CN201548600U - Electronic type electric energy meter - Google Patents
Electronic type electric energy meter Download PDFInfo
- Publication number
- CN201548600U CN201548600U CN2009202597168U CN200920259716U CN201548600U CN 201548600 U CN201548600 U CN 201548600U CN 2009202597168 U CN2009202597168 U CN 2009202597168U CN 200920259716 U CN200920259716 U CN 200920259716U CN 201548600 U CN201548600 U CN 201548600U
- Authority
- CN
- China
- Prior art keywords
- keyboard
- electric energy
- energy meter
- power supply
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
Abstract
The utility model discloses an electronic type electric energy meter comprising an MCU control unit as well as a user input keyboard unit, wherein, the keyboard unit is connected with the MCU control unit through parallel interfaces and used for inputting codes containing electricity purchase information provided by the power supply department, and the MCU control unit monitors the keyboard through interrupt mode and achieves keyboard type-in by controlling the input and output of a keyboard data line. By allowing users to input the codes provided by the power supply department into the keyboard and turning the codes into a transmission medium, the electric energy meter, though without any open socket, achieves greater resistance against attack and interference. Moreover, by conforming to the policy of no access to power supply without advance payment, the electric energy meter helps the power supply department control power supply.
Description
Technical field
The utility model relates to a kind of electronic electric energy meter.
Background technology
Now the IC-card prepayment meter of Shi Yonging has wide-open card inserting mouth, and card inserting mouth is carried on the back artificial attack easily, destroys the electric energy meter data, finally makes the charge system paralysis.Simultaneously, because cost restriction, the IC-card easy crack, even carried out black market bargain by massive duplication, bring massive losses to power supply department.And IC-card is lost easily, is difficult to realize long-range supplementing with money.These shortcomings in use progressively embody.
The utility model content
The purpose of this utility model provides a kind of anti-aggressiveness, strong interference immunity, is convenient to the electronic electric energy meter of electric energy management.
The electronic electric energy meter that the utility model provides, comprise the MCU control module, also comprise user's input keyboard unit, this keyboard unit is connected with the parallel port of MCU control module, be used to import the coding that the user who is provided by power supply department purchases electrical information is provided, the MCU control module is monitored keyboard by interrupt mode, by the keyboard typing is carried out in the control of keyboard data line input and output.
The utility model is owing to connected user's input keyboard unit on the MCU control module, the user supplements with money to be needed to buy electric weight to power supply department earlier, obtaining supplementing with money the required electricity of purchasing accordingly encodes, import this coding by user's input keyboard unit then, coding adopts the STS cryptographic algorithm to carry out dynamic encryption production.This dynamic encryption coding comprises the information of user and electric energy meter.Electric energy meter is decrypted the coding of input, and that obtains supplements the electric weight or the amount of money with money.Relay closes a floodgate after the electric energy meter successful recharging, and corresponding led state pilot lamp extinguishes.The MCU unit is saved in storage unit with the data of supplementing with money.The utility model can also utilize the existing RS485 communication unit of electronic electric energy meter, realizes long-rangely supplementing with money, the data setting, keeps in repair, reads power information in the electric energy meter etc.Very convenient and, the multi-functional prepayment meter of keyboard-type passes through network's mode, realize data setting, function maintenance, supplement with money by the inner RS485 communication unit of electric energy meter again, also can read power information in the electric energy meter etc., very easy to use, the utility model does not have open socket on the one hand, its anti-aggressiveness, strong interference immunity significantly strengthen, coding is to be provided by power supply department on the other hand, what adopt is the advanced charge electric control mode of electricity consumption after paying dues earlier, is convenient to the management of power supply department to electric energy.
Description of drawings
Fig. 1 is the structured flowchart of a kind of embodiment of the utility model.
