Smart searchlighting system for indoor short-range communication

Abstract

The invention discloses a smart searchlighting system for indoor short-range communication. The smart searchlighting system comprises a bridge circuit, a central processor, a field programmable gate array circuit, a power circuit and an optical key module, wherein the bridge circuit is used for being connected with a computer USB interface and an optical transceiver circuit and receiving or transmitting a signal for transformation processing from a data signal of a computer USB; the power circuit is connected with the central processor and the field programmable gate array circuit separately; and a solar cell panel, a voltage stabilizing circuit, a power controller and a DC power supply circuit are arranged in the power circuit. According to the system, a point-to-point communication mode is achieved, relatively small receiving angle and transmitting angle are adopted for receiving and transmitting, only manual coarse alignment is needed in use, the smart searchlighting system is applied to indoor short-range wireless communication and can reach a data communication rate of over 10Mbps, the transmission distance can reach about 5m, and the smart searchlighting system basically meets the data communication requirements of indoor environments of an office, a laboratory, a family and the like.

Description

technical field [0001] The invention relates to the technical field of visible light communication, in particular to an indoor short-distance communication intelligent searchlight system. Background technique [0002] Solar energy is generated by the hydrogen-helium fusion of hydrogen atoms inside the sun and releases huge nuclear energy, which is the radiant energy from the sun. [0003] Most of the energy required by human beings comes directly or indirectly from the sun. Plants release oxygen and absorb carbon dioxide through photosynthesis, and convert solar energy into chemical energy and store it in plants. Fossil fuels such as coal, oil, and natural gas are also primary energy sources that evolved from ancient animals and plants buried underground over a long geological period. The energy contained in the earth itself usually refers to the energy related to the heat energy inside the earth and the energy related to the nuclear reaction. [0004] Visible light commu...

AI Technical Summary

Problems solved by technology

[0008] Although optical communication has many advantages, there are also some disadvantages, such as: light waves cannot penetrate obstacles such as walls, and are susceptible to interference from background light noise such as sunlight, incandescent lamps, and fluorescent lamps.

In the prior art, the realization of communication must still depend on the communication network. If the signal of the wireless communication network is relatively weak or there is no signal of the communication network when traveling in the deep mountains, the friends who are far away (for example, a friend who is alone or lost and teams) cannot get in touch through the communication network

The transmission of information through the communication network brings convenience to people's lives, but its application still has limitations.

Moreover, communication using a communication network requires payment of fees to the operator of the communication network

In particular, the use of communication networks for communication within a short distance increases the cost of communication

At the same time, the current lighting device using LED is only used for lighting and has a single function, so a flashlight based on visible light is needed to realize the function of lighting and the purpose of communication

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