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WO2016000488A1 - 充电进程指示系统及方法 - Google Patents

充电进程指示系统及方法 Download PDF

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Publication number
WO2016000488A1
WO2016000488A1 PCT/CN2015/078427 CN2015078427W WO2016000488A1 WO 2016000488 A1 WO2016000488 A1 WO 2016000488A1 CN 2015078427 W CN2015078427 W CN 2015078427W WO 2016000488 A1 WO2016000488 A1 WO 2016000488A1
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microcontroller
power
signal
storage device
current
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French (fr)
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林世雄
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LINSHIUNG ENTERPRISE CO Ltd
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LINSHIUNG ENTERPRISE CO Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the invention relates to a charging process indication system and method.
  • Electronic products are becoming more and more popular. Generally, electronic products use power storage devices to facilitate carrying. When charging electronic products, they often do not know how much power is stored in the electronic devices. Some electronic products need to turn on electronic products and light the screen. It is troublesome to see the current power of the power storage device.
  • a charging progress indicating system comprising a microcontroller and a display module, wherein the microcontroller receives a voltage signal across the external power storage device and a current when the external charger charges the power storage device The signal, the microcontroller includes a comparison module, the microcontroller processes the voltage signal and the current signal and sends the signal to the comparison module, and the comparison module compares the ratio of the voltage change to the time and the power and the rate of change of the voltage, and compares the current signal with the current signal.
  • the current power set value is compared, the comparison module sends the comparison result to the microcontroller, the microcontroller sends a power display instruction to the display module, and the display module executes the display instruction to display the power information.
  • the microcontroller can further include a resistor, a resistor, an external charger, and a power storage device connected in series to the same circuit, and the resistor sends the current signal to the microcontroller.
  • the microcontroller can receive the current signal sent by the resistor, that is, the current signal that the microcontroller can receive when the external charger charges the power storage device.
  • a charging process indication method comprising the steps of:
  • the microcontroller processes the current signal and the voltage signal
  • the microcontroller sends the processed current signal and voltage signal to the comparison module
  • the comparison module compares the processed current signal with the current power set value and compares the ratio of the voltage change to the time and the power and the rate of change of the voltage;
  • the comparison module obtains the first power information and the second power information, and the comparing module sends the first power signal and the second power signal to the microcontroller;
  • the microcontroller processes the received first power signal and the second power signal to obtain an average power
  • the microcontroller sends an instruction of the average power signal to the display module
  • the display module displays the battery information.
  • the microcontroller in the present invention can receive the voltage signal sent from both ends of the external power storage device and the current signal when the power storage device is charged, and then obtain the current power of the power storage device through the comparison module, and the microcontroller controls the display module to display Through the current power information, the current power of the power storage device can be visually seen by the present invention, and the microcontroller calculates the average value of the power according to the first power signal and the second power signal, and sends the power to the display module for display. To a certain extent, the reduction depends only on the current to derive the error of the electricity.
  • FIG. 1 is a schematic diagram of a charging process indication system according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a charging process indication method according to an embodiment of the present invention.
  • Fig. 1 schematically shows the principle of a charging progress indicating system of an embodiment of the present invention.
  • a charging process indicating system includes a microcontroller 1 and a display module 2.
  • the microcontroller 1 includes a resistor and comparison module 11.
  • a resistor can be connected in series on the circuit where the power storage device 4 and the charger 3 are located, and can be measured.
  • the current flowing through the power storage device 4 transmits a current signal to the microcontroller 1, and the microcontroller 1 can receive a voltage signal (in this case, an analog signal) emitted from both ends of the power storage device 4.
  • a current sensor may be mounted on the circuit in which the charger 3 and the power storage device 4 are located, and only the microcontroller 1 can receive the current signal of the circuit in which the power storage device 4 is located.
