CN108448726B - Method for reporting power failure event of power system - Google Patents
Method for reporting power failure event of power system Download PDFInfo
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- CN108448726B CN108448726B CN201810340434.4A CN201810340434A CN108448726B CN 108448726 B CN108448726 B CN 108448726B CN 201810340434 A CN201810340434 A CN 201810340434A CN 108448726 B CN108448726 B CN 108448726B
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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
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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
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- 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
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Abstract
The invention relates to a method for reporting a power failure event of a power system, which is used for the power system formed by a plurality of electric meters, a power concentrator and a power office master station, wherein each electric meter is in communication connection with the power concentrator, and the power concentrator is in communication connection with the power office master station; at least one electric meter is internally provided with a wireless communication device and a capacitor device for storing electric quantity. Through add chargeable electric capacity device and wireless communication device on the power line, electric capacity device constantly receives the charging of power line when the power failure incident does not appear, in case when the power line that the ammeter was located had a power failure, give wireless communication device power supply by the electric capacity device that has become full of electricity immediately, make wireless communication device can charge and maintain the wireless communication connection with the power line between, thereby give the power concentrator processing to corresponding power failure incident information by wireless communication device, the main website of electric power office is forwardded to by the power concentrator again, make things convenient for the main website of electric power office in time to dispatch the people to the district branch road of having a power failure and maintain.
Description
Technical Field
The invention relates to the field of power systems, in particular to a method for reporting a power failure event of a power system.
Background
As the most widespread national public infrastructure for urban arrangements, current power systems mainly comprise a number of electricity meters, power concentrators and power bureau master stations. Each electric meter in the power system is connected with a power concentrator through a power line, and the power concentrator and the power bureau master station are also connected in power line communication. Therefore, in the existing power system, the electric meter can report the metering data to the power concentrator for processing, and then the power concentrator sends the processed electric meter reporting data to the power station master station.
However, existing power systems still have disadvantages: because the communication between the electric meter and the power concentrator is realized through the power line, once the power line between the electric meter and the power concentrator has power failure, the power line stops working, the electric meter cannot report the power failure event to the power concentrator in time at the first time by means of the power line, and then the power concentrator cannot send the power failure event information generated by the power line to the power bureau master station in time, so that the power bureau master station cannot timely monitor the power failure event in the power system.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for reporting a power failure event of an electrical power system in view of the above prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for reporting power failure events of a power system is used for the power system formed by a plurality of electric meters, a power concentrator and a power office master station, wherein each electric meter is in communication connection with the power concentrator, and the power concentrator is in communication connection with the power office master station; at least one electric meter is internally provided with a wireless communication device and a capacitor device for storing electric quantity, the input end of the capacitor device is electrically connected with a power line where the electric meter is positioned, and the output end of the capacitor device is connected with the wireless communication device; the method for reporting the power failure event of the power system is characterized by comprising the following steps 1 to 4:
step 1, aiming at an electric meter with a capacitor device, under the condition that a power line where the electric meter is positioned is not powered off, the power line charges the capacitor device, so that electric quantity is stored in the capacitor device;
step 3, the power concentrator obtains the power line zone branch of the power line with the power failure event according to the received power failure event, and sends the prompt information of the power failure event of the power line zone branch to the power station master station;
and 4, the power station master station timely sends power workers to the power distribution area branch corresponding to the power failure event for power failure repair according to the power failure event prompt information sent by the power concentrator, so that the power station master station can monitor the power failure condition of each power distribution area branch in the power system in real time.
In the method for reporting the power failure event of the power system, the power bureau master station sends the power failure event prompt information to an ammeter user or a power worker to which the ammeter belongs in a short message form; or/and each electric meter is in wireless communication connection with a power concentrator, and the power concentrator is in wireless communication connection with a power office master station.
In the method for reporting the power failure event of the power system, the capacitor device is embedded in the wireless communication device; or/and the power concentrator is connected with the power station master station in a power line communication mode.
