Self-harvesting pyroelectric detector and adaptive detection method according to energy storage state

Abstract

The invention is a kind of self-harvesting pyroelectric detector, including pyroelectric sensor, Fresnel lens, SOLAR? SC4155I, micro-power consumption management circuit for energy harvesting and storage, single-chip microcomputer and shell structure; Fresnel lens is located above the sensitive element of the pyroelectric sensor, micro-power consumption management circuit for pyroelectric sensor and energy harvesting and storage, and single-chip microcomputer Connected, the micro-power consumption management circuit of energy harvesting and storage is connected with SOLAR? The SC4155I is connected to the single-chip microcomputer; the single-chip microcomputer, the micro-power management circuit for energy harvesting and storage, and the pyroelectric sensor are fixed inside the shell structure, SOLAR? SC4155I and Fresnel lens are fixed on the shell structure surface. The invention combines low-light solar panels, micro-power consumption management circuits for energy collection and storage, and energy storage hot backup technology to efficiently collect, store and manage energy, and has the advantages of self-management of energy, small operation and maintenance workload, high efficiency and reliability.

Description

technical field [0001] The invention belongs to the technical field of security pyroelectric detectors, and in particular relates to a pyroelectric detector that adopts self-energy harvesting technology and performs self-adaptive detection according to the energy storage state of an energy storage device. Background technique [0002] With the advancement of building intelligence in my country, new functions of intelligent buildings are constantly emerging, but the security function is always an indispensable and most basic function of intelligent buildings, and the pyroelectric detector is one of the basic technical equipment of the security system. one. Therefore, the business community and academia have conducted extensive, in-depth and lasting research and practice on the reliability, availability and maintainability of pyroelectric detectors and pyroelectric detector security systems. At present, the mainstream products of pyroelectric detectors in my country are wired ...

AI Technical Summary

Problems solved by technology

The above patents indicate the overall development idea of ​​pyroelectric detector security products, but there are still considerable limitations. The inherent defects of battery power supply cannot be fundamentally solved within the foreseeable time. Wireless pyroelectric detectors and wireless pyroelectric detectors There are still deficiencies in the high availability, high reliability, ease of use and maintainability of the electrical detector security system, and it is necessary to propose improvements on the basis of existing technologies

[0004] Although self-energy harvesting technology is expected to eradicate the inherent defects of battery power supply, the efficiency of self-energy harvesting technology is closely related to the external environment, and the collected environmental energy has uncertain characteristics.

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