TWI381171B - Wireless communication terminal and battery capacitance measuring method thereof - Google Patents
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Description
本發明涉及無線通訊終端，尤其涉及一種無線通訊終端及其電池電量的測量方法。 The present invention relates to a wireless communication terminal, and more particularly to a wireless communication terminal and a method for measuring the battery power thereof.
為方便用戶，新一代的無線通訊終端，如行動電話、電腦等，整合的功能越來越多，除基本的通訊功能外，還有上網、處理郵件、拍照等資料處理功能。而功能的增多勢必導致無線通訊終端的耗電量增加，所以電池管理成為無線通訊終端產品設計中至關重要的環節。 For the convenience of users, a new generation of wireless communication terminals, such as mobile phones, computers, etc., have more and more integrated functions. In addition to basic communication functions, there are data processing functions such as Internet access, mail processing, and photo taking. The increase of functions will inevitably lead to an increase in the power consumption of wireless communication terminals, so battery management becomes a crucial link in the design of wireless communication terminal products.
對於無線通訊終端來說，精確測量電池剩餘電量至關重要。無線通訊終端在工作過程中，連續跟蹤測量電池剩餘電量，在電池剩餘電量很低時限制某些高耗能應用或者控制關機。同時，無線通訊終端也會把電池剩餘電量訊息顯示給用戶，使用戶可以根據電量提示決定是否進行充電。 For wireless communication terminals, it is important to accurately measure the remaining battery power. During the working process, the wireless communication terminal continuously tracks and measures the remaining battery power, and limits certain high energy consumption applications or controls the shutdown when the remaining battery power is low. At the same time, the wireless communication terminal also displays the remaining battery power message to the user, so that the user can decide whether to charge according to the power supply prompt.
然而，因無線通訊終端內部的電子線路及電量測量電路不精確等因素的影響，會導致對無線通訊終端電池剩餘電量的測量不準確，從而誘導用戶頻繁充電，減少了電池的使用壽命。 However, due to factors such as inaccuracies in the electronic circuit and the power measuring circuit of the wireless communication terminal, the measurement of the remaining battery power of the wireless communication terminal may be inaccurate, thereby inducing frequent charging of the user and reducing the service life of the battery.
有鑑於此，需提供一種無線通訊終端，可精確測量其電池剩餘電量。 In view of this, it is necessary to provide a wireless communication terminal capable of accurately measuring the remaining battery power.
此外，還需提供一種電池電量測量方法，可精確測量無 線通訊終端之電池剩餘電量。 In addition, it is necessary to provide a battery power measurement method that can accurately measure none. The remaining battery power of the line communication terminal.
一種無線通訊終端，包括一電池模組、一儲存模組、一電壓偵測模組及一中央處理模組。電池模組用於給該無線通訊終端供電，其可藉由一外部充電器充電。儲存模組用於儲存該電池模組之電壓偏移及該電池模組之電壓與剩餘電量之對應關係。電壓偵測模組用於偵測該電池模組之電壓。中央處理模組用於根據該電池模組充滿電且該外部充電器被拔掉時之初始電壓及該儲存模組儲存之該電池模組之電壓與剩餘電量之對應關係，計算該電池模組之電壓偏移，儲存該電壓偏移於該儲存模組中，並根據該電壓偵測模組所偵測之電壓及該儲存模組所儲存之電壓偏移，計算該電池模組之實際電壓，並根據該儲存模組所儲存之該電池模組之電壓與剩餘電量之對應關係，獲取該電池模組之實際剩餘電量。 A wireless communication terminal includes a battery module, a storage module, a voltage detection module and a central processing module. The battery module is used to power the wireless communication terminal, which can be charged by an external charger. The storage module is configured to store a voltage offset of the battery module and a correspondence between a voltage of the battery module and a remaining power. The voltage detection module is used to detect the voltage of the battery module. The central processing module is configured to calculate the battery module according to the initial voltage when the battery module is fully charged and the external charger is unplugged, and the voltage of the battery module stored in the storage module and the remaining power The voltage is offset, and the voltage is stored in the storage module, and the actual voltage of the battery module is calculated according to the voltage detected by the voltage detection module and the voltage offset stored in the storage module. And obtaining the actual remaining power of the battery module according to the correspondence between the voltage of the battery module and the remaining power stored in the storage module.
