CN101626159A - Method for preventing repeated restart of terminal device and device thereof - Google Patents

Method for preventing repeated restart of terminal device and device thereof Download PDF

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CN101626159A
CN101626159A CN200910002671A CN200910002671A CN101626159A CN 101626159 A CN101626159 A CN 101626159A CN 200910002671 A CN200910002671 A CN 200910002671A CN 200910002671 A CN200910002671 A CN 200910002671A CN 101626159 A CN101626159 A CN 101626159A
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power supply
terminal equipment
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voltage
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CN101626159B (en
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李诚铭
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Huawei Device Co Ltd
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Shenzhen Huawei Communication Technologies Co Ltd
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Abstract

本发明提供一种防止终端设备反复重启的方法和装置。所述方法包括：根据所述终端设备正常工作所需的电压值和功率值对所述电源的带负载能力进行检测；如果所述电源满足终端设备正常工作的要求，则将所述电源提供给所述终端设备使用；如果所述电源不能满足终端设备正常工作的要求，则继续检测所述电源的带负载能力。本发明实施例的方法有效避免了终端设备由于电网电压过低、阳光不足等外界条件变化时而导致的该电源带负载能力不足(即输出功率不足)而引发的产品不断重新启动的问题。

The present invention provides a method and device for preventing terminal equipment from restarting repeatedly. The method includes: detecting the load capacity of the power supply according to the voltage value and power value required for the normal operation of the terminal equipment; if the power supply meets the requirements for the normal operation of the terminal equipment, providing the power supply to The terminal equipment is used; if the power supply cannot meet the requirements for the normal operation of the terminal equipment, continue to detect the load carrying capacity of the power supply. The method of the embodiment of the present invention effectively avoids the problem of continuous restart of the terminal equipment due to insufficient load capacity of the power supply (ie insufficient output power) caused by changes in external conditions such as low grid voltage and insufficient sunlight.

Description

防止终端设备反复重启的方法与装置 Method and device for preventing terminal equipment from restarting repeatedly

技术领域 technical field

本发明关于终端产品的安全使用领域，特别关于一种防止终端设备反复重启的方法与装置。The present invention relates to the field of safe use of terminal products, in particular to a method and device for preventing repeated restarts of terminal equipment.

背景技术 Background technique

目前世界各国经济发展水平各不一样，人均占有的资源也不一样，例如印度等国家，电力资源十分有限，加上人口众多，在一天不同阶段使用电力的情况也不同，造成在不同阶段电网电压波动很大。印度标准电压为230V，实际测量时有70、80V左右的电压，在电压比较低的情况下电源的带载能力比较差，这样就有可能导致产品不断的重启而对产品造成损害。此外，当用户使用非原装电源或电源升级(例如由使用AC/DC改为太阳能电源)或使用太阳能充电器在阳光不足时都有可能造成终端设备反复重启的问题。因此，如何避免由于电源电网电压低导致电源带载能力不足而导致固定台(Fixed Wireless Phone，简称FWP)等终端反复重启的现象成了一个亟待解决的问题。At present, countries in the world have different levels of economic development, and the resources per capita are also different. For example, India and other countries have very limited power resources, coupled with a large population, the situation of using power at different stages of the day is also different, resulting in grid voltage at different stages. It fluctuates a lot. The standard voltage in India is 230V, and the actual measurement voltage is about 70 or 80V. When the voltage is relatively low, the load capacity of the power supply is relatively poor, which may cause the product to restart continuously and cause damage to the product. In addition, when the user uses a non-original power supply or power supply upgrade (such as changing from AC/DC to solar power supply) or uses a solar charger when the sun is not enough, it may cause the terminal device to restart repeatedly. Therefore, how to avoid repeated restarts of terminals such as Fixed Wireless Phones (FWP) due to insufficient power load capacity due to low power grid voltage has become an urgent problem to be solved.

