CN204360375U - Domestic intelligent electricity meter information inquiry terminal - Google Patents
Domestic intelligent electricity meter information inquiry terminal Download PDFInfo
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- CN204360375U CN204360375U CN201420868489.XU CN201420868489U CN204360375U CN 204360375 U CN204360375 U CN 204360375U CN 201420868489 U CN201420868489 U CN 201420868489U CN 204360375 U CN204360375 U CN 204360375U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The utility model discloses a kind of domestic intelligent electricity meter information inquiry terminal, relate to intelligent electric meter technical field, comprise mainboard, described mainboard is provided with: MCU, and described MCU is the primary processor of described inquiry terminal; 485 interface circuits, for arranging address and the statistical conversion of described intelligent electric meter; EEPROM, for storing the address of described intelligent electric meter and described data; Key circuit and liquid crystal display circuit, for man-machine interaction; Also comprise: power carrier interface, described power carrier interface is electrically connected with described MCU, transmits for the data realized between described intelligent electric meter and described MCU; Power module, described power module is electrically connected with described mainboard and described power carrier interface respectively, powers to described mainboard and described power carrier interface for electric main being converted to direct supply.Ordinarily resident's safety, convenient, electricity consumption situation of comprehensively checking own home at home can be made.
Description
Technical field
The utility model relates to intelligent electric meter technical field, particularly a kind of domestic intelligent electricity meter information inquiry terminal.
Background technology
Intelligent electric meter is the intelligent terminal of intelligent grid, and it also has the intelligentized function such as power information storage, two-way multiple rate function of measuring, user side controlling functions, bidirectional data communication function and anti-stealing electricity function except having the function of metering power consumption.Growing along with intelligent grid, countries in the world also increase day by day for the demand of intelligent electric meter.
State Grid Corporation of China has issued the company standard of single-phase intelligent ammeter first in 2009, the specification functional requirement of intelligent electric meter, unify communication technology agreement, greatly develop the electric-power centralized meter reading system based on power carrier, made inquiry that the electric system of various places can be quick and complete and grasp the various power informations of each user (comprising family).But understand very few as the power information of average family to oneself of user, current residential electricity consumption table generally unification is arranged in the ammeter box of Stall, by the query key of ammeter can only understand total electricity consumption, last month the partial information such as total electricity consumption (electric system regulation in various places is different, query contents is different), and ammeter chest is locked at ordinary times, not easy to operate, also easily cause danger.
Utility model content
For above defect, technical problem to be solved in the utility model is to provide a kind of domestic intelligent electricity meter information inquiry terminal, and this domestic intelligent electricity meter information inquiry terminal can make ordinarily resident's safety, power information that is convenient, comprehensively understanding own home at home.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of domestic intelligent electricity meter information inquiry terminal, comprise mainboard, described mainboard is provided with: MCU, and described MCU is the primary processor of described inquiry terminal; 485 interface circuits, described 485 interface circuits are electrically connected with described MCU, for arranging address and the statistical conversion of described intelligent electric meter; EEPROM, described EEPROM is electrically connected with described MCU, for storing the address of described intelligent electric meter and described data; Key circuit and liquid crystal display circuit, described key circuit and described liquid crystal display circuit are electrically connected with described MCU, respectively for man-machine interaction; Also comprise: power carrier interface, described power carrier interface is electrically connected with described MCU, transmits for the data realized between described intelligent electric meter and described MCU; Power module, described power module is electrically connected with described mainboard and described power carrier interface respectively, powers to described mainboard and described power carrier interface for electric main being converted to direct supply.
Wherein, be electrically connected with photoelectric coupled circuit between described power carrier interface and described MCU, described photoelectric coupled circuit is positioned on described mainboard.
Wherein, described inquiry terminal is also provided with power indicating circuit, and described power indicating circuit is electrically connected with described power module.
Wherein, the signal input part of described power carrier interface is electrically connected the power lead of described inquiry terminal, and described power lead is connected with attaching plug, and the supply socket in described attaching plug and user family is suitable; The signal output part of described power carrier interface is electrically connected with described photoelectric coupled circuit.
Wherein, described photoelectric coupled circuit comprises four light coupling relay in parallel, the signal input part of each described light coupling relay is electrically connected with four signal output parts of described power carrier interface respectively, and the signal output part of each described light coupling relay is electrically connected with four signal input tube pin of described MCU respectively.
Wherein, described power carrier interface comprises a carrier module, and the signal input part of described carrier module is electrically connected with described power lead, and the signal output part of described carrier module is electrically connected with described photoelectric coupled circuit.
Wherein, the model of described MCU is R5F212BCSDFP.
Wherein, the model of four described light coupling relay is LTV-816S-D3.