一種無線通訊終端的電池電量測量方法，包括：偵測一電池模組的電壓，並發送該偵測電壓至一中央處理模組；偵測該電池模組充滿電且外部充電器被拔掉時之初始電壓，並根據該初始電壓及一儲存模組儲存之該電池模組之電壓與剩餘電量之對應關係，計算該電池模組之電壓偏移；接收該偵測電壓，並根據該電壓偏移，計算該電池模組之實際電壓；及根據該實際電壓，查詢該儲存模組所儲存之該電池模組之電壓與剩餘電量之對應關係，獲取該電池模組之實際剩餘電量。 A method for measuring battery power of a wireless communication terminal, comprising: detecting a voltage of a battery module, and transmitting the detection voltage to a central processing module; detecting that the battery module is fully charged and the external charger is unplugged An initial voltage, and calculating a voltage offset of the battery module according to the initial voltage and a correspondence between a voltage of the battery module stored in a storage module and a remaining power; receiving the detected voltage, and according to the voltage bias The actual voltage of the battery module is calculated, and the corresponding relationship between the voltage of the battery module stored in the storage module and the remaining power is obtained according to the actual voltage, and the actual remaining power of the battery module is obtained.
本發明之無線通訊終端及其電池電量測量方法，在測得一偵測電壓後，可根據電壓偏移計算出實際電壓，從而 可精確的獲知此時之剩餘電量，避免誤導用戶。 The wireless communication terminal of the present invention and the battery power measuring method thereof can calculate the actual voltage according to the voltage offset after measuring a detected voltage, thereby Accurately know the remaining power at this time to avoid misleading users.
參閱圖1，所示為本發明一實施方式中無線通訊終端10之模組圖。在本實施方式中，無線通訊終端10包括一電池模組100、一儲存模組110、一電壓偵測模組120及一中央處理模組130。電池模組100用於給無線通訊終端10供電，其可藉由一外部充電器(未示出)充電。儲存模組100用於儲存該電池模組100之電壓偏移及該電池模組100之電壓與剩餘電量之對應關係。在本實施方式中，儲存模組100儲存該電池模組100之實際電壓與實際剩餘電量之曲線圖，其為無線通訊終端10出廠時已儲存在儲存模組100中，該電壓偏移係於無線通訊終端10第一次充滿電時計算且儲存的。電壓偵測模組120與該電池模組100相連，係用於偵測電池模組100之電壓並傳送給中央處理模組130。在本實施方式中，電壓偵測模組120偵測之電池模組100之電壓與實際之電壓有所偏差。 Referring to FIG. 1, a block diagram of a wireless communication terminal 10 in accordance with an embodiment of the present invention is shown. In the present embodiment, the wireless communication terminal 10 includes a battery module 100, a storage module 110, a voltage detection module 120, and a central processing module 130. The battery module 100 is used to power the wireless communication terminal 10, which can be charged by an external charger (not shown). The storage module 100 is configured to store the voltage offset of the battery module 100 and the corresponding relationship between the voltage of the battery module 100 and the remaining power. In the present embodiment, the storage module 100 stores a graph of the actual voltage and the actual remaining power of the battery module 100, which is stored in the storage module 100 when the wireless communication terminal 10 is shipped from the factory. The wireless communication terminal 10 is calculated and stored when it is fully charged for the first time. The voltage detecting module 120 is connected to the battery module 100 for detecting the voltage of the battery module 100 and transmitting it to the central processing module 130. In the embodiment, the voltage of the battery module 100 detected by the voltage detecting module 120 deviates from the actual voltage.
中央處理模組130與儲存模組100及電壓偵測模組120相連，用於根據該電壓偵測模組120傳送之偵測電壓及該儲存模組100儲存之電壓偏移，計算該電池模組100之實際電壓，並根據儲存模組100所儲存之電池模組100之電壓與剩餘電量之對應關係，獲取無線通訊終端10之電池模組100之實際剩餘電量。 The central processing module 130 is connected to the storage module 100 and the voltage detection module 120 for calculating the battery mode according to the detection voltage transmitted by the voltage detection module 120 and the voltage offset stored in the storage module 100. The actual voltage of the battery module 100 of the wireless communication terminal 10 is obtained according to the actual voltage of the group 100 and according to the corresponding relationship between the voltage of the battery module 100 stored in the storage module 100 and the remaining power.
