CN108445325B - Power failure diagnosis system - Google Patents
Power failure diagnosis system Download PDFInfo
- Publication number
- CN108445325B CN108445325B CN201810276279.4A CN201810276279A CN108445325B CN 108445325 B CN108445325 B CN 108445325B CN 201810276279 A CN201810276279 A CN 201810276279A CN 108445325 B CN108445325 B CN 108445325B
- Authority
- CN
- China
- Prior art keywords
- current
- pressure sensor
- resistor array
- loop
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003745 diagnosis Methods 0.000 title claims abstract description 35
- 238000011156 evaluation Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000007619 statistical method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Locating Faults (AREA)
Abstract
The invention relates to a power failure diagnosis system and a diagnosis method, belonging to the technical field of power systems; the power failure diagnosis system comprises an annular loop which is arranged on the same plane with a power line, wherein an ammeter A, a parallel resistor array, a resistor array controller and an evaluation system are arranged on the loop in series; the resistance array controller changes the number of parallel resistors connected to a loop according to current data of the ammeter A, and the evaluation system changes the current change data into pressure data with a linear area by arranging a guide rail, a sliding block, an alternating current motor, a knocking hammer, a pressure sensor arranged in a differential mode and an evaluation processor; on the basis, the power fault diagnosis method which firstly carries out large-current fault diagnosis and then carries out small-current fault diagnosis can be realized; the power failure diagnosis system and the diagnosis method can monitor the current of the power line under the condition of not losing the transmission power, and can carry out effective early warning before the occurrence of transverse failure and longitudinal failure.
Description
The application is a divisional application of the invention patent application 'a power failure diagnosis system and method'.
Application date of the original case: 2016-05-25.
Original application No.: 2016103515032.
the name of the original invention is: a power failure diagnosis system and a diagnosis method.
Technical Field
The invention discloses a power failure diagnosis system, and belongs to the technical field of power systems.
Background
Faults of an electric power system can be generally classified into two major categories, a lateral fault and a longitudinal fault. The transverse faults refer to various types of short-circuit faults, and the longitudinal faults mainly refer to various types of disconnection faults.
Whether the fault is a transverse fault or a longitudinal fault, the fault can be easily detected after the fault occurs, but at the moment, remedial measures are taken, and losses caused by some faults cannot be compensated.
Research shows that the electric power system has signs before the fault occurs, the signs are reflected in the change of current, how to diagnose the fault by using the current change has a preventive effect, and the method is the direction of the power system needing important research.
Disclosure of Invention
In order to solve the problems, the invention discloses a power fault diagnosis system and a power fault diagnosis method, which utilize the electromagnetic induction principle to monitor the current of a power line under the condition of not losing transmission electric energy, can effectively early warn before transverse faults and longitudinal faults occur, and play a positive role in the safe operation of a power system.
The purpose of the invention is realized as follows:
a power failure diagnosis system comprises an annular loop which is arranged on the same plane with a power line, wherein an ammeter A, a parallel resistor array, a resistor array controller and an evaluation system are arranged on the loop in series;
the current data of the ammeter A is transmitted to the resistor array controller;
the control signal of the resistor array controller is transmitted to the parallel resistor array and is used for changing the number of parallel resistors on the access loop;
the ammeter A is used for monitoring whether the current of the annular loop exceeds a threshold value or not, and the resistor array controller controls the parallel resistor array to reduce the number of parallel resistors connected to the loop under the condition that the current exceeds the threshold value;
the evaluation system comprises a guide rail, a sliding block sliding on the guide rail, an alternating current motor controlling the sliding block to slide on the guide rail, a knocking hammer arranged below the sliding block, a left pressure sensor and a right pressure sensor which are horizontally arranged on two sides of the knocking hammer at equal intervals, and an evaluation processor which is connected with the left pressure sensor and the right pressure sensor and can process and analyze data;
the left pressure sensor is arranged above the knocking hammer when the knocking hammer is located at the lowest point, the right pressure sensor is arranged below the knocking hammer when the knocking hammer is located at the lowest point, and the distance from the left pressure sensor to the lowest point of the knocking hammer is equal to the distance from the lowest point of the knocking hammer to the right pressure sensor in the vertical direction;
and the evaluation processor subtracts the pressure data of the left pressure sensor from the pressure data of the right pressure sensor, performs linear fitting on the linear section, and diagnoses the power failure according to the slope of the linear section.