现有技术针对该问题有以下两种解决方案：一种方案是在充电器中设计一个欠压保护，当输入电压低于某个值时，充电器输出切断，从而防止产品不断复位。但是，该方案当原配的电源损坏而使用同规格其他电源或者对电源升级(例如改成使用太阳能充电器)时，同样的问题还是可能发生而使终端产品受到损害。The prior art has the following two solutions to this problem: one solution is to design an undervoltage protection in the charger, and when the input voltage is lower than a certain value, the output of the charger is cut off, thereby preventing the product from continuously resetting. However, in this solution, when the original power supply is damaged and another power supply with the same specification is used or the power supply is upgraded (such as using a solar charger), the same problem may still occur and the terminal product will be damaged.

另一种方案是针对线性电源的特性而提出的，该方案利用线性电源入电压和出电压的线性关系，采用电阻分压，当分压后的得到的电压高于产品的启动电压则说明电源电网的电压足够高，表明该电源能够驱动终端工作。但是这种方案只适用于线性电源，对开关电源不适用。因此，现有技术方案并不能有效解决由于电网电压低而造成的终端设备反复重启的问题。Another solution is proposed for the characteristics of the linear power supply. This solution uses the linear relationship between the input voltage and the output voltage of the linear power supply, and uses resistor voltage division. When the voltage obtained after the voltage division is higher than the starting voltage of the product, it means that the power grid The voltage is high enough, indicating that the power supply can drive the terminal to work. But this scheme is only suitable for linear power supplies, not for switching power supplies. Therefore, the existing technical solutions cannot effectively solve the problem of repeated restarts of the terminal equipment caused by the low grid voltage.

发明内容 Contents of the invention

针对现有技术的缺陷，本发明目的在于提供一种防止终端设备反复重启的方法与装置。该方法通过测试电源的带负载能力，只有满足终端设备的带负载能力时才将电源供应给终端设备使用，有效避免了终端设备由于电网电压过低、阳光不足等外界条件变化时而导致的该电源带负载能力不足(即输出功率不足)而引发的产品不断重新启动的问题。In view of the defects in the prior art, the purpose of the present invention is to provide a method and device for preventing terminal equipment from restarting repeatedly. By testing the load capacity of the power supply, the method supplies the power to the terminal equipment only when the load capacity of the terminal equipment is met, effectively avoiding the power failure of the terminal equipment due to changes in external conditions such as low grid voltage and insufficient sunlight. The problem of continuous restart of the product caused by insufficient load capacity (that is, insufficient output power).

为实现以上发明目的，本发明一实施例提供一种防止终端设备反复重启的方法，所述方法包括：根据所述终端设备正常工作所需的电压值和功率值对所述电源的带负载能力进行检测；如果所述电源满足终端设备正常工作的要求，则将所述电源提供给所述终端设备使用；如果所述电源不能满足终端设备正常工作的要求，则继续检测所述电源的带负载能力。In order to achieve the purpose of the above invention, an embodiment of the present invention provides a method for preventing terminal equipment from repeatedly restarting, the method includes: adjusting the load capacity of the power supply according to the voltage value and power value required for the normal operation of the terminal equipment Perform detection; if the power supply meets the requirements for normal operation of the terminal equipment, then provide the power supply for the use of the terminal equipment; if the power supply cannot meet the requirements for normal operation of the terminal equipment, continue to detect the load of the power supply ability.

为实现以上发明目的，本发明另一实施例提供一种防止终端设备反复重启的装置，所述装置包括：带载能力检测单元，用于根据所述终端设备正常工作所需的电压值和功率值对所述电源的带负载能力进行检测；电源供电控制单元，如果所述电源满足终端设备正常工作的要求，则将所述电源提供给所述终端设备使用；如果所述电源不能满足终端设备正常工作的要求，则继续检测所述电源的带负载能力。In order to achieve the purpose of the above invention, another embodiment of the present invention provides a device for preventing repeated restarts of terminal equipment, the device includes: a load capacity detection unit, which value to detect the load capacity of the power supply; the power supply control unit, if the power supply meets the requirements for the normal operation of the terminal equipment, then provide the power supply to the terminal equipment; if the power supply cannot meet the requirements of the terminal equipment To meet the requirement of normal work, continue to detect the load carrying capacity of the power supply.