在本實施方式中，無線通訊終端10還包括一充電檢測模組140，與該電池模組100及該中央處理模組130相連，用於檢測該電池模組100是否充滿電及無線通訊終端10之 該外部充電器是否被拔掉。其中當充電檢測模組140第一次檢測到電池模組100充滿電且無線通訊終端10之外部充電器被拔掉時，產生並發送一觸發訊號至該中央處理模組130；若電池模組100未充滿電而外部充電器即被拔掉，充電檢測模組140則不進行動作。電壓偵測模組120包括一偏移計算標識，該偏移計算標識包括一使能狀態及一除能狀態。該使能狀態代表電池模組100第一次剛充滿電且外部充電器被拔掉，電池模組100之電壓偏移需被計算；該除能狀態代表電池模組100之電壓偏移已被計算。在本實施方式中，該使能狀態用“0”表示，該除能狀態用“1”表示，在本發明之其他實施方式中，使能狀態與除能狀態還可用其他不同的數字或字母表示。 In the present embodiment, the wireless communication terminal 10 further includes a charging detection module 140 connected to the battery module 100 and the central processing module 130 for detecting whether the battery module 100 is fully charged and the wireless communication terminal 10 It Whether the external charger is unplugged. When the charging detection module 140 detects that the battery module 100 is fully charged and the external charger of the wireless communication terminal 10 is unplugged, a trigger signal is generated and sent to the central processing module 130; When the 100 is not fully charged and the external charger is unplugged, the charging detection module 140 does not operate. The voltage detection module 120 includes an offset calculation identifier including an enable state and a disable state. The enabled state represents that the battery module 100 is first fully charged and the external charger is unplugged, and the voltage offset of the battery module 100 needs to be calculated; the disabled state represents that the voltage offset of the battery module 100 has been Calculation. In the present embodiment, the enabled state is represented by "0", and the disabled state is represented by "1". In other embodiments of the present invention, other different numbers or letters may be used for the enabled state and the disabled state. Said.
中央處理模組130接收充電檢測模組140所發送之觸發訊號，並設置電壓偵測模組120之偏移計算標識為使能狀態。電壓偵測模組120檢測到偏移計算標識為使能狀態，則偵測電池模組100充滿電且該外部充電器被拔掉時之初始電壓，並發送該初始電壓至該中央處理模組130。中央處理模組130接收該初始電壓，根據儲存模組110儲存之電壓與剩餘電量之對應關係，計算電池模組100之電壓偏移，儲存該電壓偏移於儲存模組110中，並設置電壓偵測模組120的偏移計算標識為除能狀態，如此，僅在電池模組100第一次充滿電時才需計算電壓偏移，而後續可直接利用該電壓偏移而不需要再重新計算。在本實施方式中，該初始電壓為電壓偵測模組120在電池模組100剛充滿電且外部充電器拔掉時偵測到的電壓，而此時電池模組100 剛滿電，剩餘電量為100%，經由查詢儲存模組110儲存之電池模組100之電壓與剩餘電量之對應關係，獲知電池模組100電量為100%時之實際電壓，然後將剩餘電量為100%時偵測到的電壓與實際電壓相減，即可計算出電池模組100之電壓偏移。 The central processing module 130 receives the trigger signal sent by the charging detection module 140, and sets the offset calculation flag of the voltage detecting module 120 to an enabled state. When the voltage detection module 120 detects that the offset calculation flag is enabled, detecting the initial voltage when the battery module 100 is fully charged and the external charger is unplugged, and transmitting the initial voltage to the central processing module. 130. The central processing module 130 receives the initial voltage, calculates a voltage offset of the battery module 100 according to the corresponding relationship between the voltage stored in the storage module 110 and the remaining power, stores the voltage offset in the storage module 110, and sets the voltage. The offset calculation flag of the detection module 120 is a disable state. Therefore, the voltage offset needs to be calculated only when the battery module 100 is fully charged for the first time, and the voltage offset can be directly utilized later without re-re- Calculation. In this embodiment, the initial voltage is the voltage detected by the voltage detecting module 120 when the battery module 100 is just fully charged and the external charger is unplugged, and the battery module 100 is at this time. After the power is fully charged, the remaining power is 100%. By querying the correspondence between the voltage of the battery module 100 stored in the storage module 110 and the remaining power, the actual voltage when the battery module 100 is 100% is known, and then the remaining power is When the voltage detected at 100% is subtracted from the actual voltage, the voltage offset of the battery module 100 can be calculated.
在本實施方式中，充電檢測模組140包括一充電檢測子模組1400及一充電器檢測子模組1410。其中，該充電檢測子模組1400用於檢測電池模組100是否充滿電，在本實施方式中，充電檢測子模組1400經由檢測電池模組100之電壓是否達到最高值來確定電池模組100是否充滿電，若電池模組100之電壓達到最高值，則代表電池模組100充滿電。充電器檢測子模組1410用於檢測外部充電器是否被拔掉。 In the embodiment, the charging detection module 140 includes a charging detection sub-module 1400 and a charger detection sub-module 1410. The charging detection sub-module 1400 is configured to detect whether the battery module 100 is fully charged. In the embodiment, the charging detection sub-module 1400 determines the battery module 100 by detecting whether the voltage of the battery module 100 reaches the highest value. Whether the battery module 100 is fully charged, if the voltage of the battery module 100 reaches the highest value, it means that the battery module 100 is fully charged. The charger detection sub-module 1410 is for detecting whether the external charger is unplugged.
