CN112615426A - Alarm collecting system for electric power system - Google Patents
Alarm collecting system for electric power system Download PDFInfo
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- CN112615426A CN112615426A CN202011329243.1A CN202011329243A CN112615426A CN 112615426 A CN112615426 A CN 112615426A CN 202011329243 A CN202011329243 A CN 202011329243A CN 112615426 A CN112615426 A CN 112615426A
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- electric power
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- 238000012545 processing Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000036632 reaction speed Effects 0.000 abstract description 3
- 238000007781 pre-processing Methods 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010606 normalization Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Alarm Systems (AREA)
Abstract
The invention relates to an alarm collecting system for an electric power system, which comprises a bracket, an alarm collecting platform, a centralized alarm platform, an alarm issuing platform and a gateway, wherein the alarm collecting platform is used for collecting alarm signals and sequentially pushing alarm information to the centralized alarm platform according to the alarm level; the invention has the advantages that: the alarm acquisition platform pushes the alarm information to the centralized alarm platform in sequence according to the alarm level, so that the centralized alarm platform can process important alarm information preferentially, important alarms can be processed preferentially when an alarm storm occurs, the alarm information is set into the alarm name, the classification, the alarm title, the alarm object and the alarm level, the classification and the maintenance rules of the alarm information made by maintenance personnel can be utilized, important alarm events can be distinguished and processed preferentially, the working efficiency is improved, the reaction speed and the accuracy are also improved obviously, and the stable operation of the power system is ensured.
Description
Technical Field
The invention relates to an alarm collecting system for an electric power system.
Background
The construction of a power grid system is one of the important national development strategies and is always one of the most funding projects for the basic construction of China. Especially in recent years, with the continuous development of the industrialization level, the workload carried by the power grid system is increasing, and each content of the power grid system tends to be intelligentized continuously. Compared with the traditional power grid system, the modern power grid system has a more complex structure, bears more work contents, runs more diversified programs, and any link has a problem, so that the modern power grid system brings great trouble to the normal work of the power supply system. Compared with other systems, the power monitoring system has the advantages of relative determination of equipment and users, strong network space isolation, private and controllable service and the like. It is considered that a safety hazard occurs once an operation that is out of the regular use of the content by the user and the device occurs. General safety monitoring systems and products are usually based on network flow and message analysis technology, and generally, the working objects of the safety monitoring systems and products are usually internet general services and protocols, and are not suitable for power monitoring systems.
The intranet safety monitoring platform that traditional used can only carry out the control in the limited scope to convenient net protection, can't get rid of the inside dangerous hidden danger of system. And the contents such as a host, a database and the like in a safety zone cannot be effectively monitored and analyzed in time, and only a general alarm system can be completed.
Disclosure of Invention
The invention aims to provide an alarm collecting system for an electric power system, which can accurately distinguish and preferentially process important alarm information, improve the working efficiency and ensure the stable operation of the electric power system.
In order to solve the technical problems, the invention is realized by the following technical scheme: the utility model provides an electric power system is with reporting an emergency and asking for help or increased vigilance collection system, includes support, the collection platform that reports an emergency and asks for help or increased vigilance, concentrated warning platform, warning issue platform and gateway, it links to each other with concentrated warning platform through the gateway to report an emergency and ask for help or increased vigilance the collection of collection platform be used for the warning signal and with warning information according to reporting an emergency and asking for help or increased vigilance rank propelling movement to concentrated warning platform in proper order, it links to each other with the distribution platform that reports an emergency and asks for help or increased vigilance to the platform through the gateway in concentration, the platform that reports an emergency and asks for help or increased vigilance realizes the receipt of warning information, judges and handle and report an emergency and ask for help or increased vigilance information feedback to concentrated issue platform on the gateway, alarm title, alarm object, and alarm level.
Preferably, the alarm issuing platform comprises a tablet personal computer and/or a mobile phone, and the tablet personal computer and/or the mobile phone are connected with the gateway through a wireless network.
Preferably, the support comprises a base and a fixing plate arranged on the base, the centralized alarm platform is arranged on the fixing plate, and the database server, the service processing server and the WEB server are all arranged on the base.
Preferably, the base includes first riser, second riser and the horizontal diaphragm of setting between first riser and second riser, all be equipped with vertical guide rail on first riser and the second riser, be equipped with on the horizontal diaphragm with vertical guide rail matched with slider, be equipped with the locking bolt on the slider, the fixed plate sets up the top at first riser and second riser.
