CN104635190A - Measuring chip anti-interference detection and error correction method and device - Google Patents
Measuring chip anti-interference detection and error correction method and device Download PDFInfo
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- CN104635190A CN104635190A CN201410851721.3A CN201410851721A CN104635190A CN 104635190 A CN104635190 A CN 104635190A CN 201410851721 A CN201410851721 A CN 201410851721A CN 104635190 A CN104635190 A CN 104635190A
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Abstract
The invention relates to a measuring chip anti-interference detection and error correction method, which is applied to a measuring chip provided with a correction table parameter verifier and a register. The method comprises the following steps: (1) reading a value of the correction table parameter verifier and the register, comparing the value with a backup value, if the read value is equal to the backup value, not processing the value, and entering the step (2) if the read value is equal to the backup value; (2) re-reading the value of the correction table parameter verifier and register, comparing the read value with the backup value, if the read value is equal to the backup value, not processing the read value, and if the read value is not equal to the backup value, entering the step (3); (3) comparing the two read values of the correction table parameter verifier and register, resetting the measuring chip if the two read values are equal to each other, and not processing the value if the two values are not equal. By adopting the method and device, the error of the measuring chip can be effectively and reliably detected, the error can be corrected, and the normal work of the measuring chip can be guaranteed.
Description
Technical field
The present invention relates to measuring instrument field, particularly the anti-interference detection of a kind of computation chip and error correction method and device.
Background technology
Metering is the important component part of a instrument, if computation chip makes a mistake, the function of measuring of instrument is just affected, and directly may cause the legal dispute between user and supplier.And detect computation chip mistake and error correction is the requisite part of instrument.Usually, various environmental interference is easily subject in the environment with the communication interface of computation chip communication, the value reading calibration parameter effect and the register of returning from computation chip is caused to be wrong, if go this time reset initialization computation chip just may cause the original normal computation chip discontinuous run, thus metrology and measurement is just inaccurate.
Summary of the invention
Fundamental purpose of the present invention is to overcome above-mentioned defect of the prior art, proposes a kind ofly can detect computation chip mistake effectively reliably and carry out the anti-interference detection of computation chip of correction process and error correction method and device.
The present invention adopts following technical scheme:
A kind of anti-interference detection of computation chip and error correction method, the computation chip of calibration parameter verification and register is provided with in being applied to, this computation chip backs up the value of this calibration parameter verification and register when calibration completes, and it is characterized in that: comprise the steps:
1) read the value of calibration parameter verification and register, and compare with the value of backup, if equal, then do not deal with, if unequal, then enter step 2);
2) again read the value of calibration parameter verification and register, compare with the value of backup, if equal, then do not deal with, if unequal, then enter step 3);
3) by twi-read to calibration parameter verification and the value of register compare, if equal, then reset this computation chip, if unequal, then do not deal with.
Preferably, described computation chip is ATT7053B computation chip.
A kind of anti-interference detection of computation chip and error correction device, is characterized in that: comprise
Reading device, for reading the value of calibration parameter verification and register;
Comparison means, whether equal with the value of backup for the value comparing calibration parameter verification and the register read, and control reading device again reads and compares when not waiting;
Judge treating apparatus, for the calibration parameter verification that arrives at twi-read and register value all with backup value not etc. time, judge that whether two sub-values equal, and when equal, start resetting means;
Resetting means, resets for controlling computation chip.
From the above-mentioned description of this invention, compared with prior art, the present invention has following beneficial effect:
Method and apparatus of the present invention, by reading the value of calibration parameter verification and register, and compares with backup value, if twi-read and more unequal, and the value of twi-read is equal, illustrates it is not be subject to environmental factor to disturb, then initialization computation chip.Method and apparatus of the present invention can effectively reliably detect computation chip mistake and carry out correction process, ensures that computation chip normally works.
Accompanying drawing explanation
Fig. 1 is the inventive method process flow diagram;
Fig. 2 is apparatus of the present invention schematic diagram.
Embodiment
Below by way of embodiment, the invention will be further described.
