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Electromagnetic water meter magnetic field anomaly detection and error compensation method and system

An error compensation and anomaly detection technology, applied in the application of electromagnetic flowmeter to detect fluid flow, volume/mass flow generated by electromagnetic effect, measurement device, etc. metering and other issues

Active Publication Date: 2021-09-03
上海锐铼水务科技有限公司
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Problems solved by technology

[0003] In actual use, there may be water users who use strong magnets to interfere with the normal measurement of the electromagnetic water meter, resulting in deviations in the measurement data of the electromagnetic water meter. If this defect of the electromagnetic water meter is discovered and utilized by some water users, it will cause electromagnetic water meters The actual measured flow rate is smaller than the actual flow rate, which will cause water loss to the water company

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  • Electromagnetic water meter magnetic field anomaly detection and error compensation method and system
  • Electromagnetic water meter magnetic field anomaly detection and error compensation method and system
  • Electromagnetic water meter magnetic field anomaly detection and error compensation method and system

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Embodiment Construction

[0034] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only to further illustrate the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0036] The description in this part is only for several typical embodiments, and the present invention is not limited to the scope of the description of the embodiments. The mutual replacement of the same or similar prior art means and some technical features in the embodiments is also within the scope of the description and protection of the present invention.

[0037] The invention discloses a method for abnormal detection and error compensation of the magnetic field of an electromagnetic...

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Abstract

The invention discloses an electromagnetic water meter magnetic field anomaly detection and error compensation method and system. The method comprises the following steps of: excitation current stabilization time is detected; the error of the flow measurement value of an electromagnetic water meter caused by an abnormal magnetic field according to an algorithm for performing deviation compensation on the flow measurement value of the electromagnetic water meter is corrected according to the deviation of the detected excitation current stabilization time; and an alarm icon is displayed on a display screen of the electromagnetic water meter, and alarm information is sent to a user system platform through a data remote transmission module of the electromagnetic water meter. Strong magnetic field interference outside an electromagnetic water meter sensor can be regularly detected, and errors of flow measurement values of the electromagnetic water meter caused by magnetic field abnormity can be corrected, so that the accuracy of the flow measurement values of the electromagnetic water meter is improved when the electromagnetic water meter is influenced by an external strong magnetic field; and meanwhile, a water user can be prevented from cheating by using the external strong magnetic field.

Description

technical field [0001] The invention belongs to the technical field of water meters, and relates to an electromagnetic water meter, in particular to a method and system for detecting magnetic field anomalies and error compensation of the electromagnetic water meter. Background technique [0002] Due to its high measurement accuracy, long-term stable and reliable operation, and small pressure loss, the electromagnetic water meter can directly transmit the measurement data to the system platform through communication. With the country's policy of vigorously promoting smart water affairs, it has been recognized by the water supply company and used to replace mechanical Water meters are used for water consumption trade settlement of water users. [0003] In actual use, there may be water users who use strong magnets to interfere with the normal measurement of the electromagnetic water meter, resulting in deviations in the measurement data of the electromagnetic water meter. If t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00G01F1/58
CPCG01F1/58
Inventor 李繁枝郭方恩王鑫
Owner 上海锐铼水务科技有限公司
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