Yes.
Solar surveillance cameras usually have alarm and recording functions. When motion or sound is detected, the camera will emit an alarm sound and activate the video recording function to record the abnormal situation in real time. The video data will be stored on the built-in memory card or transferred to the app via WiFi, and users can view the video in real time or play it back afterwards. As long as the camera is in a normal state and has sufficient power, it can generally record video evidence when an abnormality occurs when an alarm is issued.
How does solar energy work?
Solar energy is generated by the fusion of hydrogen and helium inside the sun to release enormous nuclear energy. This is the radiation energy of the sun.
Most of the energy needed by man iscomes directly or indirectly from the sun. Plants release oxygen, absorb carbon dioxide and convert solar energy into chemical energy and store it in the plant body through photosynthesis. Fossil fuels such as coal, oil and natural gas are also primary energy sources formed by the evolution of ancient plants and animals buried underground over a long geological period. The energy contained in the earth itself generally refers to the energy related to the thermal energy inside the earth and the energy related to the nuclear reaction.
The energy linked to nuclear reactions is nuclear energy. When the structure of the atomic nucleus changes, it can release a large amount of energy, called nuclear energy, or nuclear energy for short, commonly known as atomic energy. It comes from nuclear fission energy resources when uranium, plutoniumm, etc. stored in the earth's crust undergo fission reactions, and nuclear fusion energy resources when deuterium, tritium, lithium, etc. stored in the ocean undergo fusion reactions. These substances release energy when nuclear reactions occur. Currently, the main use of nuclear energy is electricity generation. In addition, it can also be used as other types of energy sources, heat sources, etc. Solar energy is the energy produced by the continuous nuclear fusion reaction process inside the sun. The average intensity of solar radiation in Earth's orbit is 1369 W/㎡. The equatorial circumference of the Earth is 40,076 kilometers, so it can be calculated that the energy obtained by the Earth can reach 173,000 TW. The standard maximum intensity at sea level is 1 kW/m2, and the average annual radiation intensity sur 24 hours at a certain point on the Earth's surface is 0.20 kW/m2, which is equivalent to 102,000 TW of energy.
Although the energy radiated by the sun in the earth's atmosphere is only 2.2 billionth of its total radiation energy, it reaches 173,000 TW, i.e. the energy radiated by the sun on this planet. the earth each second is equivalent to With 5 million tons of coal, the energy radiated to the earth per second is 1.465×10^14 joules. Wind energy, water energy, ocean temperature difference energy, wave energy, and biomass energy on land all come from the sun, even fossil fuels (such as coal, oil, natural gas, etc.) on earth are basically stored since ancient times; Solar energy, that is to say solar energy in the broad sense, covers a very wide area, while solar energy in the narrow sense is limited to converting itdirect sion of photothermal, photoelectric and photochemical energy from solar radiation.
Supplement: The energy converter for photovoltaic solar power generation is a solar cell, and they are called photovoltaic cells. The principle of energy production by solar cells is the photovoltaic effect. When sunlight hits a solar cell, it absorbs light energy and creates electron-hole pairs. Under the action of the electric field built into the battery, electrons and holes are separated, and charges of different signs accumulate at the two ends of the battery, which generates "photovoltage". This is the “photovoltaic effect”. If electrodes are removed from both sides of the built-in electric field and a load is connected, a "photogenerated current" will flow through the load, thereby obtaining power output. In this way, solar energy becomes energypractical electric. The above working principle can be summarized into the following three main processes: (1) After the solar cell absorbs photons of a certain energy, electron-hole pairs are generated in the semiconductor, called " photogenerated carriers”. the two are opposites. Electrons are negatively charged and holes are positively charged; (2) Carriers with opposite electrical properties are separated by the electrostatic field generated by the P-N junction of the semiconductor. (2) Electrons and holes are collected by the positive and negative electrodes; of the solar cell respectively. And generate current in the external circuit to obtain electrical energy. A power generation system that converts solar radiation energy into electrical energy via solar cells is called solar cell power generation system (also known as solar cell power generation systemphotovoltaic solar energy production). The operation mode of ground-mounted solar PV power generation system can be mainly divided into two categories: off-grid operation and online operation. Solar PV power generation systems that are not connected to the public grid are called off-grid solar PV power generation systems, also known as independent PV power generation systems. They are mainly used in areas without electricity and some remote special places. public network. The solar photovoltaic power generation system connected to the public power grid is called on-grid solar photovoltaic power generation system. It is an important direction for solar photovoltaic power generation to enter the stage of large-scale commercial power generation and devenir one of the components of the system. energy industry. It is the development of solar photovoltaic power generation technology in today's world.