CN113991859A - Method for realizing ammeter power failure sensing and reliable reporting based on HPLC technology - Google Patents
Method for realizing ammeter power failure sensing and reliable reporting based on HPLC technology Download PDFInfo
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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
- H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- 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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- 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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- 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
- H02J13/00026—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 involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
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- 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
- H02J13/00028—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 involving the use of Internet protocols
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
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- 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 discloses a method for realizing power failure sensing and reliable reporting of an electric meter based on an HPLC (high performance liquid chromatography) technology, belongs to the technical field of electric power centralized reading and power distribution, and aims to solve the problems that the traditional communication technology cannot dynamically sense and reliably report information in real time, and finally, the power failure fault is delayed to cause customer complaints. Which comprises the following steps: (1) the STA module senses the state information of the 220V zero-crossing signal and the weak electrical interface pin, and generates a power failure event if the state information accords with the study and judgment conditions; (2) the STA module is assisted by a bypass coupling unit to send the power failure event to the CCO module through a power line; (3) the CCO module acquires information, filters the information and uploads the information to the terminal equipment; (4) after processing the reported information, the terminal equipment uploads the processed reported information to the master station system through the 4G module; (5) and after receiving the reported information, the master station system generates a corresponding early warning dispatch list according to the definition of the power failure event, and prompts the dispatch list to be pushed to a receiver for processing through the information. The invention is suitable for power failure sensing and reliable reporting of the ammeter.
Description
Technical Field
The invention belongs to the technical field of electric power centralized reading and power distribution, and particularly relates to a method for realizing power failure sensing and reliable reporting of an electric meter based on an HPLC (high performance liquid chromatography) technology.
Background
Along with the continuous construction of national power grids in the field of smart power grids, the refinement of power grid management becomes a main trend, and meanwhile, the processing efficiency and the requirement of residential users on power consumption requirements and problems in the process are higher and higher, wherein the power failure service of the users is an important factor of the service quality of the power grids, and the important link for improving the customer experience, reducing and solving the complaints of the users is provided.
The traditional low-voltage power grid power failure fault first-aid repair mode is mainly 'after-treatment', the problems of passive waiting treatment, low treatment efficiency, large customer complaint risk, multiple potential safety hazards and the like exist, and even the practical cases that a user does not find power failure at home for a long time to cause continuation of power failure accidents and cause multiple damages to user property and equipment exist; with the continuous development of communication technologies, various communication technologies such as narrow-band carrier, micropower wireless, narrow-band-wireless dual-mode and the like appear in the industry to try to solve the problem, small-scale test is conducted in different scenes and sites to obtain a certain effect, but the universality is poor on the whole, the conditions of batch replication and popularization are not met, and the effect of the overall social and economic benefits is very small.
From the perspective of practical application of a user, high timeliness and high accuracy of power failure service processing are required; although the traditional narrow band has good accuracy on the communication effect level, the traditional narrow band is limited by the characteristics of low speed, high time delay and strong dependence on a communication medium, and cannot support the real-time requirement of power failure abnormal sensing service; the narrow-band effect of the micro-power wireless scheme is obviously improved, the power failure sensing and reporting services can be effectively improved to a certain extent, but the wireless scheme is very easily influenced by environmental factors and overall communication stability, the effect of small-scale application is not expected, and finally the batch popularization and application effect and the economic value are needed to be studied; although the narrow-band dual-mode theoretically can make up for the defects of a single scheme of narrow-band and wireless, the dual-mode on the market at present adopts narrow-band carrier waves and wireless, two independent networks are used for communication, perfect complementation of the narrow-band carrier waves and the wireless is not really made, more communication blind points still exist in real use, the investment cost of the narrow-band dual-mode is relatively high, and the service requirement of a power failure service of a user cannot be well solved on the aspects of economic benefit and practical application effect.
Therefore, the invention provides a method for realizing ammeter power failure sensing and reliable reporting based on the characteristics of high speed, large bandwidth, low time delay, strong adaptability and the like of the HPLC technology, realizes dynamic sensing of user power failure information, reports the information to a master station system accurately and reliably in real time, achieves real-time reliable monitoring of the user power failure information, effectively solves the problems of low processing quality and low efficiency and user complaint caused by the lag of user power failure information acquisition, and better supports the service requirements of refined, rationalized and scientific management of the current power grid while improving the service guarantee capability of a client.