  • the microcontroller 1 After the microcontroller 1 receives the voltage signal and the current signal, the microcontroller 1 undergoes A/D conversion (analog-to-digital conversion), and the voltage signal is processed as follows: converting the (analog) voltage signal into a (digital) voltage signal And integrate the current (digital) voltage, and subtract the previous time voltage to average the integral (that is, find the voltage change), and then divide by the corresponding time (that is, by the formula ⁇ u/ ⁇ t) ⁇ dt is calculated), that is, the ratio of the voltage (average value) change to time in a very short period of time (ie, the derivative of the voltage with respect to time) can be obtained, and the current signal is integrated and averaged (ie, by the formula ⁇ ⁇ i/ ⁇ t ⁇ dt is calculated).
  • the module 2 will display an erroneous display at the moment of current and voltage fluctuations, and the integral average operation can reduce the error and eliminate the error. Misdisplayed.
  • the microcontroller 1 transmits the ratio of the processed voltage change to the time and the current signal to the comparison module 11, and the comparison module 11 compares the ratio of the voltage change to the time with the amount of power and the rate of change of the voltage (per A ratio of voltage change to time corresponds to a quantity of electricity.
  • the ratio of different voltage changes to time corresponds to different amounts of electricity, which can be set before leaving the factory. After comparison, the first quantity of electricity information is obtained, and the comparison module 11 receives current.
  • the signal is compared with the current power set value (each current corresponds to one power, different currents correspond to different powers, which can be set before leaving the factory), and the second power information is obtained after comparison, and the comparison module 11 sends The first power signal and the second power signal are sent to the microcontroller 1.
  • the microcontroller 1 is electrically connected to the display module 2 , and the microcontroller 1 obtains an average value of the first power amount and the second power amount, and sends a power average value signal command to the display module 2, and the display module 2 The battery level is displayed after receiving the command.
  • the microcontroller 1 can use the 8051F300 microcontroller, or the microcontroller can be other microcontrollers with the same function.
  • the display module 2 is four indicator lights, one of which emits red light, and the other three indicators emit green light, and the display module 2 is electrically connected to the microcontroller 1 so that when the power storage device 4 When the power is between 0% and 24%, the microcontroller 1 sends a power signal to the red light, so that the red light is on.
  • the power storage device 4 When the power storage device 4 is at 25% to 49%, a green light is on, and the power storage device 4 is at 50.
  • the temperature is from % to 74%, the two green lights are on.
  • the power storage device 4 is at 75% to 99%, three green lights are on.
  • the power storage device 4 is at 100%, the four green lights are on. The user can press the current one.
  • the display module 2 can be a display screen, and the display screen can receive the power display command sent by the microcontroller 1 to directly display the current power of the power storage device 4 (the displayed power value can be from 0% to 100. Any percentage of %), or other means can be used to display the current power storage device 4, regardless of the display mode, only the user needs to display the content displayed by the display module 2, can determine whether the power storage device is Whether charging and charging are over.
  • the present invention can be mounted on the charger 3, or can be mounted on the data line 5, or can be mounted on the power storage device 4 of the electronic product, and the microcontroller 1 can receive the power storage device regardless of where it is installed.
  • the voltage signal from the terminal can be used.
  • FIG. 2 is a view schematically showing the flow of a charging process instructing method according to an embodiment of the present invention.
  • the charging process indication method is as follows:
  • Step 101 Connect a resistor in series with the external charger and the power storage device on the same circuit, and connect the microcontroller 1 to the circuit where the external charger and the power storage device are located;
  • Step 102 Turn on the charger on the household power source, the resistor sends a current signal to the microcontroller 1, and the microcontroller 1 receives the voltage signal sent by the power storage device;
  • Step 103 The microcontroller 1 processes the current signal and the voltage signal (calculated after integrating and averaging);
  • Step 104 The microcontroller 1 sends the processed current signal and voltage signal to the comparison module 11;
  • Step 105 The comparison module 11 compares the processed current signal with the current power set value, and compares the ratio of the voltage change to the time and the set value of the power and the rate of change of the voltage;
  • Step 106 After comparison, the comparison module 11 obtains the first power information and the second power information, the comparison module 11 sends the first power signal and the second power signal to the microcontroller 1;
  • Step 107 The microcontroller 1 processes the received first power signal and the second power signal to obtain average power information.