Wherein, the model of the communication module in the model of described carrier module and described intelligent electric meter matches.
After have employed technique scheme, the beneficial effects of the utility model are:
Because the utility model domestic intelligent electricity meter information inquiry terminal comprises mainboard, mainboard is provided with 485 interface circuits, EEPROM, liquid crystal display circuit and the key circuit that are electrically connected with MCU respectively, also comprise the power carrier interface for realizing data transmission between intelligent electric meter and MCU, and the power module for powering to mainboard and power carrier interface.The utility model domestic intelligent electricity meter information inquiry terminal only needs to be set to this inquiry terminal in by the mailing address of associated intelligent electric meter by 485 interfaces to power operation department before use, be stored into (EEPROM is nonvolatile memory, and power down is obliterated data not) in EEPROM.This inquiry terminal realizes man-to-man corresponding by set address and intelligent electric meter.In use, be inserted into by the power lead of this inquiry terminal in family in any one supply socket, this inquiry terminal just can communicate with the electric energy meter be associated immediately, and the related data of reading power meters.Display data on inquiry terminal can be carried out page turning by button and be checked, the packet inquired about is containing the data of all external disclosures of electric energy meter, comprise: of that month total electricity consumption, in the past each moon total electricity consumption, current voltage, current flow, current power, total frequency of power cut, this month ceiling voltage, this month minimum voltage, remaining sum, the information such as last power purchase time and dump energy, and above-mentioned each data all derive by 485 interfaces, are stored into computer or print.From the above, the utility model domestic intelligent electricity meter information inquiry terminal can make ordinarily resident's safety, convenient, electricity consumption situation of comprehensively checking own home at home, enjoy the right to know same with power operation department, avoid causing the troubles such as power-off because Sorry, your ticket has not enough value.
Owing to being electrically connected with photoelectric coupled circuit between power carrier interface and MCU; photoelectric coupled circuit serves good buffer action to the signal transmitted between power carrier interface and MCU; other circuit on MCU and mainboard is played a very good protection; improve job stability and the reliability of inquiry terminal, extend the serviceable life of inquiry terminal.
In sum, the utility model domestic intelligent electricity meter information inquiry terminal solves ordinarily resident in prior art cannot understand the technical matters of power information in own home, the utility model domestic intelligent electricity meter information inquiry terminal is simple to operate, safe reliability is high, ordinarily resident's safety, convenient, electricity consumption situation of comprehensively checking own home at home can be made, enjoy the right to know same with power operation department, avoid causing the troubles such as power-off because Sorry, your ticket has not enough value.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model domestic intelligent electricity meter information inquiry terminal;
Fig. 2 is the power carrier interface of the utility model domestic intelligent electricity meter information inquiry terminal and the electrical connection schematic diagram of photoelectric coupled circuit;
Fig. 3 is the pin distribution plan of the MCU of the utility model domestic intelligent electricity meter information inquiry terminal.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.
As shown in Figure 1, a kind of domestic intelligent electricity meter information inquiry terminal, comprises mainboard, and mainboard is provided with MCU (Micro Control Unit, single-chip microcomputer), and MCU is the primary processor of inquiry terminal.MCU is electrically connected with 485 interface circuits, EEPROM (Electrically Erasable Programmable Read-OnlyMemory, band EEPROM (Electrically Erasable Programmable Read Only Memo)), liquid crystal display circuit and key circuit respectively.485 interface circuits drive 485 interfaces, and by the address of the intelligent electric meter of the communications such as this 485 interface can be arranged, and the statistical conversion of the intelligent electric meter that inquiry terminal can be inquired is in computer or print.EEPROM is the storage chip that after a kind of power down, data are not lost, and the model of the EEPROM selected in the present embodiment is the 512*64 memory of 24C256, for the address that stores intelligent electric meter and the data inquired.Key circuit, for driving each inquiry button, realizes the functions such as inquiry, up and down page turning; Liquid crystal display circuit, for driving segment encode LCDs, shows every Query Information, and key circuit and liquid crystal display circuit can realize man-machine interaction.
As shown in Figure 1, domestic intelligent electricity meter information inquiry terminal also comprises power carrier interface, the output terminal of power carrier interface is electrically connected with photoelectric coupled circuit, photoelectric coupled circuit electrical connection MCU, and photoelectric coupled circuit is positioned on mainboard, power lead A and B of the input end electrical connection inquiry terminal of power carrier interface, for realizing the data transmission between intelligent electric meter and MCU.Also comprise power module AC/DC, the input end of power module AC/DC is also electrically connected power lead A and B of inquiry terminal, 5V direct supply 5V-A and 5V-B being converted to two-way isolation after electric main rectification step-down is exported by output terminal by power module AC/DC, direct supply 5V-A is used for main board power supply, and direct supply 5V-B is used for powering to power carrier interface.Power lead A and B is connected with attaching plug, and the supply socket in attaching plug and user family is suitable.Power module AC/DC is also electrically connected with power indicating circuit, power indicating circuit drive have power light, power light be used to indicate inquiry terminal whether switch on power and power module AC/DC whether working properly.
