WO2012003736A1 - 一种带电池数据卡的开关装置及其节电的实现方法 - Google Patents

一种带电池数据卡的开关装置及其节电的实现方法 Download PDF

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Publication number
WO2012003736A1
WO2012003736A1 PCT/CN2011/073137 CN2011073137W WO2012003736A1 WO 2012003736 A1 WO2012003736 A1 WO 2012003736A1 CN 2011073137 W CN2011073137 W CN 2011073137W WO 2012003736 A1 WO2012003736 A1 WO 2012003736A1
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Prior art keywords
battery
data card
connection
module
computer
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PCT/CN2011/073137
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English (en)
French (fr)
Inventor
杨超杰
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to ES11803090.7T priority Critical patent/ES2559118T3/es
Priority to EP11803090.7A priority patent/EP2581855B1/en
Priority to PL11803090T priority patent/PL2581855T3/pl
Priority to US13/519,448 priority patent/US8826044B2/en
Publication of WO2012003736A1 publication Critical patent/WO2012003736A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3212—Monitoring battery levels, e.g. power saving mode being initiated when battery voltage goes below a certain level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a power saving technology in the field of communications, and more particularly to a switching device with a battery data card and a method for implementing the same. Background technique
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • LTE Long Term Evolution
  • USB universal serial bus
  • the USB interface not only serves as a path for the data card to transmit data, but also serves to power the data card.
  • the USB interface can provide no more than 500mA.
  • the current provided by the USB interface can only meet the power requirements of single-mode and partial multi-mode data cards, but it cannot meet the power requirements of other multi-mode data cards, especially the power requirements of these multi-mode data cards when transmitting data. Therefore, in some implementations of data card functions, some provide power supplementation for the data card by setting a large storage capacitor in the data card, and some provide a battery in the data card to supplement the power of the data card.
  • the process of loading and unloading the data card is similar to that of the mobile terminal.
  • a button is needed.
  • the switch is used to implement the up and down operation of the data card.
  • the setting of the button switch not only affects the appearance of the data card, but also makes the operation of the user not simple enough.
  • the current data card with battery is powered off, since the battery is still connected to the data card function module, there is still a certain static consumption of the battery power. If the data card is not used for a long time, the battery power will be gradually exhausted, shortening the battery life. Or damage the battery. Summary of the invention
  • the main object of the present invention is to provide a switch device with a battery data card and a method for implementing the same, which can save the switch button of the existing data card, prevent static consumption of the battery power, and save the battery. Electricity.
  • the present invention provides a switch device with a battery data card, comprising: a connection detection module and a battery connection enable switch module inside the original battery power supply module;
  • the connection detecting module is configured to detect whether the data card is connected to the computer, and when the two are connected, the battery connection is controlled to enable the shutdown module to turn on the battery circuit of the data card; when the two are disconnected, the control battery connection is enabled.
  • the shutdown module disconnects the battery circuit of the data card;
  • the battery connection enables a shutdown module for turning the battery circuit of the data card on or off under the control of the connection detection module.
  • connection detecting module detects whether the data card is connected to the computer, so that: the connection detecting module determines whether the data card is effectively connected to the computer by detecting whether the voltage of the computer interface is valid.
  • the connection detection module controls the battery connection to enable the shutdown module to turn on or off the battery circuit of the data card, which is:
  • the connection detection module regulates the supply voltage of the computer interface to turn on or off the control signal, and turns on or off the control signal to control the battery connection to enable the shutdown module to turn the battery circuit of the data card on or off.
  • the battery connection enable shutdown module is turned on or off under the control of the connection detection module Open the battery circuit of the data card, which is:
  • the battery connection enables the shutdown module to turn on or off the battery loop of the data card when it receives the on or off control signal from the connection detection module.
  • the battery connection enabling shutdown module is implemented by a MOS transistor or a transistor.
  • the internal resistance of the battery connection enabling shutdown module is not more than one hundred milliohms.
