Single-phase static watt-hour meter with wireless meter reading module

A technology of wireless meter reading and electric energy meter, which is applied in the direction of measuring electric variables, special billing meters, electric power measurement through current/voltage, etc. It can solve the problems of not meeting the needs of customers and achieve the effect of full functions

Inactive Publication Date: 2011-05-18
SHANGHAI JINLING INTELLIGENT ELECTRIC METER +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Due to the above-mentioned defects in the existing ordinary single-phase

Method used

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  • Single-phase static watt-hour meter with wireless meter reading module
  • Single-phase static watt-hour meter with wireless meter reading module

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings of the embodiments.

[0033] figure 1 It is a functional block diagram of the single-phase static electric energy meter of the present invention, as figure 1 As shown, the single-phase static electric energy meter of the present invention includes the following components.

[0034] The power signal sampling module 20 includes a current sampling module 21 and a voltage sampling module 22. The current sampling module 21 adopts a current transformer isolation structure, and adopts the same current transformer summation method for two live wire currents to sample the current; voltage sampling The module 22 uses a voltage dividing resistor to perform voltage sampling on the connection voltage.

[0035] The metering module 11 is connected with the electric energy signal sampling module 20 to obtain the sampling signals of current and v...

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Abstract

The invention discloses a single-phase static watt-hour meter with a wireless meter reading module to solve the problem that the conventional watt-hour meter cannot meet multi-level using requirements of users due to incomplete functions, and cannot be read remotely. The watt-hour meter comprises an electric energy signal acquisition module, a metering module and a microcontroller which are connected in turn, and also comprises a power supply, a meter calibration pulse output module, a data storage module, a display module, a clock and battery module, a time sharing module and a wireless communication module which are respectively connected with the microcontroller, wherein the wireless communication module is linked with a remote meter reading device through a wireless communication channel to remotely read the meter. The watt-hour meter has the following functions: the automatically networked wireless communication can realize remote meter reading; and the watt-hour meter has the functions of calculating time sharing multiple rates, metering demanded quantity, recording events and load curve, measuring load data such as voltage, current, active power, apparent power, frequency and the like, detecting undervoltage, overvoltage, loss of current and overcurrent, and the like, has complete functions and can meet the multi-level using requirements of users.

Description

technical field [0001] The invention relates to an electric power meter, in particular to a single-phase static electric energy meter with a wireless meter reading module. Background technique [0002] Existing ordinary single-phase electric energy meters generally only have the functions of measuring electric energy and time-sharing multi-rate, and can display normally at low temperatures. Generally, LED digital tubes are used, but the display content is small and the power consumption is large. [0003] Most of the ordinary single-phase electric energy meters currently used are mechanical electric energy meters. The mechanical electric energy meter is measured by mechanical rotation, so the installation of the electric energy meter has strict requirements. The angle from the vertical is different, or even obviously inclined, which will make the energy measurement unbalanced, resulting in inaccurate measurement, that is, the result of slow walking, stopping or even non-walk...

Claims

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Application Information

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IPC IPC(8): G01R21/06G01R22/06G01R11/57G08C17/02
Inventor 徐继宏汪一华张华林华谘张振华
Owner SHANGHAI JINLING INTELLIGENT ELECTRIC METER
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