CN110672249A - Pressure sensor with multiple pressure measurement units and data processing method thereof - Google Patents
Pressure sensor with multiple pressure measurement units and data processing method thereof Download PDFInfo
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
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Abstract
The invention discloses a pressure sensor with a plurality of pressure measurement units and a data processing method thereof, relating to the technical field of pressure sensors, wherein the pressure sensor comprises: the pressure measuring units respectively convert the pressure to be measured into electric signals; the input end of the signal collector is connected with the output end of the pressure measuring unit and is used for collecting the electric signals converted by the pressure measuring units; and the input end of the signal processor is connected with the output end of the signal collector, and the signal processor processes and outputs a plurality of electric signals. The technical problems that in the prior art, because a pressure sensor only has one pressure measurement unit, if the parameter of the pressure measurement unit deviates, the pressure measurement result is inaccurate, the precision is low, and the reliability is poor are solved. Through setting up a plurality of pressure measurement units, reached and improved measuring result precision, the error is little, the high technological effect of reliability.
Description
Technical Field
The invention relates to the technical field of pressure sensors, in particular to a pressure sensor with a plurality of pressure measurement units and a data processing method thereof.
Background
Generally, a pressure sensor/transmitter has only one pressure measuring unit, so that the precision, stability, reliability, temperature coefficient, time drift and other parameters of the pressure sensor/transmitter are completely dependent on the precision, stability, reliability, temperature coefficient, time drift and other parameters of the installed single pressure measuring unit.
However, in the process of implementing the technical solution in the embodiment of the present invention, the inventor of the present invention finds that the above prior art has at least the following technical problems:
in the prior art, the pressure sensor is only provided with one pressure measurement unit, and if the parameters of the pressure measurement unit deviate, the technical problems of inaccurate pressure measurement result, low precision and poor reliability are directly caused.
Disclosure of Invention
The embodiment of the invention provides a pressure sensor with a plurality of pressure measurement units and a data processing method thereof, which are used for solving the technical problems that in the prior art, because the pressure sensor only has one pressure measurement unit, if the parameter of the pressure measurement unit has deviation, the pressure measurement result is inaccurate, the precision is low and the reliability is poor. Through setting up a plurality of pressure measurement units, reached and improved measuring result precision, the error is little, the high technological effect of reliability.
In order to solve the above problem, an embodiment of the present invention provides a pressure sensor having a plurality of pressure measurement units, the pressure sensor including: the pressure measuring units respectively convert the pressure to be measured into electric signals; the input end of the signal collector is connected with the output end of the pressure measuring unit and is used for collecting the electric signals converted by the pressure measuring units; and the input end of the signal processor is connected with the output end of the signal collector, and the signal processor processes and outputs a plurality of electric signals.
Preferably, the number of the pressure measurement units is N, wherein N is a positive integer and is more than or equal to 2 and less than or equal to 10.
Preferably, the signal collector is a multi-channel signal collector.
In another aspect, an embodiment of the present invention further provides a data processing method for a pressure sensor having a plurality of pressure measurement units, where the method includes: obtaining N pressure data, wherein N is a positive integer and is more than or equal to 2 and less than or equal to 10; obtaining a maximum of the N pressure data; obtaining a minimum value of the N pressure data; removing the maximum value and the minimum value from the N pressure data to obtain N-2 pressure data; and processing the N-2 pressure data to obtain final pressure data.
Preferably, the obtaining a maximum value of the N pressure data includes: obtaining an mth pressure data; judging whether the mth pressure data is larger than the N-1 pressure data or not; if the mth pressure data is greater than the N-1 pressure data, the mth pressure data is the maximum of the N pressure data.
Preferably, the obtaining a minimum value of the N pressure data includes: obtaining nth pressure data; judging whether the nth pressure data is smaller than the N-1 pressure data or not; if the nth pressure data is less than the N-1 pressure data, the nth pressure data is the minimum value of the N pressure data.
Preferably, the processing the N-2 pressure data to obtain final pressure data includes: obtaining the weight values of the N-2 pressure data; obtaining a weighted average value of the N-2 pressure data according to the weight values of the N-2 pressure data; final pressure data is obtained.