Disclosure of Invention
The problem of customer complaints caused by power failure fault maintenance lag is finally solved in order to solve the problem that the conventional communication technologies such as the current narrow-band, wireless and narrow-band dual-mode cannot dynamically sense and reliably report information in real time after the power failure of the existing user electric energy meter. The invention provides a method for realizing ammeter power failure sensing and reliable reporting based on an HPLC (high performance liquid chromatography) technology, which is characterized in that under the condition that an HPLC carrier module (STA) is matched with a bypass coupling unit, 220V power failure information, an ammeter 12V power supply and other multi-dimensional information are researched and judged, the research and judgment results are reliably, real-timely and efficiently transmitted to an HPLC (high performance liquid chromatography) routing module (CCO), the CCO carries out certain judgment and screening, effective information is reported to a terminal, the terminal uploads the effective information to a main station through a wireless public network module (such as a 4G module), and finally the main station forms an early warning dispatching list for fault emergency repair. The method can quickly, reliably, accurately sense and monitor the abnormal power failure information of the user in real time, realize 'active first-aid repair, advanced first-aid repair, guidance first-aid repair and prejudgment first-aid repair' of power failure faults, assist the lean management level of a power grid and really realize the initiative and timeliness of the first-aid repair.
The technical scheme adopted by the invention is as follows:
a method for realizing ammeter power failure perception and reliable reporting based on an HPLC technology comprises the following steps:
(1) the STA module of the carrier electric energy meter senses a 220V zero-crossing signal and state information of a 12V-STA module-GND pin of a weak current interface, and generates a power failure event if the state information accords with a study and judgment condition;
(2) the STA module is assisted by a bypass coupling unit to send the power failure event to the CCO module in a power line broadcasting mode;
(3) the CCO module acquires power failure event information through an HPLC technology by relying on a power line, and uploads the power failure event information to the terminal equipment after effective filtering;
(4) the terminal equipment processes the reported power failure event information and uploads the power failure event information to the master station system through the 4G module;
(5) and after receiving the power failure event information reported by the terminal equipment, the master station system generates a corresponding early warning dispatch list according to the power failure event definition, and pushes the power failure event to a receiver for processing through information reminding, so that the power failure event is solved.
Furthermore, the CCO module performs uplink communication through a URAT serial port to complete data interaction with the terminal equipment, and performs downlink communication through a power line to complete data interaction with the STA module;
the STA module finishes data interaction with the CCO module through a power line in an uplink mode, and finishes data interaction sensing with the carrier electric energy meter through a UART serial port in a downlink mode.
Furthermore, the URAT serial port rate is 115200bps, and the power line transmission rate is 2 Mbps.
Further, the capacitance value of the super capacitor adopted by the circuit of the STA module is 15F.
Further, the STA module in step 2 realizes that the outage event is reliably transmitted to the CCO module by 100% in the following ways and conditions:
generally speaking, in order to ensure that the power failure perception is reported 100% reliably, the STA module carries out multi-dimensional research and consideration on aspects such as key component type selection, hardware circuit design and software function construction, and the power failure perception service requirements of all scenes are really met.
Firstly, a super capacitor is a necessary device for realizing power failure sensing reporting service for an STA module, in order to cover various scene requirements, the capacity value of the STA module reaches 15F (the normal standby power can reach more than 70 seconds and far exceeds 30 seconds required by a national network), a special charging and discharging circuit design is adopted, the life cycle of a capacitor device is guaranteed, meanwhile, the charging and discharging frequency can reach 50 thousands of times, the module is ensured to completely meet various scene applications, and reliable standby power support is provided for the power failure sensing and reporting service.
Secondly, the application scenes are complex and various, the power failure reporting service HPLC under the normal scene can be well supported, but the following special conditions can not be reported reliably:
firstly, after the partial air is disconnected, the physical link medium is completely disconnected;
and secondly, other adjacent STA module nodes cannot receive the coupling signal of the STA module node, and the STA module node cannot report the power failure sensing event reliably under the two conditions. The invention provides a STA module assisted by a bypass coupling unit (a communication product specially bridged over an air switch) to stably and reliably solve the problem of signal obstruction in the severe scene and ensure the reliable reporting of the power failure perception of the STA module node.
Finally, in the aspect of software function construction, the STA module based on the HPLC technology has a basic power failure sensing and identifying function, and can support the adaptive detection of a normal mode and a power failure mode on the aspect of software architecture design for really ensuring reliable reporting, and the module can be automatically switched to a low-power-consumption operation mode after power failure is identified and detected, so that the total power standby time is prolonged, and the reporting times are increased to improve the reporting success rate and reliability as much as possible. In addition, the STA module processing software in the power failure node adopts a time window waiting method capable of reducing channel collision, and the method greatly reduces the collision probability by prolonging the total time of random waiting and sending intervals and enhances the reporting reliability.
Based on the above aspects, the STA module provided by the present invention can complete accurate and reliable reporting of power outage sensing with the aid of the bypass coupling unit.
