Mechanical energy self-driven photoelectric detection alarm device

Abstract

The invention discloses a mechanical energy self-driven photoelectric detection alarm device. The device mainly comprises a nano-friction generator power supply module, a sample collection module, a plasma discharge module, an optical detection module, a display storage module, an alarm module and an auxiliary module, is driven by a friction nano-generator, has wearable, portable and long-term usefunctions, and is efficient and convenient; an atmospheric pressure discharge system based on the SDBD principle is adopted, and stable and uniform plasma can be generated under low voltage to serveas an emission spectrum excitation source; air is used as working gas, so that the defect of using inert gas is overcome; an emission spectrum method is adopted, and effective detection of low-frequency weak light is achieved through a photomultiplier and an amplifying circuit; sound, light and vibration alarm is adopted, so that effective detection and alarm in a noisy or dark environment can berealized; a modular design is adopted, detection of different kinds of metal gaseous pollutants can be achieved by replacing the detection module, operation is convenient during maintenance and replacement, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of safety detection of hazardous chemicals, in particular to a photoelectric detection and alarm device driven by a nano friction generator. Background technique [0002] In recent years, the extensive use of hazardous chemicals has led to frequent leakage accidents, posing a serious threat to the environment and human life and health. Exposure to such an environment for a long time or in a high-concentration hazardous environment will cause adsorbates to cause harm to the human body. Therefore, the detection and alarm device can protect the staff to prevent problems before they happen. [0003] At present, domestic detection equipment for toxic gas pollutants is mostly battery-driven combined with sensors. For example, Chinese patent CN209387573U discloses a wireless monitoring system for toxic gases identified by multiple sensors, which can simultaneously detect different gases through different sensors, and is sui...

AI Technical Summary

Problems solved by technology

Chinese patent CN209841692U discloses an inductively coupled plasma emission spectrometer, which can conveniently detect volatile solvents and toxic and harmful solvents; Chinese patent CN106198498A discloses a metal ion detection method and its special sensor array. The generating device and the sensing unit are combined to perform photoelectric signal conversion to realize detection; Chinese patent CN105067651A proposes to use a hand-held energy dispersive X-ray fluorescence spectrometer to measure the content of lead, cadmium, chromium and arsenic in the interior latex paint wall surface, This technology is accurate, fast and environmentally friendly, but it needs to make samples in advance, and it is troublesome to correct spectral lines; Chinese patent CN107084973A discloses a method for detecting trace metal ion pollutants in water by plasma emission spectrometry, using light in the liquid to be tested Collect the spectrum emitted by the micropore discharge and compare it with the existing spectral lines to determine the type and concentration of trace metal ion pollutants in the water

Chinese patent CN1076124148 discloses a nano-triboelectric generator and its preparation method and application. This device can realize attachment on objects with complex shapes and can collect energy for sensing; Chinese patent CN109030772A discloses a nano-triboelectric generator based on The self-powered slope state monitoring system and monitoring method, the nano friction generator provides the power supply of each signal processing module for self-driven real-time monitoring of the slope state; article (NATURE COMMUNICATIONS|DOI:10.1038 / s41467-018-06198-x ) reported the research on the plasma driven by the nano triboelectric generator for the first time, but due to the low voltage generated, the excited micro-plasma, the discharge area is small, and the emitted light is relatively weak, so the application is limited

To sum up, it can be seen that the power supply of the current hazardous chemical detection device is large, and it is difficult to realize portable and online detection, while the handheld hazardous chemical detection device is mostly powered by batteries, which seriously affects its long-term performance

Nano triboelectric generators can be self-driven and powered by human body movement, but the practical application is limited due to the weak plasma discharge generated by the excitation

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