Preferably, horizontal flanges connected with the fixing plate are arranged on the first vertical plate and the second vertical plate.
Preferably, the horizontal transverse plate is provided with a signboard.
Preferably, the alarm acquisition platform comprises an alarm acquisition PC, an access control system, a wireless network system, a switch and a transmission system which are respectively connected with the alarm acquisition PC, and the alarm acquisition PC is connected with the gateway through a wireless network.
In conclusion, the invention has the advantages that: the alarm acquisition platform acquires alarm signals in real time, then the centralized alarm platform receives, judges and processes and feeds back the alarm information to the alarm release platform, the alarm acquisition platform sequentially pushes the alarm information to the centralized alarm platform according to the alarm level, so that the centralized alarm platform can process important alarm information preferentially, when an alarm storm occurs, important alarms can be processed preferentially, missing report of the alarm information is avoided, a preferential report channel can be set up to solve the alarm storm, and then the alarm information is set into an alarm name, a classification, an alarm title, an alarm object and an alarm level, important alarm events can be distinguished and processed preferentially by utilizing the alarm information classification and maintenance rules set by maintenance personnel, resources and alarm check can be set according to the alarm information, and the accessed data can be ensured to cover the whole major, checking accessed resources, wherein the content comprises the integrity, the effectiveness, the normalization of a data format and the network element connection relation of data, not only improving the working efficiency, but also obviously improving the reaction speed and the accuracy, ensuring the stable operation of a power system, supervising and managing the system, monitoring the operation of the system all weather, feeding back and accurately positioning a fault location at the first time, helping a worker to solve problems at the first time, finally, setting a database server, a business processing server and a WEB server can file alarm information, counting whether alarms of a professional network manager are standardized or abnormal alarms after the alarms are put in storage, summarizing the alarms which cannot be summarized, performing analysis on alarm association stages, analyzing and judging the alarms which possibly need to be associated, analyzing and summarizing the non-associated alarms and the non-associated alarms, and recording the warning process of preprocessing each time, including whether preprocessing is performed or not and the result, and analyzing and classifying the preprocessing failure condition.
Other features and advantages of the present invention will be disclosed in more detail in the following detailed description of the invention and the accompanying drawings.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of an alarm collecting system for an electrical power system according to the present invention;
fig. 2 is a schematic structural view of the stent of the present invention.
Reference numerals:
the system comprises a support 1, a base 10, a fixing plate 11, a first vertical plate 12, a second vertical plate 13, a horizontal transverse plate 14, a vertical guide rail 15, a sliding block 16, a locking bolt 17, a horizontal flanging 18, a signboard 19, an alarm acquisition platform 2, an alarm acquisition PC 21, an access control system 22, a wireless network system 23, a switch 24, a transmission system 25, a centralized alarm platform 3, an alarm release platform 4, a tablet personal computer 41, a mobile phone 42, a gateway 5, a database server 6, a service processing server 7 and a WEB server 8.
Detailed Description
As shown in fig. 1 and fig. 2, an alarm collecting system for an electric power system comprises a support 1, an alarm collecting platform 2, a centralized alarm platform 3, an alarm issuing platform 4 and a gateway 5, wherein the alarm collecting platform 2 is connected with the centralized alarm platform 3 through the gateway 5, the alarm collecting platform 2 is used for collecting alarm signals and pushing alarm information to the centralized alarm platform 3 according to alarm levels in sequence, the centralized alarm platform 3 is connected with the alarm distributing platform through the gateway 5, the centralized alarm platform 3 realizes the receiving, judging and processing of the alarm information and feeds the alarm information back to the alarm issuing platform 4, the gateway 5 is further connected with a database server 6, a service processing server 7 and a WEB server 8, the centralized alarm platform 3, the database server 6, the service processing server 7 and the WEB server 8 are all arranged on the support 1, the alarm information collected by the alarm collection platform 2 includes an alarm name, a classification, an alarm title, an alarm object and an alarm level.