Furthermore, in the step 3, the CCO module effectively filters the received information and uploads the information to the terminal device through 1376.2 protocol, in this process, in order to ensure the overall effect of power failure perception reporting, after receiving the power failure information reported by the STA module, the CCO module locally gathers related information and then transmits the gathered information to the terminal through the URAT port.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the design concept of the bypass coupling unit is introduced and the selective organic combination of the bypass coupling unit and the STA module is innovatively provided to solve the problem that communication cannot be realized in extreme scenes, the corresponding method for the early-stage HPLC to deal with various power failure scenes is covered and supplemented, the reliable report of the power failure sensing event of a user is solved, further, the fault is accurately positioned, the rapid and active rush repair is realized, the efficiency is improved, the power utilization lean, scientific and close planning management level of the user is really improved, and the method has great social and economic values.
2. In the invention, in order to ensure the adaptability of more scenes, the STA module adopts a self-adaptive detection mechanism to switch the low-power-consumption mode in the aspect of software construction and design, thereby reducing the power consumption and prolonging the power consumption time; on the other hand, the STA module adopts a time window waiting method capable of reducing channel collision, and the method greatly reduces the collision probability by prolonging the total time of random waiting and sending intervals and enhances the reliability of reporting. Through the two software construction modes of the STA module, the 100% reliability of power failure reporting is ensured, and the rapid, accurate and fine management level of the whole power failure service flow is directly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:
FIG. 1 is an overall flow chart of the present invention;
fig. 2 is a schematic block diagram of a super capacitor standby circuit of the STA module according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: reference numerals and letters designate similar items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention usually place when in use, and are simply used for simplifying the description of the present invention, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; mechanical connection or electrical connection can be realized; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the two original pieces can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A method for realizing ammeter power failure perception and reliable reporting based on an HPLC technology comprises the following steps:
(1) the STA module of the carrier electric energy meter senses a 220V zero-crossing signal and state information of a 12V-STA module-GND pin of a weak current interface, and generates a power failure event if the state information accords with a study and judgment condition;
(2) the STA module is assisted by a bypass coupling unit to send the power failure event to the CCO module in a power line broadcasting mode;
(3) the CCO module acquires power failure event information through an HPLC technology by relying on a power line, and uploads the power failure event information to the terminal equipment after effective filtering;
(4) the terminal equipment processes the reported power failure event information and uploads the power failure event information to the master station system through the 4G module;
(5) and after receiving the power failure event information reported by the terminal equipment, the master station system generates a corresponding early warning dispatch list according to the power failure event definition, and pushes the power failure event to a receiver for processing through information reminding, so that the power failure event is solved.
Furthermore, the CCO module performs uplink communication through a URAT serial port to complete data interaction with the terminal equipment, and performs downlink communication through a power line to complete data interaction with the STA module;
the STA module finishes data interaction with the CCO module through a power line in an uplink mode, and finishes data interaction sensing with the carrier electric energy meter through a UART serial port in a downlink mode.
Furthermore, the URAT serial port rate is 115200bps, and the power line transmission rate is 2 Mbps.
Further, the capacitance value of the super capacitor adopted by the circuit of the STA module is 15F.
1. Fig. 1 is an overall flow of the technical solution of the present invention, which relates to various products including a master station, a terminal, a CCO module, an STA module (including a bypass coupling unit), and a carrier table, and the working steps in the overall flow are as follows:
1.1 the electricity meter has power failure fault due to some unknown factor, the STA module senses the power failure and conducts study and judgment, a power failure event is generated if the study and judgment conditions are met, and meanwhile the STA collects neighborhood node information.
1.2 after the STA module collects the relevant information, in order to enable the STA module to adapt to various complex scenes, the power failure event is sent to the CCO module in a power line broadcasting mode with 100% reliability under the cooperation of the bypass coupling unit.
1.3 the CCO effectively filters the received information and uploads the information to the terminal equipment through 1376.2 protocol, and meanwhile, the CCO can make information supplementary report according to the response condition of the terminal equipment.
And 1.4, after the terminal equipment carries out relevant processing on the reported information, uploading the processed information to the master station system through the 4G module.
1.5 after the master station receives the event information reported by the terminal, generating a corresponding early warning dispatch list according to the event definition, and pushing the dispatch list to a receiver for processing through information reminding or other forms, so that all power failure problems can be solved without omission.
2. Fig. 1 is a schematic diagram of a part marked by (ii) being an STA module and a bypass coupling unit, where hardware adaptation of the STA module and the bypass coupling unit solves the problem of communication performance in an extreme scene, but reliable reporting by the STA module requires effective cooperation of software function construction:
2.1 when the user ammeter has a power failure, the STA module firstly enters power failure state monitoring, on one hand, detection and judgment of 12V and 220V on the weak current side are carried out, on the other hand, detection and judgment of the STA and GND plug pin can be carried out, and power failure events are researched, judged and generated in two modes.