  • the invention also provides a power saving method with a battery data card, the method comprising: detecting whether the data card is connected to the computer, determining that the data circuit is connected to the computer when the data card is connected to the computer; determining the data card and the computer When disconnected, the battery circuit of the control data card is disconnected.
  • the method for detecting whether the data card is connected to the computer is:
  • the connection detection module determines whether the data card is effectively connected to the computer by detecting whether the voltage of the computer interface is valid. If the detected computer interface voltage signal is high, it indicates that the two are connected; if the detected computer interface voltage signal is A low level indicates that the two are not connected at this time.
  • the method for controlling the battery circuit of the data card to be turned on or off is:
  • connection detection module When the connection detection module detects that the data card is connected or disconnected from the computer, the power supply voltage of the computer interface is adjusted to turn on or off the control signal, and the battery connection is controlled by the on or off control signal to enable the shutdown module to be turned on or Disconnect the battery circuit of the data card.
  • the battery connection enabling shutdown module is implemented by a MOS transistor or a transistor.
  • the invention provides a switch device with a battery data card and a method for implementing the same, and the connection detection module detects whether the data card is connected to the computer, and determines that the data connection is connected to the computer, and controls the battery connection to enable the shutdown module to switch on the data card. Battery loop; When determining that the data card is disconnected from the computer, controlling the battery connection enables the shutdown module to disconnect the battery loop of the data card.
  • the invention realizes the combination of the shutdown module by connecting the detection module and the battery connection, and can realize that the data card is not used. When the battery circuit in the data card is cut off in time, the static consumption of the battery power is prevented, and the battery power is saved.
  • the data card battery circuit of the present invention has an internal module for turning on and off, and does not need manual operation, so the original switch button is not needed, which simplifies the design of the data card and is convenient for the user.
  • FIG. 1 is a schematic structural view of a data card with a battery according to the present invention.
  • connection detecting module and a battery connection enabling shutdown module according to an embodiment of the present invention
  • FIG. 3 is a schematic flow chart showing the implementation of a power saving method with a battery data card switch device according to the present invention. detailed description
  • the basic idea of the invention is: detecting whether the data card is connected to the computer, determining that the battery circuit of the data card is connected when the data card is connected to the computer; and determining that the battery circuit of the data card is disconnected when the data card is disconnected from the computer.
  • the data card includes an existing computer interface, a data card function module, and a battery power supply module.
  • the method further includes: a connection detection module and a battery connection enable switch. a switching device composed of a broken module; wherein
  • the connection detecting module is configured to detect whether the data card is connected to the computer, and when the two are connected, the battery connection is controlled to enable the shutdown module to turn on the battery circuit of the data card; when the two are disconnected, the control battery connection is enabled. Shut down the module to disconnect the battery circuit of the data card; specific:
  • the connection detection module determines whether the data card is effectively connected to the computer by detecting whether the voltage of the computer interface is valid, and determines that the power supply voltage of the computer interface is adjusted to be a control signal when the two are connected, and the battery connection is enabled to enable the shutdown module to turn on the data.
  • Card battery loop determine both When disconnected, the power supply voltage of the computer interface is adjusted to a disconnection control signal, and the battery connection is controlled to enable the shutdown module to disconnect the battery circuit of the data card.
  • the conditioning circuit for regulating the control signal of the connection detecting module may be implemented by a voltage dividing resistor;
  • the control signal obtained by the conditioning is a voltage signal obtained by dividing the power supply voltage of the computer interface by a resistor, correspondingly
  • the on-control signal is a voltage signal that satisfies the normal operation of the battery connection enable shutdown module;
  • the disconnection control signal is a voltage signal that cannot meet the normal operation of the battery connection enable shutdown module, that is, It is said that the voltage signal obtained by the conditioning is smaller than the voltage signal of the battery connection enabling the shutdown module to work normally.