Preferably, in the method for reporting a power failure event of an electric power system, the capacitor device is a super capacitor; or/and the wireless communication device is maintained to be in a shorter working time due to the charging of the capacitance device than the normal working time of the power concentrator.
Further, the method for reporting the power failure event of the power system further includes the following steps a1 to a 5:
a1, regarding a plurality of electric meters on each district branch in the electric power system, taking the electric meter with a capacitance device and a communication device on each district branch as a key node electric meter of the corresponding district branch;
step a2, the power concentrator respectively receives and records power failure event prompt information sent by each key node ammeter for multiple times, and power failure event prompt information historical records for each key node ammeter are respectively and correspondingly formed;
a3, screening the key node electric meters with the maximum correct probability of the sent power failure event prompt information as core node electric meters on the branch of the distribution area corresponding to the key node electric meters by the power concentrator according to the power failure event prompt information historical records corresponding to the key node electric meters, and only receiving the power failure event report information of the core node electric meters by the power concentrator;
step a4, when any district branch in the power system has a power failure, recording the power failure time of the ammeter on the district branch, switching the task of reporting the power failure time of the district branch to the core node ammeter on the district branch, and only allowing the core node ammeter on the corresponding district branch to send power failure event reporting information to the power concentrator;
and a5, the power concentrator sends the information of the power failure event of the corresponding distribution area branch to the power station master station for processing.
In step a4, the core node electric meters on the corresponding distribution room branches respectively send power failure event prompt information to the power concentrator according to a preset sending sequence.
And then, the method for reporting the power failure event of the power system further comprises the following steps: the power bureau master station sends communication information of power failure events of corresponding distribution areas to each electric meter user corresponding to the distribution areas; or/and the method for reporting the power failure time of the power system further comprises the following steps: and the power station master station judges and obtains a power failure section of the power failure event on the distribution room branch according to the power failure event information sent by the power concentrator.
Further, in a further improvement, the method for reporting the power failure event of the power system further includes the following steps b1 to b 3:
b1, acquiring and storing the accumulated power failure times of the branch of the region and the power failure events of the last preset times every day by the core node electric meters on the branches of the region;
b2, the power concentrator sequentially collects and stores the power failure events of the accumulated power failure times of the corresponding distribution area branches stored by each core node ammeter and the last preset times every day according to a preset collection sequence;
and b3, reporting the power failure events of the accumulated power failure times of the branches of each district stored in the step a2 and the last preset times to the master station of the power bureau by the power concentrator every day.
In another improvement, the method for reporting the power failure event of the power system further includes: and when the real-time voltage of the capacitor device reaches the corresponding normal working voltage of the wireless communication device, the wireless communication device reminds that the normal working voltage is reached.
Compared with the prior art, the invention has the advantages that:
firstly, according to the method for reporting the power failure event of the power system, a chargeable capacitor device is additionally arranged on a power line, and a wireless communication device is additionally arranged, so that the capacitor device continuously receives the charging process of the power line when the power failure event does not occur, once the power line where an ammeter is located has a power failure, the fully charged capacitor device immediately supplies power to the wireless communication device, the wireless communication device can be charged, and the wireless communication connection with the power line is maintained, so that the wireless communication device timely sends the corresponding power failure event information to a power concentrator for processing at the first time of the power failure, and the power concentrator timely forwards the power line power failure event information to a power station master station, and the power station timely sends people to a power-failure station branch for maintenance;
secondly, the communication between each wireless communication device and the power concentrator in the power system and the communication method between the power concentrator and the power station master station are set to be wireless communication modes according to needs to replace the traditional power line communication connection mode, so that even if power lines at any position in the power system are powered off, the communication between the wireless communication devices and the power concentrator and the communication between the power concentrator and the power station master station are not influenced by the power failure event, the communication connection between the wireless communication devices and the power concentrator and the power station master station can be continuously carried out, and the timely report of the power failure event in the system can be more stably and continuously realized;
and then, aiming at the actual situation that a large number of electric meters are usually arranged in the power system, the electric meters with a capacitance device and a wireless communication device are used as key node electric meters in the branch of the transformer area, and the power concentrator selects the key node electric meter with the maximum correct probability of sending the power failure event prompt information from the key node electric meters as the core node electric meters on the branch of the transformer area corresponding to the key node electric meter, so that the power concentrator only receives the power failure event information sent by the core node electric meters, the instantaneous network impact on the power concentrator caused by the fact that the power failure event information sent by all the electric meters needs to be received by the power concentrator in the traditional method is avoided, the network blockage between each electric meter and the power concentrator is further avoided, and the reporting efficiency of the power line power failure event information is effectively improved.