With reference to Fig. 1, the anti-interference detection of a kind of computation chip and error correction method, be provided with the computation chip of calibration parameter verification and register in being applied to, such as ATT7053B computation chip.There are a calibration parameter effect and register in this computation chip inside, if this computation chip is because certain reason causes the change of calibration parameter, then this register value also and then change, so the value of this calibration parameter effect and register will carry out carrying out Real-Time Monitoring comparison when backup facilitates instrument to run when carrying out calibration and completing by one piece of instrument.Method of the present invention comprises the steps:
1) value reading calibration parameter verification and register is M1, and compares with the value N of backup, if equal, does not then deal with, if unequal, then enters step 2);
2) value again reading calibration parameter verification and register is M2, compares, if equal, then do not deal with, if unequal, then enter step 3 with the value N of backup);
3) by twi-read to calibration parameter verification and the value of register compare, if equal, the change of calibration parameter is described, then this computation chip of reset initialization, if unequal, represent that communication port may be interfered (as electromagnetic interference (EMI), the interference of high/low temperature humidity etc.), then do not deal with.
When the calibration parameter that the present invention is based on computation chip sends and changes, the value of calibration parameter verification and register also can ensue change.
With reference to Fig. 2, the present invention also proposes the anti-interference detection of a kind of computation chip and error correction device, comprises
Reading device, for reading the value of calibration parameter verification and register.
Whether comparison means, is connected with reading device, equal with the value of backup for the value comparing calibration parameter verification and the register read, and control reading device again reads and compares when unequal.
Judge treating apparatus, be connected with comparison means, for the calibration parameter verification that arrives at twi-read and register value all with backup value not etc. time, judge that whether two sub-values equal, and start resetting means when equal.
Resetting means, and judges that treating apparatus is connected, and resets for controlling computation chip.
Above are only the specific embodiment of the present invention, but design concept of the present invention is not limited thereto, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should belong to the behavior of invading scope.
Claims (3)
1. the anti-interference detection of computation chip and error correction method, the computation chip of calibration parameter verification and register is provided with in being applied to, this computation chip backs up the value of this calibration parameter verification and register when calibration completes, and it is characterized in that: comprise the steps:
1) read the value of calibration parameter verification and register, and compare with the value of backup, if equal, then do not deal with, if unequal, then enter step 2);
2) again read the value of calibration parameter verification and register, compare with the value of backup, if equal, then do not deal with, if unequal, then enter step 3);
3) by twi-read to calibration parameter verification and the value of register compare, if equal, then reset this computation chip, if unequal, then do not deal with.
2. the anti-interference detection of a kind of computation chip as claimed in claim 1 and error correction method, is characterized in that: described computation chip is ATT7053B computation chip.
3. the anti-interference detection of computation chip and an error correction device, is characterized in that: comprise
Reading device, for reading the value of calibration parameter verification and register;
Comparison means, whether equal with the value of backup for the value comparing calibration parameter verification and the register read, and control reading device again reads and compares when not waiting;
Judge treating apparatus, for the calibration parameter verification that arrives at twi-read and register value all with backup value not etc. time, judge that whether two sub-values equal, and when equal, start resetting means;
Resetting means, resets for controlling computation chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410851721.3A CN104635190B (en) | 2014-12-31 | 2014-12-31 | Measuring chip anti-interference detection and error correction method and device |
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| CN201410851721.3A CN104635190B (en) | 2014-12-31 | 2014-12-31 | Measuring chip anti-interference detection and error correction method and device |
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| CN104635190A true CN104635190A (en) | 2015-05-20 |
| CN104635190B CN104635190B (en) | 2017-05-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106502811A (en) * | 2016-10-12 | 2017-03-15 | 北京精密机电控制设备研究所 | A kind of 1553B bus communications fault handling method |
| CN110488118A (en) * | 2019-08-06 | 2019-11-22 | 上海移为通信技术股份有限公司 | The anti-interference test method and its system of power supply chip |
| CN110763890A (en) * | 2019-09-29 | 2020-02-07 | 许昌许继软件技术有限公司 | Metering device |
| CN113406483A (en) * | 2021-08-17 | 2021-09-17 | 湖南省计量检测研究院 | Anti-interference detection system of metering chip and computer readable storage medium |
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| CN104635190B (en) | 2017-05-03 |
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Denomination of invention: A measurement and error correction device and method Effective date of registration: 20220509 Granted publication date: 20170503 Pledgee: Fujian Zhangzhou Rural Commercial Bank Co.,Ltd. Xikeng sub branch Pledgor: ZHANGZHOU CANNET ELECTRICAL APPLIANCE Co.,Ltd. Registration number: Y2022980005244 |
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