CN207636653U - A Smart Electric Meter with Fault Remote Automatic Monitoring Function - Google Patents

Abstract

A kind of intelligent electric meter with the automatic monitoring function of fault remote, including display screen, processor and warning device, the processor is connect by main circuit breaker with power circuit, the processor is connect by load break switch with loaded line, the processor includes main control chip, current sampling device, temperature sensor, internal electric source, communication module and data processing module, the current sampling device is configured as acquisition current signal, the temperature sensor is configured as the temperature inside acquisition intelligent electric meter, the internal electric source is configured as powering to processor, the data processing module is analyzed the current signal received and temperature value compared with preset threshold value in intelligent electric meter, warning device is for sending out alarm signal, the processor is connect by communication module with external server.Intelligent electric meter monitoring accuracy provided by the utility model is high, cailure rate of false positives are low, easy to maintain quick.

Description

A Smart Electric Meter with Fault Remote Automatic Monitoring Function

technical field

The utility model relates to the technical field of electricity metering, in particular to an intelligent electric meter with the function of remote automatic monitoring of faults.

Background technique

According to the definition of the smart meter of the State Grid Corporation of China, the smart energy meter is composed of a measurement unit, a data processing module, a communication unit, etc., and has functions such as electric energy measurement, information storage and processing, real-time monitoring, automatic control, and information interaction.

According to the requirements of normative documents such as State Grid Q/GDW 354-2009 "Smart Energy Meter Functional Specifications", many domestic metering device manufacturers have produced smart energy meters that meet the functional and technical requirements. At present, the main functions involved in smart energy meters include: energy metering, energy billing, data storage, event recording, communication, signal output, display, measurement, anti-theft and electricity charge control and other functions.

It can be seen from the functions and relevant standards of the above-mentioned smart energy meters that the existing smart energy meters do not have the functions of remote fault monitoring and protection.

Typically, an electricity meter usually has one or more active wires from the main power line, one or more neutral wires and one or more load wires going to a domestic home or industrial premises, especially industrial meters usually have multiple wires from In the actual use of the circuit in the industrial environment, the fault may occur in any circuit or inside the instrument.

The patent US 2017/0131117 A1 monitors the temperature in the electric energy meter by setting a temperature alarm in the electric energy meter, and monitors the fault condition of the electric energy meter through the temperature change in the electric energy meter. The application only relies on the temperature change in the electric energy meter to judge the fault. Since the temperature is greatly affected by external environmental factors, the false alarm rate of the monitoring device is high and the monitoring accuracy is low. When a fault occurs, the energy meter cannot be repaired quickly, and the workload of the staff is relatively large.

In order to solve the above problems, the utility model is hereby proposed.

Utility model content

The purpose of the utility model is to provide a smart electric meter with high fault monitoring accuracy, convenient and fast maintenance and remote automatic fault monitoring function.

The technical solution of the utility model is realized in the following way: a smart meter with remote automatic fault monitoring function, the smart meter includes a display screen, a processor and an alarm device, the processor is connected to the power line through a main circuit breaker, The processor is connected to the load line through a load circuit breaker, the processor includes a main control chip, a current sampling device, a temperature sensor, an internal power supply, a communication module and a data processing module, and the current sampling device is configured to collect current signals , the temperature sensor is configured to collect the temperature inside the smart meter, the internal power supply is configured to supply power to the processor, and the data processing module compares the received current signal and temperature value with the preset threshold in the smart meter Analysis and comparison, the alarm device is used to judge whether an alarm signal needs to be sent according to the comparison result of the data processing module, and the processor is connected to an external server through a communication module.

Preferably, the preset thresholds in the smart meter include temperature thresholds and current thresholds.

Preferably, the processor further includes a storage device configured to collect and store historical data generated during the operation of the smart meter.

Preferably, the processor further includes a location module, and the location module can transmit the location and device number information of the faulty smart meter to an external server through the communication module.

Preferably, the smart meter can communicate with a second meter, the second meter has the same function settings as the smart meter, and the second meter can obtain the operating parameters of the smart meter to determine whether the smart meter is faulty.

Preferably, the communication module can transmit the information collected by the current sampling device and the temperature sensor to an external server.

Preferably, the communication module includes a CCD high-definition camera, a haze removal processing device and an image processor, and the CCD high-definition camera can shoot and output an image of a smart meter that sends a fault alarm, and the haze removal processing device is located at the Between the CCD high-definition camera and the image processor, the haze removal processing device can perform defogging processing on the image output by the CCD high-definition camera, and the communication module can transmit the image after the defogging processing to an external server .