Drawings
FIG. 1 is a schematic diagram of an electrical power system in an embodiment of the invention;
fig. 2 is a flowchart illustrating a method for reporting a power outage event of an electric power system according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 2, the method for reporting a power failure event of an electric power system in this embodiment is used for an electric power system formed by a plurality of electric meters, an electric power concentrator 2, and an electric power office 3 master station, where each electric meter is in communication connection with the electric power concentrator 2, and the electric power concentrator 2 is in communication connection with the electric power office 3 master station; at least one electric meter is internally provided with a wireless communication device and a capacitor device for storing electric quantity, the input end of the capacitor device is electrically connected with a power line where the electric meter is positioned, and the output end of the capacitor device is connected with the wireless communication device; the capacitor device is charged through a power line; the power system is shown in figure 1. Specifically, the method for reporting the power failure event of the power system in this embodiment includes the following steps 1 to 4:
step 1, aiming at an ammeter with a capacitor device, under the condition that a power line where the ammeter is located is not powered off, the power line charges the capacitor device, so that electric quantity is stored in the capacitor device;
in the embodiment, the capacitor device is embedded in the wireless communication device, and the capacitor device adopts a super capacitor; as well known to those skilled in the art, the term supercapacitor refers to a new type of energy storage device between a conventional capacitor and a rechargeable battery, and the capacity of the energy storage device can reach several hundreds to thousands of methods; compared with the traditional capacitor, the super capacitor has larger capacity, specific energy or power density, wider working temperature range and extremely long service life, and the power density can reach 102-104W/kg; compared with a storage battery, the super capacitor has higher specific power and has no pollution to the environment; in view of the fact that supercapacitors are well known to those skilled in the art, they will not be described in detail herein;
the power concentrator and the power station master station in the embodiment can be connected in a power line communication mode or a wireless communication mode; of course, the power concentrator and the power station master station in this embodiment are preferably in wireless communication connection, so that data transmission between the power concentrator and the power station master station is not adversely affected by power failure of the power line; similarly, each electric meter and the power concentrator are also connected in a wireless communication mode, so that the adverse effect of power line power failure events on data transmission between the electric meters and the power concentrators is avoided;
it should be noted that, in the embodiment, the operation time of the wireless communication device maintained due to the charging of the capacitor device is shorter than the normal operation time of the power concentrator, so as to ensure that the power failure event information sent by the wireless communication device can be received by the power concentrator, and the power failure event information sent by the wireless communication device is not missed to be received because the power concentrator is powered off in advance;
step 3, the power concentrator obtains the zone branch of the power line with the power failure event according to the received power failure event, and sends the prompt information of the power failure event of the zone branch to the power station master station;
and 4, the power station master station timely sends power workers to the power distribution area branch corresponding to the power failure event for power failure repair according to the power failure event prompt information sent by the power concentrator, so that the power station master station can monitor the power failure condition of each power distribution area branch in the power system in real time. Of course, the power bureau master station can also send the power failure event prompt message to the electricity meter user or the power worker to which the electricity meter belongs in a short message form.
In this embodiment, when the real-time voltage of the capacitor device reaches the normal operating voltage of the corresponding wireless communication device, the wireless communication device gives a prompt that the normal operating voltage has been reached, so as to facilitate the outside to know whether the current wireless communication device can receive the charging process of the corresponding capacitor device.
