Intelligent electric energy meter with communication power supply fault detection function

Abstract

The utility model relates to the technical field of intelligent electric meters, and particularly discloses an intelligent electric meter with a communication power supply fault detection function, the intelligent electric meter comprises an electric meter body and a communication cabin embedded in the electric meter body, a metering chip is arranged in the electric meter body, the communication cabin comprises a shell, and the shell is provided with a power supply. A carrier module, a power supply module, a main controller, a fault detection element and an alarm assembly are arranged in the shell, the power supply module supplies power to the carrier module and the main controller, the metering chip is in signal connection with the main controller, the main controller is in signal connection with the carrier module, and the fault detection element is in signal connection with the alarm assembly. The alarm assembly is electrically connected with the power supply module, the fault detection element is in signal connection with the main controller, the alarm assembly emits light when the power supply module breaks down, the fault detection element is used for detecting whether the alarm assembly emits light or not, and the accuracy and timeliness of fault detection are improved through the mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent electric meter technical field especially, it is a kind of intelligent electric energy meter with communication power failure detection function. BACKGROUND

[0002] With the rapid development of power system, smart grid construction gradually becomes the important development direction of electric power industry, and intelligent electric energy meter as the important component of smart grid, not only bears the basic task of electric quantity measurement, also has remote data transmission, load management and multiple functions.Currently, although the intelligent electric energy meter on market has realized remote meter reading, automatic charging and other functions, there is still deficiency in equipment maintenance.Especially in communication power failure detection, the existing intelligent electric energy meter often lacks effective failure detection mechanism, so that once communication power fails, it cannot be found and handled in time, which affects normal use of user and service quality of electric power company.

[0003] The communication power failure detection method of existing intelligent electric energy meter is mostly dependent on external system or artificial inspection, and this way is not only time-consuming and labor-consuming, but also inefficient, and cannot realize real-time monitoring.In addition, when communication power fails, due to lack of effective alarm mechanism, electric power company is difficult to quickly locate fault point, thereby delaying fault elimination time and increasing operation and maintenance cost.Therefore, developing an intelligent electric energy meter capable of real-time monitoring communication power state and automatically issuing alarm when failure occurs has become a problem to be solved. SUMMARY

[0004] For the above prior art, the utility model provides a kind of intelligent electric energy meter with communication power failure detection function, mainly solves the technical problems existing in the above background art.

[0005] To achieve the above purpose, the technical scheme of the utility model embodiment is as follows:

[0006] A kind of intelligent electric energy meter with communication power failure detection function, the intelligent electric meter includes electric meter body and the communication bin embedded in the electric meter body inside, the electric meter body is equipped with metering chip, and the communication bin includes shell, carrier wave module, power module, main controller, fault detection element and alarm assembly are equipped in the shell inside, the power module is the carrier wave module, main controller power supply, the metering chip is connected with the main controller signal, the main controller is connected with the carrier wave module signal, the alarm assembly is electrically connected with the power module, the fault detection element is connected with the main controller signal, the alarm assembly emits light when the power module fails, and the fault detection element is used to detect whether the alarm assembly emits light.

[0007] Optionally, the alarm component comprises a rectifier diode D1, a crystal triode Q1, a light emitting diode LED1, and a capacitor C1, the emitter of the crystal triode Q1 is connected with the capacitor C1, the collector of the crystal triode Q1 is connected with the light emitting diode LED1, one end of the rectifier diode D1 is connected with the power module, and the other end is connected with the capacitor C1.

[0008] Optionally, the alarm component further comprises a variable resistor VR1, a resistor R1, and a resistor R2, wherein the power module is connected with the base of the crystal triode Q1 through the variable resistor VR1, the resistor R1 and the resistor R2 are connected between the variable resistor VR1 and the base of the crystal triode Q1 respectively, and one end of the resistor R2 is grounded.

[0009] Optionally, the power module comprises a 12V power supply circuit.