A power failure diagnosis method implemented on the above power failure diagnosis system, comprising the steps of:
step a, diagnosing large-current fault
The ammeter A transmits current data to the resistor array controller, the resistor array controller judges whether the current of the annular loop exceeds a threshold value, and if so, the method comprises the following steps:
if the current exceeds the threshold value, judging that the power system has a large-current fault; the resistor array controller controls the parallel resistor array, reduces the number of parallel resistors on the access loop, and repeats the step;
if the current does not exceed the threshold value, judging that the power system has no large-current fault, and entering the step b;
step b, low current fault diagnosis
The evaluation processor subtracts the pressure data of the left pressure sensor from the pressure data of the right pressure sensor and fits a straight line to the linear segment if:
if the absolute value of the slope exceeds the maximum value of the threshold or is smaller than the minimum value of the threshold, the judgment result shows that the power system has a low-current fault, and the step is repeated;
and if the absolute value of the slope is between the maximum threshold value and the minimum threshold value, judging that the power system has no low-current fault, and ending.
According to the power failure diagnosis method, the current threshold, the maximum absolute value threshold and the minimum absolute value threshold are obtained through a statistical method or selected according to experience.
Has the advantages that:
firstly, because each unit for diagnosing the power failure is arranged on the annular loop which is arranged on the same plane with the power line, the current of the power line can be monitored without using the electric energy of the power line and losing the transmission electric energy;
secondly, the resistor array controller can change the number of parallel resistors on an access loop according to the current data of the ammeter A, so that not only can the transverse fault be monitored, but also the whole power fault diagnosis system can be prevented from being damaged due to the transverse fault;
and thirdly, the knocking hammer and the two pressure sensors are arranged, the two sensors are arranged in a differential mode, the change of current is changed into pressure change, meanwhile, a linear region of pressure data appears through signal conversion and the differential setting, and the power failure can be judged through the slope of the linear region, so that the data processing is simplified, and the judgment precision is improved.
Drawings
Fig. 1 is a schematic diagram of the electrical connections of the power failure diagnostic system of the present invention.
Fig. 2 is a schematic configuration diagram of the evaluation system.
Fig. 3 is a flow chart of a power failure diagnostic method of the present invention.
In the figure: the system comprises a 1 parallel resistor array, a 2 resistor array controller, a 3 evaluation system, a 31 guide rail, a 32 sliding block, a 33 alternating current motor, a 34 knocking hammer, a 35 left pressure sensor, a 36 right pressure sensor and a 37 evaluation processor.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Detailed description of the preferred embodiment
The present embodiment is a power failure diagnosis system embodiment.