本发明实施例的方法一方面根据不同产品正常工作所需的电压和功率，预先对所使用的电源(包括AC/DC电源和太阳能充电器等)进行带载能力的检测，只有满足产品功率要求的电源才能对产品进行供电；另一方面在电源给产品供电之后，仍然实时检测并反馈回电源的带负载能力，一旦不满足终端的带负载需求则及时断开供电线路重新对电源进行检测。该方法能够防止因电源电压低、阳光不足、使用非原装电源或电源升级等原因使电源带载能力不足而造成产品不断的重启的问题。In the method of the embodiment of the present invention, on the one hand, according to the voltage and power required for the normal operation of different products, the load capacity of the used power supply (including AC/DC power supply and solar charger, etc.) is detected in advance. On the other hand, after the power supply supplies power to the product, the load capacity of the power supply is still detected and fed back in real time. Once the load demand of the terminal is not met, the power supply line is disconnected in time to retest the power supply. This method can prevent the problem of continuous restart of the product due to insufficient power supply capacity due to low power supply voltage, lack of sunlight, use of non-original power supply or power supply upgrade.

附图说明 Description of drawings

图1为本发明实施例防止终端设备反复重启的装置原理图之一；FIG. 1 is one of the schematic diagrams of the device for preventing terminal equipment from restarting repeatedly according to an embodiment of the present invention;

图2为本发明实施例带载能力检测单元20的一种细化功能框图；Fig. 2 is a kind of detailed functional block diagram of carrying capacity detection unit 20 of the embodiment of the present invention;

图3为本发明实施例防止终端设备反复重启的装置的另一原理图；FIG. 3 is another schematic diagram of the device for preventing terminal equipment from restarting repeatedly according to an embodiment of the present invention;

图4为本发明实施例例防止终端设备反复重启的一种方法流程图；FIG. 4 is a flowchart of a method for preventing repeated restarts of a terminal device according to an embodiment of the present invention;

图5为本发明实施例防止终端设备反复重启的装置的一种实际电路图。FIG. 5 is an actual circuit diagram of an apparatus for preventing terminal equipment from restarting repeatedly according to an embodiment of the present invention.

具体实施方式 Detailed ways

以下结合附图对本发明具体实施方式进行详细说明：The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:

本发明实施例提供一种防止终端设备反复重启的方法与装置。该方法一方面根据终端设备的电压和功率要求预先测试电源的带负载能力，只有满足终端设备的正常工作要求时才将电源供应给终端设备使用；另一方面，当电源给终端供电之后仍然实时检测并反馈回电源的带负载能力，一旦不满足终端的带负载需求则及时断开供电线路重新对电源的带负载能力进行检测，直到满足了终端正常工作的需求后，才将电源提供给终端设备。本发明实施例的方法有效避免了由于电源带载能力不足导致终端设备反复重启的问题。Embodiments of the present invention provide a method and device for preventing repeated restarts of terminal equipment. On the one hand, this method pre-tests the load capacity of the power supply according to the voltage and power requirements of the terminal equipment, and supplies the power to the terminal equipment only when it meets the normal working requirements of the terminal equipment; Detect and feed back the load capacity of the power supply. Once the load requirements of the terminal are not met, the power supply line will be disconnected in time to retest the load capacity of the power supply. The power supply will not be provided to the terminal until the normal operation requirements of the terminal are met. equipment. The method in the embodiment of the present invention effectively avoids the problem of repeated restarts of the terminal device due to insufficient power supply capacity.