  • Step 108 The microcontroller 1 sends an instruction of the average power signal to the display module 2;
  • Step 109 The display module 2 displays the power amount information.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种充电进程指示系统及方法，包括微控制器（1）和显示模块（2），微控制器（1）可以接收外部蓄电装置（4）两端发送的电压信号和以及蓄电装置（4）充电时的电流信号，进而通过比较模块（11）得出蓄电装置（4）当前的电量，微控制器（1）控制显示模块（2）显示出当前的电量信息，通过该充电进程指示系统可以直观地看到蓄电装置（4）当前的电量，微控制器（1）是根据第一电量信号和第二电量信号计算得出电量平均值，并发送给显示模块（2）显示，可以在一定程度上，减小仅仅依靠电流来得出电量的误差。

Description

充电进程指示系统及方法 技术领域
本发明涉及一种充电进程指示系统及方法。
背景技术
电子产品的日趋普及，一般电子产品都采用蓄电装置以方便携带，当对电子产品进行充电时，往往都不知道蓄电装置的电量有多少，一些电子产品需要开启电子产品并点亮屏幕才能看到蓄电装置当前的电量，使用起来比较麻烦。
虽然市场上已经存在一些能够通过外部的装置来直观的看到蓄电装置充电量的多少，这种装置仅仅测量蓄电装置充电时，蓄电装置所在电路的电流，并通过充电时的电流电量曲线来判断当前的充电情况，仅仅依靠电流判断充电情况往往会存在不同蓄电装置容量无法正确显示。
发明内容
本发明的目的是提供一种充电进程指示系统及方法，以解决上述问题的至少一个方面。
根据本发明的一个方面，提供了一种充电进程指示系统，包括微控制器和显示模块，其中，微控制器接收外部蓄电装置两端的电压信号以及外部充电器对蓄电装置充电时的电流信号，微控制器包括比较模块，微控制器将电压信号和电流信号进行处理并发送至比较模块，比较模块将电压变化与时间的比值和电量与电压变化率进行比对，以及将电流信号与电流电量设定值进行比对，比较模块发送比对结果给微控制器处理，微控制器向显示模块发送电量显示指令，显示模块执行显示指令，显示电量信息。
在一些实施方式中，微控制器还可以包括一电阻，电阻、外部充电器和蓄电装置通过串联方式连接于同一电路上，电阻发送所述电流信号至微控制器。由此，微控制器可以接收电阻发送的电流信号，也即是微控制器可以接收外部充电器对蓄电装置充电时的电流信号。
根据本发明的另一个方面，提供了一种充电进程指示方法，包括以下步骤：
a)将一电阻与外部充电器和蓄电装置串联连接于同一电路上同时将微控制器连接在外部充电器和蓄电装置所在的电路上；
b)将充电器接通在家用电源上，电阻发送电流信号给微控制器，同时微控制器接收蓄电装置发送的电压信号；
c)微控制器将电流信号和电压信号进行处理；
d)微控制器将处理后的电流信号和电压信号发送给比较模块；
e)比较模块将处理后的电流信号与电流电量设定值进行比对以及，将电压变化与时间的比值和电量与电压变化率进行比对；
f)比对后，比较模块得出第一电量信息和第二电量信息，比较模块将第一电量信号和第二电量信号发送至微控制器；
g)微控制器对接收到第一电量信号和第二电量信号进行处理，得出平均电量；
h)微控制器将平均电量信号的指令发送给显示模块；
i)显示模块显示电量信息。
