CN201237632Y - Intelligent accumulator checking and monitoring instrument - Google Patents

Abstract

The utility model relates to an intelligent battery inspection monitor. An input interface is connected with positive electrodes of all the batteries of a series battery set; proper voltage is formed by a resistance voltage-dividing network, then is provided to an intelligent module, is operated and compared by the intelligent module, and is output to a digital display module so as to respectively display the voltage values and the status flags of all the batteries and the battery set; and when batteries are found to be abnormal, alarm signals are sent by a fault alarm circuit. The whole product does not need components adjusted manually. The technology can provide the information of overvoltage alarm and undervoltage alarm of the batteries and alarm that single battery voltage deviates the average value of all the batteries and the like; the specific values of various parameters are respectively viewed or configurated again conveniently by user through a computer; and the utility model can realize remote control or centralized monitoring by a network.

Description

Intelligent accumulator checking and monitoring instrument

Affiliated technical field

The present invention relates to patrolling and examining and monitoring of battery pack, belong to the electron controls technology field.

Background technology

It is lower that present battery pack is patrolled and examined the intelligent degree that product judges battery failure, and the parameter of failure detection in use is difficult to change.Present battery pack is patrolled and examined the simulated measurement input circuit that product generally includes digital light-coupled isolation, and as the accumulator voltage monitoring circuit of patent 200510029073.4 passive isolation, sort circuit use components and parts are many, cost is high, the production inconvenient debugging.

Summary of the invention

The purpose of this invention is to provide a kind ofly use that components and parts are few, low-cost, small size, highly reliable accumulator checking and monitoring instrument, entire product does not need the artificial components and parts of adjusting.By using this technology, the superpotential alarm of battery pack, the information such as mean value alarm that under-voltage is alarmed, single cell voltage departs from each battery just can be provided, how many occurrences of various parameters is, all can check easily or reconfigure by computing machine, can realize Long-distance Control or Centralized Monitoring by network by the user.

The object of the present invention is achieved like this: intelligent accumulator checking and monitoring instrument, input interface links to each other with the positive pole of each accumulator of series connection battery pack, after forming suitable voltage, resistance pressure-dividing network offers intelligent object, by the computing of intelligent object process, relatively, output to digital display module and show the magnitude of voltage and the Status Flag of each accumulator and battery pack respectively, when finding to have accumulator undesired, send alarm signal by the fault warning circuit, realize checking or reconfigure and running parameter being monitored in real time of parameter by communication interface module, it is characterized in that comprising following hardware circuit:

Power supply [1]: for accumulator checking and monitoring instrument provides dc supply;

Intelligent object [2]: include program storage, non-volatile scratch pad memory, A/D convertor circuit and control program;

Input interface [3]: the input channel of digital quantity or analog quantity links to each other with intelligent object [2];

Resistor voltage divider network [4]: be used for the voltage of each accumulator is carried out dividing potential drop, provide suitable voltage signal, link to each other with intelligent object [2] to intelligent object;

Communication interface module [6]: be used for and external communication, link to each other with intelligent object [2];

Digital display module [7]: be used to show the magnitude of voltage and the Status Flag of each accumulator and battery pack, link to each other with intelligent object [2].

Fault warning circuit [8]: be used for the audible and visual alarm signal, link to each other with intelligent object [2].

Resistor voltage divider network [4] does not need isolated component, directly is electrically connected with each battery and intelligent object [2] formation.

The present invention uses above-mentioned critical piece to combine according to above-mentioned design, and its principle of work is:

Utilize the high-performance single-chip microcomputer as intelligent object, the voltage signal that provides by input interface, through resistor voltage divider network the voltage of each accumulator is carried out dividing potential drop, the voltage signal of being convenient to carry out the AD conversion is provided to intelligent object, data after by intelligent object AD being changed again are through computing, relatively and with user configured alarm parameter compare, analyze, the magnitude of voltage and the Status Flag that show each accumulator and battery pack by digital display module, when finding to have accumulator undesired, send the audible and visual alarm signal by the fault warning circuit, realize checking or reconfiguring of parameter and running parameter carried out real time monitoring that by communication interface module user configured parameter is stored in the non-volatile erasable data-carrier store.