在本實施方式中，無線通訊終端10還包括一顯示模組150，與中央處理模組130相連，用於顯示中央處理模組130獲取之電池模組100之實際剩餘電量。無線通訊終端10可為行動電話或便攜式電腦。 In the embodiment, the wireless communication terminal 10 further includes a display module 150 connected to the central processing module 130 for displaying the actual remaining power of the battery module 100 obtained by the central processing module 130. The wireless communication terminal 10 can be a mobile phone or a portable computer.
圖2所示為本發明一實施方式中無線通訊終端10之電池電量測量方法之流程圖。首先，在步驟S200，電壓偵測模組120偵測電池模組100的電壓，並發送該偵測電壓至中央處理模組130。在步驟S202，中央處理模組130接收該偵測電壓，並根據儲存模組110儲存之電壓偏移，計算電池模組100之實際電壓。在步驟S204，中央處理模組130根據該實際電壓，查詢儲存模組110所儲存之電池模組100之電壓與剩餘電量之對應關係，獲取電池模組100之 實際剩餘電量。在步驟S206，中央處理模組130發送實際剩餘電量至顯示模組150，顯示模組150顯示該實際剩餘電量。 FIG. 2 is a flow chart showing a method for measuring battery power of the wireless communication terminal 10 according to an embodiment of the present invention. First, in step S200, the voltage detecting module 120 detects the voltage of the battery module 100 and transmits the detected voltage to the central processing module 130. In step S202, the central processing module 130 receives the detected voltage, and calculates the actual voltage of the battery module 100 according to the voltage offset stored by the storage module 110. In step S204, the central processing module 130 queries the correspondence between the voltage of the battery module 100 stored in the storage module 110 and the remaining power according to the actual voltage, and acquires the battery module 100. Actual remaining battery power. In step S206, the central processing module 130 sends the actual remaining power to the display module 150, and the display module 150 displays the actual remaining power.
圖3所示為本發明另一實施方式中無線通訊終端10之電池電量測量方法之電壓偏移計算方法之流程圖。首先，在步驟S300，無線通訊終端10之電池模組100第一次藉由外部充電器充電。在步驟S302，充電檢測模組140之充電檢測子模組1400檢測電池模組100是否充滿電。若充電檢測子模組1400檢測到電池模組100未充滿電，則回到步驟S300繼續充電。若充電檢測子模組1400檢測到電池模組100充滿電，在步驟S304，充電檢測模組140之充電器檢測子模組1410檢測外部充電器是否被拔掉。若外部充電器未被拔掉，則回到步驟S304繼續檢測。若充電器檢測子模組1410檢測到外部充電器已被拔掉，在步驟S306，充電檢測模組140產生並發送一觸發訊號至中央處理模組130。在步驟S308，中央處理模組130接收該觸發訊號，設置電壓偵測模組120之偏移計算標識為使能狀態。 FIG. 3 is a flow chart showing a method for calculating a voltage offset of a battery power measuring method of the wireless communication terminal 10 according to another embodiment of the present invention. First, in step S300, the battery module 100 of the wireless communication terminal 10 is charged for the first time by an external charger. In step S302, the charging detection sub-module 1400 of the charging detection module 140 detects whether the battery module 100 is fully charged. If the charging detection sub-module 1400 detects that the battery module 100 is not fully charged, it returns to step S300 to continue charging. If the charging detection sub-module 1400 detects that the battery module 100 is fully charged, in step S304, the charger detection sub-module 1410 of the charging detection module 140 detects whether the external charger is unplugged. If the external charger has not been unplugged, it returns to step S304 to continue the detection. If the charger detection sub-module 1410 detects that the external charger has been unplugged, the charging detection module 140 generates and transmits a trigger signal to the central processing module 130 in step S306. In step S308, the central processing module 130 receives the trigger signal, and sets the offset calculation flag of the voltage detection module 120 to an enabled state.
