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Method and equipment for detecting power supply voltage fluctuation

A technology of power supply voltage and power supply equipment, which is applied in the field of detection of power supply voltage fluctuations, and can solve problems such as inability to accurately record the power supply voltage voltage value and generation time

Inactive Publication Date: 2010-08-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a method and device for detecting power supply voltage fluctuations, which solves the problem in the prior art that the voltage value and generation time of the power supply voltage cannot be accurately recorded

Method used

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  • Method and equipment for detecting power supply voltage fluctuation
  • Method and equipment for detecting power supply voltage fluctuation
  • Method and equipment for detecting power supply voltage fluctuation

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Experimental program
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Embodiment 1

[0030] In order to accurately sample the input power supply voltage value of the communication device, record the range of power supply voltage fluctuations, abnormal voltage values ​​and generation time, and output the voltage fluctuation curve, the embodiment of the present invention provides a method for detecting power supply voltage fluctuations, see figure 1 , the method includes:

[0031] 101: Obtain the power supply voltage of the power supply device;

[0032] 102: Sampling the power supply voltage to obtain the sampled voltage value and the generation time of the voltage value;

[0033] 103: Judging whether the voltage value exceeds the normal range of the power supply voltage;

[0034] If yes, record the voltage value and the generation time of the voltage value, and send out an alarm signal;

[0035] Otherwise, record the voltage value and the generation time of the voltage value.

[0036] Wherein, after obtaining the power supply voltage of the power supply dev...

Embodiment 2

[0053] see figure 2 , the embodiment of the present invention provides a set of circuit system for detecting fluctuations in power supply voltage. The function is as follows:

[0054] 1), the polarity conversion module, the main function is to convert the input negative power supply voltage to positive power supply voltage; if it is to monitor the positive power supply, this part can be removed.

[0055] 2), the voltage value detection module, wherein the voltage value detection module includes a voltage value detection chip, first converts the detected power supply voltage into a voltage range that the voltage value detection chip can handle, such as 0 ~ 5VDC, the embodiment of the present invention is not limited to The voltage range; then the converted voltage is sent to the voltage value detection chip for detection; the voltage value detection chip reports the detected voltage value to the MCU (Micro Controller Unit, Micro Control Unit) for processing, wherein the volta...

Embodiment 3

[0089] An embodiment of the present invention provides a device for detecting power supply voltage fluctuations, see Figure 5 , the device consists of:

[0090] An acquisition module 301, configured to acquire the power supply voltage of the power supply device;

[0091] The sampling module 302 is used to sample the power supply voltage obtained by the obtaining module 301 to obtain the sampled voltage value and the generation time of the voltage value. The functions of this module are as follows: image 3 The voltage value detection module in;

[0092] A judging module 303, configured to judge whether the voltage value sampled by the sampling module 302 exceeds the normal range of the power supply voltage;

[0093] The first recording module 304 is used to record the voltage value and the generation time of the voltage value when the judging module 303 judges that the sampled voltage value exceeds the normal range of the power supply voltage;

[0094] The alarm module 305...

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Abstract

The invention discloses a method and equipment for detecting the power supply voltage fluctuation, belonging to the field of the circuit. The method for detecting the power supply voltage fluctuation comprises the following steps: acquiring the power supply voltage of power supply equipment; sampling the power supply voltage of power supply equipment to acquire the sampled power supply voltage and the sampled power supply voltage generation time; judging whether the sampled power supply voltage exceeds the normal range of the power supply voltage; recording the sampled power supply voltage value and the sampled power supply voltage value generation time and sending an alarming signal if the sampled power supply voltage exceeds the normal range of the power supply voltage; or recording the sampled power supply voltage value and the sampled power supply voltage value generation time if the sampled power supply voltage does not exceed the normal range of the power supply voltage. The equipment for detecting the power supply voltage fluctuation comprises an acquiring module, a sampling module, a judging module, a first recording module and a second recording module. Due to the adoption of the method for detecting the power supply voltage fluctuation, which is provided in the embodiment of the invention, the power supply voltage of inputted in communication equipment can be sampled accurately, the power supply voltage fluctuation range, the abnormal power supply voltage and the abnormal power supply voltage generation time can be recorded, and the power supply voltage fluctuation curve can be outputted.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a method and equipment for detecting power supply voltage fluctuations. Background technique [0002] With the continuous development of communication technology, communication equipment has higher and higher requirements on the performance and accuracy of the power supply, so it is necessary to detect the parameters of the power supply, especially the voltage of the power supply. [0003] At present, communication equipment can provide overvoltage and undervoltage alarm detection functions for the power supply, based on which it can be judged whether the power supply is within the normal voltage range (usually -36Vdc ~ -72Vdc), when the input voltage of the power supply is lower than the minimum voltage When the value is higher than the maximum voltage value, the communication device will report a voltage over-limit alarm. The detection method is the voltage alarm threshold detection met...

Claims

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Application Information

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IPC IPC(8): G01R19/00G01R19/165G01R19/175G01R31/40
Inventor 揭卫平王春燕林廷武李哲
Owner HUAWEI TECH CO LTD
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