CN104502883B - The abnormality detection and solution of computation chip - Google Patents
The abnormality detection and solution of computation chip Download PDFInfo
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- CN104502883B CN104502883B CN201410841959.8A CN201410841959A CN104502883B CN 104502883 B CN104502883 B CN 104502883B CN 201410841959 A CN201410841959 A CN 201410841959A CN 104502883 B CN104502883 B CN 104502883B
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Abstract
The invention discloses the abnormality detection and solution of a kind of computation chip, comprise the following steps：(1), upper electricity, canonical parameter is write in computation chip；(2), time period N timing；(3), detect it is following some：A, detection mains frequency, b, detection line voltage；C, detection power (4), time period N timing time are arrived, and managing chip MCU reads the parameter of computation chip, if the parameter is consistent with canonical parameter, return to step (2)；Otherwise, managing chip MCU initializes computation chip, while return to step (2)；The method is able to detect that computation chip is abnormal and can recover, so as to the reliability and stability of meter can be effectively improved.
Description
Technical field
It is especially the abnormality detection and solution of a kind of computation chip the present invention relates to electric energy meter technical field.
Background technology
Computation chip is a kind of high-precision electric energy meter electric energy metering module.When computation chip receives the interference in the external world,
The problems such as computation chip can be caused resetting, crash, and then occur that variable is bigger than normal less than normal for a long time or complete non-metering feelings
Condition, influences the normal metering of electric energy.And the failure can be by software processing reparation.Therefore, for these reasons, it would be highly desirable to need one
The abnormality detection and solution of computation chip are planted, the method is able to detect that computation chip is abnormal and can recover, so that can
The reliability and stability of meter are effectively improved, to solve the above problems.
The content of the invention
The technical problem to be solved in the present invention is to provide the abnormality detection and solution of a kind of computation chip, the method
It is able to detect that computation chip is abnormal and can recover, so as to the reliability and stability of meter can be effectively improved.
The technical scheme is that, there is provided the abnormality detection and solution of a kind of computation chip, comprise the following steps：
(1), electricity on electric energy meter, managing chip MCU writes in computation chip canonical parameter；
(2), time period N starts timing；
(3), computation chip detection it is following some：
A, detection mains frequency, if the mains frequency continuous N time that computation chip is detected is detected is deflected away from standard frequency
Certain value L, perform step and then judge that computation chip metering is abnormal, managing chip MCU initializes computation chip；Otherwise,
Perform step (d)；
B, detection line voltage, if the input voltage that computation chip is detected starts voltage or metering less than electric energy meter
The input voltage that chip detection is arrived is higher than the maximum rated voltage of electric energy meter, then judge computation chip exception, and managing chip MCU will be counted
Amount chip initiation；Otherwise, step (d) is performed；
C, detection power, if computation chip long-time K's detects maximum rated power of the power higher than electric energy meter,
Judge computation chip exception, managing chip MCU initializes computation chip；Otherwise, step (d) is performed；
D, return perform step (3)；
(4), time period N timing times are arrived, and managing chip MCU reads the parameter of computation chip, if the parameter and standard
Parameter is consistent, then return to step (2)；Otherwise, managing chip MCU initializes computation chip, while return to step (2)；
The abnormality detection and solution of the computation chip are further comprising the steps of：(5) if, computation chip it is continuously long
The metering power that detects of time T is zero, then judge computation chip exception, then judge computation chip exception, and managing chip MCU will
Computation chip is initialized.
Described time period N is 1 minute.
Described M times is 3 times；Described certain value L is 10%.
Described long-time K is 5 minutes.
Described long-time T is 48 hours.
After above method, the present invention compared with prior art, with advantages below：
The abnormality detection and solution of computation chip of the present invention pass through real-time detection mains frequency, voltage, the number of power
According to judge whether computation chip is abnormal by judging the method for data exception, while also by reading computation chip internal reference
Whether several methods is abnormal to detect computation chip, if it find that above-mentioned exception is then by initialization, and (power down, re-powers, and leads to
Cross MCU and re-write data) method solve.And when computation chip receives the interference in the external world, any change can
Monitored by above-mentioned detection and cause computation chip initialization, it is bigger than normal less than normal or complete so as to avoid long-time from variable occur
Complete non-metering situation, and then ensure that the normal metering of electric energy.
Used as improvement, the abnormality detection and solution of the computation chip are further comprising the steps of：(5) if, metering
The metering power that detects of the continuous long-time T of chip is zero, then judge computation chip exception, then judge computation chip exception, is managed
Reason chip MCU initializes computation chip.The step can solve the problem that computation chip is locked because receiving interference to be caused for a long time not
The situation of metering.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
The present invention a kind of abnormality detection and solution of computation chip, comprise the following steps：
(1), electricity on electric energy meter, managing chip MCU writes in computation chip canonical parameter, and the canonical parameter is electric energy meter
Preset parameter, its pass through experiment acquirement；
(2), time period N starts timing, usually one minute；
(3), computation chip detection it is following some：
A, detection mains frequency, if the mains frequency continuous N time that computation chip is detected is detected is deflected away from standard frequency
Certain value L, perform step and then judge that computation chip metering is abnormal, managing chip MCU initializes computation chip；Otherwise,
Perform step (d)；If mains frequency is 50Hz, then the value for deflecting away from is 5Hz, as long as that is, mains frequency exceeds 45Hz-
55Hz, that is, sentence exception.