2.2 after the STA module completes related monitoring and research and judgment, the STA module enters an automatic detection mode of a power failure or normal operation mode, if the power failure is detected, the STA module enters a low-power-consumption operation mode, the standby power loss is reduced, the standby power time is prolonged, the standby power support is provided for the STA module to report for multiple times, and the reporting success rate is increased; if normal operation is detected, the STA module continues the current existing state to work normally.
2.3 after the STA module finishes the 2.2 mode detection, the module enters into relevant information aggregation and reporting, in the information reporting link, each STA module can comprehensively evaluate according to the information of the aggregation itself and the neighbor node, if a time window waiting method capable of reducing channel collision is determined to be started, the collision probability is greatly reduced by adopting a mode of prolonging the total time of random waiting and sending intervals, and the reporting reliability is enhanced.
Generally speaking, the STA module ensures the communication performance of the reporting channel by using the bypass coupling unit in addition to the hardware, the software ensures the rationality of the reporting logic by adopting the automatic detection of the working mode and the adaptive evaluation of the communication channel, and the reporting reliability is integrally improved by relying on the dual guarantee of the hardware and software modes.
3. Fig. 1 is a schematic diagram of data interaction between a CCO module and a terminal, where after receiving STA reported power failure information, the CCO reports the power failure information to the terminal normally after processing relevant data, and if the terminal does not respond or responds too slowly to the CCO reported information, in order to improve reliability of a final report result, the CCO employs a serial port complementary reporting mechanism, so as to maximally accommodate existing old terminals in the field, expand application universality, and ensure reliable reporting of carrier layer products.
The standby circuit in fig. 2 is a basic guarantee that the module normally works after power failure occurs, and is the most important link at the side of the STA module in the technical scheme of the present invention, on one hand, the standby circuit adopts a super capacitor with a super capacitance value of 15F, so that the standby time is increased from conventional 30s to at least 70s, and is long enough; on the other hand, the charge and discharge frequency of the super capacitor device can reach 50 ten thousand, the super capacitor device has a sufficiently long life cycle, and the service life of the super capacitor device is prolonged. The 15F ultra-large capacity value and the service life of 50 ten thousand times are guaranteed, and optimal support is provided for the STA module to report the power failure event reliably.
The above description is an embodiment of the present invention. The foregoing is a preferred embodiment of the present invention, and the preferred embodiments in the preferred embodiments can be combined and used in any combination if not obviously contradictory or prerequisite to a certain preferred embodiment, and the specific parameters in the embodiments and examples are only for the purpose of clearly illustrating the verification process of the invention and are not intended to limit the patent protection scope of the present invention, which is subject to the claims and all the equivalent structural changes made by the content of the description and the drawings of the present invention are also included in the protection scope of the present invention.
Claims (4)
1. A method for realizing ammeter power failure perception and reliable reporting based on an HPLC technology is characterized by comprising the following steps:
(1) the STA module of the carrier electric energy meter senses a 220V zero-crossing signal and state information of a 12V-STA module-GND pin of a weak current interface, and generates a power failure event if the state information accords with a study and judgment condition;
(2) the STA module is assisted by a bypass coupling unit to send the power failure event to the CCO module in a power line broadcasting mode;
(3) the CCO module acquires power failure event information through an HPLC technology by relying on a power line, and uploads the power failure event information to the terminal equipment after effective filtering;
(4) the terminal equipment processes the reported power failure event information and uploads the power failure event information to the master station system through the 4G module;
(5) and after receiving the power failure event information reported by the terminal equipment, the master station system generates a corresponding early warning dispatch list according to the power failure event definition, and pushes the power failure event to a receiver for processing through information reminding, so that the power failure event is solved.
2. The method for realizing ammeter power failure sensing and reliable reporting based on HPLC technology as claimed in claim 1, wherein said CCO module communicates with terminal equipment through URAT serial port in uplink, and completes data interaction with STA module through power line in downlink;
the STA module finishes data interaction with the CCO module through a power line in an uplink mode, and finishes data interaction sensing with the carrier electric energy meter through a UART serial port in a downlink mode.
3. The method for realizing meter power failure sensing and reliable reporting based on the HPLC technology as claimed in claim 2, wherein the URAT serial port rate is 115200bps, and the power line transmission rate is 2 Mbps.
4. The method for realizing meter power failure sensing and reliable reporting based on the HPLC technology as claimed in claim 1, wherein the capacitance of the super capacitor used by the circuit of the STA module is 15F.
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