CN104502883A - Method for detecting and solving anomaly of metering chips - Google Patents
Method for detecting and solving anomaly of metering chips Download PDFInfo
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- CN104502883A CN104502883A CN201410841959.8A CN201410841959A CN104502883A CN 104502883 A CN104502883 A CN 104502883A CN 201410841959 A CN201410841959 A CN 201410841959A CN 104502883 A CN104502883 A CN 104502883A
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Abstract
The invention discloses a method for detecting and solving anomaly of metering chips. The method includes steps of (1), powering up the metering chips and writing standard parameters into the metering chips; (2), keeping time periods N; (3), carrying out detection, to be more specific, a, detecting the frequencies of power grids, b, detecting voltages of the power grids, and c, detecting power; (4), enabling a chip managing MCU (micro-control unit) to read parameters of the metering chips when the time periods N are up, returning to the step (2) if the parameters are consistent with the standard parameters, enabling the chip managing MCU to initialize the metering chips if the parameters are not consistent with the standard parameters and returning to the step (2). The method has the advantages that the anomaly of the metering chips can be detected by the aid of the method, the metering chips can be recovered by the aid of the method, and accordingly the reliability and the stability of meters can be effectively improved.
Description
Technical field
The present invention relates to electric energy meter technical field, is specifically a kind of abnormality detection and solution of computation chip.
Background technology
Computation chip is a kind of high-precision electric energy meter electric energy metering module.When computation chip receives extraneous interference, the problems such as computation chip reset, deadlock can be caused, and then occur variable less than normal or complete non-metering situation bigger than normal for a long time, affect the normal metering of electric energy.And this fault is repaired by software process.Therefore, for these reasons, urgently need a kind of abnormality detection and solution of computation chip, the method can detect computation chip exception and can recover, thus effectively can improve reliability and the stability of table meter, to solve the problem.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of abnormality detection and solution of computation chip, and the method can detect computation chip exception and can recover, thus effectively can improve reliability and the stability of table meter.
Technical scheme of the present invention is, provides a kind of abnormality detection and solution of computation chip, comprises the following steps:
(1), electric energy meter powers on, and canonical parameter writes in computation chip by managing chip MCU;
(2), N starts timing the time period;
(3), what time following computation chip detect:
A, detection of grid frequency, if the mains frequency continuous N time that computation chip detects detects the certain value L deflecting away from standard frequency, perform step and then judge that computation chip metering is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d);
B, detection of grid voltage, if the input voltage that the input voltage that computation chip detects detects lower than electric energy meter trigger voltage or computation chip is higher than the maximum rated voltage of electric energy meter, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d);
C, detection power, if the long-time K of computation chip the maximum rated power of power higher than electric energy meter detected, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d);
D, return perform step (3);
(4), time period N timing time arrives, and managing chip MCU reads the parameter of computation chip, if this parameter is consistent with canonical parameter, then returns step (2); Otherwise managing chip MCU, by computation chip initialization, returns step (2) simultaneously;
Abnormality detection and the solution of described computation chip are further comprising the steps of: (5) if computation chip continuously long-time T detect that metering power is zero, then judge that computation chip is abnormal, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization.
Described time period N is 1 minute.
It is for described M time 3 times; Described certain value L is 10%.
Described long-time K is 5 minutes.
Described long-time T is 48 hours.
After adopting above method, the present invention compared with prior art, has the following advantages:
The abnormality detection of computation chip of the present invention and solution are by the data of real-time detection of grid frequency, voltage, power, by judging that the method for data exception judges that whether computation chip is abnormal, whether the method simultaneously also by reading computation chip intrinsic parameter detects computation chip abnormal, if find above-mentioned exception, by initialization (power down, re-power, re-write data by MCU) method solve.And when computation chip receives extraneous interference, any change can be monitored by above-mentioned detection and make computation chip initialization, thus avoid occurring variable less than normal or complete non-metering situation bigger than normal for a long time, and then ensure that the normal metering of electric energy.
As improvement, abnormality detection and the solution of described computation chip are further comprising the steps of: (5) if computation chip continuously long-time T detect that metering power is zero, then judge that computation chip is abnormal, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization.This step can solve computation chip and lockedly cause long-time non-metering situation because receiving interference.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
The abnormality detection of a kind of computation chip of the present invention and solution, comprise the following steps:
(1), electric energy meter powers on, and canonical parameter writes in computation chip by managing chip MCU, and this canonical parameter is the preset parameter of electric energy meter, and it obtains through overtesting;
(2), time period N starts timing, is generally one minute;
(3), what time following computation chip detect:
A, detection of grid frequency, if the mains frequency continuous N time that computation chip detects detects the certain value L deflecting away from standard frequency, perform step and then judge that computation chip metering is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d); If mains frequency is 50Hz, the value so deflected away from is 5Hz, as long as namely mains frequency exceeds 45Hz-55Hz, namely sentences exception.
B, detection of grid voltage, if the input voltage that the input voltage that computation chip detects detects lower than electric energy meter trigger voltage or computation chip is higher than the maximum rated voltage of electric energy meter, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d); General, be 220V at line voltage, as long as so line voltage exceeds 110V-440V, namely sentence exception.
C, detection power, if the long-time K of computation chip the maximum rated power of power higher than electric energy meter detected, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d); Maximum rated power can mark on electric energy meter
D, return perform step (3); Namely be the data of monitoring mains frequency, line voltage and power continuously, i.e. Real-Time Monitoring in time period N.
(4), time period N timing time arrives, and managing chip MCU reads the parameter of computation chip, if this parameter is consistent with canonical parameter, then returns step (2); Otherwise managing chip MCU, by computation chip initialization, returns step (2) simultaneously;
Abnormality detection and the solution of described computation chip are further comprising the steps of: (5) if computation chip continuously long-time T detect that metering power is zero, then judge that computation chip is abnormal, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization.
