CN206193228U - Remote online detection system for metering performance of electronic electric energy meter - Google Patents
Remote online detection system for metering performance of electronic electric energy meter Download PDFInfo
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- CN206193228U CN206193228U CN201621124208.5U CN201621124208U CN206193228U CN 206193228 U CN206193228 U CN 206193228U CN 201621124208 U CN201621124208 U CN 201621124208U CN 206193228 U CN206193228 U CN 206193228U
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Abstract
The utility model provides a long-range on-line measuring system of electronic type electric energy meter measurement performance, including the on-the-spot terminal that is used for on-the-spot collection electric wire netting voltage current data and receives the electric energy pulse that the electronic type electric energy meter of waiting to examine sent and be used for receiving electric wire netting voltage current data and the electric energy pulse that the electronic type electric energy meter of waiting to examine sent and carry out data processing, realize treating the long-range automation of examining electronic type electric energy meter and detect the main website; the field terminal is provided with a voltage and current measuring interface connected with a voltage transformer and/or a current transformer, an electric energy meter access interface connected with an electronic electric energy meter to be detected, and an optical fiber interface and/or a 4G network interface connected with a remote automatic detection main station. Implement the utility model discloses, simple structure not only realizes electronic type electric energy meter remote on-line measuring and failure diagnosis, can break through traditional verification method moreover, and the operation of will checking divide into on-the-spot data acquisition and long-range data processing back, realizes examining and determine in the lump.
Description
Technical Field
The utility model relates to an electric energy measurement technical field especially relates to a long-range on-line measuring system of electronic type electric energy meter measurement performance.
Background
The electric energy metering is one of the most important daily management works in electric power application, and the electric energy is metered throughout the whole process of electric power production, transmission and use, namely from power generation, transmission, distribution to final power utilization. In order to ensure fairness, justness and openness of electric energy metering, under the large background that laws and regulations clearly require electric energy metering work and smart grid construction, not only increasingly and periodically checking electric energy meters in operation, but also timely maintaining and processing the operation state, possible problems and the like of the electric energy meters need to be carried out. With the rapid development of power system automation, intellectualization, computer technology and digital communication technology, power supply enterprises have constructed automatic systems for electric energy metering. However, the existing automatic system for electric energy metering does not have the function of remote online detection of the electronic electric energy meter, and the electronic electric energy meter is still periodically inspected or periodically checked on site in a traditional manner, but the workload of operation and maintenance of the electric energy meter is increased, so that the operation and maintenance manpower under the existing system is difficult to meet the requirements, and meanwhile, the existing automatic system for electric energy metering is unreasonable in setting of fault judgment conditions, so that abnormal alarms are not only multiple in types and low in accuracy, but also are huge in quantity, so that a power supply management department is difficult to accurately judge authenticity and accuracy of all events and fault alarm information in time, and further cannot perform deep analysis on a large number of misreported events. Therefore, the remote inspection and diagnosis of the operation state of the on-site electronic electric energy meter can be scientifically and efficiently realized, the electronic electric energy meter with the problems can be detected, repaired or replaced in time, abnormal electricity utilization phenomena can be found and eliminated in time, and the method has very important practical significance for maintaining safe and stable operation of a power grid, constructing a harmonious electricity utilization environment, maintaining economic benefits of power generation, transmission, power supply and electricity utilization parties and the like.
In the prior art, a remote verification monitoring system for an electric energy metering device has been disclosed (design and implementation of tangyi and remote verification monitoring system for an electric energy metering device [ D ], university of electronic technology, 2012), and the system consists of on-site monitoring equipment, a communication network and a master station management center. Because the system needs to monitor a plurality of electric energy meters in the substation and the field monitoring equipment only has one voltage and current interface, the position of the voltage and the current of the power grid measured by the field monitoring equipment is not at the same position as the plurality of electric energy meters monitored by the field monitoring equipment, so errors are caused by different lead resistances at different positions, and the system adopts a local RS-232 serial communication network, a public telephone network, a wide area or local area network, a GSM/CDMA wireless network and the like for communication.
Meanwhile, the system is composed of a field electric energy meter intelligent calibrator, a field control network, a field control host, a monitoring network, a monitoring host and the like, can be connected with a plurality of electric energy meters, but has a complex structure, and the processing and analysis of the electric energy meter calibration data are completed in the field electric energy meter intelligent calibrator.
