CN2689234Y

CN2689234Y - Low-voltage kinetic intelligent control measuring controller of meter box

Info

Publication number: CN2689234Y
Application number: CN 200420031143
Authority: CN
Inventors: 吴沛峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-12
Filing date: 2004-04-12
Publication date: 2005-03-30
Anticipated expiration: 2014-04-12

Abstract

The utility model relates to a low-voltage kinetic intelligent control measuring controller of meter box, belonging to the anti-theft electric monitoring device of the medium and low voltage measuring kilowatt-hour meter box used by power supply administration sectors. The utility model consists of a shell, a door sensor, a microprocessor, an electronic key, a warning message distance-transmission interface circuit and a circuit breaking continuing monitoring circuit. Because the utility model adopts the high reliability electronic key, the commonality of the electronic key is realized. A reconfigurable management function under fortuitous events can add a capacitance of 1F in a power supply circuit. The entire circuit of the utility model is designed in low consumption. The utility model can continuously monitor within 24 hours after power off. A capacitance of 1 mu F is connected in the door sensor circuit in parallel. The controller begins to work and detect whether history abnormal information exists or not and to process after power on again at the moment of capacity charge. The SCM circuit of the warning message distance-transmission interface circuit is provided with two PS2703 optical coupling devices which can realize a function of information distance-transmission after warning message appears.

Description

Low-voltage-powered type Based Intelligent Control metering ammeter box controller

Technical field:

The utility model belong to that management of power supply and power utilization department uses in, the anti-electric theft monitoring device of low-temperature measurement ammeter box.

Background technology:

At present, in common, in the use of low-temperature measurement ammeter box, exist the safety defect that the lawless person utilizes common electrical energy metering tank, usurp lead sealing and open batch meter, carry out the technology stealing and happen occasionally, it is more serious that electrical phenomenas are stolen in indivedual areas.Though the domestic appearance that similar anti-theft controller product has been arranged, there are the following problems for it: supporting electron key safety factor is not high; Can not continue monitoring behind the power cut-off; Re-power the back controller and can not handle historical information automatically; Do not possess warning message teletransmission interface.

Summary of the invention:

The purpose of this utility model has provided a kind of low-voltage-powered type Based Intelligent Control metering ammeter box controller, it not only can satisfy the needs of normal anti-electric theft monitoring, but also possesses highly reliable supporting electron key, power cut-off can continue monitoring in 24 hours, re-power the back controller and can handle historical information automatically, also possess advantages such as warning message teletransmission interface, electrical energy metering tank trouble free service for electric industry department, more reliable monitoring and guarantee are provided, prevent the generation of illegal electricity consumption situation.

The utility model is achieved in that a kind of low-voltage-powered type Based Intelligent Control metering ammeter box controller, and it is to continue supervisory circuit by housing, door sensor, microprocessor, electron key, warning message teletransmission interface circuit, outage to constitute.Power supply current supply circuit VCC place and earth terminal that outage continues supervisory circuit are connected to an electric capacity, and the RA1 of the single-chip microcomputer of warning message teletransmission interface circuit, RA2 pin are received on output photoelectrical coupler PS2703 OP5, the OP6 by two resistance respectively.Electron key adopts DS1990A as private key, and DS1992 is as common key.After door sensor detects enabling signal or after re-powering, start the power supply of microprocessor, microprocessor is started working, microprocessor is taken over power supply, keeps signal to power supply, and the state of monitor door sensor, by timing microprocessor 15 seconds, if correctly read in the password of electron key at this moment, think legal operation, otherwise drive trip circuit and warning circuit.Realize the information remote transmitting function.Because all control circuit is according to low power dissipation design, therefore after the outage, controller still can continue monitoring in 24 hours.At the electric capacity of the input end A of door condition sensor one 1 μ F in parallel with earth terminal, when re-powering, can controller be started working in the moment of electric capacity charging, whether detection exists historical abnormal information and carries out respective handling.