图1为本发明实施例防止终端设备反复重启的装置原理图之一。如图所示，本发明实施例防止终端设备反复重启的装置50连接电源10和终端设备40，用于将符合终端设备40工作要求的电源10提供给终端设备40。该装置50进一步包括：带载能力检测单元20和电源供电控制单元30。其中：带载能力检测单元20，用于根据所述终端设备40正常工作所需的电压值和功率值对所述电源10的带负载能力进行检测；电源供电控制单元30，用于选择电源10的供电对象，如果所述电源10满足终端设备40正常工作的要求，则将所述电源10提供给所述终端设备40使用；如果所述电源10不能满足终端设备40正常工作的要求，则继续检测所述电源10的带负载能力。FIG. 1 is one of schematic diagrams of an apparatus for preventing repeated reboots of a terminal device according to an embodiment of the present invention. As shown in the figure, the device 50 for preventing repeated restarts of the terminal device in this embodiment of the present invention connects the power source 10 and the terminal device 40 to provide the terminal device 40 with the power source 10 that meets the working requirements of the terminal device 40 . The device 50 further includes: a load capacity detection unit 20 and a power supply control unit 30 . Wherein: the load capacity detection unit 20 is used to detect the load capacity of the power supply 10 according to the voltage value and power value required for the normal operation of the terminal device 40; the power supply control unit 30 is used to select the power supply 10 If the power supply 10 meets the requirements for the normal operation of the terminal equipment 40, then provide the power supply 10 for the terminal equipment 40 to use; if the power supply 10 cannot meet the requirements for the normal operation of the terminal equipment 40, continue Detect the load capacity of the power supply 10 .

此外，在一较佳实施方式中，该装置50还包括反馈控制单元60，用于在将所述电源提供给所述终端设备使用之后，继续对所述电源的带负载能力进行实时检测；一旦检测到所述电源不满足终端设备正常工作的要求，则切断所述电源对所述终端的供电，重新检测所述电源的带负载能力。In addition, in a preferred embodiment, the device 50 also includes a feedback control unit 60, configured to continue to perform real-time detection of the load carrying capacity of the power supply after the power supply is provided to the terminal equipment; It is detected that the power supply does not meet the requirements for normal operation of the terminal equipment, cutting off the power supply of the power supply to the terminal, and re-testing the load carrying capacity of the power supply.

图2为本发明实施例带载能力检测单元20的一种细化功能框图。如图所示，带载能力检测单元20还包括负载电路201和比较单元202。负载电路201为所述终端设备电阻的等效电路，所述负载电路201连接所述电源10；比较单元202，用于检测所述负载电路201的电压值，比较所述负载电路201的电压与所述终端设备40正常工作所需电压值的大小；如果所述负载电路201的电压大于所述终端设备40正常工作所需电压值，则判断所述电源10能够带动所述终端设备40正常工作，否则判断所述电源10不能带动所述终端设备40正常工作。FIG. 2 is a detailed functional block diagram of the load capacity detection unit 20 according to the embodiment of the present invention. As shown in the figure, the load capacity detection unit 20 also includes a load circuit 201 and a comparison unit 202 . The load circuit 201 is an equivalent circuit of the resistance of the terminal equipment, the load circuit 201 is connected to the power supply 10; the comparison unit 202 is used to detect the voltage value of the load circuit 201, and compare the voltage of the load circuit 201 with The size of the voltage value required for the normal operation of the terminal device 40; if the voltage of the load circuit 201 is greater than the voltage value required for the normal operation of the terminal device 40, then it is judged that the power supply 10 can drive the terminal device 40 to work normally , otherwise it is determined that the power supply 10 cannot drive the terminal device 40 to work normally.