B, detection line voltage, if the input voltage that computation chip is detected starts voltage or metering less than electric energy meter
The input voltage that chip detection is arrived is higher than the maximum rated voltage of electric energy meter, then judge computation chip exception, and managing chip MCU will be counted
Amount chip initiation；Otherwise, step (d) is performed；If general, if line voltage is 220V, then as long as line voltage
Beyond 110V-440V, that is, sentence exception.
C, detection power, if computation chip long-time K's detects maximum rated power of the power higher than electric energy meter,
Judge computation chip exception, managing chip MCU initializes computation chip；Otherwise, step (d) is performed；Maximum rated power exists
Can be marked on electric energy meter
D, return perform step (3)；It is the number of continuous monitoring mains frequency, line voltage and power in time period N
According to i.e. real-time monitoring.
(4), time period N timing times are arrived, and managing chip MCU reads the parameter of computation chip, if the parameter and standard
Parameter is consistent, then return to step (2)；Otherwise, managing chip MCU initializes computation chip, while return to step (2)；
The abnormality detection and solution of the computation chip are further comprising the steps of：(5) if, computation chip it is continuously long
The metering power that detects of time T is zero, then judge computation chip exception, then judge computation chip exception, and managing chip MCU will
Computation chip is initialized.
Described time period N is 1 minute.
Described M times is 3 times；Described certain value L is 10%.
Described long-time K is 5 minutes.
Described long-time T is 48 hours.
Below only highly preferred embodiment of the present invention is described, but is not to be construed as limiting the scope of the invention.This
Invention is not limited only to above example, and its concrete structure allows to change.In every case in the protection model of independent claims of the present invention
Enclose interior made various change within the scope of the present invention.
Claims (6)
1. the abnormality detection and solution of a kind of computation chip, it is characterised in that：Comprise the following steps：
(1), electricity on electric energy meter, managing chip MCU writes in computation chip canonical parameter；
(2), time period N starts timing；
(3), computation chip detection it is following some：
A, detection mains frequency, if the mains frequency continuous N time that computation chip is detected is detected is deflected away from the one of standard frequency
Definite value L, then judge that computation chip metering is abnormal, and managing chip MCU initializes computation chip；Otherwise, step (d) is performed；
B, detection line voltage, if the input voltage that computation chip is detected starts voltage or computation chip less than electric energy meter
The input voltage for detecting is higher than the maximum rated voltage of electric energy meter, then judge computation chip exception, and managing chip MCU is by metering core
Piece is initialized；Otherwise, step (d) is performed；
C, detection power, if computation chip long-time K's detects maximum rated power of the power higher than electric energy meter, judge
Computation chip exception, managing chip MCU initializes computation chip；Otherwise, step (d) is performed；
D, return perform step (3)；
(4), time period N timing times are arrived, and managing chip MCU reads the parameter of computation chip, if the parameter and canonical parameter
Unanimously, then return to step (2)；Otherwise, managing chip MCU initializes computation chip, while return to step (2).
2. the abnormality detection and solution of computation chip according to claim 1, it is characterised in that：The computation chip
Abnormality detection and solution are further comprising the steps of：(5) if, computation chip continuous long-time T detect metering power
It is zero, then judges computation chip exception, managing chip MCU initializes computation chip.
3. the abnormality detection and solution of computation chip according to claim 1, it is characterised in that：Described time period N
It is 1 minute.
4. the abnormality detection and solution of computation chip according to claim 1, it is characterised in that：Described M times is 3
It is secondary；Described certain value L is 10%.
5. the abnormality detection and solution of computation chip according to claim 1, it is characterised in that：Described long-time K
It is 5 minutes.
6. the abnormality detection and solution of computation chip according to claim 2, it is characterised in that：Described long-time T
It is 48 hours.
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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 |
| 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 |
| TWI639847B (en) * | 2017-06-27 | 2018-11-01 | Powerchip Technology Corporation | Integrated circuit chip and inspection method thereof |
| 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 |
| 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 |
| CN108931756B (en) * | 2018-06-12 | 2020-11-03 | 宁波三星智能电气有限公司 | Power failure detection method for electric energy meter |
Citations (1)
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| WO1998053332A1 (en) * | 1997-05-19 | 1998-11-26 | Schlumberger Resource Management Services, Inc. | Electronic revenue meter with automatic service sensing |
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| CN1270188C (en) * | 2002-01-30 | 2006-08-16 | 湖南省电力试验研究所 | Fictitious load source for in-situ checking electric energy meter |
| CN101871967B (en) * | 2009-04-22 | 2012-06-27 | 深圳长城开发科技股份有限公司 | Metering method of electric energy meter |
| CN103983836B (en) * | 2014-04-29 | 2016-10-12 | 宁波三星医疗电气股份有限公司 | Electric energy meter full decompression detection method |
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| WO1998053332A1 (en) * | 1997-05-19 | 1998-11-26 | Schlumberger Resource Management Services, Inc. | Electronic revenue meter with automatic service sensing |
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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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