Embodiment
As can be seen from Figure 1, present embodiment still has the MCU control module, this MCU control module connects the electric energy metrical unit, data storage cell, display unit, relay control unit, power module, the RS485 communication unit, acousto-optic warning unit, far and near infrared communication unit, anti-electricity-theft unit, clock unit, also has user's input keyboard unit, this keyboard unit is connected with the employing parallel data detection mode of MCU control module, the MCU control module is monitored keyboard by interrupt mode, by the keyboard typing is carried out in the control of keyboard data line input and output.The simple and convenient dependable performance of this circuit, strong interference immunity, cost are low.The user supplements with money to be needed to buy electric weight to power supply department earlier, obtains supplementing with money required respective coding, imports this coding by user's input keyboard unit then, and coding adopts the STS cryptographic algorithm to carry out dynamic encryption production.This dynamic encryption coding comprises the information of user and electric energy meter.Electric energy meter is decrypted the coding of input, and that obtains supplements the electric weight or the amount of money with money.Relay closes a floodgate after the electric energy meter successful recharging, and corresponding led state pilot lamp extinguishes.The MCU unit is saved in storage unit with the data of supplementing with money.Metering units converts electric energy to pulse signal by the sampled voltage current signal and send the MCU control module to handle, and MCU send display unit to show information by handling.The information of the communications status of the electric energy metrical cell data (electric weight) that display unit is handled MCU, the state of relay control unit, RS485 communication unit and far away, near infrared communication unit, the keyboard unit input of user profile input, the electric energy meter parameter that data storage cell is preserved, the stealing state of anti-electricity-theft unit, the calendar clock data of clock unit show by the LCD liquid crystal display.Acousto-optic warning unit, relay control unit reflect user's the electricity condition of use in real time by the data processing of MCU unit to the electric weight of metering units, data storage cell, anti-electricity-theft unit, and the prompting user.The pilot lamp of described acousto-optic warning unit adopts the emitting led of 3 kinds of different colours.Hummer is at user's input coding, sound a buzzer when the zero passage electricity consumption occurring.The current residual electric weight is smaller or equal to dump energy thresholding 1, and the LED alarm lamp is bright; The current residual electric weight is smaller or equal to dump energy thresholding 2, and the LED alarm lamp is bright, and by the tripping operation of relay control unit pilot relay once, the user closes a floodgate by any button relay, and the user can continue electricity consumption.Purpose is in order to remind user institute electric energy meter dump energy deficiency, to need to supplement with money closely soon; The current residual electric weight is zero, and the LED alarm lamp is bright, and the tripping operation of relay tripping relay, informs that user's dump energy has used up need supplement with money; Have the repayment function, relay does not disconnect for a certain reason, allows the user to carry out fault and buys electricity consumption on dredit, deduction expense was supplemented with money from next time.User's input keyboard unit is made up of with two function keys (*, #) 10 0 ~ 9 numerical key.Function realizes convenient, and is rationally distributed.
The course of work of the present utility model is: the connection box of electric energy meter terminal is linked to each other with user's supply line.The user buys electric weight to power supply department, obtains supplementing required corresponding encoded with money, behind input coding on the keyboard, confirm by " # " key, if input is correct, on the LCD screen demonstration supplement with money electric weight and "
" successful icon.If mistake would show the IC-XXX error code and "
" the mistake icon.If successful recharging, if relay is to disconnect then closing relay, the user can begin electricity consumption.
In the user power utilization process, when dump energy was lower than warning electric weight thresholding 1, the green LED pilot lamp was bright; When dump energy was lower than warning electric weight thresholding 2, the red LED pilot lamp was bright, and relay disconnects once, pressed any key relay and closed a floodgate; When dump energy during less than " 0 ", LED light yellowing, relay disconnects.In the user power utilization process, pulse pilot lamp flicker, when power consumption was big, the pilot lamp flicker frequency was fast, power consumption hour, the pilot lamp flicker frequency is slow.The pulse pilot lamp uses red light emitting diodes.
During power supply department maintenance electric energy meter, can use the photoelectric communication head to be connected, electric energy meter is overhauled with kilowatt meter recorder.Perhaps carry out long-range maintenance by RS485.
The RS485 communication unit can be realized long-rangely supplementing with money, data setting, maintenance aspect, the multi-functional prepayment meter of keyboard-type passes through network's mode, realize data setting, function maintenance, supplement with money by the inner RS485 communication unit of electric energy meter again, also can read power information in the electric energy meter etc.Local non-keyboard is supplemented with money, data setting, maintenance aspect, and the multi-functional prepayment meter of keyboard-type is realized the data setting by far away, near infrared communication unit, and the function maintenance is supplemented with money, also can read power information in the electric energy meter etc.
Claims (1)
1. electronic electric energy meter, comprise the MCU control module, it is characterized in that also comprising user's input keyboard unit, this keyboard unit is connected with the parallel port of MCU control module, be used to import the coding that the user who is provided by power supply department purchases electrical information is provided, the MCU control module is monitored keyboard by interrupt mode, by the keyboard typing is carried out in the control of keyboard data line input and output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202597168U CN201548600U (en) | 2009-12-16 | 2009-12-16 | Electronic type electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202597168U CN201548600U (en) | 2009-12-16 | 2009-12-16 | Electronic type electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201548600U true CN201548600U (en) | 2010-08-11 |
Family
ID=42603776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202597168U Expired - Lifetime CN201548600U (en) | 2009-12-16 | 2009-12-16 | Electronic type electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201548600U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526263A (en) * | 2016-08-10 | 2017-03-22 | 浙江恒业电子有限公司 | Indoor meter body of single-phase STS split-type electric energy meter |
| US10902391B2 (en) | 2012-06-28 | 2021-01-26 | Contour Technology (Pty) Ltd. | Automated transaction system |
-
2009
- 2009-12-16 CN CN2009202597168U patent/CN201548600U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10902391B2 (en) | 2012-06-28 | 2021-01-26 | Contour Technology (Pty) Ltd. | Automated transaction system |
| CN106526263A (en) * | 2016-08-10 | 2017-03-22 | 浙江恒业电子有限公司 | Indoor meter body of single-phase STS split-type electric energy meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201569701U (en) | Single phase remote charge intelligent ammeter | |
| CN201060513Y (en) | Three-phase smart card type prepaid multifunctional electric energy meter | |
| CN201910648U (en) | Electric vehicle charging spot | |
| CN103021086B (en) | Equipment for realizing metering, display and management of multiple indoor energies | |
| CN204808478U (en) | Realize intelligent water gauge controlling means of self -service service | |
| CN101866515A (en) | Thermal control device for prepaying with noncontact-type smart IC card | |
| CN202227805U (en) | Novel multifunctional electronic coded door lock | |
| CN201255903Y (en) | Wireless remote transmission intelligent meter | |
| CN109088990A (en) | A kind of ammeter control method and system based on mobile terminal | |
| CN201548600U (en) | Electronic type electric energy meter | |
| CN202210322U (en) | Device capable of realizing indoor multiple energy metering, display and management | |
| CN201007829Y (en) | Prepaid electric meter electricity selling management system | |
| CN1790438A (en) | Method and system for meter transmitting information | |
| CN106768140B (en) | Internet of Things water meter | |
| CN201084214Y (en) | A clavier split-type multifunctional prepayment electric energy meter | |
| CN202101715U (en) | Intelligent self-control flow integrating meter | |
| CN203415042U (en) | Intelligent IC (integrated circuit) card prepayment water meter | |
| CN201060226Y (en) | Single-phase smart card type pre-payment multi-rate meter | |
| CN205725045U (en) | A kind of multifunctional intellectual charging pile | |
| CN200972682Y (en) | Keyboard multifunction prepayment electric energy meter | |
| CN203132625U (en) | Near field communication (NFC) water meter | |
| CN202486698U (en) | Multi-function password input unit | |
| CN202013609U (en) | Prepaid electric meter based on GPRS (General Packet Radio Service) transmission | |
| CN201111188Y (en) | Metering locker door opening and closing recorder | |
| CN201820293U (en) | Heating control device for prepaying with non-contact smart IC card |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |
|
| CX01 | Expiry of patent term |