The alarm acquisition platform acquires alarm signals in real time, then the centralized alarm platform receives, judges and feeds back the alarm information to the alarm release platform, the alarm acquisition platform sequentially pushes the alarm information to the centralized alarm platform 3 according to the alarm level, so that the centralized alarm platform 3 can process important alarm information preferentially, when an alarm storm occurs, important alarms can be processed preferentially, missing report of the alarm information is avoided, a preferential report channel can be established to solve the alarm storm, and then the alarm information is set into an alarm name, a classification, an alarm title, an alarm object and an alarm level, important alarm events can be distinguished and processed preferentially by utilizing the alarm information classification and maintenance rules established by maintenance personnel, resources and alarm verification can be established according to the alarm information, and the accessed data can be ensured to cover the whole major, checking accessed resources, wherein the content comprises the integrity, the effectiveness, the normalization of a data format and the network element connection relation of data, not only improving the working efficiency, but also obviously improving the reaction speed and the accuracy, ensuring the stable operation of a power system, supervising and managing the system, monitoring the operation of the system all weather, feeding back and accurately positioning fault sites at the first time, helping workers to solve problems at the first time, finally, setting the database server 6, the business processing server 7 and the WEB server 8 can be used for filing alarm information, counting whether alarms of a professional network manager are standardized or abnormal alarms after the alarms are put in a warehouse, summarizing the alarms which cannot be summarized, expanding and analyzing alarm association stages, analyzing and judging the alarms which possibly need to be associated, expanding, analyzing and summarizing the non-associated alarms and the conditions which cannot be associated, and recording the warning process of preprocessing each time, including whether preprocessing is performed or not and the result, and analyzing and classifying the preprocessing failure condition.
The alarm issuing platform 4 comprises a tablet personal computer 41 and/or a mobile phone 42, the tablet personal computer 41 and/or the mobile phone 42 are connected with the gateway 5 through a wireless network, the alarm issuing platform 4 is set to be the tablet personal computer 41 and/or the mobile phone 42, alarm information can be sent to operation and maintenance personnel and management personnel at the same time, the operation and maintenance personnel and the management personnel can judge whether alarm signals need to be preprocessed according to the received alarm information, and faults are divided into manual preprocessing and system preprocessing. Through the two processing modes, the related information is supplemented, so that the processing scheme is continuously perfected, and reference is provided for the work of the next link, so that the overall efficiency is improved.
The base 10 includes the first riser 12, the second riser 13 and sets up the horizontal diaphragm 14 between first riser 12 and second riser 13, all be equipped with vertical guide rail 15 on first riser 12 and the second riser 13, be equipped with on the horizontal diaphragm 14 with vertical guide rail 15 matched with slider 16, be equipped with locking bolt 17 on the slider 16, fixed plate 11 sets up the top at first riser 12 and second riser 13, sets the base 10 into first riser 12, second riser 13 and horizontal diaphragm 14, installs database server 6, business processing server 7 and WEB server 8 through horizontal diaphragm 14, has ensured the stability of database server 6, business processing server 7 and WEB server 8 installation, secondly, because horizontal diaphragm 14 is highly adjustable on first riser 12 and second riser 13, consequently, can set up the database server 6 of different models according to the installation demand of reality in the installation, The service processing server 7 and the WEB server 8 meet different substation requirements, the vertical guide rail 15 can ensure the straightness of the horizontal transverse plate 14 during lifting, and in addition, the database server 6, the service processing server 7 and the WEB server 8 in the embodiment can be placed in the same device according to the actual application environment.
All be equipped with the horizontal turn-ups 18 that links to each other with fixed plate 11 on first riser 12 and the second riser 13, can not only guarantee the plane degree of fixed plate 11, can improve the area of contact of fixed plate 11 and first riser 12, second riser 13 moreover, improve the fixed quality of fixed plate 11, horizontal turn-ups 18 in this embodiment passes through the mounting screw on fixed plate 11, be equipped with signboard 19 on the horizontal diaphragm 14, can mark database server 6, business processing server 7 and the WEB server 8 of installing on horizontal diaphragm 14, be convenient for subsequent consulting.
The alarm acquisition platform 2 comprises an alarm acquisition PC 21, an access control system 22, a wireless network system 23, a switch 24 and a transmission system 25 which are respectively connected with the alarm acquisition PC 21, the alarm acquisition PC 21 is connected with the gateway 5 through a wireless network, can acquire the alarm information of the access control system 22, the wireless network system 23, the switch 24 and the transmission system 25 in real time, realizes the simultaneous alarm acquisition of different devices of the power system, improves the acquisition quality of the alarm information, can carry out standard and standard unification on the acquired alarm information and accurately push the alarm information to the centralized alarm platform 3, the priority queue and the common queue can be analyzed and put in storage simultaneously, when an alarm storm occurs, an important alarm priority triggering mechanism can be triggered preferentially, the common queue is processed preferentially, relevant files are generated, and alarm information can be cached.
Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.
Claims (7)
1. An alarm collection system for an electric power system, characterized in that: comprises a bracket, an alarm acquisition platform, a centralized alarm platform, an alarm release platform and a gateway, wherein the alarm acquisition platform is connected with the centralized alarm platform through the gateway, the alarm acquisition platform is used for acquiring alarm signals and sequentially pushing alarm information to the centralized alarm platform according to the alarm level, the centralized alarm platform is connected with the alarm distribution platform through the gateway, the centralized alarm platform realizes the receiving and judging processing of the alarm information and the feedback of the alarm information to the alarm release platform, the gateway is also connected with a database server, a service processing server and a WEB server, the centralized alarm platform, the database server, the service processing server and the WEB server are all arranged on the bracket, the alarm information collected by the alarm collection platform comprises an alarm name, a classification, an alarm title, an alarm object and an alarm level.
2. The alarm collecting system for the electric power system according to claim 1, wherein: the alarm issuing platform comprises a tablet personal computer and/or a mobile phone, and the tablet personal computer and/or the mobile phone are connected with the gateway through a wireless network.
3. The alarm collecting system for the electric power system according to claim 1, wherein: the support includes base and the fixed plate of setting on the base, the centralized alarm platform sets up on the fixed plate, database server, business processing server and WEB server all set up on the base.
4. The alarm collecting system for the electric power system according to claim 3, wherein: the base includes first riser, second riser and the horizontal diaphragm of setting between first riser and second riser, all be equipped with vertical guide rail on first riser and the second riser, be equipped with on the horizontal diaphragm with vertical guide rail matched with slider, be equipped with the locking bolt on the slider, the fixed plate sets up the top at first riser and second riser.
5. The alarm collecting system for the electric power system according to claim 4, wherein: horizontal flanges connected with the fixed plate are arranged on the first vertical plate and the second vertical plate.
6. The alarm collecting system for the electric power system according to claim 4, wherein: and the horizontal transverse plate is provided with a signboard.
7. The alarm collecting system for the electric power system according to claim 1, wherein: the alarm acquisition platform comprises an alarm acquisition PC, an access control system, a wireless network system, a switch and a transmission system which are respectively connected with the alarm acquisition PC, and the alarm acquisition PC is connected with the gateway through a wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329243.1A CN112615426A (en) | 2020-11-24 | 2020-11-24 | Alarm collecting system for electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011329243.1A CN112615426A (en) | 2020-11-24 | 2020-11-24 | Alarm collecting system for electric power system |
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| CN112615426A true CN112615426A (en) | 2021-04-06 |
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| CN202011329243.1A Pending CN112615426A (en) | 2020-11-24 | 2020-11-24 | Alarm collecting system for electric power system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1870788A1 (en) * | 2006-06-22 | 2007-12-26 | Mazda Motor Corporation | Remote trouble-shooting |
| CN109889373A (en) * | 2019-01-22 | 2019-06-14 | 视联动力信息技术股份有限公司 | A kind of transmission method of warning information, device and system |
| CN209235342U (en) * | 2018-11-15 | 2019-08-13 | 成都师范附属小学金堂分校 | A kind of storage device of teacher's teaching aid |
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2020
- 2020-11-24 CN CN202011329243.1A patent/CN112615426A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1870788A1 (en) * | 2006-06-22 | 2007-12-26 | Mazda Motor Corporation | Remote trouble-shooting |
| JP2008001233A (en) * | 2006-06-22 | 2008-01-10 | Mazda Motor Corp | Remote failure diagnostic system |
| CN209235342U (en) * | 2018-11-15 | 2019-08-13 | 成都师范附属小学金堂分校 | A kind of storage device of teacher's teaching aid |
| CN109889373A (en) * | 2019-01-22 | 2019-06-14 | 视联动力信息技术股份有限公司 | A kind of transmission method of warning information, device and system |
Non-Patent Citations (1)
| Title |
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Application publication date: 20210406 |