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A residual current detector and fire alarm system

A residual current and detector technology, applied in the field of residual current detectors and fire alarm systems, can solve the problems of inconvenient installation and use, easy electric shock, easy reverse connection of positive and negative poles, etc., and achieves simple and safe use and improved convenience. Effect

Active Publication Date: 2018-07-13
WUXI BRIGHTSKY ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the residual current detectors on the market are designed with 485 communication circuit and on-site power-taking method; 485 bus is a polarized bus, and it is easy to reverse the positive and negative poles. Use brings a lot of inconvenience

Method used

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  • A residual current detector and fire alarm system
  • A residual current detector and fire alarm system
  • A residual current detector and fire alarm system

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Embodiment Construction

[0021] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, a residual current detector includes a CPU unit, the CPU unit is electrically connected to a bus code-receiving circuit and a residual current detection circuit, and the bus code-receiving circuit is electrically connected to a non-polar two-bus input module, and the CPU unit , The bus code-receiving circuit, the residual current detection circuit, and the non-polar two-bus input module are all electrically connected to the bus power supply circuit. The CPU unit is also electrically connected to the fault detection circuit, fault alarm circuit, over-limit alarm circuit, fault detection circuit, Both the fault alarm circuit and the over-limit alarm circuit are electrically connected to the bus power supply circuit to perform fault detection and alarm.

[0022] The CPU unit includes a single-chip microcomputer U2, specifically a 16F684 single-chip microcomputer. The single-chip microcomputer U2 is connected...

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Abstract

The present invention relates to the field of electrical fire alarm, specifically a residual current detector and a fire alarm system, which are simple and safe to use, and greatly improve the convenience of installation and use, a residual current detector, which includes a CPU unit, the The CPU unit is electronically connected to the bus code receiving circuit and the residual current detection circuit. The bus receiving code circuit is electrically controlled to connect to the non-polarity two bus input module. The circuit and the two non-polarity bus input modules are electrically connected to the bus power supply circuit. A fire alarm system includes a fire alarm controller, and the fire alarm controller is electrically connected to the above-mentioned residual current detector.

Description

Technical field [0001] The invention relates to the field of electrical fire alarms, in particular to a residual current detector and a fire alarm system. Background technique [0002] In recent years, the occurrence of electrical fire accidents in my country has been on the rise. The "High Regulation GB50045-2005" proposes to set up residual current detectors to accurately and real-time monitor the faults and abnormal states of electrical lines, detect hidden dangers of electrical fires in time, and call the police and remind the relevant Personnel to eliminate these hidden dangers and avoid electrical fires is undoubtedly a powerful measure to prevent electrical fires. The competent authorities of the Chinese government also attach great importance to it and have successively issued relevant mandatory standards and regulations. Practice has shown that the installation of residual current detectors can effectively prevent electrical fires from occurring, thereby protecting people...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/25
Inventor 郭昭存朱超付宏博郭金国夏顺飞吕卫斌
Owner WUXI BRIGHTSKY ELECTRONICS
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