  • the battery connection enables a shutdown module for turning on or off the battery circuit of the data card under the control of the connection detection module;
  • the battery connection enable shutdown module When the battery connection enable shutdown module receives the connection control signal obtained by the connection detection module conditioning, the battery circuit of the data card is turned on; when the battery connection enable shutdown module receives the disconnection control signal obtained by the connection detection module conditioning When disconnecting the battery card from the data card.
  • the battery connection enable shutdown module can be implemented by a MOS transistor or transistor.
  • the internal resistance of the battery connection enabling the shutdown module to turn on the data circuit of the data card is very low, and a negligible effect should be achieved to minimize the power consumption of the battery connection to enable the shutdown module.
  • the internal resistance of a commonly used MOS tube is from several tens of milliohms to two or three hundred milliohms. Then, for the present invention, an internal resistance of five or sixty milliohms or less is not more than one hundred milliohms.
  • the MOS tube can be.
  • the battery connection enabling module is part of a battery circuit, and the battery circuit is part of a battery power supply module.
  • the battery power supply module is only after the battery connection enables the shutdown module to connect to the battery circuit. Provide power to the data card function module. Only the relationship between the battery connection enable module and the battery power supply module is shown in Fig. 1, and the specific structure of the battery circuit in the battery power supply module is not given. The following briefly describes the functions of the existing computer interface, data card function module and battery power supply module;
  • the computer interface is configured to connect a data card and a computer, and the computer interface includes but is not limited to a USB interface;
  • the data card function module is configured to implement a basic function of the data card, and perform data interaction with the computer through a computer interface, and the supported communication system includes, but is not limited to, Wideband Code Division Multiple Access (WCDMA), time-division synchronization code One or more of data cards of multiple access (TD-CDMA), Worldwide Interoperability for Microwave Access (WiMAX), GSM, General Packet Radio Service (GPRS), or LTE;
  • WCDMA Wideband Code Division Multiple Access
  • TD-CDMA time-division synchronization code
  • WiMAX Worldwide Interoperability for Microwave Access
  • GSM Global System for Mobile communications
  • GPRS General Packet Radio Service
  • the battery powered module is used for power management and charging the battery after the battery connection enables the shutdown module to turn on the battery circuit.
  • the power supply of the data card comes first from the computer interface.
  • the computer interface has sufficient current, it supplies power to the data card function module and charges the battery; when the computer interface current cannot meet the data card function at the same time
  • the module is powered and the battery is charged, the current demand of the data card function module is first ensured, and the remaining current is charged for the battery.
  • the computer interface current cannot meet the current required by the data card function module, the insufficient current is supplemented by the battery.
  • the above functions ensure that the computer interface has priority over the battery to the data card, that is, when the data card requires insufficient current when transmitting data, the battery provides the necessary supplement for the data card.
  • connection detecting module and the battery connection enabling shutdown module of the present invention will be described below with reference to specific embodiments.
  • the 200 and 201 constitute a connection detecting module, and the 202, 203 and 204 are formed.
  • the battery connection enables the shutdown module.
  • the 200 and 201 are two resistors, and according to the voltage of the external computer interface, different resistance values may be selected for voltage division, and the voltage is adjusted to meet the voltage range of the battery connection enable module. Design is easy for the relevant technical staff, no longer here Detailed.
  • the 202 is a PMOS tube.
  • the voltage of the S terminal of the PMOS transistor 202 is the voltage of the computer interface, and the voltage of the S terminal is divided by the two resistors 200 and 201 and then supplied to the G terminal.
  • the voltage of the G terminal is less than the voltage of the S terminal.
  • the PMOS transistor 202 is turned on. After the PMOS transistor 202 is turned on, the voltage at the D terminal is close to the voltage of the computer interface, and a voltage difference is generated across the resistor 203.
  • the 204 is an NMOS transistor, and the G terminal voltage is higher than the S terminal voltage, and the ground of the single board is connected with the negative end of the battery, and the battery and the data card function module form a closed loop, and the battery to data card function module is realized.