In addition, the utility model discloses an application number is 201520488110.7, the name is a utility model patent of electric energy metering device remote automatic monitoring check-up system, because the embedded standard electric energy meter of this system, when utilizing embedded standard electric energy meter to the electric energy meter of being examined to carry out online check-up, what actually realize is still the notion of on-the-spot check-up, and the effect of control and monitoring is only played to long-range main website.
It can be seen that the remote calibration system for the electric energy metering devices only adopts the technical means of remote control, and the calibration operation is completed by integrating the calibration operation in the independent device installed on the site, mainly because the accuracy grade of the independent device is easy to be determined by the traditional calibration method.
Therefore, a remote online detection system for measuring performance of an electronic electric energy meter is needed, which has a simple structure, realizes remote online detection and fault diagnosis of the electronic electric energy meter, can break through a traditional verification method, and divides verification operation into field data acquisition and remote data processing to realize verification together.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve provides a long-range on-line measuring system of electronic type electric energy meter measurement performance, and not only simple structure realizes long-range on-line measuring of electronic type electric energy meter and failure diagnosis, can break through traditional verification method moreover, and the operation of will checking is divided into on-the-spot data acquisition and long-range data processing back, realizes examination in the lump.
In order to solve the technical problem, the embodiment of the utility model provides a long-range on-line measuring system of electronic type electric energy meter metering performance is provided, long-range on-line measuring system of electronic type electric energy meter metering performance includes the on-the-spot terminal that is used for gathering electric wire netting voltage current data and receiving the electric energy pulse that the electronic type electric energy meter of waiting to examine sent and is used for receiving electric wire netting voltage current data and the electric energy pulse that the electronic type electric energy meter of waiting to examine sent and carry out data processing, realizes the remote automation to the long-range detection main website of the electronic type electric energy meter of waiting to examine; wherein,
the field terminal is provided with a voltage and current measurement interface which is connected with a voltage transformer and/or a current transformer used for measuring voltage and current data of a power grid, an electric energy meter access interface which is connected with an electronic electric energy meter to be detected, and an optical fiber interface and/or a 4G network interface which are connected with the remote automatic detection master station.
The field terminal comprises a main controller, a first acquisition board card, a second acquisition board card and a communication board card; wherein,
the main controller is respectively connected with the first acquisition board card, the second acquisition board card and the communication board card and is formed by an ARM chip and a peripheral circuit thereof;
the voltage and current measurement interface is arranged on the first acquisition board card, and the first acquisition board card is formed by a high-speed acquisition AD digital-to-analog converter chip and a peripheral circuit thereof;
the second acquisition board card is provided with the electric energy meter access interface, and the electric energy meter access interface comprises an electric energy meter communication interface and an electric energy meter pulse interface; the second acquisition board card (13) is formed by a DSP chip and a peripheral circuit thereof;
the communication board card is provided with the optical fiber interface and/or the 4G network interface and is formed by another DSP chip and a peripheral circuit thereof.
The electric energy meter on the second acquisition board card is connected with the electronic electric energy meter through an RS-485 bus to realize communication, and the electric energy meter on the second acquisition board card is connected with the electronic electric energy meter through a pulse test line to realize pulse data reception.
The field terminal also comprises a data storage board card connected with the main controller, and the data storage board card is formed by a FLASH memory and a peripheral circuit thereof.
Implement the embodiment of the utility model provides a, following beneficial effect has:
when the remote online detection system for measuring performance of the electronic electric energy meter detects the electronic electric energy meter to be detected, the field terminal collects and records voltage and current data of a power grid, simultaneously receives electric energy pulses sent by the electronic electric energy meter to be detected in the same time period, uploads the electric energy pulses to the remote automatic detection master station through the optical fiber or the 4G communication network, and the remote automatic detection master station calculates, analyzes and processes the electric energy pulses to realize remote detection of the electronic electric energy meter to be detected; meanwhile, the field terminal can also read the measurement data of the electronic electric energy meter to be detected and upload the measurement data to a remote automatic detection master station, and the measurement data and the grid voltage and current collected by the field terminal are calculated, analyzed and compared, so that the diagnosis and the alarm of the faults of the electronic electric energy meter to be detected and the distribution transformer are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.