In addition, in practical situations, a large number of electric meters are usually arranged in an electric power system, and once a power line has a power failure, the large number of electric meters can simultaneously send power failure event information to the power concentrator, so that the power concentrator needs to receive the power failure event information sent by all the electric meters to cause instantaneous network impact on the power concentrator, a network between each electric meter and the power concentrator is seriously blocked, and the reporting efficiency of the power line power failure event information is seriously affected. In order to avoid the instantaneous network impact on the power concentrator caused by the reporting of the power line outage event information, the following steps a1 to a5 are further adopted in the embodiment to avoid the adverse effect of the instantaneous network impact on the power concentrator. Wherein the steps a1 to a5 are as follows:
step a1, aiming at a plurality of electric meters on each district branch in the electric power system, taking the electric meters with capacitance devices and communication devices on each district branch as key node electric meters of the corresponding district branch;
for example, referring to fig. 1, assuming that electric meters 111 and 112 on the first district branch each have a capacitive device and a communication device, and electric meters 113 and 114 on the first district branch each have no capacitive device and no communication device, electric meters 111 and 112 are taken as key node electric meters on the first district branch;
similarly, assuming that meters 122 and 123 on the second leg each have a capacitive device and a communication device, and meters 121, 124 and 125 on the second leg each have no capacitive device and communication device, meters 122 and 123 are considered critical node meters on the second leg;
assuming that the meter 133 on the third district branch has a capacitance and communication device, and the meters 131 and 132 on the third district branch have no capacitance and communication device, the meter 133 is taken as a key node meter on the third district branch;
step a2, the power concentrator 2 respectively receives and records the power failure event prompt information sent by each key node electricity meter for multiple times, and respectively forms power failure event prompt information historical records aiming at each key node electricity meter;
specifically, referring to fig. 1, the power concentrator receives and records the power outage event prompt information sent by the key node electric meters 111 for multiple times, and forms a power outage event prompt information history record for the key node electric meters 111; likewise, the power concentrator forms a power outage event cue information history for the key node meters 112, forms a power outage event cue information history for the key node meters 122, forms a power outage event cue information history for the key node meters 123, and forms a power outage event cue information history for the key node meters 133;
step a3, the power concentrator 2 screens out the key node electric meters with the maximum correct probability of the sent power failure event prompt information as core node electric meters on the distribution area branch corresponding to the key node electric meters according to the power failure event prompt information historical records corresponding to the key node electric meters, and the power concentrator only receives the power failure event report information of the core node electric meters;
for example, in fig. 1, for two key node meters, namely, a key node meter 111 and a key node meter 112, on a first district branch, if the power concentrator determines that the power failure event prompt message sent by the key node meter 111 has the maximum correct probability, the key node meter 111 is used as a core node meter on the first district branch, so that the power concentrator only receives the core node meter, that is, the power failure event report message of the meter 111;
similarly, for the two key node electricity meters, namely the key node electricity meter 122 and the key node electricity meter 123, on the second district branch, if the power concentrator determines that the power failure event prompt message sent by the key node electricity meter 122 has the maximum correct probability, the key node electricity meter 122 is used as the core node electricity meter on the second district branch, so that the power concentrator only receives the core node electricity meter, namely the power failure event report message of the electricity meter 122;
for the key node electricity meters 133 on the third district branch, the electricity concentrator uses the key node electricity meters 133 as core node electricity meters on the third district branch, so that the electricity concentrator only receives the core node electricity meters, namely the reported information of the power failure events of the electricity meters 133;
step a4, when any district branch in the power system has a power failure, recording the power failure time of the ammeter on the district branch, switching the task of reporting the power failure time of the district branch to the core node ammeter on the district branch, and only allowing the core node ammeter on the corresponding district branch to send power failure event reporting information to the power concentrator;
step a5, the power concentrator sends the information of the power failure event of the corresponding distribution area branch to the power station master station for processing.
Of course, for step a4 in this embodiment, the core node meters on each corresponding zone branch may respectively send the power outage event notification information to the power concentrator according to the preset sending sequence.
In this embodiment, the power office master station may further send the communication information of the power failure event occurring in the corresponding distribution area to each electricity meter user corresponding to the distribution area, so that the electricity meter users can take measures to cope with the power line power failure event that has occurred.
