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Method and device for power failure safeguard

A power-failure protection and equipment technology, applied in the field of power-failure protection, can solve the problem that the supercapacitor cannot provide a long enough normal working voltage for the data transmission terminal, and achieve the effects of energy saving, complete discharge, and improved utilization of stored electric energy

Inactive Publication Date: 2009-09-02
SANY HEAVY IND CO LTD (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] To sum up, at present, the use of supercapacitors cannot provide the normal working voltage for a long enough time for the data transmission terminal, so that the data transmission terminal can transmit the power-down information of the construction machinery to the remote monitoring center

Method used

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  • Method and device for power failure safeguard
  • Method and device for power failure safeguard

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Embodiment Construction

[0036] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] Because supercapacitors have the following advantages over rechargeable batteries, supercapacitors are used instead of rechargeable batteries to provide power-down protection for the system.

[0038] Due to the large capacity of the super capacitor, also known as "battery capacitor", it has the following advantages:

[0039] ①The supercapacitor can be charged quickly, but the battery will be damaged if it is charged quickly.

[0040] ②Supercapacitors can be cycled hundreds of thousands of times, while rechargeable batteries only have a few hundred times.

[0041] ③ Supercapacitors are small in size and cheaper than rechargeable batteries.

[0042] see figure 2 , which is a flow chart of the first embodiment of a power-down p...

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Abstract

The invention provides a method for power failure safeguard, which comprises the following steps that: before the power failure of a data transmission terminal, a power supply voltage is reduced to the rated voltage of a super capacitor; the rated voltage of the super capacitor is raised to the working voltage of the data transmission terminal to supply power for the data transmission terminal; and after the power failure of the data transmission terminal, the super capacitor discharges, and the discharge voltage of the super capacitor is raised to the working voltage of the data transmission terminal to supply power for the data transmission terminal. Thus, the data transmission terminal can work normally to transmit data information and power failure alarming information to a remote control center. The invention also provides a device for power failure safeguard. The method and the device for power failure safeguard ensure that when the power of the data transmission terminal is off, the discharge time of the super capacitor from an initial value of the full charge to the lowest value meets the working time required by the data transmission terminal after power failure, thereby providing long time normal working voltage for the data transmission terminal.

Description

technical field [0001] The invention relates to the field of electric automation control, in particular to a method and equipment for power failure protection. Background technique [0002] With the development of science and technology, Global Positioning System (GPS, Global Position System) and General Packet Radio Service (GPRS, General Packet Radio Service) are more and more widely used. The remote monitoring center utilizes the GPS and GPRS to monitor the position and working condition of the terminal. [0003] The data transmission terminal integrating the GPS and GPRS has been widely used in engineering machinery. GPS positioning location information of construction machinery. The data transmission terminal transmits the location information and working condition data information of the construction machinery to the remote monitoring center through the GPRS network, which is convenient for the remote monitoring center to manage and query the relevant information of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J15/00H02J9/00G06F1/30
CPCY02B70/30Y04S20/20
Inventor 周翔吴智勇李中华曾小信
Owner SANY HEAVY IND CO LTD (CN)
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