, thereby facilitating the comprehensive investigation of the pipeline flow condition by the staff.
Drawings
Fig. 1 is a system block diagram of a flow meter based monitoring system and method.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In embodiment 1 of the present invention, a monitoring system and a monitoring method based on a flow meter include a monitoring system and a monitoring method, where the monitoring system includes a data acquisition module, an a/D converter, a transmitter, a central processing unit, a data comparison module, a data feedback module, a storage module, an execution module, and a display module, and the monitoring method includes steps of instrument calibration, setting of a safety range value, data acquisition and transmission, data storage and comparison, and command execution.
The data acquisition module comprises a flowmeter and a timer, the data comparison module comprises a flow data comparison unit and a time data comparison unit, the execution module comprises a first control unit, a second control unit and a third control unit, the display module comprises an indicator lamp, an alarm and a display, the output end of the flowmeter is connected with the input end of an A/D converter, the output ends of the timer and the A/D converter are connected with the input end of a transmitter, the input end of the transmitter is connected with the input end of a central processing unit, the central processing unit is connected with a storage module, the central processing unit is connected with the data comparison module, the data comparison module is connected with a data feedback module, the data feedback module is connected with the central processing unit, the output end of the central processing unit is connected with the input end of the execution module, and the output end of the first control unit is connected with the input end, the output end of the control unit II is connected with the input end of the alarm, and the output end of the control unit III is connected with the input end of the display.
The specific steps of instrument calibration are as follows:
the method comprises the following steps: the flowmeter and the timer are subjected to zero calibration;
step two: and detecting whether the indicator light, the alarm and the display work normally or not.
The specific steps for setting the safety range value are as follows:
the method comprises the following steps: setting a region value of the safety flow in the storage module;
step two: and setting dangerous flow time interval numerical values in the storage module, wherein the time interval is 5 s.
The specific steps of data acquisition and transmission are as follows:
the method comprises the following steps: the flow voltage signal measured by the flowmeter is converted into a flow digital signal through an A/D converter, and the flow digital signal is transmitted to a transmitter;
step two: the time digital signal of the timer is transmitted to the transmitter;
step three: the transmitter transmits the flow digital signal and the time digital signal to the central processing unit.
The specific steps of data storage and comparison are as follows:
the method comprises the following steps: the central processing unit stores the real-time flow numerical value and the corresponding real-time numerical value to the storage module;
step two: the central processing unit transmits the flow digital signal and the time digital signal to the data comparison module, and the data comparison module compares the real-time flow value and the real-time interval value of the flow digital signal and the time digital signal according to the region value and the dangerous flow time interval value of the safe flow set by the storage module;
step three: when the real-time flow value is not in the safe flow area value and the real-time interval value is larger than the dangerous flow time interval value, the data feedback module feeds back the dangerous signal.
The specific steps of command execution are as follows:
the method comprises the following steps: when the central processing unit receives the safety signal, the central processing unit transmits a safety command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a non-working state, a third control unit controls the display to be in a working state, and a safe real-time flow value and a corresponding real-time value are presented on the display;
step two: when the central processing unit receives a danger signal, the central processing unit transmits a danger command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a working state, the indicator light is normally on, the alarm gives an alarm, a display is controlled to be in a working state by a third control unit, and a dangerous real-time flow value and a corresponding real-time value are displayed on the display.
In embodiment 2 of the present invention, a monitoring system and a monitoring method based on a flow meter include a monitoring system and a monitoring method, where the monitoring system includes a data acquisition module, an a/D converter, a transmitter, a central processing unit, a data comparison module, a data feedback module, a storage module, an execution module, and a display module, and the monitoring method includes steps of instrument calibration, setting of a safety range value, data acquisition and transmission, data storage and comparison, and command execution.
The data acquisition module comprises a flowmeter and a timer, the data comparison module comprises a flow data comparison unit and a time data comparison unit, the execution module comprises a first control unit, a second control unit and a third control unit, the display module comprises an indicator lamp, an alarm and a display, the output end of the flowmeter is connected with the input end of an A/D converter, the output ends of the timer and the A/D converter are connected with the input end of a transmitter, the input end of the transmitter is connected with the input end of a central processing unit, the central processing unit is connected with a storage module, the central processing unit is connected with the data comparison module, the data comparison module is connected with a data feedback module, the data feedback module is connected with the central processing unit, the output end of the central processing unit is connected with the input end of the execution module, and the output end of the first control unit is connected with the input end, the output end of the control unit II is connected with the input end of the alarm, and the output end of the control unit III is connected with the input end of the display.