Fig. 1 shows a schematic diagram of electrical connections of the power failure diagnosis system of the present embodiment. The power failure diagnosis system comprises an annular loop which is arranged on the same plane with a power line, wherein an ammeter A, a parallel resistor array 1, a resistor array controller 2 and an evaluation system 3 are arranged on the loop in series;
the current data of the ammeter A is transmitted to the resistor array controller 2;
the control signal of the resistor array controller 2 is transmitted to the parallel resistor array 1 for changing the number of parallel resistors on the access loop;
the ammeter A is used for monitoring whether the current of the annular loop exceeds a threshold value or not, and under the condition that the current exceeds the threshold value, the resistor array controller 2 controls the parallel resistor array 1 to reduce the number of parallel resistors connected to the loop;
the schematic structure of the evaluation system 3 is shown in fig. 2. The evaluation system 3 comprises a guide rail 31, a slide block 32 sliding on the guide rail 31, an alternating current motor 33 controlling the slide block 32 to slide on the guide rail, a knocking hammer 34 arranged below the slide block 32, a left pressure sensor 35 and a right pressure sensor 36 horizontally arranged at equal intervals on two sides of the knocking hammer 34, and an evaluation processor 37 connected with the left pressure sensor 35 and the right pressure sensor 36 and capable of processing and analyzing data;
the left pressure sensor 35 is arranged above the knocking hammer 34 when the knocking hammer is located at the lowest point, the right pressure sensor 36 is arranged below the knocking hammer 34 when the knocking hammer is located at the lowest point, and in the vertical direction, the distance from the left pressure sensor 35 to the lowest point of the knocking hammer 34 is equal to the distance from the lowest point of the knocking hammer 34 to the right pressure sensor 36;
the evaluation processor 37 subtracts the pressure data of the left pressure sensor 35 from the pressure data of the right pressure sensor 36, and performs a straight line fitting on the linear segment, and diagnoses the power failure based on the slope of the linear segment.
Detailed description of the invention
The present embodiment is an embodiment of a power failure diagnosis system implemented on the power failure diagnosis system described in the first embodiment.
The flowchart of the power failure diagnosis method of the present embodiment is shown in fig. 3. The power failure diagnosis method comprises the following steps:
step a, diagnosing large-current fault
The ammeter A transmits current data to the resistor array controller 2, the resistor array controller 2 judges whether the loop current exceeds a threshold value, and if so:
if the current exceeds the threshold value, judging that the power system has a large-current fault; the resistor array controller 2 controls the parallel resistor array 1, reduces the number of parallel resistors on the access loop, and repeats the step;
if the current does not exceed the threshold value, judging that the power system has no large-current fault, and entering the step b;
step b, low current fault diagnosis
The evaluation processor 37 subtracts the pressure data of the left pressure sensor 35 from the pressure data of the right pressure sensor 36 and fits a straight line to the linear segment if:
if the absolute value of the slope exceeds the maximum value of the threshold or is smaller than the minimum value of the threshold, the judgment result shows that the power system has a low-current fault, and the step is repeated;
and if the absolute value of the slope is between the maximum threshold value and the minimum threshold value, judging that the power system has no low-current fault, and ending.
According to the power failure diagnosis method, the current threshold, the maximum absolute value threshold and the minimum absolute value threshold need to be obtained through a statistical method or selected according to experience by combining the load condition. Since the value selection work is routine for those skilled in the art and can be obtained through limited experiments, the description is not repeated in this embodiment.
Claims (1)
