CN102854382A - Numerical electricity stealing prevention electric energy detection system - Google Patents

Numerical electricity stealing prevention electric energy detection system Download PDF

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Publication number
CN102854382A
CN102854382A CN2011101772918A CN201110177291A CN102854382A CN 102854382 A CN102854382 A CN 102854382A CN 2011101772918 A CN2011101772918 A CN 2011101772918A CN 201110177291 A CN201110177291 A CN 201110177291A CN 102854382 A CN102854382 A CN 102854382A
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electric energy
chip
module
data
chip microcomputer
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侯治国
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Suzhou Institute of Trade and Commerce
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Suzhou Institute of Trade and Commerce
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Abstract

本发明公开了一种数字防窃电电能检测系统,以单片机为存储电路核心,使用串口的方式传递数据;电能检测电路采用能测量有功/无功功率、有功/无功能量的计量芯片,并提供两路独立的有功功率、电压有效值、过零中断;通信电路采用蓝牙模块实现对用户电能表进行无线抄表,蓝牙串口通讯采用嵌入式HHW-SPP模块。本发明的系统采用单片机为主控制器,结合高精度电能计量芯片以及存储电路、显示电路、数据传输电路共同实现数字防窃电电能检测,该系统可以精确采集用户累计消耗电能,并将累计消耗电能值进行显示和掉电不丢失存储,方便用户查询用电情况,该系统还利用蓝牙模块实现对用户电能表数据无线抄读,极大地提高了抄表效率。The invention discloses a digital anti-stealing electric energy detection system, which uses a single-chip microcomputer as the core of a storage circuit and uses a serial port to transmit data; the electric energy detection circuit adopts a metering chip capable of measuring active/reactive power and active/reactive energy, and Provide two independent active power, voltage effective value, and zero-crossing interrupts; the communication circuit uses a Bluetooth module to realize wireless meter reading for the user's electric energy meter, and the Bluetooth serial port communication uses an embedded HHW-SPP module. The system of the present invention uses a single-chip microcomputer as the main controller, combined with high-precision electric energy metering chips, storage circuits, display circuits, and data transmission circuits to jointly realize digital anti-stealing electric energy detection. The energy value is displayed and stored without losing power, which is convenient for users to inquire about power consumption. The system also uses the Bluetooth module to realize wireless reading of the user's energy meter data, which greatly improves the efficiency of meter reading.