The specific steps of instrument calibration are as follows:
the method comprises the following steps: the flowmeter and the timer are subjected to zero calibration;
step two: and detecting whether the indicator light, the alarm and the display work normally or not.
The specific steps for setting the safety range value are as follows:
the method comprises the following steps: setting a region value of the safety flow in the storage module;
step two: and setting dangerous flow time interval values in the storage module, wherein the time interval is 10 s.
The specific steps of data acquisition and transmission are as follows:
the method comprises the following steps: the flow voltage signal measured by the flowmeter is converted into a flow digital signal through an A/D converter, and the flow digital signal is transmitted to a transmitter;
step two: the time digital signal of the timer is transmitted to the transmitter;
step three: the transmitter transmits the flow digital signal and the time digital signal to the central processing unit.
The specific steps of data storage and comparison are as follows:
the method comprises the following steps: the central processing unit stores the real-time flow numerical value and the corresponding real-time numerical value to the storage module;
step two: the central processing unit transmits the flow digital signal and the time digital signal to the data comparison module, and the data comparison module compares the real-time flow value and the real-time interval value of the flow digital signal and the time digital signal according to the region value and the dangerous flow time interval value of the safe flow set by the storage module;
step three: when the real-time flow value is not in the safe flow area value and the real-time interval value is larger than the dangerous flow time interval value, the data feedback module feeds back the dangerous signal.
The specific steps of command execution are as follows:
the method comprises the following steps: when the central processing unit receives the safety signal, the central processing unit transmits a safety command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a non-working state, a third control unit controls the display to be in a working state, and a safe real-time flow value and a corresponding real-time value are presented on the display;
step two: when the central processing unit receives a danger signal, the central processing unit transmits a danger command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a working state, the indicator light is normally on, the alarm gives an alarm, a display is controlled to be in a working state by a third control unit, and a dangerous real-time flow value and a corresponding real-time value are displayed on the display.
In embodiment 3 of the present invention, a monitoring system and a monitoring method based on a flow meter include a monitoring system and a monitoring method, where the monitoring system includes a data acquisition module, an a/D converter, a transmitter, a central processing unit, a data comparison module, a data feedback module, a storage module, an execution module, and a display module, and the monitoring method includes steps of instrument calibration, setting of a safety range value, data acquisition and transmission, data storage and comparison, and command execution.
The data acquisition module comprises a flowmeter and a timer, the data comparison module comprises a flow data comparison unit and a time data comparison unit, the execution module comprises a first control unit, a second control unit and a third control unit, the display module comprises an indicator lamp, an alarm and a display, the output end of the flowmeter is connected with the input end of an A/D converter, the output ends of the timer and the A/D converter are connected with the input end of a transmitter, the input end of the transmitter is connected with the input end of a central processing unit, the central processing unit is connected with a storage module, the central processing unit is connected with the data comparison module, the data comparison module is connected with a data feedback module, the data feedback module is connected with the central processing unit, the output end of the central processing unit is connected with the input end of the execution module, and the output end of the first control unit is connected with the input end, the output end of the control unit II is connected with the input end of the alarm, and the output end of the control unit III is connected with the input end of the display.
The specific steps of instrument calibration are as follows:
the method comprises the following steps: the flowmeter and the timer are subjected to zero calibration;
step two: and detecting whether the indicator light, the alarm and the display work normally or not.
The specific steps for setting the safety range value are as follows:
the method comprises the following steps: setting a region value of the safety flow in the storage module;
step two: and setting dangerous flow time interval values in the storage module, wherein the time interval is 15 s.
The specific steps of data acquisition and transmission are as follows:
the method comprises the following steps: the flow voltage signal measured by the flowmeter is converted into a flow digital signal through an A/D converter, and the flow digital signal is transmitted to a transmitter;
step two: the time digital signal of the timer is transmitted to the transmitter;
step three: the transmitter transmits the flow digital signal and the time digital signal to the central processing unit.
The specific steps of data storage and comparison are as follows:
the method comprises the following steps: the central processing unit stores the real-time flow numerical value and the corresponding real-time numerical value to the storage module;
step two: the central processing unit transmits the flow digital signal and the time digital signal to the data comparison module, and the data comparison module compares the real-time flow value and the real-time interval value of the flow digital signal and the time digital signal according to the region value and the dangerous flow time interval value of the safe flow set by the storage module;
step three: when the real-time flow value is not in the safe flow area value and the real-time interval value is larger than the dangerous flow time interval value, the data feedback module feeds back the dangerous signal.