  • the S terminal and the G terminal of the PMOS transistor 202 are both low, so that the PMOS transistor 202 cannot be turned on, and the NMOS transistor 204 cannot be turned on, and the battery is cut off. Return path.
  • FIG. 3 is a schematic diagram of a power saving method of a battery data card switch device according to the present invention. As shown in FIG. 3, the implementation steps of the method are as follows:
  • Step 301 detecting whether the data card is connected to the computer, if the two are connected, step 302 is performed; if the two are disconnected, step 303 is performed;
  • connection detection module in the data card determines whether the data card is effectively connected to the computer by detecting whether the voltage of the computer interface is valid, that is, if the detected computer interface voltage signal is at a high level 1, it indicates that the two are connected at this time. Then, step 302 is performed; if the detected computer interface voltage signal is low level 0, it indicates that the two are not connected at this time, and step 303 is performed.
  • the connection detection module can detect the voltage signal of the USB interface 5V, indicating that the data card is connected to the computer at this time; when the data card is pulled out from the computer.
  • the connection detection module cannot detect the voltage signal of the USB interface, that is, the detected voltage signal is 0V, it indicates that the data card is not connected to the computer at this time.
  • Step 302 Control the battery loop of the data card is turned on, and then perform step 304;
  • connection detection module detects that the data card is connected to the computer
  • the computer interface The power supply voltage is adjusted to turn on the control signal, and the battery connection is controlled to enable the shutdown module to turn on the battery circuit of the data card, thereby realizing power-on of the data card function module, and then performing step 304.