[0010] Optionally, the carrier wave module comprises a carrier wave coupling circuit, a carrier wave modem chip, and a carrier wave signal processing circuit, the main controller is connected with the carrier wave modem chip, the carrier wave modem chip is connected with the carrier wave signal processing circuit and the carrier wave coupling circuit in sequence, and the carrier wave coupling circuit is coupled with the power line.

[0011] Optionally, the carrier wave signal processing circuit comprises a carrier wave amplification circuit and a carrier wave filter circuit, the carrier wave modem chip is connected with the carrier wave amplification circuit and the carrier wave filter circuit respectively, and the carrier wave coupling circuit is also connected with the carrier wave amplification circuit and the carrier wave filter circuit respectively.

[0012] Optionally, the fault detection element comprises a photosensitive sensor.

[0013] The utility model discloses a kind of intelligent electric energy meter with communication power failure detection function, by integrating fault detection element and alarm component, the real-time monitoring of communication power state is realized.When power module fails, alarm component will immediately emit light, fault detection element detects this change, and quickly feedback fault information to main controller, and then send fault information to background server through carrier wave module, ensure that power company can know fault condition in first time and take corresponding measures.This not only improves the accuracy and timeliness of fault detection, reduces the data receiving interruption time caused by communication power failure, also greatly reduces the operation and maintenance cost of power system, improves the quality and efficiency of power service. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the module connection schematic view of the intelligent electric energy meter with communication power failure detection function in the embodiment of the application;

[0015] Figure 2 Circuit schematic of the alarm component in the embodiments of the present application;

[0016] Brief Description of the Drawings:

[0017] 1, metering chip; 2, carrier module; 3, power module; 4, main controller; 5, fault detection element; 6, alarm component; 7, background server. DETAILED DESCRIPTION

[0018] The technical scheme of the present application is further described in detail below in combination with the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0019] In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features known in the art are not described in order not to obscure the present application.

[0020] It should be understood that the present application can be implemented in different forms and should not be interpreted as being limited to the embodiments presented here. On the contrary, these embodiments are provided to make the disclosure complete and complete, and to fully convey the scope of the present application to those skilled in the art. And the purpose of the terms used here is only to describe the specific embodiments and not as a limitation of the present application. As used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprise" and / or "include", when used in the specification, determine the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components and / or groups. As used herein, the term "and / or" includes any and all combinations of the related listed items.

[0021] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Expressions such as "at least one of," when preceding a list of two or more items, mean that at least one of the listed items is present at an amount of one or more. Expressions such as "one or more of" when preceding a list of two or more items mean at least one of the listed items is present at an amount of one or more. Expressions such as "one of' when preceding a list of two or more items mean that one and only one of the listed items is present. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0022] For a thorough understanding of the present application, reference will be made to the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0023] Please refer to the accompanying drawings Figure 1 The application provides a kind of intelligent electric energy meter with communication power failure detection function, the intelligent electric meter includes electric meter body and the communication storehouse embedded in the electric meter body inside, the electric meter body is equipped with metering chip 1, the communication storehouse includes shell, carrier wave module 2, power module 3, main controller 4, fault detection element 5 and alarm component 6 are equipped in the shell inside, the power module 3 is the carrier wave module 2, main controller 4 power supply, the metering chip 1 is connected with the main controller 4 signal, the main controller 4 is connected with the carrier wave module 2 signal, the alarm component 6 is electrically connected with the power module 3, the fault detection element 5 is connected with the main controller 4 signal, the alarm component 6 emits light when the power module 3 fails, and the fault detection element 5 is used to detect whether the alarm component 6 emits light.