The specific steps of command execution are as follows:
the method comprises the following steps: when the central processing unit receives the safety signal, the central processing unit transmits a safety command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a non-working state, a third control unit controls the display to be in a working state, and a safe real-time flow value and a corresponding real-time value are presented on the display;
step two: when the central processing unit receives a danger signal, the central processing unit transmits a danger command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a working state, the indicator light is normally on, the alarm gives an alarm, a display is controlled to be in a working state by a third control unit, and a dangerous real-time flow value and a corresponding real-time value are displayed on the display.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A monitoring system and a monitoring method based on a flowmeter comprise a monitoring system and a monitoring method, and are characterized in that: the monitoring system comprises a data acquisition module, an A/D converter, a transmitter, a central processing unit, a data comparison module, a data feedback module, a storage module, an execution module and a display module, and the monitoring method comprises the steps of instrument correction, safety range value setting, data acquisition and transmission, data storage and comparison and command execution.
2. The flowmeter-based monitoring system of claim 1, wherein: the data acquisition module is including flowmeter and time-recorder, the data contrast module is including flow data contrast unit and time data contrast unit, the execution module is including control unit one, control unit two and control unit three, the display module is including pilot lamp, alarm and display.
3. A flowmeter-based monitoring system as claimed in claim 2 wherein: the output of flowmeter is connected with the input of AD converter, the output of timer and AD converter all is connected with the input of transmitter, the input of transmitter is connected with central processing unit's input, central processing unit is connected with storage module, and central processing unit is connected with data contrast module, data contrast module is connected with data feedback module, data feedback module is connected with central processing unit, central processing unit's output is connected with execution module's input, the output of control unit one is connected with the input of pilot lamp, the output of control unit two is connected with the input of alarm, the output of control unit three is connected with the input of display.
4. The flowmeter-based monitoring method of claim 1, wherein: the specific steps of the instrument calibration are as follows:
the method comprises the following steps: the flowmeter and the timer are subjected to zero calibration;
step two: and detecting whether the indicator light, the alarm and the display work normally or not.
5. The flowmeter-based monitoring method of claim 1, wherein: the specific steps of the safety range value setting are as follows:
the method comprises the following steps: setting a region value of the safety flow in the storage module;
step two: and setting dangerous flow time interval values in the storage module, wherein the time interval is 5-15 s.
6. The flowmeter-based monitoring method of claim 1, wherein: the specific steps of data acquisition and transmission are as follows:
the method comprises the following steps: the flow voltage signal measured by the flowmeter is converted into a flow digital signal through an A/D converter, and the flow digital signal is transmitted to a transmitter;
step two: the time digital signal of the timer is transmitted to the transmitter;
step three: the transmitter transmits the flow digital signal and the time digital signal to the central processing unit.
7. The flowmeter-based monitoring method of claim 1, wherein: the specific steps of data storage and comparison are as follows:
the method comprises the following steps: the central processing unit stores the real-time flow numerical value and the corresponding real-time numerical value to the storage module;
step two: the central processing unit transmits the flow digital signal and the time digital signal to the data comparison module, and the data comparison module compares the real-time flow value and the real-time interval value of the flow digital signal and the time digital signal according to the region value and the dangerous flow time interval value of the safe flow set by the storage module;
step three: when the real-time flow value is not in the safe flow area value and the real-time interval value is larger than the dangerous flow time interval value, the data feedback module feeds back the dangerous signal.
8. The flowmeter-based monitoring method of claim 1, wherein: the specific steps of the command execution are as follows:
the method comprises the following steps: when the central processing unit receives the safety signal, the central processing unit transmits a safety command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a non-working state, a third control unit controls the display to be in a working state, and a safe real-time flow value and a corresponding real-time value are presented on the display;
step two: when the central processing unit receives a danger signal, the central processing unit transmits a danger command to the execution module, a first control unit and a second control unit in the execution module respectively control the indicator light and the alarm to be in a working state, the indicator light is normally on, the alarm gives an alarm, a display is controlled to be in a working state by a third control unit, and a dangerous real-time flow value and a corresponding real-time value are displayed on the display.
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Application publication date: 20201215 |