Intelligent object is programmed by DLL (dynamic link library), expands the function of accumulator checking and monitoring instrument if desired, does not generally need to change hardware, only needs to revise software, realizes its function expansion under the control of software.

Send corresponding instruction by communication interface module to intelligent object, can read or reconfigure various parameters easily.Communication modes can be the mode that directly links to each other with intelligent object, also can be by cable network or wireless network telecommunication mode.

Advantage of the present invention and effect:

(1) battery pack that many accumulators are in series constantly detects, thereby judges fail battery, in time provides signal, reminds the maintainer in time battery pack to be safeguarded, to avoid owing to the battery pack problem causes the system works interruption.

(2) electric current of drawing from every accumulator sample line is lower than 0.1 milliampere.

(3) detect the accumulator number of elements of being connected automatically.

(4) Automatic Cycle shows the voltage and the total voltage of each accumulator, shows the malfunction sign simultaneously.

(5) every cell voltage has four kinds of malfunctions: the super upper limit, super lower limit, depart from the average upper limit, depart from average lower limit, the accuracy that battery failure is judged improves greatly.

(6) adopt 6 LED charactrons to show that dynamically displaying contents is complete.

(7) the sound and light alarm indication is arranged.

(8) have real-time monitor-interface, can monitor the various states of battery pack by computing machine, the voltage of every battery and state come into plain view on the monitoring software interface.

(9) various functions or protection parameter are easy to configuration, can be by user oneself configuration easily at any time.

(10) can carry out remote monitoring, Centralized Monitoring easily.

(11) owing to adopt non-volatile scratch pad memory to preserve data, the parameter of configuration still can not lost after outage.

(12) the accumulator checking and monitoring instrument cost of producing with the present invention is low, volume is little, reliability is high.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a circuit block diagram of the present invention.

Fig. 2 is the circuit theory diagrams based on intelligent object and power supply of embodiment.

Fig. 3 is the resistance pressure-dividing network circuit theory diagrams of embodiment.

Fig. 4 is the digital display module circuit theory diagrams of embodiment.

Embodiment

Referring to Fig. 1, intelligent object [2] is electrically connected with input interface [3], resistance pressure-dividing network [4], DLL (dynamic link library) [5], communication interface module [6], digital display module [7], fault warning circuit [8] formation respectively, power supply [1] provides direct-current working volts and electric current for entire circuit, constitutes with relevant part to be electrically connected.Intelligent object has constituted intelligent accumulator checking and monitoring instrument under the scheduling of above-mentioned interlock circuit and software.

Referring to Fig. 2, power supply [1] is made up of socket CZ1, integrated voltage stabilizer U1, capacitor C 1, C2, C3, C4, constitutes with the other parts of circuit to be electrically connected, for relevant portion provides working power.From CZ1 input 9～12V DC voltage, output 5V voltage is exported 3.3V again after U2 (model is LD1117S33C) voltage stabilizing after U1 (model is LM7805) voltage stabilizing, is single-chip microcomputer and interlock circuit power supply.Resistance R 2 and light emitting diode D2 provide the indication of power source voltage state.

Intelligent object [2] is made of high speed, high-performance single-chip microcomputer U3, model is C8051F310, its inside is integrated with oscillator, in the FLASH of system programmable storer, JTAG debug circuit, temperature sensor, nearly 21 tunnel analog to digital conversion circuit (ADC), four general 16 bit timing device/counters, hardware SMBus (I2C compatibility), UART serial ports, PCA module etc., it is the kernel control chip of this product.Resistance R 1, capacitor C 5 provide power-on reset signal to single-chip microcomputer, and resistance R 3, stabilivolt U6, capacitor C 6 are formed mu balanced circuits, constitute with single-chip microcomputer to be electrically connected, give single-chip microcomputer A/D convertor circuit stable voltage reference signal is provided.The interlock circuit of capacitor C 9, C10, crystal Y1 and single-chip microcomputer U3 inside produces oscillator signal, as the system clock of single-chip microcomputer.

DLL (dynamic link library) [5] is made up of socket CZ8, resistance R 11, constitutes with single-chip microcomputer to be electrically connected.Single-chip microcomputer carries out emulation, programming operation by this interface, if by separate equipment intelligent object [2] is programmed, then this interface can omit.

Communication interface module [7] is made up of socket CZ3, resistance R 4, R5, R6, R7, photoelectrical coupler U4, U5, constitutes with single-chip microcomputer to be electrically connected.The 2nd, 3 pins of CZ3 are respectively the Data Receiving pin and data send pin, and the 1st, 4 pins are the communication power supply.Single-chip microcomputer is connected with serial ports of computers or SMS/GPRS/CDMA module by this interface, and computing machine is directly monitored or the state and the parameter of wireless remote monitering accumulator so that pass through.

Fault warning circuit [9] is made up of light emitting diode D3, resistance R 12, R13, R14, triode V1, capacitor C 7, hummer FM1, constitutes with single-chip microcomputer to be electrically connected.When detecting accumulator failure, single-chip microcomputer P3.1 pin output high level drives the FM1 sounding by triode, the voice signal indication during as fault, the light signal indication when D3 is fault.

Resistance R 15, R16, capacitor C 8, jumper wire device JP1 expand as the function of external control, and single-chip microcomputer is carried out different functions by short circuit or the open-circuit condition of judging JP1.

Referring to Fig. 3, input interface [3] is made up of socket CZ5～CZ9, and the voltage sampling signal of accumulator is provided, and B1～B18 connects the positive pole of the 1st～18th accumulator respectively, the 18th battery positive voltage is the positive pole of battery pack, and the voltage of this utmost point anticathode is the total voltage of battery pack.

Resistance pressure-dividing network [4] is made up of resistance R 41～R58, R65～R68, R73～R78, R79～R88, R29, R38, U7, U8, constitutes with single-chip microcomputer to be electrically connected.Offer single-chip microcomputer and carry out the AD conversion after resistance pressure-dividing network forms suitable voltage, calculate the voltage of each battery, the parameter value of each resistance all indicates in Fig. 3.Capacitor C 21～C38 is as anti-interference filtration.Corresponding network label formation directly is electrically connected among each network label among Fig. 3 and Fig. 1.

Referring to Fig. 4, digital display module [7] is made up of socket 1CZ1, integrated circuit 1U1 (model is MAX7219), LED charactron DS1, DS2, resistance 1R2～1R5, electric capacity 1C1,1C2, constitutes with single-chip microcomputer to be electrically connected.CZ2 socket among 1CZ1 and Fig. 2 is by the corresponding connection of lead, single-chip microcomputer is constantly given digital display module output signal by the 1CZ1 socket, drive by 1U1, show the magnitude of voltage and the Status Flag of each accumulator and battery pack through LED charactron DS1, DS2.

Claims (2)

1, intelligent accumulator checking and monitoring instrument, input interface links to each other with the positive pole of each accumulator of series connection battery pack, after forming suitable voltage, resistance pressure-dividing network offers intelligent object, by the computing of intelligent object process, relatively, output to digital display module and show the magnitude of voltage and the Status Flag of each accumulator and battery pack respectively, when finding to have accumulator undesired, send alarm signal by the fault warning circuit, realize checking or reconfigure and running parameter being monitored in real time of parameter by communication interface module, it is characterized in that comprising following hardware circuit:

Power supply [1]: for accumulator checking and monitoring instrument provides dc supply;

Intelligent object [2]: include program storage, non-volatile scratch pad memory, A/D convertor circuit and control program;

Input interface [3]: the input channel of analog quantity links to each other with intelligent object [2];

Resistor voltage divider network [4]: be used for the voltage of each accumulator is carried out dividing potential drop, provide suitable voltage signal, link to each other with intelligent object [2] to intelligent object;

Communication interface module [6]: be used for and external communication, link to each other with intelligent object [2];

Digital display module [7]: be used to show the magnitude of voltage and the Status Flag of each accumulator and battery pack, link to each other with intelligent object [2].

Fault warning circuit [8]: be used for the audible and visual alarm signal, link to each other with intelligent object [2].

2, intelligent accumulator checking and monitoring instrument according to claim 1 is characterized in that resistor voltage divider network [4] does not need isolated component, directly is electrically connected with each battery and intelligent object [2] formation.

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