在一较佳的实施方式中，该比较单元202为比较器，所述比较器的一个输入端输入的电压值为所述终端设备40正常工作所需电压值，所述比较器的另一个输入端接收所述负载电路201的输出电压，所述比较器将比较结果以高、低电平输出。如以高电平表示负载电路201的输出电压大于所述终端设备40正常工作所需电压值，即所述电源10能够带动所述终端设备40正常工作；以低电平表示负载电路201的输出电压小于所述终端设备40正常工作所需电压值，即所述电源10不能带动所述终端设备40正常工作。In a preferred embodiment, the comparison unit 202 is a comparator, the voltage value input by one input terminal of the comparator is the voltage value required for the normal operation of the terminal device 40, and the other input terminal of the comparator The terminal receives the output voltage of the load circuit 201, and the comparator outputs the comparison result in high and low levels. For example, a high level indicates that the output voltage of the load circuit 201 is greater than the voltage value required for the normal operation of the terminal device 40, that is, the power supply 10 can drive the terminal device 40 to work normally; a low level indicates that the output of the load circuit 201 The voltage is lower than the voltage value required for the normal operation of the terminal device 40 , that is, the power supply 10 cannot drive the terminal device 40 to work normally.

图3为本发明实施例防止终端设备反复重启的装置的另一原理图；如图所示，该装置50’的电源供电控制单元30包括带载检测开关301和终端供电开关302。所述带载检测开关301连接所述电源和所述带载能力检测单元20，所述终端供电开关302连接所述电源和所述终端以及所述带载能力检测单元20。当所述电源10不能满足终端设备40正常工作的要求时，所述带载能力检测单元20的输出信号控制所述带载检测开关301闭合、所述终端供电开关302断开，所述电源10提供给所述带载能力检测单元20以继续检测所述电源10的带负载能力；当所述电源10能够满足终端设备40正常工作的要求时，所述带载能力检测单元20的输出信号控制所述带载检测开关301断开、所述终端供电开关302闭合，所述电源10提供给所述终端设备40使用。Fig. 3 is another schematic diagram of the device for preventing terminal equipment from repeatedly restarting according to an embodiment of the present invention; as shown in the figure, the power supply control unit 30 of the device 50' includes a load detection switch 301 and a terminal power supply switch 302. The load detection switch 301 is connected to the power supply and the load capacity detection unit 20 , and the terminal power supply switch 302 is connected to the power supply, the terminal and the load capacity detection unit 20 . When the power supply 10 cannot meet the requirements for the normal operation of the terminal device 40, the output signal of the load capacity detection unit 20 controls the load detection switch 301 to close, the terminal power supply switch 302 to open, and the power supply 10 Provided to the load capacity detection unit 20 to continue to detect the load capacity of the power supply 10; when the power supply 10 can meet the requirements of the normal operation of the terminal equipment 40, the output signal of the load capacity detection unit 20 controls The load detection switch 301 is turned off, the terminal power supply switch 302 is turned on, and the power supply 10 is provided to the terminal device 40 for use.

此外，所述装置50’还包括反馈控制单元60，用于在将所述电源提供给所述终端设备使用之后，继续对所述电源的带负载能力进行实时检测；一旦检测到所述电源不满足终端设备正常工作的要求，则切断所述电源对所述终端的供电，重新检测所述电源的带负载能力。In addition, the device 50' also includes a feedback control unit 60, configured to continue to detect the load capacity of the power supply in real time after the power supply is provided to the terminal equipment; once it is detected that the power supply is not If the requirements for normal operation of the terminal equipment are met, the power supply of the power supply to the terminal is cut off, and the load carrying capacity of the power supply is re-detected.

图4为本发明实施例例防止终端设备反复重启的一种方法流程图。以下结合图1-图3对该流程进行详细说明。FIG. 4 is a flow chart of a method for preventing repeated restarts of a terminal device according to an embodiment of the present invention. The process will be described in detail below with reference to FIGS. 1-3 .