  • the battery connection enables the shutdown module to be disconnected as a switch, one end of the switch is connected to the negative end of the battery, the other end is connected to the ground of the board, and the closing and opening of the switch is adjusted by the connection detection module.
  • the control signal or the control signal is turned off to control, and the battery power supply circuit is turned on when the switch is closed.
  • Step 303 The battery circuit of the control data card is disconnected, and then step 304 is performed;
  • connection detection module detects that the data card is disconnected from the computer
  • the power supply voltage of the computer interface is adjusted to a disconnection control signal
  • the battery connection is enabled to enable the shutdown module to disconnect the battery circuit of the data card, thereby realizing the data card function.
  • the module is powered on, and then step 304 is performed.
  • Step 304 The power saving process with the battery data card ends.

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Abstract

本发明公开了一种带电池数据卡的开关装置，包括：连接检测模块和原有电池供电模块内部的电池连接使能关断模块。本发明还同时公开了一种带电池数据卡的节电方法，运用该数据卡的开关装置和相应的节电方法，可省掉现有数据卡上电的开关按钮，且可防止电池电量的静态消耗，节省电池电量。

Description

一种带电池数据卡的开关装置及其节电的实现方法 技术领域
本发明涉及通信领域中的节电技术， 尤其涉及一种带电池数据卡的开 关装置及其节电的实现方法。 背景技术
随着通信技术的发展， 无线通信技术已经从全球移动通讯系统（ GSM ) 或码分多址（ CDMA )等技术沿其各自的方式向长期演进（ LTE )技术发展。 为了适应各种通信制式的市场需求， 同一张数据卡已不再只适用于一种通 信制式， 即目前市场上已出现集多种通信制式于一身的多模数据卡。 随着 数据卡功能的增强以及传输速率的提高， 对数据卡自身功率的要求也在提 高， 数据卡对功率的需求主要集中在两个工作状态， 分别为待机状态和传 送数据状态。数据卡处于待机状态时，对应的瞬态电流约为 5mA至 10 mA; 在传输数据时需要的功率较大， 对应的瞬态电流约为 1.5A至 2A。
现有的数据卡大都通过通用串行总线（ USB )接口与计算机相连， USB 接口不仅作为数据卡传输数据的通路， 还用于为数据卡供电。根据 USB 2.0 协议标准和规范， USB接口能够提供的电流不应超过 500mA。 USB接口所 提供的电流仅能满足单模和部分多模数据卡的功率需求， 但不能满足其它 一些多模数据卡的功率需求， 尤其不能满足这些多模数据卡在传输数据时 的功率需求。 因此， 在有些数据卡功能的实现中， 有的通过在数据卡中设 置大储能电容为数据卡给予功率补充， 有的则在数据卡中设置电池来为数 据卡给予功率补充。