Description of drawings:

Fig. 1 is the controller architecture block diagram;

Fig. 2 is information button communicating circuit figure;

Fig. 3 is the electron key management flow chart;

Fig. 4 is the door sensor circuit;

Fig. 5 is that supervisory circuit figure is continued in the outage back;

Fig. 6 is warning message teletransmission interface circuit figure.

Embodiment:

Below in conjunction with drawings and Examples the utility model is further specified.

Among Fig. 1: after door sensor detects enabling signal or after re-powering, start the power supply of microprocessor, microprocessor is started working; Microprocessor is taken over power supply, keeps signal to power supply, and the state of monitor door sensor; By timing microprocessor 15 seconds, if correctly read in the password of electron key at this moment, think legal operation, otherwise drive trip circuit and warning circuit.

Among Fig. 2: the interface connector of information button inserts by connector IBUTTONM CON2.5-2; two diode D6, D7 and leakage are opened phase inverter U4 74HCO5 and are played protection and isolate; R16 is a 1/4W insurance resistance, links to each other with RB5, the RB6 pin of PIC16F84A single-chip microcomputer at last.Supporting electron key, the iButton information button of employing MaximDallas DS19990A of company and DS1992 series: possess 48 ID sign indicating numbers, 8 family's sign indicating numbers, 8 CRC check sign indicating numbers, the high reliability of ID number unique assurance electron key in the worldwide; The metal shell of stainless steel can guarantee that again electron key possesses characteristics such as wear-resisting, high life; The control code verification system of software aspect has guaranteed that electron key under unexpected situation, can reconfigure, and has introduced the management method of different user authority.

Among Fig. 3: in normal proof procedure, after the success of IBUTTON communication test, read the information of IBUTTON, then according to different control words, next step operation that judgement need be carried out has realized the versatility of electron key, the reconfigurable property management function under the fortuitous event by software.

Among Fig. 4: sensor is inserted by 1,3 pin of connector J2, R1, R5, C2, C4 element are formed anti-tampering and debouncing circuit, R2, C1 integrator are formed second level anti-jamming circuit, and the Sheffer stroke gate that has the Si Mite input has further improved the antijamming capability of circuit; The state of door sensor can be read by 6 pin of U1B, and open for door " 0 ", and " 1 " is closed for door, and network numbering is " DOORST ".When door is opened or when re-powering, MOSFFET switching tube Q1 BS250 conducting is a microprocessor power supply, network label " MCUVOT "; After microprocessor starts, at first take over the power supply of self, whether next detects has abnormal operation information and carries out respective handling among the EEPROM, has realized re-powering back monitoring function automatically.

Among Fig. 5: power supply current supply circuit VCC place and earth terminal are connected to the electric capacity of CF 1F/5.5V, and all controller circuitry is according to low power dissipation design, and therefore after the outage, controller still can be under the capacitor discharge effect, obtain continuing monitoring with interior in 24 hours.

Among Fig. 6: the interface circuit part of the RA1 of single-chip microcomputer, RA2 pin, receive on output photoelectrical coupler PS2703 OP5, the OP6 by the 1K Ohmage.Therefore, after warning message occurring, can information be sent to information receiving module, realize the information remote transmitting function by OP5, OP6.

Claims

1, low-voltage-powered type Based Intelligent Control metering ammeter box controller, it is to continue supervisory circuit by housing, door sensor, microprocessor, electron key, warning message teletransmission interface circuit, outage to constitute, power supply current supply circuit VCC place and the earth terminal that continues supervisory circuit that it is characterized in that cutting off the power supply is connected to an electric capacity, and the RA1 of the single-chip microcomputer of warning message teletransmission interface circuit, RA2 pin are received on output photoelectrical coupler PS27030P5, the OP6 by R20, R21 two resistance respectively.

2, according to the described low-voltage-powered type Based Intelligent Control metering ammeter box controller of claim 1, it is characterized in that a door sensor circuit input end A electric capacity in parallel with earth terminal.

3, according to the described low-voltage-powered type Based Intelligent Control metering ammeter box controller of claim 1, it is characterized in that electron key is to select for use DS1990A, DS1992 to be respectively private key and common key.