CN204649816U - A kind of intelligent electric meter - Google Patents

A kind of intelligent electric meter Download PDF

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Publication number
CN204649816U
CN204649816U CN201520302638.0U CN201520302638U CN204649816U CN 204649816 U CN204649816 U CN 204649816U CN 201520302638 U CN201520302638 U CN 201520302638U CN 204649816 U CN204649816 U CN 204649816U
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CN
China
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module
information
energy
power
intelligent electric
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CN201520302638.0U
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Chinese (zh)
Inventor
王详傲
孙程程
叶玺臣
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滁州学院
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Priority to CN201520302638.0U priority Critical patent/CN204649816U/en
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Publication of CN204649816U publication Critical patent/CN204649816U/en

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Abstract

The utility model discloses a kind of intelligent electric meter, comprise: electric current and voltage sampling module, EMI filtration module, key-press module, system power failure detection/battery undervoltage detection module, electric energy metering module, RS485 communication interface, display module, storage unit, clock module, infrared communication interface, automatic alarm module, controller, adopt 32 High Performance SCM LPC1766 to be core controller, coordinate peripheral circuit to realize multi-functional, the high reliability of electric energy meter; Compared with prior art, the utility model has reasonable in design, and high performance controller and domestic computation chip realize intelligent electric meter, and cost performance is high, have wide market outlook.

Description

A kind of intelligent electric meter

Technical field

The utility model belongs to intelligent electric meter field, is specifically related to a kind of intelligent electric meter.

Background technology

The demand of society to the energy continues to increase, and non-renewable fossil performance source is progressively exhausted; While energy resource consumption, also produce a large amount of greenhouse gases, cause environment to worsen year by year.Therefore energy-saving and emission-reduction, green energy resource and sustainable development become the significant challenge that mankind's energy development faces.Intelligent grid proposes just under this severe situation.

Intelligent grid (Smart Grid) is based on physics electrical network, be based upon integrated, on high-speed bidirectional communication network, by modern advanced sensing measurement technology, the communication technology, infotech, computer technology and control technology and the integrated and novel power grid that formed of physics grid height, its intension realizes the informationization of electrical network, digitizing, robotization and interactive.Intelligent grid major advantage is: strong, self-healing, compatibility, interaction, safety, economy, clean, efficient, integrated, optimization etc.The application of intelligent grid effectively can manage the peak valley phase etc. of electric energy, distribution electric energy, coordination electric energy.

As energy resource consumption big country, the past China for various reasons, energy overall utilization rate is lower, and the transmission losses on electrical network accounts for 7% of total electricity.First application intelligent electric meter can reduce the wastage.Traditional motor meter is had an appointment the power attenuation of 2W, and intelligent electric meter eliminates the mechanical link of most of motor meter, greatly reduces power attenuation; Secondly, the Automatic meter reading system of intelligent electric meter to a certain degree can save human resources; Moreover, use intelligent electric meter effectively can manage electric energy to a certain extent and distribute electric energy, especially in shortage of electric power period.Generally speaking, intelligent electric meter and smart-interactive terminal are the intelligent electronic devices being applied to user side, there is a series of functions such as electric energy metrical, distant place control, two-way communication, remote meter reading, affair alarm, power information and parameter display, electric energy quality monitoring, the distributed power source monitoring of user side, Intelligent Optimal ammeter not only can better services in the people, serve enterprise; The essential step stepped out of the intelligent grid construction of China, makes China's intelligent grid have more influence power in the world especially.

Utility model content

The utility model is for above shortcoming, and a kind of intelligent electric meter of design for controller core with LPC1766 32 single-chip microcomputers, carries out computing by electric energy metering module to electric current and voltage sampled signal, show that power information is as active energy, reactive energy, the electricity charge etc.; All power informations store in a storage module, inquire about for user; Power information is sent to meter reading personnel by infrared communication interface, can increase work efficiency; The electricity price information of residential electricity information and electric company can be carried out two-way communication by RS485 communication interface, both improve the work efficiency of electric company, reduced cost, also can instruct user's rational utilization of electricity, reached energy-conservation object.