由于数据卡是在移动终端的通信制式基础上发展起来的， 因此数据卡 的上、 下电过程和移动终端类似， 数据卡内增设电池后， 则需要一个按钮 开关来实现数据卡的上、 下电操作， 按钮开关的设置不仅影响数据卡的外 观， 而且也使用户的操作不够简便。 另外， 目前带电池的数据卡下电后， 由于电池仍与数据卡功能模块连接， 因此对电池电量还有一定的静态消耗， 若数据卡长期不用， 电池电量会被逐渐耗尽， 缩短电池寿命或损坏电池。 发明内容
有鉴于此， 本发明的主要目的在于提供一种带电池数据卡的开关装置 及其节电的实现方法， 可省掉现有数据卡的开关按钮， 且可防止电池电量 的静态消耗， 节省电池电量。
为达到上述目的， 本发明的技术方案是这样实现的：
本发明提供了一种带电池数据卡的开关装置， 包括： 连接检测模块和 原有电池供电模块内部的电池连接使能关断模块； 其中，
所述连接检测模块， 用于检测数据卡是否与计算机相连， 确定两者相 连时， 控制电池连接使能关断模块接通数据卡的电池回路； 确定两者断开 时， 控制电池连接使能关断模块断开数据卡的电池回路；
所述电池连接使能关断模块， 用于在连接检测模块的控制下接通或断 开数据卡的电池回路。
其中， 所述连接检测模块检测数据卡是否与计算机相连， 为： 连接检 测模块通过检测计算机接口电压是否有效来判断数据卡是否与计算机有效 连接。
其中， 所述连接检测模块控制电池连接使能关断模块接通或断开数据 卡的电池回路， 为：
连接检测模块将计算机接口的供电电压调理成接通或断开控制信号， 接通或断开控制信号控制电池连接使能关断模块接通或断开数据卡的电池 回路。
其中， 所述电池连接使能关断模块在连接检测模块的控制下接通或断 开数据卡的电池回路， 为：
电池连接使能关断模块收到连接检测模块调理所得的接通或断开控制 信号时， 接通或断开数据卡的电池回路。
其中， 所述电池连接使能关断模块由 MOS管或晶体管来实现。
其中， 所述电池回路接通后， 所述电池连接使能关断模块的内阻不大 于一百毫欧姆。
本发明还提供了一种带电池数据卡的节电方法， 该方法包括： 检测数据卡是否与计算机相连， 确定数据卡与计算机相连时， 控制数 据卡的电池回路接通； 确定数据卡与计算机断开时， 控制数据卡的电池回 路断开。
其中， 所述检测数据卡是否与计算机相连的方法， 为：
连接检测模块通过检测计算机接口电压是否有效来判断数据卡是否与 计算机有效连接， 如果检测到的计算机接口电压信号为高电平， 则表明此 时两者相连； 如果检测到的计算机接口电压信号为低电平， 则表明此时两 者未连接。
其中， 所述控制数据卡的电池回路接通或断开的方法， 为：
连接检测模块检测到数据卡与计算机相连或断开时， 将计算机接口的 供电电压调理成接通或断开控制信号， 由接通或断开控制信号控制电池连 接使能关断模块接通或断开数据卡的电池回路。
其中， 所述电池连接使能关断模块由 MOS管或晶体管来实现。
本发明提供的带电池数据卡的开关装置及其节电的实现方法， 连接检 测模块检测数据卡是否与计算机相连， 确定数据卡与计算机相连时， 控制 电池连接使能关断模块接通数据卡的电池回路； 确定数据卡与计算机断开 时， 控制电池连接使能关断模块断开数据卡的电池回路。 本发明通过连接 检测模块和电池连接使能关断模块的结合使用， 可实现在数据卡不被使用 时能及时切断数据卡内的电池回路， 防止电池电量的静态消耗， 节省电池 电量。
此外， 本发明所述数据卡电池回路的接通与断开均有内部模块实现， 不需人工操作， 因此不需设置原有的开关按钮， 可简化数据卡的外观设计， 方便用户使用。 附图说明
图 1为本发明带电池数据卡的结构示意图；
图 2为本发明实施例所述连接检测模块和电池连接使能关断模块的内 部结构示意图；
图 3为本发明带电池数据卡开关装置的节电方法实现流程示意图。 具体实施方式
本发明的基本思想是： 检测数据卡是否与计算机相连， 确定数据卡与 计算机相连时， 控制数据卡的电池回路接通； 确定数据卡与计算机断开时， 控制数据卡的电池回路断开。
下面结合附图及具体实施例对本发明作进一步详细说明。
图 1为本发明带电池数据卡的结构示意图， 如图 1所示， 该数据卡包 括已有的计算机接口、 数据卡功能模块和电池供电模块； 还包括： 连接检 测模块和电池连接使能关断模块共同组成的开关装置； 其中，
所述连接检测模块， 用于检测数据卡是否与计算机相连， 确定两者相 连时， 控制电池连接使能关断模块接通数据卡的电池回路； 确定两者断开 时， 控制电池连接使能关断模块断开数据卡的电池回路； 具体的：
连接检测模块通过检测计算机接口电压是否有效来判断数据卡是否与 计算机有效连接， 确定两者相连时， 将计算机接口的供电电压调理成接通 控制信号， 控制电池连接使能关断模块接通数据卡的电池回路； 确定两者 断开时， 将计算机接口的供电电压调理成断开控制信号， 控制电池连接使 能关断模块断开数据卡的电池回路。