[0024] Specifically, the application discloses an intelligent electric energy meter with communication power failure detection function, which realizes real-time collection of user current and voltage through metering chip 1 and calculation of forward and reverse, peak and valley or four-quadrant electric energy, and the metering chip 1 and the way of real-time collection and calculation of user current and voltage through the metering chip 1 are all prior art in the field of electric energy meters, which will not be described here. After obtaining current, voltage and other electric quantity data through the metering chip 1, the electric quantity data is sent to the main controller 4, the main controller 4 sends the data collected and calculated by the metering chip 1 to the background server 7 in the form of carrier wave signal through the carrier wave module 2, and the power supply of the carrier wave module 2 and the main controller 4 is supported by the power module 3. The power module 3 that supplies power to the carrier wave module 2 is detected for failure through the alarm component 6, and the alarm component 6 emits light when the power module 3 fails. Since the fault detection element 5 is arranged in the shell, the fault detection element 5 can determine that the power module 3 fails after detecting the light.

[0025] participate Figure 2 In an optional embodiment, the alarm component 6 comprises a rectifier diode D1, a transistor Q1, a light-emitting diode LED1, and a capacitor C1. The emitter of the transistor Q1 is connected to the capacitor C1, the collector of the transistor Q1 is connected to the light-emitting diode LED1, one end of the rectifier diode D1 is connected to the power module 3, and the other end is connected to the capacitor C1. The transistor Q1 is a PNP type transistor.

[0026] Specifically, when the power module 3 is not faulty, the rectifier diode D1 is forward-biased, the power module 3 charges the capacitor C1, and the capacitor C1 stores sufficient charge. The base (B) of the transistor Q1 is at a high potential, and the light-emitting diode LED1 is in an open-circuit state. When the power module 3 is faulty, the base (B) of the transistor Q1 is pulled to a low potential and saturated conduction. The current provided by the capacitor C1 flows through the light-emitting diode LED1, the light-emitting diode LED1 is turned on and emits light, and the rectifier diode D1 isolates the capacitor C1 from other circuits when the capacitor C1 is powered, preventing the leakage of the charge of the capacitor.

[0027] Further, the alarm component 6 further comprises a variable resistor VR1, a resistor R1, and a resistor R2. The power module 3 is connected to the base of the transistor Q1 through the variable resistor VR1, the resistor R1 and the resistor R2 are connected between the variable resistor VR1 and the base of the transistor Q1, and one end of the resistor R2 is grounded. The variable resistor VR1 and the resistor R1 are used to adjust the resistance value, so that the power module 3 remains off when it is not faulty. The resistor R2 is used to pull the base (B) of the transistor Q1 to a low potential and saturated conduction.

[0028] Further, the power module 3 comprises a 12V power supply circuit, and the alarm component 6 is connected to the 12V power supply circuit.

[0029] In an optional embodiment, the carrier module 2 comprises a carrier coupling circuit, a carrier modem chip, and a carrier signal processing circuit. The main controller 4 is connected to the carrier modem chip, the carrier modem chip is connected to the carrier signal processing circuit and the carrier coupling circuit in sequence, and the carrier coupling circuit is coupled to the power line.

[0030] Specifically, the main function of the carrier coupling circuit is to couple the signal to or from the existing power line, because the power line is originally designed for power transmission, and the design does not take into account the need for data transmission. Therefore, it is necessary to effectively superimpose the high-frequency data signal on the alternating current on the power line through the carrier coupling circuit without interfering with the normal power supply. Similarly, when receiving data, the carrier coupling circuit is responsible for extracting the superimposed data signal from the power line;

[0031] The carrier modem chip is one of the core components of the carrier module 2, responsible for converting the data sent by the host controller 4 into an analog signal that can be transmitted on the power line (i.e. the modulation process), and restoring the received analog signal to the original digital information (i.e. the demodulation process);

[0032] The workflow is as follows: when the carrier module 2 transmits a carrier, the host controller 4 passes the data to be sent to the carrier modem chip, which converts the data to be sent into an analog signal suitable for power line transmission. After optimization by the carrier signal processing circuit, the signal is sent to the carrier coupling circuit, which couples the processed signal to the power line.

[0033] When receiving a carrier, the carrier coupling circuit extracts the analog signal from the power line. The extracted analog signal is processed by the carrier signal processing circuit, such as filtering and amplification, to improve signal quality. The processed signal is sent to the carrier modem chip, which converts the analog signal back to the original data. Finally, the recovered data is read and processed by the host controller 4.