步骤S401，接通电源，带载检测开关301闭合且终端供电开关302断开，将电源提供给带载能力检测单元20，以对电源10的带负载能力进行检测；Step S401, turn on the power supply, close the load detection switch 301 and open the terminal power supply switch 302, and provide the power supply to the load capacity detection unit 20 to detect the load capacity of the power supply 10;

步骤S402，带载能力检测单元20的负载电路201模拟终端设备的工作，并输出电压值，带载能力检测单元20的比较单元202将负载电路201的电压与终端设备40正常工作的电压值进行比较，生成比较结果；Step S402, the load circuit 201 of the load capacity detection unit 20 simulates the operation of the terminal equipment, and outputs a voltage value, and the comparison unit 202 of the load capacity detection unit 20 compares the voltage of the load circuit 201 with the voltage value of the normal operation of the terminal equipment 40 Compare, generate comparison results;

步骤S403，判断负载电路201的输出电压是否大于所述终端设备40正常工作所需电压值？如果大于则进入步骤S404，反之，则返回步骤S401；Step S403, judging whether the output voltage of the load circuit 201 is greater than the voltage value required for the normal operation of the terminal device 40? If greater, then enter step S404, otherwise, then return to step S401;

步骤S404，带载检测开关301断开且终端供电开关302闭合，将电源提供给终端设备使用；Step S404, the on-load detection switch 301 is turned off and the terminal power supply switch 302 is closed to provide power to the terminal equipment;

步骤S405，在电源对终端供电之后，继续对电源的带负载能力进行检测；Step S405, after the power supply supplies power to the terminal, continue to detect the load capacity of the power supply;

步骤S406，判断所述电源是否满足终端的工作要求，如果带负载能力满足要求则返回步骤S404继续给终端供电；否则回到步骤S401，重新检测电源的带负载能力；Step S406, judging whether the power supply meets the working requirements of the terminal, if the load capacity meets the requirements, return to step S404 to continue supplying power to the terminal; otherwise, return to step S401, and re-detect the load capacity of the power supply;

步骤S407，电源对终端的供电结束。Step S407, the power supply of the power supply to the terminal ends.

图5为本发明实施例防止终端设备反复重启的装置的一种实际电路图。该实施例需要对一个10V/5W的终端产品供电。需要说明的是，该电路图仅用于对本发明实施方式的说明，而不用于限定具体的实施方式，也不用于对权利要求的保护范围进行限定。FIG. 5 is an actual circuit diagram of an apparatus for preventing terminal equipment from restarting repeatedly according to an embodiment of the present invention. This embodiment needs to power a 10V/5W end product. It should be noted that this circuit diagram is only used to illustrate the implementation of the present invention, and is not used to limit the specific implementation, nor is it used to limit the protection scope of the claims.

如图5所示，由该终端产品的规格可知其电阻为20欧姆，因此该装置的负载电路201为和20欧姆电阻等效的电路，本实施例的装置的负载电路201采用10个200欧的电阻并联形成20欧姆的电阻。另外，本装置的比较单元202采用比较器U2来对负载电路201的输出电压进行检测；本装置的反馈控制单元60采用比较器U3进行反馈电压的检测；本装置的带载检测开关301为Q2、终端供电开关302为Q4。该电路的具体工作原理如下：As shown in Figure 5, it can be seen from the specifications of the terminal product that its resistance is 20 ohms, so the load circuit 201 of the device is a circuit equivalent to a 20 ohm resistance, and the load circuit 201 of the device of this embodiment adopts ten 200 ohm resistors. The resistors are connected in parallel to form a 20 ohm resistor. In addition, the comparison unit 202 of the device uses the comparator U2 to detect the output voltage of the load circuit 201; the feedback control unit 60 of the device uses the comparator U3 to detect the feedback voltage; the load detection switch 301 of the device is Q2 , The terminal power supply switch 302 is Q4. The specific working principle of the circuit is as follows:

(1)当插入电源时Q1导通，Q2上的VGS(栅--源电压)为负，Q2导通，电源的输出直接加在20欧的电阻上，通过比较器U2判断电阻输出电压是否高于10V。(1) When the power supply is plugged in, Q1 is turned on, VGS (gate-source voltage) on Q2 is negative, Q2 is turned on, the output of the power supply is directly added to the 20 ohm resistor, and the comparator U2 is used to judge whether the output voltage of the resistor is higher than 10V.

