CN109631975A - A kind of automatic zero point track algorithm for inhibiting sensor zero to float - Google Patents
A kind of automatic zero point track algorithm for inhibiting sensor zero to float Download PDFInfo
- Publication number
- CN109631975A CN109631975A CN201811648161.6A CN201811648161A CN109631975A CN 109631975 A CN109631975 A CN 109631975A CN 201811648161 A CN201811648161 A CN 201811648161A CN 109631975 A CN109631975 A CN 109631975A
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- China
- Prior art keywords
- zero
- piezoelectric transducer
- value
- current state
- automatic
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Abstract
The present invention provides a kind of automatic zero point track algorithms that inhibition sensor zero floats, comprising the following steps: step 1, acquires the real-time AD value of the piezoelectric transducer of pressure point structure and does data processing, judge the current state of piezoelectric transducer；Step 2, judge whether piezoelectric transducer current state duration is more than predetermined time value；Step 3, if current state duration is more than predetermined time value, Zero-tracking program is triggered, current zero point value is calculated and is modified and stores, otherwise return step 1.The present invention can be realized the adaptive of null offset, automatic to start Zero-tracking program, eliminates the influence that null offset differentiates sensor and optimizes the performance of piezoelectric transducer to realize accurately identifying for wheel shaft.
Description
Technical field
The present invention relates to field of sensor calibration, specifically, relate to a kind of automatic zero point that inhibition sensor zero floats
Track algorithm.
Background technique
Piezoelectric type Wheel axle identifier during use, due to by temperature change, the shadow of the factors such as supply voltage shakiness
It rings, " zero floats " can be inevitably generated, to influence the accuracy of Wheel axle identifier.In the prior art, zero floats after generation, can be quickly
The reason of finding out zero and float, and the method for inhibiting drift is found, it is still, few in the prior art to carry out Zero-tracking automatically
Method.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The purpose of the present invention is in view of the deficiencies of the prior art, to provide a kind of automatic zero point that inhibition sensor zero floats
Track algorithm.
To achieve the goals above, the technical scheme adopted by the invention is that: it is a kind of to inhibit the auto zero that floats of sensor zero
Point track algorithm, comprising the following steps: step 1, acquires the real-time AD value of the piezoelectric transducer of pressure point structure and do data processing,
Judge the current state of piezoelectric transducer；Step 2, judge whether piezoelectric transducer current state duration is more than predetermined
Time value；Step 3, if current state duration is more than predetermined time value, Zero-tracking program is triggered, calculating is worked as
Leading zero point value is modified and stores, otherwise return step 1.
The present invention has substantive distinguishing features outstanding and significant progress compared with the prior art, specifically, energy of the present invention
Enough realize the adaptive of null offset, it is automatic to start Zero-tracking program, the influence that null offset differentiates sensor is eliminated, from
And realize accurately identifying for wheel shaft, optimize the performance of piezoelectric transducer.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
As shown in Fig. 1, a kind of automatic zero point track algorithm for inhibiting sensor zero to float, comprising the following steps:
Step 1, it acquires the real-time AD value of the piezoelectric transducer of pressure point structure and does data processing, judge the current of piezoelectric transducer
State is stress state or idle state；
Step 2, judge whether piezoelectric transducer current state duration is more than predetermined time value；
Step 3, if current state duration is more than predetermined time value, Zero-tracking program is triggered, is calculated current
Zero point value is modified and stores, otherwise return step 1.
The present invention can be realized the adaptive of null offset, automatic to start Zero-tracking program, eliminate null offset to biography
The influence that sensor differentiates optimizes the performance of piezoelectric transducer to realize accurately identifying for wheel shaft；
The present invention is decided whether by judging whether piezoelectric transducer current state duration is more than predetermined time value
Start Zero-tracking program, can be effectively reduced null offset caused by the live variable quantity such as temperature, time, electromagnetic environment to pressure
The influence of electric transducer data, to improve the adaptability of piezoelectric transducer and extend service life, with increase temperature
The form of the hardware such as compensation circuit is compared, the time needed for having saved the cost for purchasing hardware and change circuit, more economically
Efficiently.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (2)
1. a kind of automatic zero point track algorithm for inhibiting sensor zero to float, which comprises the following steps:
Step 1, it acquires the real-time AD value of the piezoelectric transducer of pressure point structure and does data processing, judge the current of piezoelectric transducer
State；
Step 2, judge whether piezoelectric transducer current state duration is more than predetermined time value；
Step 3, if current state duration is more than predetermined time value, Zero-tracking program is triggered, is calculated current
Zero point value is modified and stores, otherwise return step 1.
2. the automatic zero point track algorithm according to claim 1 for inhibiting sensor zero to float, it is characterised in that: the piezoelectricity
The current state of sensor includes stress state and idle state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648161.6A CN109631975A (en) | 2018-12-30 | 2018-12-30 | A kind of automatic zero point track algorithm for inhibiting sensor zero to float |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648161.6A CN109631975A (en) | 2018-12-30 | 2018-12-30 | A kind of automatic zero point track algorithm for inhibiting sensor zero to float |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109631975A true CN109631975A (en) | 2019-04-16 |
Family
ID=66055253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811648161.6A Pending CN109631975A (en) | 2018-12-30 | 2018-12-30 | A kind of automatic zero point track algorithm for inhibiting sensor zero to float |
Country Status (1)
| Country | Link |
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| CN (1) | CN109631975A (en) |
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| CN108489589A (en) * | 2018-03-15 | 2018-09-04 | 天津光电丰泰科技有限公司 | A kind of drift correction method based on weighing sensor |
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2018
- 2018-12-30 CN CN201811648161.6A patent/CN109631975A/en active Pending
Patent Citations (11)
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|---|---|---|---|---|
| JPH08285667A (en) * | 1995-04-11 | 1996-11-01 | Yazaki Corp | Loading weight measuring device |
| CN101087993A (en) * | 2004-12-23 | 2007-12-12 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Method for monitoring sensor function |
| CN101103260A (en) * | 2004-12-30 | 2008-01-09 | Abb股份有限公司 | A method and a system for adaptive compensation of the temperature drift of a sensor |
| CN1884985A (en) * | 2005-06-21 | 2006-12-27 | 梅特勒－托莱多公开股份有限公司 | Method for adaptively correcting drift conditions in a force measuring device and force measuring device for carrying out the method. |
| US20070010960A1 (en) * | 2005-06-21 | 2007-01-11 | Mettler-Toledo Ag | Method for the adaptive correction of drift phenomena in a force-measuring device, and force-measuring device |
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| CN102163370A (en) * | 2011-04-29 | 2011-08-24 | 宝鸡四维衡器有限公司 | Truck scale sensor for detecting quantity of automobile tires |
| CN103364625A (en) * | 2012-04-11 | 2013-10-23 | 哈尔滨佳云科技有限公司 | Automatic online tracking method for sensor zero drift |
| CN102636614A (en) * | 2012-04-25 | 2012-08-15 | 梅思安(中国)安全设备有限公司 | Zero drift correction method of solid and portable gas detector |
| CN104075770A (en) * | 2014-06-24 | 2014-10-01 | 湖南大学 | Electronic analytical balance zero tracking device and method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |