CN2490585Y

CN2490585Y - Intelligence pulse electric meter

Info

Publication number: CN2490585Y
Application number: CN 00253318
Authority: CN
Inventors: 刘志强; 周维来; 王学才
Original assignee: Harbin Jiuzhou Electric Co Ltd
Current assignee: Harbin Jiuzhou Electric Co Ltd
Priority date: 2000-12-05
Filing date: 2000-12-05
Publication date: 2002-05-08
Anticipated expiration: 2010-12-05

Abstract

The utility model discloses an intelligence pulse electric meter, which can charge based on the time interval and the multi-rate and have an uploading function of the RS-485 data; in addition, the utility model can also correct time, modify the time interval and reset data. When the RX-485 wiring is damaged or the electric meter powers down or is damaged, an upper computer can automatically alarm. The utility model comprises all component parts of a traditional electronic meter and is characterized by an additional intelligence pulse plate, an additional transmitting unit capable of transmitting a string of modulated narrow duty ratio pulses, an additional receiving unit capable of irradiating the intelligence pulse plate by an anti-creep hole on a dial plate and an additional set of circuits further.

Description

The intelligence pulse electricity meter

The utility model belongs to a kind of watt-hour meter, has a kind ofly specifically installed intelligent pulse plate additional, can carry out the intelligent kilowatt-hour meter of multiple rate accounting of segmentation and RS-485 data upload function.

Traditional mechanical type watt-hour meter is the mechanical type counting, can't realize remote data transmission, the multiple rate accounting of data upload function and segmentation

The utility model purpose is to disclose a kind of intelligent pulse electricity meter, can carry out multiple rate accounting of segmentation and RS-485 data upload function.In the time of also can making the school simultaneously, revise the period, put work such as number again.When RS-485 wiring damage or watt-hour meter power down or damage, upper function is reported to the police automatically.

Its composition of the utility model comprises traditional mechanical type watt-hour meter each several part, it is characterized in that installing additional intelligent pulse plate and be subjected to unit and set of circuits with the reception that can send the transmitter unit of a string modulated narrow duty cycle pulse and shine on the intelligent pulse plate by the anti-shunt running hole on the dial plate, circuit core is a singlechip chip 1, the pulse that 8 pin of single-chip microcomputer are real-time through ovennodulation, connecing triode N1 input end amplifies through electric current, promote luminotron O1 and send infrared pulse, one round-meshed rotating disk is arranged between infraluminescence pipe O1 and infrared receiving tube O1, by the rotating disk circular hole, photoelectric receiving tube O1 receives photosignal, through single-chip microcomputer 9 pin input counting.Electrification reset, house dog 2, be nonvolatile memory, power on or watchdog timer then resets at single-chip microcomputer.EEPROM in electrification reset, the house dog 2 has deposited three tariff datas, RS-485 level transferring chip 3, finish the conversion of single-chip microcomputer and host computer 485 signals of communication, watt-hour meter turns over a hole, single-chip microcomputer goes out a signal by 18 human hair combing wastes, amplify through triode N2 electric current, luminotron L1 is glittering, extinguishes through time-delay.Battery B1 is a backup battery, and VCC is battery B1 charging through diode D8 and resistance R 1, and during the external power dead electricity, battery B1 is the entire circuit power supply by diode D7.Capacitor C 1, C2 are filter capacitor.

Fig. 1 is the electrical schematic diagram of the utility model embodiment;

Single-chip microcomputer 1 is the core of circuit among Fig. 1.The pulse that 8 pin of single-chip microcomputer are real-time through ovennodulation, amplify through triode N1 electric current, promote luminotron O1 and send infrared pulse, be round-meshed rotating disk between infraluminescence pipe O1 and infrared receiving tube O1, forward the position of circular hole to when rotating disk, photoelectric receiving tube O1 just can receive photosignal, and this signal is through single-chip microcomputer 9 pin input counting.2 is electrification reset, house dog, nonvolatile memory, can single-chip microcomputer power on or watchdog timer to resetting constantly.EEPROM in 2 is used for depositing three tariff datas, and 3 is the RS-485 level transferring chip, has finished the conversion of single-chip microcomputer and host computer 485 signals of communication.Whenever watt-hour meter turns over a hole, then single-chip microcomputer goes out a signal by 18 human hair combing wastes, makes luminotron L1 glittering after triode N2 electric current amplifies, and extinguishes after the time-delay.Battery B1 is a backup battery, and this intelligent pulse electricity meter energy operate as normal is 48 hours during in order to the external circuit dead electricity.When the external power operate as normal, VCC is a battery charge through diode D8 and resistance R 1, and when the external power dead electricity, battery B1 is the entire circuit power supply by diode D7.Capacitor C 1, C2 are filter capacitor, are used for filter out power to disturb.

The utility model is to have installed intelligent pulse plate additional on the basis of traditional mechanical type watt-hour meter, can carry out multiple rate accounting of segmentation and RS-485 data upload function.When power meter disk rotates, transmitter unit on the intelligence pulse plate sends a string modulated narrow duty cycle pulse, and when dial plate forwarded ad-hoc location to, light pulse was subjected to the unit by the reception that the anti-shunt running hole on the dial plate shines on the intelligent pulse plate, after the pulse shaping postpones, send single-chip microcomputer to count.Whenever after a while, single-chip microcomputer is sent into the count value that deposits among the RAM in the nonvolatile memory.Clock in the single-chip microcomputer charges at times as need, can deposit count value in corresponding peak, paddy, flat unit by at that time period by software.Band rechargeable battery in this intelligent pulse electricity meter, when the working power of table because of cause specific (as damaging) power down, watt-hour meter can rely on the internal cell operate as normal 48 hours.When needs were done centralized automatic meter-reading, host computer can carry out data communication by mode and each the intelligent pulse electricity meter of RS-485, reads the data of peak, paddy, flat day part, in the time of also can making the school simultaneously, revise the period, put work such as number again.When RS-485 wiring damage or watt-hour meter power down or damage, upper function is reported to the police automatically.

The utility model low-power consumption.Use pulse length modulation principle and reduce Overall Power Consumption, battery can be prolonged more than 8 times service time when power down is used.Has high reliability.Use battery and nonvolatile memory and carry out data protection, and dynamically with the software relatively a plurality of backups in the storer in real time, so the reliability of data is very high in the table.

Claims

1. intelligent pulse electricity meter, its composition comprises traditional mechanical type watt-hour meter each several part, it is characterized in that installing additional intelligent pulse plate and be subjected to unit and set of circuits with the reception that can send the transmitter unit of a string modulated narrow duty cycle pulse and shine on the intelligent pulse plate by the anti-shunt running hole on the dial plate, circuit core is singlechip chip (1), the pulse that 8 pin of single-chip microcomputer are real-time through ovennodulation, connecing triode N1 input end amplifies through electric current, promote luminotron O1 and send infrared pulse, one round-meshed rotating disk is arranged between infraluminescence pipe O1 and infrared receiving tube O1, by the rotating disk circular hole, photoelectric receiving tube O1 receives photosignal, through single-chip microcomputer 9 pin input counting, electrification reset, house dog (2), be nonvolatile memory, power on or watchdog timer then resets at single-chip microcomputer, electrification reset, EEPROM in the house dog (2) has deposited three tariff datas, RS-485 level transferring chip (3), finish the conversion of single-chip microcomputer and host computer 485 signals of communication, watt-hour meter turns over a hole, single-chip microcomputer goes out a signal by 18 human hair combing wastes, amplify through triode N2 electric current, luminotron L1 is glittering, extinguish through time-delay, battery B1 is a backup battery, VCC is battery B1 charging through diode D8 and resistance R 1, during the external power dead electricity, battery B1 is the entire circuit power supply by diode D7, capacitor C 1, C2 is a filter capacitor.