Preferably, when N is 2, the final pressure data is an arithmetic average of the N pressure data.
Preferably, when N is 3, the final pressure data is an arithmetic average of the N pressure data.
One or more technical solutions in the embodiments of the present invention at least have one or more of the following technical effects:
the embodiment of the invention provides a pressure sensor with a plurality of pressure measurement units and a data processing method thereof, wherein the pressure sensor comprises: the pressure measuring units respectively convert the pressure to be measured into electric signals; the input end of the signal collector is connected with the output end of the pressure measuring unit and is used for collecting the electric signals converted by the pressure measuring units; and the input end of the signal processor is connected with the output end of the signal collector, and the signal processor processes and outputs a plurality of electric signals. Through setting up a plurality of pressure measurement unit has solved among the prior art because pressure sensor only has a pressure measurement unit, if this pressure measurement unit's parameter goes wrong to directly lead to pressure measurement result inaccurate, precision low, the poor technical problem of reliability, further reached and improved measuring result precision, the error is little, the high technological effect of reliability.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Fig. 1 is a schematic structural diagram of a pressure sensor having a plurality of pressure measurement units according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a data processing method of a pressure sensor having a plurality of pressure measurement units according to an embodiment of the present invention.
Description of reference numerals: the pressure measuring unit 1, the signal collector 2 and the signal processor 3.
Detailed Description
The embodiment of the invention provides a pressure sensor with a plurality of pressure measurement units and a data processing method thereof, which solve the technical problems that in the prior art, because the pressure sensor only has one pressure measurement unit, if the parameter of the pressure measurement unit has deviation, the pressure measurement result is inaccurate, the precision is low and the reliability is poor.
In order to solve the technical problems, the technical scheme provided by the invention has the following general idea: the pressure measuring units respectively convert the pressure to be measured into electric signals; the input end of the signal collector is connected with the output end of the pressure measuring unit and is used for collecting the electric signals converted by the pressure measuring units; and the input end of the signal processor is connected with the output end of the signal collector, and the signal processor processes and outputs a plurality of electric signals. Through setting up a plurality of pressure measurement unit, and then reached and improved measuring result precision, the error is little, the high technological effect of reliability.
The technical solutions of the present invention are described in detail below with reference to the drawings and the specific embodiments, and it should be understood that the specific features in the embodiments and the embodiments of the present invention are not intended to limit the technical solutions of the present invention, but may be combined with each other without conflict.
Example one
An embodiment of the present invention provides a pressure sensor having a plurality of pressure measurement units, referring to fig. 1, the pressure sensor includes:
the pressure measuring units 1 respectively convert the pressure to be measured into electric signals;
the input end of the signal collector 2 is connected with the output end of the pressure measuring unit 1, and the signal collector collects a plurality of electric signals converted by the pressure measuring unit 1;
and the input end of the signal processor 3 is connected with the output end of the signal collector 2, and the signal processor processes and outputs a plurality of electric signals.
Furthermore, the number of the pressure measurement units 1 is N, wherein N is a positive integer, and N is more than or equal to 2 and less than or equal to 10.
Further, the signal collector 2 is a multi-channel signal collector.
Specifically, the pressure sensor with multiple pressure measurement units provided by the embodiment of the present invention integrates multiple pressure measurement units 1, so that the parameters of the pressure sensor, such as precision, stability, reliability, temperature coefficient, time drift, etc., depend on the integrated parameters of the multiple pressure measurement units 1, such as comprehensive precision, stability, reliability, temperature coefficient, time drift, etc., and the parameters of the pressure sensor, such as measurement precision, stability, reliability, temperature coefficient, time drift, etc., are not directly affected by the precision of one or some pressure measurement units 1 being reduced or inaccurate. As shown in fig. 1, the pressure sensor includes a plurality of pressure measurement units 1, a signal collector 2 and a signal processor 3, wherein the number of the pressure measurement units 1 is N, where N is a positive integer and N is greater than or equal to 2 and less than or equal to 10, which overcomes the problems of low precision, large error and poor reliability of a pressure sensor with only one pressure measurement unit, and the specific working principle of the pressure sensor in the embodiment of the present invention is as follows: firstly, a plurality of pressure measurement unit 1 converts the pressure that awaits measuring into a plurality of signal of telecommunication respectively, then right through multichannel signal collector 2 a plurality of signal of telecommunication gathers, signal collector 2 will gather again a plurality of signal of telecommunication send to signal processor 3, by signal processor 3 is right a plurality of signal of telecommunication carry out the average processing of weighting after to export as final pressure measurement result, further reached improvement measuring result precision, error are little, the technological effect that the reliability is high.