Description

The anti-electricity-theft electric energy detection system of a kind of numeral
Technical field
The present invention relates to the electric energy field, be specifically related to the anti-electricity-theft electric energy detection system of a kind of numeral.
Background technology
China's alternating current electric energy detection major part still adopts induction type machinery electric energy meter to detect at present, in this case, have to adopt artificial copy reading ammeter, not only labour intensity is large, efficient is low for this, but also can exist check meter not in place, estimate and copy, leak the problem such as copy, mistake is copied, miscount and the cycle of checking meter is long, the control of stealing is not more known where to begin.
Summary of the invention
For overcoming deficiency of the prior art, the object of the present invention is to provide the anti-electricity-theft electric energy detection system of a kind of numeral.
In order to solve the problems of the technologies described above, realize above-mentioned purpose, the present invention has adopted following technical scheme:
The anti-electricity-theft electric energy detection system of a kind of numeral take single-chip microcomputer as the memory circuit core, uses the mode of serial ports to transmit data, with data address signal and pulse signal and single-chip microcomputer transmission data;
The computation chip that can measure active power, reactive power, meritorious energy, quadergy that power detection circuit adopts, and provide simultaneously two-way independently active power, voltage effective value, zero passage interrupt, can be according to the two-way flexibly anti-electricity-theft scheme that relatively can realize of active power independently;
Telecommunication circuit adopts bluetooth module to realize user's electric energy meter is carried out radio meter register, read the electric energy that user's accumulative total consumes, embedded HHW-SPP module is adopted in the bluetooth serial ports communication, one main one from the pairing use, primary module by portion of the handle sends instruction first, then send data to primary module from user's electric energy meter module, realize the wireless read functions of data.
Preferably, described single-chip microcomputer adopts the AT24C02 single-chip microcomputer, the A0 of AT24C02 single-chip microcomputer, and A1, A2 holds ground connection.
Preferably, described computation chip adopts the RN8209 chip, and the RN8209 chip is provided with serial line interface SPI and the serial line interface RSIO that is connected on the same data lines.
Preferably, described RN8209 chip adopts the SPI mode to communicate by letter, include for the capacitor C 1 of stablizing crystal oscillator frequency, capacitor C 2, play triode Q1, the triode Q2 of on-off action, comprise Transistor-Transistor Logic level, aanalogvoltage input pin series connection 800K resistance connects the 220V alternating current, is provided with the 800K resistance that is beneficial to heat radiation and the serial module structure of 8 100K resistance.
The present invention has the following advantages: it is master controller that system of the present invention adopts single-chip microcomputer, combined high precision electric energy computation chip and memory circuit, display circuit, data transmission circuit are realized digital anti-electricity-theft electric energy detection jointly, this system can accurately gather user's accumulative total and consume electric energy, and will totally consume energy value and show with power down and do not lose storage, make things convenient for the user to inquire about the electricity consumption situation, this system also utilizes bluetooth module to realize the copy reading of user's electric energy meter data wireless, has greatly improved meter reading efficiency.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, below is described in detail as follows with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples.
Embodiment
The anti-electricity-theft electric energy detection system of a kind of numeral specifically comprises following circuit design:
Power circuit adopts the tandem type integrated regulated power supply, and major part is to adopt linear voltage stabilization chip 7805 to realize voltage stabilizing, and when there was fluctuation in input voltage, output voltage kept constant device.Its cardinal principle is that single-phase alternating current is passed through power transformer, and rectification circuit, filtering circuit, mu balanced circuit change into galvanic current and press.
Take single chip computer AT 24C02 as the memory circuit core, use the mode of serial ports to transmit data, transmit data with data address signal (SDA) and pulse signal (SCK) with single-chip microcomputer; Since in the design as long as deposit the address with one, so A0, A1, A2 holds ground connection.
Power detection circuit adopts the RN8209 computation chip, RN8209 can measure active power, reactive power, meritorious energy, quadergy, and two-way independently active power, voltage effective value, zero passage interruption etc. are provided simultaneously, according to the two-way flexibly anti-electricity-theft scheme that relatively can realize of active power independently.RN8209 provides dual serial interface SPI and RSIO (data lines), conveniently and between the outside MCU communicates.Adopt the SPI mode to communicate by letter among the design, therefore 12 pins connect height.Capacitor C 1, C2 effect are to stablize crystal oscillator frequency.Triode Q1, Q2 play the effect of switch, make the level of input P1.4, P1.5 only have 5V and 0V, namely obtain Transistor-Transistor Logic level.Aanalogvoltage input pin series connection 800K resistance connects the 220V alternating current, among the design 800K resistance is divided into 8 100K resistance series connection, is conducive to like this heat radiation.The analog current channel B utilizes current transformer to gather at live wire, and analog current passage A utilizes minimum resistance string linked method to gather at zero line.
Telecommunication circuit adopts bluetooth module to realize user's electric energy meter is carried out radio meter register, reads the electric energy that user's accumulative total consumes.Embedded HHW-SPP module is adopted in the bluetooth serial ports communication, and one main one from the pairing use.Send instruction by primary module (portion of the handle) first, then send data to primary module from module (user's electric energy meter), realize the wireless read functions of data.
Above-described embodiment just is to allow the one of ordinary skilled in the art can understand content of the present invention and according to this enforcement for technical conceive of the present invention and characteristics being described, its objective is, can not limit protection scope of the present invention with this.Variation or the modification of every equivalence that the essence of content has been done according to the present invention all should be encompassed in protection of the present invention.