Preferably, the processor can disconnect the main circuit breaker or the load circuit breaker according to the comparison result of the data processing module, and the server can generate a fault repair dispatch order according to the fault detection report and the location information of the smart meter.

The main control chip, communication module, data processing module and positioning module of the smart meter described in this application are all existing technologies. This application only creatively connects these modules to form new structures and functions to solve the problems of existing technologies. specific problems in .

Beneficial technical effects:

The utility model provides an intelligent electric meter with the function of remote automatic monitoring of faults, which judges the fault situation by using the variation of real-time monitoring values of temperature and current, and has high fault monitoring accuracy and low false alarm rate. The on-site detection process of the electric energy meter realizes convenient and fast maintenance when the electric energy meter fails.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a structural schematic diagram of a smart meter with remote automatic fault monitoring function of the present invention.

Fig. 2 is a flow chart of data processing of a smart meter with fault remote automatic monitoring function of the utility model

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the utility model discloses a smart meter with a remote automatic fault monitoring function. The smart meter includes a display screen, a processor and an alarm device. The processor is connected to the power line through a main circuit breaker. The processor is connected to the load line through a load circuit breaker, the processor includes a main control chip, a current sampling device, a temperature sensor, an internal power supply, a communication module and a data processing module, and the current sampling device is configured to collect current signals , the temperature sensor is configured to collect the temperature inside the smart meter, the internal power supply is configured to supply power to the processor, and the communication module can transmit the information collected by the current sampling device and the temperature sensor to an external server, so The data processing module analyzes and compares the received current signal and temperature value with the preset threshold in the smart meter, and the alarm device judges whether an alarm signal needs to be sent according to the comparison result of the data processing module, and the processor communicates with the communication module External server connection.

The working principle of the utility model is as follows: through the internal power supply, the smart meter is connected, and the smart meter collects the current value passing through the smart meter in real time and the temperature value inside the smart meter through a current sampling device and a temperature sensor, and the data The processing module processes, analyzes and compares the received current signal and temperature value with the preset threshold in the smart meter. If the analysis result of the data processing module is a fault, the analysis result is transmitted to the main control chip, and the main control chip The alarm device issues an alarm command to perform a fault alarm.

Preferably, the preset thresholds in the smart meter include a temperature threshold and a current threshold, the temperature threshold is a preset value, and the current threshold is a preset value.

Preferably, the data processing module can process the temperature value at time T to obtain the temperature change value at time T, and the temperature change value at time T is the difference between the first moving average temperature value and the second moving temperature average value, The first moving temperature average value is the average value of multiple temperature measurement values generated by the temperature sensor within the time period t1 before the time T, and the second moving average temperature value is the multiple temperature measurement values generated by the temperature sensor within the time period t1 after the time T. The average value of temperature measurement values, the T time is any specific time, and the t1 is a preset value.

Preferably, the data processing module can process the current value at time T to obtain the current change value at time T, and the current change value at time T is the difference between the first moving current average value and the second moving current average value, The first moving average value of the current is the average value of the multiple current measurement values generated by the current sampling device within the time period t1 before the time T, and the second moving average value of the current is generated by the current sampling device within the time period t1 after the time T The average value of multiple current measurement values, the T time is any specific time, and the t1 is a preset value.

Further, as shown in Figure 2, at time T, after the data processing module receives the temperature value collected by the temperature sensor, it first processes the temperature value at time T to obtain the temperature change value at time T, and then converts the temperature at time T The change value is compared with the temperature threshold. If the temperature change value at time T is not greater than the temperature threshold, the data processing module determines that no fault has occurred; if the temperature change value at time T is greater than the temperature threshold, the data processing module at time T will receive The current change value received is compared with the current threshold value. If the current change value at time T is greater than the current threshold value, the data processing module outputs an alarm signal to the main control chip. If the current change value at time T is not greater than the current threshold value, the data processing module It was judged that no failure occurred. The utility model adopts the change value of temperature and current for fault monitoring, compared with simply relying on the temperature or current change at a specific moment or within a specific time period for fault monitoring, the accuracy is higher, and the false alarm rate can be greatly reduced .

Preferably, the processor can disconnect the main circuit breaker or the load circuit breaker according to the comparison result of the data processing module, so as to provide protection for the circuit. The server can generate a fault repair dispatch work order according to the fault detection report and the location information of the smart meter, and send the fault repair dispatch work order to the target mobile terminal with the shortest path from the smart meter to prompt the staff to follow the fault repair order. A work order is sent to maintain the smart meter.