Example two
Fig. 2 is a schematic flow chart of a data processing method of a pressure sensor having a plurality of pressure measurement units according to an embodiment of the present invention, as shown in fig. 2, the method includes:
step 110: obtaining N pressure data, wherein N is a positive integer and is more than or equal to 2 and less than or equal to 10;
step 120: obtaining a maximum of the N pressure data;
step 130: obtaining a minimum value of the N pressure data;
step 140: removing the maximum value and the minimum value from the N pressure data to obtain N-2 pressure data;
step 150: and processing the N-2 pressure data to obtain final pressure data.
Specifically, in the embodiment of the present invention, 1 to N pressure data are measured by a plurality of pressure measurement units, where N is a positive integer, and 2 ≦ N ≦ 10, where each pressure measurement unit 1 corresponds to one pressure data, and after obtaining the N pressure data, the signal processor 3 performs a series of processing on the N pressure data, so as to obtain final pressure measurement data. The specific data processing method comprises the following steps: after the N pressure data are obtained, respectively obtaining the maximum value and the minimum value of the N pressure data, then removing the maximum value and the minimum value from the N pressure data, aiming at eliminating abnormal values in the N pressure data to ensure the accuracy of a measuring result, and then carrying out weighted average on the remaining N-2 pressure data to obtain final pressure data, thereby achieving the technical effects of improving the measuring accuracy of the pressure sensor, having small error and high reliability.
Further, the obtaining a maximum value of the N pressure data includes: obtaining an mth pressure data; judging whether the mth pressure data is larger than the N-1 pressure data or not; if the mth pressure data is greater than the N-1 pressure data, the mth pressure data is the maximum of the N pressure data.
Specifically, 1 st pressure data is obtained, then the 1 st pressure data is sequentially compared with the remaining N-1 pressure data, if the 1 st pressure data is greater than the N-1 pressure data, the 1 st pressure data is the maximum value of the N pressure data, if one pressure data in the N-1 pressure data is greater than the 1 st pressure data, the pressure data greater than the 1 st pressure data is continuously sequentially compared with the remaining N-2 pressure data until the m th pressure data is greater than the N-1 pressure data, and the m th pressure data is the maximum value of the N pressure data, thereby achieving the technical effect of obtaining the maximum value of the N pressure data.
Further, the obtaining a minimum value of the N pressure data includes: obtaining nth pressure data; judging whether the nth pressure data is smaller than the N-1 pressure data or not; if the nth pressure data is less than the N-1 pressure data, the nth pressure data is the minimum value of the N pressure data.
Specifically, 1 st pressure data is obtained, then the 1 st pressure data is sequentially compared with the remaining N-1 pressure data, if the 1 st pressure data is smaller than the N-1 pressure data, the 1 st pressure data is the minimum value of the N pressure data, if one pressure data in the N-1 pressure data is smaller than the 1 st pressure data, the pressure data smaller than the 1 st pressure data is continuously compared with the remaining N-2 pressure data in sequence until the m th pressure data is smaller than the N-1 pressure data, and the m th pressure data is the minimum value of the N pressure data, thereby achieving the technical effect of obtaining the minimum value of the N pressure data.
Further, the processing the N-2 pressure data to obtain final pressure data includes: obtaining the weight values of the N-2 pressure data; obtaining a weighted average value of the N-2 pressure data according to the weight values of the N-2 pressure data; final pressure data is obtained.