As shown in Figure 3, the R5F212BCSDFP single-chip microcomputer that in present embodiment, MCU selects Renesas Electronics Corporation to produce, the MCU of this model is the preferred MCU of present embodiment, in practical application, the MCU of other Multiple Type is all applicable to the utility model, those skilled in the art do not need to pay creative work according to the function introduction of this instructions just can select other substitute products, therefore will not enumerate at this about the MCU of other model.Because the pin of R5F212BCSDFP is numerous; its peripheral circuit is also more complicated; in order to shorten the length of this instructions; therefore illustrate only the pin distribution of R5F212BCSDFP in fig. 3; and simply marked the pin relevant with the utility model, other is had nothing to do with the utility model and the conventional power supply that uses and defencive function peripheral circuit and associate pin and do not indicating at this.As shown in Figure 3,31st, 41 and 40 pins of R5F212BCSDFP are electrically connected 485 interface circuits, 53rd, the 54 and 55 pin electrical connection EEPROM of R5F212BCSDFP, 17th, the 18 and 51 pin electrical connection liquid crystal display circuits of R5F212BCSDFP, the 33rd, 35, the 37 and 39 pin electrical connection photoelectric coupled circuit of R5F212BCSDFP.
As Fig. 2 and Fig. 3 jointly shown in, power carrier interface comprises a carrier module P1, and the signal input port 5 and 6 of carrier module P1 is electric connection of power supply line A and B respectively, and the signal output port 1,2,3 and 4 of carrier module P1 is electrically connected photoelectric coupled circuit respectively.Photoelectric coupled circuit comprises four light coupling relay U7 in parallel, U8, U9 and U10.Four light coupling relay U7, U8, U9 are connected with+5V power electric with R69 respectively by four pull-up resistors R43, R44, R68 with the port one of U10, and the resistance of four pull-up resistors R43, R44, R68 and R69 is 2K Ω; Port 4 all electric connection of power supply VCC of four light coupling relay U7, U8, U9 and U10.The port 3 of light coupling relay U7 is electrically connected the signal output port 4 of carrier module P1 simultaneously also by a pull down resistor R45 ground connection; The port 3 of light coupling relay U8 is electrically connected the signal output port 3 of carrier module P1 simultaneously also by a pull down resistor R46 ground connection; The port 3 of light coupling relay U9 is electrically connected the signal output port 1 of carrier module P1 simultaneously also by a pull down resistor R71 ground connection; The port 3 of light coupling relay U10 is electrically connected the signal output port 2 of carrier module P1 simultaneously also by a pull down resistor R72 ground connection; The resistance of pull down resistor R45, R46, R71 and R72 is 20K Ω.The port 2 of light coupling relay U7 is electrically connected the 35th pin of MCU; The port 2 of light coupling relay U8 is electrically connected the 33rd pin of MCU; The port 2 of light coupling relay U9 is electrically connected the 37th pin of MCU; The port 2 of light coupling relay U10 is electrically connected the 39th pin of MCU.The model of four light coupling relay is LTV-816S-D3; photoelectric coupled circuit serves good buffer action to the signal transmitted between power carrier interface and MCU; other circuit on MCU and mainboard is played a very good protection; improve job stability and the reliability of inquiry terminal, extend the serviceable life of inquiry terminal.
Present embodiment is only the description carried out for PLCS1643-GW13 (V3.2) that Qingdao Neusoft produces for carrier module P1, in practical application, the model of carrier module P1 should match with the model of the communication module in intelligent electric meter, those skilled in the art do not need to pay performing creative labour according to foregoing description just can make alternative, therefore is not described in detail in this about the embodiment of the carrier module of other model.
The using method of the utility model domestic intelligent electricity meter information inquiry terminal is as follows:
Before use, power operation department need be arrived the mailing address of associated intelligent electric meter is set in this inquiry terminal by 485 interfaces, be stored in EEPROM.Domestic intelligent electricity meter information inquiry terminal realizes man-to-man corresponding by set address and intelligent electric meter, namely in this inquiry terminal, destination address only can inquire about the data of the intelligent electric meter of this address after arranging.
During use, be inserted into by the power lead of information inquiry terminal in family in any one supply socket, this inquiry terminal will communicate with the intelligent electric meter associated immediately, and reads the related data of intelligent electric meter.