As some embodiments of the present invention, the processor further includes a storage device configured to collect and store historical data generated during the operation of the smart meter. The data stored in the storage device can be used for later failure analysis.

As some embodiments of the present utility model, the processor further includes a positioning module, and the positioning module can transmit the location and device number information of the faulty smart meter to an external server through the communication module.

As some embodiments of the present utility model, the processor can also communicate with a second electric energy meter that can communicate with each other, and the second electric energy meter is located adjacent to the smart electric meter and provides power through the same main power supply line , the second electric energy meter has the same function settings as the smart electric meter. When the smart meter fails and cannot operate normally, the second electric energy meter can judge whether the smart meter is faulty by obtaining the operating parameters of the smart meter, and when the judgment result indicates that the smart meter is faulty, generate a fault detection report, and send the fault detection report and the pre-stored location information of the smart meter to the server.

As some embodiments of the present utility model, the communication module includes a CCD high-definition camera, a haze removal processing device and an image processor, and the CCD high-definition camera can shoot and output an image of a smart meter that sends a fault alarm, and the desmog The haze processing device is located between the CCD high-definition camera and the image processor, the haze removal processing device can perform defogging processing on the image output by the CCD high-definition camera, and the communication module can process the haze removal images to an external server. The installation location of most electric energy meters is difficult to reach directly only by manual work. The image quality of severe weather such as fog and haze can be ensured by using defogging treatment. According to the image and combined with the temperature, current and other data of the smart meter, a preliminary judgment can be made on the fault condition of the smart meter, so as to simplify the on-site fault detection process and realize rapid maintenance of the fault.

In summary, it is not difficult to conclude that the utility model provides a smart meter with a remote automatic fault monitoring function, which can judge the fault situation by using the change of the real-time monitoring value of temperature and current, and the fault monitoring accuracy is high and the error rate is high. At the same time, it also simplifies the on-site detection process of the electric energy meter, and realizes convenient and fast maintenance when the electric energy meter fails.

The main control chip, communication module, data processing module and positioning module of the smart meter described in this application are all existing technologies. This application only creatively connects these modules to form new structures and functions to solve the problems of existing technologies. specific problems in .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (6)

1. a kind of intelligent electric meter with the automatic monitoring function of fault remote, it is characterised in that：The intelligent electric meter includes display Screen, processor and warning device, the processor are connect by main circuit breaker with power circuit, and the processor is disconnected by loading Road device is connect with loaded line, and the processor includes main control chip, current sampling device, temperature sensor, internal electric source, leads to Interrogate module and data processing module, the current sampling device is configured as acquisition current signal, the temperature sensor by with The temperature being set to inside acquisition intelligent electric meter, the internal electric source are configured as powering to processor, the data processing module The current signal received and temperature value are analyzed with preset threshold value in intelligent electric meter compared with, warning device is used for root Judge whether to need to send out alarm signal according to the comparison result of data processing module, the processor passes through communication module and outside Server connects;

The communication module includes CCD high-definition cameras, removes haze processing equipment and image processor, the CCD high-definition cameras Head can shoot the intelligent electric meter for sending out fault alarm and be exported image, described to go haze processing equipment positioned at described It is described to go haze processing equipment that be exported to CCD high-definition cameras between CCD high-definition cameras and described image processor Image carries out defogging processing, and the communication module can will be through defogging treated image transmitting to external server;

The intelligent electric meter can be in communication with each other with the second electric energy meter, and second electric energy meter has and the intelligent electric meter Identical function setting, second electric energy meter can be by obtaining the operating parameter of the intelligent electric meter to judge the intelligence Ammeter whether failure.

2. intelligent electric meter according to claim 1, it is characterised in that：Preset threshold value includes temperature in the intelligent electric meter Threshold value and current threshold.

3. intelligent electric meter according to claim 1, it is characterised in that：The processor further includes storage device, described to deposit Storage device is configured as that generated historical data in the intelligent electric meter operational process is collected and is stored.

4. intelligent electric meter according to claim 1, it is characterised in that：The processor further includes locating module, described fixed The position for the intelligent electric meter for generating failure, device numbering information can be transferred to external service by position module by communication module Device.

5. intelligent electric meter according to claim 1, it is characterised in that：The communication module can by current sampling device and The collected information of temperature sensor institute is transferred to external server.

6. intelligent electric meter according to claim 1, it is characterised in that：The processor can be according to data processing module Comparison result disconnects main circuit breaker or load break switch, the server can be according to fault detection addresses and the intelligent electric meter Location information generate trouble hunting job order.