Described time period N is 1 minute.
It is for described M time 3 times; Described certain value L is 10%.
Described long-time K is 5 minutes.
Described long-time T is 48 hours.
Below only just most preferred embodiment of the present invention is described, but can not be interpreted as it is limitations on claims.The present invention is not limited only to above embodiment, and its concrete structure allows to change.In every case the various change done in the protection domain of independent claims of the present invention is all in protection scope of the present invention.
Claims (6)
1. the abnormality detection of computation chip and a solution, is characterized in that: comprise the following steps:
(1), electric energy meter powers on, and canonical parameter writes in computation chip by managing chip MCU;
(2), N starts timing the time period;
(3), what time following computation chip detect:
A, detection of grid frequency, if the mains frequency continuous N time that computation chip detects detects the certain value L deflecting away from standard frequency, perform step and then judge that computation chip metering is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d);
B, detection of grid voltage, if the input voltage that the input voltage that computation chip detects detects lower than electric energy meter trigger voltage or computation chip is higher than the maximum rated voltage of electric energy meter, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d);
C, detection power, if the long-time K of computation chip the maximum rated power of power higher than electric energy meter detected, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization; Otherwise, perform step (d);
D, return perform step (3);
(4), time period N timing time arrives, and managing chip MCU reads the parameter of computation chip, if this parameter is consistent with canonical parameter, then returns step (2); Otherwise managing chip MCU, by computation chip initialization, returns step (2) simultaneously.
2. the abnormality detection of computation chip and solution according to claim 1, it is characterized in that: abnormality detection and the solution of described computation chip are further comprising the steps of: (5) if computation chip continuously long-time T detect that metering power is zero, then judge that computation chip is abnormal, then judge that computation chip is abnormal, managing chip MCU is by computation chip initialization.
3. the abnormality detection of computation chip and solution according to claim 1, is characterized in that: described time period N is 1 minute.
4. the abnormality detection of computation chip and solution according to claim 1, is characterized in that: be for described M time 3 times; Described certain value L is 10%.
5. the abnormality detection of computation chip and solution according to claim 1, is characterized in that: described long-time K is 5 minutes.
6. the abnormality detection of computation chip and solution according to claim 2, is characterized in that: described long-time T is 48 hours.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291086A (en) * | 2016-08-03 | 2017-01-04 | 宁波三星医疗电气股份有限公司 | A kind of electric energy meter metering abnormality detection and restoration methods |
| CN106571887A (en) * | 2016-10-17 | 2017-04-19 | 国家电网公司 | Management core and metering core clock synchronization processing method and device for dual-core intelligent electric energy meter |
| CN108445436A (en) * | 2018-03-01 | 2018-08-24 | 宁波迦南智能电气股份有限公司 | A kind of electric energy meter that twin-core operating status is mutually examined |
| CN108594010A (en) * | 2018-05-31 | 2018-09-28 | 宁波三星医疗电气股份有限公司 | A kind of electric power acquisition terminal power metering method |
| CN108931756A (en) * | 2018-06-12 | 2018-12-04 | 宁波三星智能电气有限公司 | A kind of electric energy meter power failure detection method |
| CN109144024A (en) * | 2017-06-27 | 2019-01-04 | 力晶科技股份有限公司 | Integrated circuit chip and inspection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106291086A (en) * | 2016-08-03 | 2017-01-04 | 宁波三星医疗电气股份有限公司 | A kind of electric energy meter metering abnormality detection and restoration methods |
| CN106571887A (en) * | 2016-10-17 | 2017-04-19 | 国家电网公司 | Management core and metering core clock synchronization processing method and device for dual-core intelligent electric energy meter |
| CN106571887B (en) * | 2016-10-17 | 2018-11-09 | 国家电网公司 | A kind of management core of twin-core intelligent electric energy meter and metering core clock synchronization process method and device |
| CN109144024A (en) * | 2017-06-27 | 2019-01-04 | 力晶科技股份有限公司 | Integrated circuit chip and inspection method thereof |
| CN108445436A (en) * | 2018-03-01 | 2018-08-24 | 宁波迦南智能电气股份有限公司 | A kind of electric energy meter that twin-core operating status is mutually examined |
| CN108445436B (en) * | 2018-03-01 | 2020-04-10 | 宁波迦南智能电气股份有限公司 | Electric energy meter with double cores for mutual detection of running states |
| CN108594010A (en) * | 2018-05-31 | 2018-09-28 | 宁波三星医疗电气股份有限公司 | A kind of electric power acquisition terminal power metering method |
| CN108594010B (en) * | 2018-05-31 | 2021-08-24 | 宁波三星医疗电气股份有限公司 | Electric quantity measuring method for electric power acquisition terminal |
| CN108931756A (en) * | 2018-06-12 | 2018-12-04 | 宁波三星智能电气有限公司 | A kind of electric energy meter power failure detection method |
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| CN104502883B (en) | 2017-07-07 |
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Owner name: NINGBO SANXING INTELLIGENT ELECTRIC CO., LTD. Free format text: FORMER OWNER: NINGBO SANXING ELECTRIC CO., LTD. Effective date: 20150513 |
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Effective date of registration: 20150513 Address after: 315034 Ningbo, Jiangbei District, Zhejiang City, the town of Maple Bay Road, No. 16 Applicant after: Ningbo Samsung intelligent electric company limited Address before: 315131, AUX Industrial Park, Mingguang North Road, Jiangshan Town, Ningbo, Yinzhou District, Zhejiang 1166, China Applicant before: Ningbo Sanxing Electric Co., Ltd. |
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