Display data on inquiry terminal can be inquired about by button, and the packet inquired about, containing the data of all external disclosures of electric energy meter, comprises following data etc.:
1, electric energy data, as:
Of that month total electricity consumption: xxxxxx.xx kWh
Upper January total electricity consumption: xxxxxx.xx kWh
Upper February total electricity consumption: xxxxxx.xx kWh
……
2, power consumption parameter inquiry, as:
Current voltage: XXX.X V
Current flow: XXX.XXX A
Current power: XX.XXXX kW
……
3, logout inquiry, as:
Total frequency of power cut: XXXXXX time
This month ceiling voltage: xx x.x V
This month minimum voltage: xx x.x V
……
4, other parameter query, as:
Remaining sum: XXXX.XX unit
The last power purchase time: XX.XX.XX date
Dump energy is inquired about: XXXX.XX kW
……。
From above-mentioned using method, the utility model domestic intelligent electricity meter information inquiry terminal is simple to operate, safe reliability is high, ordinarily resident's safety, convenient, electricity consumption situation of comprehensively checking own home at home can be made, enjoy the right to know same with power operation department, avoid causing the troubles such as power-off because Sorry, your ticket has not enough value.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion made, all drop within protection domain of the present utility model.
Claims (9)
1. domestic intelligent electricity meter information inquiry terminal, is characterized in that, comprises mainboard, and described mainboard is provided with:
MCU, described MCU are the primary processor of described inquiry terminal;
485 interface circuits, described 485 interface circuits are electrically connected with described MCU, for arranging address and the statistical conversion of described intelligent electric meter;
EEPROM, described EEPROM is electrically connected with described MCU, for storing the address of described intelligent electric meter and described data;
Key circuit and liquid crystal display circuit, described key circuit and described liquid crystal display circuit are electrically connected with described MCU, respectively for man-machine interaction;
Also comprise:
Power carrier interface, described power carrier interface is electrically connected with described MCU, transmits for the data realized between described intelligent electric meter and described MCU;
Power module, described power module is electrically connected with described mainboard and described power carrier interface respectively, powers to described mainboard and described power carrier interface for electric main being converted to direct supply.
2. domestic intelligent electricity meter information inquiry terminal according to claim 1, is characterized in that, be electrically connected with photoelectric coupled circuit between described power carrier interface and described MCU, described photoelectric coupled circuit is positioned on described mainboard.
3. domestic intelligent electricity meter information inquiry terminal according to claim 2, is characterized in that, described inquiry terminal is also provided with power indicating circuit, and described power indicating circuit is electrically connected with described power module.
4. the domestic intelligent electricity meter information inquiry terminal according to Claims 2 or 3, it is characterized in that, the signal input part of described power carrier interface is electrically connected the power lead of described inquiry terminal, described power lead is connected with attaching plug, and the supply socket in described attaching plug and user family is suitable; The signal output part of described power carrier interface is electrically connected with described photoelectric coupled circuit.
5. domestic intelligent electricity meter information inquiry terminal according to claim 4, it is characterized in that, described photoelectric coupled circuit comprises four light coupling relay in parallel, the signal input part of each described light coupling relay is electrically connected with four signal output parts of described power carrier interface respectively, and the signal output part of each described light coupling relay is electrically connected with four signal input tube pin of described MCU respectively.
6. domestic intelligent electricity meter information inquiry terminal according to claim 5, it is characterized in that, described power carrier interface comprises a carrier module, and the signal input part of described carrier module is electrically connected with described power lead, and the signal output part of described carrier module is electrically connected with described photoelectric coupled circuit.
7. domestic intelligent electricity meter information inquiry terminal according to claim 6, is characterized in that, the model of described MCU is R5F212BCSDFP.
8. domestic intelligent electricity meter information inquiry terminal according to claim 6, is characterized in that, the model of four described light coupling relay is LTV-816S-D3.
9. domestic intelligent electricity meter information inquiry terminal according to claim 6, is characterized in that, the model of the communication module in the model of described carrier module and described intelligent electric meter matches.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868489.XU CN204360375U (en) | 2014-12-31 | 2014-12-31 | Domestic intelligent electricity meter information inquiry terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420868489.XU CN204360375U (en) | 2014-12-31 | 2014-12-31 | Domestic intelligent electricity meter information inquiry terminal |
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| CN204360375U true CN204360375U (en) | 2015-05-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504129A (en) * | 2014-12-31 | 2015-04-08 | 潍坊五洲浩特电气有限公司 | Information inquiring terminal of household intelligent electric meter |
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- 2014-12-31 CN CN201420868489.XU patent/CN204360375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504129A (en) * | 2014-12-31 | 2015-04-08 | 潍坊五洲浩特电气有限公司 | Information inquiring terminal of household intelligent electric meter |
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