在实际应用中， 所述连接检测模块调理控制信号的调理电路可由分压 电阻来实现； 所述调理所得的控制信号， 即为计算机接口的供电电压被电 阻分压后所得的电压信号， 相应的， 所述接通控制信号， 即为满足电池连 接使能关断模块正常工作的电压信号； 所述断开控制信号， 即为不能满足 电池连接使能关断模块正常工作的电压信号， 也就是说， 调理所得的电压 信号小于电池连接使能关断模块正常工作的电压信号。
所述电池连接使能关断模块， 用于在连接检测模块的控制下接通或断 开数据卡的电池回路； 具体的：
当电池连接使能关断模块收到连接检测模块调理所得的接通控制信号 时， 接通数据卡的电池回路； 当电池连接使能关断模块收到连接检测模块 调理所得的断开控制信号时， 断开数据卡的电池回路。
在实际应用中，所述电池连接使能关断模块可由 MOS管或晶体管来实 现。
这里， 要求所述电池连接使能关断模块接通数据卡的电池回路后的内 阻非常低， 应达到可忽略不计的效果， 以尽可能减小电池连接使能关断模 块的功率消耗。 以 MOS管为例，常用的 MOS管的内阻从几十毫欧姆到二、 三百毫欧姆， 那么， 针对本发明则可选用内阻为五、 六十毫欧姆等不大于 一百毫欧姆的 MOS管即可。
本发明中， 所述电池连接使能关断模块为电池回路的一部分， 所述电 池回路又为电池供电模块中的一部分， 只有电池连接使能关断模块接通电 池回路后， 电池供电模块才为数据卡功能模块提供电量。 图 1 中只给出电 池连接使能关断模块和电池供电模块两者间的关系， 未给出电池供电模块 中电池回路的具体结构。 下面再对已有的计算机接口、 数据卡功能模块和电池供电模块的功能 进行简单描述； 其中，
所述计算机接口， 用于连接数据卡和计算机， 该计算机接口包括但不 限于 USB接口；
所述数据卡功能模块， 用于实现数据卡的基本功能， 通过计算机接口 进行与计算机间的数据交互， 其支持的通信制式包括但不限于宽带码分多 址 （WCDMA )、 时分的同步码分多址 （TD-CDMA )、 全球微波互联接入 ( WiMAX )、 GSM、 通用分组无线服务（GPRS )或 LTE等制式的数据卡 中的一种或多种；
所述电池供电模块， 用于电源管理和在电池连接使能关断模块接通电 池回路后， 为电池充电。 根据数据卡需要与计算机连接应用的特点， 数据 卡的供电首先来自计算机接口， 当计算机接口有充足电流时对数据卡功能 模块供电， 并为电池充电； 当计算机接口电流不能同时满足对数据卡功能 模块供电和为电池充电时， 首先保证数据卡功能模块对电流的需求， 剩余 的电流再为电池充电； 当计算机接口电流不能满足数据卡功能模块所需的 电流时， 不足的电流由电池来补充， 上述功能可保证计算机接口比电池对 数据卡的供电具有优先权， 即当数据卡在传输数据时所需电流不够时， 由 电池为数据卡提供必要的补充。
这里， 所述为电池充电的过程为现有技术， 此处不再详述。
下面结合具体实施例对本发明所述连接检测模块和电池连接使能关断 模块的内部结构进行描述， 如图 2所示， 所述 200和 201构成了连接检测 模块， 所述 202、 203和 204构成了电池连接使能关断模块。
其中， 所述 200和 201为两个电阻， 根据外接计算机接口电压的不同， 可选用不同的阻值进行分压， 调理成满足电池连接使能关断模块的工作电 压区间范围内的电压， 该设计对相关技术人员来说很容易实现， 此处不再 详述。
所述 202为 PMOS管， 当数据卡插入计算机接口时， PMOS管 202的 S端电压为计算机接口电压， S端电压经过两电阻 200和 201分压后供给 G 端， G端电压小于 S端电压， PMOS管 202则导通， PMOS管 202导通后， 其 D端电压则接近计算机接口电压， 并在电阻 203上产生压差。 所述 204 为 NMOS管， 其 G端电压大于 S端电压时导通， 单板的地和电池的负端连 接上， 电池和数据卡功能模块形成了闭合回路， 实现了电池对数据卡功能 模块的上电； 当数据卡从计算机上拔出时， PMOS管 202的 S端和 G端都 为低电平， 使得 PMOS管 202不能导通， NMOS管 204也就不能导通， 切 断了电池的回流路径。
图 3 为本发明带电池数据卡开关装置的节电方法实现流程示意图， 如 图 3所示， 该方法的实现步骤如下：
步骤 301 : 检测数据卡是否与计算机相连， 如果两者相连， 则执行步骤 302; 如果两者断开， 则执行步骤 303;
具体为： 数据卡内的连接检测模块通过检测计算机接口电压是否有效 来判断数据卡是否与计算机有效连接， 即： 如果检测到的计算机接口电压 信号为高电平 1 , 则表明此时两者相连， 则执行步骤 302; 如果检测到的计 算机接口电压信号为低电平 0, 则表明此时两者未连接， 则执行步骤 303。