Fig. 1 is a schematic view of a system structure of a remote online measurement system for measuring performance of an electronic electric energy meter according to an embodiment of the present invention;
FIG. 2 is a system diagram of the field terminal of FIG. 1;
fig. 3 is a schematic diagram of another system configuration of the field terminal of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses the people discovers, the long-range check-up system of electric energy metering device all restricts the scene and detects among the prior art, do not really upgrade the thought that "long-range" detected, even if the application number is 201520488110.7, the name is the utility model patent of the long-range automatic monitoring check-up system of electric energy metering device, with this utility model patent embedded standard electric energy meter of system omit in, the check-up operation also restricts the scene and accomplishes, and in the electric energy meter measurement field, also never appear separating data acquisition and data processing for the scene and the mode that the remote processing goes on. Therefore, the utility model discloses the people provides a new long-range on-line measuring system of electronic type electric energy meter metering performance that has the practicality, divide into on-the-spot data acquisition and long-range data processing with the operation of checking, need break through traditional verification method when examining and determine it, examine and determine this system and remote automation detection software and communication network instrument in the lump to be different from the long-range check-up system of electric energy metering device among the prior art.
As shown in fig. 1 and fig. 2, for the embodiment of the present invention, the provided remote online detection system for measuring performance of an electronic energy meter includes a field terminal 1 for collecting grid voltage and current data on site and receiving an electric energy pulse sent by the electronic energy meter to be detected, and a remote automatic detection master station 2 for receiving grid voltage and current data and processing the electric energy pulse sent by the electronic energy meter to be detected, so as to realize remote detection of the electronic energy meter to be detected; wherein,
the field terminal 1 is provided with a voltage and current measurement interface A connected with a voltage transformer and/or a current transformer for measuring voltage and current data of a power grid, an electric energy meter access interface B connected with an electronic electric energy meter to be detected, and an optical fiber interface and/or a 4G network interface C connected with the remote automatic detection master station 2.
It can be understood that the voltage and current measurement interface a on the field terminal 1 may be connected to the power grid after being connected to the voltage transformer and/or the current transformer through a cable, and is used to obtain the voltage and current data of the power grid; the electric energy meter access interface B is connected with the electronic electric energy meter to be detected through a corresponding data line and is used for receiving electric energy pulses and corresponding communication signals sent by the electronic electric energy meter to be detected; the optical fiber interface is connected with the remote automatic detection master station 2 through an optical fiber and/or a 4G network interface C in a wireless 4G communication mode, and is used for receiving power grid voltage and current data and electric energy pulses sent by the electronic electric energy meter to be detected and carrying out data processing. Therefore, the mode of separating data acquisition and data processing into field acquisition and remote processing is realized.
Further, the field terminal 1 (as shown in fig. 2) includes a main controller 11, a first acquisition board 12, a second acquisition board 13, and a communication board 14; wherein,
the main controller 11 is respectively connected with the first acquisition board card 12, the second acquisition board card 13 and the communication board card 14, and the main controller 11 is formed by an ARM chip and a peripheral circuit thereof and is used for controlling each board card in the field terminal 1 to communicate;
the first acquisition board 12 is provided with a voltage and current measurement interface a, and the first acquisition board 12 is formed by a high-speed acquisition AD digital-to-analog converter chip and a peripheral circuit thereof, and is used for acquiring a voltage and current signal of a power grid and performing digital-to-analog conversion;
the second acquisition board card 13 is provided with an electric energy meter access interface B, and the electric energy meter access interface B comprises an electric energy meter communication interface B1 and an electric energy meter pulse interface B2; the second acquisition board card 13 is formed by a DSP chip and a peripheral circuit thereof, and is used for communicating with the electronic electric energy meter to be detected and acquiring electric energy pulses sent by the electronic electric energy meter to be detected;
the communication board 14 is provided with an optical fiber interface C1 and/or a 4G network interface C2, and the communication board 14 is formed by another DSP chip and a peripheral circuit thereof, and is configured to send a power grid voltage current signal and an electric energy pulse sent by the electronic electric energy meter to be detected to the remote automatic detection master station 2.
In one embodiment, the electric energy meter communication interface B1 on the second acquisition board 13 is connected with the electronic electric energy meter to be detected through an RS-485 bus to realize communication, and the electric energy meter pulse interface B2 on the second acquisition board 13 is connected with the electronic electric energy meter to be detected through a pulse test line to realize pulse data reception.
Furthermore, as shown in fig. 3, the field terminal 1 further includes a data storage board 15 connected to the main controller 11, and the data storage board 15 is formed by a FLASH memory and its peripheral circuits.