(2)如果负载电路输出电压高于10V，比较器U2输出高电平使得Q3导通，Q4上的VGS为负，Q4导通；Q4导通后Q1的基极为高电平，Q1不导通；Q2上的VGS几乎为零，Q2关闭；而Q3的基极一直是高电平，Q3导通；Q4也一直导通，电源给产品供电。(2) If the output voltage of the load circuit is higher than 10V, the comparator U2 outputs a high level so that Q3 is turned on, VGS on Q4 is negative, and Q4 is turned on; after Q4 is turned on, the base of Q1 is at a high level, and Q1 does not conduct VGS on Q2 is almost zero, and Q2 is turned off; while the base of Q3 is always at high level, Q3 is turned on; Q4 is always turned on, and the power supplies power to the product.

(3)如果负载电路输出电压低于10V，比较器U2输出低电平，Q3不导通，Q4也不会导通，电源不会给产品供电，功率检测电路一直工作直到检测到电源输出功率足够。(3) If the output voltage of the load circuit is lower than 10V, the comparator U2 outputs a low level, Q3 will not conduct, Q4 will not conduct, the power supply will not supply power to the product, and the power detection circuit will continue to work until the output power of the power supply is detected enough.

(4)如果电源在一段时间功率检测满足条件能够给产品供电，后来由于外界条件变化不能给产品提供足够的功率，则重新进入功率检测阶段，不给产品供电。该电路图中，当VOUT上的电压小于5.0V时，比较器U3输出低电平，则Q3基极为低电平，Q3关闭，随着Q4也关闭；比较器U3输出低电平，则Q1和Q2导通，重新进入功率检测阶段，不对产品供电。(4) If the power supply can supply power to the product after the power detection meets the conditions for a period of time, but later cannot provide enough power to the product due to changes in external conditions, it will re-enter the power detection stage and will not supply power to the product. In this circuit diagram, when the voltage on VOUT is less than 5.0V, comparator U3 outputs low level, then the base of Q3 is low level, Q3 is closed, and Q4 is also closed; comparator U3 outputs low level, then Q1 and Q2 is turned on and re-enters the power detection stage without supplying power to the product.

本发明实施例的装置根据不同产品要求的功率，预先对所使用的电源(包括AC/DC电源和太阳能充电器等)进行带载能力的检测，然后才让能满足产品功率要求的电源对产品进行供电；并且，在电源给产品供电的过程中仍然实时检测并反馈回电源的带负载能力，一旦不满足终端的带负载需求则及时断开供电线路重新对电源进行检测。本发明实施例采用上述方案能够防止因电源电压低、阳光不足、使用非原装电源或电源升级等原因使电源带载能力不足而造成产品不断的重启的问题。According to the power required by different products, the device of the embodiment of the present invention detects the load capacity of the used power supply (including AC/DC power supply and solar charger, etc.) in advance, and then allows the power supply that can meet the power requirements of the product to be used for the product. Power supply; and, in the process of the power supply to the product, the load capacity of the power supply is still detected and fed back in real time. Once the load demand of the terminal is not met, the power supply line is disconnected in time to re-test the power supply. The embodiment of the present invention adopts the above solution to prevent the problem of continuous restart of the product due to insufficient power supply capacity due to low power supply voltage, insufficient sunlight, use of non-original power supply or power supply upgrade.

以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不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，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. Protection scope, within the spirit and principles of the present invention, any modification, equivalent replacement, improvement, etc., shall be included in the protection scope of the present invention.