本发明中的微控制器可以接收外部蓄电装置两端发送的电压信号和以及蓄电装置充电时的电流信号，进而通过比较模块得出蓄电装置当前的电量，微控制器控制显示模块显示出当前的电量信息，通过本发明可以直观地看到蓄电装置当前的电量，微控制器是根据第一电量信号和第二电量信号计算得出电量平均值，并发送给显示模块显示，可以在一定程度上，减小仅仅依靠电流来得出电量的误差。
附图说明
图1为本发明一种实施方式的充电进程指示系统的原理图；
图2为本发明一种实施方式的充电进程指示方法的流程。
具体实施方式
下面结合附图说明和具体实施方式对本发明作进一步详细的说明。
图1示意性的显示了本发明一种实施方式的充电进程指示系统的原理。
如图1所示，一种充电进程指示系统，包括微控制器1和显示模块2。微控制器1包括一电阻和比较模块11。
如图1所示，充电器3与蓄电装置4(如：电池等)连通之后，在本实施例中，可以将一电阻串联在蓄电装置4和充电器3所在的电路上，可以测量流过蓄电装置4的电流，电阻将电流信号发送给微控制器1，同时微控制器1可以接收蓄电装置的4两端发出的电压信号(此时为模拟信号)。在其他实施例中，也可以在充电器3和蓄电装置4所在的电路上安装一电流传感器，只需要微控制器1能够接收蓄电装置4所在电路的电流信号即可。
微控制器1接收到电压信号和电流信号后，微控制器1经过A/D转换(模数转换)，电压信号进行处理，处理过程如下：将(模拟)电压信号转换成(数字)电压信号，并将该时刻(数字)电压进行积分平均值，再减去上一时刻电压进行积分平均值(也即是求出电压变化)，再除以相对应的时间(即通过公式∫Δu/Δt·dt进行计算)，即可以得出某一段的极短时间内电压(平均值)变化与时间的比值(即电压相对于时间的导数)，同时对电流信号进行积分平均值(即通过公式∫Δi/Δt·dt进行计算)运算。因电流和电压的大小在某些时间点可能存在很大波动，如果不进行积分计算，则在电流和电压波动的时刻显示模块2会出现误显示，进行积分平均值运算可以减小误差，杜绝误显示。
进行上述处理之后，微控制器1将上述经过处理的电压变化与时间的比值和电流信号发送至比较模块11，比较模块11将电压变化与时间的比值与电量与电压变化率进行比对(每一个电压变化与时间的比值对应一个电量，不同的电压变化与时间的比值对应不同的电量，可以在出厂前就设定好)，比对后得出第一电量信息，同时比较模块11将电流信号与电流电量设定值进行比对(每一个电流对应一个电量，不同的电流对应不同的电量，可以在出厂前就设定好)，比对后得出第二电量信息，比较模块11发送第一电量信号和第二电量信号给微控制器1。
如图1所示，微控制器1与显示模块2电连接，微控制器1求出第一电量和第二电量的平均值，并将电量平均值信号指令发送给显示模块2，显示模块2接收指令后显示电量。
微控制器1可以选用8051F300单片机，或者，微控制器也可以是其他有相同功能的单片机。
在本实施例中，显示模块2为四个指示灯，其中一个指示灯发出红光，另外三个指示灯发出绿光，显示模块2与微控制器1电连接，以使得，当蓄电装置4电量在0％～24％时，微控制器1发送电量信号给红灯，使得红灯亮，蓄电装置4电量在25％～49％时，一个绿灯亮，蓄电装置4电量在50％～74％时，两个绿灯亮，蓄电装置4电量在75％～99％时，三个绿灯亮，蓄电装置4电量在100％时，四个绿灯亮，使用者可以根据当前的绿灯和红灯的亮的情况来判断当前蓄电装置4的电量情况。在其他实施例中，显示模块2可以为显示屏，显示屏可以接收微控制器1发送的电量显示指令，直接显示出蓄电装置4当前的电量(显示的电量数值可以是从0％～100％的任意百分数)，或者可以用其他的方式来显示当前蓄电装置4的电量，不管以何种显示方式显示，只需要使用者通过显示模块2显示的内容，能够判别出蓄电装置是否在充电和充电是否结束即可。
本发明可以安装在充电器3上，也可以安装在数据线5上，也可以安装在电子产品的蓄电装置4上，不管安装在何处，只需要微控制器1能够接收蓄电装置两端发出的电压信号即可。