Claims (4)

1.   一种数字防窃电电能检测系统,其特征在于,以单片机为存储电路核心,使用串口的方式传递数据,用数据地址信号和脉冲信号与单片机传递数据; 1. A digital anti-stealing electric energy detection system, characterized in that a single-chip microcomputer is used as the core of the storage circuit, data is transmitted through a serial port, and data is transmitted with the single-chip microcomputer by using data address signals and pulse signals; 电能检测电路采用的能测量有功功率、无功功率、有功能量、无功能量的计量芯片,并同时提供两路独立的有功功率、电压有效值、过零中断,能根据两路独立的有功功率的比较可以实现灵活的防窃电方案; The energy detection circuit adopts a metering chip that can measure active power, reactive power, active energy, and reactive energy, and provides two independent active power, voltage effective value, and zero-crossing interrupts at the same time, and can Power comparison can realize flexible anti-stealing scheme; 通信电路采用蓝牙模块实现对用户电能表进行无线抄表,读取用户累计消耗的电能,蓝牙串口通讯采用嵌入式HHW-SPP模块,一主一从配对使用,先由手持部分的主模块发送指令,然后从用户电能表模块发送数据给主模块,实现数据的无线读取功能。 The communication circuit uses the Bluetooth module to realize wireless meter reading of the user's electric energy meter, and reads the accumulated electric energy consumed by the user. The Bluetooth serial port communication uses an embedded HHW-SPP module, which is paired with one master and one slave. First, the master module of the handheld part sends commands. , and then send data from the user energy meter module to the main module to realize the wireless reading function of data. 2.    根据权利要求书1所述的数字防窃电电能检测系统,其特征在于,所述单片机采用AT24C02单片机,AT24C02单片机的A0,A1,A2端接地。 2. According to the digital anti-theft electric energy detection system described in claim 1, it is characterized in that the single-chip microcomputer adopts an AT24C02 single-chip microcomputer, and the A0, A1, and A2 terminals of the AT24C02 single-chip microcomputer are grounded. 3.    根据权利要求书1所述的数字防窃电电能检测系统,其特征在于,所述计量芯片采用RN8209芯片,RN8209芯片设有连接在同一根数据线上的串行接口SPI和串行接口RSIO。 3. According to the digital anti-stealing electric energy detection system described in claim 1, it is characterized in that, the metering chip adopts RN8209 chip, and RN8209 chip is provided with serial interface SPI and serial interface connected on the same data line RSIO. 4.    根据权利要求书1所述的数字防窃电电能检测系统,其特征在于,所述RN8209芯片采用SPI方式通信,包含有用于稳定晶振频率的电容C1、电容C2,起开关作用的三极管Q1、三极管Q2,包含TTL电平,模拟电压输入管脚串联800K电阻接220V交流电,设有利于散热的800K电阻与8个100K电阻的串联模块。 4. The digital anti-theft power detection system according to claim 1, wherein the RN8209 chip communicates in SPI mode, and includes capacitors C1 and C2 for stabilizing the frequency of the crystal oscillator, and a transistor Q1 that acts as a switch 1. Transistor Q2, including TTL level, the analog voltage input pin is connected in series with 800K resistors to 220V AC, and is provided with a series module of 800K resistors and eight 100K resistors that is good for heat dissipation.
CN2011101772918A 2011-06-28 2011-06-28 Numerical electricity stealing prevention electric energy detection system Pending CN102854382A (en)

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CN109557362A (en) * 2018-11-24 2019-04-02 国网青海省电力公司西宁供电公司 A kind of anti-electricity-theft monitoring method of distribution line and system
CN112700629A (en) * 2020-12-08 2021-04-23 烟台科大正信电气有限公司 Intelligent electric energy meter communication system
CN112834859A (en) * 2021-02-20 2021-05-25 国网江苏省电力有限公司营销服务中心 A device and method for simulating parameter variation of components of a metering device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109557362A (en) * 2018-11-24 2019-04-02 国网青海省电力公司西宁供电公司 A kind of anti-electricity-theft monitoring method of distribution line and system
CN112700629A (en) * 2020-12-08 2021-04-23 烟台科大正信电气有限公司 Intelligent electric energy meter communication system
CN112834859A (en) * 2021-02-20 2021-05-25 国网江苏省电力有限公司营销服务中心 A device and method for simulating parameter variation of components of a metering device

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