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Disaster prediction terminal with input protection

A terminal and input port technology, applied in the field of disaster prediction terminals, can solve problems such as casualties and property losses, and achieve the effect of simple protection circuit structure and ensuring normal operation.

Inactive Publication Date: 2014-12-17
CHENGDU HANKANG INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The huge torrent and mudslide disaster similar to Zhouqu caused huge casualties and property losses

Method used

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  • Disaster prediction terminal with input protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 1 The shown disaster prediction terminal with input protection includes a control circuit board, which is characterized in that a protection circuit is connected to the input port of the control circuit board, and the protection circuit includes a diode D1, a diode D2, Diode D3, resistor R and capacitor C, the cathodes of the diode D1 and the diode D2 are connected to the power supply VCC, the two ends of the resistor R are respectively connected to the anodes of the diode D1 and the diode D2, the diode The positive pole of D2 is connected to the negative pole of the diode D3, the positive pole of the diode D3 is grounded, the positive pole of the diode D1 is connected to the grounding capacitor C, and the negative pole of the diode D3 is connected to the input port of the control circuit board .

[0018] In this embodiment, the resistor R mainly acts as a current limiter, and the current forms a voltage drop on the resistor R to prevent large currents f...

Embodiment 2

[0020] Such as figure 1 In the disaster prediction terminal with input protection shown, in order to optimize the performance of the protection circuit, this embodiment is optimized on the basis of Embodiment 1, that is, the resistance value of the resistor R is 1000 ohms to 1000 ohms. 2000 ohms.

[0021] The capacitance of the capacitor C is 100F to 200F.

[0022] The diode D1, diode D2 and diode D3 are all IN4001.

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Abstract

The invention discloses a disaster prediction terminal with input protection. The disaster prediction terminal comprises a control circuit board and is characterized in that a protection circuit is connected on an input port of the control circuit board and comprises a diode D1, a diode D2, a diode D3, a resistor R and a capacitor C, negative electrodes of the diode D1 and the diode D2 are connected on a power supply VCC, two ends of the resistor R are connected on positive electrodes of the diode D1 and the diode D2 respectively, the positive electrode of the diode D2 is connected on a negative electrode of the diode D3, a positive electrode of the diode D3 is grounded, the grounding capacitor C is connected on the positive electrode of the diode D1, the negative electrode of the diode D3 is connected on the input port of the control circuit board, the protection circuit is connected on the input port of the control circuit board to ensure normal operation of the control circuit board, and the protection circuit is simple in structure.

Description

[0001] technical field [0002] The invention relates to the field of disaster prediction terminals, in particular to a disaster prediction terminal with input protection. Background technique [0003] Sichuan is located in a basin with a large amount of water, making it a place where floods and droughts frequently occur. Climate change, intensified production activities, and extreme weather events have exacerbated the occurrence of floods and droughts. As one of the most serious natural disasters in the world, floods occur in our country almost every year, and its frequency and the casualties and property losses caused by other natural disasters are much higher than those in developed countries. [0004] So far, the direct economic losses caused by the floods have reached more than 200 billion yuan, and the number of dead and missing people has exceeded 2,000. And the huge torrent and mudslide disaster similar to Zhouqu caused huge casualties and property losses. The annu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H9/02H02H9/04G08B21/10
Inventor 柴军朱正修
Owner CHENGDU HANKANG INFORMATION IND