The technical solution adopted in the utility model is:

A kind of intelligent electric meter, is characterized in that, comprising:

Electric current and voltage sampling module, for gathering user's voltage, current data;

EMI filtration module, pollutes for harmonic inhabitation, accurate metering user electricity;

Key-press module, provides the related key of energy information inquiry, electricity price information inquiry;

System power failure detection/battery undervoltage detection module, for being storage unit reliable power supply in electric network power-fail situation;

Electric energy metering module, carries out computing by ATT7022B electric energy computation chip to electric current and voltage sampled signal, show that power information is as active energy, reactive energy etc.;

RS485 communication interface, for transmitting energy information, electricity price information between electric energy meter and host computer;

Display module, for showing electricity consumption numerical information, electricity price information, information-setting by user;

Storage unit, for the electricity price information storing user's energy information, host computer sends;

Clock module, for generation of real-time time, so that user is according to the accurate-metering of time-of-use tariffs principle reasonable arrangement electricity consumption time and the electricity charge;

Infrared communication interface, utilizes hand-held electric energy reading device closely to read power information fast for facilitating electric company staff;

Alarm module, makes intelligent electric meter have prominent auto-alarm function such as chance rugged surroundings, artificial destruction etc.;

Controller, according to real-time clock signal and electricity price information, receive and process the energy information that electric energy metering module sends, calculating demand charge and also store, in addition also for controlling display module, alarm module, and power information can be sent by RS485 communication interface and infrared communication interface.

As one of optimization: also comprise power module, for module for power supply each in intelligent electric meter.

As two of optimization: described controller adopts LPC1766 32 single-chip microcomputers.

As three of optimization: described display module adopts LCD12864 LCDs, and is electrically connected with controller.

As four of optimization: described storage unit adopts EEPROM power fail preventing data storer, and is electrically connected with controller.

As five of optimization: also comprise hand-held electric energy reading device, for closely reading power information fast.

Accompanying drawing explanation

Fig. 1 shows the structural representation of a kind of intelligent electric meter of the utility model;

In figure: 1, electric current and voltage sampling module, 2, EMI filtration module, 3, electric energy metering module, 4, controller, 5, key-press module, 6, system power failure detection/battery undervoltage detection module, 7, power module, 8, RS485 communication interface, 9, display module, 10, storage unit, 11, alarm module, 12, clock module, 13, infrared communication interface, 14, host computer, 15, hand-held electric energy reading device.

Embodiment

Below in conjunction with specific embodiment, the utility model is described in detail.

Following examples will contribute to those skilled in the art and understand the utility model further, but not limit the utility model in any form.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, some distortion and improvement can also be made.These all belong to protection domain of the present utility model.

embodiment 1:

As shown in Figure 1, a kind of intelligent electric meter, comprising:

Electric current and voltage sampling module 1, for gathering user's voltage, current data, convert the electricity consumption analog information in ammeter to electricity consumption numerical information, described electric current and voltage sampling module 1 is electrically connected with EMI filtration module 2.EMI filtration module is used for harmonic inhabitation and pollutes, accurate metering user electricity, the power information of filtering through EMI filtration module 2 sends to electric energy metering module 3, described electric energy metering module 3 is based on single-chip microcomputer control technology, carry out energy calculate with the voltage and current of domestic ATT7022B electric energy computation chip to sampling, calculate electric energy.Described electric energy metering module 3 class of accuracy: active energy 0.2 grade; Reactive energy 1.0 grades.The power information that described electric energy metering module 3 draws is by controller 4 data processing, by electric energy, unit price, total electric energy consumption price, internal data is sent to host computer 14 on the one hand by RS485 communication interface 8, host computer 14 is by real-time monitored picture, the running status of real-time display intelligent electric meter, host computer 14 also can also send a series of control command to controller 4 by RS485 communication interface 8 simultaneously, such as: intelligent electric meter is operated in abnomal condition, can give an order to controller 4 by host computer 14, ammeter is made again to return normal condition by means for correcting, on the other hand, shown by display module 9, described display module 9 adopts LCD12864 LCDs.Described controller 4 adopts 32 High Performance SCM LPC1766 to be core controller, coordinates peripheral circuit to realize multi-functional, the high reliability of electric energy meter.Use infrared communication interface 13 receiving and transmitting signal, automatically made a copy of by the electric energy that ammeter shows, the person of making a copy of closely can read power information fast by hand-held electric energy reading device 15, convenient, efficient, accurate, saves human resources in a large number; Alarm module 11 is electrically connected with controller 4, intelligent electric meter is made to have prominent auto-alarm function such as chance rugged surroundings, artificial destruction etc., such as: infrared detection occurs to fire, alerting signal is sent by controller 4, alarm module 11 is driven to report to the police, by RS485 communication interface 8, warning message is sent to host computer 14 simultaneously, inform that power department is taken measures.Simultaneously, for strengthening ammeter security further, have also been devised system power failure detection/battery undervoltage detection module 6 in electric network power-fail situation for storage unit reliable power supply, to ensure voltage and current reliable samples, there is self-checking function, can initiatively provide corresponding alerting signal to export to host computer 14, as TV (PT) decompression, TA (CT) break, power supply is not normal, self test failure etc.Storage unit 10 is electrically connected with controller 4, and described storage unit 10 adopts EEPROM power fail preventing data storer, and data store more convenient, ammeter dead electricity, but data are not lost, and after re-powering, data appoint right maintenance.Clock module 12 is electrically connected with controller 4, and high precision clock circuit produces real-time time, so that user is according to the accurate-metering of time-of-use tariffs principle reasonable arrangement electricity consumption time and the electricity charge; Key-press module 5 provides that energy information is inquired about, the related key of electricity price information inquiry, and good machine Interaction Interface Design makes that ammeter is inquired about, setting operation is convenient, succinct; Power module 7 by after 220v single-phase alternating current transformation, voltage stabilizing in ammeter each module for power supply, the optimal design of circuit integrity structure, makes every effort to make the power consumption of system self minimum.