在步驟S310，電壓偵測模組120根據該偏移計算標識之使能狀態，偵測電池模組100充滿電且外部充電器被拔掉時的初始電壓，並發送初始電壓至中央處理模組130。在步驟S312，中央處理模組130接收該初始電壓，根據儲存模組110儲存之電池模組100之電壓與剩餘電量之對應關係，計算電池模組100的電壓偏移，儲存該電壓偏移於該儲存模組110中，並設置該電壓偵測模組120之偏移計算標識為除能狀態。 In step S310, the voltage detecting module 120 calculates the enable state of the identifier according to the offset, detects the initial voltage when the battery module 100 is fully charged and the external charger is unplugged, and sends the initial voltage to the central processing module. 130. In step S312, the central processing module 130 receives the initial voltage, and calculates a voltage offset of the battery module 100 according to the correspondence between the voltage of the battery module 100 stored in the storage module 110 and the remaining power, and stores the voltage offset. In the storage module 110, the offset calculation identifier of the voltage detection module 120 is set to be a disabled state.
本發明之無線通訊終端10及其電池電量測量方法，在電池模組100第一次充滿電且外部充電器被拔掉時，測量一偵測電壓，經由查詢實際電壓與剩餘電量的對應關係，得到此時之實際電壓，從而得到電壓偏移。而後續，測得一偵測電壓後，可根據電壓偏移計算出實際電壓，從而可精確的獲知此時之剩餘電量，避免誤導用戶。 The wireless communication terminal 10 of the present invention and the battery power measuring method thereof, when the battery module 100 is fully charged for the first time and the external charger is unplugged, measures a detected voltage, and queries the correspondence between the actual voltage and the remaining power. The actual voltage at this time is obtained, resulting in a voltage offset. After the detection of a detected voltage, the actual voltage can be calculated according to the voltage offset, so that the remaining power at this time can be accurately learned to avoid misleading the user.
10‧‧‧無線通訊終端 10‧‧‧Wireless communication terminal
100‧‧‧電池模組 100‧‧‧ battery module
110‧‧‧儲存模組 110‧‧‧Storage module
120‧‧‧電壓偵測模組 120‧‧‧Voltage detection module
130‧‧‧中央處理模組 130‧‧‧Central Processing Module
140‧‧‧充電檢測模組 140‧‧‧Charge detection module
1400‧‧‧充電檢測子模組 1400‧‧‧Charge detection sub-module
1410‧‧‧充電器檢測子模組 1410‧‧‧Charger detection sub-module
150‧‧‧顯示模組 150‧‧‧ display module
圖1為本發明一實施方式中無線通訊終端之模組圖。 1 is a block diagram of a wireless communication terminal according to an embodiment of the present invention.
圖2為本發明一實施方式中電池電量的測量方法之流程圖。 2 is a flow chart of a method for measuring a battery power according to an embodiment of the present invention.
圖3為本發明一實施方式中電池電量的測量方法之電壓偏移之計算方法之流程圖。 3 is a flow chart of a method for calculating a voltage offset of a method for measuring a battery power according to an embodiment of the present invention.
10‧‧‧無線通訊終端 10‧‧‧Wireless communication terminal
100‧‧‧電池模組 100‧‧‧ battery module
110‧‧‧儲存模組 110‧‧‧Storage module
120‧‧‧電壓偵測模組 120‧‧‧Voltage detection module
130‧‧‧中央處理模組 130‧‧‧Central Processing Module
140‧‧‧充電檢測模組 140‧‧‧Charge detection module
1400‧‧‧充電檢測子模組 1400‧‧‧Charge detection sub-module
1410‧‧‧充電器檢測子模組 1410‧‧‧Charger detection sub-module
150‧‧‧顯示模組 150‧‧‧ display module
Claims (11)
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| TWI474532B (en) * | 2013-08-12 | 2015-02-21 | 凹凸科技國際股份有限公司 | Battery system and controller and control method thereof |
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| US6194870B1 (en) * | 1998-10-09 | 2001-02-27 | Samsung Electronics Co., Ltd. | System for automatically indicating that battery should be replaced and method thereof |
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| TW536845B (en) * | 2002-01-23 | 2003-06-11 | Chicony Electronics Co Ltd | Charge amount detection device of battery and method thereof |
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| US6194870B1 (en) * | 1998-10-09 | 2001-02-27 | Samsung Electronics Co., Ltd. | System for automatically indicating that battery should be replaced and method thereof |
| US6405062B1 (en) * | 1999-09-30 | 2002-06-11 | Sanyo Electric Co., Ltd. | Battery level indicator for a telephone set |
| TW536845B (en) * | 2002-01-23 | 2003-06-11 | Chicony Electronics Co Ltd | Charge amount detection device of battery and method thereof |
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| TWI474532B (en) * | 2013-08-12 | 2015-02-21 | 凹凸科技國際股份有限公司 | Battery system and controller and control method thereof |
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