例如： 假设数据卡通过 USB接口与计算机相连， 当数据卡插入计算机 时， 连接检测模块能检测到 USB接口 5V的电压信号， 则表明此时数据卡 与计算机相连；当数据卡从计算机中拔出时，连接检测模块不能检测到 USB 接口的电压信号， 即检测到的电压信号为 0V, 则表明此时数据卡未与计算 机相连。
步骤 302: 控制数据卡的电池回路接通， 之后执行步骤 304;
具体为： 连接检测模块检测到数据卡与计算机相连时， 将计算机接口 的供电电压调理成接通控制信号， 控制电池连接使能关断模块接通数据卡 的电池回路， 实现了数据卡功能模块的上电， 之后执行步骤 304。
这里， 所述电池连接使能关断模块断当于一个开关， 该开关的一端接 电池的负端， 另一端接单板的地， 开关的闭合与断开由连接检测模块调理 成的接通控制信号或断开控制信号来控制， 当开关闭合时电池供电回路接 通。
步骤 303: 控制数据卡的电池回路断开， 之后执行步骤 304;
具体为： 连接检测模块检测到数据卡与计算机断开时， 将计算机接口 的供电电压调理成断开控制信号， 控制电池连接使能关断模块断开数据卡 的电池回路， 实现了数据卡功能模块的上电， 之后执行步骤 304。
步骤 304: 带电池数据卡的节电过程结束。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围， 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进 等， 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种带电池数据卡的开关装置， 其特征在于， 包括： 连接检测模块 和原有电池供电模块内部的电池连接使能关断模块； 其中，
所述连接检测模块， 用于检测数据卡是否与计算机相连， 确定两者相 连时， 控制电池连接使能关断模块接通数据卡的电池回路； 确定两者断开 时， 控制电池连接使能关断模块断开数据卡的电池回路；
所述电池连接使能关断模块， 用于在连接检测模块的控制下接通或断 开数据卡的电池回路。
2、 根据权利要求 1所述的带电池数据卡的开关装置， 其特征在于， 所 述连接检测模块检测数据卡是否与计算机相连， 为：
连接检测模块通过检测计算机接口电压是否有效， 来判断数据卡是否 与计算机有效连接。
3、根据权利要求 1或 2所述的带电池数据卡的开关装置，其特征在于， 所述连接检测模块控制电池连接使能关断模块接通或断开数据卡的电池回 路， 为：
连接检测模块将计算机接口的供电电压调理成接通、 或断开控制信号， 由接通、 或断开控制信号控制电池连接使能关断模块接通、 或断开数据卡 的电池回路。
4、 根据权利要求 3所述的带电池数据卡的开关装置， 其特征在于， 所 述电池连接使能关断模块在连接检测模块的控制下接通或断开数据卡的电 池回路， 为：
电池连接使能关断模块收到连接检测模块调理所得的接通、 或断开控 制信号时， 接通或断开数据卡的电池回路。
5、根据权利要求 1或 2所述的带电池数据卡的开关装置，其特征在于， 所述电池连接使能关断模块由 MOS管或晶体管来实现。
6、根据权利要求 1或 2所述的带电池数据卡的开关装置，其特征在于， 所述电池回路接通后， 所述电池连接使能关断模块的内阻不大于一百毫欧 姆。
7、 一种带电池数据卡的节电方法， 其特征在于， 该方法包括： 检测数据卡是否与计算机相连， 确定数据卡与计算机相连时， 控制数 据卡的电池回路接通； 确定数据卡与计算机断开时， 控制数据卡的电池回 路断开。
8、 根据权利要求 7所述的带电池数据卡的节电方法， 其特征在于， 所 述检测数据卡是否与计算机相连的方法， 为：
连接检测模块通过检测计算机接口电压是否有效来判断数据卡是否与 计算机有效连接， 如果检测到的计算机接口电压信号为高电平， 则表明此 时两者相连； 如果检测到的计算机接口电压信号为低电平， 则表明此时两 者未连接。
9、根据权利要求 7或 8所述的带电池数据卡的节电方法，其特征在于， 所述控制数据卡的电池回路接通或断开的方法， 为：
连接检测模块检测到数据卡与计算机相连或断开时， 将计算机接口的 供电电压调理成接通、 或断开控制信号， 由接通、 或断开控制信号控制电 池连接使能关断模块接通或断开数据卡的电池回路。
10、 根据权利要求 9所述的带电池数据卡的节电方法， 其特征在于， 所述电池连接使能关断模块由 MOS管或晶体管来实现。
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