Claims (6)

1. an intelligent electric meter, is characterized in that, comprising:
Electric current and voltage sampling module, for gathering user's voltage, current data;
EMI filtration module, pollutes for harmonic inhabitation, accurate metering user electricity;
Key-press module, provides the related key of energy information inquiry, electricity price information inquiry;
System power failure detection/battery undervoltage detection module, for being storage unit reliable power supply in electric network power-fail situation;
Electric energy metering module, carries out computing by ATT7022B electric energy computation chip to electric current and voltage sampled signal, show that power information is as active energy, reactive energy etc.;
RS485 communication interface, for transmitting energy information, electricity price information between electric energy meter and host computer;
Display module, for showing electricity consumption numerical information, electricity price information, information-setting by user;
Storage unit, for the electricity price information storing user's energy information, host computer sends;
Clock module, for generation of real-time time, so that user is according to the accurate-metering of time-of-use tariffs principle reasonable arrangement electricity consumption time and the electricity charge;
Infrared communication interface, utilizes hand-held electric energy reading device closely to read power information fast for facilitating electric company staff;
Alarm module, makes intelligent electric meter have prominent auto-alarm function such as chance rugged surroundings, artificial destruction etc.;
Controller, according to real-time clock signal and electricity price information, receive and process the energy information that electric energy metering module sends, calculating demand charge and also store, in addition also for controlling display module, alarm module, and power information can be sent by RS485 communication interface and infrared communication interface.
2. a kind of intelligent electric meter according to claim 1, is characterized in that: also comprise power module, for module for power supply each in intelligent electric meter.
3. a kind of intelligent electric meter according to claim 1, is characterized in that: described controller adopts LPC1766 32 single-chip microcomputers.
4. a kind of intelligent electric meter according to claim 1, is characterized in that: described display module adopts LCD12864 LCDs, and is electrically connected with controller.
5. a kind of intelligent electric meter according to claim 1, is characterized in that: described storage unit adopts EEPROM power fail preventing data storer, and is electrically connected with controller.
6. a kind of intelligent electric meter according to claim 1, is characterized in that: also comprise hand-held electric energy reading device, for closely reading power information fast.
CN201520302638.0U 2015-05-12 2015-05-12 A kind of intelligent electric meter CN204649816U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520302638.0U CN204649816U (en) 2015-05-12 2015-05-12 A kind of intelligent electric meter

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Application Number Priority Date Filing Date Title
CN201520302638.0U CN204649816U (en) 2015-05-12 2015-05-12 A kind of intelligent electric meter

Publications (1)

Publication Number Publication Date
CN204649816U true CN204649816U (en) 2015-09-16

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105788091A (en) * 2016-05-24 2016-07-20 南宁市茂百科技有限公司 Intelligent electric meter
CN106504502A (en) * 2016-12-06 2017-03-15 国网山东省电力公司鄄城县供电公司 The method of intelligent electric meter, intelligent electric meter management system and centralized automatic meter-reading
CN107664713A (en) * 2016-07-28 2018-02-06 北海和思科技有限公司 A kind of intelligent electric meter system
CN109035590A (en) * 2018-06-21 2018-12-18 广东工业大学 A kind of intelligent electric meter and electricity charge charging system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105788091A (en) * 2016-05-24 2016-07-20 南宁市茂百科技有限公司 Intelligent electric meter
CN107664713A (en) * 2016-07-28 2018-02-06 北海和思科技有限公司 A kind of intelligent electric meter system
CN106504502A (en) * 2016-12-06 2017-03-15 国网山东省电力公司鄄城县供电公司 The method of intelligent electric meter, intelligent electric meter management system and centralized automatic meter-reading
CN109035590A (en) * 2018-06-21 2018-12-18 广东工业大学 A kind of intelligent electric meter and electricity charge charging system

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150916

Termination date: 20160512