图2示意性的显示了本发明一种实施方式的充电进程指示方法的流程。
如图2所示，充电进程指示方法的流程如下：
步骤101：将一电阻与外部充电器和蓄电装置串联于同一电路上，同时将微控制器1连接在外部充电器和蓄电装置所在的电路上；
步骤102：将充电器接通在家用电源上，电阻发送电流信号给微控制器1，同时微控制器1接收蓄电装置发送的电压信号；
步骤103：微控制器1对电流信号和电压信号(进行积分求平均值后计算)处理；
步骤104：微控制器1将处理后的电流信号和电压信号发送给比较模块11；
步骤105：比较模块11将处理后的电流信号与电流电量设定值进行比对，以及将电压变化与时间的比值和电量与电压变化率的设定值进行比对；
步骤106：比对后，比较模块11得出第一电量信息和第二电量信息，比较模块11将第一电量信号和第二电量信号发送至微控制器1；
步骤107：微控制器1对接收到第一电量信号和第二电量信号进行处理，得出平均电量信息；
步骤108：微控制器1将平均电量信号的指令发送给显示模块2；
步骤109：显示模块2显示电量信息。
以上的仅是本发明的一些实施方式。对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于发明的保护范围。

Claims (3)

  1. 充电进程指示系统，其特征在于，包括微控制器(1)和显示模块(2)，其中，
    所述微控制器(1)接收外部蓄电装置两端发送的电压信号，以及外部充电器对蓄电装置充电时，流经蓄电装置的电流信号，
    所述微控制器(1)包括比较模块(11)，所述微控制器(1)将电压信号和电流信号进行处理并发送至比较模块(11)，所述比较模块(11)将电压变化与时间的比值和电量与电压变化率进行比对，以及将电流信号与电流电量设定值进行比对，
    所述比较模块(11)发送比对结果给所述微控制器(1)处理，所述微控制器(1)向显示模块(2)发送电量显示指令，
    所述显示模块(2)执行所述显示指令，显示电量信息。
  2. 根据权利要求1所述的充电进程指示系统，其特征在于，所述微控制器(1)还包括一电阻，所述电阻、外部充电器和蓄电装置通过串联方式连接于同一电路上，所述电阻发送所述电流信号至所述微控制器(1)。
  3. 充电进程指示方法，其特征在于，包括以下步骤：
    a)将一电阻与外部充电器和蓄电装置串联连接于同一电路上，同时将微控制器(1)连接在外部充电器和蓄电装置所在的电路上；
    b)将充电器接通在家用电源上，电阻发送电流信号给微控制器(1)，同时微控制器(1)接收蓄电装置发送的电压信号；
    c)微控制器(1)将电流信号和电压信号进行处理；
    d)微控制器(1)将处理后的电流信号和电压信号发送给比较模块(11)；
    e)比较模块(11)将处理后的电流信号与电流电量设定值进行比对以及，将电压变化与时间的比值与电量和电量与电压变化率进行比对；
    f)比对后，比较模块(11)得出第一电量信息和第二电量信息，比较模块(11)将第一电量信号和第二电量信号发送至微控制器(1)；
    g)微控制器(1)对接收到第一电量信号和第二电量信号进行处理，得出平均电量；
    h)微控制器(1)将平均电量信号的指令发送给显示模块(2)；
    i)显示模块(2)显示电量信息。
PCT/CN2015/078427 2014-07-04 2015-05-07 充电进程指示系统及方法 Ceased WO2016000488A1 (zh)

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