1. A power failure diagnosis system comprises a ring-shaped loop which is arranged on the same plane with a power line, and is characterized in that an ammeter A, a parallel resistor array (1), a resistor array controller (2) and an evaluation system (3) are arranged on the loop in series;
the current data of the ammeter A is transmitted to a resistor array controller (2);
the control signal of the resistor array controller (2) is transmitted to the parallel resistor array (1) and is used for changing the number of parallel resistors on the access loop;
the ammeter A is used for monitoring whether the current of the annular loop exceeds a threshold value or not, and under the condition that the current exceeds the threshold value, the resistor array controller (2) controls the parallel resistor array (1) to reduce the number of parallel resistors connected to the loop;
the evaluation system (3) comprises a guide rail (31), a sliding block (32) sliding on the guide rail (31), an alternating current motor (33) controlling the sliding block (32) to slide on the guide rail, a knocking hammer (34) arranged below the sliding block (32), a left pressure sensor (35) and a right pressure sensor (36) which are horizontally arranged on two sides of the knocking hammer (34) at equal intervals, and an evaluation processor (37) which is connected with the left pressure sensor (35) and the right pressure sensor (36) and can process and analyze data;
the left pressure sensor (35) is arranged above the knocking hammer (34) when the knocking hammer is located at the lowest point, the right pressure sensor (36) is arranged below the knocking hammer (34) when the knocking hammer is located at the lowest point, and in the vertical direction, the distance from the left pressure sensor (35) to the lowest point of the knocking hammer (34) is equal to the distance from the lowest point of the knocking hammer (34) to the right pressure sensor (36);
the evaluation processor (37) subtracts the pressure data of the left pressure sensor (35) from the pressure data of the right pressure sensor (36), performs straight line fitting on the linear segment, and diagnoses the power failure according to the slope of the linear segment;
the power failure diagnosis method implemented on the power failure diagnosis system includes the steps of:
step a, diagnosing large-current fault
The ammeter A transmits current data to the resistor array controller (2), the resistor array controller (2) judges whether the loop current exceeds a threshold value, and if so:
if the current exceeds the threshold value, judging that the power system has a large-current fault; the resistor array controller (2) controls the parallel resistor array (1), reduces the number of parallel resistors on the access loop and repeats the step;
if the current does not exceed the threshold value, judging that the power system has no large-current fault, and entering the step b;
step b, low current fault diagnosis
An evaluation processor (37) subtracts the pressure data of the left pressure sensor (35) from the pressure data of the right pressure sensor (36) and applies a straight line fit to the linear segment if:
if the absolute value of the slope exceeds the maximum value of the threshold or is smaller than the minimum value of the threshold, the judgment result shows that the power system has a low-current fault, and the step is repeated;
if the absolute value of the slope is between the maximum threshold value and the minimum threshold value, judging that the power system has no low-current fault, and ending;
the current threshold, the maximum absolute value threshold and the minimum absolute value threshold are obtained through a statistical method or selected according to experience.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276279.4A CN108445325B (en) | 2016-05-25 | 2016-05-25 | Power failure diagnosis system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351503.2A CN105954620B (en) | 2016-05-25 | 2016-05-25 | A kind of power fault detection system |
| CN201810276279.4A CN108445325B (en) | 2016-05-25 | 2016-05-25 | Power failure diagnosis system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610351503.2A Division CN105954620B (en) | 2016-05-25 | 2016-05-25 | A kind of power fault detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108445325A CN108445325A (en) | 2018-08-24 |
| CN108445325B true CN108445325B (en) | 2020-09-04 |
Family
ID=56909569