The embodiment of the utility model provides an in long-range on-line measuring system's of electronic type electric energy meter working principle does: when the electronic electric energy meter to be detected is detected, the field terminal 1 collects and records voltage and current data of a power grid, simultaneously receives electric energy pulses sent by the electronic electric energy meter to be detected in the same time period, uploads the electric energy pulses to the remote automatic detection master station 2 through an optical fiber or a 4G communication network, and the remote automatic detection master station 2 calculates, analyzes and processes the electric energy pulses to realize remote detection of the electronic electric energy meter to be detected; meanwhile, the field terminal 1 can also read the measurement data of the electronic electric energy meter to be detected and upload the measurement data to the remote automatic detection master station 2, and the measurement data and the grid voltage and current collected by the field terminal 1 are calculated, analyzed and compared, so that the diagnosis and the alarm of the faults of the electronic electric energy meter to be detected and the distribution transformer device are realized.
Implement the embodiment of the utility model provides a, following beneficial effect has:
when the remote online detection system for measuring performance of the electronic electric energy meter detects the electronic electric energy meter to be detected, the field terminal collects and records voltage and current data of a power grid, simultaneously receives electric energy pulses sent by the electronic electric energy meter to be detected in the same time period, uploads the electric energy pulses to the remote automatic detection master station through the optical fiber or the 4G communication network, and the remote automatic detection master station calculates, analyzes and processes the electric energy pulses to realize remote detection of the electronic electric energy meter to be detected; meanwhile, the field terminal can also read the measurement data of the electronic electric energy meter to be detected and upload the measurement data to a remote automatic detection master station, and the measurement data and the grid voltage and current collected by the field terminal are calculated, analyzed and compared, so that the diagnosis and the alarm of the faults of the electronic electric energy meter to be detected and the distribution transformer are realized.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (4)
1. The remote online detection system for the metering performance of the electronic electric energy meter is characterized by comprising a field terminal (1) for collecting power grid voltage and current data on site and receiving electric energy pulses sent by the electronic electric energy meter to be detected, and a remote automatic detection master station (2) for receiving the power grid voltage and current data and the electric energy pulses sent by the electronic electric energy meter to be detected and carrying out data processing to realize remote detection on the electronic electric energy meter to be detected; wherein,
the field terminal (1) is provided with a voltage and current measurement interface for connecting a voltage transformer and/or a current transformer used for measuring voltage and current data of a power grid, and is also provided with an electric energy meter access interface for connecting an electronic electric energy meter to be detected, and an optical fiber interface and/or a 4G network interface for connecting the remote automatic detection master station (2).
2. The remote online measurement system for the metering performance of the electronic electric energy meter according to claim 1, wherein the field terminal (1) comprises a main controller (11), a first acquisition board card (12), a second acquisition board card (13) and a communication board card (14); wherein,
the main controller (11) is respectively connected with the first acquisition board card (12), the second acquisition board card (13) and the communication board card (14), and the main controller (11) is formed by an ARM chip and a peripheral circuit thereof;
the voltage and current measurement interface is arranged on the first acquisition board card (12), and the first acquisition board card (12) is formed by a high-speed acquisition AD digital-to-analog converter chip and a peripheral circuit thereof;
the second acquisition board card (13) is provided with the electric energy meter access interface, and the electric energy meter access interface comprises an electric energy meter communication interface and an electric energy meter pulse interface; the second acquisition board card (13) is formed by a DSP chip and a peripheral circuit thereof;
the optical fiber interface and/or the 4G network interface are/is arranged on the communication board card (14), and the communication board card (14) is formed by another DSP chip and a peripheral circuit thereof.
3. The system for remotely detecting the metering performance of the electronic electric energy meter on line according to claim 2, wherein the electric energy meter communication interface on the second acquisition board card (13) is connected with the electronic electric energy meter to be detected through an RS-485 bus to realize communication, and the electric energy meter pulse interface on the second acquisition board card (13) is connected with the electronic electric energy meter to be detected through a pulse test line to realize pulse data reception.
4. A remote on-line detection system for the metering performance of an electronic electric energy meter according to claim 3, characterized in that the field terminal (1) further comprises a data storage board (15) connected to the main controller (11), the data storage board (15) being formed by a FLASH memory and its peripheral circuits.
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| CN106569165A (en) * | 2016-10-14 | 2017-04-19 | 深圳供电局有限公司 | Remote online detection system for metering performance of electronic electric energy meter |
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| CN106569165A (en) * | 2016-10-14 | 2017-04-19 | 深圳供电局有限公司 | Remote online detection system for metering performance of electronic electric energy meter |
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