Claims (8)

1, a kind of method that prevents that terminal equipment from restarting repeatedly is characterized in that, described method comprises:
Detect according to the required magnitude of voltage of described terminal equipment operate as normal and performance number carrying load ability described power supply;
If described power supply satisfies the requirement of terminal equipment operate as normal, then described power supply is offered described terminal equipment and use;
If described power supply can not satisfy the requirement of terminal equipment operate as normal, then continue to detect the carrying load ability of described power supply.
2, method according to claim 1 is characterized in that, described method also comprises:
After described power supply being offered described terminal equipment use, continue the carrying load ability of described power supply is detected in real time;
In case detect the requirement that described power supply does not satisfy the terminal equipment operate as normal, then cut off of the power supply of described power supply to described terminal, detect the carrying load ability of described power supply again.
3, method according to claim 1 is characterized in that, detects according to the required magnitude of voltage of described terminal equipment operate as normal and the performance number carrying load ability to described power supply: comprising:
Employing is connected described power supply with the load circuit of the resistance value equivalence of described terminal equipment;
Detect the magnitude of voltage of described load circuit, the size of the magnitude of voltage of more described load circuit and described terminal equipment operate as normal required voltage value;
If the magnitude of voltage of described load circuit greater than described terminal equipment operate as normal required voltage value, judges that then described power supply can drive described terminal equipment operate as normal, otherwise judges that described power supply can not drive described terminal equipment operate as normal.
4, a kind of device that prevents that terminal equipment from restarting repeatedly is characterized in that, described device comprises:
The load capacity detecting unit is used for detecting according to the required magnitude of voltage of described terminal equipment operate as normal and the performance number carrying load ability to described power supply;
The power supply supply control unit if described power supply satisfies the requirement of terminal equipment operate as normal, then offers described power supply described terminal equipment and uses; If described power supply can not satisfy the requirement of terminal equipment operate as normal, then described power supply is offered the carrying load ability that the load capacity detecting unit continues to detect described power supply.
5, device according to claim 4 is characterized in that, described device also comprises:
Feedback control unit is used for continuing the carrying load ability of described power supply is detected in real time after described power supply being offered described terminal equipment use; In case detect the requirement that described power supply does not satisfy the terminal equipment operate as normal, then cut off of the power supply of described power supply to described terminal, detect the carrying load ability of described power supply again.
6, device according to claim 4 is characterized in that, described load capacity detecting unit comprises:
Load circuit, described load circuit are the equivalent electric circuit of described terminal equipment resistance, and described load circuit connects described power supply;
Comparing unit is used to detect the magnitude of voltage of described load circuit, the size of the voltage of more described load circuit and described terminal equipment operate as normal required voltage value; If the voltage of described load circuit greater than described terminal equipment operate as normal required voltage value, judges that then described power supply can drive described terminal equipment operate as normal, otherwise judges that described power supply can not drive described terminal equipment operate as normal.
7, device according to claim 6, it is characterized in that, described comparing unit is a comparator, the magnitude of voltage of an input input of described comparator is described terminal equipment operate as normal required voltage value, another input of described comparator receives the voltage of described load circuit, and described comparator is exported high and low level to distinguish different comparative results.
8, device according to claim 4 is characterized in that, described power supply supply control unit comprises: band carries sense switch and terminal power switch;
Described band carries sense switch, connects described power supply and described load capacity detecting unit;
Described terminal power switch connects described power supply and described terminal;
When described power supply can not satisfy requiring of terminal equipment operate as normal, described band carried the sense switch closure, described terminal power switch disconnects, and described power supply offers described load capacity detecting unit to detect the carrying load ability of described power supply;
When described power supply can satisfy requiring of terminal equipment operate as normal, described band carried sense switch disconnection, described terminal power switch closure, and described power supply offers described terminal equipment and uses.
CN2009100026710A 2009-01-14 2009-01-14 Method for preventing repeated restart of terminal device and device thereof Expired - Fee Related CN101626159B (en)

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