[0034] Further, the carrier signal processing circuit includes a carrier amplification circuit and a carrier filter circuit, and the carrier modem chip is connected to the carrier amplification circuit and the carrier filter circuit, respectively. The carrier coupling circuit is also connected to the carrier amplification circuit and the carrier filter circuit, respectively.

[0035] Specifically, when transmitting data, the carrier amplification circuit amplifies the signal from the carrier modem chip and then transmits it through the carrier coupling circuit. When receiving data, the carrier filter circuit filters the analog signal received by the carrier coupling circuit to remove noise and other interference on the power line and retain the useful data signal.

[0036] Further, the fault detection element 5 includes a photosensitive sensor. Since the housing is a closed housing, when the photosensitive sensor detects light, it means that the light-emitting diode LED 1 is emitting light, which indicates that the power module 3 has failed.

[0037] It should be noted that the carrier amplification circuit, the carrier filter circuit, the carrier coupling circuit, the carrier modem chip, the 12V power supply circuit, and the photosensitive sensor are all prior art in the field, and the electronic components and circuit diagrams for forming the corresponding circuits can be selected and arranged by those skilled in the art according to actual practical needs, which will not be specifically explained in the embodiment.

[0038] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A smart electric energy meter with communication power failure detection function, the smart electric energy meter comprising an electric meter body and a communication compartment embedded in the interior of the electric meter body, a metering chip is arranged in the electric meter body, characterized in that, The communication warehouse comprises a shell, a carrier wave module, a power module, a main controller, a fault detection element and an alarm assembly are arranged inside the shell, the power module supplies power for the carrier wave module and the main controller, the metering chip is connected with the main controller in signal, the main controller is connected with the carrier wave module in signal, the alarm assembly is connected with the power module in electricity, the fault detection element is connected with the main controller in signal, the alarm assembly emits light when the power module fails, and the fault detection element is used for detecting whether the alarm assembly emits light.

2. The smart electric energy meter with communication power failure detection function according to claim 1, characterized in that, The alarm assembly comprises a rectifier diode D1, a crystal triode Q1, a light emitting diode LED1 and a capacitor C1, the emitter of the crystal triode Q1 is connected with the capacitor C1, the collector of the crystal triode Q1 is connected with the light emitting diode LED1, one end of the rectifier diode D1 is connected with the power module, and the other end is connected with the capacitor C1.

3. The smart electric energy meter with communication power failure detection function according to claim 2, characterized in that, The alarm assembly further comprises a variable resistor VR1, a resistor R1 and a resistor R2, wherein the power module is connected with the base of the crystal triode Q1 through the variable resistor VR1, the resistor R1 and the resistor R2 are connected between the variable resistor VR1 and the base of the crystal triode Q1 respectively, and one end of the resistor R2 is grounded.

4. The smart electric energy meter with communication power failure detection function according to claim 3, characterized in that, The power module comprises a 12V power supply circuit.

5. The smart electric energy meter with communication power failure detection function according to claim 4, characterized in that, The carrier wave module comprises a carrier wave coupling circuit, a carrier wave modulation and demodulation chip and a carrier wave signal processing circuit, the main controller is connected with the carrier wave modulation and demodulation chip, the carrier wave modulation and demodulation chip is connected with the carrier wave signal processing circuit and the carrier wave coupling circuit in sequence, and the carrier wave coupling circuit is coupled with the power line.

6. The smart electric energy meter having communication power failure detection function according to claim 5, wherein, The carrier wave signal processing circuit comprises a carrier wave amplification circuit and a carrier wave filter circuit, the carrier wave modulation and demodulation chip is connected with the carrier wave amplification circuit and the carrier wave filter circuit respectively, and the carrier wave coupling circuit is also connected with the carrier wave amplification circuit and the carrier wave filter circuit respectively.

7. The smart electric energy meter having communication power failure detection function according to claim 1, characterized in that, The fault detection element comprises a photosensitive sensor.

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