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810276279.4A Active CN108445325B (en) | 2016-05-25 | 2016-05-25 | Power failure diagnosis system |
| CN201810516060.7A Active CN108982988B (en) | 2016-05-25 | 2016-05-25 | Power failure early warning diagnosis method |
| CN201810276509.7A Active CN108318765B (en) | 2016-05-25 | 2016-05-25 | Power failure diagnosis method |
| CN201610351503.2A Active CN105954620B (en) | 2016-05-25 | 2016-05-25 | A kind of power fault detection system |
| CN201810276766.0A Active CN108469565B (en) | 2016-05-25 | 2016-05-25 | Power failure diagnosis method and application thereof in power failure diagnosis |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810516060.7A Active CN108982988B (en) | 2016-05-25 | 2016-05-25 | Power failure early warning diagnosis method |
| CN201810276509.7A Active CN108318765B (en) | 2016-05-25 | 2016-05-25 | Power failure diagnosis method |
| CN201610351503.2A Active CN105954620B (en) | 2016-05-25 | 2016-05-25 | A kind of power fault detection system |
| CN201810276766.0A Active CN108469565B (en) | 2016-05-25 | 2016-05-25 | Power failure diagnosis method and application thereof in power failure diagnosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN108445325B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445325B (en) * | 2016-05-25 | 2020-09-04 | 西安兆腾测控技术有限公司 | Power failure diagnosis system |
| JP6230677B1 (en) * | 2016-10-20 | 2017-11-15 | 三菱電機株式会社 | Control device and control method for rotating electrical machine |
| CN108828375B (en) * | 2018-08-17 | 2020-08-14 | 国网江苏省电力有限公司电力科学研究院 | Air conditioner electric monitoring system and method based on double-loop intelligent electric energy meter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013311A (en) * | 2010-11-16 | 2011-04-13 | 东北电力大学 | Pressure type current transformer |
| CN102407878A (en) * | 2010-09-16 | 2012-04-11 | 万都株式会社 | Electric power steering apparatus, malfunction judging method, and current estimating method |
| CN202268243U (en) * | 2011-09-21 | 2012-06-06 | 吉林省电力有限公司超高压公司 | Stress current transformer |
| CN103176103A (en) * | 2013-03-15 | 2013-06-26 | 华北电力大学 | Overhead power distribution line single-phase grounding fault positioning method |
| WO2015098523A1 (en) * | 2013-12-27 | 2015-07-02 | オムロン株式会社 | Ground fault detection device |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0650330B2 (en) * | 1986-10-03 | 1994-06-29 | 富士電機株式会社 | Deterioration diagnosis method for zinc oxide type arrester |
| JP2000046892A (en) * | 1998-07-28 | 2000-02-18 | Hitachi Ltd | Fault locating system |
| CN2824052Y (en) * | 2005-08-26 | 2006-10-04 | 南京创兆电气有限公司 | Indicator for short circuit and earth fault |
| WO2007137202A2 (en) * | 2006-05-19 | 2007-11-29 | Schweitzer Engineering Laboratories, Inc. | User interface for monitoring a plurality of faulted circuit indicators |
| JP4650477B2 (en) * | 2007-10-30 | 2011-03-16 | ダイキン工業株式会社 | Leakage detection method |
| CN101692114A (en) * | 2009-07-10 | 2010-04-07 | 江苏省电力公司无锡供电公司 | Disconnection monitoring and alarm system for high voltage cable grounding system |
| CN201724990U (en) * | 2009-12-04 | 2011-01-26 | 中国电力科学研究院 | Fault current experimental detection device of Direct Current (DC) transmission converter valve |
| CN202261087U (en) * | 2011-08-19 | 2012-05-30 | 何靖宇 | Distributed off-grid solar energy power station |
| CN203929946U (en) * | 2014-06-30 | 2014-11-05 | 中国航空无线电电子研究所 | A kind of interconnecting cable induced field test device |
| CN204241617U (en) * | 2014-10-28 | 2015-04-01 | 国网辽宁省电力有限公司朝阳供电公司 | Energy-saving transmission line malfunction monitoring system |
| CN104459445A (en) * | 2014-12-16 | 2015-03-25 | 国家电网公司 | Distributing line misoperation preventing detecting device and detecting method thereof |
| CN204389624U (en) * | 2014-12-31 | 2015-06-10 | 安徽天健环保车辆部件有限公司 | A kind of metering circuit of insulating monitor faulty circuit |
| CN105425089A (en) * | 2015-11-02 | 2016-03-23 | 国网山东济宁市任城区供电公司 | High-tension power transmission cable detection and alarm device |
| CN108445325B (en) * | 2016-05-25 | 2020-09-04 | 西安兆腾测控技术有限公司 | Power failure diagnosis system |
-
2016
- 2016-05-25 CN CN201810276279.4A patent/CN108445325B/en active Active
- 2016-05-25 CN CN201810516060.7A patent/CN108982988B/en active Active
- 2016-05-25 CN CN201810276509.7A patent/CN108318765B/en active Active
- 2016-05-25 CN CN201610351503.2A patent/CN105954620B/en active Active
