CN202004525U

CN202004525U - Monitoring device for EPS power supply system

Info

Publication number: CN202004525U
Application number: CN2011200091341U
Authority: CN
Inventors: 黄建成
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-13
Filing date: 2011-01-13
Publication date: 2011-10-05
Anticipated expiration: 2021-01-13

Abstract

The utility model relates to the field of power supplies, in particular to a monitoring device for an EPS (Electric Power Storage) power supply system, which comprises a DC voltage acquisition circuit and a central control processor, wherein, output signals of the DC voltage acquisition circuit are transmitted to the central control processor through a voltage comparison circuit; the output of the central control processor is connected with an indicating circuit, a double-power drive circuit and a GSM (Global System for Mobile Communications) module transceiver circuit; in addition, the monitoring device alarms and also sends a short message to notice an operator on duty when battery voltage is below a system setting value, and drives double power supplies to be switched to another power supply so as to ensure the power supply, so that heavy accidents caused by power failure can be avoided.

Description

EPS power-supply system supervising device

Technical field

The utility model relates to field of power supplies, is specifically related to a kind of EPS power-supply system supervising device.

Background technology

Emergency power supply (Emergency Power Supply, EPS) form by battery and control system, in the use of all kinds of one-levels and particular importance load, if their power supply interruption suddenly can cause the great person or device security accident, production to people, life causes heavy losses and influence, steel-making oxygen rifle as metallurgical system promotes, fascinate, the ventilation blower of heating furnace, the work power supply of direct current cabinet and all kinds of buildings and fire-fighting power supply, hospital's safe power supply, the traffic system highway, the tunnel, subway, the power supply on airport, all kinds of productions that can not cut off the power supply, power supply of testing equipment or the like, in a single day these equipment power supply in the process of work interrupts, and will cause great accident.

The utility model content

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of EPS power-supply system supervising device is provided.

The technical scheme that the utility model adopted is such: EPS power-supply system supervising device, comprise direct voltage Acquisition Circuit and central control processor, the output signal of described direct voltage Acquisition Circuit sends to central control processor through voltage comparator circuit, and described central control processor output connects indicating circuit, duplicate supply drive circuit, gsm module transmission circuit.

Described direct voltage Acquisition Circuit comprises the bridge rectifier that is connected in the battery two ends, and described bridge rectifier output connects filter capacitor and adjustable resistance.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: when cell voltage is lower than system settings, give a warning and SMS notification is given the operator on duty, and drive duplicate supply and be converted to another road power supply and guarantee that power supply supplies with, avoided the major accident of bringing to people because of having a power failure.

Description of drawings

Fig. 1 is a frame structure schematic diagram of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

Embodiment

Further specify the utility model below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, EPS power-supply system supervising device, comprise direct voltage Acquisition Circuit 1 and central control processor 2, the output signal of described direct voltage Acquisition Circuit 1 sends to central control processor 2 through voltage comparator circuit 11, and described central control processor 2 outputs connect indicating circuit 21, duplicate supply drive circuit 22, gsm module transmission circuit 23.

As shown in Figure 2, described direct voltage Acquisition Circuit 1 comprises the bridge rectifier that is connected in battery DV two ends, described bridge rectifier output connects the voltage of filter capacitor C1, C2 and adjustable resistance W. battery DV output through the rectification of D1-D4 bridge circuit, the conversion battery both positive and negative polarity is avoided causing fault because of the both positive and negative polarity wrong.Cell voltage is input to the 5th pin of voltage comparator circuit IC3 through capacitor C 1, C2 filtering after rectification, be input to voltage comparator circuit IC3 the 6th pin by the output of resistance R 1, R2 and form voltage ratio than initialization circuit, when the 5th pin current potential of voltage comparator circuit IC3 is lower than the 6th pin current potential, illustrate that cell voltage has been reduced to dangerous values, answer Switching power and inform operator on duty's handling failure.Voltage comparator circuit IC3 internal circuit upset this moment, its the 7th pin output high level is through resistance R 3 current limlitings, be input to the 35th pin of single-chip microcomputer IC1, the 35th pin of single-chip microcomputer IC1 is high level state, after single-chip microcomputer IC1 internal processes control and treatment, divide three tunnel outputs, the first via makes LED 1 light luminous alarm by the 3rd pin output low level of single-chip microcomputer IC1 through resistance R 4 current limlitings; The second tunnel output makes triode Q1 conducting by the 8th pin output high level of single-chip microcomputer IC1 through resistance R 6, the relay J adhesive, and switch J-1 is converted to another road power supply assurance power supply supply by transferring normally closed some promotion duplicate supply normal battle to; Third Road is exported by the 21st, 22,23,24 pin and the gsm module IC2 of single-chip microcomputer IC1, is formed the transfer of data telecommunication circuit, gsm module IC2 connects pull-up resistor R8-R11, send data command driving gsm module IC2 by single-chip microcomputer IC1 and send the control centre personnel mobile phone of SMS alarm information, show current " EPS electric power system power supply undersupply " prompting message to appointment.

More than show and described basic principle of the present utility model and principal character and advantage thereof; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1.EPS power-supply system supervising device, it is characterized in that: comprise direct voltage Acquisition Circuit (1) and central control processor (2), the output signal of described direct voltage Acquisition Circuit (1) sends to central control processor (2) through voltage comparator circuit (11), and described central control processor (2) output connects indicating circuit (21), duplicate supply drive circuit (22), gsm module transmission circuit (23).

2. EPS power-supply system supervising device according to claim 1 is characterized in that: described direct voltage Acquisition Circuit (1) comprises the bridge rectifier that is connected in the battery two ends, and described bridge rectifier output connects filter capacitor and adjustable resistance.