In addition, in order to facilitate the power station staff to accurately locate the power line position where the power failure occurs, in the method for reporting the power system power failure event in this embodiment, the power station master station may determine the power failure section where the power failure event occurs on the distribution room branch according to the power failure event information sent by the power concentrator, so as to inform the power station staff of the obtained power failure section.
In this embodiment, the following steps b1 to b3 are further added to ensure the completeness and reliability of data acquisition for each electric meter, so as to avoid that the power failure event information cannot be reported to the power office master station in time due to a problem occurring in the communication link at the power concentrator. Wherein, the steps b1 to b3 are as follows:
b1, acquiring and storing the accumulated power failure times of the branch of the affiliated distribution area and the power failure events of the last preset times by the core node electric meters on the branches of the distribution areas every day;
step b2, the power concentrator sequentially collects and stores the power failure events of the accumulated power failure times of the corresponding distribution area branches stored by each core node ammeter and the last preset times every day according to a preset collection sequence;
and b3, the power concentrator reports the power failure events of the accumulated power failure times of the branches of each district stored in the step a2 and the last preset times to the master station of the power bureau every day.
Although preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method for reporting power failure events of a power system is used for the power system formed by a plurality of electric meters, a power concentrator and a power office master station, wherein each electric meter is in communication connection with the power concentrator, and the power concentrator is in communication connection with the power office master station; at least one electric meter is internally provided with a wireless communication device and a capacitor device for storing electric quantity, the input end of the capacitor device is electrically connected with a power line where the electric meter is positioned, and the output end of the capacitor device is connected with the wireless communication device; the method for reporting the power failure event of the power system is characterized by comprising the following steps 1 to 4:
step 1, aiming at an electric meter with a capacitor device, under the condition that a power line where the electric meter is positioned is not powered off, the power line charges the capacitor device, so that electric quantity is stored in the capacitor device;
step 2, the wireless communication device of the ammeter detects the power line where the ammeter is located in real time, and when the wireless communication device detects that the power line where the corresponding ammeter is located has a power failure, the capacitor device storing the electric quantity immediately supplies power to the wireless communication device, and the wireless communication device sends power failure event information to the power concentrator in a wireless mode; the power failure event information comprises a power failure event and the time corresponding to the power failure event;
step 3, the power concentrator obtains the power line zone branch of the power line with the power failure event according to the received power failure event, and sends the prompt information of the power failure event of the power line zone branch to the power station master station; wherein, the following steps a1 to a5 are also included between the step 3 and the step 2:
a1, regarding a plurality of electric meters on each district branch in the electric power system, taking the electric meter with a capacitance device and a communication device on each district branch as a key node electric meter of the corresponding district branch;
step a2, the power concentrator respectively receives and records power failure event prompt information sent by each key node ammeter for multiple times, and power failure event prompt information historical records for each key node ammeter are respectively and correspondingly formed;
a3, screening the key node electric meters with the maximum correct probability of the sent power failure event prompt information as core node electric meters on the branch of the distribution area corresponding to the key node electric meters by the power concentrator according to the power failure event prompt information historical records corresponding to the key node electric meters, and only receiving the power failure event report information of the core node electric meters by the power concentrator;
step a4, when any district branch in the power system has a power failure, recording the power failure time of the ammeter on the district branch, switching the task of reporting the power failure time of the district branch to the core node ammeter on the district branch, and only allowing the core node ammeter on the corresponding district branch to send power failure event reporting information to the power concentrator;
step a5, the power concentrator sends the information of the power failure event of the corresponding distribution room branch to the power station master station for processing;
and 4, the power station master station timely sends power workers to the power distribution area branch corresponding to the power failure event for power failure repair according to the power failure event prompt information sent by the power concentrator, so that the power station master station can monitor the power failure condition of each power distribution area branch in the power system in real time.