- 2016-05-25 CN CN201810276766.0A patent/CN108469565B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407878A (en) * | 2010-09-16 | 2012-04-11 | 万都株式会社 | Electric power steering apparatus, malfunction judging method, and current estimating method |
| CN102013311A (en) * | 2010-11-16 | 2011-04-13 | 东北电力大学 | Pressure type current transformer |
| CN202268243U (en) * | 2011-09-21 | 2012-06-06 | 吉林省电力有限公司超高压公司 | Stress current transformer |
| CN103176103A (en) * | 2013-03-15 | 2013-06-26 | 华北电力大学 | Overhead power distribution line single-phase grounding fault positioning method |
| WO2015098523A1 (en) * | 2013-12-27 | 2015-07-02 | オムロン株式会社 | Ground fault detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108318765B (en) | 2020-11-27 |
| CN108469565B (en) | 2020-10-27 |
| CN108982988B (en) | 2020-10-30 |
| CN108318765A (en) | 2018-07-24 |
| CN108445325A (en) | 2018-08-24 |
| CN108982988A (en) | 2018-12-11 |
| CN105954620A (en) | 2016-09-21 |
| CN105954620B (en) | 2018-09-07 |
| CN108469565A (en) | 2018-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108638128B (en) | Real-time abnormity monitoring method and system of industrial robot | |
| CN111024416B (en) | Fault diagnosis method and system for train traction system | |
| CN108318765B (en) | Power failure diagnosis method | |
| EP3404432B1 (en) | Method and system for detecting relay adhesion | |
| CN103792087A (en) | Parallel trial run fault monitoring and diagnosing method | |
| CN106654403A (en) | Method for preventing battery failure false alarm and apparatus thereof | |
| CN107939577A (en) | A kind of hydrogovernor proportional servo valve on-line fault diagnosis method | |
| CN110072737A (en) | On-vehicle control apparatus | |
| CN103941138B (en) | OPGW line monitoring diagnosis system and monitoring, diagnosing method completely | |
| CN106371018A (en) | Cell-terminal-voltage-estimation-based fault diagnosis method and equipment for vehicle power battery | |
| DE102018204182A1 (en) | Method for monitoring a supply system of a motor vehicle | |
| CN115817272A (en) | Battery management system, electric quantity monitoring method and device thereof, and new energy automobile | |
| CN110763990A (en) | Diagnosis method for relay of new energy automobile | |
| CN107271755A (en) | A kind of tube type bus intelligent checking system | |
| CN104483588A (en) | Electrical failure diagnosis method and device for relay control terminal | |
| CN116852996A (en) | Motor controller, detection method and vehicle | |
| CN114199505B (en) | Generator stator bar flow performance evaluation method based on correlation analysis | |
| CN105466685B (en) | A kind of detection method of breaker actuating spring energy-storage state | |
| CN2663919Y (en) | Monitoring and fault diagnosing system for speed regulation arrangement of turbo generating set | |
| CN111196227B (en) | Sensor signal monitoring method and device and vehicle | |
| CN112829794A (en) | Contactor fault early warning method and related device | |
| CN111986469A (en) | Intelligent diagnosis method for field terminal fault | |
| CN111060763A (en) | Method and system for detecting failure of anti-icing and deicing system based on time sequence judgment | |
| CN215263833U (en) | IGBT/SiC device fault on-line automatic monitoring system | |
| CN112326255B (en) | Engine remote health monitoring system and monitoring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Junteng Inventor after: Dang Yingli Inventor after: Huang Xuefeng Inventor before: Request for anonymity |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200810 Address after: No.309, 3 / F, new times building, No.9, Gaoxin Third Road, hi tech Zone, Xi'an City, Shaanxi Province Applicant after: XI'AN ZHAOTENG MEASUREMENT AND CONTROL TECHNOLOGY Co.,Ltd. Address before: 852000 No. 33 North Liaoning Road, nany Qu, Nagqu District, Tibet Autonomous Region Applicant before: Huang Xuefeng |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 309, 3rd Floor, New Era Building, No. 9 Gaoxin 3rd Road, High tech Zone, Xi'an City, Shaanxi Province, 710000 Patentee after: Zhaoteng Measurement and Control (Xi'an) Group Co.,Ltd. Country or region after: China Address before: No. 309, 3rd Floor, New Era Building, No. 9 Gaoxin 3rd Road, High tech Zone, Xi'an City, Shaanxi Province, 710000 Patentee before: XI'AN ZHAOTENG MEASUREMENT AND CONTROL TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |