CN2729922Y - Digital battery information display device - Google Patents

Abstract

The utility model provides a digital battery information display device, comprising the control circuit of a microprocessor, a data interface and a liquid crystal display. The digital battery information display device is characterized in that the data lines DB0-DB7 of the digital liquid crystal display LCD1 are respectively attached to the end ports of the RB0-RB7 of the microprocessor IC 1. the LCD1 enables an energy end E to attach to the RA0 end of the IC1. The read-write end R/W of the LCD1 is attached to the RA1 end of the IC1. The selecting end RS of the register of the LCD1 is attached to the RA2 end of the IC1. The backlight plate LEC+ of the LED is attached to the RA3 end of the IC1. One end of a buzzer B1 is attached to a ground, and the other end is attached to the RC1 end of the IC1. One end of a button S1 is attached to the ground, and the other end is attached to the RA4 and RA5 ends of the IC1. The clock end SMK of the data interface is connected with the RC 3 end of the IC1, and the data end SMD of the data interface is connected with the RC4 end of the IC1.

Description

Digitlization battery information display unit

Technical field

The utility model belongs to the intelligent accummulator administrative class, be a kind of various information that can read the digitlization battery that meets digital battery SMBus communications protocol specifically, multiple digital information such as the number of times that uses as the voltage of the actual up duration of battery, active volume and battery, charging and discharging currents, manufacturer, build date, charge and discharge cycles, chemical property and device shown in real time on LCDs.

Background technology

Ordinary circumstance, digitlization battery with digital battery SMBus communications protocol, its numerous battery management information must read by computer, therefore, in the direct computed occasion of many inconveniences, the needs that people in time understand digital battery information have been limited.The scheme that data display screen directly is made of one with battery is also arranged in addition, and still this scheme has 3 deficiencies: the one, and display screen is all the time at the part electric power of consuming cells, particularly influences battery life during the battery long-term storage; The 2nd, the energy content displayed is few, is difficult to satisfy user's needs; The 3rd, because LCD and control chip price are higher, every battery device cost significantly increases.

Summary of the invention

The purpose of this utility model is to avoid above-mentioned prior art not enough and a kind of digitlization battery information display unit of being made up of microprocessor control circuit and data-interface and LCD is provided.In the time of needs, it is inserted on the battery with digital private interface, people can read the various information of digitlization battery rapidly easily, and the time spent can not take off.In addition, this device can be monitored the dump power of digital battery operating state automatically, reminds the user in time to change battery by buzzer sounding and liquid crystal display screen backlight flicker alarm in 5 minutes in advance.

The purpose of this utility model can reach by following measure:

A kind of digitlization battery information display unit, data wire DB0～the DB7 that it is characterized in that digital lcd LCD1 receives respectively on the port of RB0～RB7 of microprocessor IC1, the Enable Pin E of digital lcd LCD1 receives the RA0 end of microprocessor IC1, the read-write end R/W of digital lcd LCD1 receives the RA1 end of microprocessor IC1, the register selecting side RS of digital lcd LCD1 receives the RA2 end of microprocessor IC1, and the backlight LED+ of digital lcd LCD1 receives the RA3 end of microprocessor IC1; Buzzer B1 one end ground connection, the other end are received the RC1 end of microprocessor IC1; Button S1 one end ground connection, the other end are received RA4 and the RA5 end of microprocessor IC1; The RC3 end of the clock end SMK of data-interface and microprocessor IC1 joins, and the data terminal SMD of data-interface and the RC4 of microprocessor IC1 end join.

The utility model has following advantage compared to existing technology:

1, this device can read the various data of digitlization battery fast, and tens information such as the number of times that uses of real-time voltage, charging and discharging currents, manufacturer, build date, the charge and discharge cycles that demonstrates on liquid crystal display screen as the actual up duration of battery, active volume and battery, chemical property.

Automatic warning function when 2, this device has the battery capacity deficiency.No matter load size all can exhaust preceding 5 minutes in battery capacity and send sound and light alarm, reminds the user in time to change battery.In addition, can close this device audible alarm function in the occasion that needs are quiet by the button setting according to user's hope.

3, this device is only realized the setting of turning over screen demonstration and sound warning function of different information, handled easily person's use by the design of software and hardware with a button.

4, this device can take off not consuming electric power at any time in time spent not from digital battery; And the digital battery electric energy on being contained in power consumption equipment such as video camera refills after can directly this device being unloaded on the digital battery after another piece is changed when exhausting, and proceeds Working Status Monitoring.

Description of drawings

Fig. 1 is the utility model electrical schematic diagram.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described:

1, digital battery information is read in and displaying principle

After this device was contained on the digital battery, the both positive and negative polarity of battery numeral special purpose interface provided power supply through plug Vcc and GND to it, and device is started working.According to the program of implanting in advance among the microprocessor IC1 CPU, clock end SMK and the data terminal SMD number bus of data-interface of this device by data-interface reads the information of battery up duration with the default mode self-timing, and shows by digital lcd LCD1.Button S1 presses once, and program response is interrupted, and reads battery remaining power information, refreshes the content of display screen.Button S1 presses once again, and program reads the next information cell voltage of battery again, refreshes the content of display screen again.Thus and thus, button S1 whenever presses once, and program just reads next bar information of battery successively, as battery current, battery temperature, discharge and recharge number of times, build date, manufacturer, chemical property or the like.After reading an information at every turn and showing a period of time, if button S1 no longer presses, the information that program will be got back to default mode automatically reads and shows.

2, power shortage sound and light alarm principle

The backlight of digital lcd LCD1 is to light by the RA3 port high level of microprocessor IC1.After this device reads the information of battery up duration at every turn, capital and default time of fire alarming contrast, in case the battery up duration is less than time of fire alarming, saltus step up and down appears in microprocessor IC1 control RA3 port level, make the backlight of digital lcd LCD1 produce significantly bright dark variation, simultaneously, microprocessor IC1 will make buzzer B1 sounding by RC1 port output audio signal, reach the sound and light alarm effect.In some special occasion, need temporarily keep quite, button S1 can be continued to press 5 seconds, Automatic Program is closed the audible alarm function, and the audible alarm prompting symbol on the display screen disappears.If need audible alarm again, button S1 can be continued to press 5 seconds, program is opened the audible alarm function once more, reappears the audible alarm symbol prompting on the display screen.

Claims (1)

1, a kind of digitlization battery information display unit, data wire DB0～the DB7 that it is characterized in that digital lcd LCD1 receives respectively on the port of RB0～RB7 of microprocessor IC1, the Enable Pin E of digital lcd LCD1 receives the RA0 end of microprocessor IC1, the read-write end R/W of digital lcd LCD1 receives the RA1 end of microprocessor IC1, the register selecting side RS of digital lcd LCD1 receives the RA2 end of microprocessor IC1, and the backlight LED+ of digital lcd LCD1 receives the RA3 end of microprocessor IC1; Buzzer B1 one end ground connection, the other end are received the RC1 end of microprocessor IC1; Button S1 one end ground connection, the other end are received RA4 and the RA5 end of microprocessor IC1; The RC3 end of the clock end SMK of data-interface and microprocessor IC1 joins, and the data terminal SMD of data-interface and the RC4 of microprocessor IC1 end join.