2. The method for reporting the power failure event of the power system as claimed in claim 1, wherein the power office master station sends the power failure event prompt message to a power meter user or a power worker to which the power meter belongs in a form of a short message; or/and each electric meter is in wireless communication connection with a power concentrator, and the power concentrator is in wireless communication connection with a power office master station.
3. The method according to claim 1, wherein the capacitor device is embedded in the wireless communication device; or/and the power concentrator is connected with the power station master station in a power line communication mode.
4. The method according to claim 1, wherein the capacitive device is a super capacitor; or/and the wireless communication device is maintained to be in a shorter working time due to the charging of the capacitance device than the normal working time of the power concentrator.
5. The method for reporting a blackout event of an electric power system according to claim 4, wherein in step a4, the core node electric meters in the corresponding distribution room branches respectively send blackout event prompting messages to the electric power concentrator according to a preset sending sequence.
6. The method for reporting a blackout event of an electric power system according to claim 1, further comprising: the power bureau master station sends communication information of power failure events of corresponding distribution areas to each electric meter user corresponding to the distribution areas; or/and the method for reporting the power failure time of the power system further comprises the following steps: and the power station master station judges and obtains a power failure section of the power failure event on the distribution room branch according to the power failure event information sent by the power concentrator.
7. The method for reporting a blackout event of an electric power system as claimed in claim 1, further comprising steps b1 to b 3:
b1, acquiring and storing the accumulated power failure times of the branch of the region and the power failure events of the last preset times every day by the core node electric meters on the branches of the region;
b2, the power concentrator sequentially collects and stores the power failure events of the accumulated power failure times of the corresponding distribution area branches stored by each core node ammeter and the last preset times every day according to a preset collection sequence;
and b3, reporting the power failure events of the accumulated power failure times of the branches of each district stored in the step a2 and the last preset times to the master station of the power bureau by the power concentrator every day.
8. The method for reporting a blackout event of an electric power system according to claim 1, further comprising: and when the real-time voltage of the capacitor device reaches the corresponding normal working voltage of the wireless communication device, the wireless communication device reminds that the normal working voltage is reached.
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| CN109510307A (en) * | 2018-09-21 | 2019-03-22 | 国网重庆市电力公司电力科学研究院 | A kind of household electrical appliance power failure reporting device and system based on bandwidth carrier |
| CN109742854A (en) * | 2018-12-27 | 2019-05-10 | 国网吉林省电力有限公司电力科学研究院 | It is a kind of that method is actively reported for repairment based on intelligent electric meter data processing |
| CN110267126A (en) * | 2019-06-25 | 2019-09-20 | 宁波三星医疗电气股份有限公司 | A kind of wireless communication device |
| CN110568236B (en) * | 2019-07-24 | 2022-04-15 | 浙江华云信息科技有限公司 | Low-power-consumption intelligent electric energy meter communication bin |
| CN110491111B (en) * | 2019-07-24 | 2021-12-07 | 浙江华云信息科技有限公司 | Built-in communication storehouse is directly adopted to smart electric meter based on wireless private network of 230MHz electric power |
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| CN111007354A (en) * | 2019-12-03 | 2020-04-14 | 江苏智臻能源科技有限公司 | Power-off fault real-time positioning method for distribution room based on power acquisition terminal |
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| CN113567721B (en) * | 2021-07-30 | 2023-04-28 | 宁波三星医疗电气股份有限公司 | Power failure statistics method for intelligent ammeter |
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| CN204258440U (en) * | 2014-11-28 | 2015-04-08 | 国家电网公司 | Low pressure blackouts monitoring terminal |
| CN105119378B (en) * | 2015-09-09 | 2019-01-11 | 国网浙江省电力公司湖州供电公司 | Low-voltage distributing line on-line monitoring system |
| CN105866527A (en) * | 2016-03-18 | 2016-08-17 | 武汉盛帆电子股份有限公司 | Intelligent electric energy meter with power failure event reporting function and application system thereof |
| CN107809139A (en) * | 2017-09-28 | 2018-03-16 | 南京林洋电力科技有限公司 | A kind of user's power-off event report method based on low-voltage power line bandwidth carrier |
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