Specifically, after the maximum value and the minimum value are removed from the N pressure data, the rest N-2 pressure data are subjected to weighted average processing, so that final pressure data is obtained, and thus the technical effects of improving the measurement accuracy and reducing errors are achieved.
Further, when N is 2, the final pressure data is an arithmetic average of the N pressure data.
Specifically, when N is 2, that is, 2 pressure measurement units are integrated in the pressure sensor, in this case, 2 pieces of pressure data measured by the 2 pressure measurement units are subjected to arithmetic mean processing, and the arithmetic mean thereof is the final pressure data.
Further, when N is 3, the final pressure data is an arithmetic average of the N pressure data.
Specifically, when N is 3, that is, 3 pressure measurement units are integrated in the pressure sensor, in this case, the arithmetic mean processing is performed on the 3 pressure data measured by the 3 pressure measurement units, and the arithmetic mean is the final pressure data.
One or more technical solutions in the embodiments of the present invention at least have one or more of the following technical effects:
the embodiment of the invention provides a pressure sensor with a plurality of pressure measurement units and a data processing method thereof, wherein the pressure sensor comprises: the pressure measuring units respectively convert the pressure to be measured into electric signals; the input end of the signal collector is connected with the output end of the pressure measuring unit and is used for collecting the electric signals converted by the pressure measuring units; and the input end of the signal processor is connected with the output end of the signal collector, and the signal processor processes and outputs a plurality of electric signals. Through setting up a plurality of pressure measurement unit has solved among the prior art because pressure sensor only has a pressure measurement unit, if this pressure measurement unit's parameter goes wrong to directly lead to pressure measurement result inaccurate, precision low, the poor technical problem of reliability, further reached and improved measuring result precision, the error is little, the high technological effect of reliability.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (9)
1. A pressure sensor having a plurality of pressure measurement cells, the pressure sensor comprising:
the pressure measuring units respectively convert the pressure to be measured into electric signals;
the input end of the signal collector is connected with the output end of the pressure measuring unit and is used for collecting the electric signals converted by the pressure measuring units;
and the input end of the signal processor is connected with the output end of the signal collector, and the signal processor processes and outputs a plurality of electric signals.
2. The pressure sensor of claim 1, wherein the number of pressure measurement cells is N, wherein N is a positive integer and 2 ≦ N ≦ 10.
3. The pressure sensor of claim 1, wherein the signal collector is a multi-channel signal collector.
4. A method of processing data for a pressure sensor having a plurality of pressure measurement cells, the method comprising:
obtaining N pressure data, wherein N is a positive integer and is more than or equal to 2 and less than or equal to 10;
obtaining a maximum of the N pressure data;
obtaining a minimum value of the N pressure data;
removing the maximum value and the minimum value from the N pressure data to obtain N-2 pressure data;
and processing the N-2 pressure data to obtain final pressure data.
5. The method of claim 4, wherein said obtaining a maximum of said N pressure data comprises:
obtaining an mth pressure data;
judging whether the mth pressure data is larger than the N-1 pressure data or not;
if the mth pressure data is greater than the N-1 pressure data, the mth pressure data is the maximum of the N pressure data.
6. The method of claim 4, wherein said obtaining a minimum of said N pressure data comprises:
obtaining nth pressure data;
judging whether the nth pressure data is smaller than the N-1 pressure data or not;
if the nth pressure data is less than the N-1 pressure data, the nth pressure data is the minimum value of the N pressure data.
7. The method of claim 4, wherein said processing said N-2 pressure data to obtain final pressure data comprises:
obtaining the weight values of the N-2 pressure data;
obtaining a weighted average value of the N-2 pressure data according to the weight values of the N-2 pressure data;
final pressure data is obtained.
8. The method of claim 4, wherein the final pressure data is an arithmetic mean of the N pressure data when N-2.
9. The method of claim 4, wherein the final pressure data is an arithmetic mean of the N pressure data when N-3.
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| CN113567029A (en) * | 2021-09-26 | 2021-10-29 | 江西经纬科技发展有限公司 | Pressure data acquisition system |
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